Xante VM4 News User Guide

Violet Metal CTP Series

User Guide

Trademarks

Xanté™ and Xante Corporation™ are trademarks of Xanté Corporation.

All other brand and product names are trademarks, registered trademarks, or service marks of their respective holders.

Manual Notice

Xanté Corporation reserves the right to make changes to this manual and to the equipment described herein without notice. Every effort has been made to ensure that this manual is free of inaccuracies and omissions. However,

Xanté Corporation makes no warranty of any kind including, but not limited to, any implied warranties of merchantability and fi tness for a particular purpose with regard to this manual.

Xanté Corporation assumes no responsibility for, or liability for, errors contained in this manual or for incidental, special, or consequential damages arising out of the furnishing of this manual, or the use of this manual in operating the equipment, or in connection with the performance of the equipment when so operated.

FCC Classifi cation

Changes or modifi cations to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a

Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with the

FCC Class A limits.

Power Information

110 V Version:110 VAC, 50/60 Hz, 15 A

220 V Version:220 VAC, 50/60 Hz, 15 A

Power Cord

The power cord is the main disconnect device. It should be plugged into an easily accessible outlet.

For 110 Volt Confi guration:

The power cord to be used with 115 Volt confi guration is minimum type SJT

(SVT) 18/3, rated 250 Volts ac, 10 Amps with a maximum length of 15 feet.

One terminated in an IEC 320 attachment plug. The other end is terminated in a NEMA 5-15P plug.

For 220 Volt Confi guration

The power cord to be used with 230 Volt confi guration is minimum type SJT

(SVT) 18/3, rated 250 Volts ac, 10 Amps with a maximum length of 15 feet.

One terminated in an IEC 320 attachment plug. The other end is terminated as required by the country where it will be installed.

Manufacturer’s Declaration of Conformity

The Product has been designed and manufactured in accordance with the following international standards:

EN 55022 Limits and Methods of Measurement of Radio Interference

Information Technology Equipment of 14, April 1987

EN 61000-4-2 Electromagnetic Compatibility (EMC) - Part 4.2: Testing and

Measurement Techniques - Electrostatic Discharge Immunity Test-

Includes Amendments A1:1998 and A2:2001; IEC 61000-4-2:1995

+ A1:1998 + A2:2000

ENV 61000-4-3 Electromagnetic Compatibility (EMC) - Part 4-3: Testing and Measurement Techniques - Radiated, Radio-Frequency,

Electromagnetic Field Immunity Test-IEC 61000-4-3:2006

ENV 50204 Radiated Electromagnetic Field from Digital Radio Telephones

Immunity Test

EN 61000-4-4 Electromagnetic compatibility (EMC) Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test-IEC 61000-4-4:2004; Incorporating corrigendum August 2006

EN 61000-4-5 Electromagnetic Compatibility (EMC) - Part 4-5: Testing and

Measurement Techniques - Surge Immunity Test-IEC 61000-4-

5:2005

VM User’s Guide 3

EN 61000-4-6 Electromagnetic compatibility (EMC) — Part 4-6: Testing and measurement techniques — Immunity to conducted disturbances, induced by radio-frequency fi elds

EN 61000-4-8 Electromagnetic Compatibility (EMC) - Part 4-8: Testing and

Measurement Techniques - Power Frequency Magnetic Field

Immunity Test-Including Amendment A1: 2001; IEC 61000-4-8:

1993 + A1: 2000

EN 61000-4-11 Electromagnetic compatibility (EMC) Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests-IEC 61000-4-11:2004

EN 60950 Safety of Information Technology Equipment including Electrical

Business Equipment”

IEC 825-1 Safety of Laser Products - Part 1: Equipment Classifi cation,

Requirements and User’s Guide-Superesedes EN 60825: 1991;

Includes Amendments A2: 2001 and A1: 2002; IEC 60825-1: 1993

+ Corrigendum 1994 + A2:2001 + Corrigendum June 2002 + A1:

2002; Incorporates corrigendum February 1995 and April 2004

Table of Contents

Chapter 1 - Introduction to the VM .......................................................9

The VM and the CTP System ..................................................................................9

How a CTP System Works .................................................................................9

How the Host RIP Works With the VM .................................................................10

The Imaging Cycle ...........................................................................................10

Power Up ...................................................................................................10

Initialization .............................................................................................10

Raster Image Processing ...........................................................................10

Imaging ......................................................................................................10

Setup ......................................................................................................................11

Site Preparation .........................................................................................11

Clean Conditions ........................................................................................11

Yellow Room ............................................................................................12

Power Supply .............................................................................................12

Parallel Video Interface ..............................................................................12

Machine Identifi cation Label .....................................................................13

Parts and Features ..................................................................................................13

Operator Door ............................................................................................

13

Power Switch .............................................................................................14

Leveling Feet .............................................................................................

14

Air Inlet Filter ............................................................................................

14

Vacuum Hose ............................................................................................14

Power Inlet and Outlet ...............................................................................

14

Sensors ......................................................................................................14

Door Interlock ............................................................................................

15

Internal Drum .............................................................................................15

Transport Assembly ...................................................................................15

Manual Filter Switch ..................................................................................15

Ports ...........................................................................................................16

Fan..............................................................................................................16

Access Doors .............................................................................................16

Chapter 2 - Operating the VM ..............................................................17

Using the VM Control Panel ..................................................................................17

Control Panel .............................................................................................17

LED Indicators ...........................................................................................17


Key Functions ............................................................................................17

Key Combinations .....................................................................................17

Audible Beeper .........................................................................................17

Display .......................................................................................................18

Menu Line Operation .................................................................................18

VM Menus ............................................................................................................19

Plate Setup: .....................................................................................................19

Setup Menu .....................................................................................................19

Power level .................................................................................................19

uJoules/cm

^2

...............................................................................................19

Plate length .................................................................................................19

Plate width .................................................................................................19

Plate thick ...................................................................................................

20

Plate type ....................................................................................................20

Exit to main ................................................................................................20

Option Menu ....................................................................................................20

Beep remind ...............................................................................................

20

Plate units ...................................................................................................20

Header ........................................................................................................

Header ........................................................................................................

20

Maintenance Menu ...........................................................................................21

Start/stop vacuum .......................................................................................21

Move transport home .................................................................................21

Move transport away ..................................................................................21

Reset machine ............................................................................................21

Exit to main ................................................................................................21

Selftest Menu ...................................................................................................21

Select density group ...................................................................................21

Select gridtest .............................................................................................

22

Select tone group ........................................................................................23

Select 25% tonetest ....................................................................................

23

Select 50% tonetest ....................................................................................

23

Select 75% tonetest ....................................................................................

24

Select 100% tonetest ..................................................................................

24

Exit to main ................................................................................................24

Status Messages ..............................................................................................25

Plate Loading .............................................................................................26

Chapter 3 - Plates ...................................................................................27

About Plates ...........................................................................................................27

Handling Plates ................................................................................................27

Harmony Chemicals .........................................................................................27

Harmony Metal Plate Sizes ..............................................................................28

Plates and Light ................................................................................................

28

Plate Storage ....................................................................................................28

Imaged Plate Storage .......................................................................................29

Plates in the Pressroom ....................................................................................30

Chapter 4: Maintenance ........................................................................31

Daily Maintenance .................................................................................................31

Monthly Maintenance ............................................................................................31

Air Filter .....................................................................................................

31

Maintain The Environment ........................................................................

31

Environmental Checklist ..................................................................................

32

Light ..........................................................................................................32

Temperature ..............................................................................................32

Humidity ...................................................................................................32

Dust and Fumes .........................................................................................32

Static ........................................................................................................32

Vibration ....................................................................................................32

Power .........................................................................................................

32

Cleaning VM Optics ..............................................................................................32

Calibration ..............................................................................................................36

When to Calibrate ......................................................................................36

Calibrating for New Plates .........................................................................37

Select Plate Length and Width ...................................................................38

Image & Process the Density Group Test ..................................................

38

CHAPTER 5 Troubleshooting ..............................................................40

Plate Loading Diffi culty .............................................................................40

Failure to Power Up ...................................................................................41

Repeatability / Plate Registration ..............................................................41

Accuracy Issues ........................................................................................41

Default Error ## (number) ........................................................................41

Status and Error Messages Reported on Front Panel ...............................42

Troubleshooting Issues Appearing on the Plate ..............................................43


Jitter ..................................................................................................................

43

Dot Loss ...........................................................................................................43

Dot Gain ...........................................................................................................44

Uneven Tints ....................................................................................................45

Dots or Lines ....................................................................................................45

Banding ...........................................................................................................46

Over or Underexposure ...................................................................................46

Fogging ...........................................................................................................47

Abrasions in the Image ....................................................................................47

Troubleshooting On the Press ................................................................................48

Troubleshooting Plates ...........................................................................................48

Plate Centering Punches ........................................................................................49

VM AC Panel Fuse Failure ....................................................................................50

Lack of Suffi cient Power

VM Shares the Line ...................................................................................50

Wiring ........................................................................................................50

Intermediate Devices Used ........................................................................

50

About Fuses .....................................................................................................50

10A Fuse Replacement ....................................................................................

51

3A Fuse Replacement .....................................................................................53

Darkroom Test ........................................................................................................

54

STEP 1: Check Lights and Bulbs ...............................................................54

STEP 2: Visual Test for Light Leaks ..........................................................54

STEP 3: Plate Test of Safelight Conditions ...............................................54

Reading The Results ..................................................................................55

Technical Specifi cations ...................................................................................56

Technical Support ..................................................................................................

57

Calling Technical Support: .........................................................................57

Email Support: ...........................................................................................57

Service Record .......................................................................................................

67

Chapter 1 - Introduction to the VM

The VM and the CTP System

Congratulations on the purchase of a Xante Violet Metal (VM) Computerto-Plate (CTP) system. VMs are 2-up and 4-up platesetters using violet laser technology. These systems provide strong performance in commercial and newspaper applications due to high-speed imaging, long laser life, outstanding quality, and low cost of ownership. Symphony OpenRIP, Xanté’s award-winning RIP, and the PlateRunner Processor may also be part of a

CTP system as well as Harmony Metal Plates and Harmony Chemicals.

How a CTP System Works

A computer-to-plate system has some or all of the following parts:

• a RIP, or raster image processor

• a VM, a violet metal platesetter

• a Processor, a six-stage processor for metal plates

• a Press, where the plates are run

• Plates, light-sensitive metal plates

The RIP runs on a PC workstation and accepts fi les from all kinds of applications. The “RIP” allows an operator to use imaging devices such as inkjet printers, imagesetters, plotters, laser printers and platesetters like the

VM.

The RIP sends the fi les formatted for the VM. Once the VM has data available and a plate is loaded, the imaging cycle begins. The front panel will display the Job Name, Number, and Size of Plate required. The VM synchronizes its systems and tells the RIP it is ready to image. The imager will move continuously across the drum, imaging the plate, until the job is complete.

Once the plate is removed from the VM and loaded into the Xante

PlateRunner Processor, the imaged plate is processed. The plate is then ready for the press.


How the Host RIP Works With the VM

The VM receives fi les from the RIP, or from NetImager, an optional RIP component, or ImagerQConcerto, an Imager Shooter Application. The RIP and the VM share status information and data via the parallel video interface and a proprietary PCI card installed in a PC.

The RIP creates the raster image from Postscript data, confi gures the VM, and sends the binary raster image data to the VM.

The Imaging Cycle

Power Up

When the VM is fi rst turned on using the power switch on the lower left side on the front of the unit, or when the unit is Reset from the

Maintenance menu, the VM performs an internal systems check and verifi es that all parameters are normal.

After a short delay, the control panel will show a green light indicating it is powered up and ready for use. The VM will display status messages on the control panel.

Initialization

The RIP will check the status of the platesetter to make sure it is ready to print. Both the RIP (or TIFF shooter) and the VM control panel will indicate if there is an operator action required such as loading or changing a plate.

Raster Image Processing

The RIP takes data and converts it to rasterized data to render an image.

The resolution and screen parameters are defi ned by the operator for each job.

Imaging

Once a plate is loaded and the door is closed, the VM synchronizes its system and indicates to the RIP that it is ready to image.

The imager will move continuously across the drum, imaging the plate, until the job is complete.

When the job is complete, the RIP ends the imaging cycle. The VM turns to an idle state, sounds two short beeps,and fl ashes the display message instructing the operator to “Change” or “Remove” the exposed plate.

Setup

Site Preparation

CTP requires site preparation and setup to ensure the low cost of ownership and quality output. Xanté provides a detailed site preparation information in the

Site Prep Guide

.

Clean Conditions

For the best possible results from the VM, an environment free of dust and debris is necessary. Dust can damage the VM and its components, as well as prevent quality output.


Yellow Room

A yellow room is necessary to properly operate a Xante VM. The darkroom will prevent the light-sensative plates from being destroyed. Proper

“safelight” conditions are outlined in the


.

Power Supply

There are 3 VM electrical confi gurations available:

• 120V/60 Hz

• 220V/50 Hz

• (220V/60 Hz may be accommodated by special request)

All VM models ship with an IEC power inlet built-in. 120V models ship with a power cord with a NEMA 5-15 outlet connector. 220V models do not ship with a power cord; it must be supplied locally.

All VM models require a dedicated circuit. It is strongly suggested that an electrician verify that the power supply meet these requirements:

• 120V models require 110-125V, 15A minimum circuit with less than 5V drop under full load

• 220V models require 208-230V, 10A minimum circuit with less than

7V drop under full load (vacuum pump startup: >25A for less than 2 seconds)

Parallel Video Interface

The standard connection from the VM to the RIP computer, is the

Parallel Video interface. This interface requires an interface card and interconnecting cable for the host RIP computer. Using a cable not approved by Xante will likely damage the equipment.

Machine Identifi cation Label

The identifi cation label is located on the back of the machine near the power cord. This label includes information and certifi cations required by various regulatory organizations. This label contains:

• Serial Number

• Model Number

The numbers will be necessary when requesting technical information from Xante. This information is also on the Service Record, located inside the VM, and on the back cover of this manual.

Parts and Features

Operator Door

This is the largest door on the front. This door opens to access the internal drum.


Power Switch

Located on the left lower front panel.

Leveling Feet

The VM has adjustable feet for leveling during installation. The feet should not carry the majority of the weight but should only be used to level and balance the VM.

Air Inlet Filter

Position the VM at least 18” away from the wall to allow access to the Air

Inlet Filter. The air inlet fi lter cartridge should be visually inspected monthly and replaced if there is any dust. If the fi lter displays substantial dust, contact Technical Support.

A clean environment ensures optimal equipment performance. Excess dust and air-borne contaminants will cause optical, electronic, mechanical transport, and plate quality issues.

Vacuum Hose

Located on the back of the VM; near the Air Inlet Filter..

Power Inlet and Outlet

Located on the back with a 10A Blow Fuse for the entire VM including the vacuum pump and a 3A Fuse for the other internal VM functions.

Sensors

When loading a plate, there are sensors and guides for assuring the plate is in the right position.

Door Interlock

The door interlock switch has two magnetic switches mounted in the base cabinet of the VM. The switches are activated when the door is closed.

Internal Drum

The VM has an internal concave stainless-steel drum. Plates are held in place by a strong suction that automatically engages when the plate triggers the sensors.

Transport Assembly

This is the large assembly that moves along the rail from the leftmost position (Home or Start) to the rightmost position (Away) as it images the plate. The Transport Assembly contains the laser and optics as well as the spin motor and electronics for the laser.

Manual Filter Switch

Located on the transport assembly, this switch has two settings, HI which is operating mode and LO which is used at the factory for calibration.


Ports

Located next to the parallel video interface or factory port is a Modem or

Terminal Diagnostic port.

Fan

A separate fan for the PCB compartment is located on the back of the VM.

Access Doors

Access doors to the printer control board (PCB) compartment and power supply area are located on the back of the VM.

Chapter 2 - Operating the VM

Using the VM Control Panel

Control Panel

The control panel includes a four-line display, Arrow Up and Arrow Down keys, a Select key, and an audible beeper.

The Control Panel main functions are:

• Displays status of VM and indicates size and number of plates to load for each job

• Displays the name of the job running (if available from RIP)

• Displays hardware error messages

• Used for running self tests for exposure calibration and diagnostics

If the control panel fl ashes or beeps, the VM requires attention. A full list of status messages and hardware error messages are provided in this manual.

LED Indicators

• Red: BUSY Flashes when laser head is moving and imaging plate

• Green: POWER Continuously illuminated to show power is available

Key Functions

UP ARROW KEY ▲ - Scrolls up

DOWN ARROW KEY ▼ - Scrolls down

SELECT KEY



- Selects, usually indicated by an arrow next to the item on the display

Key Combinations

UP ARROW KEY ▲ + SELECT KEY



= Toggle Menu

UP ARROW KEY ▲ + DOWN ARROW KEY ▼ = Transport Unit Home

DOWN ARROW KEY ▼ + SELECT KEY



= Transport Unit Away

UP ARROW KEY ▲ + DOWN ARROW KEY ▼ + SELECT KEY



= Reset

Audible Beeper

Can be set to

On

or

Off

from the Option menu.


Display

Top Line is the

Status

Line - It displays the current status/error condition of the VM.

Second line is the

Plate Size Information

- The required plate size for the current job.

Third line is the

Job Information

- This line displays text from the RIP, usually the Job Name and number of plates required by job.

Bottom line is the

Menu

Line. This line displays the Menu selected.

Menu Line Operation

During imaging or other functions, ‘

Select from menu

’ may be substituted with messages about the VM’s status. Scroll through the menus by pressing the

Up Arrow

or the

Down Arrow

keys. Make a menu selection by pressing the

Select

key.

If the current menu selection is a programmable parameter, then the front panel toggles from the menu mode to the program mode and displays an arrow to the left of the parameter value. The

Up Arrow

and key now increase or decrease the parameter value.

Down Arrow

Pressing the

Select

key switches the front panel from the program mode back to the menu mode. The arrow to the left of the parameter will disappear and the parameter is permanently stored in memory.

VM Menus

Plate Setup:

Selects one of four setup menus: A, B, C, or D. The default is A.

Setup Menu

Most of the functions will be setup during installation and do not change until recalibration.

Power level

Two values, either LO or HI. Default is HI, for metal plates. LO is for calibration by the manufacturer.

uJoules/cm

^2 uJoules per square centimeter (uJ/cm

^2

) is a measure of the amount of energy on the plate. This value is set during the exposure calibration process. The value can be set between 20 and 9999.00. Adjusting this value above 100 uJoules/cm

^2

will not increase the actual light energy on plate because the VM will not allow the laser to be damaged by a too high setting.

Plate length

Sets the actual plate length according the current setup.

The values are between 9” (228.6 mm) and 19.98” (507.6 mm) for the

VM2, and between 9” (228.6 mm) and 25” (635 mm) for the VM4. This number is only used by the VM for selftests.

Plate width

Sets the actual plate width between 9” (228.6 mm) and 20.88” (530.4 mm) for the VM2, and 9” (228.6 mm) and 36.50” (927.1 mm) for the VM4 This is the plate measurement across the drum. This number is only used by the

VM for selftests. It is a good idea to reset this number at the end of a job, or the same size will be used next time.


Plate thick

Sets the plate thickness between

.003in

(3mil) and

.011in

(11mil).This setting has nothing to do with focus. It is used by the program to fi nely adjust the fast scan line length. If this is not a concern, the recommended setting is

.008in

(8mil).

Plate type

Indicate which type of plate will be used; negative or positive. Xanté

Harmony Plates are negative-working plates. Negative-working plates print where they are exposed to light. This setting determines whether the leading edge is exposed;

POS

exposes the edge and

NEG

does not.

Exit to main

Returns to the main menu.

Option Menu

Beep remind

When enabled, the control panel will beep every 5 seconds to remind of current condition. Choose between

EN

for enabled and

DIS

for disabled.

Plate units

Used for all fi lm or plate length displays. Choose between

ENG

(English measurement units) or

MET

(Metric measurements units).

Header

When selected, text containing the VM engine parameters is printed at the beginning of the job. Choose

NONE

,

TEST

, or

ALL

. Normally set to TEST

(the header will only print on selftest jobs and not on jobs from the RIP).

Exit to main


Maintenance Menu

Start/stop vacuum

Used to manually start or stop the vacuum.

Move transport home

Moves the laser transport to the “home” or far left position.

Move transport away

Moves the laser transport to the ”away” or far right position.

Reset machine

Forces the machine to execute a software reset sequence.

Exit to main


Selftest Menu

There are 7 tests that can be selected from this menu for various calibration and settings tests:

Select density group

This test varies the laser power in 5% increments from 85% to 125% of the current density setting. (2540 resolution for the VM2, VM2 Plus and

VM4. The test is run at 1270 resolution for the VM4 NEWS).


The ability to resolve each of these tests is dependent on the amount of exposure, the brand of plate, and the general ‘health’ of the rest of the system. The most utilized portion of the test will be the 50% tone test, which is used to determine the optimum exposure. Other lines are used for factory testing.

Select gridtest

This test produces a 508 x 508 pixel grid with 6-pixel wide lines at the current resolution.

Select tone group

This test produces four stripes of 100%, 75%, 50%, and 25% tints at the current resolution.

Select 25% tonetest

This test produces a 25% tint at 90 degrees with 2540 resolution.

Select 50% tonetest

This test produces a 50% tint at 90 degrees with 2540 resolution. This is the test most often used to set exposure for the VM2, VM 2 Plus, and the

VM4.


Select 75% tonetest

This test produces a 75% tint at 90° with 2540 resolution.

Select 100% tonetest

This test produces a solid area of exposure; used in conjunction with the

Stouffer step wedge test.

Exit to main


Status Messages

Below is a list of messages displayed on the control panel during normal operation.

Status Messages

Ready

Move transport home

Plate is loaded, Ready to image.

Indicates that transport not in the home position after a reset – Move imager home thought the control panel Maintenance menu

No plate on drum, no RIP job in progress.

Plate not loaded

Load plate

Reload plate – left

No plate on drum, RIP job in progress, must load plate as specified on the plate size line

Edge of plate is not over EOP slot. Must load plate again in proper position and restart job

Remove plate

Change plate

Plate on drum has been exposed and is ready for processing

Plate on drum has been exposed and is ready for processing AND a new

Loading plate

plate must be loaded for a new job which is in progress

Displayed briefly when the vacuum starts

Please wait...

Laser temperature too high. Normal message for up to a couple of minutes when turning machine on.

Transport moving -->

Transport moving <--

Transport is presently moving to the right or away position

Transport is presently moving to the left or home position

Imaging

Imaging DensityGroup

Imaging 25% tone



Imaging from the RIP in progress

Imaging of the corresponding test in progress


Imaging gridtest

Imaging Tone Group

Cover open

Front door/Cover is presently open


Plate Loading

Plates are loaded manually by the operator under proper yellow safelight conditions. The plates should be kept in their original packaging and protected from exposure.

To load a plate (under yellow safelight):

1. The control panel will advise what plate size to use for the job. The width of the plate will be oriented across the front edge of the drum and the length measurement will follow the shape of the drum.

2. Open the VM front door

3. If there is an exposed plate on the drum, remove it and insert it into the plate processor.

4. Remove an unexposed plate from its protective packaging (usually in a light safe drawer close to or underneath the VM), slide the plate into the VM drum. It should not be necessary to touch the plate in the printing area. Touch the edges, back of plate and gripper area only. (Practice the following under bright daylight condition with a

“throwaway” plate until it is easy to do.)

5. Locate the plate against the appropriate left side stop on the VM drum.

6. Pull the plate up against two contact blocks and hold while the vacuum pump creates enough suction to hold the plate down onto the drum

(about three seconds).

7. Close door. Imaging begins.

Chapter 3 - Plates

About Plates

Harmony Metal Plates are recommended for use in the VM although the VM will work well with most currently available violet-sensitive aluminum, silver or photopolymer plates.

Xanté Harmony Metal Plates are negative-working plates; the exposed area is what prints. Exposure to light and subsequent processing, makes the coating adhere to the plate and hardens the emulsion. In CTP systems, a negativeworking plate requires that the RIP’s job polarity is set to positive mode.

Handling Plates

A maximum of 7 days at up to 122° F or 50° C. in original packaging is tolerable for transportation. Allow recently transported plates to acclimate

24 hours before opening.

Plate packaging is not rigid so proper transport is essential. Carry plates vertically, gripping both sides. Do not carry fl at or hold by the strapping as this can cause bending and injure the plate edges. Damage to plates can affect loading, punching, and overall quality.

Load plates carefully and do not fl ex or bend them. Poor handling may cause edge damage or waviness and the VM may not load them properly.

Harmony Chemicals

Harmony chemicals are designed for Harmony Metal Plates. A complete chemistry change requires one or two, as indicated (for the Xante P24

PlateRunner Processor).

(1) - 200-300047 CTP Developer, 5.2 gallons/20 liters

(2) - 200-300048 CTP Replenisher, 5.2 gallons/20 liters

(1) - 200-300049 Litho Processor Cleaner, 2.6 gallons/10liters

(1) - 200-300050 Litho CTP Gum, 2.6 gallons/10liters

When using Harmony Violet Chemicals, be sure to follow the instructions on the Material Safety Data Sheet which can be found at www.xante.com./ msds.


Harmony Metal Plate Sizes

(Additional plate sizes may be available)

Harmony 8 mil Violet Metal Plates

10˝ X 15˝ (254 mm X 381 mm )

11˝ X 18˝ (279 mm X 457 mm)

11.25˝ X 18.5˝ (286 mm X 470 mm)

12.0625˝ X 17.375˝ (306 mm X 441 mm)

13˝ X 19.15625˝ (330 mm X 487 mm)

13˝ X 19.375˝ (330 mm X 492 mm)

13.1875˝ X 19.09375˝ (335 mm X 485 mm)

13.375˝ X 19.875˝ (340 mm X 505 mm)

15.75˝ X 18.5˝ (400 mm X 470 mm)

15.75˝ X 20.0625˝ (400 mm X 510 mm)

15.75˝ X 20.125˝ (400 mm X 511 mm)

16˝ X 17.5˝ (406 mm X 445 mm)

18.0625˝ X 20.687˝ (459 mm X 525 mm)

19.6875˝ X 23˝ (500 mm X 584 mm)

19.875˝ X 22.75˝ (505 mm X 578 mm)

20.75˝ X 25.625˝ (527 mm X 676 mm)

21.6875˝ X 26.375˝ (550 mm X 670 mm)

22.5˝ X 28.5˝ (571.5 mm X 724 mm)

24.25˝ X 28.5˝ (616 mm X 724 mm)

Part number

200-300022

200-300023

200-300024

200-300025

200-300026

200-300027

200-300028

200-300029

200-300030

200-300031

200-300032

200-300033

200-300034

200-300035

200-300036

200-300037

200-300038

200-300039

200-300040

Compatible Systems

VM2, VM2 Pl u s, VM4, VM4 NEW S













VM4, VM4 NEW S

VM4, VM4 NEW S

VM4, VM4 NEW S

VM4, VM4 NEW S

VM4, VM4 NEW S

VM4, VM4 NEW S

Plates and Light

Plates require yellow safelight with wavelengths >580 nm and illumination not higher than 250 lux for no more than 15 minutes. Because of this, it is best to store plates near the VM and to load plates quickly into the VM.

Once imaged, plates should be promptly loaded into the processor (within

10 minutes of imaging) for maximum quality. Plates have no tolerance to white light.

Plate Storage

Ideal storage conditions are the same as operating conditions: in a controlled environment of 70°F (21°C) - 78°F (26°C) and 50% ± 10% humidity. Conditions outside this range can impact plate performance.

The VM stand has 2 light-safe drawers used for plate storage. If the stand was not ordered with the VM, be sure to have light-safe drawers nearby for plate storage.

Store plates in their original light-safe paper packaging. Remove plates from one end of the packet, keeping plate packaging as intact as possible, providing maximum plate area protection from light.

Store plates away from excessive heat, cold, dust, and humidity. Ideal storage conditions are the same as operating conditions: 70°F (21°C)

- 78°F (26°C) and 50% ± 10% humidity. Conditions outside this range can impact plate performance.

Shelf life for plates is 12 months under recommended storage conditions.

See expiration date on plate package. After opening, reseal pack and use remaining plates within 4 weeks. For all other plates, follow the plate manufacturer’s specifi cations.

Imaged Plate Storage

Harmony Metal Plates are not designed for storage and most businesses store their digital fi les for future use. If plates must be stored, follow these recommendations for best results:

1. Handle carefully to minimize damage to the printed side

2. Remove ink with a mild solvent like paraffi n. The image area can be damaged by plate cleaners.

3. Clean plate with water ensuring that all ink is removed.

4. Gum the plate, preferable with a storage gum used according to manufacturer’s specifi cations, and buff dry.

5. Cover the plate with a sheet of paper to protect the surface.

6. Ensure that storage conditions are cool and dry.


Plates in the Pressroom

There is a wide variety of chemicals available in most pressrooms.

Not all conventional plate chemistries are compatible with CTP plates.

Compatibility must be verifi ed with all press chemicals that can come into contact with Harmony Violet Metal plates

For Harmony Metal Plates, it is important that fountain solutions maintain a pH level between 4.5 and 5.5. Settings outside this range may cause wear on the plate or dot alteration.

Xanté recommends an alcohol substitute be used because alcohol additives can impair run length and cause dot alteration. Of course, a clean and well-maintained press is a necessity for good performance.

To make a change, use a deletion pen and be sure the area changed is washed and re-gummed.

Chapter 4: Maintenance

Daily Maintenance

Wipe the drum out daily to clean any debris that accumulates. Xante recommends a citrus stainless steel cleaner or any good quality, nonabrasive, stainless steel cleaner. Be sure and spray the cleaner on a cloth, not directly on the drum.

Monthly Maintenance

Air Filter

Clean the air fi lter monthly to ensure good performance of the optics.

Replace any dirty air fi lters. Replacement Part numbers are: 589.71 for

VM2 and 589.81 for VM4.

Vacuum out the drum periodically.

Maintain The Environment

Maintaining a clean work environment will greatly reduce any issues that could appear with the VM. Monitor the site to ensure that these standards are consistent over time. A hygrometer that monitors temperature and humidity can help with this.

Detailed instructions are available in the


, available from

Xante Technical Support and online at

www.xante.com

.


Environmental Checklist

Light

A safelight test, as outlined in this manual, can be done to eliminate any light leaks.

Temperature

Maintain 73° F ±4% (23° C ±2%)

Humidity

Maintain 50% ±10% relative humidity

Dust and Fumes

Check the air inlet fi lter to see if there is visible dust accumulation. Contact

Xante Technical Support for more assistance.

Static

Maintain proper humidity for operating area as well as plate storage

Vibration

Locate the VM properly and protect it from excessive vibration.

Power

If surges or erratic power issues are occurring, contact the local power utility.

Cleaning VM Optics

In most cases, cleaning the optical components is only required every 6-9 months. Only perform an optics cleaning after contacting Technical Support.

A Service Technician can be hired to perform this procedure (strongly recommended for the fi rst time). Scratched optical surfaces will require eventual replacement and are NOT a warranty covered item. This procedure should ONLY be performed when necessary and as infrequently as possible to maintain good performance.

Caution:

Class 3B Laser Radiation present when Cover open and Safety

Interlock defeated. AVOID EXPOSURE TO BEAM. Strong Magnetic Fields in area of Linear Motor.

Cleaning Optics Overview

1. Confi rm that the spin motor optic is contaminated and can not refl ect a coherent image (a little fogging of the optics does not signifi cantly effect the laser spot quality).

2. Ensure that the operating environment meets specifi cations.

3. Change the air inlet fi lter as directed. If debris appears on the fi lter, consider cleaning the optics.

4. Call Technical Support before cleaning optics.

5. VM Optical cleaning kit (part # 200-300057):

· Foam tip swab

· Lens cleaning cloth

· Blower brush

· Lens cleaning video

6. Tools Required:

· #2 Phillips head screwdriver

· 5/32” Allen key

Before any maintenance procedures are performed, it is important to read and understand all of the directions.

STEP 1: Remove the Transport Cover

1. Turn off the VM and open the operator’s door.

Load an old or damaged plate, or lay down some paper toweling on the drum to ensure that a dropped screw is easily found and does not scratch the internal drum surface.

2. Press the bottom of the transport locking mechanism and slide the transport assembly to the middle of the VM.

3. Remove the two Philips head screws that attach the transport cover to the transport assembly. Carefully spread the sides of the cover open and lift it off.


STEP 2: Clean the Neutral Density (ND) Optical Lens Filters

1. Using a 5/32” Allen key, back out the stop screw for the ND fi lter arm so that the fi lter can swing out of the transport assembly.

ATTENTION: The arm is spring-loaded and can release quickly, hitting the top of the transport assembly. Be sure and hold the switch while loosening the stop screw.

2. Using a swab, with a lens cloth wrapped around it, gently swab ONCE in one direction across the fi lter surface. Do this on both sides. Turn the swab over and repeat, swabbing ONCE in one direction. Dispose of the swab.

3. Clean each of the four fi lter surfaces this way. The result should be clean surfaces with perhaps only a light water mark on the surface.

4. After using the cleaning cloth, use a clean, dry swab and gently wipe away any remaining watermarks, making sure to wipe gently in one direction.

STEP 3: Clean the Spin Motor Mirror

1. Inspect the spin motor mirror for dirt by rotating the mirror gently by hand. Depending on the model, there could be two faces of a glass prism or a single 45-degree mirror. If there is no visible sign of dirt or contamination, begin reassembly.

2. Using a swab, with a lens cloth wrapped around it, gently wipe ONCE in one direction across the mirror’s surface. Turn swab over and repeat.

Caution:

Rubbing back and forth may cause debris to scratch the mirror.

3. Use a clean swab to gently wipe ONCE in one direction across the surface and gently wipe away any remaining watermarks.

4. Dispose of the swab.

5. Do not attempt to remove or clean the lens assembly unless directed to by Technical Support. Experience has been that the lens assembly is suffi ciently recessed and cleaning is diffi cult. Removing the lens assembly will likely disturb factory focus and accuracy alignments, requiring a service call to correct.

Some VM’s may have a Lens Dust Cap Assembly mounted between the laser lens and the ND Filter Arm. In this case, cleaning of the laser lens should

NEVER be required.

STEP 4: Clean the Laser Lens

1. This lens is located on the right side across from the mirror prism and is recessed.

Using a swab, with a lens cloth wrapped around it, gently wipe ONCE in one direction across the prism surface. Turn swab over and repeat

ONCE in one direction. Dispose of the swab.

2. Let the lens air dry briefl y.


STEP 5: Reassemble

1. Re-assemble in reverse order, inserting the restraining screw and then replacing the transport cover.

2. Re-calibrate by printing a Density Group Test and fi nding the 58% tone to re-establish proper exposure.

3. Verify that the quality of the VM has been restored by imaging and processing a plate.

Calibration

It is necessary to monitor the CTP system to detect if a component or setting has changed. With OpenRIP Symphony, a Digital Control Wedge can be imaged in the gripper area of every plate. This is an easy way to monitor for change in a CTP system.

When to Calibrate

• For new emulsion/lot number of plates

• Change in plate brand, model or type

• If the Digital Control Wedge indicates a change

• If the optics have been cleaned

• When troubleshooting a specifi c issue

• When verifying all systems are at specifi cation

• After most repair or service procedures

The following are a series of calibration and verifi cation procedures. It is best to perform the calibrations in the order presented.

If any CTP system component is signifi cantly out of calibration, recalibrate the plate exposure level and possibly the RIP device linearization.

Calibrating for New Plates

Harmony Metal Plates, like all plates, vary in exposure sensitivity even for the same type of plate. For the best performance, follow this calibration procedure for the fi rst plate in each box of plates of a new emulsion/lot number.

With several different plate sizes as part of the same shipment, calibration is necessary for each different emulsion/lot number. Plate exposure sensitivity can vary +/- 20% between emulsion lots and can change as the plates age. Changing plate brand or model requires recalibration of the entire system (VM, Processor, and RIP).

If using different plate sizes, recalibrate for each size and save these settings. Different thickness or types of plates may require a different plate pre-heat temperature. This will require a second set of processor settings or fi nding an acceptable set of processor settings that will work for both plate sizes while staying within specifi cation.

STEP 1 - Calibrate the Processor

Processor brush pressure controls the removal of excess polymer from the plate. If the plate is not scrubbed adequately, it will measure as a higher screen value than it actually is. Setting exposure based on a poorly scrubbed plate would cause plates to be underexposed and print poorly, losing highlight detail.

STEP 2 - Calibration Using the Group Density Test

Tools Required:

LithoCAM and software or a CCD Dot Meter

One unexposed plate from each box of plates to be tested


Select Plate Length and Width

This procedure makes use of the VM’s built-in density test pattern.

Because of the shape and size of the test pattern, load the plate with the long edge oriented vertically inside the machine, even if that’s not the normal direction. Use the front panel to access the following menu options:

1. Press the

UP

arrow key until the display shows

SETUP MENU

2. Press the

ENTER

Key to enter

SETUP MENU

3. Press the

UP


Plate Length

to the around the drum length of the plate being used and press

ENTER

4. Press the

UP


Plate Width

to the across the drum width of the plate being used and press

ENTER

5. Press the

UP

arrow until the display shows

ENTER

EXIT TO MAIN

and press

Image & Process the Density Group Test

1. Press the

UP

arrow key until the display shows press

ENTER

SELF TEST MENU

and

2. Use the arrow keys to navigate to the

SELECT DENSITY GROUP

Menu option and press

ENTER

3. When the VM is imaging, the display will read

IMAGING DENSITY

GROUP

.

4. When complete, the message will change to

PLATE IMAGED

.

5. Press BOTH arrow keys simultaneously to reset machine for the next plate.

6. Remove the plate from the VM and process it normally.

The test will appear as a set of screened bars of varying tonal value.

Above each set of bars will be a string of computer-generated text indicating the settings used. Midway into the string of text, are the letters

“UJS”

followed by the exposure setting used for that set of bars. The last bar in each set is a 50% screen.

STEP 3 - Read the Test Plate

1. If using the LithoCAM or other CCD dot meter, launch the software for the device and follow the setup procedures.

2. Measure each of the 50% tone strips on the test plate and note the measured value and the number after the letters “UJS” in the text string above the stripe.

3. The correct exposure setting is indicated by the strip measuring closest to 56% (56%-58%)

4. Follow the steps above to change the exposure on the VM to the UJS number of the 56% strip. If there is a need to confi gure the VM for more than one setting, save each setup and its exposure values, accessed under the Setup Menu, as A-B-C or D or setup queues with different exposure settings (using OpenRIP Symphony).

Strips that measure less than 56% are underexposed, and strips that measure over 58% are overexposed. If all strips read under 56%, raise the exposure used during testing by 10 uJoules^cm2 and re-run the test. If all the strips are over 58%, lower the exposure by 10 and re-run the test until the correct reading is attained.

STEP 4 - Linearization Through The RIP

The fi nal part of calibration is to linearize the RIP device. Not every calibration will require linearization.


CHAPTER 5 Troubleshooting

Plate Loading Diffi culty

Poor plate loading technique can cause registration problems. Make sure that the plate is not being moved after it is loaded. Verify each contact works independently (and is not shorted).

Proper Loading Tips:

1. Plates should be loaded by holding fi ngers over the active contact points on the drum, in the gripper area ONLY.

2. Make sure the drum and contacts are clean. The VM checks for plate contact for only 3 seconds. If the plate is moved after the check, the

VM will not detect it.

Dirty contacts / Dirty Drum

These can cause friction or block the EOP sensor. Correct any environmental issues causing debris to accumulate. Once the drum is cleaned, change air inlet fi lter and clean contacts.

Left/right plate location not in range or EOP sensor not working

Clean the contacts and area around sensors to ensure a sensor is not blocked by either debris or dust. Correct the environment, clean the drum and change the air inlet fi lter. If loading is still an issue, contact Technical

Support.

New or untrained operators

Plate loading takes practice to master. Load plates using the proper technique previously described.

Registration

Improper plate loading can cause registration problems. Make sure the plate is not being moved after loading, and make sure each contact works independently.

Failure to Power Up

Blown main (10A) fuse

Check incoming voltage for drops (s/b >108V for 110V installations or

~200V for 220V nominal installations). There must be power at the socket as per specifi cation. Don’t plug into UPS unless it’s rated for >25A peak loads.

Vacuum Motor Pump Failure

If the VM does not operate after checking and replacing fuses, there could be a hardware issue.

Repeatability / Plate Registration

Contact adjustments

Accuracy Issues

Perform Testing

Default Error ## (number)

A programmable setting is outside of the acceptable range. Call Xante

Technical Support.


Status and Error Messages Reported on Front Panel

Error Messages

PO Test failed

Default error XX

Reload plate-EOP error

Photo error

Int clock error

Encoder error

Index missing error

One or more of the tests performed at reset failed. Indicates a problem with the Main PCB.

A programmable setting is outside the acceptable range. The XX indicates the programmable setting. Only tested at reset. Correcting the setting out of range removes this message.

EOP sensor not producing pulses. EOP sensor may be blocked, EOP sensor may need adjustment, either electrically or mechanically or there may be a hardware failure.

The laser is on, but not enough current has been detected through the laser monitor diode. Indicates a hardware failure, either the laser, Laser

PCB, Main PCB or cables.

Indicates a problem with the Main PCB during imaging.

A miscount of pulses, counted from the spin motor encoder at the start of imaging, has occured and this indicates a problem with the spin motor encoder, Transport PCB, Main PCB or cables.

No index pulse detected during imaging. Indicates a problem with the

Index position error

Motor speed error

Transport error

Transport at end

Laser temp error

VSYNC timeout

EEPROM timeout

EEPROM error

Relationship of the EOP sensor to the index pulse is out of range.

Indicates that the prism needs to rotate relative to the encoder. Should never happen in the field .

Indicates that the motor speed is out of range.

The transport circuit has reported an error. Indicates a problem with the linear motor, linear encoder, Main PCB or cables.

Transport has reached the away sensor during imaging.

Laser temperature has exceeded the acceptable range of the programmable setting +/- 1.5 degrees. Indicates a problem with the laser assembly, Main PCB, Transport PCB or cables.

RIP has not provided the proper handshake at the start of imaging.

Indicates a problem with the interface cable, Main PCB, Interconnect

PCB or interface card in the PC.

Problem saving settings or errors when writing to the non-volatile memory. Indicate hardware failure in Main PCB.

Troubleshooting Issues Appearing on the Plate

The following issues may appear on the plates after processing, or on the press.

Jitter

Jitter may look like missing scan lines or stretched or distorted images.

• Check the PCI Interface Card.

Many times these issues are caused by communication problems between the VM and the PCI interface card in the PC. Isolate the problem from the VM by running a Group Density Test from the control panel. If the issue is resolved on the self-test and issue occurs only during jobs run from the PC, check the connections of the interface cable and verify proper seating of the PCI card in the PC.

If the problem occurs when running a selftest from the front panel, call

Technical Support immediately.

Dot Loss

Dot loss may appear as midtones that drop out.

Plates:

• Check the operating and plate storage environment. High humidity can lead to dot loss and weaken solid images.

• Ensure the plates are in-date.

• Plates are not processed quickly enough; process within 10 minutes of exposure.

• Ensure the plate is fl at against the drum and has not been bent or damaged in transport.

Processor:

• Check the age and pH of the developer. Use developer and replenisher as instructed and be sure the chemicals are stored properly.

• Check the preheat and developer brush pressures.

• Check the developer temperature (too high) and the development time

(too long), as well as pre-heat temperature (too low). Adjust to correct settings.

Problem is fi xed with a developer change and increased replenishment:

If the PVA layer is not fully removed in the pre-wash, PVA can be carried through the developer and cause other press inconsistencies.


VM:

• Dirty optics: Caused by environmental contamination that must be corrected. Dirt build up on optics does not typically happen from one day to the next or even one week. If this issue is a sudden onset, look elsewhere. Call for Technical Support to confi rm problem before cleaning optics.

RIP:

• Recalibrate by running a Group Density test and fi nding the 58% tone.

• Incorrect calibration or linearization in RIP.

Dot Gain

Dot gain is a fattening of the dot and may cause plugging, residual color, or emulsion in non-imaged areas.

Plates:

• Plates fogged before or after exposure. Ensure the plate was not left too long under safelighting. Perform a darkroom test to verify safelighting and process plates within 10-15 minutes of exposure.

• Check operating and plate storage environment. High temperature or humidity can lead to plate speed increases and dot gain. Ensure the plate was transported and stored correctly.

Processor:

• Check the age and the pH of the developer. Be sure chemicals are stored properly and not old.


VM:

• Dirty optics: Caused by environmental contamination that must be corrected. Dirt build up on optics does not typically happen from one day to the next or even one week. If this issue is a sudden onset, look elsewhere. Call for Technical Support to confi rm a problem before cleaning the optics.

Uneven Tints

Uneven tints may appear as non-uniform tints around the plate or as nonuniform lines within tints. Do not confuse with tinting (when plates take on ink), which is a press-related issue.

Plates:

• Corrupted plate coating. Check the plate storage conditions and try one from a new lot number or batch.


• Check the operating and plate storage environments.

• Check the drum for cleanliness and the check air inlet fi lter to see if dust or debris are present. If they are, contact Technical Support.

Processor:

• Check the developer brush pressure is even from side to side and set correctly.

VM:

• Dirty optics: Caused by environmental contamination that must be corrected. Dirt build up on optics does not typically happen from one day to the next or even one week. If this issue is a sudden onset, look elsewhere. Call for Technical Support to confi rm the problem before cleaning the optics.

Dots or Lines

This may appear as non-uniform dot shapes/ lines in a fast scan direction

(around drum).

VM:

• Out-of-focus, faulty laser, or electronic problem. Contact Technical

Support

RIP:

• RIP Hardware: Run a selftest on the VM to isolate problem between the

RIP and the VM. If the RIP is the issue, re-seat the PCI boards and interface cable.


Banding

Jagged lines that occur when printing color breaks in gradations; caused by tonal jumps when adjacent dots become interconnected.

Plates:

• If overexposed, perform a darkroom test to ensure no light leaks are present and that safelighting is effective.

• Ensure the plates are processed within 10-15 minutes of exposure.

Processor:

• Check the developer brush pressure for banding issues parallel to the developer brushes.

• Change the developer more frequently than recommended.

• Ensure the developer is not exhausted and usage rates are within specifi cation. Replenish and check usage.

Over or Underexposure

The easiest way to establish the correct exposure is to run a Density

Grouptest from the VM control panel and adjust the VM exposure (Uj) setting so the 50% stripe measures ~57%. However, if the problem causes signifi cant dot gain on the plate, whether it’s the plate, processor, or VM, this method can result in underexposed plates. To verify that the plate exposure is correct (and that the entire system is functioning correctly), set the exposure as described, and use the analog Stouffer Step Wedge to verify that the correct range of laser light intensity.

Plates:

• Verify the operating and plate storage conditions are correct and are not allowing light, temperature or humidity to affect the plate coatings.

• Perform a darkroom test and verify the safelighting is effective. Some variations in plate sensitivity from batch to batch is normal and may require an adjustment to the VM exposure settings.

Processor:

• Check the age and pH of developer.


Fogging

Fogging may appear as background stain or density variation on the plate.

Plates:

• Plates fogged before or after exposure. Ensure the plate was not left too long under safelighting. Perform a darkroom test to verify safelighting and process plates within 10-15 minutes of exposure.

• Check the operating and plate storage environment is correct and does not allow light, temperature or humidity to affect the plate coatings.

• Ensure the plate was transported and stored correctly.

Processor:

• Check the age and pH of developer.


Abrasions in the Image

These may appear as scratches or scuff marks in the image or as scratches or pinholes in the image area.

Plates:


• Ensure the plates are in-date.

Processor:

• Check if the developer brush pressure is set too high and adjust as necessary.

• Check the developer temperature (too high) and development time (too long) as well as the pre-heat temperature (too low). Adjust to correct settings.

• Check for debris in the processor.

VM:

• Wipe and vacuum the drum to clean any debris.


Troubleshooting On the Press

PRESS PROFILE FORM

GENERAL INFORMATION REQUIRED

Please complete this form for each printing head and Platemaker. Not all questions pertain to all makes of presses. Consult your press manufacture’s manual for factory settings on roller and cylinder pressures. Make additional copies as needed.

(1) Customer/Company Name: ______________________________________________

(2) Customer #/LINX #: _______________________________

(3) Call Reference Number: _________________________

(4) Site Contact 1: ____________________________

(5) Phone: _________________ (6) Fax: _____________________

(7) Site Contact 2: ____________________________

(8) Phone: _________________ (9) Fax: _____________________

(10) Site Contact 3: ___________________________

(11) Phone: ________________ (12) Fax: ____________________

(13) Plate Size: ________________________

(14) Lot #: ________________________________________

(15) Other brand name: _______________________(16) Size: _____________________

PRESS REQUIRED INFORMATION

(17) Brief description of the problem: ________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(18) Press Manufacturer: _____________________________________

(19) Model Number: _______________________

(20) 2nd Color Head Manufacturer: ______________________________

(21) Model Number: _______________________

(22) Main Dampening system: ______________________________________________

(23) 2nd Color Dampening system: ___________________________________________

(24) Blanket Cylinder Size: _________________________________________________

(25) Water Fountain Roller (chrome or copper): _________________________________

(26) Ink Type (oil base, rubber base, soy, acrylic), Color, and Manufacturer: __________

____________________________________________________________________

(27) Fountain Concentration Manufacturer: ____________________________________

(28) Concentration (15:1; 2 oz per gallon, etc.): __________(29) pH level: ___________

(30) Conductivity of water (if measuring device is available): ______________________

(31) Conductivity of mixed solution (if measuring device is available): ______________

(32) Alcohol or alcohol substitute solution (brand, how much): _____________________

(33) Water (tap or distilled): ______________(34) pH of water: ____________________

(35) Paper size and type: ________________________________

(36) % of jobs run at this size: ____________

(37) Is paper an alkaline or acid paper (yes) ______ (no) ______

(38) Press Wash (type and manufacturer): _____________________________________

(39) If water miscible, what percentage is water and wash: ________________________

(40) Condition of ink rollers (poor to excellant): _________________________________

(41) When were the rollers last deglazed? ______________________________________

(42) Deglazer (type and manufacturer): ________________________________________

(43) Deletion Pen manufacturer: _____________________________________________

(44) Plate cleaner and/or preps used on plates, if any (type and manufacturer): _________

____________________________

(45) Shop humidity level: _____________________

PRESS AND ROLLER SETTINGS

Cylinders

(46) Plate to Blanket: __________________

(47) Is there any packing under blanket? _______________

(48) Blanket to Impression: __________________

Dampener

(50) Crestline Settings: ___________ (49) Form to Plate: ______________

(51) Kompac Settings: ___________

Ink Form Rollers (upper to lower roller)

(52) #1 Form: _______________ (53) #2 Form: _______________

(54) #3 Form: _______________

(55) Additional Comments:

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

________________________________________________________

Contact Xante Technical Support or complete this form online at www.xante.com.


Troubleshooting Plates

Plate Centering Punches

Centering-type manual punches cause VM registration problems as they will vary the registration by half the plate width. A solution to this problem is to alter existing centering punches by adding a side stop (PN 1934.01) and ignoring the centering mechanism.

Since the VM registers to one edge of the plate when imaging, it is best to punch to this same plate side. In the VM, the bottom edge of the plate should correspond to the press gripper edge, and the left side of the plate is used for side-to side registration. Most punches center the plate prior to punching which will vary the image-to-press punch location. To remedy this, bank against the VM’s registration edge in the punch and disregard the centering mechanism of the punch.

Xante supplies an easy glue-on side plate stop for the manual punch.

Installation is as follows:

1) Use the existing plate-centering device with a typical plate to determine the approximate location of the ‘new side stop’. Plan to locate the stop as close to the gripper/punch edge as possible, as this will make plate registration more accurate and more independent of plate dimensional variations.

2) Remove the plate and prepare an area to the right of the plate for good glue adhesion by cleaning the area with alcohol or another suitable solvent that leaves no residue.

3) Replace the ‘typical’ plate and position it with the centering mechanism as if you were going to punch the plate for press.

4) Without moving the plate, move the centering mechanism out of the way.

5) Remove the self-adhesive liner from the new side stop and position the radiused bump of the stop so it contacts the side of the plate. Push the new side stop down so it makes contact with the punch bed.

6) From this point, leave the punch centering mechanism out of the way and use the gripper edge with the new side stop to locate the plates for punching.


VM AC Panel Fuse Failure

If the VM Unit fails to turn on when power is applied, the most common cause is a blown fuse. If the 110V main power voltage drops excessively when the vacuum pump motor starts, the 10 Amp fuse will fail. Fuse failure is usually caused by this voltage drop since the vacuum pump draws up to 30 amps at startup. There are several reasons for insuffi cient power:

Lack of Suffi cient Power

Verify the full 110V voltage is available by measuring it. Anything less than

109 will cause the fuse to blow.

VM Shares the Line

The VM needs a dedicated line and should not be sharing the line with any other appliances.

Wiring

Verify the wiring is suffi cient for the main circuit breaker panel. It must be able to carry a rated load without any voltage drop.

Intermediate Devices Used

Intermediate devices such as extension cords, power strips, surge suppressors, and a UPS are not recommended for use with the VM. If these devices must be used, they should be of suffi cient rating to handle the current of the main circuit. This means a rating of >25A peak loads.

About Fuses

Most systems will have a spare fuse for each type in the Fuse Holder. Follow this procedure to locate a spare fuse. If there is not a spare fuse in the Fuse

Holder, purchase one of the following, available at most electronic supply stores:

10A fuse needs a 5 mm x 20 mm 10A/250V Slo-Blo Fuse

(part # 280.3-10.0 Rev 07 )

3A fuse needs a 5 mm x 20 mm 3A/250V Slo-Blo Fuse

(part # 280.3-3.0 Rev 08))

Make sure the fuses are time delay “slo-blo” as these will sustain the start-up load of the vacuum pump.

10A Fuse Replacement

Begin by checking the 10A fuse fi rst and then the 3A fuse.

1) Unplug the power cord. Never perform fuse replacement with the power cord attached.

2) Locate and identify the fuses located in the AC Panel on the back of the VM.

3) Inspect the 10A fuse located in the Fuse Holder integral to the AC Inlet on the panel. The AC Inlet is located directly beneath the 3 Amp Fuse

Holder.

4) Using a small screwdriver, gently pry open the 10A Fuse Holder and pull the Fuse Holder straight out.


The “live” 10A fuse is located at the rear of the Fuse Holder. The spare

10A fuse is located in front.

5) Remove the live 10A fuse by gently prying it straight out of the clip and inspect it for failure.

If the fuse is blown, as indicated by a broken center conductor bar, replace it with the spare 10A fuse at the front of the Fuse Holder.

6) Push the spare fuse out of the Holder from left to right (using A small screwdriver) and then “snap” it into the clip at the rear of the Holder.

Push the Fuse Holder back in place.

7) Reattach the power cord and check to see if the VM is functional. If the

VM does not turn on, locate and replace the 3A fuse.

3A Fuse Replacement

1) Inspect the 3A fuse located in the upper Fuse Holder in the AC panel.

2) To open the 3A Fuse Holder, push down on top edge of the Fuse

Holder face until it clicks, then pull the face straight out.

There are two 3A fuses in the Fuse Holder. The “live” fuse is at the rear of the Holder.


3) Remove the fuse by gently prying it straight out of the clip and inspect it for failure.

4) If fuse is blown, as indicated by a broken center conductor bar, replace it with the spare 3A fuse at the front of the Fuse Holder.

5) Using a small screwdriver, push the spare fuse out of the Holder from left to right and then “snap” it into the clip at the rear of the Holder.

Push the Fuse Holder in and “up” until it clicks into the closed position.

6) Reattach the power cord and check to see if VM is functional. If the VM does not turn on, contact Technical Support.

Darkroom Test

A darkroom test will ensure that fogging and other plate issues are not caused by lighting. A darkroom test will also tell exactly how long there is to work with plates under safelight. Safelighting performance is not something that can be seen visually, therefore it must be tested for effectiveness since conditions change and light fi xtures age. Perform this test periodically to ensure maximum plate performance.

To check the darkroom conditions:

1. Check the physical lighting equipment.

2. Perform a visual test of light leaks.

3. Perform a plate test of safelight conditions.

STEP 1: Check Lights and Bulbs

Before running a darkroom test, check the safelights – ballasts, bulbs, fi lters and housing. Be sure the housing and fi lters are properly attached and aligned; an improperly fi tted fi lter can leak light. Install a new bulb for the darkroom test.

STEP 2: Visual Test for Light Leaks

Visually check the room for any light leaks by turning off the lights.

STEP 3: Plate Test of Safelight Conditions

This procedure determines how long it takes to produce fogging on the plate. Run a 25% tone test and expose in the darkroom conditions by removing a covering plate, a small section at a time, in one-minute intervals.

Test Requirements:

• 2 metal plates – 1 can be scratch plates

• timer or watch

1) Turn off all the lights – white lighting and safelighting

2) Without any lights (white or yellow), remove a test plate from the factory light-safe packaging and load into the VM, emulsion side up

3) Run a

Select 25%

tone test from the VM Selftest menu.

4) With the lights off, remove the plate and place it on a fl at, clean surface in the darkroom.

5) Cover the exposed plate approximately 50% with another plate, then turn on the yellow light only (safelighting). Leave the plates in this position for 8 minutes.

6) Process the exposed plate.

Reading The Results

After processing, there should be no visible difference between the section of plate that was covered and the section of plate that was exposed. If there is a difference, check the room for light leaks and perform the test again until there is no visible difference on the plate.

Need picture of this test

Safelight fog correction may involve a bulb or fi lter giving off an incorrect color spectrum for the plates being used. Cracked safelight fi lters should be replaced, and ensure fi lters and housings are correctly attached.

Remember to check lighted indicators and computer screens in the area.


Technical Specifi cations

Power:

110 or 220V auto-switching; 50/60 Hz, ±2Hz, 15 amps (external vacuum pump voltage specifi c)

Interface:

Xanté parallel video interface

Imaging Speed:

scan lines per second = 208 (VM2), 816 (VM2Plus), 550 (VM4),

800 (VM4News)

Accuracy:

+/- .005” (.13 mm) maximum

Image to Plate Edge Repeatability (registration):

+/- .001” (.25 mm) typical

Image to Image Repeatability:

+/- 5 microns

Dimension/Weight:

• VM2 & VM2 Plus – 46” x 23” x 24” (117 x 59 x 61 cm) /300 lbs. (136 kg)

• VM4 & VM4 NEWS 64” x 28” x 28” (163 x 71 x 71 cm) /180 lbs. (80 kg)

Imager Engine:

Internal-Drum

Laser Type:

Violet laser diode, 60mW Violet (405 nm)

Resolution:

2540 dpi, 100 dpmm, up to 200 lpi (VM NEWS 1270 dpi, 50 dpmm, up to 180 lpi)

Spot Size:

10 microns for VM2, VM2 Plus & VM4. VM4 NEWS = 23 microns

Productivity:

• VM2: [19] 13.3” 0r [13] 20.1” wide plates per hour

• VM2 Plus: [47] 13.3” 0r [35] 20.5” wide plates per hour

• VM4 NEWS: [50] 20.5” 0r [36] 36.5” wide plates per hour

• VM4: [27] 20.5” 0r [17] 36.5” wide plates per hour

Imaging Speed:

• VM2: 208 scan lines per second

• VM2 Plus: 816 scan lines per second

• VM4 NEWS: 800 scan lines per second

• VM4: 550 scan lines per second

Format:

Images both portrait and landscape

Minimum Plate:

• VM2: XXX” x XXX” (XXX mm x XXX mm)

• VM4: XXX” x XXX” (XXX mm x XXX mm)

Maximum Plate:

• VM2: 20.88” x 19.88” (530 mm x 505 mm)

• VM4: 25” x 36.5” (635 mm x 927 mm)

Image Area:

20.88” x 19.88” (530 mm x 505 mm)

Plate Types:

All currently available violet-sensitive aluminum, silver and photopolymer plates

Plate Thickness:

•

VM2: .006” to .008” (0.15 mm to 0.2 mm)

• VM4: .006” to .012” (.15 mm to .3 mm)

Plate Handling:

Manual load and unload (yellow safe light required)

Technical Support

Xanté records and tracks all service information by device serial number. When calling for support, please have the Serial Number (S/N) and Model Number available to allow us to provide better service.

For the VM, serial number and model number information is located on the Machine

Identifi cation Label on the back of the VM.

Calling Technical Support:

• 800-926-8393 - Toll-Free within the Continental US, M-F, 7-6 pm CST

• 251-473-4920 - Local or direct long distance, M–F, 7-6 pm CST

• 251-473-4980 – FAX for Technical Support, Alabama

• 916-844-1400 – California Technical Support – M-F, 8-5 PST

• 916-962-7053 – FAX for California Technical Support

Callers will be assigned a Call Reference Number and a Xante Technician will return the call as soon as possible, for the customer’s convienence. The Call

Reference Number can be used if there is a need to call back regarding the same device. This makes return calls faster.

Email Support:

To check the status of an issue already reported: http://www.xante.com/scripts/stat.asp

To request technical support online: http://www.xante.com/webform/techsupport_form.aspx

A device Serial Number will be needed at the website. Some troubleshooting information is also available online.

Please access Xanté’s web page at: www.xante.com

1-7-08


Service Record

This record lists the Model & Machine S/N (necessary for a call to Technical

Support). This record also lists various settings from the Setup menu, Option Menu, and Service Menu. Additional handwritten information may also be listed.

Model

: _______________________

Setup Menu:

Serial Number

: _____________

Option Menu:

uJoules/cm2: _____________________ Beep Remind: ____________________

Power Level: _____________________ Plate Units: ______________________

Plate Length: _____________________ Header: _________________________

Plate Width: ______________________

Plate Thick: ______________________

Program Misc Menu:

Resolution: ______________________

Plate Type: _______________________

ImageStart LG: ___________________

ImageStart SM: ___________________

Spn Full Time: ____________________ Margin: _________________________

Spin Low Time: ___________________ Line Length: _____________________

LinearMtr PCB: ___________________ Hor Adj: _________________________

LM speed s/i: _____________________ PCB PN: ________________________

Vacuum Timeout: __________________ PCB Rev: _______________________

Vacuum Hold: _____________________ PCB S/N: ________________________

Encoder: ________________________

Laser Cooler: _____________________

Lsr Temp Set: _____________________

Display Menu:

Use Time: _______________________

Max Power LO: ____________________ Image Count: ____________________

Max Power HI: ____________________ Flash PROM Rev: _________________

EOP ujoules: ______________________ Boot PROM Rev: __________________

EOP Limit: ________________________ Xilinx Rev: _______________________

Ext Ratio: ________________________

Spin Mtr S/N:

______________

Pixel cor: _________________________

Date:

__________________________

LSR Max Pwr Voltage:

______

VLSR Voltage:

________________

Xante VM4 News User Guide

Violet Metal CTP Series

User Guide

Table of Contents

Chapter 1 - Introduction to the VM

The VM and the CTP System

How the Host RIP Works With the VM

Setup

Parts and Features

Chapter 2 - Operating the VM

Using the VM Control Panel

VM Menus

Chapter 3 - Plates

About Plates

Chapter 4: Maintenance

Daily Maintenance

Monthly Maintenance

Cleaning VM Optics

Calibration

CHAPTER 5 Troubleshooting

Troubleshooting On the Press

Troubleshooting Plates

Plate Centering Punches

VM AC Panel Fuse Failure

Darkroom Test

Technical Support

Service Record

Model

Setup Menu:

Serial Number

Option Menu:

Program Misc Menu:

Display Menu:

Spin Mtr S/N:

______________

Date:

LSR Max Pwr Voltage:

______

VLSR Voltage:

Key Features

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ECRM

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ECRM

NEWS extra

ECRM

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FC8028/01

Frequently Answers and Questions

What is the maximum speed of the VM4 News?

What is the resolution of the VM4 News?

What is the maximum plate size that the VM4 News can handle?

What types of plates can the VM4 News use?

How easy is the VM4 News to operate?

Table of contents