TOSHIBA GD 1150/1151, GD 1200/1201, GD 1160/1260 fax machine SERVICE MANUAL

SERVICE MANUAL

FACSIMILE

GD-1150/1151/1200/1201/1160/1260

Model: GD-1150/1151/1200/1201/1160/1260

Publish Date: Novemver 2003

File No. SME030007F0

R03102142202-TTEC

Ver06_2008-12

Trademarks

• The official name of Windows 95 is Microsoft Windows 95 Operating System.


• The official name of Windows Me is Microsoft Windows Millennium Edition Operating System.


• The official name of Windows XP is Microsoft Windows XP Operating System.

• Microsoft, Windows, Windows NT, Windows Vista and the brand names and product names of other

Microsoft products are trademarks or registered trademarks of Microsoft Corporation in the U.S. and/or other countries.

• Apple, AppleTalk, Macintosh, and Mac are trademarks of Apple Computer, Inc. in the U.S. and other countries.

• PostScript is a trademark of Adobe Systems Incorporated.

• NOVELL, NetWare, and NDS are trademarks or registered trademarks of Novell, Inc.

• Molykote is a registered trademark of Dow Corning Corporation.

• Other company names and product names in this manual are the trademarks of their respective companies.

© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved

Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION. No patent liability is assumed, however, with respect to the use of the information contained herein.

GENERAL PRECAUTIONS REGARDING THE INSTALLATION

AND SERVICE FOR e-STUDIO3511/4511, e-STUDIO281c/351c/451c, e-STUDIO350/352/450/452, e-STUDIO200L/202L/230/230L/232/280/280S/282/282S AND

GD-1150/1151/1200/1201/1160/1260

The installation and service should be done by a qualified service technician.

1) Transportation/Installation

- Be sure to transport the equipment with the number of people given in the following table holding the positions as indicated below. Pay full attention when handling it because it is quite heavy.

Model

e-STUDIO3511/4511 e-STUDIO281c/351c/451c e-STUDIO350/352/450/452 e-STUDIO200L/202L/230/

230L/232/280/280S/282/282S

Weight

Approx. 112 kg (246 lb.)

Approx. 113 kg (249 lb.)

Approx. 83 kg (182.98 lb.)

Approx. 75 kg (165.34 lb.)

Number of people

4

4

2

2

e-STUDIO3511/4511/281c/351c/451c e-STUDIO350/352/450/452/

200L/202L/230/230L/232/280/280S/282/282S

- Be sure not to hold the movable parts or units (e.g. the control panel, ADU or RADF) when transporting the equipment.

- Be sure to use a dedicated outlet with AC 110/13.2A, 115V or 127V/12A, 220V-240V or 240V/8A for its power source.

- The equipment must be grounded for safety.

Never ground it to a gas pipe or a water pipe.

- Select a suitable place for installation.

Avoid excessive heat, high humidity, dust, vibration and direct sunlight.

- Also provide proper ventilation as the equipment emits a slight amount of ozone.

- To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.

- The socket-outlet shall be installed near the equipment and shall be easily accessible.

08/03

2) Service of Machines

- Basically, be sure to turn the main switch OFF and unplug the power cord during service.

- Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the damp heater and their periphery.

- Be sure not to touch high-voltage sections such as the chargers, transfer belt, 2nd transfer roller, developer, IH control circuit, high-voltage transformer, exposure lamp control inverter, inverter for the LCD backlight and power supply unit. Especially, the board of these components should not be touched since the electric charge may remain in the capacitors, etc. on them even after the power is turned OFF.

- Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.

- Be careful when removing the covers since there might be the parts with very sharp edges underneath.

- When servicing the machines with the main switch turned ON, be sure not to touch live sections and rotating/operating sections. Avoid exposure to laser radiation.

- Use suitable measuring instruments and tools.

- Avoid exposure to laser radiation during servicing.

Avoid direct exposure to the beam.

Do not insert tools, parts, etc. that are reflective into the path of the laser beam.

Remove all watches, rings, bracelets, etc. that are reflective.

- Unplug the power cable and clean the area around the prongs of the plug once a year or more.

A fire may occur when dust lies on this area.

3) Main Service Parts for Safety

- The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly. If these parts are shorted circuit and/or made their functions out, they may burn down, for instance, and may result in fatal accidents. Do not allow a short circuit to occur. Do not use the parts not recommended by Toshiba TEC Corporation.

4) Cautionary Labels

- During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the power cord during service”, “Hot area”, “Laser warning label” etc. to see if there is any dirt on their surface and whether they are properly stuck to the equipment.

5) Disposition of Consumable Parts, Packing Materials, Used Batteries and RAM-ICs

- Regarding the recovery and disposal of the equipment, supplies, consumable parts, packing materials, used batteries and RAM-ICs including lithium batteries, follow the relevant local regulations or rules.

6) When parts are disassembled, reassembly is basically the reverse of disassembly unless

otherwise noted in this manual or other related documents. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, star washers in the wrong places.

7) Basically, the machine should not be operated with any parts removed or disassembled.

8) Precautions against Static Electricity

- The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband, because the ICs on it may become damaged due to static electricity.

Caution:

Before using the wristband, pull out the power cord plug of the equipment and make sure that there are no uninsulated charged objects in the vicinity.

Caution: Dispose of used batteries and RAM-ICs including lithium batteries according to this manual.

Attention: Se débarrasser de batteries et RAM-ICs usés y compris les batteries en lithium selon ce manuel.

Vorsicht:

Entsorgung des gebrauchten Batterien und RAM-ICs (inklusive der Lithium-Batterie) nach diessem Handbuch.

CONTENTS

GD-1150/1151/1200/1201/1160/1260

1. SPECIFICATIONS AND OUTLINE OF SYSTEM ......................................................... 1-1

1.1 FAX Options ........................................................................................................................ 1-1

1.2 Specifications....................................................................................................................... 1-2

1.3 Features .............................................................................................................................. 1-5

1.4 Accessories and Parts ......................................................................................................... 1-7

1.5 Options ................................................................................................................................ 1-8

1.6 System List ........................................................................................................................ 1-10

1.7 Units and Components ...................................................................................................... 1-15

1.8 Layout of PC Boards.......................................................................................................... 1-16

2. LSU-RELATED FUNCTIONS ....................................................................................... 2-1

2.1 Recording Mode .................................................................................................................. 2-1

2.2 Recording Paper Selection Algorithm and Printing Algorithm ............................................. 2-2

2.2.1 Recording paper selection algorithm ........................................................................ 2-2

2.2.2 Printing algorithm ..................................................................................................... 2-2

2.2.3 Setting for the split recording.................................................................................... 2-6

2.3 Recording Paper and Function ............................................................................................ 2-7

2.3.1 Table of the recording paper selection modes ......................................................... 2-8

2.3.2 Others....................................................................................................................... 2-8

2.4 Energy Saver Mode ............................................................................................................. 2-9

2.5 Memory Reception............................................................................................................. 2-10

3. DIALING/COMMUNICATION CONTROL..................................................................... 3-1

3.1 Circuit Connection and Procedure to Change Mode ........................................................... 3-1

3.1.1 Dial call-up transmission to a telephone circuit ........................................................ 3-1

3.1.2 Selection of the communication mode ..................................................................... 3-2

3.1.3 Procedure to select the transmission mode ............................................................. 3-2

3.2 Signaling System Diagram and Signal Forms ..................................................................... 3-3

3.2.1 Circuit control signals ............................................................................................... 3-3

3.2.2 Communication with the binary signals .................................................................... 3-4

3.2.3 V.8/V.34 communication sequence........................................................................ 3-13

3.3 FAX Automatic Switching .................................................................................................. 3-26

3.3.1 General functions ................................................................................................... 3-26

3.3.2 TEL mode............................................................................................................... 3-26

3.3.3 FAX mode .............................................................................................................. 3-26

4. ELECTRICAL CIRCUITS .............................................................................................. 4-1

4.1 Configuration ....................................................................................................................... 4-1

4.2 Description of Circuits.......................................................................................................... 4-5

4.2.1 Configuration ............................................................................................................ 4-5

4.2.2 Line path switching control circuit............................................................................. 4-7

4.2.3 Dial pulse generation circuit ..................................................................................... 4-9

4.2.4 Line current detection circuit .................................................................................. 4-11

4.2.5 CI detection circuit.................................................................................................. 4-13

4.2.6 Line monitor circuit ................................................................................................. 4-15

4.3 PC Boards ......................................................................................................................... 4-18

5. INSTALLATION ............................................................................................................ 5-1

5.1 Explanation to the Users...................................................................................................... 5-1


1

05/06

GD-1150/1151/1200/1201/1160/1260

CONTENTS

GD-1150/1151/1200/1201/1160/1260

CONTENTS

2


1. SPECIFICATIONS AND OUTLINE OF SYSTEM

1.1

FAX Options

e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283 can be used as a FAX by installing the FAX unit (GD-1150/1151).

e-STUDIO281c/351c/451c/352/353/452/453 can be used as a FAX by installing the FAX unit (GD-

1200/1201).

Some options can be added when the FAX unit is installed or to extend the FAX functions ( P. 1-8

"1.5 Options").

Be sure to use the FAX unit and the 2nd line for the FAX board only in the following combinations.

FAX unit

GD-1150

GD-1151

GD-1200

GD-1201

2nd line for FAX board

GD-1160

GD-1260

GD-1160

GD-1260

1


1 - 1

08/03

GD-1150/1151/1200/1201/1160/1260

SPECIFICATIONS AND OUTLINE OF SYSTEM

1.2

Specifications

1) Main system

- Type

Desktop type transceiver

- Operation

Transmission Manual/Automatic

Reception Manual/Automatic

2) Scanner

<Scanning density> [ ]: at rotation transmission

- Horizontal direction

16 lines/mm, 8 lines/mm

[15.4 lines/mm, 7.7 lines/mm, 3.85 lines/mm]

- Vertical direction

15.4 lines/mm, 7.7 lines/mm, 3.85 lines/mm

[16 lines/mm, 8 lines/mm]

- Combination

U-Fine: 16 x 15.4 lines/mm [15.4 x 16 lines/mm]

Semi-U-Fine:8 x 15.4 lines/mm [15.4 x 8 lines/mm]

Note:

Operation from the panel is automatically converted at the receiving capability of “U-Fine” combination.

Fine:

Normal:

8 x 7.7 lines/mm [7.7 x 8 lines/mm]

8 x 3.85 lines/mm [3.85 x 8 lines/mm]

- Effective scanning area

A

2

Original size

A4

B4

A3

FOLIO

LT

LG

LD

GD-1150/1151/1200/1201/1160/1260


Scanning direction

3

B

3 2.5

(Mechanical system error ±2 mm included)

A

210

364

420

330

216

355.6

431.8

B

204.5

358.5

414.5

324.5

210.5

350.1

426.3

(mm)


1 - 2

3) Transmission system

Circuits to be used: Subscriber line/FAX communication network (G3)

- Calling automatic transmission (including the sequential multi-address transmission)

- Calling automatic reception (polling reception)

- Called automatic transmission (polling transmission)

- Called automatic reception

- Calling manual transmission

- Calling manual reception

- Called manual transmission

- Called manual reception

Communication mode

High-speed mode (Toshiba original procedure mode)

G3 mode

ECM (Error Correction Mode)

Circuit carrier link equalization function

Embedded

Output level

–16 dBm to –8 dBm (The setting can be changed by “1 dB”.)

Input level

–43 dBm to 0 dBm

(Level –55 dBm or lower cannot be detected)

Specifications of the communication mode

High-speed mode

(Toshiba original procedure mode)

Horizontal scanning density

Vertical scanning density

Encoding system

Minimum transmission time for 1 line

Transmission speed

(image signal) and modulation method

8 dots/mm

300 dpi (Reception only)

16 dots/mm

3.85 lines/mm

7.7 lines/mm

300 dpi (Reception only)

15.4 lines/mm

MH/MR/MMR/JBIG

2.5 ms

14.4 k/12 k/9600

7200/4800/2400 bps

Conformance to V.17/V.29/V.27 ter

Control signal

Procedure to control the transmission

300 bps

V.21

Toshiba original procedure

G3 mode ECM

Same as on the left Same as on the left


MH/MR MH/MR/MMR/JBIG


Same as on the left 33.6 k/31.2 k/28.8 k/

26.4 k/24 k/21.6 k/

19.2 k/16.8 k/14.4 k/

12 k/9600/7200/

4800/2400 bps

Same as on the left 2400/1200/600/

300 bps

V.34/V.8/V.21

T.30 conformance Same as on the left

1


1 - 3

GD-1150/1151/1200/1201/1160/1260


4) Recording paper

- Recording method

Electrophotographic recording method by LSU (Laser Scanning Unit)

- Horizontal printing density

24 lines/mm (96 lines/mm with the smoothing processing)

[23.1 lines/mm (92.4 lines/mm with the smoothing processing)]

- Vertical printing density

23.1 lines/mm (24 lines/mm with the smoothing processing)

- Recording paper size and the effective printing area

Paper size

A5-R

B5-R

B5

A4-R

A4

B4

A3

FOLIO

ST-R

LT-R

LT

LG

LD

COMP

Dimension (width x length)

148 x 210

182 x 257

257 x 182

210 x 297

297 x 210

257 x 364

297 x 420

210 x 330

139.7 x 216 (5.5 x 8.5)

216 x 279.4 (8.5 x 11)

279.4 x 216 (11 x 8.5)

216 x 355.6 (8.5 x 14)

279.4 x 431.8 (11 x 17)

257 x 356 (10.125 x 14)

Unit: mm (inch)

Printing area

143 x 204.5

177 x 251.5

252 x 176.5

205 x 291.5

292 x 204.5

252 x 358.5

292 x 414.5

205 x 324.5

134.7 x 210.5

211 x 273.9

274.4 x 210.5

211 x 350.1

274.4 x 426.3

252 x 350.5

GD-1150/1151/1200/1201/1160/1260


1 - 4


1.3

Features

• A3/LD scanning

Scans data across A3/LD width and transmits in A3/LD actual size.

• High-speed scanning

Inputs an A4/LT-size transmitted document in about 0.7 seconds (A4/LT document transmitted widthwise).

• High-speed transmission

33.6 Kbps high speed modem

Toshiba original high-speed communication modes EX and HS

JBIG encoding system

• Dual Access

- FAX transmission

There are two types of FAX transmission: Page-by-page direct transmission and memory transmission that all pages are stored in the memory before being transmitted.

- FAX reception

Basically, all pages are input in the memory before being output. This reduces the time that the

FAX communication occupies the machine, making Dual Access between the copying/faxing and printing operation possible.

Namely, the followings are possible:

- Memory input during the memory transmission

- Memory input during the memory reception

- Copying during the memory transmission

- Reception during the copying

- Reception during the memory output

- Reception during the list output

• Laser printing on plain paper

Printing is made on the standard size paper (A3/LD, B4/COMP, A4/LT/LG, A4-R/LT-R, B5, B5-R,

FOLIO, and A5-R/ST-R) with the laser system.

• Gradation

256 tones, error diffusion method

• Memory communication function

Image data can be stored in the HDD. In the delayed transmission, image data read from an original are stored in the memory, then sent when the specified time comes.

Other memory functions: multi transmission, memory reception, ECM communication, etc.

• Smoothing

The smoothing process is applied to the received images so that they are changed from 8 × 3.85,

8 × 7.7, 8 × 15.4 or 16 × 15.4 to 24 × 92.4 (equivalent to 600 × 2400dpi), then printed out.

• Editing function

Duplex transmission and duplex printing are possible.

• FAX data file storage capacity

360 MB file storage capacity is added (for transmission: 240 MB, for reception: 120 MB)

Note:

Note: For hard drivers, GB means 1 billion bytes.

© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved GD-1150/1151/1200/1201/1160/1260


1 - 5

1

• Phone Book (1,000 addresses)

Up to 1,000 addresses can be registered in the Phone Book using the large LCD control panel.

• Multi-address transmission function

Data are sent to multiple addresses (400 destinations) in sequence in a single operation.

There are three ways to choose/enter the address

- Choose from the Phone Book (up to 400 destinations)

- Direct dialing (up to 400 destinations)

- Mix operation (Phone Book, Direct dialing, Group destinations: up to 400 destinations)

• Memory reception function

When the recording paper has run out or a paper jam has occurred, the memory receives and stores the data.

• Auto-dialing function

- Delayed dialing

Documents are transmitted automatically to the preset number at the preset time.

- Redialing

When the receiving side is busy during the automatic dialing, the machine keeps dialing at a fixed interval for a specified number of times.

• Receiving tone/completion tone

Sound notifies that the reception of a FAX document or printing of a received document has been completed.

• List output

The following data stored in the RAM can be printed out

- Phone book information

- Function list

- Transmission journal

- Reception journal

- Memory transmission report

- Power failure list etc.

• Power saver mode

During hours in which the reception amount is small, the weekly timer works to shut off the main power and the heater power to save power consumption.

• Drawer selection

It is possible to choose a drawer on to whose paper the received images are to be printed.

[Options]

• 2nd line

One extra line can be added by installing the 2nd line unit (option).

GD-1150/1151/1200/1201/1160/1260


1 - 6


1.4

Accessories and Parts

The following accessories and parts come with the FAX unit:

Accessory Qty

Operator’s manual (for facsimile function)

Modular cord (2 m)

Unpacking instruction

1 pc.

1 pc.

1 set

Parts

Fax unit

SG3 label

FCC Part 68 label (U.S.A.): NA only

IC label (Canada): NA only

DTS label (EU): EU only

Teleprompt label (New Zealand): AU only

Notice to users label (New Zealand): AU only

Screw

Ground plate

Qty

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

4 pc.

1 pc.

* Apply the each label to the specified positions following the Unpacking/Setup Instruction.

1


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04/06

GD-1150/1151/1200/1201/1160/1260


1.5

Options

Extends the FAX functions when the FAX unit is installed.

e-STUDIO3511/4511/350/450

Option

Feeds originals Reversing Automatic

Document Feeder (RADF)

Finisher

Function

Sorts out documents to be output for the

FAX/copying operation

2nd line for FAX board

Job Separator

Adds one extra communication line



Model

MR-3015

MJ-1022

(e-STUDIO3511/350)

MJ-1023/1024

GD-1160NA/TW/EU/C

MJ-5004 e-STUDIO230/280

Option

Reversing Automatic


Finisher


Job Separator

Feeds originals

Function






Model

MR-3016

MJ-1022

MJ-1025

GD-1160NA/TW/EU/C

MJ-5004 e-STUDIO281c/351c/451c

Option



Finisher

Function



2nd line for FAX board Adds one extra communication line

Model

MR-3018

MJ-1022

(e-STUDIO281c/351c)

MJ-1023/1024

GD-1160NA/TW/EU-N/C

GD-1260NA/TW/EU-N/C

GD-1150/1151/1200/1201/1160/1260


1 - 8

08/12


e-STUDIO352/353/452/453

Option



Finisher

Function



2nd line for FAX board Adds one extra communication line

Job Separator Sorts out documents to be output for the


Model

MR-3018

MJ-1022/1101

(e-STUDIO352)

MJ-1023/1024

GD-1160NA/TW/EU/C

GD-1260NA/TW/EU/C

MJ-5004 e-STUDIO202L/203L/232/233/282/283 series

Option Function



Finisher





Job Separator Sorts out documents to be output for the


Model

MR-3020

MJ-1022

MJ-1025

GD-1160NA/TW/EU/C

GD-1260NA/TW/EU/C

MJ-5004

1


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08/03

GD-1150/1151/1200/1201/1160/1260


1.6

System List

e-STUDIO3511/4511/350/450

Finisher

(Hanging type)

MJ-1022 e-STUDIO3511/350 only

Finisher

(Console type)

MJ-1023

Finisher

(Console saddle stitch type)

MJ-1024

Reversing Automatic

Document Feeder

MR-3015

Bridge Kit

KN-3511 e-STUDIO3511/4511 only

Job Separator


FAX Board

GD-1150NA/TW/EU

/AU/AS/C

2nd Line for FAX Board

GD-1160NA/TW/EU/C

Bridge Kit

KN-3520 e-STUDIO350/450 only

Drawer Module

MY-1021

Paper Feed

Pedestal (PFP)

KD-1011

Fig. 1-1

Large Capacity

Feeder (LCF)

KD-1012 A4/LT

Desk

MH-1700

GD-1150/1151/1200/1201/1160/1260


1 - 10


e-STUDIO230/280

Finisher

(Hanging type)

MJ-1022

Reversing Automatic

Document Feeder

MR-3016

Finisher


MJ-1025

Bridge Kit

KN-3520

Job Separator

MJ-5004

FAX Board

GD-1150NA/TW/EU

/AU/AS/C


GD-1160NA/TW/EU/C

Drawer Module

MY-1021

Paper Feed

Pedestal (PFP)

KD-1011

Large Capacity

Feeder (LCF)

KD-1012 A4/LT

Fig. 1-2

Desk

MH-1700

1


1 - 11

GD-1150/1151/1200/1201/1160/1260


e-STUDIO281c/351c/451c

Finisher

(Hanging type)

MJ-1022 e-STUDIO281c/351c only

Finisher

(Console type)

MJ-1023

Finisher


MJ-1024

Bridge Kit

KN-3511

Reversing Automatic

Document Feeder

MR-3018

FAX Board

GD-1200

2nd Line for

FAX Board

GD-1160

FAX Board

GD-1201

2nd Line for

FAX Board

GD-1260

Drawer Module

MY-1021

Paper Feed

Pedestal (PFP)

KD-1011

Large Capacity

Feeder (LCF)

KD-1012 A4/LT

Fig. 1-3

Desk

MH-1700

GD-1150/1151/1200/1201/1160/1260


1 - 12

08/12


e-STUDIO352/353/452/453

Finisher

(Hanging type)


Reversing Automatic

Document Feeder

MR-3018

Finisher

(Console type)

MJ-1023

Finisher


MJ-1024

Bridge Kit

KN-3520

Finisher

(Console type)

MJ-1101

Drawer Module

MY-1021

Paper Feed

Pedestal (PFP)

KD-1011

Job Separator

MJ-5004

Large Capacity

Feeder (LCF)

KD-1012 A4/LT

Fig. 1-4

Desk

MH-1700

FAX Board

GD-1200NA/TW/EU

/AU/AS/C/KR


GD-1160NA/TW/EU/C

FAX Board

GD-1201NA/TW/EU

/AU/AS/C/KR


GD-1260NA/TW/EU/C

1


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08/03

GD-1150/1151/1200/1201/1160/1260


e-STUDIO202L/203L/232/233/282/283 series

Finisher

(Hanging type)

MJ-1022

Reversing Automatic

Document Feeder

MR-3020

Automatic

Duplexing Unit

MD-0102

Finisher


MJ-1025

Bridge Kit

KN-3520

Job Separator

MJ-5004

Drawer Module

MY-1021

Paper Feed

Pedestal (PFP)

KD-1011

Large Capacity

Feeder (LCF)

KD-1012 A4/LT

Fig. 1-5

FAX Board

GD-1150NA/TW/EU

/AU/AS/C/KR


GD-1160NA/TW/EU/C

FAX Board

GD-1151NA/TW/EU

/AU/AS/C/KR


GD-1260NA/TW/EU/C

Desk

MH-1700

GD-1150/1151/1200/1201/1160/1260


1 - 14

08/03


1.7

Units and Components

Control panel

1st Drawer

2nd Drawer

Fig. 1-6

Reversing Automatic


1

Fig. 1-7


1 - 15

GD-1150/1151/1200/1201/1160/1260


1.8

Layout of PC Boards

e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283

MDM

FAX

NCU

Symbol

FAX

MDM

NCU

Fig. 1-8 Rear side of the equipment

Name

FAX control board

Telephone circuit control board


Function

Control the FAX function

Controls dialing for the analog circuit (for 2nd line)

Controls dialing for the analog circuit (Lower board: standard 1st line, Upper board: for 2nd line)

Remarks

GD-1150/1151/1200/1201/1160/1260


1 - 16

08/03


e-STUDIO281c/351c/451c, e-STUDIO352/353/452/453

MDM

FAX

FAX PWR

NCU

Fig. 1-9 Rear side of the equipment

Symbol

FAX

MDM

NCU

FAX PWR

Name

FAX control board



FAX power board

Function

Controls the FAX function

Controls dialing for the analog circuit (for 2nd line)

Controls dialing for the analog circuit (Lower board: standard 1st line, Upper board: for 2nd line)

Supplies the power (-12V, +24V) of FAX

Remarks

1


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2. LSU-RELATED FUNCTIONS

2.1

Recording Mode

This machine offers various printing modes such as the selection of the applicable recording paper and the recording method, etc. to meet users’ needs. To take full advantage of these features, it is important to understand the concepts of the recording paper selection algorithm and printing algorithm as described in 2. 2.

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LSU-RELATED FUNCTIONS

2.2

Recording Paper Selection Algorithm and Printing Algorithm

Before printing the received image, the preset settings are evaluated in the order of the following 1) and

2), and the printing is performed based on the result.

1) Recording paper selection algorithm

- Basically, the received image is printed on a sheet of paper of the same size as the original.

However, if this size is not available, this algorithm determines on which size of recording paper the output should be made. (Actual Size Mode/Free Mode)

2) Printing algorithm

- Determines how the received image is to be printed. (Discard printing/Vertical reduction printing/

Regular size reduction printing/Split printing)

2.2.1

Recording paper selection algorithm

It is possible to distinguish the size of each received image (A3(LD)/B4(LG)/A4(LT)/B5/A5). Basically, recording paper of the same size as the original is used for printing. If recording paper of the size is not available, this algorithm selects paper of another size according to the setting in the Setting Mode.

1) Actual Size Mode (13-517: 0)

- Printing is performed when regular size reduction is not applied to the received image. In this mode, an A4/LT received image is printed on a B4 recording paper.

2) Free Mode (13-517: 1)

- Printing is performed on any available recording paper.

2.2.2

Printing algorithm

Recording paper has its effective printing area. Even if the size of the original paper and the recording paper are the same, the length of the original is normally longer.

This means that the received image would be divided onto two sheets. To prevent this, the printing algorithm works as described in the following pages.

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04/06


Discard / Vertical reduction / Regular size reduction / Split printing flow chart

START

Recording paper of the same size as the original's available?

Yes

No

1

Smaller size paper available?

No

Yes

Larger size paper available?

Yes

No

Recording paper run out

Received image fitsin the effective printing area of the recording paper?

Yes

No

Normal (actualsize) printing

Regular size reduction function

ON?

Yes

No

Image not output

Regular size reduction printing

Use the short length paper?

(See the note below.)

No

Yes

No

Discard printing function

ON?

Yes

Regular size reduction function ON?

Yes

No


Image not output

Blank space *within the discard parameter?

Yes

No

Discard printing

(actual size)

1

Vertical reduction function ON?

No

Yes

Reduction ratio "R" calculated from the actual image data.

Regular size reduction function

ON?

No

Yes


Image not output

"R" within the max.

reduction ratio?

No

Yes

Vertical reduction printing

Note: Short length paper are the recording paper of A4/B5/A5/LT/

ST against A3/B4/A4/LD/LT size originals respectively.

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1) Discard printing

- Since the trailing edge area of the original is normally blank, this blank area is cut off to allow the image fit in one sheet in this mode. Image reduction is not performed.

- Maximum discarding amount:

0 mm: Discard not performed

10 mm: Corresponding to the inside the TTI

18 mm: Corresponding to the outside the TTI 1

22 mm: Corresponding to the outside the TTI 2

34 mm: A4

→ LT conversion

(TTI: Transmission Terminal Identifier)

When the discard function is ON (13–378:1):

Actual size recording is performed with no vertical reduction nor division. The original image is recorded as it is. Namely, the data exceeding the effective printing area are discarded.

A

A

B

Area B is discarded.

A : Effective printing length

B : Recording data length outside the

effective printing area

(A + B = Recording data length)

Discard parameter (13-375: 0 to 4)

The following parameters are available:

Discard function Length of B (Discard parameter)

OFF

ON

0 mm

10 mm

18 mm

22 mm

34 mm

Set value

0

1

2

3

4

Reference: These parameters should be set by the service technician (in the FAX Function Mode).

2) Vertical reduction printing (13–377: 0)

- The recording data length is reduced so that the image fits in the recording paper.

The data can be reduced up to 90/75%, and the machine automatically selects the appropriate ratio.

3) Regular size reduction printing (13–517: 1)

- When the discard and vertical reduction printing cannot be applied to the received image, and any of the combinations A3

→ B4, A3 → A4, B4 → A4, B4 → B5, B4 → A5, A4 → B5, A4 → A5,

COMP

→ LT, COMP → ST, LD → COMP, LD → LG/LT, LD → ST, LT → ST, FOLIO → B5, FOLIO

→ A5 is satisfied, the regular size reduction printing is performed.

In case that the recording data length is within the effective printing length A, but the recording paper of the same size as the original’s or larger size is not available;

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A

A × reduction ratio

B × reduction ratio

B

A3

B4

A4

LD

LT

B4, A3

A4, B4

A5 , COMP

COMP, LD

ST, FOLIO

A4

B5, B4 A5, A4

LT, COMP

LG/LT, LD

B5, FOLIO

B5,

ST,

ST,

A5

In case that the recording data length exceeds the effective printing length A, the vertical reduction printing is not applicable and larger size recording paper is not available;

(In the following example, A4/LT original was sent but the recording length exceeds A4 size and the data do not fit in A4/LT even if the vertical reduction is performed. The reduction B4

→ A4 or

A3

→ A4 is applied in this case.)

2

C

A

B

D

A × reduction ratio

C × reduction ratio

B × reduction ratio

D × reduction ratio


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4) Split printing

When the recording data do not fit in a recording paper even if vertical reduction is performed for the recording data length (the recording data length is exceeding the effective printing length of the largest recording paper in the drawer installed in the machine), the recording data are divided onto two sheets while vertical reduction is performed.

A

B

A× vertical reduction ratio

B × vertical reduction ratio

2.2.3

Setting for the split recording

1) Split recording onto A4/B5/A5/ST

Set as to whether split recording onto the short length paper (A4/B5/A5/ST) is to be performed or not.

When this function is disabled, split recording for A3/B4/A4 data onto A3/B4/A4/LG/LT recording paper is not performed.

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2.3

Recording Paper and Function

The size of the recording paper on which the received image data are printed is determined according to the presence/absence of the recording paper and the above-mentioned function settings. Relation between the recording paper size and the function settings is described in this section.

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2.3.1

Table of the recording paper selection modes

<Selection of recording paper: in case the recording data length do not exceed the effective recording length of the recording paper>

Recording data size

A4-R B 4 A3

A4 B 5 A5

LT-R

LT

LG COMP LD

S T

FOLIO

1

A4-R B 4 A3

A4 B 5

A5 LT-R

LT

LG COMP LD S T FOLIO

2

A4

3

FOLIO

A3

*2

B 4

*1

A4-R B5-R A4-R

LT

LT-R COMP LD COMP

*1

LT-R B 4

*2

A4-R

*1

A4-R

*1

A3 B 4

A4

LG

*2

LD LD LT-R

*1

LG

*1

LT

A3

*2

4

B 4

*2

A4

*1

A4

*1

FOLIO

A4

*1

FOLIO COMP

*2

LG

*1

LT-R

*1

LT

*1

LT-R

*1

LG A4-R

*1

5

A3

*2

FOLIO

*1

FOLIO

*1

B 4

*1

A4-R

*1

B 5

*2

LD

*2

COMP

*1

LT

*1

LG

*1

LT

*1

COMP

*2

A4

*1

6

B5-R

*1

B5-R

*1

7

B 5

*1

B 5

*1

B5-R

*1

A3

*2

B5-R

*2

ST-R ST-R

*1 *1

B 5

*1

FOLIO

*1

B 4

*2

LD

*2

B5-R

*1

B 5

*1

8

A5-R A5-R A5-R A3

*1 *1 *1 *2

*1: Can be used when the regular size reduction function is ON (when it is OFF, the data are stored in the memory.)

*2: When the data are output in the primary scanning direction, it is printed in the center of the recording paper.

2.3.2

Others

1) For the users with the TTI outside setting, it is recommended to set the discard parameter to 18 mm.

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2.4

Energy Saver Mode

The fuser unit, main power and power supply for the control panel can be shut off during a specified period of time such as night time that the machine is in the ready mode, using a weekly timer function of the equipment. When a FAX is received in the Energy Saver Mode, the fuser unit, main power and power supply for the control panel are automatically turned ON. Printing is then started when the machine reaches the specified temperature. The Energy Saver Mode is useful for hours in which the amount of communication is small and immediate printing is not necessary.

The setting of the Energy Saver Mode and time (start time, end time) are made on the USER FUNC-

TIONS screen. (Default setting is made by the weekly-timer function of the equipment.)

Energy Saver Mode

Auto Power

Save Mode

How to enter the mode

Automatically

Sleep Mode Automatically or by pressing the

[ENERGY SAVER] button for 2 seconds

Timer setting

Can be set in the

USER FUNCTIONS

Screen.

Can be set in the

USER FUNCTIONS

Screen.

How to cancel the mode

Returns to the default screen by receiving FAX document, or by pressing the [START] button

Returns to the FAX screen by pressing the [FAX] button

Returns to the default screen by receiving FAX document, or by pressing the [START] button

Returns to the FAX screen by pressing the [FAX] button

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2.5

Memory Reception

Basically, the receiving FAX data are once stored in the HDD, then the data are printed out after the reception process is finished.

The memory reception is performed until the 120 M byte HDD becomes full.

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3. DIALING/COMMUNICATION CONTROL

3.1

Circuit Connection and Procedure to Change Mode

3.1.1

Dial call-up transmission to a telephone circuit

START

Detecting a calling signal?

NO

YES

Detecting an off-hook signal?

NO

YES

DC circuit closed

After detecting the dial tone, or 3.3 seconds elapsed

Selection signal sent out

END

Standby state

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DIALING/COMMUNICATION CONTROL

3.1.2

Selection of the communication mode

This machine has three types of communication mode. The mode to be used is determined according to the combination of the types of the circuits and communication and available function of the other side’s machine.

Telephone circuit

Communication mode

Toshiba original procedure ECM

{ {

G3

{

3.1.3

Procedure to select the transmission mode

START

Other side machine has the

Toshiba original procedure mode?

*1

YES

NO

Communication using the

Toshiba original procedure

Other side machine has

ECM mode?

YES

ECM communication

NO

Other side machine has G3 mode?

YES

G3 communication

*1

:

This step is only checked when the other side machine has CRP2 (+ CRP1) or when the transmission is started by the CRP calling. (The first transmission to the other side with CRP1 only is performed in the ECM mode.)

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3.2

Signaling System Diagram and Signal Forms

3.2.1

Circuit control signals

The following circuit control signals are used in the binary and tonal procedures.

• Circuit control signals

CED Called station identification

Indicates that the sender is a FAX machine in the automatic called mode. (*1)

CNG Calling tone

Indicates that the sender is a FAX machine in the automatic calling mode. (*1)

*1: This signal can be sent manually.

• Signal form

Signal name

CED

Signal form

f

Signal form

f: 2100 ±15 Hz t: 2.6 - 4.0 sec t

CNG f

L f f: 1100 ±38 Hz t: 0.5 sec ±15%

(L: 3 sec) t t

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3.2.2

Communication with the binary signals

In the Toshiba original procedure/G3 modes, communication is performed with the binary procedure as follows.

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(1) Binary procedure

• Transmission and reception in the Toshiba original procedure/G3 modes

Transmtter Receiver

Mode change pos s i ble*

Informing that there is the next page

CED

NSF•CSI•DIS

NSS•TSI•DCS

Training

TCF

CFR

Image signal

EOM

MCF

NSF•CSI•DIS

NSS•TSI•DCS

Training

TCF

CFR

Image signal

MPS

MCF

Image signal

MCF

DCN

* Mode change is possible only for the original set manually.

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• Transmission and reception in the ECM mode

ECM (Error Correction Mode) conforms to T.30.

When an error has occurred to the received image data, the receiving station informs the sending station of the occurrence of the error, and the sending station sends the image data again.

Transmtter

Only error frame retransmitted

Page 1 completed

Page 2 completed

CED

NSF•CSI•DIS

NSS•TSI•DCS

Training

TCF

CFR

Image signal

PPS NULL

MCF

Image signal

PPS MPS

PPR

Image signal retransmitted

PPS MPS

MCF

Image signal

PPS EOP

MCF

DCN

Receiver

256 frames received

Error occurred

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• Cancellation during the transmission

If the [STOP] button is pressed during the direct transmission or memory input, the display to confirm the cancellation appears. The communication is finished normally regardless of the presence/absence of the next page or mode changes by pressing the [STOP] button.

If the [STOP] button is pressed anytime except during the transmission of the image data,

DCN is forcibly sent to terminate the communication.

Press the [JOB STATUS] button, and select the transmission job to cancel, then press the

[CANCEL] button on the LCD display to cancel the memory transmission or polling transmission.

Transmtter Receiver

CED

NSF•CSI•DIS

NSS•TSI•DCS

Training

TCF

CFR

[JOB STATUS] button

[CANCEL] button Image signal

EOP

MCF

DCN

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(2) Binary signals

NSF Non-Standard Facility

Informs that the receiving station (machine) has a non-standard facility.

NSC

NSS

CSI

CIG

TSI

DIS

DTC

DCS

SUB

SEP

PWD

CFR

FTT

EOM

MPS

EOP

MCF

RTN

Non-Standard Facility Command

Command to transmit using the non-standard facility which is selected corresponding to

NSF (i.e., Polling etc.).

Non-Standard Facility Setup

Command to transmit using the non-standard facility which is selected corresponding to

NSF or NSC.

Called Subscriber Identification

Provides the telephone number of the called station. Used to check the identity of the called station.

Calling Subscriber Identification

Provides the telephone number of the calling station. Used to check the identity of the calling station (Polling, etc.).

Transmitting Station Identification

Provides the telephone number of transmitting station. Used to check the identity of the transmitting station.

Digital Identification Signal

Informs that the receiving station (machine) has a standard facility (G3/G2).

Digital Transmit Command

Command to transmit using the standard facility which is selected corresponding to DIS

(i.e., Polling, etc.).

Digital Command Signal

Commands to transmit using the standard facility which is selected corresponding to DIS or

DTC.

Sub-address

Indicates that the FIF information is a sub-address in the domain on the call-in side.

Select Polling

Indicates that the FIF information is a sub-address for the polling mode.

Password

Indicates that the FIF information is a password for the polling mode in a reception.

Indicates that the FIF information is a password for transmission in a transmission.

Confirmation of Reception

Informs that the FAX is ready to receive data.

Failure to Train

Informs that the TCF signal has not received correctly and requests the re-training.

End of Message

Informs that the the 1st page has been transmitted and there is the next page; command to return to the beginning of the phase B.

Multi-page Signal

Informs that the 1st page has been transmitted and there is the next page; command to return to the beginning of the phase C.

End of Procedure

Informs that a document has been transmitted and there is no more pages.

Message Confirmation

A reply to MPS, EOM or EOP; informing that image signals have been received correctly and the FAX is ready to receive data.

Retrain Negative

Informs that a document has not been received correctly; requests for the retraining or phase synchronization to receive the next page.

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PIP

PIN

Procedure Interrupt Positive

Informs that the image signals have been received correctly and requests the operator’s reply by telephone or to return to the beginning of the phase B to continue the communication (i.e., CALL Request, etc.).

Procedure Interrupt Negative

Informs that the image signals have not been received correctly and requests for operator’s reply by telephone or to return to the beginning of the phase B to continue the communication.

PRI-EOM Procedure Interrupt EOM

Command similar to EOM. Operation by operator is necessary.

PRI-MPS Procedure Interrupt MPS

Command similar to MPS. Operation by operator is necessary.

PRI-EOP Procedure Interrupt EOP

Command similar to EOP. Operation by operator is necessary.

DCN Disconnect

Command to disconnect the FAX line and to connect the telephone line. Reply from the other side is not necessary.

RR

RNR

Receive Ready

Informs that the FAX is ready to receive documents and requests for data to set the reception mode. (ECM mode)

Receive Not Ready

Informs that the FAX is not in the receivable state. (ECM mode)

PPR

PPS

CTC

CTR

Partial Page Request

Informs that a part of page (ECM block) has not been received correctly. The number of the frame needs to be corrected is informed by the FIF. (EC mode)

Partial Page Signal

Informs that a part of page (ECM block) or one page has been transmitted. (EC mode)

Continue to Correct

Replies to the 4th PPR which requests to correct the image signal; informs that the transmitting station will continue to correct the frame data. (ECM mode)

Response for Continue to Correct

Replies to CTC and informs that the receiving station has received and accepted the CTC.

(EC mode)

EOR

ERR

RTP

CRP

End of Retransmission

Informs that the transmitting station has completed the correction of the error frame data

(binary signal) of the previous ECM block. (ECM mode)

Response for End Retransmission

Replies to EOR and requests to transmit the image signal of the next ECM block. (ECM mode)

Retrain Positive

Informs that the message has been received completely and that the subsequent message can be continued after receiving the synchronization signal and CFR signal.

Command Repeat

Requests to resend all the commands including optional frames because the preceding command has been received incorrectly.

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(3) Frame structure of binary signals

Each binary signal frame is comprised of the following sequence and fields. However, some binary signals do not have the FIF field inserted.

F F

Preample

A C FCF FIF FCS F

F : Flag sequence

Indicates the start or end of a frame. Also establishes the frame synchronization.

A : Address field

Informs the address.

C : Control field

Informs if this frame is the last one in this procedure.

FCF: FAX control field

Informs the type of the binary signal.

FIF: FAX information field

Informs FAX information such as the functions.

FCS: Frame check sequence

Checks if there was any error in the transmission from A to FIF.

• Format of F, A and C

F

A

C

b

1

0

1

1

b

2

1

1

1

b

3

1

1

0

* When this frame is the last frame, X = 1.

b

4

1

1

0

Format b

5

1

1 x

b

6

1

1

0

b

7

1

1

0

b

8

0

1

0

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• FCF format of each binary signal

0

0

1

1

1

1

0

1

0

0

1

0

1

1

0

0

0

0

1

0

1

1

1

0

1

1

0

0

1

1

0

0

0

0

1

b

2

0

EOM

MPS

EOP

MCF

RTN

PIP

PIN

PRI-EOM

PRI-MPS

PRI-EOP

DCN

RR

RNR

PPR

PPS

CTC

CTR

EOR

ERR

RTP

CRP

DTC

DCS

SUB

SEP

PWD(Rx)

PWD(Tx)

CFR

FTT

NSF

NSC

NSS

CSI

CIG

TSI

DIS

Format

Binary signal

x x x x x x x x x x x x x x x x x x x x x x x

1 x x

1

1 x x

0

0

1

1 x

b

1

0

• X = 1 for the station which received DIS.

• X = 0 for the station which received a response signal to DIS.

1

1

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

1

1

1

0

0

0

0

0

0

0

0

0

0

0

0

0

b

3

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

1

1

1

0

1

1

0

0

0

0

0

0

0

0

0

0

0

0

0

b

4

0

0

1

1

0

1

1

0

1

0

0

0

0

0

0

0

0

1

0

1

0

0

1

1

0

0

0

0

0

0

0

0

0

0

0

0

b

5

0

1

1

1

1

0

1

1

0

0

1

1

0

0

0

0

0

0

0

1

0

0

1

0

0

1

0

1

0

0

0

0

0

0

1

1

b

6

1

1

1

1

0

0

0

0

1

0

1

0

1

1

0

1

0

0

1

0

1

1

1

0

1

1

1

1

1

1

0

1

0

0

0

0

b

8

0

1

0

1

1

1

0

0

0

1

0

0

0

0

1

0

1

0

1

0

1

1

0

0

1

0

1

0

0

0

1

0

1

1

0

0

b

7

0

3


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(4) Training

The training is performed in the binary procedure to surely transmit the image signals.

• Training signal

The training signal is transmitted following the DCS signal at the modem speed specified by the DCS signal. Responding to this training signal, the receiving side adjusts the auto-equalizer.

• Format of the training signal

- 14.4 Kbps, 12 Kbps

Segment 1

Alternation of ABAB

106 msec

Segment 2 Segment 3 Segment 4

Equalizer adjustment pattern

1240 msec

Chain-store information sequence

27 msec

1393 msec

Scrambled binary data “1”

20 msec

TCF

- 9600 bps, 7200 bps

Segment 1 Segment 2 / Segment 3

V.29

No signal

20 msec

Segment 4

Repeating 2-state signal

(Binary)

53 msec+160 msec

253 msec

Scrambled data “1”

(Hexa or octal)

20 msec

TCF

- 4800 bps, 2400 bps

V.27ter

Segment 1Segment 2 Segment 3

Nonmodulated carrier

No signal

Segment 4

Continuous

180° phase inversion

(Binary)

0° to 180°

2-phase pattern

(Binary)

Segment 5

Scrambled data “1”

(Hexa or octal)

TCF

4,800 bps: 923 msec,

2,400 bps: 1158 msec

• TCF signal

An error may occur in the image data if the training is not performed correctly. The transmitting side sends a TCF signal and checks if any error occurs in image data before the image data communication to follow. When the receiving side detects an error in the TCF signal, it transmits an FTT signal to the transmitting side to request the retraining. When there is no error, the receiving side transmits a CFR signal.

The TCF signal transmits all zeros for 1.5 seconds at the same modem speed as that for the training signal.

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04/06


3.2.3

V.8/V.34 communication sequence

1) Outline

- V.8 is performed as a startup procedure to switch to V.34. V.8 can connect an existing facsimile machine to the equipment using a data modem or other V-series modems. The V.34 modem has a modem circuit previously recommended, allowing it to be also connected to the existing modems while they are upper compatible.

- New technologies such as the pre-emphasis technology *1 and the probing technology *2 are fully used. The pre-emphasis technology *1 not only speeds up the modulation, but also gains the S/N ratio. The probing technology examines the line characteristics and optimizes the modem for the line condition. Therefore, not only do these technologies speed up the transmission momentarily, but also the average speed of the process during the data transmission is increased.

- For V.8 and the pre/post-FAX transmission for V.34, the procedure is speeded up by the full duplex communication.

- Following 14 types of the image transmission speed are available: *3

33.6 kbps/31.2 kbps/28.8 kbps/26.4 kbps/24.0 kbps/21.6 kbps/19.2 kbps/16.8 kbps/14.4 kbps/

12.0 kbps/9.6 kbps/7.2 kbps/4.8 kbps/2.4 kbps

- The modulating speed (baud rate) *4 can be selected from 2,400, 3,000, 3,200 symbol/sec (mandatory), or 2,743, 2,800, 3,429 symbol/sec (option). The data rate can be set more accurately than the conventional modem.

*3

:

*4

:

*1

:

*2

:

A signal is sent while raising the output level in the high-frequency band in which the noise is relatively loud.

Tone signal called “Probing Tone” is sent for the receiver to examine the line characteristics of the line.

In the ITU-T Recommendation, it is described as “data rate”. “Image transmission speed” is the same as “data rate”.

In the ITU-T Recommendation, it is described as “symbol speed”. The “Symbol rate”,

“Modulating speed”, and “Baud rate” are the same thing. This machine cannot realize the speed of 2,743 symbol/sec.

Notes:

1. ECM is used in the V.34 procedure. If the setting for the ECM transmission/reception of the user data is set to “Not performed”, the V.8 procedure is not performed and the procedure is not switched to V.34. V.17 or lower is selected in this case.

2. When the transmission/reception speed is set to 14.4 kbps or slower, the V.8 procedure is not performed, and V.17 or lower is selected.

3. See “Late start (P3-20)” to move to the V. 8/V.34 procedure after starting with the V.21 procedure.

4. After the V.34 procedure is started, the fallback for the V.34 procedure is performed.

However, the fallback for the V.17 mode or lower mode is not performed.

3


3 - 13

04/06

GD-1150/1151/1200/1201/1160/1260


2) Standard procedure

Transmitter Receiver

Line closed

Network interaction

(Phase 1)

( P3-14)

The available modulation mode is in formed.

Each declares that it has V.34 capability. The procedure moves to V.34 in the phase 2.

Probing/Ranging

(Phase 2)

( P3-15)

After the information about the modem capability is exchanged, the receiver determines the modulation speed based on the result of reception of the probing signal which was sent by the transmitter.

To determine the image transmission speed, the transmitter sends a training signal.

Equalizer/Echo canceller training

(Phase 3)

( P3-16)

Final training

(Phase 4)

( P3-16)

The optimum image transmission speed is determined according to the training signal received.

The pre-FAX transmission which is the same as that for the normal T.30 is performed at

1,200 bps.

Control channel

( P3-17)

The training signal is sent with the determined parameter, then the image data are sent.

Primary channel

( P3-18)

Image data

( P3-18)

The post-FAX transmission which is the same as that for the normal T.30 is performed at

1,200 bps.

Communication end procedure

( P3-19)

Line opened

Line opened

GD-1150/1151/1200/1201/1160/1260


3 - 14

04/06


- Network interaction (Phase 1)

The V.8 procedure is performed as the startup procedure for the V.34 high-speed modem.

In the V.8 procedure, mainly the optimum modulation method (V series modem mode) that can be operated between the transmitter and receiver is determined.

Transmitter

Signal name

Calling tone

Abbreviation

CNG

Call Menu signal

CM terminator

Call Indicator signal

CM

CJ

CI

Function

1100 Hz tone signal specified by T.30 indicating the sender is a FAX machine in the automatic calling mode.

Remarks

-

Mainly indicates an available modulation method such as

V.21, V.27ter, V.29, V.17,

V.34, etc.

Modulated by V.21 (L) *1.

Transmission rate: 300 bps

Indicates the detection of the

JM signal or the termination of

CM signal.



Indicates the general communication functions. It is sent when the V.8 procedure is restarted.

For the late start only.

(P3-20)



Receiver

Signal name

Answer amplitude tone

Abbreviation

ANSam

Function

2100 Hz tone signal amplitude-modulated to 15 Hz.

Remarks

Tone equivalent to CED of the conventional machine.

Joint Menu signal JM Indicates the terminal type such as a FAX machine.

Response to a CM sent from the transmitter and informs available modulation method.

Modulated by V.21 (H) *1.


*1 V.21 (L) ..........Low frequency channel defined by the V.21 recommendation 1,080±100 Hz

(980 Hz: 1, 1,180 Hz: 0)

V.21 (H) ..........High frequency channel defined by the V.21 recommendation 1,750±100 Hz

(1,650 Hz: 1, 1,850 Hz: 0)

3


3 - 15

GD-1150/1151/1200/1201/1160/1260


- Probing/Ranging (Phase 2)

Examines the line characteristics and sets the parameters for the modulation related items such as the modulating speed.

Transmitter

Signal name

INFO sequence

Tone B

Tone

B

Line probing signal L1

Line probing signal L2

Abbreviation

INFO0c

B

B

L1

L2

Function

Informs the modem capability such as modulating speed and frequency transmission capability (two frequency bands (high and low) used to examine the line characteristics), and requests for adjusting.

Remarks


Synchronization between the modems by 1200 Hz tone signal

B

is a signal that shifts the phase B 180°.

Tone signal to analyze the line characteristics by probing

Probing is to examine the line characteristics.

Tone signal between 150

Hz and 3,750 Hz in units of

150 Hz

Receiver

Signal name

INFO sequence

Tone A

Tone

A

INFO sequence

Abbreviation

INFO0a

A

A

INFO0h

Function

Informs the modem capability such as the modulating speed and frequency transmission capability.

Synchronization between the modems by 2,400 Hz tone signal

Remarks


A

is a signal that shifts the phase A 180°.

Based on the analysis of the line probing signal sent from the transmitter, it informs the pre-emphasis filter and modulating speed to be used for the data transmission.


GD-1150/1151/1200/1201/1160/1260


3 - 16


- Equalizer and echo canceller training (Phase 3)

Training (adjustment) is performed according to the parameters set in the phase 2 to optimize the filters such as an equalizer.

Transmitter

Signal name

S signal

S

signal

PP signal

Abbreviation

S

S

PP

Function

Short training

TRN signal TRN

Used by the modem of the receiver to train the equalizer.

Used by the receiver to determine the transmission rate.

Remarks

S

is a signal made as the result of phase transition of S.

- Final training (Phase 4)

The settings such as the maximum value for the data rate, selection of the trellis encoder, and data rate which can be supported are made in this phase.

Transmitter/receiver

Signal name

PPh signal

Abbreviation

PPh

ALT signal

Modulation parameter

E sequence

ALT

MPh

E

Function

Used by the modem of the other side to train the equalizer.

-

Informs the parameters used for the image transmission such as maximum data signal rate and type of the trellis coding/pre-coding.

-

Remarks

20 bit sequence of “1”s in binary

3


3 - 17

GD-1150/1151/1200/1201/1160/1260


- Control channel

The conventional T.30 procedure is performed. The transmission rate is 1200 bps.

Transmitter

Signal name

Flag

Non-standard facilities setting

Transmitting Subscriber

ID

Digital Command Signal

-

Abbreviation

flags

NSS

TSI

DCS

1

Function

Maintains the synchronization.

Receives an NSF sent from the receiver. It selects the available mode from the received NSF, and specifies the mode for the reception.

7E (H)

Remarks

Informs the telephone number of the transmitter.

Specifies the mode that can be used for the communication.

Declares to switch to the highspeed procedure.

“1” is sent continuously.

Receiver

Signal name

Non-Standard Facilities

Called Subscriber ID

Digital Identification Signal

Flag

Abbreviation

NSF

CSI

DIS flags

Function

Informs the presence of the facilities other than those recommended by ITU-T, abbreviated user names, and manufacturer codes, etc.

Informs the telephone number of the receiver.

Informs the standard facilities recommended by ITU-T.


7E (H)

Remarks

Confirmation for Reception

Reference:

CFR Informs that the training of the modem is completed, and the receiver is ready to receive the image signal.

In the control channel, the frequency of the signals to be sent is different between the transmission and reception. The signal echoed back has never been misidentified as a signal sent from the other side. Therefore, this channel is not influenced by signals echoed back.\

GD-1150/1151/1200/1201/1160/1260


3 - 18


- Primary channel

The training is performed according to the parameters set in the phase 4. The transmission rate is 1,200 bps.

Transmitter

Signal name

S signal

S

signal

PP signal

Abbreviation

S

S

PP

Function

Short training

B1 sequence B1

Used by the modem of the receiver to train the equalizer.

Scrambled data frame to be sent when the startup process is completed

Remarks

S

is a signal that makes a transition from phase S.

- Image data

Image data are sent.

Transmitter

Signal name

Image data

-

Abbreviation

Image data

Turn off

Function

Encoded image data

-

Remarks

Scrambled 1 is sent for 35 ms.

3


3 - 19

GD-1150/1151/1200/1201/1160/1260


- Communication end procedure

This procedure is to terminate the communication. The transmission rate is 1,200 bps.

Transmitter

Signal name

Sh signal

Sh

signal

ALT signal

E sequence

End of procedure signal

Flag

Disconnection signal

Abbreviation

Sh

Sh

ALT

E

PPS-EOP flags

DCN

Function

Short training

-

-

The transmission of one page is completed.


Informs to disconnect the line.

7E (H)

Remarks

Receiver

Signal name

Sh signal

Sh

signal

ALT signal

E sequence

Flag

Message confirmation

Abbreviation

Sh

Sh

ALT

E flags

MCF

Function

Short training

-

-


Indicates that the image signal is received normally, and the receiver is ready to receive the next page.

7E (H)

Remarks

GD-1150/1151/1200/1201/1160/1260


3 - 20


3) Example of protocol

The signals shaded in the following figure are the most important signals in the procedure.

- Late start

The receiver cannot detect CM signal while it is sending the ANSam signal. Therefore, it sends a

DIS signal to inform the availability of V.8 support. The transmitter sends a CI signal that causes the receiver to send another ANSam signal which makes the receiver move to the V.8 procedure.


Line closed

(DIS cannot be recognized)

3


3 - 21

GD-1150/1151/1200/1201/1160/1260


- Multi-page sequence

In the same manner as the T.30 procedure, the transmitter sends a PPS-MPS signal after sending the image data. The receiver sends an MCF signal and moves to the next page transmission.


GD-1150/1151/1200/1201/1160/1260


3 - 22


- Mode change

The transmitter and receiver send a PPS-EOM signal and an MCF signal respectively. Then the receiver and transmitter send a DIS signal and a DCS signal respectively to change the mode.


3


3 - 23

GD-1150/1151/1200/1201/1160/1260


- Change of the image transmission speed by the receiver

The receiver sends a PPh signal responding to an Sh signal sent from the transmitter. Then, the image transmission speed is determined according to the MPh sequence sent from the both modems.


GD-1150/1151/1200/1201/1160/1260


3 - 24


- Change of the image transmission speed by the transmitter

The transmitter sends a PPh signal after sending the image data. The receiver returns a PPh signal. Then, the image transmission speed is determined according to the MPh sequence sent from the both modems.


3


3 - 25

GD-1150/1151/1200/1201/1160/1260


3.3

FAX Automatic Switching

3.3.1

General functions

There are two types of setting for the FAX Auto-Switching Mode Selection: TEL Mode and FAX Mode.

3.3.2

TEL mode

This mode is selected to prioritize telephone communication when the frequency of the fax reception is low. When the TEL mode is selected, the automatic FAX reception function does not work. Therefore, when a calling signal comes from the exchange, the telephone ringer continues ringing until the operator picks up the handset. When the operator has learned that the caller is sending a FAX, he has to perform the manual reception operation.

3.3.3

FAX mode

This mode is selected when the telephone circuit is used only for FAX communication. When the FAX mode is selected and a calling signal comes from the exchange, the FAX reception operation starts automatically without ringing the telephone ringer.

In the FAX mode, a calling number can be set up to 15 calls in the self-diagnosis setting “CI detection counter” (13–372).

<Method of judging CNG detection>

0.5s

3s

CNG

CNG-on detection T1

CNG-off detection T2

CNG-determined

• As shown above, after CNG-on detection time T1 (175 ms) and CNG-off detection time T2 (350 ms) have elapsed, and the T1 period has been turned on and then the T2 period off, CNG is determined to have occurred once.

GD-1150/1151/1200/1201/1160/1260


3 - 26


4. ELECTRICAL CIRCUITS

4.1

Configuration

e-STUDIO3511/4511/350/450/200L/202L/203L/230/232/233/280/282/283

GD-1150 GD-1160

Speaker

FAX board

CPU

95C265

Memory

1Mbit x 6

Flash ROM

4Mbit x 1

CODEC

MN86064

FAX ASIC

TENNESEE

V.34 modem

FM336PLUS

MDM board

Memory

1Mbit x 4

CODEC

MN86064

V.34 modem

FM336PLUS

SYS - FAX

I/F harness NCU 1 NCU 2

Fig. 4-1

4


4 - 1

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


GD-1200

Speaker

FAX board

CPU

95C265

Memory

1Mbit x 6

Flash ROM

4Mbit x 1

CODEC

MN86064

FAX ASIC

TENNESEE

V.34 modem

FM336PLUS

GD-1160

MDM board

Memory

1Mbit x 4

CODEC

MN86064

V.34 modem

FM336PLUS

SYS - FAX

I/F harness NCU 1

FAX PWR board

NCU 2

Fig. 4-2

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 2

08/03


e-STUDIO202L/203L/232/233/282/283

GD-1151

Speaker

FAX board

CPU

95C265

Memory

4Mbit x 2

Flash ROM

4Mbit x 1

CODEC

MN86064

GD-1260

FAX ASIC

TENNESEE

V.34 modem

FM336PLUS

MDM board

Memory

4Mbit x 1

CODEC

MN86064

V.34 modem

FM336PLUS

SYS - FAX

I/F harness NCU 1 NCU 2

Fig. 4-3

4


4 - 3

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


GD-1201

Speaker

FAX board

CPU

95C265

Memory

4Mbit x 2

Flash ROM

4Mbit x 1

CODEC

MN86064

FAX ASIC

TENNESEE

V.34 modem

FM336PLUS

GD-1260

MDM board

Memory

4Mbit x 1

CODEC

MN86064

V.34 modem

FM336PLUS

SYS - FAX

I/F harness NCU 1

FAX PWR board

NCU 2

Fig. 4-4

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 4

08/12


4.2

Description of Circuits

4.2.1

Configuration

This section describes the function of each circuit.

The NCU board consists of the transformer, relay, analog switch and other peripheral devices. It controls switching of the line path, generates the dial pulses, detects the line current and ring signal, and monitors the line.

The NCU board is connected to CN501 on the FAX board. It can be also connected optionally to

CN502.

The description in this section is based on the NCU board for Line 1.

NA/TW models

NCU board

T1

IC53

REVA

REVB

TXOUT

Line

Lb

Line current detection circuit

La

AG

IC53

IC51

Analog switch

IC52

RXIN

-

~

DB1

+

~

IC52

CNG signal detection circuit

ANSDET

Dial pulse generation circuit

LD a2

External telephone b2

DC consumption circuit

ATT3DB

CML

FAX board

1

0

1

0

RLY2

CML relay

Ring signal detection circuit

CI

Fig. 4-5

4


4 - 5

04/10

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

EU/AU/AS/C models

NCU board

Line

External telephone

Lb

La a2 b2

REVA

REVB

1

0

1

0

RLY3

CML relay


-

Dial pulse generation circuit

RLY4

Relay

~

DB1

+

~

DC consumption circuit

T1

AG

IC5

Analog switch

IC6

IC6

IC3

Analog switch

IC4

IC4

CNG signal detection circuit

ANSDET

RLADJ1

RLADJ2

CML

LD

TXOUT

ATT3DB

RXIN

FAX board


CI

Fig. 4-6

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 6

04/10


4.2.2

Line path switching control circuit

NA/TW models

Line

NCU board

C5 R4

4 Lb

3 La

+12V

RLY2

CML relay

1 12

9

4

1

0

8

10

1

0 3

3 a2

External telephone

4 b2

T1

AG

Q51

AG

5

IC53

7

6

R66

R67

R71

R59

1

2

1

0

13 1

0

IC51

3

Analog

1 switch

0

4

9,11

10

15

14

R68

1

IC53

2 1

6

IC52

7 2

3

6


FAX board

3

6

CML1 21

ATT3DB1 22

IC29

[IC26]

ASIC

1

2

TXOUT1 28,29

RXIN1 32

IC12

[IC9]

MODEM

Fig. 4-7

The line path switching control circuit consists of the CML relay (RLY2) and analog switch (IC51) on the

NCU board, the ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices.

The CML relay is switched according to the CML1 signal output from the ASIC on the FAX board. When the CML1 signal goes HIGH, Q51 comes on to turn ON the CML relay.

The analog switch is switched according to the CML1 signal and ATT3DB1 signal. When the CML1 signal or ATT3DB1 signal goes HIGH, the analog switch is turned ON.

Turning ON the CML relay and analog switch allow the MODEM to be connected to the line.

Signal Name

CML1

ATT3DB1

Type

O

O

Active

H

H

Description

Line 1 CML Relay Control Signal

Line 1 Attenuator Control Signal

Destination

RLY2, IC51

IC51

* Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and

GD-1151/1201.

4


4 - 7

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


Line

External telephone

NCU board


4

Lb

R26

3

2

La a2

5 b2

+12V

1

RLY3

CML relay

12

4

9

Q4

C7

1

0

5

3

1

0

8

10

2

+12V

4

RLY4

Relay

3

1

AG

T1

AG

R28

R31

R32

R29

C13

R36

C12

R30

C14

IC5

13

Analog switch

0

14 1

15 2

16 3

3

11 10

5

IC6

7

4

IC7

1

2


Q9

AG

1

IC6

2

R11

IC3

1

2

1

0

Analog switch

13

12

1

0

11

10

15

14

1

6

IC4

7 2

7

8

3

6

FAX board

7

8

3

6

CML1

ATT3DB1

RLADJ11

RLADJ21

21

22

24

25

IC29

[IC26]

ASIC

1

2

TXOUT1

RXIN1

28,29

32

IC12

[IC9]

MODEM

Fig. 4-8

The line path switching control circuit consists of the CML relay (RLY3) and analog switch (IC3, IC5) on the NCU board, the ASIC (IC29 [IC26]) on the FAX board, and the other peripheral devices. It changes the path for the FAX send/receive signals and connects it to each control circuit.

The CML relay is switched according to the CML1 signal output from the ASIC on the FAX board. When the CML1 signal goes HIGH, Q4 comes on to turn ON the CML relay.

The analog switch (IC3) is switched according to the CML1 signal and ATT3DB1 signal. When the

CML1 signal or ATT3DB1 signal goes HIGH, the analog switch is turned ON.

The analog switch (IC5) is switched according to the RLADJ11 and RLADJ12 signals.

The analog switch is switched according to the states of the RLADJ11 and RLADJ21 signals.

Turning ON the CML relay and analog switch allow the MODEM to be connected to the line.

Signal Name

CML1

ATT3DB1

RLADJ11, 21

Type

O

O

O

Active

H

H

H

Description

Line 1 CML Relay Control Signal

Line 1 Attenuator Control Signal

Line 1 Return Loss Adjustment Signal

Destination

RLY3, IC3

IC3

IC5


GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 8

08/03


4.2.3

Dial pulse generation circuit

NA/TW models

NCU board

C5 R4

Line

4 Lb

3 La

+12V

RLY2

CML relay

1 12

9

1

0

8

10

4

1

0 3

3 a2

External telephone

4 b2

DB1

-

~

~

Q51

AG

+

+5V

4

3

1

PC1

2

Q53

SG


3

4

FAX board

3 CML1 21

4 LD1 20

IC29

[IC26]

ASIC

Fig. 4-9

The dial pulse generation circuit consists of the diode bridge (DB1), photocoupler (PC1), the ASIC

(IC29 [IC26]) on the FAX board and the other peripheral devices. It generates the dial pulses in the FAX transmission and dialing to the outside.

The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side. To generate the dial pulse, the ASIC makes the LD1 signal become HIGH to turn ON Q53. This allows the photocoupler to come on and the current flows through the DB1 to send the dial pulses to the line.

Signal Name

LD1

Type

O

Active

H

Description

Line 1 Dial Pulse Generation Signal Q53

Destination


GD-1151/1201.

4


4 - 9

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


Line

External telephone

NCU board

+12V

1

RLY3

CML relay

12

4 Lb 4

1

0

5

3

3 La 9

1

0

8

10

2 a2

5 b2

6

4

IC1

+5V

1

2

Q6

SG

T1

Q4

AG

AG

Line path switching circuit


3

4

FAX board

3 CML1 21

4 LD1 20

IC29

[IC26]

ASIC

Fig. 4-10

The dial pulse generation circuit consists of the photocoupler (IC1), the ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices. It generates the dial pulses in the FAX transmission and dialing to the outside.

The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side. To generate the dial pulses, the ASIC makes the LD1 signal become HIGH to turn ON Q6. This allows the photocoupler to come on and the current flows through the line for sending a dial attempt.

Signal Name

LD1

Type

O

Active

H

Description

Line 1 Dial Pulse Generation Signal Q6

Destination


GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 10

08/03


4.2.4

Line current detection circuit

NA/TW models

NCU board

R87

C7

1

PC3

8

2 7

3

PC3

6

4 5

Line

4

Lb

R86

SG

19

20

FAX board

19

REVA1

2

20

REVB1

3

IC29

[IC26]

ASIC

Fig. 4-11

The line current detection circuit consists of the photocoupler (PC3), ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices. It detects a dial tone and the hook status of the external telephone from the current flowing through the line.

When a dial tone is input from the telephone line, current flows through the line and the photocoupler is repeatedly turned ON/OFF. This allows the REVA1 and REVB1 to be the pulse signals and input to the

ASIC, then the dial tone is detected.

When the handset is lifted from the external telephone, current also flows through the line and the photocoupler is turned ON/OFF, then the off-hook state is detected.

Signal Name

REVA1

REVB1

Type

I

I

Active

-

-

Description

Line 1 Current Detection Signal

Line 1 Reverse Current Detection Signal

Destination

IC29 [IC26]

IC29 [IC26]


GD-1151/1201.

4


4 - 11

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


NCU board

R26

1

2

8

IC2

Line current detection

IC

7

19

20

FAX board

19

REVA1

2

20

REVB1

3

IC29

[IC26]

ASIC

Line

4

Lb

Fig. 4-12

The line current detection circuit consists of the line current detection IC (IC2), ASIC (IC29 [IC26]) on the FAX board, and the other peripheral devices. It detects a dial tone and the hook status of the external telephone from the current flowing through the line.

When a dial tone is input from the telephone line, current flows through the line. The line current detection IC sends REVA1 and REVB1 to the ASIC as pulse signals. This allows a dial tone to be detected.

Signal Name

REVA1

REVB1

Type

I

I

Active

-

-

Description

Line 1 Current Detection Signal

Current Reverse Line 1 Current Detection

Signal

Destination

IC29 [IC26]

IC29 [IC26]


GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 12

08/03


4.2.5

CI detection circuit

NA/TW models

Line

NCU board

+12V

1

RLY2

CML relay

12

4 Lb

3 La

9

4

1

0 10

1

0 3

ZD1 ZD3 C1 R2

Q51

3

AG

D52

1

2

PC2

4

3

5VPS

R79

17

SG

Fig. 4-13

FAX board

3 CML1 21

17 CI1 4

IC29

[IC26]

ASIC

The CI detection circuit consists of the photocoupler (PC2), ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices to detect a ring signal input from the telephone line.

The ASIC makes the CML1 signal become LOW to connect the CI detection circuit to the telephone line.

When a ring signal is input from the telephone line, the photocoupler is repeatedly turned ON/OFF. This allows the CI1 signal to become a pulse signal and input to the ASIC on the FAX board, thereby detecting the ring signal.

CI1

Signal Name Type

I

Active

-

Description

Line 1 CI Detect Signal

Destination

IC29 [IC26]


GD-1151/1201.

4


4 - 13

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


Line

NCU board

+12V

1

RLY3

CML relay

12

4 Lb

3 La

4

9

1

0 3

1

0 10

C8 R4 ZD2 ZD3

Q4

AG

5VPS

3

D2

1

2

PC1

4

3

R35

Q5

R34

17

SG

Fig. 4-14

FAX board

3 CML1 21

17 CI1 4

IC29

[IC26]

ASIC

The CI detection circuit consists of the photocoupler (PC1), ASIC (IC29 [IC26]) on the FAX board and other peripheral devices to detect a ring signal input from the telephone line.

The ASIC makes the CML1 signal become LOW to connect the CI detection circuit to the line. When a ring signal is input from the telephone line, the photocoupler is repeatedly turned ON/OFF. This allows

Q5 to be turned ON/OFF and the CI1 signal to become a pulse signal and input to the ASIC on the FAX board, thereby detecting the ring signal.

CI1

Signal Name Type

I

Active

-

Description

Line 1 CI Detection Signal

Destination

IC29 [IC26]


GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 14

08/03


4.2.6

Line monitor circuit

NA/TW models

Line

NCU board (Line1)

4 Lb 9

3 La 4

+12V

1

RLY2

CML relay

0

1

0

8

12

FAX board

T1

AG

5

IC53

7

6

R66

R67 R71

IC51

3 1

0

Analog switch

4 1

IC53

2 1

R59

1

2

1

0

13 1

0

14

9,11 10

15 6

IC52

7 2

6

3

R68

Q51

AG

NCU board (Line2)

Speaker

SP+

SP-

1 TXOUT1

28,29[25,26]

32[9]

IC12

[IC9]

MODEM

2

6

3

RXIN1

2 RXIN2

1

2

IC10[IC1]

5 3 3

IC9

[IC2]

Analog switch

1

5

2

13

14

R273

15

R272

12

R271

R270

R268

R267

R266

4

SG

11

AG

10

9

2

1

IC3

Analog switch

14

12 RING 43

9

10

11

MF-SEL

SP-SEL

MON

6

15

26

IC45

[IC12]

CPU

ATT3DB1 22

CML1 21

VOLSEL0

VOLSEL1

VOLSEL2

16

17

18

IC29

[IC26]

ASIC

Fig. 4-15


GD-1151/1201.

4


4 - 15

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS


NCU board (Line1)

Line

4 Lb 4

3 La 9

+12V

1

RLY3

CML relay

1

0

5

1

0

8

T1

12

AG

5

IC6

7

1

IC6

2

R11

1

2

1

0

IC3

Analog switch

13 1

0

15

14

11 10

Q4

AG

FAX board

1 1 TXOUT1

6

IC4

7 2

6

3

NCU board (Line2)

Speaker

SP+

SP-

2

6

3

RXIN1

2 RXIN2

1

2

IC10[IC1]

5 3

SG

13

14

R273

15

R272

IC9

[IC2]

Analog switch

1

5

2

12

R271

R270

R268

R267

R266

4

11

AG

10

9

2

1

IC3

Analog switch

14

28,29[25,26]

32[9]

IC12

[IC9]

MODEM

RING 43

IC45

[IC12]

CPU

MF-SEL

SP-SEL

MON

6

15

26

ATT3DB1

CML1

22

21

VOLSEL0

VOLSEL1

VOLSEL2

16

17

18

IC29

[IC26]

ASIC

Fig. 4-16

The line monitor circuit consists of the CML relay (NA/TW: RLY2, EU/AU/AS/C: RLY3), analog switch

(NA/TW: IC51, EU/AU/AS/C: IC3), the ASIC (IC29 [IC26]) and analog switches (IC3, IC9 [IC3, IC2]) on the FAX board, and other peripheral devices. It switches the telephone line path using the analog switch and monitors the line status and ringer signal in the FAX transmission and reception using the speaker connected to CN503 on the FAX board. It also switches the analog switch to output a buzzer tone from the speaker.

The signal to be monitored is selected by switching the analog switch (IC3) according to SP-SEL signal and MON signal which are output from the ASIC.

To monitor the line during the transmission and reception, the ASIC makes the CML1 signal become

HIGH to switch the analog switch and connect the line to the MODEM side.

For the line path switching control, refer to P. 4-7 "4.2.2 Line path switching control circuit".

The relation between the signal levels and monitoring signals is as follows.

LINE Monitor

Monitoring signal

Line 1

Line 2

SP-SEL

LOW

HIGH

-

MON

HIGH

HIGH

LOW Ringer/Alarm

The monitoring signal selected by IC3 is input to the analog switch (IC9 [IC2]) to select the output sound volume. The sound volume is selected by switching IC8 according to the VOLSEL0-2 signals output from the ASIC and selecting an input resistance for the monitoring signal.

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 16

08/03


The relation between the signals and sound volume is as follows.

Sound volume VOLSEL2 VOLSEL1 VOLSEL0

Max. (7)

(6)

(5)

(4)

(3)

(2)

Min. (1)

Silent (0)

LOW

LOW

LOW

LOW

HIGH

HIGH

HIGH

HIGH

LOW

LOW

HIGH

HIGH

LOW

LOW

HIGH

HIGH

LOW

HIGH

LOW

HIGH

LOW

HIGH

LOW

HIGH

The monitoring signal whose volume is controlled by IC9[IC2] is amplified by the OP amplifier (IC10

[IC1]), then output to the speaker.

Signal Name Type Active Description Destination

SP-SEL

MON

VOLSEL0-2

O

O

O

H

H

H

Line/Tone Selection Signal

Ring/Tone Selection Signal

Speaker Volume Control Signals 0-2

IC3

IC3

IC9 [IC2]


GD-1151/1201.

4


4 - 17

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4.3

PC Boards

1) PWA-F-FAX-562 / PWA-F-FAX-610

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

Fig. 4-17

4 - 18


2) PWA-F-FAX-670

Fig. 4-18


4 - 19

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4

3) PWA-F-NCU-US-562/PWA-F-NCU-631-US

Fig. 4-19

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 20

08/03


4) PWA-F-NCU-EU-562/PWA-F-NCU-631-EU

5) PWA-F-MDM-563

Fig. 4-20

Fig. 4-21


4 - 21

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4

6) PWA-F-MDM-631

7) PWA-F-FAX-POWER-610

Fig. 4-22

Fig. 4-23

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 22

08/03


8) PWA-F-FAX-POWER-631

Fig. 4-24

4


4 - 23

08/03

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

GD-1150/1151/1200/1201/1160/1260

ELECTRICAL CIRCUITS

4 - 24


5. INSTALLATION

5.1

Explanation to the Users

After installing the FAX unit, explain the following items to the user using the Operator’s Manual.

With the underlined items, actually demonstrate the operation.

Items to be explained

• Switches and control panel

- Summary of the control panel (FAX functions)

- After power is turned OFF, image data are kept in HDD.

• How to set originals

- Acceptable original size and scanning width

- How to insert originals:

Multiple originals placed on the RADF are scanned from the first page.

- Unacceptable originals

- How to set the mode (image quality) and density (contrast)

• Transmission method

- Manual transmission

- Monitor dialing

- Direct dialing (with the digital keys)

- Phone book dialing

- Delayed transmission

- Multi transmission

- Redialing

• Recording paper size

- Recording paper size

- How to change the recording paper size

• Automatic/manual reception

- How to switch the automatic and manual reception

- How the machine works and how to operate it when a FAX is received in these modes

• Other functions

- Memory reception (with the power kept ON)

- How to set the power saving mode

• Polling

- Polling operation

- How to operate the polling reception and transmission

- How the multi-polling reception works and how to operate it

• How to register addresses

- How to register new addresses in the Phone Book

- How to correct or erase the contents of the Phone Book

- Group registration in the phone book for the multi-transmission or multi-polling

• How to output lists

- How to output the TRANSMISSION JOURNAL and RECEPTION JOURNAL


5 - 1

04/06

GD-1150/1151/1200/1201/1160/1260

INSTALLATION

5

GD-1150/1151/1200/1201/1160/1260

INSTALLATION

5 - 2


TOSHIBA GD 1150/1151, GD 1200/1201, GD 1160/1260 fax machine SERVICE MANUAL

Assistant Bot

SERVICE MANUAL

FACSIMILE

The installation and service should be done by a qualified service technician.

CONTENTS

1.1

FAX Options

1.2

Specifications

1.3

Features

1.4

Accessories and Parts

1.5

Options

1.6

System List

1.7

Units and Components

1.8

Layout of PC Boards

2.1

Recording Mode

2.2

Recording Paper Selection Algorithm and Printing Algorithm

2.2.1

Recording paper selection algorithm

2.2.2

Printing algorithm

2.2.3

Setting for the split recording

2.3

Recording Paper and Function

2.3.1

Table of the recording paper selection modes

2.3.2

Others

2.4

Energy Saver Mode

2.5

Memory Reception

3.1

Circuit Connection and Procedure to Change Mode

3.1.1

Dial call-up transmission to a telephone circuit

START

END

3.1.2

Selection of the communication mode

3.1.3

Procedure to select the transmission mode

START

3.2

Signaling System Diagram and Signal Forms

3.2.1

Circuit control signals

3.2.2

Communication with the binary signals

NSS•TSI•DCS

TCF

EOM

NSS•TSI•DCS

TCF

MPS

DCN

NSS•TSI•DCS

TCF

PPS NULL

PPS MPS

PPS MPS

PPS EOP

DCN

3.2.3

V.8/V.34 communication sequence

3.3

FAX Automatic Switching

3.3.1

General functions

3.3.2