Develop D 2500iD Service Manual

Service Manual

D 2500iD

Digital Copier

FrameMaker Ver.5.5E(PC) PL Standard Document Ver.03

99.01.27

Safety Precautions for Inspection and Service

When performing inspection and service procedures, observe the following precautions to prevent accidents and ensure utmost safety.

✽ Depending on the model, some of the precautions given in the following do not apply.

Different markings are used to denote specific meanings as detailed below.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

The following graphic symbols are used to give instructions that need to be observed.

Used to call the service technician’s attention to what is graphically represented inside the marking (including a warning).

Used to prohibit the service technician’s from doing what is graphically represented inside the marking.

Used to instruct the service technician’s to do what is graphically represented inside the marking.

WARNING

1. Always observe precautions.

•

Parts requiring special attention in this product will include a label containing the mark shown on the left plus precautionary notes. Be sure to observe the precautions.

•

Be sure to observe the “Safety Information” given in the Operator’s Manual.

2. Before starting the procedures, be sure to unplug the power cord.

•

This product contains a high-voltage unit and a circuit with a large current capacity that may cause an electric shock or burn.

•

The product also contains parts that can jerk suddenly and cause injury.

•

If this product uses a laser, laser beam leakage may cause eye damage or blindness.

3. Use the specified parts.

•

For replacement parts, always use the genuine parts specified in the manufacturer’s parts manual. Installing a wrong or unauthorized part could cause dielectric breakdown, overload, or undermine safety devices resulting in possible electric shock or fire.

•

Replace a blown electrical fuse or thermal fuse with its corresponding genuine part specified in the manufacturer’s parts manual. Installing a fuse of a different make or rating could lead to a possible fire. If a thermal fuse blows frequently, the temperature control system may have a problem and action must be taken to eliminate the cause of the problem.

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99.01.27

4. Handle the power cord with care and never use a multiple outlet.

•

Do not break, crush or otherwise damage the power cord. Placing a heavy object on the power cord, or pulling or bending it may damage it, resulting in a possible fire or electric shock.

•

Do not use a multiple outlet to which any other appliance or machine is connected.

•

Be sure the power outlet meets or exceeds the specified capacity.

5. Be careful with the high-voltage parts.

•

A part marked with the symbol shown on the left carries a high voltage. Touching it could result in an electric shock or burn. Be sure to unplug the power cord before servicing this part or the parts near it.

6. Do not work with wet hands.

•

Do not unplug or plug in the power cord, or perform any kind of service or inspection with wet hands. Doing so could result in an electric shock.

7. Do not touch a high-temperature part.

•

A part marked with the symbol shown on the left and other parts such as the exposure lamp and fusing roller can be very hot while the machine is energized.

Touching them may result in a burn.

•

Wait until these parts have cooled down before replacing them or any surrounding parts.

8. Maintain a grounded connection at all times. (This item may not apply in the USA.)

•

Be sure to connect the ground wire to the ground terminal even when performing an inspection or repair. Without proper grounding, electrical leakage could result in an electric shock or fire.

•

Never connect the ground wire to a gas pipe, water pipe, telephone ground wire, or a lightning conductor.

9. Do not remodel the product.

•

Modifying this product in a manner not authorized by the manufacturer may result in a fire or electric shock. If this product uses a laser, laser beam leakage may cause eye damage or blindness.

10. Restore all parts and harnesses to their original positions.

•

To promote safety and prevent product damage, make sure the harnesses are returned to their original positions and properly secured in their clamps and saddles in order to avoid hot parts, high-voltage parts, sharp edges, or being crushed.

•

To promote safety, make sure that all tubing and other insulating materials are returned to their original positions. Make sure that floating components mounted on the circuit boards are at their correct distance and position off the boards.

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99.01.27

CAUTION

1. Precautions for Service Jobs

•

A toothed washer and spring washer, if used originally, must be reinstalled.

Omitting them may result in contact failure which could cause an electric shock or fire.

•

When reassembling parts, make sure that the correct screws (size, type) are used in the correct places. Using the wrong screw could lead to stripped threads, poorly secured parts, poor insulating or grounding, and result in a malfunction, electric shock or injury.

•

Take great care to avoid personal injury from possible burrs and sharp edges on the parts, frames and chassis of the product.

•

When moving the product or removing an option, use care not to injure your back or allow your hands to be caught in mechanisms.

2. Precautions for Servicing with Covers and Parts Removed

•

Wherever feasible, keep all parts and covers mounted when energizing the product.

•

If energizing the product with a cover removed is absolutely unavoidable, do not touch any exposed live parts and use care not to allow your clothing to be caught in the moving parts. Never leave a product in this condition unattended.

•

Never place disassembled parts or a container of liquid on the product. Parts falling into, or the liquid spilling inside, the mechanism could result in an electric shock or fire.

•

Never use a flammable spray near the product. This could result in a fire.

•

Make sure the power cord is unplugged before removing or installing circuit boards or plugging in or unplugging connectors.

•

Always use the interlock switch actuating jig to actuate an interlock switch when a cover is opened or removed. The use of folded paper or some other object may damage the interlock switch mechanism, possibly resulting in an electric shock, injury or blindness.

3. Precautions for the Working Environment

•

The product must be placed on a flat, level surface that is stable and secure.

•

Never place this product or its parts on an unsteady or tilting workbench when servicing.

•

Provide good ventilation at regular intervals if a service job must be done in a confined space for a long period of time.

•

Avoid dusty locations and places exposed to oil or steam.

•

Avoid working positions that may block the ventilation ports of the product.

4. Precautions for Handling Batteries

•

Replace a rundown battery with the same type as specified in the manufacturer’s parts manual.

•

Before installing a new battery, make sure of the correct polarity of the installation or the battery could burst.

•

Dispose of used batteries according to the local regulations. Never dispose of them at the user’s premises or attempt to try to discharge one.

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99.01.27

.

5. Precautions for the Laser Beam (Only for Products Employing a Laser)

•

Removing the cover marked with the following caution label could lead to possible exposure to the laser beam, resulting in eye damage or blindness. Be sure to unplug the power cord before removing this cover.

•

If removing this cover while the power is ON is unavoidable, be sure to wear protective laser goggles that meet specifications.

•

Make sure that no one enters the room when the machine is in this condition.

•

When handling the laser unit, observe the “Precautions for Handling Laser

Equipment.”

DANGER

Invisible laser radiation when open.

AVOID DIRECT EXPOSURE

TO BEAM

0947-7127-01

1144D270AA

1167P001AA

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99.01.27

Other Precautions

•

To reassemble the product, reverse the order of disassembly unless otherwise specified.

•

While the product is energized, do not unplug or plug connectors into the circuit boards or harnesses.

•

The magnet roller generates a strong magnetic field. Do not bring it near a watch, floppy disk, magnetic card, or CRT tube.

•

An air gun and vacuum cleaner generates a strong electrostatic charge that can destroy the ATDC sensor and other sensors. Before cleaning a component with one of these devices, be sure to remove all the sensors. Otherwise, use a blower brush and cloth when cleaning parts.

•

When handling circuit boards with MOS ICs, observe the “INSTRUCTIONS FOR HAN-

DLING THE PWBs WITH MOS ICs” (applicable only to the products using MOS ICs).

•

The PC Drum is a very delicate component. Observe the precautions given in “HAN-

DLING OF THE PC DRUM” because mishandling may result in serious image problems.

•

Note that replacement of a circuit board may call for readjustments or resetting of particular items, or software installation.

•

After completing a service job, perform a safety check. Make sure that all parts, wiring and screws are returned to their original positions.

•

Check the area surrounding the service site for any signs of damage, wear or need of repair.

•

Do not pull out the toner hopper while the toner bottle is turning. This could result in a damaged hopper motor or locking mechanism.

•

If the product is to be run with the front door open, make sure that the toner hopper is in the locked position.

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99.01.27

Used Batteries Precautions

ALL Areas

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer.

Dispose of used batteries according to the manufacturer’s instructions.

Germany

VORSICHT!

Explosionsgefahr bei unsachgemäßem Austausch der Batterie.

Ersatz nur durch denselben oder einen vom Hersteller empfohlenen ähnlichen Typ.

Entsorgung gebrauchter Batterien nach Angaben des Herstellers.

France

ATTENTION

Ily a danger d’explosion s’ily a remplacement incorrec de la batterie.

Remplacer uniquement avec une batterie du meme type ou d’un type équivalent recommande par le constructueur.

Mettre au rebut les batteries usageés conformément aux instructions du fabricant.

Denmark

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering Udskiftning må kun ske med batteri af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandøren.

Norway

ADVARSEL

Eksplosjonsfare ved feilaktig skifte av batteri.

Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten.

Brukte batterier kasseres i henhold til fabrikantens instruksjoner.

Sweden

VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt fabrikantens instruktion.

Finland

VAROlTUS

Paristo voi räjähtää, los se on virheellisesti asennettu.

Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä Käytetty paristo valmistajan ohjeiden mukaisesti.

P-6

FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL

99.01.14

D 2500iD

GENERAL


99.01.14

CONTENTS

1. SAFETY INFORMATION ................................................................................. G-1

2. SPECIFICATIONS ........................................................................................... G-8

3. PRECAUTIONS FOR INSTALLATION ............................................................ G-10

4. PRECAUTIONS FOR USE .............................................................................. G-11

5. HANDLING OF THE CONSUMABLES ........................................................... G-12

6. OTHER PRECAUTIONS ................................................................................. G-12

7. SYSTEM OPTIONS ......................................................................................... G-13 i


99.01.14

1170SBG0100A

1

SAFETY INFORMATION

Laser Safety

This is a digital machine which prints by means of a laser. There is no possibility of danger from the laser, provided the machine is operated according to the instructions in this manual.

Since radiation emitted by the laser is completely confined within protective housing, the laser beam cannot escape from the machine during any phase of user operation.

This machine is certified as a Class 1 product. This means the machine does not produce hazardous laser radiation.

CAUTION: The use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure. Because of this, Develop strongly recommends that you operate your copy machine only as described in this documentation.

Internal Laser Radiation

Maximum Average Radiation Power: 36.7

µ

W at laser aperture of the print head unit

Wavelength: 770-810nm

This product employs a Class III b Laser Diode that emits an invisible laser beam.

The Laser Diode and Scanning Polygon Mirror are incorporated in the print head unit.

The print head unit is NOT A FIELD SERVICE ITEM.

Therefore, the print head unit should not be opened under any circumstances.

Laser Aperture of the Print Head Unit

1166O263AA

This figure shows the view inside the Right Side Door with the

Imaging Unit removed.

For United States

CDRH regulation

This copier is certified as a Class 1 Laser product under the Radiation Performance

Standard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for Laser products marketed in the United States and is reported to the Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration of the U.S.

Department of Health and Human Services (DHHS). This means that the device does not produce hazardous laser radiation.

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99.01.14

The label shown on page G-3 indicates compliance with the CDRH regulations and must be attached to laser products marketed in the United States.

CAUTION: Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

This is a semiconductor laser. The maximum power of the laser diode is 5mW and the wavelength is 770-810nm.

For Europe

CAUTION: Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

This is a semiconductor laser. The maximum power of the laser diode is 5mW and the wavelength is 770-810nm.

For Denmark

ADVARSEL

Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion.

Undgå udsættelse for stråling.

Klasse 1 laser produkt der opfylder IEC60825 sikkerheds kravene.

For Finland

LUOKAN 1 LASERLAITE

VAROITUS

Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

VARO

Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättomälle lasersäteilylle. Älä katso säteeseen.

For Sweden

KLASS 1 LASER APPARAT

VARNING

Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1.

VARNING

Osynlig laserstråining när denna del är öppnad och spärren är urkopplad. Betrakta ej stråien.

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99.01.14

For Norway

ADVERSEL

Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan brukeren utsettes för unsynlig laserstrålning, som overskrider grensen for laser klass 1.

Dette en halveder laser. Maksimal effekt till laserdiode er 5mW og b

φ lgelengde er 770-

810nm.

Laser Safety Label

A laser safety label is attached to the outside of the copy machine as shown below.

Laser safety label

For Europe

CLASS 1 LASER PRODUCT

LASER KLASSE 1 PRODUKT

For United States

Manufacturer’s

Name Plate 1166O261DA

MINOLTA CO., LTD

2, Higashiakatsuchi, Yawata-cho, Toyokawa-shi

Aichi-ken 442-8585, Japan

MANUFACTURED:

THIS PRODUCT COMPLIES WITH 21 CFR

CHAPTER I, SUBCHAPTER J.

0946-7101-14

1166O248AA

The Manufacturer’s Name Plate is affixed at the position illustrated above.

Please write down the Model Name and Serial No. of your copier here.

Model:

Serial No.:

G-3


99.01.14

Label inside copy machine

The following laser safety label will be attached inside the copy machine as shown below.

Please read the following for your own protection.

Caution

Opening the cover indicated by the Caution label may expose you to harmful laser radiation which could cause damage or loss of eyesight. Do not open the cover when the power is on.

1166O234AA

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99.01.14

ALL Areas

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer.

Dispose of used batteries according to the manufacturer’s instructions.

Germany only

VORSICHT!

Explosinsgefahr bei unsachgemäßen austausch der batterie. Ersatz nur durch denselben oder einen vom hersteller empfohlenen ähnlichen typ. Entsorgung gebrauchter batterien nach angaben des herstellers.

Denmark only

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering

Udskiftning må kun ske med batteri af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandøren.

Norway only

ADVARSEL

Eksplosjonsfare ved feilaktig skifte av batteri.

Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten.

Brukte batterier kasseres i henhold til fabrikantens instruksjoner.

Sweden only

VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt fabrikantens instruktion.

Finland only

VAROlTUS

Paristo voi räjähtää, los se on virheellisesti asennettu.

Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä Käytetty paristo valmistajan ohjeiden mukaisesti.

G-5


99.01.14

ALL Areas

CAUTION

“Replace only with the same or equivalent type recommended by the manufacturer.

Dispose of used IC Package according to the manufacturer’s instructions.”

Germany only

VORSICHT!

⇒

”Austausch nur durch denselben oder einen vom Hersteller empfohlenen, gleichwertigen typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers.

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99.01.14

Service Precautions

(1) Precautions

Refer to DISASSEMBLY/CLEANING for the Disassembly procedure.

1. When unplugging connectors on the P.W.B.s themselves, always make sure the power is OFF first. Be sure to unplug the copier before disassembling and cleaning.

2. Always unplug connectors by holding the connector housing. Pulling on the wires can lead to problems with poor contact.

3. It is recommended that a body ground not be used when carrying out any troubleshooting procedure. Be sure to ground DC lines to a ground test point on the P.W.B.

(2) At Replacement/Adjustment/Cleaning

1. Be sure to handle the Fusing Unit carefully. It remains hot a while after the copier is turned off.

2. Do not disassemble the Imaging Cartridge or Print Head Unit.

3. Do not expose the PC Drum of the Imaging Cartridge to direct sunlight or to room lighting for more than 5 minutes.

4. Turn off the power before removing the Print Head Unit to protect the eyes from possible exposure to the laser beam.

5. Use only a Fuse of the indicated rating.

(3) During Operation

1. Keep your hands, clothing, etc. well away from operating or rotating parts.

2. Never touch the terminals of electrical parts or high voltage parts.

3. This copier uses an invisible laser beam. To prevent a laser beam leak, the copier performs a trial run to make sure the covers are in position.

Handling the P.W.B.

Observe the following precautions when handling a P.W.B. with ICs.

(1) During Transportation/Storage

1. During transport and storage, P.W.B.s should be kept in conductive bags or on mats and not taken out unless absolutely necessary.

2. P.W.B.s should be stored in a place where direct sunlight does not strike them.

3. Do not touch IC terminals with your hands.

(2) At Replacement

1. Before removing connectors from a P.W.B., make sure the copier has been unplugged.

2. When P.W.B.s are taken out of their conductive bags or off their mats, hold them by their edges to avoid touching the terminals or the patterned surfaces.

3. Before installing connectors on a P.W.B., make sure the copier has been unplugged.

G-7


99.01.14

1170SBG0200A

2

SPECIFICATIONS

TYPE

PHOTOCONDUCTOR

COPYING SYSTEM

: Console/Desktop Type

: Organic Photoconductor

: Electrostatic Dry Powdered Image Transfer to Plain Paper with a Laser

: 600 dpi ORIGINAL SCANNING

RESOLUTION

PAPER FEEDING

SYSTEM

: 3-way system Manual Feed Tray: Single sheet feeding

Multi-Purpose (MP) Cassette:

Plain paper: Approx. 250 sheets

Special paper: Approx. 20 sheets

500-Sheet Cassette: Approx. 500 sheets

EXPOSURE SYSTEM : Mirror Scanning, Slit Exposure

DEVELOPING SYSTEM : MT-HG System

CHARGING SYSTEM : Comb Electrode (1) DC Negative Corona with Scorotron

System

: Roller Image Transfer

: Paper Separator Fingers and Charge Neutralizing Plate

IMAGE TRANSFER

PAPER SEPARATING

SYSTEM

FUSING SYSTEM

PAPER DISCHARGING

SYSTEM

MAXIMUM ORIGINAL

SIZE

:

:

:

Heat Roller

Charge Neutralizing Brush

A3L, 11”

×

17”L

COPY MEDIUM

Paper Source

Plain paper (60 to 90 g/m

2

)

Transparencies

Medium Thick paper (91 to 157 g/m

2

)

Postcards (190 g/m

2

)

Dimensions

Recycled paper

Maximum (Width

×

Length)

Minimum (Width

×

Length)

❍ : Permissible − : Not permissible

MULTIPLE COPIES

WARMING-UP TIME

FIRST COPY TIME

MP Cassette

❍

❍

❍

❍

❍

297

×

432 mm

90

×

140 mm

Manual Feed Tray

❍

❍

❍

❍

❍

297

×

432 mm

90

×

140 mm

: 1 to 99

: 60 sec. or less with room temperature of 23°C and rated power voltage

: 5.8 sec. (A4C, MP Cassette, full size mode)

5.9 sec. (8-1/2”

×

11”C, MP Cassette, full size mode)

G-8


99.01.14

CONTINUOUS COPY SPEED (copies/min.)

- Metric -

Size

A3L

B4L

A4L

A4C

B5L

B5C

Speed

14

16

19

25

22

29

ZOOM RATIOS

Fixed

Variable

Size

11”

×

17”L

8-1/2”

×

14”L

8-1/2”

×

11”L

8-1/2”

×

11”C

- Inch -

Full Size

Enlargement

Reduction

- Metric -

×

1.000

×

2.000

×

1.414

×

1.224

×

1.154

×

0.866

×

0.816

×

0.707

×

0.500

25% to 400% (in 0.1% increments)

- Inch -

×

1.000

×

2.000

×

1.545

×

1.294

×

1.214

×

0.785

×

0.733

×

0.647

×

0.500

Speed

14

17

20

25

LENS : Through Lens (F = 4.0, f = 62 mm)

EXPOSURE LAMP : Fluorescent Lamp

FUSING TEMPERATURE : 190°C

POWER/CURRENT CONSUMPTION (Copier Only)

Exposure Lamp

(Rating)

Fusing Roller Heater

Lamp (Rating)

Max. Power Consumption (full system)

24V

20W

660W 850W

Max. Current Consumption (full system)

120V, 8A

230V, 4A

POWER

REQUIREMENTS

: 120V, 230V, 50/60Hz

ENVIRONMENTAL CONDITIONS

Temperature 10 to 32°C with a fluctuation of 10°C or less per hour

Humidity 15 to 85% RH with a fluctuation of 10% RH or less per hour

Ambient Illumination 3,000 lux or less

Levelness 1° (1.75 mm/100 mm)

DIMENSIONS

WEIGHT

: Width ... 566 mm, 22-1/4”

Depth ... 707 mm, 27-3/4”

Height ... 635 mm, 25”

: 53.5 kg, 118 lbs.

G-9


99.01.14

1170SBG0300A

3

PRECAUTIONS FOR INSTALLATION

Installation Site

To ensure safety and utmost performance of the copier, the copier should NOT be used in a place:

•

Where it will be subjected to extremely high or low temperature or humidity.

•

Which is exposed to direct sunlight.

•

Which is in the direct air stream of an air conditioner, heater or ventilator.

•

Which puts the operator in the direct stream of exhaust from the copier.

•

Which has poor ventilation.

•

Where ammonia gas might be generated.

•

Which does not have a stable, level floor.

•

Where it will be subjected to sudden fluctuations in either temperature or humidity. If a cold room is quickly heated, condensation forms inside the copier, resulting in blank spots in the copy.

•

Which is near any kind of heating device.

•

Where it may be splashed with water.

•

Which is dirty or where it will receive undue vibration.

•

Which is near volatile flammables or curtains.

Power Source

Use an outlet with a capacity of 120V/8A, or 220V to 240V/4A or more.

•

If any other electrical equipment is sourced from the same power outlet, make sure that the capacity of the outlet is not exceeded.

•

Use a power source with little voltage fluctuation.

•

Never connect by means of a multiple socket any other appliances or machines to the outlet being used for the copier.

•

Make the following checks at frequent intervals:

✽ Is the power plug abnormally hot?

✽ Are there any cracks or scrapes in the cord?

✽ Has the power plug been inserted fully into the outlet?

✽ Does something, including the copier itself, ride on the power cord?

•

Ensure that the copier does not ride on the power cord or communications cable of other electrical equipment, and that it does not become wedged into or underneath the mechanism.

Grounding

To prevent receiving electrical shocks in the case of electrical leakage, always ground the copier.

•

Connect the ground wire to:

✽ The ground terminal of the outlet.

✽ A grounding contact which complies with the local electrical standards.

•

Never connect the ground wire to a gas pipe, the ground wire for a telephone, or a water pipe.

G-10


99.01.14

1170SBG0400A

4

PRECAUTIONS FOR USE

To ensure that the copier is used in an optimum condition, observe the following precautions.

•

Never place a heavy object on the copier or subject the copier to shocks.

•

Insert the power plug all the way into the outlet.

•

Do not attempt to remove any panel or cover which is secured while the copier is making copies.

•

Do not turn OFF the Power Switch while the copier is making copies.

•

Provide good ventilation when making a large number of copies continuously.

•

Never use flammable sprays near the copier.

•

If the copier becomes inordinately hot or produces abnormal noise, turn it OFF and unplug it.

•

Do not turn ON the Power Switch at the same time when you plug the power cord into the outlet.

•

When unplugging the power cord, do not pull on the cord; hold the plug and pull it out.

•

Do not bring any magnetized object near the copier.

•

Do not place a vase or vessel containing water on the copier.

•

Be sure to turn OFF the Power Switch at the end of the workday or upon power failure.

•

Use care not to drop paper clips, staples, or other small pieces of metal into the copier.

Operating Environment

The operating environmental requirements of the copier are as follows:

•

Temperature: 10°C to 32°C with a fluctuation of 10°C per hour

•

Humidity: 15% to 85% RH with a fluctuation of 10% RH per hour

Power Requirements

The power source voltage requirements are as follows:

•

Voltage Fluctuation: AC120/230V

±10% (Copying performance assured)

+10%

-15%

(Paper feeding performance assured)

•

Frequency Fluctuation: 50/60 Hz ±0.3%

G-11


99.01.14

1170SBG0500A

5

HANDLING OF THE CONSUMABLES

Before using any consumable, always read the label on the container carefully.

•

Use the right toner. The applicable copier model name is indicated on the toner bottle.

•

Paper is easily damaged by dampness. To prevent absorption of moisture, store paper, which has been removed from its wrapper but not loaded into the drawer, in a sealed plastic bag in a cool, dark place.

•

Keep consumables out of the reach of children.

•

Do not touch the PC Drum with bare hands.

•

Store the paper, toner, and other consumables in a place free from direct sunlight and away from any heating apparatus.

•

The same sized paper is of two kinds, short grain and long grain. Short grain paper should only be fed through the copier crosswise, long grain paper should only be fed lengthwise.

•

If your hands become soiled with toner, wash them with soap and water immediately.

•

Do not throw away any used consumables (PC Drum, starter, toner, etc.). They are to be collected.

NOTE

Do not burn, bury in the ground, or throw into the water any consumables (PC Drum, starter, toner, etc.).

1170SBG0600A

6

OTHER PRECAUTIONS

The Print Head Unit of this copier uses a laser diode that emits a laser beam. Use the following precautions when performing service jobs at the users’ premises.

•

When a service job needs to be performed in the laser beam path, such as when working around the Print Head Unit and PC Drum, be sure first to turn the copier OFF.

•

If the job requires that the power cord be left plugged in, observe the following precautions

1. Take off your watch, ring, and any other reflective object and wear laser protective goggles.

2. At the job site, select a place that is as far as possible away from the users and that is enclosed by walls.

3. Do not bring a highly reflective tool into the laser beam path during the service job.

G-12


99.01.14

1170SBG0700A

7

SYSTEM OPTIONS

12 1 2

1166O014AA

1166O008AA

5

3

1166O120AA

11

9

1166O121AA

10

1166O012AA

1145M035AA

7,8

1171G001AA

1166O015AA

4

1166O009AA

6

4608D018AA

1166O010AB

1166O011AA

1. Duplexing Document Feeder (AFR-14)

2. Automatic Document Feeder (AF-6)

3. Plug-In Counter

4. Printer Controller (Pi3500)

5. Duplex Unit (AD-10)

6. Large Capacity Cabinet (PF-106)

7. Paper Feed Unit (PF-108)

8. Paper Feed Unit (PF-110)

9. Shift Tray (OT-100)

10. Job Tray (JS-200)

11. Mailbin Finisher (FN-500)

12. Finisher (FN-100)

G-13


99.01.14

D 2500iD

MECHANICAL/

ELECTRICAL


99.01.14

CONTENTS

1. CROSS-SECTIONAL VIEW ............................................................................ M-1

2. COPYING PROCESS ...................................................................................... M-2

3. DRIVE SYSTEM .............................................................................................. M-4

4. OPERATING SEQUENCE .............................................................................. M-5

5. CPU OVERRUN MONITOR FUNCTION ......................................................... M-8

6. IMAGE STABILIZATION SYSTEM .................................................................. M-9

7. IMAGING CARTRIDGE (I/C) ........................................................................... M-10

7-1. I/C Drive Mechanism ............................................................................... M-11

7-2. Identification and Life of I/C ..................................................................... M-11

8. PC DRUM ........................................................................................................ M-12

9. DRUM CHARGING .......................................................................................... M-13

10. ERASE LAMP .................................................................................................. M-14

11. IR SECTION .................................................................................................... M-15

11-1. Exposure Section: Construction and Function ....................................... M-16

11-2. Image Processing Flow .......................................................................... M-17

11-3. Original Size Detection ........................................................................... M-18

11-4. Original Size Detection Timing ............................................................... M-20

11-5. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism ................... M-21

12. PH SECTION ................................................................................................... M-22

12-1. PH Components ..................................................................................... M-23

12-2. Laser Emission Timing (SOS Signal) ..................................................... M-24

13. DEVELOPING UNIT ........................................................................................ M-25

13-1. Sleeve/Magnet Roller ............................................................................. M-26

13-2. Developing Bias ...................................................................................... M-27

13-3. ATDC Sensor ......................................................................................... M-28

13-4. Sub Hopper Toner Replenishing Mechanism ......................................... M-29

13-5. Sub Hopper Toner Empty Detecting Mechanism ................................... M-30

13-6. Main Hopper Toner Replenishing Mechanism ....................................... M-31

13-7. I/C Cooling Fan Motor ............................................................................ M-32

13-8. Ozone Fan Motor .................................................................................... M-32

14. PAPER TAKE-UP/FEED SECTION ................................................................ M-33

14-1. MP Cassette Paper Lifting Plate ............................................................. M-33

14-2. MP Cassette-in-Position Detection ......................................................... M-34

14-3. MP Cassette Paper Empty Detection ..................................................... M-35

14-4. MP Cassette Paper Size Detection ........................................................ M-36

14-5. Paper Take-Up Mechanism .................................................................... M-37

14-6. Manual Bypass Tray ............................................................................... M-37

14-7. Paper Take-Up Retry Mechanism .......................................................... M-38

15. SYNCHRONIZING ROLLERS ......................................................................... M-39

15-1. Synchronizing Roller Drive Mechanism/Control ..................................... M-39

15-2. Paper Dust Remover .............................................................................. M-40

16. IMAGE TRANSFER AND PAPER SEPARATION ........................................... M-41

17. PC DRUM PAPER SEPARATOR FINGERS ................................................... M-42

18. PC DRUM CLEANING ..................................................................................... M-43 i


99.01.14

19. FUSING UNIT .................................................................................................. M-44

19-1. Drive Mechanism .................................................................................... M-45

19-2. Fusing Rollers Pressure Mechanism ...................................................... M-45

19-3. Fusing Temperature Control ................................................................... M-46

19-4. CPM Control ........................................................................................... M-47

20. PAPER EXIT UNIT .......................................................................................... M-48

21. FUSING COOLING FAN MOTOR ................................................................... M-49

22. POWER UNIT COOLING FAN MOTOR .......................................................... M-50 ii


99.01.14

1170SBM0100A

1

CROSS-SECTIONAL VIEW

1 2 3 4 5 6 7 8 9

10

23

1. 2nd Mirror

2. 3rd Mirror

3. Exposure Lamp

4. 1st Mirror

5. Lens

6. CCD Unit

7. Paper Exit Roller

8. Fusing Roller Thermostat (TS1)

9. Fusing Roller Heater Lamp (H1)

10. Paper Exit Sensor (PC3)

11. Right Fusing Roller

12. Left Fusing Roller

22

1171M037AB

21 20

13. Fusing Cooling Fan Motor (M3)

14. Image Transfer Roller

15. Synchronizing Roller

16. Synchronizing Roller Sensor (PC2)

17. Manual Feed Paper Take-Up Sensor

(PC8)

18. Manual Feed Paper Take-Up Roll

19. Vertical Transport Roller

20. Paper Separator Pad

21. Paper Take-Up Roll

22. Imaging Cartridge (I/C)

23. PH Unit

M-1

11

12

13

17

18

19

14

15

16


99.01.14

1170SBM0200A

2

COPYING PROCESS

14. Paper Exit

3. Photoelectric Conversion

Section

4. HGB Board

5. MFB Board

11. Cleaning

12. Erase

2. Drum Charging

6. Laser Exposure 1. PC Drum

13. Fusing

10. Paper Separation

9. Image Transfer

7. Development

8. Paper Feed

8. Paper Feed

1. PC Drum

•

The drum is an aluminum cylinder coated with photosensitive material on which an electrostatic latent image is produced.

2. Drum Charging

•

A scorotron charger employing a comb electrode generates a negative DC charged layer on the surface of the PC Drum.

3. Photoelectric Conversion Section

•

The Exposure Lamp directs light onto the original. The light reflected off the original is directed and resized by the mirrors and lens so as to produce a reduced-size image on the CCD Sensor.

4. HGB Board

•

Converts an electric signal into a corresponding 8-bit digital image signal (A/D conversion), makes various corrections, and outputs the results to the MFB Board.

5. MFB Board

•

Compresses the image data received from the HGB Board, stores it, and uncompresses it.

6. Laser Exposure

•

The laser beam emitted from the LD (laser diode) strikes the surface of the PC Drum, creating an electrostatic latent image.

7. Development

•

Negatively charged toner adheres to the latent image on the PC Drum surface, creating a visible image.

8. Paper Feed

•

Feeds sheets of paper from the appropriate paper source.

9. Image Transfer

•

An Image Transfer Roller is used. A positive charge applied to the roller causes the visible image on the surface of the PC Drum to transfer onto the front side of the paper.

M-2


99.01.14

10. Paper Separation

•

The PC Drum Separator Fingers remove paper from the surface of the PC Drum.

11. Cleaning

•

The Cleaning Blade scrapes residual toner off the surface of the PC Drum and the toner is recycled back to the Developing Unit.

12. Erase

•

The PC Drum is exposed to light, which effectively removes any residual charge from the drum surface.

13. Fusing

•

Heat and pressure applied by the Right and Left Fusing Rollers fuse toner on the paper.

14. Paper Exit

•

Feeds paper out of the copier.

M-3


99.01.14

1170SBM0300A

3

DRIVE SYSTEM

A

B C

1171M024AB

A. Scanner Motor (M5)

Drives the Scanner and 2nd/3rd Mirrors Carriage.

B. I/C Motor (M1)

Drives the I/C Unit.

C. Main Motor (M2)

Drives the Paper Take-Up Roll, Manual Feed Paper Take-Up Roll, Synchronizing Roller,

Image Transfer Roller, and Fusing Unit.

M-4


99.01.14

1170SBM0400A

4

OPERATING SEQUENCE

A The power cord is plugged into the power outlet.

ON

The Power Supply Unit outputs DC24V for the Dehumidifying Heater (option).

B The Power Switch is turned ON.

ON

ON

DC voltage output

Control panel display

Approx.

560 msec.

ON

Fusing Roller Heater Lamp

C The warming-up cycle is completed.

ON

Main Motor Approx. 20 sec.

OFF

ON

Predrive stops

Power Unit Cooling Fan Motor turns at full speed.

Developing bias (DC)

Power Unit Cooling Fan Motor turns at half speed.

Approx.

100 msec.

ON

ON

I/C Motor

Image transfer output: - voltage

Approx.

700 msec.

ON

Image transfer output:

+ voltage

Approx.

400 msec.

ON


- voltage

Approx.

400 msec.

ON


+ voltage

Approx.

400 msec.

ON


- voltage

T/C ratio is checked for abnormality for approx. 28 sec.

Normal T/C

Abnormal T/C: approx. 31 sec.

OFF

I/C Motor

Approx.

400 msec.

OFF

Image transfer output

Approx.

15 min.

OFF

Developing bias

(DC)

M-5


99.01.14

D The Start key is pressed.

ON

ON

Polygon Motor

Fusing Cooling Fan Motor

Approx. 6 sec.

ON

Laser

ON


Approx.

100 msec.

ON


Approx.

140 msec.

ON

ON

Approx.

1.1 sec.

ON

Image transfer current value for non-printing timing between sheets of paper

I/C Motor

Main Motor

The Power Unit Cooling Fan Motor turns at full speed.

The Ozone Fan Motor turns at full speed.

Approx.

700 msec.

ON

Paper Take-Up Solenoid

E The Synchronizing Roller Sensor is activated.

Approx.

110 msec.

OFF


VSYNC signal ON: approx. 50 msec. later

ON

ON

ON


Synchronizing Clutch

Developing bias (AC)

Approx.

160 msec.

ON

Approx.

90 msec.

OFF

Paper Take-Up

Solenoid

Image transfer current value for printing

F The Synchronizing Roller Sensor is deactivated.

Approx.

130 msec.

OFF

Approx.

170 msec.

OFF

Approx.

320 msec.

ON

Synchronizing Clutch

Developing bias (AC)


Approx.

650 msec.

OFF

I/C Motor

Approx.

15 min.

OFF


OFF

Laser

M-6


99.01.14

G The Paper Exit Sensor is deactivated.

Approx.

680 msec.

OFF

OFF

Main Motor

The Power Unit Cooling Fan Motor turns at half speed.

Polygon Motor

Approx. 10 sec.

OFF

Ozone Fan Motor

Approx. 20 sec.

OFF

Fusing Cooling Fan Motor

M-7


99.01.14

1170SBM0500A

5

CPU OVERRUN MONITOR FUNCTION

•

CPU Overrun Monitor Function (Watchdog Function)

The watchdog function is a self-monitoring function that determines whether any of the

CPUs mounted on the control board overrun.

•

If this function detects that a CPU overruns, the copier automatically resets the CPU, thereby restarting the logic circuit and mechanism.

•

Even if a copier CPU operates erratically due to electrical noise, therefore, the copier is able to recover from the faulty condition so that the number of visits made by the Tech.

Rep. for CPU overrun can be minimized.

•

Processing performed during watchdog function:

If a faulty condition is detected, the copier resets the CPU and performs a restart sequence. Since this sequence of operations is performed even during a copy cycle, the copier detects a sheet or sheets of paper left inside it as a misfeed while it is being restarted.

M-8


99.01.14

1170SBM0600A

6

IMAGE STABILIZATION SYSTEM

•

The following image stabilization controls are provided to ensure stabilized copy image.

PC Drum temperature correction

Item

PC Drum deterioration correction

Purpose

To compensate for degraded sensitivity caused by a deteriorating PC Drum.

Control

To compensate for any change in ID due to changing PC Drum temperatures.

The I/C Thermistor is used to detect temperature and, according to the detected temperature, Vg/Vb is corrected.

Corrects Vg according to the period of time during which the

PC Drum has turned.

PC Drum Charge Corona

Grid Voltage: (Vg)

PC Drum

I/C Thermistor (TH2)

PC Drum Revolution

Counter

Sleeve/

Magnet Roller

Developing Bias: (Vb)

CPU

1171M028AA

M-9


99.01.14

1170SBM0700A

7

IMAGING CARTRIDGE (I/C)

•

This copier employs an Imaging Cartridge (“I/C” in this manual) that contains a PC Drum,

PC Drum Charge Corona, Developing Unit, and Cleaning Unit as one unit.

Toner Supply Port

1171M002AA

1171M001AA

ATDC Sensor (E1)

1171M003AA

M-10


99.01.14

1170SBM0701A

7-1.

I/C Drive Mechanism

•

Drive from the I/C Motor is transmitted via a gear train to the PC Drum and Hopper.

PC Drum Drive Gear

I/C Motor (M1)

Hopper Drive Gear

1171M004AA

Electrical Component

M1

Control Signal

PJ16A-3

ON

L

OFF

H

1170SBM0702A

7-2.

Identification and Life of I/C

•

When the Start key is pressed or the Side Cover is opened and closed, the copier determines whether the I/C is new or one which has been used previously.

•

The copier monitors the I/C life by storing in memory the period of time during which the

PC Drum has turned. The data is cleared when a new I/C is installed in the copier.

M-11


99.01.14

1170SBM0800A

8

PC DRUM

•

The PC Drum used in this copier is the organic photoconductor (OPC) type.

The drum consists of an aluminum base coated with a charge generation layer and a charge transport layer.

Handling Precautions

Prolonged exposure to light can cause the photoconductor surface of the drum to suffer light fatigue, resulting in a loss of photosensitivity. If the I/C is removed from the copier, it should be wrapped in a soft, clean, opaque cloth or other protective covering to prevent exposure to light.

PC Drum

PC Drum Cross-Section

Charge Transport Layer

Charge Generation Layer

Aluminum Base

1167M007AA 1139M007AA

Gear

•

Grounding of the PC Drum

The PC Drum ground point is located inside and at the front end of the I/C as viewed from the front of the copier and in constant contact with the Drum Holding Shaft. When the I/C is installed in the copier, the Drum Holding Shaft contacts the ground point. This provides for assured grounding of the PC Drum through the ground plate in the rear to the frame of the copier.

Ground Point

PC Drum

Ground Plate

Shaft

1171M005AA

M-12


99.01.14

1170SBM0900A

9

DRUM CHARGING

•

A scorotron charger system generates a negative DC corona discharge onto the PC

Drum surface. The grid mesh ensures uniform charging.

•

The grid voltage (Vg) applied to the grid mesh is controlled by the constant voltage circuitry within the High Voltage Unit. It is varied through image stabilization control.

•

To restrict ozone production, the copier uses a PC Drum Charge Corona with a comb electrode.


PC Drum

1171M006AB


Drum charging output

Comb Electrode

Grid Mesh

Control Signal

PJ14A-3A

ON

L

1171M008AC

OFF

H

M-13


99.01.14

1170SBM1000A

10

ERASE LAMP

•

Any potential remaining on the surface of the PC Drum is neutralized by both light from the Erase Lamp and a DC negative voltage applied by the Charge Neutralizing Sheet.

•

The Charge Neutralizing Sheet applies a negative charge on the surface of the PC Drum which is positively charged by the Image Transfer Roller. A voltage of -820V is applied to the Charge Neutralizing Sheet from the High Voltage Unit. The Erase Lamp then illuminates the surface of the PC Drum to further neutralize it.

•

The Erase Lamp consists of ten tungsten lamps.

Erase Lamp (LA1)

I/C

PC Drum

1171M009AD

Cleaning Blade

Charge Neutralizing Sheet

PC Drum

Erase Lamp (LA1)



LA1

1171M010AD

Sleeve/Magnet Roller

Control Signal

PJ11A-6A

All lamps ON

H

Standby ON

L

M-14


99.01.14

1170SBM1100A

11

IR SECTION

•

Light reflected from the original passes through three mirrors and a lens to form a reduced image on the CCD Sensor as the Scanner is moved by the Scanner Motor. The

CCD sensor converts the light pattern (image data) into an electrical image signal.

•

The electrical image signal is then output to the MFB Board.

8

7

5

6 9

10

4

3 11

2

1

12

20

14

15

19

16

17

18 1167M110AD

1. BCR Board (BCR)

2. Original Size Detecting Sensor 5 (UN8)

3. Original Cover Detecting Sensor (PC14)


5. Exposure Lamp (LA2)


7. Scanner Motor (M5)

8. HGB Board (HGB)




12. Scanner Home Position Sensor 1

(PC12)

13. Size Reset Switch (S5)

14. CCD Board (CCD)

15. Lens

16. Scanner

17. 1st Mirror

18. Scanner Home Position Sensor 2

(PC13)

19. 2nd/3rd Mirrors Carriage

20. Inverter Board (INV)

13

M-15


99.01.14

1170SBM1101A

11-1. Exposure Section: Construction and Function

1. Auxiliary Reflector

2. Exposure Lamp

3. 1st Mirror

1167M089AA

1. Auxiliary Reflector

When a book or other bound original is copied, the paper in the area near the binding generally fails to come flush against the glass, so that the copy of these areas is generally too dark. The Auxiliary Reflector reduces this problem by reflecting light from the

Exposure Lamp onto these areas of the original.

2. Exposure Lamp

A fluorescent lamp is used to illuminate the original.

3. 1st Mirror

Directs the reflected light from the original to the 2nd Mirror.


LA2

Control Signal

CN13BCR-1

ON

L

OFF

H

M-16


99.01.14

1170SBM1102A

11-2. Image Processing Flow

•

Image processing is made up of the following blocks.

1. Photoelectric Conversion (CCD Sensor)

2. HGB Board

Transmitted over an optical cable.

3. MFB Board

4. PH (Laser Emission)

1. Photoelectric Conversion (CCD Sensor)

•

Light reflected off the original is received through mirrors and lens by the CCD Sensor which, in turn, outputs the corresponding data to the HGB Board.

2. HGB Board

•

After converting the data received from the CCD to an analog signal, the board converts it to 8-bit image data (A/D conversion). It further makes various corrections and outputs the resultant image data to the MFB Board over an optical cable.

3. MFB Board

•

This board compresses the image data received from the HGB Board, stores it, and uncompresses it.

•

The image memory has a standard capacity of 16MB and can be expanded up to 64MB

(optional).

4. PH

•

Emits a laser beam according to the image data provided by the MFB Board to expose the surface of the PC Drum.

M-17


99.01.14

1170SBM1103A

11-3. Original Size Detection

•

When the copier is in Auto Paper or Auto Size, the sensors mounted in the IR receive light reflected off the original to allow the copier to determine the original size.

Original Size Detecting Sensor 4

(UN7)

Original Size Detecting Sensor 6 (UN9)

Original Size Detecting Sensor 1 (UN4)

Original Size Detecting Sensor 2

(UN5)

Original Size

Detecting Sensor

3 (UN6) Original Size

Detecting Sensor

5 (UN8)


UN4

UN5

UN6

UN7

UN8

UN9

Control Signal

CN4BCR-4

CN5BCR-7

CN11HGB-4

CN6BCR-4

CN9HGB-1

CN8BCR-4

Blocked

L

L

L

L

L

L

1171M025AD

Unblocked

H

H

H

H

H

H

M-18


99.01.14

<Original Size Identification: Metric Areas>

UN4

Original Size

UN5

11”

A3L

×

17”

S1

❍

❍

S2

❍

❍

S3

❍

❍

A4L

A4C

❍

❍

❍

❍ ❍

S4

❍

❍

❍

A5L

B4L

FLS

Letter L

Letter C

Legal

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍ ❍

❍ : Detected by sensor; L: Lengthwise; C: Crosswise

UN6 UN7

S5 S6

❍

❍ ❍

❍

❍

❍

❍

❍

NOTE

UN4, UN6 and UN8 are options.

S7

❍

❍

UN8

S8

❍

❍

❍

❍

❍

❍

❍

UN9

S9

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍

<Original Size Identification: Inch Areas>

UN5

Original Size

11”

A3L

×

17”

S2

❍

❍

S3

❍

❍

S4

❍

❍

A4L

A4C

❍

❍ ❍ ❍

❍ ❍ B4L

5-1/2”

×

8-1/2”L

FLS ❍

B5C ❍ ❍

Letter L ❍

Letter C ❍ ❍ ❍

Legal ❍

UN6

S5

❍

❍

❍ : Detected by sensor; L: Lengthwise; C: Crosswise

NOTE

UN6, UN8 and UN9 are options.

UN7

S6

❍

❍

❍

❍

❍

❍

❍

❍

S7

❍

❍

UN8

S8

❍

❍

❍

❍

❍

UN9

S9

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍

❍

M-19


99.01.14

1170SBM1104A

11-4. Original Size Detection Timing

The copier CPU affirms and resets the readings of the original size at the following timings.

•

Takes size readings:

When the Original Cover Detecting Sensor is deactivated.

•

Affirms size readings:

When the Start key is pressed with the Original Cover Detecting Sensor activated or the

Size Reset Switch deactuated.

•

Resets size readings:

When the Size Reset Switch is deactuated.

Magnet

Original Cover

Detecting Sensor

(PC14)

Size Reset Switch (S5)


S5


PC14

Control Signal

CN9BCR-2

Control Signal

CN10BCR-2

ON

L

Unblocked

L

1167M113AB

OFF

H

Blocked

H

M-20


99.01.14

1170SBM1105A

11-5. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism

<Scanner>

•

During a scan, the Scanner projects an even amount of light from the Exposure Lamp onto the entire surface of the original. The light is reflected from the original to the 1st

Mirror of the scanner and then to the 2nd and 3rd Mirrors.

•

The Scanner is driven by the Scanner Motor and front and rear Scanner Drive Cables.

•

Scanner speed is determined by the set zoom ratio in reference to the full size mode.

•

The Scanner is at home position when Scanner Home Position Sensor 1 is blocked. This position serves as the reference for the scan motion.

•

Scanner Home Position Sensor 2 determines the home position of the Scanner when

AF-7 is used.

<2nd/3rd Mirrors Carriage>

•

The 2nd and 3rd Mirrors are mounted to their holder at right angles to each other. They direct the light reflected off the 1st Mirror through the lens to the CCD.

•

The 2nd/3rd Mirrors Carriage is also moved by the Scanner Drive Cables and pulleys driven by the Scanner Motor. It travels at a speed half that of the Scanner, thereby keeping constant the optical path length between the Original Glass and lens.

Scanner Motor (M5)

Scanner Home

Position Sensor 1

(PC12)

2nd/3rd Mirrors Carriage


M5


PC12

PC13

Control Signal

CN3BCR-1~3

Control Signal

CN11BCR-1

CN12BCR-1

Scanner

Scanner Home Position

Sensor 2 (PC13)

1167M112AA

Forward

Rotation

Backward

Rotation

Pulse output

Blocked

L

L

Unblocked

H

H

M-21


99.01.14

1170SBM1200A

12

PH SECTION

•

Based on the image data output from the MFB Board, the LD (laser diode) is activated and the corresponding light strikes the surface of the PC Drum.

PH Unit

1171M035AB

M-22


99.01.14

1170SBM1201A

12-1. PH Components

4

3

2

1

5 6

1. Polygon Motor (M10)

2. Cylindrical Lens

3. SOS Mirror

4. Collimator Lens


M10

Control Signal

PJ8A-3

7

1167M023AB

5. Laser Diode Board (PWB-B)

6. SOS Sensor

7. f-

θ

Lens

ON

L

OFF

H

M-23


99.01.14

1170SBM1202A

12-2. Laser Emission Timing (SOS Signal)

•

The signal output from the Master Board triggers the firing of the laser. The laser beam travels to the Polygon Mirror, lens, and SOS Mirror to eventually hit the SOS Sensor, which generates an SOS signal.

•

The SOS signal determines the laser emission timing for each line in the main scanning direction.

Polygon Motor

(M10)

Cylindrical Lens

SOS Mirror

Collimator Lens

Laser Diode Board

(PWB-B)

SOS Sensor

Polygon Mirror f-

θ

Lens

PC Drum

1167M024AC

PC Drum

D C

SOS Mirror

B

A to B: LD activation

B to C: LD OFF

C to D: Laser beam exposure area according to the image data

SOS

Sensor

SOS Signal

A

1171M038AA

M-24


99.01.14

1170SBM1300A

13

DEVELOPING UNIT

•

The Toner Conveying Rollers mix the toner and carrier particles together and carry the toner/carrier mixture up to the Sleeve/Magnet Roller. The magnetic brush formed on the surface of the roller allows the toner to come into contact with the charges on the surface of the PC Drum, thus forming an electrostatic latent image.

1 2 3 4 5

6

14

7

8

13 12 11

1. Spent Toner Recycling Coil

2. PC Drum Charge Corona

3. Spent Toner Feed Roller 2

4. Cleaning Blade

5. Spent Toner Feed Roller 1

6. PC Drum Paper Separator Finger

7. PC Drum Protective Shutter

9

1171M011AB

10

8. PC Drum

9. Sleeve/Magnet Roller

10. 1st Toner Conveying Roller

11. ATDC Sensor (E1)

12. 2nd Toner Conveying Roller

13. 3rd Toner Conveying Roller

14. Spent Toner Recycling Duct

M-25


99.01.14

1170SBM1301A

13-1. Sleeve/Magnet Roller

•

This copier employs the MT-HG system with a Sleeve/Magnet Roller having the following magnetic characteristics.

•

Turning of the sleeve surrounding the Magnet Roller ensures that fresh developer from the Developer Mixing Chamber is always being conveyed to the point of development with respect to the PC Drum.

N1 : The point of development with the maximum magnetic flux density which ensures that the carrier is firmly held onto the Sleeve Roller when toner is attracted to the latent image.

S1, N2 : The magnetic flux density between these two poles is made low to ensure that the developer remaining on the surface of the Sleeve Roller is smoothly recycled. They also prevent developer from scattering.

N3

S2a

: The developer brush is formed by this pole and its height is moderated before the brush is regulated by the Doctor Blade.

: This pole ensures that the developer is conveyed to the point of development over the wide interval between N3 and N1.

S2b : If developer is compacted and clogs at the Doctor Blade and, as a result, part of the surface of the Sleeve/Magnet Roller is not covered with developer, the nearby developer around this pole with a weak magnetic force goes to those uncovered areas. This helps prevent white lines from occurring on the copy.

N1 PC Drum

S2a

S2b

N3

S1

N2 1171M027AA

Sleeve/

Magnet Roller

1st Toner Conveying Roller

1167M076AB

M-26


99.01.14

1170SBM1302A

13-2. Developing Bias

•

The amount of toner attracted onto the surface of the PC Drum is controlled by varying the developing bias voltage.

•

As the PC Drum deteriorates and its photoconductive layer begins to wear, it becomes more sensitive to the increase in the amount of toner. As a countermeasure against this problem, the developing bias voltage is automatically switched according to the PC Drum temperature, thereby stabilizing the image quality level.

PC Drum

Sleeve/Magnet Roller


Vb

Control Signal

PJ14A-1A

1171M012AB

Developing Bias Contact Terminal

ON

L

OFF

H

M-27


99.01.14

1170SBM1303A

13-3. ATDC Sensor

•

The ATDC Sensor automatic adjustment is made when a new I/C is installed in the copier. Toner replenishing control is thereafter controlled as detailed in the following.

1. ATDC Sensor Automatic Adjustment

•

The ATDC Sensor is automatically adjusted when a new I/C is loaded in the copier. During this sequence, the copier reads the sensor output value and sets it as the reference.

This reference value is stored in memory and used until the I/C reaches its service life.

2. Toner Replenishing Control

•

While the I/C Motor is turning, the ATDC Sensor samples T/C and, according to the readings, the copier provides the following controls.

T/C Ratio (%)

More than 19

14 to 19

Sampling Data (V)

Less than 1.41

2.32 to 1.41

Control Details

Defective ATDC Sensor

13 to 14 2.50 to 2.32

Toner replenished for 0 msec.

Toner replenished for 54 msec. at intervals of approx. 1 sec.

12 to 13

10 to 12

2.68 to 2.50

3.10 to 2.68

Toner replenished for 150 msec. at intervals of approx. 1 sec.

Toner replenished for 378 msec. at intervals of approx. 500 msec.

7 to 10

Less than 7

3.92 to 3.10

More than 3.92

Passed onto the T/C recovery mode.

Defective ATDC Sensor

✽ Toner replenishment represents the operation of the Sub Hopper Toner Replenishing

Motor.

3. Toner Empty Control (T/C Recovery Mode)

•

When the control is passed onto the T/C recovery mode, the Sub Hopper Toner Replenishing Motor is energized to replenish the supply of toner into the Developing Unit and, if

T/C is recovered to a level of 14% or higher (2.32V or less) within 150 sec., it resets the toner-empty condition.

M-28


99.01.14

1170SBM1304A

13-4. Sub Hopper Toner Replenishing Mechanism

•

Toner is replenished from the Sub Hopper to the Developing Unit by turning the Sub Hopper Toner Replenishing Motor for the period of time controlled by the ATDC output voltage (T/C).

Sub Hopper


M7

Sub Hopper Toner Replenishing Motor (M7)

1171M013AC

Control Signal

PJ11A-8A

ON

DC24V

OFF

L

M-29


99.01.14

1170SBM1305A

13-5. Sub Hopper Toner Empty Detecting Mechanism

•

A toner-empty condition in the Sub Hopper is detected by the Magnet Lever that moves up and down as the Sub Hopper Toner Agitating Lever turns and actuates and deactuates the Sub Hopper Toner Empty Switch.

•

While the amount of toner in the Sub Hopper is more than the predetermined amount, the Magnet Lever rests on the toner, keeping the Sub Hopper Toner Empty Switch deactuated even when the Sub Hopper Toner Agitating Lever turns. As toner is consumed, the Magnet Lever lowers to eventually actuate the Sub Hopper Toner Empty Switch, at which timing the copier detects a toner-empty condition in the Sub Hopper.

Magnet Lever

Magnet

Sub Hopper Toner Agitating Lever


S4

Control Signal

PJ11A-7B

1171M021AA

Sub Hopper Toner Empty Switch (S4)

ON

L

OFF

H

M-30


99.01.14

1170SBM1306A

13-6. Main Hopper Toner Replenishing Mechanism

•

When a toner-empty condition in the Sub Hopper is detected, the Main Hopper Toner

Replenishing Motor is energized to turn the Toner Bottle, thereby supplying toner from the Main Hopper to the Sub Hopper.

•

The Toner Bottle Home Position Sensor mounted on the coupling ensures that the Toner

Supply Port in the Toner Bottle is positioned at the top whenever the bottle is stopped.

•

The Toner Bottle Cover Sensor detects whether the Toner Bottle Cover is open. If the cover is open, the copier does not authorize the initiation of a new copy cycle. If the cover is opened during a copy cycle, the copier interrupts the cycle.

Toner Bottle

Main Hopper Toner

Replenishing Motor (M6)

Toner Bottle Home

Position Sensor (PC10)

Sub Hopper


M6


PC10

Control Signal

PJ11A-4A

Control Signal

PJ11A-2B

ON

DC24V

Unblocked

L

1171M020AB

OFF

L

Blocked

H

M-31


99.01.14

1170SBM1307A

13-7. I/C Cooling Fan Motor

•

The I/C Cooling Fan Motor prevents the temperature inside the copier (around the entire

I/C) from rising inordinately.

I/C

I/C Cooling Fan

Motor (M9)


M9

Control Signal

PJ18A-10

1171M032AB

ON

DC24V

OFF

L

1170SBM1308A

13-8. Ozone Fan Motor

•

Ozone produced by the PC Drum Charge Corona is absorbed by the Ozone Filter from the air being drawn out of the copier by the Ozone Fan Motor.

Ozone Fan Motor (M8)

I/C

Ozone Filter


M8

Control Signal

PJ11A-1A

M-32

ON

DC24V

1171M023AC

OFF

L


99.01.14

1170SBM1400A

14

PAPER TAKE-UP/FEED SECTION

NOTE

•

For the details of the 2nd Cassette (500-Sheet Cassette), see the relevant option service manual.

•

This copier employs the Multi-Purpose (MP) Cassette whose capacity is about 250 sheets (about 20 sheets for special paper).

Paper Size Detecting Board (PWB-I)

Paper Take-Up Roll

1167M055AA

Trailing Edge Stop

1170SBM1401A

14-1. MP Cassette Paper Lifting Plate

•

The Paper Lifting Plate installed in the MP Cassette is spring-loaded to push the paper stack upward. When the cassette is slid into the copier, the lever located on the bottom of the cassette and used to lock down the Paper Lifting Plate is pushed and unlocked, allowing the Paper Lifting Plate to push the paper stack upward.

Paper Lifting Plate

M-33

Lever

1167M080AA


99.01.14

1170SBM1402A

14-2. MP Cassette-in-Position Detection

•

When the MP Cassette is slid into the copier, the light blocking plate located in the rear of the cassette blocks the Cassette Set Sensor and the copier determines that the MP Cassette has been slid into position.

Cassette Set Sensor (PC6)


PC6

Light Blocking Plate

Control Signal

PJ13A-5B

Unblocked

H

1167M052AB

Blocked

L

M-34


99.01.14

1170SBM1403A

14-3. MP Cassette Paper Empty Detection

•

Two sensors are used in this copier: the Paper Empty Sensor detects a paper-empty condition, while the Paper Near-Empty Sensor detects a paper near-empty condition.

Paper Near-Empty Detection:

•

A paper near-empty condition is detected as the paper is consumed and when the Near-

Empty Lever lowers to eventually block the sensor (L).

•

At this time, the MP Cassette Paper Empty LED starts blinking.

•

A paper-empty condition results when about 50 more sheets of paper are used after the near-empty condition has been detected.

Near-Empty Lever

Paper Lifting Lever

Paper Near-Empty

Sensor (PC4)

1167M071AC

Paper Empty Detection:

•

A paper-empty condition is detected as the paper is consumed and when the Empty

Lever lowers to eventually block the sensor (L).

•

At this time, the MP Cassette Paper Empty LED lights up steadily.

Paper Empty Sensor

(PC5)


PC4

PC5

Empty Lever

Control Signal

PJ14A-13A

PJ13A-2B

Unblocked

H

H

1167M073AD

Blocked

L

L

M-35


99.01.14

1170SBM1404A

14-4. MP Cassette Paper Size Detection

•

The Paper Size Detecting Board detects the length of the paper (FD).

•

A lever is connected to the Trailing Edge Stop of the cassette and, as the stop is slid to the size of the paper loaded in the cassette, the lever is moved to turn ON and OFF the size detecting switches mounted on the copier side.

•

The control panel settings are necessary for any paper size other than the following.

1

ON

OFF

OFF

ON

ON

ON

OFF

ON

Paper Size Detecting Switches (PWB-I)

2

OFF

OFF

ON

ON

ON

OFF

ON

ON

3

OFF

OFF

ON

ON

OFF

OFF

OFF

ON

4

OFF

OFF

ON

ON

OFF

ON

OFF

OFF

Paper Size

A3L, 11”×17”L

B4L, 8-1/2”×14”L

A4L

B5L, 8-1/2”×11”L

A4C/A5L

B5C

A5C

8-1/2”×11”C

Paper Size Detecting Board (PWB-I)

1 2 3 4

Trailing Edge Stop


PWB-I (1)

PWB-I (2)

PWB-I (3)

PWB-I (4)

Control Signal

PJ14A-1B

PJ14A-2B

PJ14A-3B

PJ14A-4B

M-36

ON

L

L

L

L

1167M060AC

OFF

H

H

H

H


99.01.14

1170SBM1405A

14-5. Paper Take-Up Mechanism

•

Drive from the Main Motor is transmitted to the Paper Take-Up Clutch (spring clutch) and, by energizing the Paper Take-Up Solenoid, the Paper Take-Up Roll is turned.

•

The paper separating mechanism employs a Paper Separator Pad.

Main Motor (M2)

Paper Take-Up Clutch

Paper Take-Up Roll

Paper Separator

Pad


(SL1)

1167M038AB 1167M054AB

1170SBM1406A

14-6. Manual Bypass Tray

1. Construction of the Manual Bypass Tray

•

Drive from the Main Motor is transmitted to the Manual Paper Feed Take-Up Clutch and, by energizing this clutch, the Manual Feed Paper Take-Up Roll is turned.

Main Motor (M2)

Manual Paper Feed Take-Up Clutch (CL3)

Manual Feed Paper Take-Up Roll

Manual Feed Paper Take-Up Sensor (PC8)


M2

SL1

CL3

Control Signal

PJ16A-1

PJ13A-13B

PJ4A-9A

M-37

Manual Bypass Tray

1167M067AC

ON

L

L

L

OFF

H

H

H


99.01.14

2. Manual Feed Paper Take-Up Detection

•

The Manual Feed Paper Take-Up Sensor detects a sheet of paper that is fed via the Manual Bypass Tray.

•

The size and type of the paper for manual feed are set on the control panel.

<Paper Present: Unblocked (H)>

Manual Feed Paper Take-Up Sensor (PC8)

<Paper Not Present: Blocked (L)>

1167M086AA

1167M085AA


PC8

Control Signal

PJ4A-7B

Unblocked

H

Blocked

L

1170SBM1407A

14-7. Paper Take-Up Retry Mechanism

•

To minimize the occurrence of a paper misfeed due to a slippery Paper Take-Up Roll, the

Paper Take-Up Solenoid is energized a second time if a sheet of paper fails to reach the

Synchronizing Roller Sensor within a given period of time after the solenoid has been energized first.

•

A paper take-up misfeed results if the sheet of paper does not reach the Synchronizing

Roller Sensor even after two paper take-up sequences.

M-38


99.01.14

1170SBM1500A

15

SYNCHRONIZING ROLLERS

•

The Synchronizing Rollers of this copier are located inside the Right Door. They are easily accessible for misfeed clearing by just opening the Right Door.

Synchronizing Roller

1171M029AA

1170SBM1501A

15-1. Synchronizing Roller Drive Mechanism/Control

•

The Synchronizing Rollers are turned by the drive from the Main Motor transmitted to the

Synchronizing Clutch.

•

The rollers are started when the Synchronizing Clutch is deenergized.

Main Motor (M2)

Synchronizing Clutch (CL1)

Left Synchronizing Roller

Right Synchronizing Roller


M2

CL1

Control Signal

PJ16A-1

PJ13A-2A

M-39

ON

L

L

1167M064AA

OFF

H

H


99.01.14

1170SBM1502A

15-2. Paper Dust Remover

•

The Paper Dust Remover is installed so that it makes contact with the Left Synchronizing

Roller. It is intended for preventing paper dust from sticking to the surface of the PC

Drum.

•

As the roller turns in contact with the Paper Dust Remover, triboelectric charging occurs, which attracts paper dust from the paper that passes between the two rollers and the dust is, in turn, transferred onto the Paper Dust Remover.


Paper Dust Remover

Synchronizing Roller Sensor (PC2)

1171M026AB

M-40


99.01.14

1170SBM1600A

16

IMAGE TRANSFER AND PAPER SEPARATION

Image Transfer

•

This copier employs an Image Transfer Roller to transfer the image to the paper. The

High Voltage Unit applies an image transfer current to this roller. To ensure that image transfer efficiency is stabilized, the image transfer current is automatically varied according to the paper size, paper type, and the B/W ratio of the original.

•

To prevent toner from sticking to the Image Transfer Roller, an image transfer voltage of

-975V is applied to the roller for cleaning.

Paper Separation

•

To neutralize any charge left on the paper, to which the image has been transferred, the

High Voltage Unit applies a voltage of -1200V via a ground plate to the Charge Neutralizing Plate.

PC Drum


Image transfer output

Ground Plate

Charge Neutralizing Plate

Image Transfer Roller

1167M082AA

Control Signal

PJ14A-2A

ON

L

OFF

H

M-41


99.01.14

1170SBM1700A

17

PC DRUM PAPER SEPARATOR FINGERS

•

The three PC Drum Paper Separator Fingers fitted to the I/C mechanically separate paper from the surface of the PC Drum to ensure good and positive paper separation.

PC Drum Paper Separator Fingers

PC Drum

1171M014AA

PC Drum Protective Shutter

Paper Path Center

8.5cm

8.5cm

1167M053AC

M-42


99.01.14

1170SBM1800A

18

PC DRUM CLEANING

•

This copier employs a spent toner recycling mechanism. The Cleaning Blade which is held pressed against the surface of the PC Drum scrapes residual toner off the surface.

The waste toner is conveyed by Spent Toner Feed Roller 1 and 2 to the Spent Toner

Recycling Duct and eventually back to the Developer Mixing Chamber.

Cleaning Blade

PC Drum

Spent Toner Feed Roller 1

Spent Toner Feed Roller 2

1171M015AA

Toner Conveying Rollers

Spent Toner Recycling Coil

Recycling Duct

M-43

1171M016AA


99.01.14

1170SBM1900A

19

FUSING UNIT

•

The paper, to which the developed image is yet to be fixed, is fed through heated Left and

Right Fusing Rollers. The heat and pressure applied at this time fixes the image permanently to the paper.

1 2

8

9

3

4

7

1. Paper Exit Roller

2. Fusing Misfeed Clearing Lever

3. Paper Exit Sensor (PC3)

4. Pressure Spring

5. Right Fusing Roller

6 5

1167M078AB

6. Fusing Roller Heater Lamp (H1)

7. Left Fusing Roller

8. Fusing Roller Thermostat (TS1)

9. Fusing Paper Separator Finger

M-44


99.01.14

1170SBM1901A

19-1. Drive Mechanism

•

Drive from the Main Motor is transmitted via a gear train to the Right Fusing Roller.

Right Fusing Roller

Paper Exit Roller

Main Motor (M2)

1167M057AB


M2

Control Signal

PJ16A-1

ON

L

OFF

H

1170SBM1902A

19-2. Fusing Rollers Pressure Mechanism

•

To ensure that there is a certain width of area of contact between the Left and Right Fusing Rollers, pressure springs are installed.

•

The rollers are held pressed against each other at all times and they are released only when servicing the copier or replacing parts.

•

The pressure between the two rollers is approx. 12 kg.

•

The rollers can be released by moving the Fusing Misfeed Clearing Lever in the direction of the arrow.

Fusing Misfeed Clearing Lever

Pressure Spring

M-45

1167M077AF


99.01.14

1170SBM1903A

19-3. Fusing Temperature Control

•

The Fusing Roller Heater Lamp inside the Left Fusing Roller provides the following temperature control.

- Temperature Control During Standby State -

200

185

Approx.

5 min.

Approx.

1 min.

210

200

190

180

175

Warm-Up

Completed

(200°C)

Mode 1 Mode 2 Mode 3

- Temperature Control During a Copy Cycle -

1171M031AB

Special paper

Plain paper (1-sided)

Plain paper (2-sided)

Transparencies

Approx.

5 min.

Approx.

1 min.


TH1

Mode 1

Control Signal

PJ16A-5

Mode 2 Mode 3

1171M030AB

<Temperature Control>

•

The Fusing Roller Thermistor detects the surface temperature of the Left Fusing Roller.

It provides an analog voltage input to the Master Board allowing the copier to control the fusing temperature.


H1

Control Signal

PJ16A-8

ON

L

OFF

H

Low Temp.

↔

High Temp.

Analog input

M-46


99.01.14

<Temperature Control by Mode>

•

The mode that is initiated following the completion of a warm-up cycle varies as detailed below depending on the machine condition and the Fusing Roller temperature at the restart of temperature control.

Machine Condition

Power is turned ON.

Fusing Roller Temperature

Less than 100°C 100°C or higher

Mode 2

Temperature control is interrupted during warm-up.

Temperature control is interrupted during mode 1.



Mode 1

Mode 1

Mode 2

1170SBM1904A

19-4. CPM Control

•

As a measure to prevent the temperature on the edges of the Fusing Rollers (over which no part of paper passes) from rising in a multi-copy cycle using small size paper (width of

250 mm or less), the paper feed interval is made greater.

<Control>

•

If a sheet of small size paper is taken up and fed in during mode 1, control is switched to mode 2.

•

The number of sheets of small size paper that are fed through is counted.

<Timing>

•

The counter reaches 30.

•

The plain/special paper counter reaches N specified below:

If the control is in mode 1 or mode 2 when the counter starts counting, N = 30.

If the control is in mode 3 when the counter starts counting, N = 100.

<Resetting>

•

If a period of 2 min. or more elapses, during which the counter does not count up after the counter has started counting, the counter is cleared resetting the CPM control.

M-47


99.01.14

1170SBM2000A

20

PAPER EXIT UNIT

•

The Paper Exit Roller feeds the paper, to which the developed image has been fixed, out of the copier. The Charge Neutralizing Brush touches the surface of the sheet of paper being fed out of the Fusing Unit to neutralize any static charge left on it. This effectively prevents two sheets of paper fed out of the copier from sticking to each other due to static charge.

Charge Neutralizing Brush

Paper Exit Roller

1167M061AC

M-48


99.01.14

1170SBM2100A

21

FUSING COOLING FAN MOTOR

•

The Fusing Cooling Fan Motor located in the Right Door prevents the temperature of the

Fusing Unit Cover and the area above the I/C from rising inordinately. The motor also draws the paper after it has been separated from the PC Drum onto the transport guide to ensure that it is stably and smoothly fed into the Fusing Unit.

Fusing Unit

Fusing Cooling Fan

Motor (M3)

I/C

Electrical

Component

M3

Control

Signal

PJ13A-3A

During Copy Cycle

Full speed

Pulse output

In Standby

Half speed

1171M022AC

During Warm-Up

Stop

L

M-49


99.01.14

1170SBM2200A

22

POWER UNIT COOLING FAN MOTOR

•

The Power Unit Cooling Fan Motor prevents the temperature at the Power Supply Unit and the Polygon Motor in the PH from rising inordinately.

Power Unit Cooling

Fan Motor (M4)

Electrical

Component

M4

Master Board (PWB-A)

Control

Signal

PJ6A-2

While Main Motor is Turning

Full speed

DC24V

Power Supply Unit 1 (PU1)

1171M034AA

In Standby

Half speed

DC10V

M-50

FrameMaker Ver.5.5(PC) Di250 SWITCHES ON PWBs/TECH. REP. SETTINGS

99.01.09

D 2500iD

SWITCHES ON PWBs,

TECH. REP. SETTINGS

17196

FrameMaker Ver.5.5E(PC) Di250 SWITCHES ON PWBs/TECH. REP. SETTINGS

99.01.09

CONTENTS

1. PRECAUTIONS FOR HANDLING THE PWBs ................................................ S-1

1-1. Precautions for Transportation and Storage ............................................ S-1

1-2. Precautions for Replacement and Inspection .......................................... S-1

2. CONTROL PANEL KEYS AND TOUCH PANEL ............................................. S-2

2-1. Control Panel Keys .................................................................................. S-2

2-2. Explanation of the Touch Panel ............................................................... S-3

(1) Basic Screen ................................................................................... S-3

(2) Warning Screens ............................................................................. S-4

3. FUNCTION OF SWITCHES AND OTHER PARTS ON PWBs ........................ S-5

3-1. PWB Location .......................................................................................... S-5

3-2. PWB-A (Master Board) ............................................................................ S-5

3-3. UN1 (Control Panel) ................................................................................ S-6

3-4. PWB-L (PPM Switching Board) ............................................................... S-6

3-5. UN2 (MFB Board) .................................................................................... S-7

4. USER’S CHOICE MODE ................................................................................. S-9

4-1. User’s Choice Selection Screen .............................................................. S-9

4-2. User’s Choice Function Setting Procedure .............................................. S-9

4-3. User’s Choice Function Tree ................................................................... S-10

4-4. Settings in the User’s Choice Mode ......................................................... S-11

5. TECH. REP. MODE ......................................................................................... S-16

5-1. Tech. Rep. Mode Menu Screen ............................................................... S-16

5-2. Tech. Rep. Mode Function Setting Procedure ......................................... S-16

5-3. Tech. Rep. Mode Setting Tree ................................................................. S-17

5-4. Settings in the Tech. Rep. Mode ............................................................. S-18

(1) Tech. Rep. Choice ........................................................................... S-18

(2) System Input .................................................................................... S-22

(3) Administrator # Input ....................................................................... S-23

(4) Counter ............................................................................................ S-23

(5) Function ........................................................................................... S-28

(6) I/O Check ......................................................................................... S-29

(7) Movement Check ............................................................................. S-30

(8) RD Mode (SMART) ......................................................................... S-31

(9) ROM Version ................................................................................... S-33

(10) Level History .................................................................................... S-34

6. SECURITY MODE ........................................................................................... S-35

6-1. Security Mode Menu Screen ................................................................... S-35

6-2. Security Mode Function Setting Procedure ............................................. S-35

6-3. Settings in the Security Mode .................................................................. S-36

7. ADJUST MODE ............................................................................................... S-39

7-1. Adjust Mode Menu Screen ...................................................................... S-39

7-2. Adjust Mode Function Setting Procedure ................................................ S-39

7-3. Adjust Mode Function Tree ...................................................................... S-40

7-4. Settings in the Adjust Mode ..................................................................... S-40

(1) Printer .............................................................................................. S-40

(2) IR ..................................................................................................... S-41

8. INITIAL MODE ................................................................................................. S-42 i


99.01.09

1

PRECAUTIONS FOR HANDLING THE PWBs

1-1.

Precautions for Transportation and Storage

•

Before transporting or storing the PWBs, put them in protective conductive cases or bags so that they are not subjected to high temperature and are not exposed to direct sunlight.

•

Protect the PWBs from any external force so that they are not bent or damaged.

•

Once the PWB has been removed from its conductive case or bag, never place it directly on an object that is easily charged with static electricity (such as a carpet or plastic bag).

•

Do not touch the parts and printed patterns on the PWBs with bare hands.

1-2.

Precautions for Replacement and Inspection

•

Whenever replacing the PWB, make sure that the power cord of the copier has been unplugged.

•

When the power is on, the connectors should never be plugged in or unplugged.

•

Use care not to strap the pins of an IC with a metal tool.

•

When touching the PWB, wear a wrist strap and connect its cord to a securely grounded place whenever possible. If you cannot wear a wrist strap, touch the metal part to discharge static electricity before touching the PWB.

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99.01.09

2

CONTROL PANEL KEYS AND TOUCH PANEL

✽ For more details, see the Operator’s Manual shipped with the copier.

2-1.

Control Panel Keys

1 2 3

4

5

6

11 10 9 8 7

1166O238EB

1. Touch Panel

•

Shows various screens and messages.

2. Utility Key

•

Press to show the User Mode menu.

7. Panel Reset Key

•

Clears all settings made on the control panel, setting the copier back into the initial mode.

•

Cancels currently reserved jobs.

✽ It does not clear the zoom ratios and job settings stored in memory and Interrupt mode.

3. Mode Check Key

•

Shows the Mode Check screen on which the user can check the current copying settings.

4. Access Mode Key

•

Used to enter the access number. After the access number has been entered, pressing this key will allow the user to make copies.

8. Clear Key

•

Clears the number-of-copies setting, zoom ratio, and counter count.

•

Cancels the image data read.

9. Stop Key

•

Press to stop a scanning cycle.

•

Press to stop a print cycle.

5. Interrupt Key

•

Sets the copier into, or lets it leave, the

Interrupt mode.

10. Start Key

•

Press to start the document scanning sequence.

•

Press to start a print cycle.

6. Display Contrast Knob

•

Turn to vary the brightness of the Touch

Panel.

11. 10-key Pad

•

Numeric key pad used for entering the number of copies to be made, zoom ratio, access number, and the Tech. Rep. mode settings.

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99.01.09

2-2.

Explanation of the Touch Panel

(1) Basic Screen

•

The Basic screen is the initial screen that appears when the copier panel is reset or auto reset is activated.

1

2

3

4

5

1168P169CC

1. Supplementary Function Key

•

Selects the corresponding menu screen, either Auxiliary, Density, Orig.

Copy, or

Basics.

4. Function Display

•

Shows graphic representations of the settings currently made for Orig.

Copy and Finishing.

2. Message Display

•

Shows the current copier status, operating instructions, caution/warning messages, and other data including the number of copies selected.

5. Status Display

•

Shows what is being done with the current job and other data.

3. Basic Function Keys

•

Allows the user to select the finishing, zoom ratio, and copy paper.

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99.01.09

(2) Warning Screens

•

The warning screen may be a malfunction display, error display, warning display, or a caution display.

<Malfunction Display>

•

A malfunction display is given when trouble occurs which cannot be corrected by the user.

Example: Malfunctions that can be identified with a specific code.

<Error Display>

•

An error display is given when trouble occurs which can be corrected by the user.

Example: Paper misfeed, toner empty, door open.

1171S001CB 1168P167CD

<Warning Display>

•

A warning display is given when any further copier operation will not be possible, or only a defective copy will be produced, because of erroneous or illegal panel settings or other cause.

Example: Unmatched paper size in Auto

Paper.

<Caution Display>

•

A caution display is given when, though further copier operation will be possible, it could result in a malfunction.

Example: Install new Imaging Cartridge.

1171S002CC

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1171S003CB


99.01.09

3

FUNCTION OF SWITCHES AND OTHER PARTS ON PWBs

3-1.

PWB Location

PWB-L

UN2

PWB-A

3-2.

PWB-A (Master Board)

1171S004AA

UN1

S1

Symbol Name

S1 Test Print Switch

Description

Used to run a test print cycle.

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99.01.09

3-3.

UN1 (Control Panel)

1167S018AA

1167S018AA

Symbol Name

SW37 Warm Restart Switch

Description

•

Used to enter the initial mode.

•

Used to restart the copier after a breakdown.

3-4.

PWB-L (PPM Switching Board)

Symbol Name

S1 Low-Speed Mode

Selecting Switch

Description

Used to make longer the paper-to-paper intervals as a means of preventing the problem in which sheets of paper are fed out untidily when large size paper left to stand under high humidity condition is being used.

✽ Keep this switch in the H position, as it is only for special users.

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99.01.09

3-5.

UN2 (MFB Board)

1167S027AA

Symbol

U6

Name

Forced Memory Clear

Description

Used when it is not possible to clear RAM by warm restart.

✽ Be careful about using these pins, as closing these pins clears all data including counter data.

<Clearing Procedure>

1. Turn OFF the Power Switch.

2. Remove the Upper Cover and MFB Box Cover.

3. Close U6 and, in that condition, turn ON the Power Switch.

NOTE

Use care not to close any other circuit.

4. When the initial screen appears, turn the Power Switch OFF.

5. Open U6.

NOTE

When Forced RAM Clear has been performed, make these adjustments and settings once again in this order:

1. “Marketing Area” of “Initial mode”

2. “Memory Clear” of “Initial mode”

3. Other adjustments and settings as necessary

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99.01.09

<Data/Conditions Cleared by Reset Switches/Pins>

Switches/Pins

Data/Conditions Cleared

Misfeed display

Malfunction display

(other than Fusing)

Power

Switch

OFF/ON

❍

❍ ❍

Malfunction display

(all including Fusing)

Erratic operation/ display

User’s Choice

Tech. Rep. Mode

Counter

RD Mode

—

—

—

—

—

—

—

—

Security Mode

Adjust Mode

—

—

—

—

❍ : Cleared (initialized) —: Not cleared

—

—

—

—

Side

Cover open/ close

❍

Memory

Clear

❍

Initial Mode

Total

Clear

—

❍

❍

❍

❍

❍

—

—

❍

—

—

—

—

—

—

❍

❍

—

—

Trouble

Reset

❍

—

❍

❍

—

—

—

—

—

—

❍

❍

❍

❍

❍

❍

❍

Forced

RAM

Clear

❍

❍

❍

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99.01.09

4

USER’S CHOICE MODE

•

The User’s Choice mode is used to make various settings according to the user’s needs.

4-1.

User’s Choice Selection Screen

1167S009CB

4-2.

User’s Choice Function Setting Procedure

<Setting Procedure>

1. Press the Utility key on the control panel and then touch the “User’s Choice” key.

2. Select the page number key that contains the desired function from among 1/5 through

5/5 shown at the bottom of the Touch Panel.

3. Select the function to be set and make settings as required.

4. After the settings are complete, touch the “Enter” key to validate the settings.

✽ The function selected is highlighted.

<Exiting the Mode>

•

Touch [Exit] on the screen to go back to the Basic screen.

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99.01.09

4-3.

User’s Choice Function Tree

1/5

User’s Choice

2/5

3/5

4/5

5/5

Memory Recall

Mixed Original Detection

Language Selected

Original Copy Default

Auto Paper / Auto Size

Tray Priority

Special Paper

2 • 4 in 1, Booklet

Copy Zoom

Auto Panel Reset

Energy Save Mode

Plug-In Counter,

ID Key Reset

Auto Shutt Off

LCD Back-light Off

4 in 1 Copy Order

Density Priority

Default Level (Copy)

Print Exposure

Output Priority

Intelligent Sorting

Output Tray

Small ID Original

Scanner Dry

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99.01.09

4-4.

Settings in the User’s Choice Mode

1/5

Touch Panel

Display

Memory Recall

Mixed Original

Detection

Language

Selected

Setting (The default is Highlighted ).

Select whether to enable (“ON”) or disable (“OFF”) the function that retains the image data even after the last copy paper has been fed out, allowing the user to recall the same image data.

ON OFF

Select whether to let the system select by default (“ON”) the Mixed

Original Detection mode or not (“OFF”) when power is turned ON or the Panel Reset key pressed.

ON OFF

Select the language of the Touch Panel messages.

<Metric Areas> <Inch Areas>

ENGLISH

DUTCH

GERMAN FRENCH ENGLISH

ITALIAN SPANISH JAPANESE

PORTUGUESE DANISH NORWEGIAN

SWEDISH FINISH JAPANESE

FRENCH SPANISH

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99.01.09

2/5

Touch Panel

Display

Default


Copy Select the type of Original Copy setting selected automatically when the copier is turned ON or Panel Reset key pressed. If “Duplex only” is selected for “Simplex/Duplex” of the “Tech. Rep. Choice” function, 1 1 is not displayed.

1-Sided

2-Sided

2-Sided

2-Sided

1-Sided

1-Sided

Auto Paper/

Auto Size

Tray Priority

Special Paper

1-Sided

2-Sided

2-Sided

2-Sided

Specify the default mode selected automatically when power is turned

ON or the Panel Reset key pressed.

Auto Paper Auto Size Manual

Specify the paper source selected automatically.

1st Drawer

2nd Drawer

3rd Drawer

4th Drawer

5th Drawer

LCT

✽ Manual Bypass Tray is not selectable.

Set up a drawer for special paper loading.

Normal

Recycled

Not for 2-Sided

Special

2 • 4 in 1, Booklet

Copy Zoom

Select whether to enable (“ON”) or disable (“OFF”) recalling a default zoom ratio for 2in1, 4in1, or Booklet Creation.

ON OFF

The default zoom ratios are as follows when “ON” has been selected.

< Metric Areas >

× 0.500 4in1

< Inch Areas >

× 0.500 4in1

× 0.707 2in1/Booklet

× 1.414 Separation

× 0.647 2in1/Booklet

× 1.545 Separation

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99.01.09

3/5

Touch Panel

Display


Auto Panel Reset Specify the default exposure mode selected automatically when power is turned ON or the Panel Reset key pressed.

30 seconds

3 min

1 min

5 min

2 min

No Reset

Energy Save Mode Set the time it takes the copier to enter the Energy Saver mode after a copy cycle has been completed or the last key operated. Use the 10key Pad to set the time (1 to 240 min.).

(1 to 240) (15 min)

Plug-In Counter,

ID key Reset

Select whether to reset (“ON”) the panel or not (“OFF”) automatically when the Access Mode key is pressed or the Key Counter is unplugged.

ON OFF

Auto Shut Off Select whether to turn ON or OFF the Auto Shut Off function that shuts down the copier a given period of time after a copy cycle has been completed or the last key operated. Selecting “ON” means setting the time it takes the Auto Shut Off function to be activated, that can range from 15 min. to 240 min.

No Reset (15 to 240) (60 min)

✽ The option of “No Reset” becomes available on the screen if “Yes” is selected for “Disable Sleep” of Utility - Admin. Management -

Administrator Set.

LCD Back-light Off Set the time it takes the LCD backlight to turn OFF after a copy cycle has been completed or the last key has been operated.

(1 to 240) (1 min)

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99.01.09

4/5

Touch Panel

Display

Setting (The default is Highlighted

4 in 1 Copy Order Specify the default copying order in the 4in1 mode.

).

1 2

3 4

1

2

3

4

Density Priority

Default Level

(Copy)

Specify the default exposure mode selected automatically when power is turned ON or the panel Reset key pressed.

<Density>

Auto Manual

✽ “Photo” of “Original Image Type” cannot be selected when “Auto” is selected.

<Original Image Type>

Text Photo Text/Photo

Auto: Select the default exposure level in the Auto Exposure mode.

Manual: Set the default exposure level in the Manual Exposure mode.

<Auto>

Lighter Normal Darker

<Manual>

Print Exposure

Output Priority

Lighter

✽ EXP. 1 (Lighter) to EXP. 9 (Darker)

Set the image density level for printing.

-3 -2 -1 0 1

Darker

2 3

Select the default finishing type when the copier is equipped with a

Sorter or Staple Sorter.

Staple

Non-Sort

Sort

Group

✽ Staple can be combined with either

Sort or Group.

Hole Punch

✽ Hole Punch can be combined with any one of the functions.

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99.01.09

5/5

Touch Panel

Display


Intelligent Sorting When the system is equipped with a finishing option and the ADF is being used, select whether to turn “ON” or “OFF” the function that automatically switches between Sort and Non-Sort according to the number of originals loaded in the ADF.

ON OFF

Output Tray Select the output tray for each application when the system is equipped with a Job Tray or Finisher.

<Printer>

•

Job Tray

1 2

•

Finisher

1 2

<Copier>

1 2

✽ 1: 1st tray; 2: 2nd tray

✽ When the system is equipped with a Finisher, the option of “Copier” and the tray designation keys “1” and “2” are not displayed.

Small ID Original Select whether to enable (“ON”) a copy cycle or not (“OFF”) when it is initiated with no original placed on the Original Glass or with an original of a small size that is not detectable by the system (smaller than

A5) placed on the Original Glass.

ON

The copy cycle is run using the paper loaded in the default paper source.

OFF

A warning message is given and the copier inhibits the start of this copy cycle.

Scanner Dry Set the time-of-day to run a Scanner drying cycle.

Hours

00 ~ 23

Minutes

00 ~ 59

✽ When entering a value for Hours and Minutes and if it is a one-digit number, first enter a “0.”

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99.01.09

5

TECH. REP. MODE

•

This mode is used by the Tech. Rep. to set, check, adjust, and/or program various service functions.

5-1.

Tech. Rep. Mode Menu Screen

1171S005CA

5-2.

Tech. Rep. Mode Function Setting Procedure

<Setting Procedure>

1. Set the copier into the Tech. Rep. mode by the following method:

•

With the “Meter Count” screen opened from the Utility menu screen, press the following keys in this order:

Stop Key ➡ 0 ➡ 0 ➡ Stop Key ➡ 0 ➡ 1

2. Select the particular Tech. Rep. mode function to be set.

3. Make the necessary settings according to the function selected.


<Exiting the Mode>

•

Touch [Exit] on the screen to go back to the Basic screen.

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99.01.09

5-3.

Tech. Rep. Mode Setting Tree

Tech. Rep. Mode

Tech. Rep. Choice

System Input

System Set

Printer

ADFR

Scan-through ADF

IR-Erasure Width

Paper Size Input

Change Fixed Zoom

Machine Configuration

Technical Memo

Permit Imaging Cartridge

Original Size Detecting Option

Auto Paper Configuration

FLS Paper

Simplex/Duplex

Dry Key Set

Function Limit

Special Image Quality

Edge Erase

Loop Adjustment

Image Density

ATDC Sensor Gain

VG Adjust

Original Stop Position

Registration Loop

Registration

Zoom Adjust

Administrator #

Input

Counter

Function

I/O Check

Paper

Jam

PM

Trouble

Device

Maintenance

F1: Paper Passage

F2: HV Output Setting

F7-1: Original Size Detecting

Sensor Adjustment

F8: ATDC Sensor Automatic

Adjustment

F12: Test Pattern

Scan-through ADF

Scanner

ADFR

Output Option

Printer

ADF Paper Passage

Scanner

Exp. Lamp Check

Movement Check

RD Mode

Rom Version

Level History

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99.01.09

5-4.

Settings in the Tech. Rep. Mode

(1) Tech. Rep. Choice

•

This function allows the Tech. Rep. to make the various settings and adjustments.

<Function>

1. System Set

2. Printer

3. ADFR

4. Scan-through ADF

<Setting Procedure>

1. Touch [Tech. Rep. Choice] to open a screen to Tech. Rep. Choice.

2. Touch the desired major category key.

3. Touch the desired sub-category key.

Tech. Rep. Mode Tech. Rep. Choice

<System Set>

Touch Panel

Display

Auto Paper Configuration


<Metric Areas>

Select either “Inch/Metric” or “Metric” for rounding off the original size detected.

Inch / Metric

Metric

The measurement is rounded to the nearest standard inch or metric size.

The measurement is rounded to the nearest standard metric size.

<Inch Areas>

Select either “Inch/Metric” or “Inch” for rounding off the original size detected.

Inch / Metric

Inch

The measurement is rounded to the nearest standard inch or metric size.

The measurement is rounded to the nearest standard inch size.

FLS Paper Set the size for FLS.

F: 330 mm

C: 203 mm

F: 330mm

C: 210mm

F: 330 mm

C: 216 mm

F: 330 mm

C: 220 mm

Simplex/Duplex Select whether or not to enable the setting of 1-Sided 1-Sided under Original Copy Default available from User’s Choice.

✽ If “Simplex & Duplex” is selected, 1-Sided 1-Sided becomes available as an option.

Display Simplex & Duplex

Description Does not limit the options for

Original Copy Default to

2-sided copying only.

Duplex Only

Limits the options for

Original Copy Default to 2-sided copying only.

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99.01.09

Touch Panel

Display

Dry Key Set

Function Limit

Special Image

Quality



Select whether to display the Dry key for “User Management” of Utility.

If the key is to be displayed, select whether to dry only the Scanner or both Scanner and Drum.

Scanner Scanner & Drum Disable

Select whether to limit (“ON”) the functions to be set on the control panel or not (“OFF”).

ON

Enables the functions other than Orig.

Copy and Auxiliary.

Enables all functions (no Limit).

OFF

Select whether to enable the selection of Special Image Quality for

“Density Priority” of User’s Choice (applicable on a case-by-case basis).

✽ Touching the “ ✽ ” key on the System Set menu selects or cancels this function.

✽ Key highlighted

✽ Key not highlighted

The Special Image Quality key is displayed.

The Special Image Quality key is not displayed.

<Printer>

Touch Panel

Display

Edge Erase


Set the erase width on the leading, trailing, right, and left edge of the image.

Leading

Trailing

Right/Left

0mm.........................

Smaller

4 ...................... 5mm

Greater

Loop Adjustment Set the loop length to be formed before the Synchronizing Rollers.

1st Drawer

Other Drawers

Duplex & Manual

-5mm........................

0 .................... +5mm

Smaller Greater

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99.01.09

Touch Panel

Display

Image Density

ATDC Sensor

Gain

VG Adjust



Set the image density for the printer.

✽ The value set for this function becomes the central value of “Print

Exposure” of User’s Choice.

-2..............................

0 ........................... +4

Lighter Darker

Current: Shows the current ATDC control voltage.

Set: Set the ATDC control voltage.

✽ If the “Set” value is to be changed, be sure to record the “Current” value.

✽ The ATDC Sensor Gain value can be converted to a voltage value using the following equation.

ATDC Sensor Gain = 5.1 × 2.2 × [setting value]

÷

256 (V)

123 .........................

155

T/C Greater

...................... 186

T/C Smaller

Set VG when a fog or void occurs in the image.

-2..............................

0 ........................... +2

Lighter Darker

<ADFR>

Touch Panel

Display

Original Stop

Position


Set the document stop position in each of the ADFR modes.

1-Sided Set

2-Sided Set

-7..............................

0 .......................... +7

Single Feed Set

Original Width

Scale end

Original Glass end

✽ The minimum setting value is -6 only for 2-Sided Set.

Registration Loop Set the loop length to be formed in the original before the Registration

Roller of ADFR.

-5mm........................

0 ..................... +5mm

Smaller Greater

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99.01.09


<Scan-through ADF>

Touch Panel

Display

Registration


Adjust registration in the main and sub scanning directions of the ADF.

-127 dot....................

0 ................. +127 dot

Smaller Greater

Zoom Adjust Adjust the scanning zoom ratio in the main and sub scanning directions of the ADF.

0.990 ....................

1.000

.................. 1.010

Smaller Greater

<IR-Erasure Width>

Touch Panel

Display


IR-Erasure Width Set the forced erasure width along the four edges of the paper to erase shadows which are otherwise produced by the Original Scales.

0mm ...................................................3mm

Smaller Greater

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99.01.09

(2) System Input

•

This function allows the Tech. Rep. to change the fixed zoom ratios, set the paper size, define the marketing area, configure for the Key Counter, and input the telephone number.

<Setting Procedure>

1. Touch [System Input] to open the System Input menu screen.

2. Touch the desired subfunction key.

Tech. Rep. Mode System Input

Touch Panel

Display

Operation

Paper Size Input Set the size of the paper used in each paper source.

✽ This function cannot be used for the LCC as its paper is set with its internal DIP switch.

<Procedure>

1. Touch the key of the paper source for which the paper size setting is to be changed to show the Paper Size Input screen.

2. Touch the desired paper size key.

✽ If the 10-key Pad has been selected, enter the FD and CD size of the paper from the 10-Key Pad.

3. Touch [END] to validate the paper size setting.

Change Fixed

Zoom

Change a fixed zoom ratio to a desired value in the range between

×0.250 and ×4.000.

<Procedure>

1. Touch the key of the fixed zoom ratio to be changed.

2. Press the Clear key to clear the setting and enter the new ratio from the 10-Key Pad.

3. Touch [Input] to validate the new setting.

Machine Configuration

Displays the machine configuration status.

Technical Memo Enter the serial number and other data.

Permit Imaging

Cartridge

Select whether to permit the use of an illegal Imaging Cartridge installed. The use is enabled when [Enter] is touched after “Yes” has been selected.

✽ It is not possible to disable the use of an Imaging Cartridge once permitted.

Yes No

Original Size

Detecting Option

Set whether the optional Original Size Detecting Sensor is available or not.

ON OFF

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99.01.09

(3) Administrator # Input

•

This function allows the Tech. Rep. to set the administrator number that is used to open the “Admin. Management” screen of Utility.

<Setting Procedure>

1. Touch [Administrator # Input] to open the Administrator # Input menu screen.

2. Blank out the numeric data with the Clear key and enter the desired number from the

10-Key Pad.

3. Touch [Enter] to validate the entry of the number.

Tech. Rep. Mode Administrator # Input

Touch Panel

Display

Administrator #

Input

Set the administrator number used to open the “Admin. Management” screen of Utility from the 10-Key Pad.

(1 to 8 digits: 0 to 99999999)

Operation

(4) Counter

•

This function maintains the counts of the various counters, thus aiding the Tech. Rep. in performing service jobs.

<Setting Procedure>

1. Touch [Counter] to open the Counter menu screen.

2. Touch [Check] and then the desired counter to open the detailed counter screen.

3. To clear a count, touch [Counter Reset], the key of the counter to be cleared, and

[END].

✽ Two or more counters can be selected.

Tech. Rep. Mode Counter

Touch Panel

Display

Paper

Operation

Shows the number of sheets of paper used by the size and type. Each counter may be reset to 0 independently of the others:

<Paper Counter 1/2> <Paper Counter 2/2>

Display Description Description

A3

B4

A3L

B4L

Display

FLS.

Normal

FLS.

Normal

Recycled

Special

Not for 2-Sided

Recycled

Special

Not for 2-Sided

A4

B5

A5

B6

A6

11 × 17

11 × 14

Letter

Legal

5-1/2 × 8-1/2

A4L/C

B5L/C

A5L/C

B6L

A6L

11” × 17”L

11” × 14”

Letter L/C

Legal L/C

5-1/2” × 8-1/2” L/C

<Clearing a Count>

Touch the item key whose count is to be cleared and press the Clear key. If a count is accidentally cleared, pressing the Interrupt key will undo the clear operation.

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99.01.09

Touch Panel

Display

Jam


Operation

Shows the number of misfeeds that have occurred in different parts of the system, together with rates of occurrence (MCBJ, MDBJ). Each counter may be reset to zero independently of the others:

<Jam Counter 1/5>

Display

MCBJ System

MCBJ Machine Only

1st Drawer

2nd Drawer

3rd Drawer

4th Drawer

5th Drawer

Description

Average no. of copies made for each paper misfeed:

MCBJ Total Counter

÷

Jam Counter (including misfeeds in Finisher)

Average no. of copies made for each paper misfeed:

MCBJ Total Counter

÷

Jam Counter (excluding misfeeds in Finisher)

No. of misfeeds that occurred at the 1st Drawer of the copier

No. of misfeeds that occurred at the 2nd Drawer of the copier

No. of misfeeds that occurred at the 3rd Drawer of the copier

No. of misfeeds that occurred at the 4th Drawer of the copier

No. of misfeeds that occurred at the 5th Drawer of the copier

Display

Manual Feed

Vertical Transport

Separator

Fusing

Duplex Entrance

Duplex Feed

LCC Feed

<Jam Counter 2/5>

Description

No. of misfeeds that occurred at the Manual Bypass Tray

No. of misfeeds that occurred at the paper take-up/transport section of the copier

No. of misfeeds that occurred at the paper separator section of the copier

No. of misfeeds that occurred at the Fusing Unit of the copier

No. of misfeeds that occurred at the turnover/storage section of the copier

No. of misfeeds that occurred at the paper take-up section of the

Duplex


LCC

<Jam Counter 3/5>

Display

LCC Transport

Shift/2Bin Tray Transport

Shift/2Bin Tray Exit

Finisher Horizontal

Transport

Finisher Transport

Finisher Exit

Finisher Staple

✽ 2Bin Tray = Job Tray

Description

No. of misfeeds that occurred in the LCC transport section

No. of misfeeds that occurred in the Shift/Job Tray transport section

No. of misfeeds that occurred in the Shift/Job Tray exit section

No. of misfeeds that occurred in the Finisher horizontal transport section

No. of misfeeds that occurred in the Finisher transport section

No. of misfeeds that occurred in the Finisher exit section

No. of Finisher staple misfeeds that occurred

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99.01.09

Touch Panel

Display

Jam


Display

Finisher Set Transport

MDBJ

ADF (Scan-through

ADF) Feed

ADF (Scan-through

ADF) Transport

ADFR Reverse

SADF

Operation

<Jam Counter 4/5>

Description

No. of misfeeds that occurred in the Finisher Tray

Average no. of document transport sequences for each document misfeed:

ADFR Document Passage Counter

÷

ADFR Jam Counter


ADF (Scan-through ADF)

No. of misfeeds that occurred at the document transport section of the ADF (Scan-through ADF)

No. of misfeeds that occurred at the document turnover and exit sections of the ADFR

No. of misfeeds that occurred at the SADF

PM

Printer

Engine

Display

<Jam Counter 5/5>

Description

No. of misfeeds that occurred due to illegal designation of FCU2

No. of misfeeds that occurred due to communication error with engine (VD fault)

<Clearing a Count>


Shows the frequency of use of each of the PM parts. Each counter may be reset to 0 independently of the others:

<PM Counter 1/3>

Display

I/C Life

Fusing Unit

1st Drawer

2nd Drawer

3rd Drawer

4th Drawer

5th Drawer

Description

No. of revolutions of I/C

No. of times a sheet of paper is fed out

No. of sheets of paper fed from the 1st Drawer

No. of sheets of paper fed from the 2nd Drawer

No. of sheets of paper fed from the 3rd Drawer

No. of sheets of paper fed from the 4th Drawer

No. of sheets of paper fed from the 5th Drawer

Display

LCC Parts 1

LCC Parts 2

Other PM Parts 1

Other PM Parts 2

Other PM Parts 3

1-Sided

2-Sided

<PM Counter 2/3>

Description

No. of sheets of paper fed from the LCC (for 200k)

No. of sheets of paper fed from the LCC (for 300k)

No. of print cycles run (for 100k)

No. of print cycles run (for 150k)

No. of print cycles run (for 60k/120k)

No. of times a 1-sided original is fed through

No. of times a 2-sided original is fed through

S-25


99.01.09

PM

Touch Panel

Display

Trouble


Operation

Display

SADF

IR 1

IR 2

2 Bin Tray

Toner Pages

<PM Counter 3/3>

Description

No. of single feeds

No. of scan motions (for 60k)

No. of scan motions (120k)

No. of cycles of feeding paper out into Job Tray

No. of pages equivalent to the no. of black dots on A4 original with B/W 5%

✽ 2Bin Tray = Job Tray

<Clearing a Count>


✽ I/C Life cannot be cleared.

Shows the number of malfunctions that have occurred in different parts of the system. Each counter may be reset to 0 independently of the others:

<Trouble Counter 1/5>

Malfunction

Code

C0000

C0010

C0045

C004C

Location

Main Motor

I/C Motor

Cooling Fan

Ventilation Fan

Malfunction

Code

C004E

C0070

C0500

C0510

Location

Cooling Fan (Power Supply)

Toner Bottle Motor

Fusing Warming-up

Fuser Low Temperature


Malfunction

Code

C0520

C0650

C0651

C0990

Location

Fuser High Temperature

Home Sensor

Left Sensor

LCC Transport Motor

Malfunction

Code

C0991

C0995

C0999

C099D

Location

LCC Lift 1 Limit

LCC Lift Motor

LCC Lift 2 Limit

LCC Communication


Malfunction

Code

C0B00

C0B0F

C0B30

C0B38

Location

Transport Drive Motor

Horiz. Trans. Route Switch

Paper Aligning Bar Unit

Paper Standard Board Unit

Malfunction

Code

C0B4D

C0B4E

C0B50

C0B80

Location

Assist Tray Unit

Transaction Tray Unit

Staple Unit

Shift Tray Shift


Malfunction

Code

C0BA0

C0F32

C0F33

C1038

Location

Elevate Motor

ATDC Sensor

ATDC Adjust

Engine Connection

Malfunction

Code

C1300

C1330

C133A

Location

Polygon Motor

Communication Error (VSYNC)

Communication Error (G/A)

S-26


99.01.09

Touch Panel

Display

Trouble

Device

Maintenance


Operation


Malfunction

Code

C133B

C13C0

C13D0

Location

Communication Error (Option)

I/C Initial Error

EEPROM

Malfunction

Code

C13F0

C18XX

Location

HSYNC (SOS)

Printer Controller Error

<Clearing a Count>


Shows the numbers of prints for different applications. It also allows the Tech. Rep. to clear each counter.

Display

Copier

Printer

Report Print

Fax Print

Fax Transmission

Description

No. of prints made by copier

No. of prints made by printer

No. of report prints made

No. of fax prints made

No. of prints made for fax transmission

<Clearing a Count>

Select the counter to be cleared with the item key and press the Clear key. If the count is accidentally cleared, pressing the Interrupt key will undo the clear operation.

•

This function allows the Tech. Rep. to set the number of copies to be made before the Maintenance Call reminder is given. (1k ~

9999k)

•

It shows the current count value and the above setting. Each counter may be reset to 0 independently of the others:

•

When the count reaches the preset value, the icon “ ” appears in the Status Display.

✽ When “Call Indicated” is selected for “Maintenance Call” available from Tech. Rep. Choice.

Display

Maintenance (Set)

Maintenance (Count)

Description

The Maintenance Call reminder is given when the count reaches the preset value.

Counts one for each copy made.

<Setting a Count>

1. Touch [Maintenance (Set)] and then press the Clear key to clear the count. If the count is accidentally cleared, pressing the interrupt key will undo the clear operation.

2. Enter the desired value from the 10-Key Pad.

<Clearing a Count>

Touch [Maintenance (Count)] and then press the Clear key to clear the count. If the count is accidentally cleared, pressing the interrupt key will undo the clear operation.

S-27


99.01.09

(5) Function

•

This function allows the Tech. Rep. to run the various function tests and make adjustments.

<Setting Procedure>

1. Touch [Function] to open the Function menu screen.

2. Select the particular function to be run.

F1

F2

F8

Touch Panel

F7-1

Display

Tech. Rep. Mode Function

Operation

<Paper Passage>

A paper passage test is carried out after the copier has completed warming up.

<Procedure>

1. Select the paper source key. (Touch [Duplex] to check for paper passage from the Duplex Unit.)

✽ If the paper source is not loaded with paper, an Add Paper mark appears at that source.

2. Press the Start key to start the test cycle. The test runs until the paper source runs out of paper.

3. If the Stop key is pressed, the copier feeds the current sheet of paper out before halting. (Another press of the Start key will resume the test cycle.)

<HV Output Setting>

Set the output of each HV.

✽ This function is only for factory setting and should never be used in the field.

<Original Size Detecting Sensor Adjustment>

Automatically adjusts the Original Size Detecting Sensors.

<Procedure>

1. Stack five sheets of A3 or 11” × 17” paper on the Original Glass and lower the Original Cover.

2. Press the Start key to let the system start the adjustment sequence.

✽ The system automatically stops as soon as the adjustment sequence is completed. It can nonetheless be halted in midsequence with the Stop key, which, however, results in incorrect size detection as the adjustment sequence is incomplete.

<ATDC Sensor Automatic Adjustment>

Automatically makes the ATDC Sensor adjustment.

<Procedure>

Press the Start key to let the system start the adjustment sequence.

✽ The voltage automatically adjusted by this function is displayed for

ATDC Sensor Gain of the Level History data.

S-28


99.01.09

F12

Touch Panel

Display

Tech. Rep. Mode Function

Operation

<Test Pattern>

Outputs a test pattern.

✽ If 2-sided is specified, the system outputs a test pattern in the 2sided mode.

<Procedure>

1. Touch the desired paper source key. (Touch [Duplex] for test pattern output on paper fed from the Duplex Unit.)

✽ If the paper source is not loaded with paper, an Add Paper mark appears at that source.

2. Press the Start key to start the output sequence. (It continues until the paper source runs out of paper.)

3. Press the Stop key to halt the sequence.

(6) I/O Check

•

This function displays the details of inputs to each sensor.

<Setting Procedure>

1. Touch [I/O Check] to open the I/O Check menu screen.

2. Touch the desired subfunction key.

Tech. Rep. Mode I/O Check

Touch Panel

Display

Scan-through ADF

IR

ADFR

Output Option

Printer

Operation

NOTE

•

For details, see TROUBLESHOOTING.

S-29


99.01.09

(7) Movement Check

•

This function runs a specified mechanism to check for operation.

<Setting Procedure>

1. Touch [Movement Check] to open the Movement Check menu screen.

2. Touch the desired subfunction.

Tech. Rep. Mode Movement Check

Touch Panel

Display

ADF Paper Passage

Feeds paper through the ADF in the specified mode to check for correct operation.

Operation

1-sided No Detect 1-sided Mixed Orig

SADF

2-sided

Scanner

<Procedure>

1. Select ADF Paper Passage.

2. Touch the desired mode key.

3. Load originals in the ADF.

4. Press the Start key to let the ADF start feeding originals.

✽ Pressing of the Start key temporarily stops the ADF. (Another press will let the ADF resume the sequence.)

✽ The sequence is completed when there is no more originals in the

ADF; however, it is possible to halt the sequence in mid-operation by pressing the Stop key.

•

Drives the CCD.

•

Turns ON the Exposure Lamp.

•

Moves the Scanner according to the set value.

Exp. Lamp Check Checks for the intensity of the Exposure Lamp light.

S-30


99.01.09

(8) RD Mode (SMART)

✽ “SMART” is displayed for the inch areas.

Tech. Rep. Mode RD Mode

Touch Panel

Display

RD Mode

ID Code

Maintenance

DT Setting

CT-ID

(Password)

DT-ID

Setting

For making the initial settings of the copier for the Data Terminal.

Enter a 7-digit ID code (0000001 to 9999999) from the 10-Key Pad to enable making the following settings. When the ID code is entered and transmitted after the initial settings have been made, it executes the transmission of MAINT. START to the Center.

✽ 0000000 is invalid.

Used to make the initial settings and various transmissions.

Enter the following data.

Using the 10-Key Pad, enter the 4-digit ID number (0001 to 9999) of the Center which has been programmed in the Center personal computer.


Using the 10-Key Pad, enter the 6-digit ID number (000001 to

999999) of the Data Terminal.


TEL No.

Initial Transmission

Enter the 19-or-less-digit phone number of the modem connected to the Center personal computer from the 10-Key Pad.

✽ In addition to the 10-Key Pad and Clear key, use the following keys to enter the phone number.

Interrupt key: For a pause (3 sec. or more), “-”

Pause key: For a pause (3 sec. or more), “-”

P key: For a “pulse” dialing, “P”

T key: For a “tone” dialing, “T”

W key: For a wait code (waiting for a signal from the other party),

“W”

✽ key: For an ISDN subaddress, “ ✽ ”

# key: For switching from the extension line to outside line, or vice versa, “#”

Used to perform the initial transmission from the copier to the Center to check for correct communication when the Data Terminal has been set up.

Counter Clear Used to clear the count of the spare counter set by the Center.

<Procedure>

1. Touch [Counter Clear] to open the Counter Clear screen.

2. Touch the number assigned to the counter to be cleared.

Call Completion

Used by the Tech. Rep. to notify the Center that his/her service job for the copier has been completed.

S-31


99.01.09

Tech. Rep. Mode RD Mode

Touch Panel

Display

RD Mode

RAM Clear


Reinitializes the Data Terminal.

YES NO

Common DT

Dial Mode

Set the following functions.

Select the type of telephone line of the user.

Tone Pulse

Auto Receive Choose “Yes” or “No” for the auto reception function.

Result Code

YES NO

✽ Select “Yes” if the line is dedicated to the Data Terminal.

Enter the result code for connection to the modem when the line is connected. (0 to 999)

S-32


99.01.09

(9) ROM Version

Touch Panel

Display

ROM Version

Tech. Rep. Mode ROM Version

Operation

Displays the current ROM version information.

✽ No version information is displayed for a machine that is not connected to the system.

<Procedure>

1. Touch [ROM Version] to open the ROM Version screen.

2. The screen shows the ROM version information of various machines configured in the system.

MSC

Message

Display

—

IC4

Printer

ADFR

LCC

Finisher

IIF

IC1

IC3

IC7

IC3

—

MFB Board

MFB Board

Master Board

ADFR Board

LCC Board

Finisher/Job Tray Board

IIF2 Board

Description

S-33


99.01.09

(10) Level History

•

This function is used to show the various level histories which are changed according to the operating conditions of the copier and user requirements.

Tech. Rep. Mode Level History

Touch Panel

Display

Level History

Setting

<ATDC Set>

Shows the voltage set by ATDC Sensor Automatic Adjustment (F8).

✽ The Level History data is updated when the ATDC Sensor Automatic Adjustment (F8) is completed.

Variable Range

123 to 186 (steps)

Increments

1 Step

<ATDC Current>

Shows the current, approximate ATDC Sensor T/C setting in percentage.

Variable Range

3.0 to 19.0 (%)

Increments

0.5%

<Vg Current>

Displays the grid voltage as corrected through image stabilization and related functions.

Variable Range

-514 to -728 (V)

Increments

-

<Vb Current>

Displays the developing bias voltage as corrected through image stabilization and related function.

Variable Range

-409 to -623 (V)

Increments

-

S-34


99.01.09

6

SECURITY MODE

•

This function allows the Tech. Rep. to make various settings.

6-1.

Security Mode Menu Screen

1167S011CA

6-2.

Security Mode Function Setting Procedure

<Setting Procedure>

1. Set the copier into the Tech. Rep. mode by one of the following methods:

A. With the copier turned ON, press the Tech. Rep. Setting Switch.

B. With the Meter Count screen opened from Utility, press the following keys in this order:


2. Enter the Security mode by pressing the following keys in this order:

Stop Key ➡ 9

3. Select the particular Security mode to be set.

4. Make the necessary settings by following the instructions given sequentially on the screen.

✽ The Function selected is highlighted.

<Exiting the Mode>

Perform any one of the following steps to go back to the Basic screen.

•

Press the Panel Reset key and Touch [Exit] on the Tech. Rep. Mode screen.

•

Touch [END] on the Security Mode screen. Then touch [Exit] on the Tech. Rep. Mode screen.

S-35


99.01.09

6-3.

Settings in the Security Mode

Tech. Rep. Mode Security Mode

Touch Panel

Display

Total Counter

Size Counter

Copy Kit


Select the conditions by which the Total Counter count is increased.

Mode 1

Mode 2

Mode 3

1 count per 1 copy cycle (normal mode)

Multiple count-up according to paper size and

1/2-sided copying

Multiple count-up according to paper size and

1/2-sided copying

✽ See the Count-up Table for details.

Select the size of the paper to be counted by the Size Counter.

No Count

A3

11×17

A3 / B4

11×17

Legal

A3 /11×17

B4 /11×14

FLS/Legal

A6


•

Allows for setting the desired threshold before the Maintenance Call reminder is given.

•

Displays both the current value and the above setting value. Each counter can also be reset independently of the other.

•

When the current value (Current) becomes the setting value (Set), the icon “ ” appears in the Status Display if “Mode 2” is selected for “Copy Kit Counter” and the Maintenance Call reminder (M4) is displayed if “Mode 3” is selected for “Copy Kit Counter.”

✽ Whether the initiation of a new copy cycle is inhibited or not when the current value exceeds the setting value depends on the setting made with Copy Kit Counter.

Set

Display

Current

Description

Gives a Maintenance Call when Current value reaches Set value.

Counts up for each copy made.

<Counter Setting Procedure>

1. Touch [Set] and press the Clear key to clear the current setting. If the setting is accidentally cleared, pressing of the Interrupt key will undo the clear operation.

2. Enter the desired value from the 10-Key Pad.

<Clearing the Count>

Touch [Current] and press the Clear key to clear the count. If the count is accidentally cleared, pressing of the Interrupt key will undo the clear operation.

S-36


99.01.09


Touch Panel

Display


Copy Kit Counter Select whether to set the count or not for the Copy Kit Counter and select whether to inhibit the initiation of a new copy cycle or not when the Current value reaches Set value.

Mode 1

Mode 2

Mode 3

No counting

Counted and permits copying even when the

Set value is reached.

Counted and inhibits copying when the Set value is reached.

Plug-In Counter Select the condition by which the Key Counter count is increased.

Copies Made Copy Cycles

Key Counter


Set whether a Key Counter is plugged in (“ON”) or not (“OFF”).

ON OFF

Vender Mode Select the medium to be used when the Key Counter or Vender is used.

✽ This function is not valid if “OFF” is selected for “Key Counter.”

OFF Coin Card

S-37


99.01.09


Size

Total

Copying

<Count-up Table>

1-Sided

Size other than those set

Set size

2-Sided

Size other than those set

Set size

Mode Mode Mode Mode

1 2 3 1 2 3 1 2 3 1 2 3

Total (mechanical, electronic)

Size (electronic)

2-Sided Total (electronic)

2-Sided Size (electronic)

Total by account

Size by account

Key

(mechanical)

Counting copies

Counting copy cycles

1

0

0

0

1

0

1

1

1

1

1

1

1

1

2

1

0

0

2

1

2

2

2

2

2

2

2

2

1

2

0

0

2

0

2

2

0: No count 1: 1 count 2: 2 counts 3: 3 counts 4: 4 counts

2

2 4 4

2 2 0

1 1 2 1 1 4

1

2

2

1

2

1

4

2

4

4

4

4

4

4

4

S-38


99.01.09

7

ADJUST MODE

•

Adjust mode is for adjustments to be made before shipment at the factory. As a rule, use this mode only when MFB Board UN2, or EEPROM (IC3A) on Master Board PWB-A has been replaced with a new one.

7-1.

Adjust Mode Menu Screen

1167S012CA

7-2.

Adjust Mode Function Setting Procedure

<Setting Procedure>

1. Set the copier into the Tech. Rep. mode by the following method:

•

With the Meter Count screen opened from Utility, press the following keys in this order.


2. Enter the Adjust mode by pressing the following keys in this order:

Stop Key ➡ Start Key

3. Select the particular Adjust mode function to be set.



<Exiting the Mode>

Perform any one of the following steps to go back to the Basic screen.

•

Press the Panel Reset key and Touch [Exit] on the Tech. Rep. Mode screen.

•

Touch [END] on the Adjust mode screen. Then touch [Exit] on the Tech. Rep. Mode screen.

S-39


99.01.09

7-3.

Adjust Mode Function Tree

Printer

Adjust

IR

Registration (CD)

Registration (FD)

Registration

Zoom Adjust

7-4.

Settings in the Adjust Mode

(1) Printer

•

This function is used to enter the adjustment values as they relate to the printer.

<Setting Procedure>

1. Touch [Printer] to open the Printer screen.

2. Select the desired subfunction.

Tech. Rep. Mode Adjust

Touch Panel

Display


Registration (CD) Adjust registration of the printer in the main scanning direction.

1st Drawer

2nd Drawer

3rd Drawer

4th Drawer

5th Drawer

Duplex

-4.0mm......................

Advanced timing

0 ..................... +4.0mm

Retarded timing

✽ Adjust “Duplex” after adjustments have been completed for all drawers.

Registration (FD) Adjust registration of the printer in the sub-scanning direction.

-26..........................................

0 .........................................+26

Advanced timing Retarded timing

S-40


99.01.09

(2) IR

•

This function is used to enter the adjustment values as they relate to the IR.

<Setting Procedure>

1. Touch [IR] to open the IR screen.

2. Select the desired subfunction.

Tech. Rep. Mode Adjust

Touch Panel

Display

Registration


Adjust registration of the Scanner in the main and sub-scanning directions.

-127 dot..................................

0 .................................+127 dot

Smaller Greater

Zoom Adjust Adjust the scanning zoom ratio of the Scanner in the main and subscanning directions.

0.990..................................

1.000

..................................1.010

Smaller Greater

S-41


99.01.09

8

INITIAL MODE

•

Initial mode is used to initialize the various service functions.

8-1.

Initial Mode Menu Screen

1167S013CB

8-2.

Initial Mode Function Setting Procedure

<Setting Procedure>

1. Enter the Initial mode by pressing the following keys in this order:

Warm Restart

Switch ON

➡

Enter “3” from the 10-Key Pad when “.” appears at the center on the left side of the screen while the start-up screen is being displayed.

2. Select the particular Initial mode function to be set.



<Exiting the Mode>

•

Touch [Exit] on the Initial mode screen to go back to the Basic screen.

S-42


99.01.09

8-3.

Settings in the Initial Mode

Tech. Rep. Mode Initial

Touch Panel

Display

Memory Clear


Clears all data except the electronic counters, Adjust, Copy Trackrelated, and DT-related settings.

Yes NO

Touch Panel Adj.

Corrects deviation in the sensitive area of the Touch Panel.

<Procedure>

Sequentially touch the four points marked with + on the screen as instructed by the arrow.

Total Clear Clears all of the electronic counters and Copy Track-related data.

Yes NO

Marketing Area Selects the settings for the fixed zoom ratios, paper sizes, and others according to the marketing area.

MJ MC MH Others

Image Data Clear Clears the image data stored in file memory of the MFB Board.

Yes NO

FAX Set Clear

Date Time Set

Trouble Reset

Clears the fax-related settings.

✽ Two or more items can be selected.

Own Setting

The Address

Transmission

Manage

Soft Switch

Yes NO

Sets the time-of-day and date.

Resets all malfunctions including the Fusing ones (C05XX).

✽ Malfunctions other than Fusing ones can be reset by turning OFF and ON the Power Switch and opening and closing the Side Cover.

S-43

FrameMaker Ver.5.5E(PC) Di250 DIS/REASSEMBLY, ADJUSTMENT

99.01.07

D 2500iD

DIS/REASSEMBLY,

ADJUSTMENT

18605


99.01.07

CONTENTS

1. SERVICE INSTRUCTIONS ............................................................................. D-1

1-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS .................... D-1

1-2. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT ............... D-1

1-3. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs ............. D-2

1-4. HANDLING OF THE IMAGING CARTRIDGE ......................................... D-2

1-5. PARTS WHICH MUST NOT BE TOUCHED ........................................... D-3

(1) Red painted Screws ........................................................................ D-3

(2) Variable Resistors on Board ............................................................ D-3

(3) Other Screws ................................................................................... D-3

2. DISASSEMBLY/REASSEMBLY ...................................................................... D-4

2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND

REMOVAL PROCEDURES ..................................................................... D-4

2-2. REMOVAL OF CIRCUIT BOARDS AND OTHER ELECTRICAL

COMPOMENTS ....................................................................................... D-7

2-3. PAPER TAKE-UP/TRANSPORT SECTION ............................................ D-10

(1) Replacement of the Paper Take-Up Roll ......................................... D-10

(2) Replacement of the Paper Dust Remover ....................................... D-10

(3) Cleaning of the Paper Dust Remover .............................................. D-11

(4) Cleaning of the Side Cover .............................................................. D-11

2-4. OPTICAL SECTION ................................................................................ D-12

(1) Removal of the IR Unit .................................................................... D-12

(2) Removal of the PH Unit ................................................................... D-13

(3) Removal of the CCD Unit ................................................................ D-15

(4) Cleaning of the Scanner Rails/Bushings ......................................... D-15

(5) Cleaning of the Mirrors .................................................................... D-16

(6) Cleaning of the Lens ........................................................................ D-16

(7) Cleaning of the Original Glass ......................................................... D-16

(8) Removal of the Scanner .................................................................. D-16

(9) Removal of the Scanner Drive Cables ............................................ D-18

(10) Winding of the Scanner Drive Cables .............................................. D-19

2-5. IMAGE TRANSFER SECTION ................................................................ D-23

(1) Removal of the Image Transfer Roller ............................................. D-23

(2) Cleaning of the Pre-Image Transfer Guide Plate ............................ D-23

2-6. DEVELOPING SECTION ........................................................................ D-25

(1) Removal of the Imaging Cartridge ................................................... D-25

2-7. FUSING SECTION .................................................................................. D-26

(1) Removal of the Fusing Unit ............................................................. D-26

(2) Removal of the Fusing Roller Heater Lamp, Fusing Right Roller,

Fusing Left Roller, Fusing Roller Thermistor, Fusing Roller

Thermostat, and Fusing Roller Heater Lamp Fuse ......................... D-26

3. ADJUSTMENT ................................................................................................. D-29

3-1. ADJUSTMENT JIGS AND TOOLS USED ............................................... D-29

3-2. ADJUSTMENT REQUIREMENT LIST .................................................... D-29

3-3. ADJUSTMENT OF BELT TENSION ........................................................ D-30

3-4. TEST PRINT ............................................................................................ D-31 i


99.01.07

3-5. ELECTRICAL/IMAGE ADJUSTMENT ..................................................... D-32

(1) Touch Panel Adj. ............................................................................. D-32

(2) Original Size Detecting Sensor Adjustment (F7-1) .......................... D-33

(3) Loop Adjustment .............................................................................. D-34

(4) Edge Erase ...................................................................................... D-35

(5) Registration (CD) (Printer) ............................................................... D-38

(6) Registration (FD) (Printer) ............................................................... D-40

(7) Registration (IR) .............................................................................. D-42

(8) Zoom Adjust (IR) ............................................................................. D-46

(9) IR-Erasure Width ............................................................................. D-50

3-6. OTHER ADJUSTMENTS ......................................................................... D-51

4. MISCELLANEOUS .......................................................................................... D-53

4-1. INSTALLATION OF THE KEY COUNTER SOCKET (OPTION) ............. D-53

4-2. REMOUNTING THE EEPROM (IC3A) .................................................... D-54 ii


99.01.07

1

SERVICE INSTRUCTIONS

1-1.

IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS

125V 5A

125V 3.15A

Power Supply Unit 2

PU2 125V 5A

Master Board

PWB-A 125V 3A (F1)

125V 3A (F2)

250V 1A (F3)

250V 1A (F4)

Power Supply Unit 1

PU1 125V 10A (F1)

125V 15A (F2)

250V 3.15A (F3)

250V 3.15A (F4)

Fusing Roller

Heater Lamp Fuse

TF1 125V 15A

Fusing Roller

Thermostat

TS1 250V 10A

1171D016AC

1-2.

PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT

•

The laser used in this copier is a semiconductor laser having the following specifications.

Max. power: 5mW

Output wavelength: 770~80nm

•

When laser protective goggles are to be used, select ones with a lens conforming to the above specifications.

•

When a disassembly job needs to be performed in the laser beam path, such as when working around the printerhead and PC Drum, be sure first to turn the copier OFF.

•

If the job requires that the copier be left ON, take off your watch and ring and wear laser protective goggles.

•

A highly reflective tool can be dangerous if it is brought into the laser beam path. Use utmost care when handling tools on the user’s premises.

•

The printerhead is not maintainable in the field. It is to be replaced as an assembly including the control board. Never, therefore, attempt to remove the laser diode or adjust trimmers on the control board.

D-1


99.01.07

1-3.

INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs

The following precautions must be observed when handling P.W. Boards with MOS

(Metal Oxide Semiconductor) ICs.

During Transportation/Storage:

•

During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from their protective conductive bags.

•

Do not store or place P.W. Boards in a location exposed to direct sunlight.

•

When it becomes absolutely necessary to remove a Board from its conductive bag or case, always place it on its conductive mat in an area as free as possible from static electricity.

•

Do not touch the pins of the ICs with your bare hands.

During Replacement:

•

Before unplugging connectors from the P.W. Boards, make sure that the power cord has been unplugged from the outlet.

•

When removing a Board from its conductive bag or conductive case, do not touch the pins of the ICs or the printed pattern. Place it in position by holding only the edges of the

Board.

•

Before plugging connectors into the Board, make sure that the power cord has been unplugged from the power outlet.

During Inspection:

•

Avoid checking the IC directly with a multimeter; use connectors on the Board.

•

Never create a closed circuit across IC pins with a metal tool.

•

When it is absolutely necessary to touch the ICs and other electrical components on the

PW Board, be sure to ground your body.

1-4.

HANDLING OF THE IMAGING CARTRIDGE

During Transportation/Storage:

•

Use the specified carton whenever moving or storing the Imaging Cartridge.

•

The storage temperature is in the range between –20°C and +40°C.

•

In summer, avoid leaving the Imaging Cartridge in a car for a long time.

Handling:

•

Ensure that the correct Imaging Cartridge is used.

•

Store the Imaging Cartridge in a site that is not exposed to direct sunlight.

Precautionary Information on the PC Drum Inside the Imaging Cartridge:

•

The PC Drum exhibits greatest light fatigue after being exposed to strong light over an extended period of time. Never, therefore, expose it to direct sunlight.

•

Use care not to contaminate the surface of the PC Drum with oil-base solvent, fingerprints, and other foreign matter.

•

Do not scratch the surface of the PC Drum.

•

Do not apply chemicals to the surface of the PC Drum.

•

Do not attempt to wipe clean the surface of the PC Drum.

D-2


99.01.07

1-5.

PARTS WHICH MUST NOT BE TOUCHED

(1) Red painted Screws

Purpose of Application of Red Paint

Red painted screws show that the assembly or unit secured can only be adjusted or set at the factory and should not be readjusted, set, or removed in the field.

Note that when two or more screws are used on the part in questions, only one representative screw may be marked with red paint.

(2) Variable Resistors on Board

Do not turn the variable resistors on boards for which no adjusting instructions are given in

“ADJUSTMENT.”

(3) Other Screws

Although not marked with red paint, the following screws must not be loosened or readjusted.

8 screws on the PH Unit Cover

1167D002AB

D-3


99.01.07

2

DISASSEMBLY/REASSEMBLY

2-1.

DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION

AND REMOVAL PROCEDURES

2

3

4

5

1

15

6

7

8

9

14

13

12

11

10

1171D017AA

16

17

18

33

32

31

30

29

28

27

26

D-4

21

25 24

23

22

1171D019AB

19

20


99.01.07

No.

2

Part Name

Rear Holding

Bracket

Removal Procedure

1 ADF Glass Assy.

Remove No. 2, 4.

→

Remove two holding brackets.

→

Remove two screw caps.

→

Remove two screws that secure the ADF Glass Assy.

Remove No. 17, 18.

→


→

Remove two screws that secure the Rear Holding Bracket.

3

4

Original Glass

Front Holding

Bracket

Remove No. 4.

→

Remove two holding brackets.


→

Remove two screws that secure the Front Holding Bracket.

5 Control Panel Remove No. 8.

→

Remove No. 6.

→

Remove No. 4.

→

Remove No. 12.

→

Remove five screws that secure the control panel and unplug one connector.

6 Front Upper Cover Remove No. 8.

→

Remove No. 12.

→

Remove six screws that secure the Front Upper Cover.

7 Exit Lower Cover Remove No. 32.

→

Remove No. 24.

→

Unhook the two tabs of the Exit Lower Cover and remove the Exit Lower Cover.

8

9

Front Cover

LED Cover

Slide out No. 10.

→

Open No. 25.

→

Remove three screws that secure the Front Cover.

Slide out No. 10.

→

Remove one screw that secure the LED

Cover.

10

11

MP Cassette

500-Sheet

Cassette

Slide out the MP Cassette.

→

Pushing the tab on the right rail, pull out the cassette.

Slide out the 500-Sheet Cassette.

→

Pushing the tabs on both the right and left rails, pull out the cassette.

12 Upper Front Left

Cover

Remove No. 4.

→

Remove two screws that secure the Upper

Front Left Cover.

13 Left Cover

14 Upper Cover

Remove six screws that secure the Left Cover.

Remove two screws that secure the Upper Cover.

15 Left IR Cover

16 Original Cover

Remove two screws that secure the Left IR Cover.

17 Rear Right IR

Cover

Remove No. 22.

→

Remove No. 19.

→

Remove two screws that secure the Rear Right IR Cover.

18 Left Hinge Cover Remove one screw that secure the Left Hinge Cover.

19 Rear Left IR Cover Remove No. 17.

→

Remove two screws that secure the Rear

Left IR Cover.

20 Rear Upper Cover Remove No. 21.

→

Remove No. 17.

→

Remove No. 19.

→

Remove four screws that secure Rear Upper Cover.

21 Rear Lower Cover Remove No. 26.

→

Remove No. 25.

→

Open No. 30.

→

Open

No. 31.

→

Remove five screws that secure the Rear Lower

Cover.

22 Right Hinge Cover Remove one screw that secure the Right Hinge Cover.

23 Connector Cover Remove one screw that secure the Connector Cover.

24 Rear Inside Cover Remove No. 22.

→

Remove three screws that secure the Rear

Inside Cover.

D-5


99.01.07

No.

Part Name Removal Procedure

25 Toner Bottle Cover Open the Toner Bottle Cover.

→

Unhook the dowels at four places of the Toner Bottle Cover.

26 Harness Cover Remove one screw that secure the Harness Cover.

27 Right Lower Cover Remove one screw that secure the Right Lower Cover.

28

29

500-Sheet Cassette Side Cover

Manual Bypass

Tray

Open the Side Cover.

→

Slide the Side Cover to the front and, at the same time, pull the rear side out of the frame.

Remove No. 26.

→

Unplug one connector.

→

Remove three screws that secure the Manual Bypass Tray.

30 Side Cover

31 Fusing Unit See D-26.

32 Front Inside Cover Remove No. 8.

→

Remove No. 31.

→

Remove two screws that secure the Front Inside Cover.

33 Right IR Cover Remove three screws that secure the Right IR Cover.

D-6


99.01.07

2-2.

REMOVAL OF CIRCUIT BOARDS AND OTHER ELECTRICAL

COMPOMENTS

•

When removing a circuit board or other electrical component, refer to “PRECAUTIONS

FOR HANDLING THE PWBs” contained in SWITCHES ON PWBs and follow the corresponding removal procedures.

•

The removal procedures given in the following omit the removal of connectors and screws securing the circuit board support or circuit board.

•

Where it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body.

HGB

BCR

INV

PWB-R

PU2

CCD

PWB-L

UN2

UN3

PWB-A

PWB-I

PWB-A

PU1

UN1

PWB-N

PWB-R

PWB-R

PWB-H

HV1

1167D146CA

D-7


99.01.07

Symbol Part Name Removal Procedure

PWB-A Master Board Remove the Upper Cover.

→

Remove nine screws and the MFB Box Cover.

→

Remove two screws and the MFB Box Assy.

→

PWB-A

PWB-A Cassette Main Board Remove the Connector Cover.

→

PWB-A

PWB-H Double Feed Detecting

Board

Slide out the MP Cassette.

→

Remove one screw and the PWB-H Mounting Bracket Assy.

→

PWB-H

PWB-I Paper Size Detecting

Board

Remove the Harness Cover.

→

Remove the Rear

Cover.

→

Remove two screws and the PW Board

Cover.

→

PWB-I

PWB-L PPM Switching Board Remove the Harness Cover.

→

Remove the Rear

Cover.

→

Remove one screw and the PWB-L Mounting Bracket Assy.

→

PWB-L

PWB-N RAM Board Remove the Upper Cover.

→


→

PWB-N

PWB-R

PWB-R

Fuser Frame Register

Board

Pre-Transfer Guide

Plate Register Board 1

Remove the Fusing Unit.

→

Remove the rear lamp cover.

→

PWB-R

Remove the Vertical Transport Unit.

→

Remove two screws and two ground plates.

→

PWB-R

PWB-R Pre-Transfer Guide

Plate Register Board 2

Open the Side Cover.

→

Remove the Imaging Cartridge.

→

Remove one screw and the PW Board

Cover.

→

PWB-R

PU1 Power Supply Board 1 Remove the Harness Cover.

→

Remove the Rear

Cover.

→

Remove the Left Cover.

→

Remove five screws and the Reinforcement Bracket.

→

Remove three screws and the PU1 Mounting Bracket Assy.

→

PU1

PU2 Power Supply Board 2 Remove the Harness Cover.

→

Remove the Rear

Cover.

→

PU2

HV1 High Voltage Unit Open the Side Cover.

→

Remove the Imaging Cartridge.

→

Remove two screws and the HV1 Cover.

→

HV1

INV

BCR

HGB

Inverter Board

BCR Board

HGB Board

Remove the Original Glass.

→

INV

Remove the Rear Left IR Cover.

→

Remove three screws and the Harness Cover.

→

BCR

Remove the Original Glass.

→

Remove the Right IR

Cover.

→

Remove the Optical Cover.

→

Remove the

Rear Lower Cover.

→

Remove the Rear Upper Cover.

→

Remove the Shielding Plate. (U.S.A. and Canada only)

→

Remove one screw and the Harness Cover.

→

Unplug nine connectors.

→

Remove five screws and the HGB Mounting Bracket Assy.

→

HGB

CCD CCD Board See D-15.

D-8


99.01.07

Symbol

UN2

Part Name

MFB Board

UN3 Polygon Motor Drive

Board

Removal Procedure

Remove the Upper Cover.

→


→

UN2

Remove the PH Unit.

→

UN3

D-9


99.01.07

2-3.

PAPER TAKE-UP/TRANSPORT SECTION

(1) Replacement of the Paper Take-Up Roll

1. Slide out the MP Cassette.

4108D033AA

2. Lock the Paper Lifting Plate.

3. Snap off one C-clip of the Paper Take-Up Roll

Assy.

4. Slide the Paper Take-Up Roll Assy to the rear so that it can be pulled off the bushing at the front.

1167D140AA

5. Snap off one C-clip and remove and replace the

Paper Take-Up Roll.

4108D035AA

(2) Replacement of the Paper Dust Remover

1. Open the Side Cover.

1171D021AA

2. Remove the Paper Dust Remover and replace it.

1167D007AB

D-10


99.01.07

(3) Cleaning of the Paper Dust Remover


1171D021AA

2. Remove the Paper Dust Remover.

1167D007AB

3. Using a brush, whisk dust and dirt off the Paper

Dust Remover.

1167D008AB

(4) Cleaning of the Side Cover

Using a soft cloth dampened with alcohol, wipe the

Side Cover.

1171D052AB

D-11


99.01.07

2-4.

OPTICAL SECTION

(1) Removal of the IR Unit

1. Remove the Original Cover, Front Holding Bracket, Upper Front Left Cover, Front Cover,

Front Upper Cover, Rear Right IR Cover, Rear Left IR Cover, Rear Lower Cover, Rear

Upper Cover, and Front Inside Cover.

2. Remove one screw and the Motor Cover.

1171D054AA

3. Remove the Shielding Plate. (U.S.A. and Canada only)

4. Remove one screw and the Harness Cover.

1167D149DA

5. Unplug eight connectors of the HGB Board.

1167D027AC

6. Remove three screws and the Harness Cover.

7. Unplug one connector of the BCR Board.

1167D032AC

D-12


99.01.07

8. Remove one screw and the Total Counter Mounting Bracket Assy.

9. Unplug one connector of the Control Panel.

10. Remove two screws that secure the front end of the frame.

1167D033AC

11. Remove five screws that secure the rear end of the frame.

1167D059AC

12. Raise the rear end of the IR Unit and pull the unit out toward front.

1171D053AA

(2) Removal of the PH Unit

NOTES

•

•

•

•

Do not place the PH Unit upside down or subject it to excessive shock.

Replace the PH Unit as one unit.

NEVER attempt to disassemble or adjust the PH Unit.

Whenever the PH Unit has been removed, make the following adjustments:

Edge Erase, Registration (CD, FD) (Printer), Registration (IR).

1. Remove the Upper Cover, Front Cover, Left Cover, and Rear Cover.

2. Remove four screws and the MFB Box Cover.

3. Unplug five connectors of the MFB Board.

1167D058AE

D-13


99.01.07

4. Remove two screws and the MFB Box Assy.

1167D028AA

5. Remove five screws and the Reinforcement

Bracket.

6. Remove four screws and the handle.

1167D062AC

7. Unplug all connectors (13) from Master Board

PWB-A.

1167D029AC

8. Remove the harness from all cord clamps (12) on the PH Base Plate.

1167D030AB

9. Remove four screws and the PH Unit.

1167D012AA

D-14


99.01.07

(3) Removal of the CCD Unit

1. Remove the Original Glass.

2. Remove four screws and the Cover.

1167D014AB

3. Unplug two connectors of the CCD Unit.

4. Remove two screws and the CCD Unit.

1171D055AA

NOTES

1. When removing the CCD Unit, remove only those screws and parts that are specified.

(Remove the CCD Unit as one unit.)

2. Whenever the CCD Unit has been replaced, make the following adjustment:

FD of Zoom Adjust (IR).

(4) Cleaning of the Scanner Rails/Bushings


2. Using a soft cloth, wipe clean the Scanner Rails and Bushings.

1167D016AB

D-15


99.01.07

(5) Cleaning of the Mirrors


2. Wipe clean the Mirrors with a soft cloth.

1167D017AC

(6) Cleaning of the Lens

1. Remove the CCD Unit.

2. Wipe clean the Lens with a soft cloth.

1167D018AB

(7) Cleaning of the Original Glass

Wipe clean the Original Glass with a soft cloth.

1171D050AA

(8) Removal of the Scanner


2. Remove the Rear Holding Bracket.

3. Slide the Scanner to the position shown.

1167D039AC

D-16


99.01.07

4. Remove one screw and unplug the connector of the Exposure Lamp.

5. Remove the flat cable of the Exposure Lamp.

1167D037AC

6. Remove one screw and the Lamp Fixing Bracket.

Rear

1167D035AD

7. Slide the Exposure Lamp to the front and remove it.

Front

1167D036AA

8. Remove two screws and the Scanner.

1167D049AB

D-17


99.01.07

(9) Removal of the Scanner Drive Cables

1. Remove the Original Glass and ADF Glass Assy.

2. Remove the Left IR Cover.

3. Remove the Scanner.

4. Unhook the spring of the cable on the hook side, one each at the front and in the rear.

1167D044AB

5. Remove one screw and the Original Size Detection

Sensor.

✽ Inch Areas Option.

1167D070AA

6. Snap off one E-ring and remove one mounting screw from the front pulley and slide the pulley to the rear.

1167D071AA

7. Snap off one E-ring and remove one mounting screw from the rear pulley and slide the pulley to the front.

1167D072AA

8. Remove the Scanner Drive Cable, hook end first.

D-18


99.01.07

(10) Winding of the Scanner Drive Cables

Pulley H

Pulley E

Pulley F

Pulley D

Pulley G

Pulley B

Pulley A

Pulley C

1167D047AB

Front

1. Position the round bead of the Scanner Drive

Cable in the pulley as shown.

1167D051AC

2. Wind the hook end of the Scanner Drive Cable two turns counterclockwise from the rear side to the front.

Cable on Hook End

1167D052AD

Cable on

Bead End

3. Wind the bead end of the cable four turns clockwise from the front to the rear. Then, secure the cable with tape.

NOTE

Make sure that no part of the cable rides on the other.

1167D053AD

D-19


99.01.07

4. Slide the pulley to the front and install one mounting screw and one E-ring.

1167D073AA

Pulley D

5. Wind the bead end of the cable around pulley D and pulley C, then hook the bead onto the Adjustable Anchor.

Pulley C

1167D056AC

6. Wind the hook end of the cable around pulley A and pulley B.

Pulley A

Pulley B

1167D057AC

7. Fit the hook end of the cable into the groove in the

Cable Guide and hook the spring.

Cable Guide

1167D074AA

Rear

8. Position the round bead of the Scanner Drive

Cable in the pulley as shown.

1167D051AC

D-20


99.01.07

9. Wind the hook end of the cable two turns counterclockwise from the front to the rear.

Cable on Hook End

1167D054AD

Cable on

Bead End

10. Wind the bead end of the cable four turns clockwise from the rear to the front. Then, secure the cable with tape.

NOTE

Make sure that no part of the cable rides on the other.

1167D055AD

11. Slide the pulley toward the rear and install one mounting screw and one E-ring.

Pulley G

1167D075AA

Pulley H

12. Wind the bead end of the cable around pulley H and pulley G and hook the bead onto the Adjustable Anchor.

Pulley E

1167D076AA

13. Wind the hook end of the cable around pulley E and pulley F.

Pulley F

1167D078AA

D-21


99.01.07

14. Fit the hook end of the cable into the groove in the

Cable Guide and hook the spring.

Cable Guide

1167D077AA

15. Peel off the tape from the pulleys at the front and rear.

16. Mount the Scanner.

17. Mount the Original Size Detection Sensor.

18. Reinstall the Left IR Cover.

19. Reinstall the Original Glass and ADF Glass Assy.

20. Perform the Focus-Positioning of the Scanner and 2nd/3rd Mirrors Carriage.

(For details, see ADJUSTMENT.)

NOTE

Whenever the Scanner Drive Cables have been removed, be sure to make the following adjustment: CD of Zoom Adjust (IR).

D-22


99.01.07

2-5.

IMAGE TRANSFER SECTION

(1) Removal of the Image Transfer Roller


1167D006AD

2. Raise the Image Transfer Guide Plate.

1167D061AA

3. Remove the Image Transfer Roller and replace it.

NOTE

Do not touch the surface of the Image Transfer Roller directly with bare hands.

4108D027AA

(2) Cleaning of the Pre-Image Transfer Guide Plate


1171D021AA

D-23


99.01.07

1167D010AA

2. Using a soft cloth dampened with alcohol, wipe the

Pre-Image Transfer Guide Plate.

NOTE

Make sure the alcohol does not touch the surface of the Image Transfer Roller.

D-24


99.01.07

2-6.

DEVELOPING SECTION

(1) Removal of the Imaging Cartridge


1171D021AA

1171D023AA

2. Holding onto the green handles, slide the Imaging

Cartridge part of the way out.

3. Then grasp the handle on top of the cartridge and pull the cartridge out.

NOTE

When installing the Imaging Cartridge, push it all the way into the machine.

If the cartridge is not properly installed, the PC Drum protective shutter of the cartridge may not be opened or may even be damaged.

D-25


99.01.07

2-7.

FUSING SECTION

(1) Removal of the Fusing Unit


1171D021AA

2. Remove the Front Cover.

3. Unplug one connector at the front.

1167D020AB

4. Open the Exit Cover and unplug two connectors in the rear.

5. Close the Exit Cover and remove two screws and the Fusing Unit.

1167D021AB

(2) Removal of the Fusing Roller Heater Lamp, Fusing Right Roller, Fusing Left

Roller, Fusing Roller Thermistor, Fusing Roller Thermostat, and Fusing Roller

Heater Lamp Fuse

1. Open the Exit Cover.

2. Remove one screw and the Fusing Front Cover.

1171D036AA

D-26


99.01.07

3. Snap off one E-ring and remove the Exit Cover.

1171D037AA

4. Unhook one spring to free the Idle Lever.

5. Remove two harnesses.

6. Remove two screws and the Rear Cover.

1171D038AA

7. Remove two screws and the rear Lamp Holder.

1171D040AA

8. Remove one screw and the front Lamp Holder.

9. Remove the Fusing Roller Heater Lamp.

1171D042AA

10. Remove two screws and the Fusing Rear Guide

Assy.

11. Remove two pressure springs.

1171D043AA

D-27


99.01.07

12. Snap off one E-ring and remove the front Misfeed

Clearing Lever Assy and bearing.

13. Remove the Fusing Right Roller.

1171D044AA

14. Snap off two retaining rings.

15. Remove one gear and two bushings.

16. Remove the Fusing Left Roller.

1171D045AA

NOTE

When the Fusing Left Roller is removed, it can cause the spring to come off the Separator Finger. After the

Fusing Left Roller has later been reinstalled, be sure to hook the spring onto the Separator Finger.

1171D046AA

17. Remove one screw and the Fusing Roller Thermistor.

18. Remove two screws and the Fusing Roller Heater

Lamp Fuse.

19. Remove two screws and the Fusing Roller Thermostat.

1171D047AA

D-28


99.01.07

3

ADJUSTMENT

3-1.

ADJUSTMENT JIGS AND TOOLS USED

1. Scanner/Mirrors Carriage Positioning Jigs

1167D108AA

3-2.

ADJUSTMENT REQUIREMENT LIST

Adjustment Item

Touch Panel Adj.

Original Size Detecting Sensor

Adjustment

↑

Loop Adjustment —

Requirements

Automatically adjusted

Edge Erase

Leading

Trailing

Right/Left

Registration (CD) (Printer)

Registration (FD) (Printer)

Registration (IR)

CD

—

—

—

10 ± 2.0 mm

↑

↑

↑

FD

Zoom Adjust (IR)

CD

FD

IR-Erasure Width

200 ±1.0 mm

300 ±1.5 mm

—

Adjustment Point Ref. Page

Control Panel D-32

↑

↑

D-33

D-34

↑

↑

↑

↑

↑

↑

↑

↑

↑

↑

D-35

D-36

D-37

D-38

D-40

D-42

D-44

D-46

D-48

D-50

D-29


99.01.07

3-3.

ADJUSTMENT OF BELT TENSION

•

Adjustment of the Scanner Motor Timing Belt


2. Remove four screws and the Cover.

1167D014AB

1167D109AB

3. Loosen the two screws that secure the Scanner

Motor. Using a bar tension gage, pull the motor to the right with a tension of 1000 g ±50 g and, at the same time, tighten the mounting screws.

NOTE

After the adjustment, turn the timing belt to check that the belt teeth are in mesh with the pulley grooves.

D-30


99.01.07

3-4.

TEST PRINT

NOTES

This function is used to make the following electrical and image adjustments:

•

•

•

•

Registration (CD) (Printer)

Registration (FD) (Printer)

Registration (IR)

Zoom Adjust (IR)

Adjustment Procedure

1. Check that “Copy Track Mode” of “Copy Track” under “Admin. Management” available from “Utility” is “OFF.”

1171D026CA

2. Select the paper source for the test print.

1171D027CA

3. Press the Utility key on the control panel and touch

[User Management].

1171D028CA

4. Touch [Test Print] to produce a test pattern.

1171D029CA

D-31


99.01.07

3-5.

ELECTRICAL/IMAGE ADJUSTMENT

(1) Touch Panel Adj.

NOTE

Make this adjustment after either of the following procedures have been performed:

•

•

Memory Clear

Control Panel replacement


1. Call the Initial mode to the screen. (For details, see SWITCHES ON PWBs, TECH.

REP. SETTINGS.)

2. Touch [Touch Panel Adj.].

1 2

4

1171D056CA

3

1171D057CA

1171D059CA 1171D058CA

“Initial” Screen

3. Touch + on screen 1.

NOTE

At this time, ensure that the very center of “+

”

is touched using the tip of a ballpoint pen or similar device.




D-32


99.01.07

(2) Original Size Detecting Sensor Adjustment (F7-1)

NOTE

Make this adjustment after any of the following procedures have been performed:

•

•

•

•

Memory Clear

A faulty original size detection occurs

Replacement of the CCD Unit and Scanner parts (including the Exposure Lamp)

RAM Board replacement


1. Stack five sheets of blank A3 or 11” × 17” paper on the Original Glass and lower the Original Cover.

1167D110AB

2. Call the Tech. Rep. mode to the screen.

3. Touch [Function] to call the Function menu.

4. Touch F7-1 Original Size Detecting Sensor Adjustment.

5. Press the Start key to run the Original Size Detecting Sensor Adjustment function.

NOTE

The Start key remains lit up orange while this function is being run and lights up green as soon as the sequence is completed.

D-33


99.01.07

(3) Loop Adjustment

Requirement

Adjust so that a correct loop is formed before the Synchronizing Rollers when paper is fed through.

Adjust Mode

Loop Adjustment

Setting Value

-5 to +5

NOTE

This adjustment is to be made when any of the following symptoms occurs: variations in the amount of print leading edge void, paper skew, and misfeed.



2. Touch [Tech. Rep. Choice], then [Printer].

3. Touch [Loop Adjustment] to enter the Loop Adjustment mode.

4. Select the paper source for which the adjustment is to be made.

5. Press the Clear key to clear the current setting.

6. Enter the new setting value from the 10-Key Pad.

Setting Instructions

Change the setting value as necessary until there are no variations in the amount of void image along the leading edge, skewed feeding, dog-ear, or misfeed.

Use to change the + or - sign.

1171D030CA Setting Value

Use to clear setting value.

Use to enter setting value.


1171D061CA

7. Touch the [END] key to validate the setting value.

Caution

Be sure to touch the END key before returning to normal operation mode. If the Panel

Reset Key is used, the previous setting remains valid.

8. Perform the same steps to adjust for the other paper sources.

D-34


99.01.07

(4) Edge Erase

1. Leading

Requirement

A

Adjust so that the erase width on the leading edge falls within the range of 0 to 5 mm.

Adjust Mode

Edge Erase/Leading

Setting Range

0 to 5

1171D003AA

NOTE

This adjustment must be made when the PH Unit has been replaced and after Registration

(CD/FD) (Printer) has been made.




3. Touch [Edge Erase] and then [Leading] to enter the Leading Edge Erase adjustment mode.




To make the edge erase width smaller, decrease the setting value.

To make the edge erase width greater, increase the setting value.

Setting Value 1171D031CA




1167D069AA

Caution



D-35


99.01.07

2. Trailing

Requirement

A

Adjust so that the erase width on the trailing edge falls within the range of 0 to 5 mm.

Adjust Mode

Edge Erase/Trailing

Setting Range

0 to 5

1171D004AA

NOTE


(CD/FD) (Printer) has been made.




3. Touch [Edge Erase] and then [Trailing] to enter the Trailing Edge Erase adjustment mode.










1167D069AA

Caution



D-36


99.01.07

3. Right/Left

Requirement

1171D005AA

A

Adjust so that the erase width on the right/left edge falls within the range of 0 to 5 mm.

Adjust Mode

Edge Erase/Right/Left

Setting Range

0 to 5

A

NOTE


(CD) (Printer) have been made.




3. Touch [Edge Erase] and then [Right/Left] to enter the Right/Left Edge Erase adjustment mode.










1167D069AA

Caution



D-37


99.01.07

(5) Registration (CD) (Printer)

Requirement

A

Adjust so that width A on the test pattern output falls within the following range.

1171D006AA

Specification

1-Sided: 10 ±2.0 mm

2-Sided: 10 ±3.0 mm

Adjust Mode

Registration (CD)

Setting Range

-4.0 to +4.0

NOTE

This adjustment must be made when the PH Unit has been replaced and, for 2-sided, after

Registration (CD) (Printer) for each paper source for 1-sided and Registration (FD) (Printer) have been made.


1. Produce a test pattern. (For details, see 3-4. TEST PRINT.)

2. 1-Sided: Check to see if width A on the test pattern meets the specifications.

2-Sided: Using the test pattern output as the original, make an ordinary 2-sided copy.

Check to see if width A on the second side of the 2-sided copy meets the specifications.

If width A falls outside the specified range, perform these steps to make the adjustment.

D-38


99.01.07

3. Call the Adjust mode to the screen.

4. Touch [Printer] and [Registration (CD)], in that order.





If width A is wider than specifications, make the setting value smaller than the current one.

If width A is narrower than specifications, make the setting value greater than the current one.

✽ If a single adjustment procedure does not successfully bring width A into the specified range, try another setting value.






1171D061CA


Caution



9. Perform the same steps to adjust for the other paper sources.

D-39


99.01.07

(6) Registration (FD) (Printer)

Requirement

Adjust so that width A on the test pattern output falls within the following range.

A

1171D007AA

Specification

10 ±2.0 mm

Adjust Mode

Registration (FD)

Setting Range

-26 to +26

NOTE


(CD) (Printer) has been made.


1. Produce a test pattern. (For details, see 3-4. TEST PRINT.)

2. Check to see if width A on the test pattern meets the specifications.


D-40


99.01.07


4. Touch [Printer] and [Registration (FD)], in that order.













1171D061CA


Caution



D-41


99.01.07

(7) Registration (IR)

1. CD

Requirement

A

Place the test pattern output after the adjustments of

Registration (CD and FD) (Printer) have been completed on the Original Glass and make a copy of it.

Adjust so that width A on the test pattern copy falls within the following range.

1171D009AA

Specification

10 ±2.0 mm

Adjust Mode

Registration (CD)

Setting Range

-127 to +127

NOTE

This adjustment must be made when the PH Unit has been replaced and after the adjustments of Registration (CD and FD) (Printer) and CD of Zoom Adjust (IR) have been made.


1. After the adjustments of Registration (CD and FD) (Printer) and CD of Zoom Adjust (IR) have been completed, produce a test pattern. (For details, see 3-4. TEST PRINT.)

2. Place the test pattern output on the Original Glass and make a copy of it.

3. Check to see if width A on the test pattern copy meets the specifications.


D-42


99.01.07


5. Touch [IR], [Registration], and [CD], in that order.












1171D061CA


Caution



D-43


99.01.07

2. FD

Requirement

A

Place the test pattern output after the adjustments of

Registration (CD and FD) (Printer) have been completed on the Original Glass and make a copy of it.

Adjust so that width A on the test pattern copy falls within the following range.

1171D007AA

Specification

10 ±2.0 mm

Adjust Mode

Registration (FD)

Setting Range

-127 to +127

NOTE

This adjustment must be made when the PH Unit has been replaced and after the adjustments of Registration (CD and FD) (Printer) and FD of Zoom Adjust (IR) have been made.


1. After the adjustments of Registration (CD and FD) (Printer) and FD of Zoom Adjust (IR) have been completed, produce a test pattern. (For details, see 3-4. TEST PRINT.)

2. Place the test pattern output on the Original Glass and make a copy of it.

3. Check to see if width A on the test pattern copy meets the specifications.


D-44


99.01.07


5. Touch [IR], [Registration], and [FD], in that order.












1171D061CA


Caution



D-45


99.01.07

(8) Zoom Adjust (IR)

1. CD

Requirement

1. The difference should be within ±1.0% of the actual length.

2. Adjust so that the following specifications are satisfied with a scale length of 300 mm.

Zoom Ratio

Full size (×1.000)

Specification

300 ±3.0 mm

Adjust Mode

Zoom Adjust (CD)

Setting Range

0.990 to 1.010

NOTE

This adjustment must be made when the Scanner Drive Cables have been replaced and after the adjustments of Registration (CD and FD) (Printer) have been made.


1. Place a scale in parallel with the Original Width

Scale and make a copy. (Note that the scale is perpendicular to the Original Length Scale.)

✽ Use the full size (×1.000) mode and A3 or 11” × 17” paper.

✽ If the scale is of plastic and transparent, place a blank sheet of paper over it.

1167D111AA

2. Measure the length of the scale on the copy to find the difference.

✽ If the difference is outside the specification, adjust by following the procedure shown below.

1138D154AA

D-46


99.01.07


4. Touch [IR], [Zoom Adjust], and [CD], in that order.




If the scale on the copy is longer than the actual scale, decrease the setting value.

If the scale on the copy is shorter than the actual scale, increase the setting value.

✽ If the measurement does not fall within the specifications through one setting, try another setting.





1167D069AA

Caution



D-47


99.01.07

2. FD

Requirement

1. The difference should be within ±1.0% of the actual length.

2. Adjust so that the following specifications are satisfied with a scale length of 200 mm.

Zoom Ratio

Full size (×1.000)

Specification

200 ±2.0 mm

Adjust Mode

Zoom Adjust (FD)

Setting Range

0.990 to 1.010

NOTE

This adjustment must be made when the CCD Unit has been replaced and after the adjustments of Registration (CD and FD) (Printer) have been made.


1. Place a scale in parallel with the Original Length

Scale and make a copy.

✽ Use the full size (X1.000) mode and paper with a width of 200 mm or more.

✽ If the scale is of plastic and transparent, place a blank sheet of paper over it.

1167D112AA

2. Measure the length of the scale on the copy to find the difference.

✽ If the difference is outside the specification, adjust by following the procedure shown below.

1134D124AA

D-48


99.01.07


4. Touch [IR], [Zoom Adjust], and [FD], in that order.




If the scale on the copy is longer than the actual scale, decrease the setting value.

If the scale on the copy is shorter than the actual scale, increase the setting value.

✽ If the measurement does not fall within the specifications through one setting, try another setting.





1167D069AA

Caution

Be sure to touch the END key before returning to normal operating mode. If the Panel


D-49


99.01.07

(9) IR-Erasure Width

Requirement

A

A

Set so that the erase width along four edges of the paper falls within the range of 0 to 3 mm.

Adjust Mode

IR-Erasure Width

Setting Range

0 to 3

A

A

1171D062AA

NOTE

This adjustment must be made when a shadow is produced from the Original Scale.



2. Touch [Tech. Rep. Choice].

3. Touch [IR-Erasure Width] to enter the IR-Erasure Width mode.




To make the erase width along four edges of the paper smaller, decrease the setting value.

To make the erase width along four edges of the paper greater, increase the setting value.





1167D069AA

Caution



D-50


99.01.07

3-6.

OTHER ADJUSTMENTS

•

Focus-Positioning of the Scanner and 2nd/3rd Mirrors Carriage

NOTE

Make this adjustment after any of the following procedures has been performed:

•

•

•

After the Scanner Drive Cable has been replaced.

When the Scanner Fixing Bracket has been removed from the Scanner Drive Cable.

When the Scanner Drive Cable comes unwound.

Requirement

With the Scanner fixed to the Scanner Drive Cables, there should be no gap between the

Scanner/Mirrors Carriage Positioning Jig and the Scanner and also between the Scanner/

Mirrors Carriage Positioning Jig and the 2nd/3rd Mirrors Carriage.


1. Remove the Exposure Lamp. (For details, see steps 1 through 7, (8) Removal of the Scanner, 2-4

OPTICAL SECTION.)

2. Temporarily loosen the set screws of the cable holding plate of the Scanner Drive Cable.

1167D113AA

3. Fit the Scanner/Mirrors Carriage Positioning Jigs in the space between the Scanner and 2nd/3rd Mirrors Carriage.

1167D114AA

Scanner/Mirrors Carriage Positioning Jig

4. Press the Scanner up against the jig and 2nd/3rd

Mirrors Carriage and, at the same time, tighten the set screws of the cable holding plate.

2nd/3rd

Mirrors

Carriage

Scanner

1167D115AC

D-51


99.01.07

Adjusting Screw

NOTE

If the Scanner does not run parallel with the 2nd/3rd

Mirrors Carriage when the Scanner/Mirrors Carriage

Positioning Jigs are in position, turn the adjusting screw for the rear Scanner Drive Cable as necessary.

1167D116AB

✽ If the Scanner/Mirrors Carriage Positioning Jigs are not available, follow these steps to make the adjustment.

1. Temporarily loosen the set screws of the cable holding plate of the Scanner Drive Cable.

13 mm

1167D113AA

2. Obtain a distance of 13 mm between the 2nd/3rd

Mirrors Carriage and rail.

Adjusting Screw

1167D117AC

3. Secure the Scanner where it is located at a position 21 mm from the right side face.

4. Tighten the set screws of the cable holding plate.

21 mm

1167D118AC

NOTE

If the Scanner does not run parallel with the 2nd/3rd

Mirrors Carriage, turn the adjusting screw for the rear

Scanner Drive Cable as necessary.

1167D116AB

D-52


99.01.07

4

MISCELLANEOUS

4-1.

INSTALLATION OF THE KEY COUNTER SOCKET (OPTION)

1. Remove the Front Cover.

2. Remove the knockout from the Front Upper Cover.

3. Using two screws, secure the Counter Mounting

Bracket.

1167D022AB

4. Route the harness of the Key Counter as shown.

1167D025AB

5. Connect the Key Counter Socket connector.

6. Using one screw and one screw and nut, secure the counter socket.

1167D023AB

7. Using two screws, secure the Key Counter Cover.

NOTE

When the Key Counter Socket is mounted, set to “ON

”

the “Key Counter

”

available from the Security mode.

1167D024AB

D-53


99.01.07

4-2.

REMOUNTING THE EEPROM (IC3A)

NOTES

•

If the Imaging Cartridge is not to be replaced after the Master Board has been replaced with a new one, be sure to remount the EEPROM (IC3A) from the old to new Master

•

Board.

If the Master Board has been replaced with a new one and the EEPROM (IC3A) has not been remounted, be sure to replace the Imaging Cartridge with a new one. Because the

EEPROM contains no data in this case, make settings and readjustments as necessary.

1. Remove the Master Board. (For details, see 2-2. REMOVAL OF CIRCUIT BOARDS

AND OTHER ELECTRICAL COMPONENTS.)

2. Demount the EEPROM (IC3A) from the new Master Board.

3. Demount the EEPROM (IC3A) from the old Master Board and remount it onto the new

Master Board.

New EEPROM

Old EEPROM

New Master Board

A

A

1171D049AA

Old Master Board

1171D048AA

NOTE

Note the alignment notch on the EEPROM (IC3A) when mounting the IC.

D-54

FrameMaker Ver.5.5E(PC) Di250 TROUBLESHOOTING

99.01.08

D 2500iD

TROUBLESHOOTING

14413


99.01.08

CONTENTS

1. INTRODUCTION ............................................................................................. T-1

1-1. General Precautions ................................................................................ T-1

1-2. How to Use This Book ............................................................................. T-1

1-3. Reading the Text ..................................................................................... T-1

2. I/O CHECK ...................................................................................................... T-2

2-1. Controlled Parts Check Procedure .......................................................... T-2

2-2. I/O Check List .......................................................................................... T-3

3. PAPER TRANSPORT FAILURE ..................................................................... T-8

3-1. Paper Misfeed .......................................................................................... T-8

3-2. Size Error ................................................................................................. T-10

3-3. Misfeed Detection Sensor Layout ............................................................ T-11

3-4. Types of Misfeed Detection and Detection Timings ................................ T-12

3-5. Misfeed Troubleshooting Procedures ...................................................... T-14

(1) Copier Take-Up Misfeed .................................................................. T-14

(2) Manual Bypass Take-Up Misfeed .................................................... T-16

(3) Separator/Fusing Misfeed ............................................................... T-18

(4) Paper Take-Up/Transport Misfeed (PF-108/PF-110) ...................... T-20

(5) Paper Take-Up/Transport Misfeed (PF-106) ................................... T-22

(6) Duplex Turnover/Take-Up Misfeed (AD-10) .................................... T-25

4. MALFUNCTION ............................................................................................... T-27

4-1. Detection Timing by Malfunction Code .................................................... T-27

4-2. Troubleshooting Procedures by Malfunction Code .................................. T-30

(1) C0000: M2 Malfunction

C0010: M1 Malfunction

C0045: M3 Malfunction

C004C: M8 Malfunction

C004E: M4 Malfunction

C0070: M6 Malfunction .................................................................... T-30

(2) C0500: Warming-up Failure

C0510: Abnormally Low Fusing Temperature

C0520: Abnormally High Fusing Temperature ................................ T-33

(3) C0650: Faulty PC12

C0651: Faulty PC13 ........................................................................ T-35

(4) C0990: EMOT Malfunction

C0991: Lift 1 Ascent Motion Failure

C0995: HMOT Malfunction

C0999: Lift 2 Ascent Motion Failure

C099D: Communications Error ........................................................ T-37

(5) C0F32: Faulty E1

C0F33: ATDC Adjustment Failure ................................................... T-40

(6) C10 ✽✽ to C13 ✽✽ ............................................................................. T-41

(7) The Copier Does not Turn ON. ........................................................ T-42

5. IMAGE FAILURE ............................................................................................. T-43

5-1. Image Failure Troubleshooting ................................................................ T-43

5-2. Initial Checks ........................................................................................... T-43

5-3. Troubleshooting Procedures by Image Failure ........................................ T-45 i


99.01.08

(1) Blank Copy ...................................................................................... T-46

(2) Black Copy ...................................................................................... T-46

(3) Low Image Density .......................................................................... T-47

(4) Foggy Background .......................................................................... T-48

(5) Black Streaks or Bands ................................................................... T-49

(6) Black Spots ...................................................................................... T-49

(7) Blank Streaks or Bands ................................................................... T-50

(8) Void Areas ....................................................................................... T-50

(9) Smear on Back ................................................................................ T-51

(10) Uneven Image Density .................................................................... T-51

(11) Gradation Reproduction Failure ...................................................... T-51

(12) Rough Image ................................................................................... T-52

(13) Periodically Uneven Image .............................................................. T-52 ii


99.01.08

1

INTRODUCTION

1-1.

General Precautions

1. When servicing the copier with its covers removed, use utmost care to prevent your hands, clothing, and tools from being caught in revolving parts including the chains and gears. When servicing the copier with the Rear Cover removed, be sure to fit the interlock switch actuating jig in position.

2. Before attempting to replace parts and unplug connectors, make sure that the power cord of the copier has been unplugged from the wall outlet.

3. Never create a closed circuit across connector pins except those specified in the text and on the printed circuit.

4. When creating a closed circuit and measuring a voltage across connector pins specified in the text, be sure to use the green wire (GND).

5. When the user is using a word processor or personal computer from a wall outlet of the same line, take necessary steps to prevent the circuit breaker from opening due to overloads.

6. Keep all disassembled parts in good order and keep tools under control so that none will be lost or damaged.

1-2.

How to Use This Book

1. If a component on a PWB or any other functional unit including a motor is defective, the text only instructs you to replace the whole PWB or functional unit and does not give troubleshooting procedures applicable within the defective unit.

2. All troubleshooting procedures contained herein assume that there are no breaks in the harnesses and cords and all connectors are plugged into the right positions.

3. For the removal procedures of covers and parts, see DIS/REASSEMBLY, ADJUST-

MENT.

4. The troubleshooting procedures are given in the order of greater frequency of trouble or order of operation.

5. The procedures preclude possible malfunctions due to noise and other external causes.

1-3.

Reading the Text

1. The paper transport failure troubleshooting procedures are given according to the symptom. First identify the location where the paper is present and start the procedure for that particular location. For malfunction troubleshooting, start with step 1 and onward.

2. Make checks in numerical order of steps and, if an item is checked okay, go to the next step.

Pattern 1

Step Check Item

1 Is--?

Result Action

YES Do this.

2

Go to step 2 if you answered No.

Pattern 2

Step Check Item Result

1 Is--?

YES

NO

2

Action

Do this.

Check that.

Go to step 2 if it checks okay.

T-1


99.01.08

2

I/O CHECK

2-1.

Controlled Parts Check Procedure

To allow the Tech. Rep. to easily and safely determine whether a particular controlled part is fully operational, this copier provides the following provision: checking the data of the input port of the board IC with the copier in the standby state (including a misfeed, malfunction, and closure failure condition) allows the Tech. Rep. to determine whether signals are properly input to a controlled part.

<Procedure>

1. When a misfeed or malfunction occurs, locate on a circuit diagram accompanying the text the controlled part which is probably defective.

2. Select “I/O Check” from the Tech. Rep. Mode menu screen and then access the screen which contains the controlled part picked out in step 1 above. (See SWITCHES ON

PWBs/TECH. REP. MODE.)

3. Check the input port data to determine if a signal is probably input to the controlled part.

<Controlled Part Check Procedure Through Checking Input Port Data>

Example

When a paper misfeed occurs in the paper take-up section of the copier, Synchronizing

Roller Sensor PC2 is considered to be responsible for it.

<Procedure>

1. Remove the sheet of paper misfed.

2. From the I/O Check list, it is found that the signal input to PC2 is “Timing Roller.”

3. Select “I/O Check” from Tech. Rep. Mode and then “Printer.” Now, access the screen that contains “Timing Roller.”

4. Check that the input port data of “Timing Roller” is “0” (sensor is blocked).

5. Move the PC2 actuator to unblock the sensor.

6. Check at this time that the input port data on the screen changes from “0” to “1.”

1: PC2 is operational.

0: PC2 is faulty.

T-2


99.01.08

2-2.

I/O Check List

<I/O Check Screens>

•

The following screens are only typical and the input data shown does not necessarily represent the actual one.

IR

Printer

1171T002CA

Backup

1171T030CA

Next

Next

1171T004CA

Backup

Next

1171T006CA

Backup

T-3

1171T005CA


99.01.08

<I/O Check List>

IR

Symbol

PC13

PC12

S5

PC14

Panel Display

Scanner (L)

Scanner (HP)

Size reset S

Orig. cover detecting S

Parts/Signal Name

Operation Characteristics/Panel Display

1 0

Input

Board

Scanner Home Position Sensor 2

Blocked

Scanner Home Position Sensor 1

At home

Size Reset Switch

Original Cover

Detecting Sensor

Unblocked HGB

Board

Not at home

When closed

When opened

Within 15° 15° or more

—

—

—

IC

No.

—

Port

No.

CN/PJ

No.

—— CN7HGB-27

——

——

——

CN7HGB-26

CN7HGB-24

CN7HGB-25

Printer

Symbol

PC6

PWB-H

PC5

Panel Display

1st

Drawer

Parts/Signal Name


1 0

Input

Board

Drawer

Set

Double

Feed

Cassette Set Sensor In position Out of position

Double Feed Detecting Board

Blocked ✽ 1 Unblocked

✽ 1

Master

Board

PWB-A

Paper

Near

Empty

Paper Near Empty

Sensor

Unblocked Blocked

PC4

PWB-I

S5

S4

S2

S1

S3

S5

S4

S2

S1

2nd

Drawer

3rd

Drawer

Paper

Empty

Size

Detect

Paper

Near

Empty

Paper Empty Sensor Paper not

Paper Size Detecting Board

Paper Near Empty

Sensor present

Analog value

Unblocked

Paper present

Blocked

Paper

Empty

Side

Cover

Paper Empty Sensor Paper not present

Side Cover Set Sensor

When opened

Paper present

When closed

Drawer

Detect

Cassette Set Switch In position: 2 displayed

Out of position: 0 displayed

Take-up Take-Up Sensor

Paper

Near

Empty

Paper Near Empty

Sensor

Paper present

Paper not present

Unblocked Blocked

Paper

Empty

Side

Cover


Side Cover Set Sensor present

When opened

Paper present

When closed

Drawer

Detect

Cassette Set

Switch

When

PF-110 is used

In position Out of position

Cassette

Main

Board

PWB-A

Cassette

Main

Board

PWB-A:

PF-108/

PF-110

IC

No.

IC1

IC1

IC1

IC1

IC1 P103/

AN3

IC1

PJ14A-1B to

PJ14A-4B

P12 PJ3A-11B

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

Port

No.

CN/PJ

No.

PO1 PJ13A-5B

PO2 PJ14A-8B

PO3 PJ13A-2B

PO5 PJ14A-13A

P6

P9

P5

P6

P9

PJ3A-5B

PJ3A-8B

P11 PJ3A-12A

PJ3A-2B

P12 PJ3A-11B

PJ3A-5B

PJ3A-8B

P10 PJ3A-9A

When

PF-108 is used

In position: 2 displayed


IC1 P11 PJ3A-12A

✽ 1: The display of 1 or 0 is selected only while Main Motor M2 is being energized.

T-4


99.01.08

Symbol

S3

S5

S4

S2

S1

Panel Display

4th

Drawer

Parts/Signal Name



1 0

Paper present

Paper not present

Unblocked Blocked Paper

Near

Empty

Paper

Empty

Side

Cover

Paper Near Empty

Sensor



When opened

Paper present

When closed

Drawer

Detect

Cassette Set

Switch

When

PF-110 is used


Input

Board

Cassette

Main

Board

PWB-A:

PF-108/

PF-110

S3

S5

S4

S2

S1

5th

Drawer

When

PF-108 is used




Paper

Near

Empty

Paper Near Empty

Sensor

Paper present

Paper not present

Unblocked Blocked

Paper

Empty

Side

Cover



When opened

Paper present

When closed

Drawer

Detect

Cassette Set

Switch

When

PF-110 is used


When

PF-108 is used



—— Duplex/

Bypass

PI1

S2

PC8

——

Duplex

Set

Duplex

Paper

Duplex Unit Set signal

Duplex Unit Transport Sensor


Paper present

Paper not present

Duplex

Cover

Duplex Unit Door

Set Sensor

Paper

Take-up

Manual Feed Paper

Take-Up Sensor

When opened

Paper present

When closed

Paper not present

Bypass

Set

Manual Bypass Tray

Set signal


Master

Board

PWB-A

IC

No.

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

Port

No.

CN/PJ

No.

P5 PJ3A-2B

P12 PJ3A-11B

P6

P9

P10

P11

P5

P12

P6

P9

P10

P11

P91

P92

P90

P00

P30

PJ3A-5B

PJ3A-8B

PJ3A-9A

PJ3A-12A

PJ3A-2B

PJ3A-11B

PJ3A-5B

PJ3A-8B

PJ3A-9A

PJ3A-12A

PJ4A-3B

PJ4A-2B

PJ4A-1B

PJ4A-7B

PJ4A-9B

T-5


99.01.08

Symbol

LS1

LS2

RSEN

S1

PPS0

PPS1

Panel Display

LCC Lift

Level 1

Lift

Level 2

Registration

S1S

Parts/Signal Name

Lift-Up Sensor 1

Lift-Up Sensor 2

At upper limit

At upper limit

Registration Sensor Paper present

Paper Standby Position Sensor

Paper present

✽ 2

PPS0S LCC Take-Up Sensor

PPS1S Paper Empty Sensor 1


1 0

Paper present

Paper present

Not at upper limit

Not at upper limit

Paper not present

Paper not present

✽ 2

Paper not present

Paper not present

Input

Board

LCC Main

Board

PWB-A:

PF-106

IC

No.

IC4

IC4

IC4

IC4

IC4

IC4

Port

No.

CN/PJ

No.

P74/

ANI4

P73/

ANI3

P22/

INTP1

CN4A-6

CN4A-9

CN4A-2

P23/

INTP2/

CI

P24/

INTP3

CN3A-5

CN4A-11

P25/

INTP4/

ASCK

P75/

ANI5

CN3A-2

CN6A-1 RS1

RS2

PPS2

SW1

Paper

Near

Empty

1

Paper

Near

Empty

2

Paper

Empty

Paper

Size

Paper Near Empty

Sensor 1

Paper Near Empty

Sensor 2

Paper Empty Sensor 2

DIP switch

Blocked

Blocked

Unblocked

Unblocked

Paper present

Letter C: 0 displayed

A4C: 1 displayed

B5C: 2 displayed

Analog value

Paper not present

IC4

IC4 P76/

ANI6

IC4

IC4

P72/

ANI2

P13,

P14,

P15

IC1 P107/

AN7

CN5A-5

CN3A-8

———

TH1 Fusing

Unit

—— I/C

Fusing

Thermistor

Fusing Roller Thermistor

I/C Discrimination

I/C Type Detection signal

ATDC ATDC Sensor

Analog value

Master

Board

PWB-A

IC1 P100/

AN0

PJ16A-5

PJ15A-3

E1

TH2 Drum

Thermistor

I/C Thermistor

Analog value

Analog value

IC1 P106/

AN6

IC1 P104/

AN4

PJ15A-5

PJ13A-10A

✽ 2: The display of 1 or 0 is selected only while LCC Transport Motor HMOT is being energized.

T-6


99.01.08

Symbol

SIDE

FRONT

S2

PC11

S4

PC10

PC2

PC3

M3

M2

M1

M10

M8

Panel Display

Doors/

Toner

Paper

Passage

Drive

Motor

Detect

LCC

Side

Cover

LCC

Front

Cover

Side

Cover

Parts/Signal Name

Side Cover Set Sensor

LCC Set Sensor


1 0

When opened

Out of position

When closed

In position

Toner

Bottle

Cover

Sub

Hopper

Side Cover Interlock

Switch

Toner Bottle Cover

Sensor

Sub Hopper Toner

Empty Switch

When opened

When opened

When closed

When closed

Toner not loaded: 1 and

0 alternately displayed.

Toner loaded: 0 displayed

At home Not at home

Toner

Bottle

Set

Timing

Roller

Exit

Cooling Fan

Main

Motor

I/U

Motor

Polygon

Motor

Toner Bottle Home

Position Sensor


Sensor

Paper Exit Sensor

Fusing Cooling Fan

Motor/LOCK

Main Motor/LOCK

I/C Motor/LOCK

Paper present

Paper present

When energized

When energized

Paper not present

Paper not present

When energized: 1 and


When deenergized: 0 displayed

When deenergized

When deenergized

Polygon Motor/

LOCK

Ventilation Fan

Ozone Fan Motor

When energized

When deenergized

When energized: 1 and


When deenergized: 0 displayed

Input

Board

LCC Main

Board

PWB-A

Master

Board

PWB-A

IC

No.

IC4

IC4

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

IC1

Port

No.

P34/

T00

CN/PJ

No.

CN3A-12

P35/

T01

CN6A-4

P31

P33

P06

P40

P41

P77

P04

P43

P42

P95

P51

PJ7A-1

PJ11A-5B

PJ11A-7B

PJ11A-2B

PJ13A-7A

PJ13A-12A

PJ13A-5A

PJ16A-2

PJ16A-4

PJ8A-4

PJ11A-3A

T-7


99.01.08

3

PAPER TRANSPORT FAILURE

3-1.

Paper Misfeed

When a paper misfeed occurs, the Touch Panel shows the corresponding message, misfeed location, and paper location.

display Misfeed location

display Paper location

10 8 7

9

2 1

3

6 5

11

12

13

14

16

15

18 17

20 19

22 21

10

8

7

9

4

6 5

11

12

13

14

16

15

18 17

20 19

22 21

1167T007CA 1167T008CA

or Display

1

14

15

16

17

10

11

12

13

18

19

20

21

22

8

9

6

7

4

5

2

3

Misfeed/Paper Location

AFR-14 take-up, AFR-14 single feed

AFR-14 reverse, AFR-14 exit

AFR-14 transport

AF-6 take-up, AF-6 transport

JS-200 transport, OT-100 transport

JS-200 exit, OT-100 exit

Horizontal transport

Finisher transport, 1st Tray exit, Elevator Tray exit

Mailbin transport

Finisher Tray

Separator, Fusing Unit

Manual Bypass take-up

Duplex turnover, Duplex take-up (AD-10)

1st Drawer take-up

2nd Drawer transport

2nd Drawer take-up

3rd Drawer transport (PF-108/PF-110/PF-106)

3rd Drawer take-up (PF-108/PF-110/PF-106)

4th Drawer transport (PF-108/PF-110/PF-106)

4th Drawer take-up (PF-108/PF-110/PF-106)

5th Drawer transport (PF-108/PF-110)

5th Drawer take-up (PF-108/PF-110)

Ref. Page

See the relevant option service manual.

(3)

(2)

(6)

(1)

(1)

(1)

(4) or (5)

(4) or (5)

(4) or (5)

(4) or (5)

(4)

(4)

T-8


99.01.08

✽ If a communications error occurs between UN2 and PWB-A during a copy cycle, it forces a paper misfeed condition ( displayed on the Touch Panel). If that happens, check the circuit between UN2 and PWB-A for proper connection and, if it is intact, replace the board.

<Resetting the Display>

Remove all sheets of paper misfed and left inside, and then open and close the Side

Cover.

Misfeed in the copier Misfeed in the option

Remove all sheets of paper misfed and left inside, and then raise and lower or disconnect and reconnect the option.

✽ If the misfeed display is not reset by these procedures, check the misfeed detecting sensor at the paper location.

T-9


99.01.08

3-2.

Size Error

The following warning screen appears after a misfeed display has been reset if the actual size of the paper loaded in a paper source differs from the paper size set for that particular paper source.

[1st to 5th Drawer] [Manual Bypass]

1171T009CA 1171T010CA

✽ 1st to 5th Drawer: A size error is indicated by a highlighted paper source in the copier overview display. (In the above example, there is a size error in the

2nd Drawer.)

<Resetting the Size Error Display>

Slide out the drawer, then slide it back in, or load paper in the Manual Bypass Tray.

<Causes of a Size Error>

•

Wrong paper size settings have been made.

•

The user loads paper of a size different from what is set for the paper source.

•

Two or more sheets of paper are being taken up and fed in.

T-10


99.01.08

3-3.

Misfeed Detection Sensor Layout

Paper Exit Sensor PC3

1167T021AA


Sensor PC2

Manual Feed Paper

Take-Up Sensor PC8

T-11


99.01.08

3-4.

Types of Misfeed Detection and Detection Timings

•

The following are the types of misfeed detection and detection timings for different misfeed locations.

NOTE

For misfeed detection types and detection timings of options, see the relevant option service manual.

<Copier Take-Up Misfeed>

Type Detection Timing

Paper take-up failure detection

•

1st Drawer paper take-up:

Synchronizing Roller Sensor PC2 is not unblocked (H) even after the lapse of T sec. after Paper Take-Up

Solenoid SL1 has been energized for the second paper take-up retry sequence.

•

2nd Drawer paper take-up:

PC2 is not unblocked (H) even after the lapse of T sec. after SL1 has been energized for the first paper takeup retry sequence.

•

1st/2nd Drawer paper take-up:

PC2 is unblocked (H) within T sec. after SL1 has been energized.

Timer Value

T (sec.)

1.28

2.27

0.20

<Manual Bypass Take-Up Misfeed>

Type

Bypass paper take-up failure detection

Paper left

Detection Timing

PC2 is not unblocked (H) even after T sec. after Manual Feed Paper Take-Up Clutch CL3 has been energized.

PC2 is unblocked (H) within T sec. after CL3 has been energized.

Manual Feed Paper Take-Up Sensor PC8 is blocked

(L) when the Power Switch is turned ON, CPU is reset, or cover is opened and closed.

Timer Value

T (sec.)

0.89

0.20

———

T-12


99.01.08

<Separator Misfeed>


Timer Value

T (sec.)

Leading edge detection by Paper

Exit Sensor PC3

PC3 is not blocked (L) even after the lapse of T sec. after PC2 has been unblocked (H).

Trailing edge detection by Synchronizing Roller

Sensor PC2

PC2 is not blocked (L) even after the lapse of T sec. after it has been unblocked (H).

PC2 is blocked (L) within T sec. after it has been unblocked (H).

Paper is stationary During a sequence of detecting a paper size based on the period of time between when Synchronizing Clutch

CL1 is energized and when PC2 is blocked (L), the paper size detected is longer than the size data sent from the controller by +260 mm or more.

Size error detection

The paper size detected based on the period of time between when CL1 is energized and when PC2 is blocked (L) is more than the size data sent from the controller by ±20 mm or more.

1.92

4.20

✽

1.05

✽

———

———

Paper left PC2 is unblocked (H) when the Power Switch is turned

ON, CPU is reset, or cover is opened and closed.

———

✽ Excludes the period of time during which the paper is stationary before the Synchronizing Roller.

<Fusing Misfeed>


Timer Value

T (sec.)

Trailing edge detection by Paper

Exit Sensor PC3

PC3 is not unblocked (H) even after the lapse of T sec. after PC2 has been blocked (L).

Paper left PC3 is blocked (L) when the Power Switch is turned

ON, CPU is reset, or cover is opened and closed.

1.96

———

T-13


99.01.08

3-5.

Misfeed Troubleshooting Procedures

(1) Copier Take-Up Misfeed

Relevant Electrical Parts

Paper Take-Up Solenoid SL1

Synchronizing Roller Sensor PC2

Master Board PWB-A

Cassette Main Board PWB-A

T-14

1171C10TAA


99.01.08

<Copier Take-Up Misfeed Troubleshooting Procedure>

Symptom

Paper is not taken up at all.

•

Paper is at a stop before the vertical transport section.

•

Paper is at a stop near the

Synchronizing

Rollers.

Step Check Item

1 Does the paper being used meet the product specifications?

2 Is the paper curled, wavy, or damp?

3 Are the Edge Guide and Trailing Edge Stop (of the drawer) positioned to the exact size of the paper used?

4 Is the Paper Take-Up Roll deformed, worn, or dirty with paper dust?

5 If the Paper Lifting Plate dirty or deformed?

6 Has the misfeed been detected while the Multi Purpose Cassette was being used?

7 Is the Paper Separator Pad deformed, worn, or dirty with paper dust?

8 Check SL1 for operation.

Does the voltage across

CN19-1 on the PWB-A side and GND change from DC24V to DC0V when the Start key is pressed?

9 Is the Paper Separator Finger dirty or deformed?

10 Check CL2 for operation.

Does the voltage across CN9-

1 on the PWB-A side and GND change from DC24V to DC0V when the Start key is pressed?


Does the voltage across PJ3A-

1A on PWB-A (Cassette Main

Board) and GND change from

LOW to HIGH when the Start key is pressed?

1 Is the Vertical Transport Roller deformed, worn, or dirty with paper dust?

2 If the Vertical Transport Guide

Plate dirty or deformed?

3 Is PC2 fully operational?

Check the input data using I/O

Check.

Result Action

NO Instruct the user to use the paper that meets product specifications.

YES Change the paper. Instruct the user on the storage of paper.

NO Slide the guides to the exact size of the paper.

YES Clean or change the Paper

Take-Up Roll.


Lifting Plate.

YES Check steps 7 and 8.

NO Check steps 9 and onward.


Separator Pad.

YES Check various parts for possi-

NO ble overload and, if they are okay, change SL1.

Change PWB-A.


NO

NO

Separator Finger.

Change PWB-A.

YES Check various parts for possible overload and, if they are okay, change SL1 or CL2.

Change PWB-A (Cassette

Main Board) or PWB-A.

YES Clean or change the Vertical

Transport Roller.


Transport Guide Plate.

YES Check various parts for possible overload and, if they are okay, change PWB-A.

NO Check the PC2 actuator for operation and, if it is intact, change PC2.

T-15


99.01.08

(2) Manual Bypass Take-Up Misfeed


Manual Feed Paper Take-Up Clutch CL3


Manual Feed Paper Take-Up Sensor PC8

Master Board PWB-A

1167C01TAA

T-16


99.01.08

<Manual Bypass Take-Up Misfeed Troubleshooting Procedure>

Symptom


Step

1

2

Does the paper being used meet the product specifications?

Is the paper curled, wavy, or damp?

Check Item Result Action



YES Clean or change the Manual

Feed Paper Take-Up Roller or

Roll.

Paper is at a stop near the Synchronizing Rollers.

3 Is the Manual Feed Paper

Take-Up Roller or Roll deformed, worn, or dirty with paper dust?



Check.



CN14-2 and GND change from

DC24V to DC0V when the misfeed condition is reset?



Check.

NO Check the PC8 actuator for

YES Check various parts for possi-

NO operation and, if it is intact, change PC8.

ble overload and, if they are okay, change CL3.

Change PWB-A.



T-17


99.01.08

(3) Separator/Fusing Misfeed




Synchronizing Clutch CL1

Master Board PWB-A

1170C03TAB

T-18


99.01.08

<Separator/Fusing Misfeed Troubleshooting Procedure>

Symptom


Paper is at a stop near the PC Drum.

Paper is wedged at the PC Drum

Paper Separator

Fingers.

Step Check Item

1 Are the Synchronizing Rollers deformed, worn, or dirty with paper dust?

2 Is a good length of loop formed before the Synchronizing Rollers?

3

4


1 Is the Pre-Image Transfer

Guide Plate dirty or deformed?

2 Is the Image Transfer Roller deformed, worn, or dirty with paper dust?

1 Are the PC Drum Paper Separator Fingers dirty or deformed?

1

Is a size error displayed when the misfeed display is reset?

Is PC2 fully operational?


Check.

Does the voltage across CN6-

9 on the PWB-A side and GND change from DC24V to DC0V when the Start key is pressed?

Is the Fusing Guide Plate dirty or deformed?

Result Action

YES Clean or change the Synchronizing Rollers.

NO Select the following functions in this order: Tech. Rep. Mode

→

Tech. Rep. Choice

→

Printer

→

Loop Adjustment and make the loop adjustment.

YES Check that the size of the paper actually loaded in the current paper source matches the size set for it.


YES Check various parts for possible overload and, if they are okay, change CL1.

NO Change PWB-A.

YES Clean or change the guide plate.

YES Clean or change the Image

Transfer Roller.

YES Clean or change the separator fingers.

NO Check the clearance between the PC Drum Paper Separator

Fingers and PC Drum.

YES Clean or change the Fusing

Guide Plate.

Paper is at a stop before the Fusing

Rollers.

Paper is at a stop at the Fusing Rollers.


Rollers.

Paper is at a stop at the exit section.

1 Are the Fusing Rollers deformed, worn, or dirty with paper dust?

2 Are the Fusing Separator Fingers dirty or deformed?

1 Is the Paper Exit Roller deformed, worn, or dirty with paper dust?



Check.

YES Clean, correct, or change the

Fusing Separator Fingers.


Exit Roller.



T-19


99.01.08

(4) Paper Take-Up/Transport Misfeed (PF-108/PF-110)


Paper Take-Up Solenoid SL1

Take-Up Sensor S3


Transport Clutch CL2

Master Board PWB-A


Cassette Main Board PWB-A: PF-108/PF-110

T-20

1171C11TAA


99.01.08

<Paper Take-Up/Transport Misfeed (PF-108/PF-110) Troubleshooting Procedure>

Symptom


•

Paper is at a stop at the vertical transport section.

•


Synchronizing

Rollers.

Step Check Item

1 Does the paper being used meet the product specifications?

2 Is the paper curled, wavy, or damp?

3 Are the Edge Guide and Trailing

Edge Stop (of the drawer) positioned to the exact size of the paper used?

4 Is the Paper Take-Up Roll deformed, worn, or dirty with paper dust?

5 Is the Paper Lifting Plate dirty or deformed?

6 Is the Paper Separator Finger dirty or deformed?


Does the voltage across CN9-1 on the PWB-A side and GND change from DC24V to DC0V when the Start key is pressed?


Does the voltage across PJ3A-

1A on PWB-A (PF-108/PF-110) and GND change from LOW to

HIGH when the Start key is pressed?

1 Is the Vertical Transport Roller deformed, worn, or dirty with paper dust?

2 Is the Vertical Transport Guide

Plate dirty or deformed?

3 Is a size error displayed when the misfeed display is reset?

4 ✽ A misfeed is detected at the transport section of the 3rd

Drawer.

Is PC2 fully operational? Check the input data using I/O Check.

5 Are all S3’s fully operational?


Check.

6 Does the voltage across PJ3A-

2B on PWB-A (PF-108/PF-110) and GND change to DC0V when

S3 is blocked and to DC5V when

S3 is unblocked?

Result Action



NO Slide the guides to the exact size of the paper.

YES Clean or change the Paper Take-

Up Roll.

YES Clean or change the Paper Lifting

Plate.

YES Clean or change the Paper Sep-

NO arator Finger.

Change PWB-A.

YES Check various parts for possible

NO overload and, if they are okay, change SL1 or CL2.

Change PWB-A (PF-108/PF-

110), PWB-A (Cassette Main

Board), or PWB-A, in that order.


Transport Roller.


Transport Guide Plate.

YES Check that the size of the paper loaded in the current drawer matches the size set for that drawer.

NO Check the PC2 actuator for operation and, if it is intact, change

PC2.


YES Change PWB-A (PF-108/PF-

NO

110) or PWB-A (Cassette Main

Board).

Check the S3 actuator for operation and, if it is intact, change S3.

T-21


99.01.08

(5) Paper Take-Up/Transport Misfeed (PF-106)


Take-Up Clutch 1 P1CL

Take-Up Clutch 2 P2CL

Paper Empty Sensor 1 PPS1

Paper Standby Position Sensor S1

Separator Clutch BCL

Registration Clutch RCL

Registration Sensor RSEN


Transport Clutch CL2

Take-Up Sensor S3

LCC Main Board PWB-A: PF-106



Master Board PWB-A

1171C12TAA

<Paper Take-Up/Transport Misfeed (PF-106) Troubleshooting Procedure>

Symptom

•


•

Paper is at a stop before the

Paper Feed/

Separator Rolls.

Step

1

2

3

Does the paper being used meet the product specifications?

Check Item

Is the paper curled, wavy, or damp?

Is the Paper Take-Up Roll deformed, worn, or dirty with paper dust?

Result

NO

Action

Instruct the user to use the paper that meets product specifications.



Take-Up Roll.

T-22


99.01.08

Symptom

•


•

Paper is at a stop before the

Paper Feed/

Separator Rolls.

Step Check Item

4 Is PPS1 fully operational? Check the input data using I/O Check.

Result Action

YES Perform steps 6 and onward.

5 Does the voltage across CN3A-2 on PWB-A (PF-106) and GND change from LOW to HIGH when

PPS1 is blocked?

YES Change PWB-A (PF-106),

PWB-A (PF-108/PF-110), or

PWB-A (Cassette Main

Board), in that order.

NO Change PPS1.


6 Is paper fed up to S1 when paper is loaded in Lift 2 only and the drawer is slid into the copier?

7 Check P2CL for operation.

Does the voltage across CN7A-6 on PWB-A (PF-106) and GND change from DC24V to DC0V when step 6 is performed again?

YES Check various parts for possible overload and, if they are okay, change P2CL.

NO Change PWB-A (PF-106),

PWB-A (PF-108/PF-110),



8 Check P1CL for operation.

Does the voltage across CN7A-8 on PWB-A (PF-106) and GND change from DC24V to DC0V when step 6 is performed again?

9 Is S1 fully operational? Check the input data using I/O Check.

Does the “S1S” input signal change from 0 to 1 when the drawer loaded with paper is slid into the copier?

10 Does the voltage across CN3A-5 on PWB-A (PF-106) and GND change from LOW to HIGH when step 9 is performed again?


PWB-A (PF-108/PF-110),





PWB-A (PF-108/PF-110), or



NO Change S1.


Feed Roll or Separator Roll.

11 Is the Paper Feed Roll or Separator Roll deformed, worn, or dirty with paper dust?

12 Check BCL for operation.

Does the voltage across CN7A-2 on PWB-A (PF-106) and GND change from DC24V to DC0V when the Start key is pressed?

YES Check various parts for possible overload and, if they are okay, change P1CL or BCL.


PWB-A (PF-108/PF-110),



T-23


99.01.08

Symptom

•

Paper is at a stop at the vertical transport section.

•


Synchronizing

Rollers.

Step Check Item

1 Is the Vertical Transport

Roller or Roll deformed, worn, or dirty with paper dust?

2 Is RSEN fully operational?

Check the input data using

I/O Check.

Result Action

YES Clean or change the Vertical Transport Roller or Roll.

YES Check step 4 and onward.

3 Does the voltage across

CN4A-2 on PWB-A (PF-

106) and GND change from

LOW to HIGH when RSEN is blocked?


NO

PWB-A (PF-108/PF-110), or PWB-A (Cassette Main


Change RSEN.

4 Check RCL for operation.


CN7A-4 on PWB-A (PF-

106) and GND change from

DC24V to DC0V when the

Start key is pressed?



CN9-1 on PWB-A and GND change from DC24V to

DC0V when the Start key is pressed?

6 ✽ If the 3rd Drawer is PF-

106

Is PC2 fully operational?


I/O Check.

7 ✽ If the 4th Drawer is PF-

106

Is S3 fully operational?


I/O Check.


PJ3A-2B on PWB-A (PF-

108/PF-110) and GND change to DC0V when S3 is blocked and to DC5V when S3 is unblocked?


PWB-A (PF-108/PF-110),



NO Change PWB-A.

YES Check various parts for possible overload and, if they are okay, change RCL,

CL2, or PWB-A, in that order.


YES Check various parts for possible overload and, if they are okay, change RCL,

CL2, or PWB-A, in that order.

YES Change PWB-A (PF-108/

PF-110) or PWB-A (Cassette Main Board).

NO Check the S3 actuator for operation and, if it is intact, change S3.

T-24


99.01.08

(6) Duplex Turnover/Take-Up Misfeed (AD-10)



Duplex Unit Transport Sensor PI1


Switchback Motor M1

Duplex Unit Transport Motor M2

Manual Feed Paper Take-Up Clutch CL3

Master Board PWB-A

Duplex Main Board PWB-A: AD-10

T-25

1167C02TAA


99.01.08

<Duplex Turnover/Take-Up Misfeed (AD-10) Troubleshooting Procedure>

Symptom Step Check Item Result Action

Paper is at a stop near the exit section.

1 Is the Paper Exit Roller deformed, worn, or dirty with paper dust?

2 Is PC3 fully operational? Check the input data using I/O Check.

YES Clean or change the Paper Exit

Roller.

3 Check M1 for operation.

Does the voltage across PJ1A-7 on PWB-A (AD-10) and GND change from DC5V to DC0V during a 2-sided copy cycle?

4 Does the voltage across PJ1A-5 on PWB-A (AD-10) and GND change from DC5V to DC0V during a 2-sided copy cycle?


PC3.

YES Check gears for proper engagement.

NO Change PWB-A.

YES Check various parts for possible overload and, if they are okay, change M1 or PWB-A (AD-10).

Paper is at a stop inside the Duplex

Unit.

1 Is the Duplex Unit Transport


2 Is a torn piece of paper present on the paper path surface?

NO Change PWB-A.

YES Clean or change the Duplex Unit

Transport Roller or Roll.

YES Remove the torn piece of paper.

3 Is the Manual Feed Take-Up



Does the voltage across PJ1A-3 on PWB-A (AD-10) and GND change from DC5V to DC0V during a 2-sided copy cycle?

5 Is PI1 fully operational? Check the input data using I/O Check.

YES Clean or change the Manual

Feed Take-Up Roller or Roll.

YES Check gears for proper engage-

NO ment.

Change PWB-A.



Does the voltage across CN14-2 and GND change from DC24V to

DC0V when paper is taken up from the Duplex Unit?

1 Is PC2 fully operational? Check the input data using I/O Check.

NO Check the PI1 actuator for operation and, if it is intact, change

PWB-A (AD-10).

YES Check various parts for possible overload and, if they are okay, change CL3 or M2.

NO Change PWB-A.



PC2.

T-26


99.01.08

4

MALFUNCTION

The copier CPU has a function that self-diagnoses the copier conditions. On detection of a malfunction, the corresponding code representing a particular malfunction name, location, and details as listed below is displayed on the Touch Panel together with a Tech. Rep. call message.

•

Perform the following steps to reset the malfunction.

Malfunction Resetting Procedure

•

Turn OFF, then ON the Power Switch or open and close the Side Cover for all malfunctions except fusing-related ones (C05 ✽✽ ).

•

Use “Trouble Reset” of the “Initial” screen to reset all malfunctions including fusingrelated ones (C05 ✽✽ ).

4-1.

Detection Timing by Malfunction Code

Code Description

C0000 Main Motor M2 malfunction

Detection Timing

The Lock signal remains HIGH for a continuous 1-sec. period or more while M2 remains energized.

C0010 I/C Motor M1 malfunction The Lock signal remains HIGH for a continuous 1-sec. period or more while M1 remains energized.

C0045 Fusing Cooling Fan

Motor M3 malfunction

The Lock signal remains HIGH or LOW for a continuous

1-sec. period or more while M3 remains energized.

C004C Ozone Fan Motor M8 malfunction

C004E Power Unit Cooling Fan

Motor M4

C0070

C0050

C0510

C0520

Main Hopper Toner

Replenishing Motor M6 malfunction

Warming-up failure

Abnormally low fusing temperature

Abnormally high fusing temperature

The Lock signal remains HIGH or LOW for a continuous

1-sec. period or more while M8 remains energized.

The Lock signal (analog input voltage) remains 0.4V or less for a continuous 0.5-sec. period or more while M4 remains energized.

•

Toner Bottle Home Position Sensor PC10 remains blocked (L) for a continuous 2-sec. period or more while M6 remains energized.

•

PC10 remains unblocked (H) for a continuous 6-sec. period or more while M6 remains energized.

The temperature of the Fusing Rollers do not reach the required level even after the lapse of a given period of time during a warming-up cycle.

•

From room temperature to 100°C: Within 65 sec.

•

From 100°C to 140°C: Within 25 sec.

•

From 140°C to 170°C: Within 20 sec.

•

From 170°C to the completion of warming-up: Within

22 sec.

•

The fusing temperature remains 130°C or less for a continuous 0.1-sec. period or more during the standby state or printing.

•

The fusing temperature remains 80°C or less for a continuous 2-min. period or more during the low-temperature standby state.

The fusing temperature remains 230°C or more for a continuous 0.1-sec. period or more.

T-27


99.01.08

Code Description

C0650 Faulty Scanner Home Position

Sensor 1 PC12

C0651 Faulty Scanner Home Position

Sensor 2 PC13

Detection Timing

<The Power Switch is turned ON, Original Cover lowered, or

Start key pressed when the Scanner is at its home position>

•

PC12 is not unblocked (H) even when the Scanner moves

10 mm to the left.

•

PC12 is not blocked (L) even when the Scanner moves 4 mm to the right after PC12 has been unblocked (H).

<The Power Switch is turned ON, Original Cover lowered, or

Start key pressed when the Scanner is at any position other than home>

•

PC12 is not blocked (L) even when the Scanner moves

469.5 mm to the right.

When the Start key is pressed with a document loaded in the

Document Feed Tray of AF-7, PC13 is not blocked (L) even when the Scanner moves 463 mm to the left after PC12 has been unblocked (H).

C0990 LCC Lift-Up Motor EMOT malfunction (PF-106)

C0991 Lift 1 ascent motion failure

(PF-106)

C0995 LCC Transport Motor HMOT malfunction (PF-106)

C0999 Lift 2 ascent motion failure

(PF-106)

C099D Communications error (PF-

106)

C0B00 Transport Motor M1 drive malfunction (FN-100/FN-500)

C0B0F Paper Entrance Switching

Motor M1 drive malfunction

(FN-100/FN-500)

C0B30 CD Aligning Motor M4 drive malfunction (FN-100/FN-500)

C0B38 Shift Motor M5 drive malfunction (FN-100/FN-500)

C0B4D Paper Holding Tray Motor M10 drive malfunction (FN-100/FN-

500)

C0B4E Finisher Tray Motor M8 drive malfunction (FN-100/FN-500)

C0B50 Stapling Motor drive malfunction (FN-100/FN-500)

C0BA0 Elevator Motor M9 drive malfunction (FN-100/FN-500)

C0F32 Faulty ATDC Sensor E1

✽ See option service manual.

The value of data read by E1 is faulty. [E1 reading is 7% or less (3.92V or more) or 19% or more (1.41V or less).]

T-28


99.01.08

Code Description

C0F33 ATDC adjustment failure

Detection Timing

•

In an F8 (ATDC control voltage automatic adjustment) operation, the adjustment of ATDC control voltage is not completed within 1 min. after E1 sampling.

•

In an F8 operation, the control voltage falls outside the range of 5.39V to 8.15V.

C1038 Engine connection error

•

The system fails in checking initial engine connection when Power Switch S1 is turned ON.

•

The system succeeded in checking initial connection when S1 was turned ON; then it fails in rechecking initial connection through the execution of a software reset when a communications error occurs during operation.

C1300 Polygon Motor M10 malfunction

<Resolution selection failure detection>

•

The Lock signal is not detected for a given period of time after the resolution has been selected. (The

Lock signal is not, however, detected for 1 sec. after the start.)

<Faulty Lock signal detection>

•

No Lock signals are detected for the 1-sec. period which starts 1 sec. after the first Lock.

✽ First Lock: The first Lock signal following 1 sec. after the selection of start or half speed.

<Out-of-timing Lock detection>

•

The Lock signal is not detected for a continuous 0.5sec. period while M10 is in the stabilized turning state (after a Lock has been detected).

<Abnormal Lock detection>

•

The Lock signal remains ON for a continuous 5-sec. period while M10 remains deenergized.

C133A Communications error

(G/A)

C133B Communications error

(option I/F)

C13C0 I/C initialization failure

———————————————————

———————————————————

After failing to blow the imaging cartridge fuse 2 consecutive times, 3.6V or more is detected and the I/C is determined to be new.

C13D0 Faulty EEPROM No initial data is written in EEPROM.

C13F0 HSYNC detection failure

•

The SOS rising edge is not detected even after the lapse of 0.2 sec. after Polygon Motor M10 has started and laser output started.

•

No SOS rising edges are detected while VIA remains ON.

T-29


99.01.08

4-2.

Troubleshooting Procedures by Malfunction Code

(1) C0000: M2 Malfunction

C0010: M1 Malfunction


C004C: M8 Malfunction

C004E: M4 Malfunction



I/C Motor M1

Main Motor M2

Fusing Cooling Fan Motor M3

Power Unit Cooling Fan Motor M4

Main Hopper Toner Replenishing Motor M6

Ozone Fan Motor M8

Toner Bottle Home Position Sensor PC10

Master Board PWB-A

T-30

1167C03TAA


99.01.08

C0000

Step Check Item

1 Does M2 turn after the malfunction has been reset?


Does the voltage across PJ1-3 of

M2 and GND change from DC5V to

DC0V after the malfunction has been reset?

3 Does the voltage across PJ1-4 of



Result Action

NO Check various parts for possible overload.

NO Change PWB-A.

YES

NO

Change PWB-A.

Change M2.

C0010

Step Check Item



Does the voltage across PJ2-3 of






Result Action


NO Change PWB-A.

YES

NO

Change PWB-A.

Change M14.

C0045

Step Check Item



Does the voltage across CN6-8 on the PWB-A side and GND change from DC0V to DC24V after the malfunction has been reset?

3 Does the “C0045” display persist even after M3 has been replaced with a new one?

Result Action

NO Check the connector and harness between M3 and PWB-A.

NO Change PWB-A.

YES Change PWB-A.

T-31


99.01.08

C004C

Step Check Item



Does the voltage across CN41-3 on the PWB-A side and GND change from DC0V to DC24V after the malfunction has been reset?

3 Does the “C004C” display persist even after M8 has been replaced with a new one?

Result Action


NO Change PWB-A.

YES Change PWB-A.

C004E

Step Check Item


2 Does the “C004E” display persist even after M4 has been replaced with a new one?

Result Action

YES Change PWB-A.

YES Change PWB-A.

C0070

Step Check Item

1 After the malfunction has been reset, remove the Rear Lower

Cover and block Toner Bottle Cover

Sensor PC11. Then, unlocking the

Toner Bottle Lock Lever, turn the

Toner Bottle a half turn by hand.

Does the Toner Bottle turn when

PC11 is unblocked (H) with the

Toner Bottle Lock Lever kept unlocked?



DC24V when step 1 is performed again?



Check. Does the input signal value for “Toner Bottle Set” change between “0” and “1” when the Toner

Bottle is turned by hand?

Result

YES Perform step 3.

Action


YES

NO

YES

NO

Change M6.

Change PWB-A.

Change PWB-A.

Change PC10.

T-32


99.01.08

(2) C0500: Warming-up Failure

C0510: Abnormally Low Fusing Temperature

C0520: Abnormally High Fusing Temperature

Fusing Roller Heater Lamp H1

Fusing Roller Thermistor TH1

Fusing Roller Thermostat TS1


Fusing Roller Heater Lamp Fuse TF1

Side Cover Interlock Switch 2 S3

Power Supply Unit 1 PU1

Master Board PWB-A

1171C08TAB

T-33


99.01.08

C0500, C0510

Step Check Item

1 Does H1 turn ON after the malfunction is reset?

2 Is there continuity across CN3-1 and 2 on the Fusing Unit end with

CN3 (2P) disconnected?

3 Is there continuity across 1A and

1B, and across 2A and 2B, of S3 when S3 is turned ON?

4 Is the resistance of TH1 (across

CN5-2 and 3 on the Fusing Unit end) infinity?

5 Is Fuse F2 on PU1 conducting?

Result Action

YES Check TH1 for contamination or installation.

NO Check H1, TS1, and TF1 for continuity.

NO

YES

YES

Change S3.

Change TH1.

Change PU1 or PWB-A.

NO Change the fuse.

C0520

Step Check Item

1 Is TH1 installed properly?

2 Is TH1 dirty?

3 Is the circuit across CN5-2 and 3 on the Fusing Unit end closed when

CN5 (4P) is disconnected?

Result Action

NO Install TH1 correctly.

YES Clean or change TH1.

YES Change TH1.

NO Change PWB-A or PU1.

T-34


99.01.08

(3) C0650: Faulty PC12

C0651: Faulty PC13

Scanner Home Position Sensor 1 PC12

Scanner Home Position Sensor 2 PC13

Scanner Motor M5

Master Board PWB-A


BCR Board BCR

HGB Board HGB

MFB Board UN2

T-35

1170C10TAB


99.01.08

C0650, C0651

Step Check Item

1 Is M5 energized?

Select the following functions in this order: Tech. Rep. Mode

→

Movement Check

→

Scanner. Then, enter an appropriate value in “Absolute Position” or “Relative Position” and energize M5.

2 Is “C0650” being displayed?

Result Action

NO Check various parts for possible overload and, if they are okay, change M5, BCR, HGB, UN2, or

PWB-A, in that order.

YES Perform steps 3 and 4.

NO Perform steps 5 and 6.

NO Change PC12.


CN11BCR-1 on BCR and GND change from DC0V to DC5V when step 1 is performed a second time and PC12 is unblocked?

4 Does the voltage across CN1BCR-

26 on BCR and GND change from

DC0V to DC5V when step 3 is performed a second time?


CN12BCR-1 on BCR and GND change from DC5V to DC0V when step 1 is performed a third time and

PC13 is unblocked?

6 Does the voltage across CN1BCR-

27 on BCR and GND change from

DC0V to DC5V when step 5 is performed a second time?

YES

NO

NO

YES

NO

Change HGB, UN2, or PWB-A, in that order.

Change BCR.

Change PC13.

Change HGB, UN2, or PWB-A, in that order.

Change BCR.

T-36


99.01.08

(4) C0990: EMOT Malfunction

C0991: Lift 1 Ascent Motion Failure

C0995: HMOT Malfunction

C0999: Lift 2 Ascent Motion Failure

C099D: Communications Error

LCC Lift-Up Motor EMOT

Lift-Up Sensor 1 LS1

Lift-Up Sensor 2 LS2

LCC Transport Motor HMOT


LCC Main Board PWB-A: PF-106



Master Board PWB-A

1171C13TAB

T-37


99.01.08

C0990

Step Check Item

1 Does “C0990” reappear even after

EMOT has been replaced with a new one?

Result Action

YES Change PWB-A (PF-106), PWB-A

(PF-108/PF-110), PWB-A (Cassette Main Board), or PWB-A, in that order.

C0991

Step Check Item

1 Is LS1 fully operational? Check the input data using I/O Check.

2 Does the voltage across CN4A-6 on

PWB-A (PF-106) and GND change to DC5V when LS1 is blocked and to DC0V when LS1 is unblocked?

3 Does EMOT turn when a drawer loaded with paper is slid into the copier?


PWB-A (PF-106) and GND change from DC0V to DC24V when step 3 is performed again?

Result Action

YES Perform step 3 and onward.


NO

(PF-108/PF-110), or PWB-A (Cassette Main Board), in that order.

Change LS1.

YES Check gears and couplings for proper engagement and, if they are okay, change PWB-A.

YES Check various parts for possible overload and, if they are okay, change EMOT.

NO Change PWB-A (PF-106), PWB-A


C0995

Step Check Item

1 Does “C0995” reappear even after

HMOT has been replaced with a new one?

Result Action



T-38


99.01.08

C0999

Step Check Item

1 Is LS2 fully operational? Check the input data using I/O Check.


PWB-A (PF-106) and GND change to DC5V when LS2 is blocked and to DC0V when LS2 is unblocked?

3 Does EMOT turn when a drawer loaded with paper is slid into the copier?


PWB-A (PF-106) and GND change from DC0V to DC24V when step 3 is performed again?

Result Action

YES Perform step 3 and onward.


(PF-108/PF-110), or PWB-A (Cassette Main Board), in that order.

NO Change LS2.

YES Check gears and couplings for proper engagement and, if they are okay, change PWB-A.

YES Check various parts for possible overload and, if they are okay, change EMOT.

NO Change PWB-A (PF-106), PWB-A


C099D

Step Check Item

1 Does “C099D” reappear even after

PWB-A (PF-106) has been replaced with a new one?

Result Action

YES Change PWB-A (PF-108/PF-110),

PWB-A (Cassette Main Board), or


T-39


99.01.08

(5) C0F32: Faulty E1

C0F33: ATDC Adjustment Failure

ATDC Sensor E1


Master Board PWB-A

1171C04TAA

C0F32, C0F33

Step Check Item

1 Are PJ40, CN50, CN17, and PWB-

A PJ15A connected properly?

2 Is the CN50 connection dirty?

3 Is “C0F32” or “C0F33” displayed even when an I/C with the same T/

C as that of a new one has been installed?

4 Is “C0F32” or “C0F33” displayed even when an I/C with the same T/

C as that of a new one has been installed and an F8 operation run?

(Be sure to record the ATDC control voltage setting value if an F8 operation is to be run.)

Result Action

NO Connect them properly.

YES

NO

YES

NO

Clean.

Change the I/C with a new one.

Change PWB-A, install the old I/C, and return the ATDC control voltage setting to the value recorded. If

“C0F32” or “C0F33” redisplayed, change the I/C with a new one.

Change the I/C with a new one.

T-40


99.01.08

(6) C10 ✽✽ to C13 ✽✽

•

These malfunctions are concerned with faulty symptoms as they relate to software, hardware, and communications. For remedial actions, change the board, check for cable connections, and turn the Power Switch OFF and ON.

Code Action

C1038 1. Check the connection between PWB-A and UN2, reset the malfunction, and turn OFF and ON the Power Switch.

2. If the same malfunction persists, change PWB-A or UN2.

C1300 1. Reset the malfunction and turn OFF and ON the Power Switch.

2. If the same malfunction persists, check the harnesses and PJs between PH

Unit and PWB-A and, if they are intact, change PH Unit or PWB-A, in that order.

C133A 1. Reset the malfunction and turn OFF and ON the Power Switch.

2. If the same malfunction persists, check the connection between the copier

PWB-A and A to E below:

A. 2nd Drawer paper source unit

B. 3rd Drawer paper source unit (PF-108/PF-110/PF-106)

C. 4th Drawer paper source unit (PF-108/PF-110/PF-106)

D. 5th Drawer paper source unit (PF-108/PF-110)

E. Job Tray (JS-200) or shift Tray (OT-100)

3. If the connection is made properly, unplug the connector between the copier and A to E and turn OFF and ON the Power Switch.

→

If the malfunction code display persists, change the copier PWB-A.

→

If the malfunction is no longer detected, connect the connectors sequentially and turn OFF and ON the Power Switch. When “C133A” is detected, check the connector of the corresponding paper source unit and, if it is intact, change the PWB-A of the unit.

C133B 1. Reset the malfunction and turn OFF and ON the Power Switch.

2. If the same malfunction persists, check the connection between the copier

PWB-A and Finisher PWB-A.

3. If the connection is made properly, unplug the connector between the copier and Finisher and turn OFF and ON the Power Switch.

→

If the malfunction code display persists, change the copier PWB-A.

→

If the malfunction is no longer detected, check the connector and, if it is intact, change the Finisher PWB-A.

C13C0 1. Reset the malfunction, turn OFF and ON the Power Switch, and reinstall the

I/C.

2. If the malfunction is detected again, check the terminal block for the I/C fuse and HV1 and, if it is intact, change HV1 or PWB-A.

C13D0 1. Reset the malfunction, turn OFF and ON the Power Switch, and unplug the power cord and plug it back in.

2. If the malfunction is detected again, check the connection between IC3 on

PWB-A and the EEPROM and, if it is good, change PWB-A.

3. If the malfunction is still detected, change the EEPROM.

✽ For the precautions to be observed when replacing the EEPROM, see DIS/

REASSEMBLY, ADJUSTMENT.

C13F0 1. Reset the malfunction and turn OFF and ON the Power Switch.

2. If the same malfunction persists, check the harnesses and PJs between PH

Unit and PWB-A and, if they are intact, change PH Unit or PWB-A, in that order.

T-41


99.01.08

(7) The Copier Does not Turn ON.

Power Switch S1

Side Cover Interlock Switch 1 S2




Master Board PWB-A

Control Panel UN1

MFB Board UN2

Symptom

Power does not turn ON.

Step Check Item

1 Is there an AC power supply voltage across PJ1PU1-1 and 3 on PU1 when S1 is turned ON?

Result Action

NO Check S1, PU1 fuse, and power supply voltage.

2 Is the voltage across PJ5PU1-

10 and GND DC5V when S1 is turned ON?

3 Is the voltage across PJ5PU1-4 and GND DC24V when S1 is turned ON?

YES Check the fuse on PWB-A.

NO Change PU1.

NO Change PU1.

4 Is the voltage across PJ5PU1-3 and GND DC24V when S1 is turned ON?

5 Does the voltage across the S2 connector (yellow) and GND change from DC0V to DC24V when S2 is turned ON?

NO Change PU1.

NO Check S2.

6 Is the voltage across PJ7PU1-9 on PU1 and GND DC3.3V?

7 Is the voltage across CN1PU2-1 on PU2 and GND DC24V?

8 Is the voltage across CN28UN2-

8 on UN2 and GND DC-12V?

9 Is the voltage across CN28UN2-

7 on UN2 and GND DC12V?

NO Change PU1.

NO

NO

YES

NO

Change PU1.

Change PU2.

Change PWB-A.

Change PU2.

NO Change UN2.

The control panel indicates nothing.

1 Is DC24V being output from

UN2 to UN1?

Disconnect CN1UN1 of UN1 and check to see if the voltage across CN1UN1-1 on the harness side and GND is DC24V.

2 Is DC5V being output from UN2 to UN1?

Disconnect CN1UN1 of UN1 and check to see if the voltage across CN1UN1-28 on the harness side and GND, and across

CN1UN1-29 and GND, is DC5V.

YES

NO

Change UN1.

Change UN2.

T-42


99.01.08

5

IMAGE FAILURE

5-1.

Image Failure Troubleshooting

Image failures have many possible causes. For troubleshooting, it is necessary to determine whether a failure is attributable to:

1. A basic cause or any other cause

2. The input system (IR) or output system (engine).

In this chapter, troubleshooting is divided into “initial checks” and “troubleshooting procedures classified by image failures.” If an image failure has occurred, first make the initial checks, then proceed to the corresponding image failure troubleshooting procedure.

5-2.

Initial Checks

1. Place of installation

•

Is the source voltage normal? Does the voltage vary greatly?

•

Is the copier installed in a hot, humid place where temperature varies sharply?

•

Is the copier installed in a dusty place?

•

Is the copier subjected to direct sunlight?

•

Is the copier level?

2. Copy paper

•

Is the recommended paper used?

•

Is the paper damp?

•

Does the paper size set in the paper source match the size of the paper loaded in it?

3. Original

•

Is the original written in light pencil?

→

Use the test chart to check the image.

•

Is the original transparent, or are transparencies being used?

→

Place a blank sheet of paper over the original and make a copy.

•

Is the Original Glass dirty or scratched?

→

Clean a dirty glass, or replace a scratched one.

4. Adjust data and Level History data

•

Do the values set for “Adjust” and “Level History” fall within the specified range?

5. PM parts (supplies)

•

Have the PM parts (supplies), such as the PC Drum, Cleaning Blade, and other parts that affect image quality, reached the end of their cleaning or replacement cycle?

•

Are two or more imaging cartridges being used alternately?

T-43


99.01.08

6. Adjustment items (registration, focus, etc.)

•

Among the adjustment items given in DIS/REASSEMBLY, ADJUSTMENT, is there any adjustment that may remedy the image failure?

7. Input system (IR) or output system (engine)?

•

Run “F12” which can be selected as follows: Tech. Rep. Mode

→

Function.

•

If the test pattern output has the same problem as the copy image:

→

Check the output system.

•

If the test pattern output is normal:

→

Check the input system.

•

Make a copy at a different zoom ratio.

Original

Full size

Original

Reduction

Check the input system.

Full size

Reduction

Check the output system.

1167T020AB

T-44


99.01.08

5-3.

Troubleshooting Procedures by Image Failure

<Image Failure Samples>

1. Blank copy 2. Black copy 3. Low image density

4. Foggy background 5. Black streaks or bands 6. Black spots

7. Blank streaks or bands 8. Void areas 9. Smear on back

10. Uneven image density 11. Gradation reproduction failure 12. Rough image

13. Periodically uneven image

1167T017AA

T-45


99.01.08

(1) Blank Copy

Section Step

Engine

IR

1

Check Item

Is toner empty?

2 Is the drive transmission mechanism to the Developing Unit in good condition?

3 Is the image transfer current terminal intact?

4 Does the laser shutter (the one located on the laser beam path between the PH

Unit and PC Drum) open and close properly?

5 Does the I/C Shutter open and close properly?

Result Action

YES Check Sub Hopper Toner Empty

Switch S4 and change the Toner Bottle.

NO Check and change as necessary.

NO

NO

YES

Check and change as necessary.

Adjust so that the shutter opens and closes properly.

Change HV1, PH Unit, or PWB-A, in that order.

NO Adjust so that the shutter opens and closes properly.


1 Is the Scanner drive transmission mechanism in good condition?

2 Do the connections from CCD to HGB remain intact?

3 Do the connections from HGB to UN2 remain intact?

NO

YES

Reconnect.

Change CCD, HGB, or UN2, in that order.

NO Reconnect.

(2) Black Copy

Section Step

Engine 1

Check Item

Is the PC Drum charge voltage terminal in good condition?

2 Is the grid voltage terminal in good condition?

3 Is the developing bias terminal in good condition?

IR

4 Does a black copy persist even after the I/

C has been replaced with a new one?

1 Does the Exposure Lamp turn ON when

“ON” is selected for “Lighting Exposure

Lamp”? “Lighting Exposure Lamp” can be selected as follows: Tech. Rep. Mode

→

Movement Check

→

Scanner.

2 Does the voltage across CN13BCR-1 on

BCR and GND change from DC24V to

DC0V when step 1 is performed again?

3 Is an AC voltage output from INV to

Exposure Lamp when step 1 is performed again?

4 Are the mirrors and lens installed properly?

5 Are the mirrors and lens dirty?

Result Action


NO

NO

YES

YES

NO

YES

NO

NO

YES



Change HV1 or PWB-A.

Perform steps 4 and onward.

NO Check connectors and harnesses and perform steps 2 and 3.

Change BCR, HGB, or UN2, in that order.

Change LA2.

Change INV.

Install them properly.

Clean or change.

T-46


99.01.08

(3) Low Image Density

Section Step Check Item

Engine 1 Does the image get better when a copy is made with new paper loaded?

2 Is toner empty?

Result Action


IR

3

4

Is the image transfer current terminal intact?

Is the developing bias terminal intact?

5 Does the image density remain low even after the I/C has been replaced with a new one?

6 Does the image density become higher when the “Image Density” value is changed toward the plus side? “Image Density” can be selected as follows: Tech. Rep.

Mode

→

Tech. Rep. Choice

→

Printer.

7 Does the image density become higher when the “VG Adjust” value is changed toward the plus side? “VG Adjust” can be selected as follows: Tech. Rep.

Mode

→

Tech. Rep. Choice

→

Printer.

1 Do the connections from CCD to

HGB remain intact?

2 Do the connections from HGB to

UN2 remain intact?

YES Check Sub Hopper Toner

Empty Switch S4 and change the Toner Bottle.



NO This completes the procedure.

YES

YES

NO Change HV1, HGB, or UN2, in

NO

YES

This completes the procedure.


that order.

Reconnect.


NO Reconnect.

T-47


99.01.08

(4) Foggy Background

Section Step

——

Check Item

1 Is sunlight or any other extraneous light entering the copier?

Engine 1 Is the PC Drum dirty with foreign matter?

2 Is the PC Drum charge voltage terminal in good condition?


4 Is the developing bias terminal in good condition?

5 Is the Charge Neutralizing Sheet voltage terminal in good condition?

6 Is Eraser Lamp LA1 dirty?

7 Does foggy background persist even after the I/C has been replaced with a new one?

8 Does foggy background persist when the “Image Density” value is changed toward the minus side? “Image Density” can be selected as follows: Tech. Rep.

Mode

→

Tech. Rep. Choice

→

Printer.

IR

9 Does foggy background persist when the “VG Adjust” value is changed toward the minus side?

“VG Adjust” can be selected as follows: Tech. Rep. Mode

→

Tech. Rep. Choice

→

Printer.

1 Are the mirrors and lens dirty?

2 Is the Exposure Lamp dirty or deteriorated?

3 Do the connections between the

Exposure Lamp and INV remain intact?

4 Do the connections from INV to

BCR remain intact?

5 Do the connections from BCR to

HGB remain intact?


UN2 remain intact?

Result Action

YES Protect the copier from extraneous light.

YES Clean the PC Drum.

NO

NO

NO

NO

YES

NO

NO

YES

NO

YES

YES

NO

NO

NO

YES





Clean.



Change HV1, PH Unit, or PWB-

A, in that order.


Clean or change.

Clean or change.

Reconnect.

Reconnect.

Reconnect.

Change INV, BCR, HGB, or

UN2, in that order.

NO Reconnect.

T-48


99.01.08

(5) Black Streaks or Bands

Section Step

Engine

IR

1

4

5

Check Item

Is the PC Drum dirty?

2 Has toner spilled from the I/C inside of the copier?


Is the grid voltage terminal in good condition?

Are the Fusing Rollers dirty with foreign matter?

1 Are the mirrors, lens, and Original Glass dirty with foreign matter?


HGB remain intact?


UN2 remain intact?

Result Action


YES Clean the interior and change I/

C.




Rollers.

NO Change I/C.

YES Clean the mirrors, lens, and

Original Glass.

NO

YES

Reconnect.


NO Reconnect.

(6) Black Spots

Section Step

IR

Check Item

Engine 1 Is the PC Drum dirty?

2 Has toner spilled from the I/C inside of the copier?



5 Are the Fusing Rollers dirty with foreign matter?

1 Are the mirrors, lens, and Original Glass dirty with foreign matter?


HGB remain intact?


UN2 remain intact?

Result Action



C.




Rollers.

NO Change I/C.

YES Clean the mirrors, lens, and

Original Glass.

NO

YES

Reconnect.


NO Reconnect.

T-49


99.01.08

(7) Blank Streaks or Bands


Engine 1 Is the PC Drum dirty with foreign matter?

Result Action



3 Is the Image Transfer Roller dented or scratched?

4 Are the Fusing Rollers scratched or dirty?

YES

YES

YES


Change the Image Transfer

Roller.

Clean or change the Fusing

Rollers.

YES Clean the window glass.

5 Is the PH Unit window glass dirty?

6 Is the light path between PH and

PC dirty with dust?

YES

NO

Remove dust.

Change the I/C.

IR YES Clean or change.

1 Is the Shading Sheet on the Original Glass dirty?


HGB remain intact?


UN2 remain intact?

NO

YES

Reconnect.


NO Reconnect.

(8) Void Areas



2 Is the Image Transfer Roller installed correctly?

3 Is the Image Transfer Roller dented or scratched?


5 Are the Fusing Rollers scratched or deformed?

IR 1 Is the Original Glass dirty?


HGB remain intact?


UN2 remain intact?

Result Action


NO

YES

NO

YES

NO

YES Clean or change.

NO Reconnect.

YES

Install correctly.

Change the Image Transfer

Roller.


Change the Fusing Rollers.

Change the I/C.


NO Reconnect.

T-50


99.01.08

(9) Smear on Back


Engine 1 Is the Image Transfer Roller dirty?

2

3

Has toner spilled from the I/C inside of the copier?

Are the Fusing Rollers dirty?

Result

YES

Action

Clean or change.


C.


Rollers.

(10) Uneven Image Density


Engine 1 Is the Image Transfer Roller dirty or deteriorated?

Result

YES

Action

Clean or change the Image

Transfer Roller.

2 Does the image get better when a copy is made with new paper loaded?

YES

NO

Change the paper. Instruct the user on the storage of paper.

Change the I/C or PWB-A.

IR YES Clean the Original Glass, mirrors, and lens.

1 Are the Original Glass, mirrors, and lens dirty with foreign matter?

2 Is the Shading Sheet on the Original Glass dirty?

3 Is the Exposure Lamp dirty or deteriorated?


HGB remain intact?


UN2 remain intact?

YES

YES

NO

YES

Clean or change.

Clean or change.

Reconnect.


NO Reconnect.

(11) Gradation Reproduction Failure

Section Step

IR

Check Item


1 Is the Shading Sheet dirty?

2 Is the Original Glass dirty?


HGB remain intact?


UN2 remain intact?

Result Action


NO Change PWB-A.



NO Reconnect.

YES Change CCD, HGB, or UN2, in that order.

NO Reconnect.

T-51


99.01.08

(12) Rough Image


Engine 1 Is the Image Transfer Roller dirty?


IR

Result

YES

Action

Clean or change.

YES Change HV1, I/C, PH Unit, or



NO Reconnect.


HGB remain intact?


UN2 remain intact?


NO Reconnect.

(13) Periodically Uneven Image


Engine 1 Is the Developing Unit drive gear cracked or dirty with foreign matter?

2 Is the PC Drum drive gear cracked or dirty with foreign matter?

3 Is the Synchronizing Roller drive gear cracked or dirty with foreign matter?

IR

Result

YES

YES

YES

Action

Clean or change.

Clean or change.

Clean or change.

4 Is the Fusing Unit drive gear cracked or dirty with foreign mat-


ter?

5 Is the PH Assy secured properly?

YES Change the I/C or PWB-A.

NO Secure properly.


1 Is the Scanner Motor drive gear cracked or dirty with foreign matter?

2 Is the Scanner Motor secured properly?

NO Secure properly.

3 Is the Scanner secured properly?

NO Secure properly.

4 Are the Scanner Drive Cables wound properly?

NO Wind the cables properly.


5 Are the Scanner rails damaged or dirty with foreign matter?


HGB remain intact?

NO Reconnect.


UN2 remain intact?


NO Reconnect.

T-52

Develop D 2500iD Service Manual 232 Pages

Develop D 2500iD Service Manual

Service Manual

D 2500iD

Digital Copier

Safety Precautions for Inspection and Service

WARNING

CAUTION

WARNING

CAUTION

DANGER

Other Precautions

Used Batteries Precautions

GENERAL

CONTENTS

SAFETY INFORMATION

Laser Safety

Internal Laser Radiation

For United States

Laser Safety Label

Label inside copy machine

Service Precautions

Handling the P.W.B.

SPECIFICATIONS

PRECAUTIONS FOR INSTALLATION

PRECAUTIONS FOR USE

HANDLING OF THE CONSUMABLES

Do not burn, bury in the ground, or throw into the water any consumables (PC Drum, starter, toner, etc.).

OTHER PRECAUTIONS

SYSTEM OPTIONS

MECHANICAL/

ELECTRICAL

CONTENTS

CROSS-SECTIONAL VIEW

COPYING PROCESS

DRIVE SYSTEM

OPERATING SEQUENCE

CPU OVERRUN MONITOR FUNCTION

IMAGE STABILIZATION SYSTEM

IMAGING CARTRIDGE (I/C)

7-1.

I/C Drive Mechanism

7-2.

Identification and Life of I/C

PC DRUM

DRUM CHARGING

ERASE LAMP

IR SECTION

11-1. Exposure Section: Construction and Function

11-2. Image Processing Flow

11-3. Original Size Detection

UN4, UN6 and UN8 are options.

UN6, UN8 and UN9 are options.

11-4. Original Size Detection Timing

11-5. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism

PH SECTION

12-1. PH Components

12-2. Laser Emission Timing (SOS Signal)

DEVELOPING UNIT

13-1. Sleeve/Magnet Roller

13-2. Developing Bias

13-3. ATDC Sensor

13-4. Sub Hopper Toner Replenishing Mechanism

13-5. Sub Hopper Toner Empty Detecting Mechanism

13-6. Main Hopper Toner Replenishing Mechanism

13-7. I/C Cooling Fan Motor

13-8. Ozone Fan Motor

PAPER TAKE-UP/FEED SECTION

14-1. MP Cassette Paper Lifting Plate

14-2. MP Cassette-in-Position Detection

14-3. MP Cassette Paper Empty Detection

14-4. MP Cassette Paper Size Detection

14-5. Paper Take-Up Mechanism

14-6. Manual Bypass Tray

14-7. Paper Take-Up Retry Mechanism

SYNCHRONIZING ROLLERS

15-1. Synchronizing Roller Drive Mechanism/Control

15-2. Paper Dust Remover

IMAGE TRANSFER AND PAPER SEPARATION

PC DRUM PAPER SEPARATOR FINGERS