Supplies best practiceFor HP Indigo press series 3000, HP Indigo press series ws4000 and HP Indigo press series 5000

How-to Guide

HP confidentialCopyright 2007 by Hewlett-Packard CompanyAll Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

The information furnished in this manual is for informational use only, is subject to change without notice, and should not be construed as a commitment by HP. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. All intellectual rights arising from, accruing to, and residing in this manual are the property of HP. HP assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual.

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All other products or name brands are trademarks of their respective holders.

Part Number: Q5389-04640

June 2007

ContentsHP Indigo Supplies Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 2

Who can benefit from reading this document? . . . . . . . . . . . . . . . . . . . . . 2Existing troubleshooting tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Supplies Best Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4General Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4PIP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5During printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Blanket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Installation guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5How to recover from a paper jam . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

BID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Installation guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Printing guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Preventing BID leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Substrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Substrate storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8HP approved media. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Long-term shutdown guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 9Initializing the press after a long-term shutdown . . . . . . . . . . . . . . . . . . . . 9

PIP troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10BID Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Blanket troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Obtaining support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2HP Indigo Supplies Troubleshooting

Who can benefit from reading this document?

This document provides information to operators regarding the current tools and best practices that should be used to maximize supplies performance and improve the troubleshooting process.

Existing troubleshooting tools

HP Indigo has developed several new tools to improve your troubleshooting process efficiency:z Supplies Tutorial CD - Includes an overview of the BID, PIP and blanket operating

mode, cleaning and replacing procedure using a presentation and videos. You can order the CDs from your HP Indigo customer care center using the following part numbers: CA294-02820: Supplies tutorial CD for HP Indigo 3000 press series. CA290-05520: Supplies tutorial CD for HP Indigo 5000 press series

z Print Quality Troubleshooting Assistant job: This job is used to detect the source of the print quality defect more efficiently than using any other job. The job is supplied in a CD that contains: Training on how to use the job. The job in JLT format in multilingual versions. The job consists on 9 separations of 4

full format solids, 4 gray 20, and 1 page guide on how to use the job. Download the job from the HP Indigo portal by following the links in: Technical Sup-

port, Press, Press downloads, and Test Jobs

z Ink Density Calibration Can kit: The procedure for density calibration using ink calibration cans offers the following benefits: Fast ink rebuilding Accurate ink density calibration Removes need for an external density meterThe new calibration method should be used when dealing with process issues such as: High voltage BID errors Background development on non-image areas - verify other sources such as:

Cleaning the writing head exit window. Check for the correct background qualifier value.

Color adjustment failures - verify the ILD operation first. Kit content (P/N:Q5390-00160)

4 calibration cans, 1 for each YMCK color User guide3

4Supplies Best Practice

General Guidelines

The following guidelines will help you maximize the performance of your supplies:z Maintain your HP Indigo press, grease and clean according to the maintenance

guidelines, pay special attention to the following: Replace the corona filters and cleaning station every 1 million impressions. Replace the imaging oil filter when necessary.

z Clean the ink pump density sensor, corona & grids on a weekly basis.z Verify that the cleaning station functionality and cleanness. z It is recommended that you print and file a baseline job on a daily basis. The job

should be compared to the job printed the previous day to ensure no drift in print quality. The job should be printed after performing color adjust or automatic machine LUT.

z Replacing supplies - when: There is a print quality defect caused by one of the supplies. Damage has occurred to the supply during press maintenance. A press software message informs you to replace the relevant supply. The Remote Support Engineer or the Customer Engineer has suggested replacing it.

z Before replacing the supply item: Always print the Print Quality Assistant Job to identify the correct source of issue

before replacing one of the supplies as some print quality issues maybe caused by one of the sub-systems units.

Before removing a supply, always verify the age of the item, it is not common that a new or relatively new supply item will cause a fault.

If the supply replacement does not solve the problem, call the customer care center for advice.

PIP

General guidelinesz Avoid replacing the PIP and blanket at the same time if the PIP replacement is not

necessary.z Do not bypass the imaging oil temperature control.z Do not bypass the Cold Start procedure since it includes a PIP condition process.z Replace the imaging oil filter on a regular basis, and check the oil flow rate.z Paper jams increases the risk of scratches forming on the PIP, consult your Customer

Care Center if you are experiencing on-going paper jam issues.z Wipe the cleaning station wiper on a daily basis using a lint-free pad soaked with

imaging oil. During printing clean cleaning station wiper at every press standby that occurs after 5k impressions.

z Clean the PIP grounding contact brush on a monthly basis to avoid auto-bias errors.

Installation guidelinesz Do not use excessive force to pull the PIP out of its slot.z Do not expose the PIP to a direct light.z Replace the PIP when the ITM drum reaches to 60o C to prevent PIP burn marks. z Clean the PIP underlayer with a lint-free pad soaked with imaging oil.z Push the PIP in until the marked line is aligned and centered with the drum.z Spray imaging oil under the PIP tail edge to ensure that it sticks to the drum.z Remove the protecting paper during inching to prevent rubbing marks on PIP.

During printingz If the PIP has slipped from its holder, contact the customer care center to arrange a

customer engineer visit to correct it.z Verify that the press doors are closed when performing Auto Bias and Color Adjust.z If memory from a previous job is visible, print a Print Cleaner. This will help to recover

the PIP memory.

Blanket

General guidelinesz Paper jams increases the risk damaging the blanket, consult with your Customer Care

Center if you are experiencing on-going paper jams.z Avoid using a non-HP Indigo approved paper, this may reduce blanket performance.z Long run jobs may increase the memory effect on the blanket, try to mix short runs with

long runs when possible.

Installation guidelinesz How to reduce bubbles under the blanket:

ITM drum temperature should be below 60oC degrees to prevent bubbles (hot air pockets) under the blankets.

ITM drum should be clean from any dirt or imaging oil residue. Remove the plastic from the blanket and attach a PIP capsule to the tail edge, this

will allow you to hold the blanket parallel using one hand, while the other hand presses the Inching button.

During blanket installation, apply a slight force against the drum rotation to stretch the blanket around the drum.

z After inserting the blanket clamp pins into the holes, pull the blanket upwards, to eliminate the buckle that may occur at the leading edge.

z Replace the impression paper with each blanket replacement.

How to recover from a paper jamz Immediately clean the blanket surface from any ink residue using a lint-free pad and

imaging oil, wipe any oil residue with a dry pad. z Use the rubber scraper (supplied with the press accessories) to remove any paper reside

from the hot blanket.5

z Use 80# cover paper and start with Paper Jam Handler first , then use Print Cleaner if needed.

6z Never remove the 2 empty sheets in the Print Cleaner wizard, as they are needed to reduce the blanket stickiness.

BID

General guidelinesz Avoid unnecessary BID removal from the press, since the BID roller is sensitive to

mechanical damage. z The BID unit is carefully monitored by the software, and automatic recovery is assumed

when needed. When an error occurs, it is important to follow the guidelines suggested to recover the fault.

z If the BID is replaced as part of a troubleshooting process and found to be OK, it is important to store it properly for later re-use.

z An unused BID should always be stored in its original styrofoam box for up to a year, and re-used with the same print quality. Before storing the BID, it is important to clean it in the BID washer, if available, or clean any ink residue from the developer using a lint-free wipe soaked with Imaging Oil. Follow the directions in the BID Reuse Guide.

Installation guidelinesz Do not use any sharp tool to remove the BID packing and wrapping material.

Printing guidelinesz Perform a BID drying procedure before a long break, do not wait for the 20 minute

timeout.z Clean the BID on a weekly basis using the BID washer if available.z Some missing ink coverage caused by BID pressure maybe resolved by using the BID

Engage/disengage wizard - especially for leading edge issues.z Check that the BID cooling fan is working properly on a weekly basis.z Drain the water from the solid add compressor on a regular basis to avoid water

leakage into the ink system.

Preventing BID leaksz Run the Ink Flow wizard. Set the flow to the minimum value allowed by the wizard.

Note Increase in time (sec) will reduce the ink flow.

Check the foam level in the ink tank, if it exceeds more than 80 mm during printing, rebuild the ink.

z If the BID return pipe is blocked on kinked it will result in BID leaking.z Verify that the BID hose adapter carriage is clean from any sludge build-up. Use

imaging oil and a lint-free wipe (or a brush if available).

Substrate

Substrate storagez Keep wrapped and labeledz Rewrap unneeded substratez Store substrate in a way that you can easily see the labelz Store in a clean, controlled temperature and humidity environment - recommended

ranges: Temperature: 20 ~ 26C Relative humidity (R.H.): 40 ~ 60%

z Storage temperature should be the same as print room temperature

HP approved mediaz The HP Indigo Media Partners program ensures customer access to a wide variety of

qualitative substrates.z Substrates approved by HP Indigo are tested for the following:

Runability Ink transferability Blanket-substrate compatibility Blanket temperature operating window Ink-substrate interaction7

8Long-term shutdown guidelinesIf the press will be inactive for four days or more, follow these steps to prepare the press for the long shutdown:z Dry the BID units.z Drain ink from the ink tanks into a clean container - Store this container for after

shutdown.z Remove the ink tank assembly.z Refill the ink tanks with 3.8 liters of imaging oil. Do not rebuild ink.z Remove the BID units from the press to avoid BID deterioration when the BIDs are not in

use. z Clean the developer and squeegee rollers. Perform the procedure on all BID units.z Store the BID in its original styrofoam container.z Shut down the system.

Initializing the press after a long-term shutdownz Replace the ink stored before shutdown or rebuild a new ink.z Unpack the BID units, and clean them with clean, lint-free wipes dampened with

imaging oil.z Remove the imaging oil from the ink tanks.

Note Reuse imaging oil contained in the imaging oil tank.

z Rebuild the ink in the ink tanks.z If the ink stored before shutdown is still usable (free of particulate matter), fill the tank

with it.z Rebuild the ink in the ink tanks with clean imaging oil and new ink concentrate cans.z Wipe the cleaning station blade with a lint-free wipe and imaging oil.z Initialize the press system.

PIP troubleshootingSymptom Auto Bias failure related error messagesCause z PIP is exposed to an external light.

z Poor PIP charge by the scorotrons.z Paper size is set to a paper smaller than A3, or

image placement was moved to extreme values.z Wrong electrometer readings.z Software malfunction.

Corrective actions

z Verify that all doors are closed. Protect the PIP from light during maintenance procedures.

z Verify that the PIP holder is locked, and that the PIP is fully inserted.

z Inspect the corona bias pins connections and grids, and clean with a lint-free cloth soaked in IPA. If necessary advance the scorotron wire.

z Verify that the paper size is set to A3 or SRA3 in the press software, and reset the extreme image placement settings.

z Redo the Auto Bias. If the error repeats replace PIP foil.

ROR Entry Auto Bias incomplete (age).Symptom Wide light and bright stripe across the image

(about 15 cm)

Cause z The PIP was exposed to light.z Heat damage on PIP surface due to contact with

ITM.

Corrective actions

z Verify that all doors are closed (including the PIP slide door).

z Cool the ITM drum to 60oC prior to the PIP installation.

z Use imaging oil to wash the PIP underlayer and to stick the tail edge of the PIP to the drum.

z Replace PIP. ROR Entry Wide light stripe.Symptom Ghost-like image appears on the background of another

job. This should not be confused with blanket memory which appears on all separations.

Cause z PIP old age related issue. z Faulty PTE lamp if appears on young PIP.

Corrective actions

z Check whether the PTE lamp is ON during printing.z Replace PIP foil.

ROR Entry PIP image memory.9

10Symptom z Missing dots or patches of ink from image may also appear as scratches.

z Fused ink is stuck on the PIP foil.Cause z Poor PIP surface cleaning by the cleaning station.

z High imaging oil temperature.z High ITM temperature.z Wrong ink density and conductivity readings.

Corrective actions

z Inspect the cleaning station for faulty parts (sponge roller) or for out of calibration imaging oil flow caused by clogged imaging oil filters. Replace filters if necessary.

z Verify the readings of the ink density and conductivity sensors. Clean sensors if necessary.

z Carefully clean the PIP surface with IPA and a lint-free cloth.

z Verify the correct ITM temperature settings.z Print again and inspect the print quality.z If the problem persists, replace PIP foil.

ROR Entry Fused ink.Symptom Fine light lines appear along the printed image, they are

also visible on the PIP foil at the same position (normally appears on all 4 separations).

Cause z Excessive paper jams.z A mechanical element is scratching the PIP.

Corrective actions

z Fix the cause of the paper jam.z Inspect the press for loose pieces of paper around

the PIP.z Inspect the corona and grids for loose parts.z Remove the cleaning station blade holder, and

wipe the blade using a lint-free cloth soaked with imaging oil.

z Recommendation: Wipe the blade as part of the end-of-day routines.

ROR Entry Scratches along PIP.Symptom White spots appear at a fixed position on the printed

image.

Cause Small dirt particles are stuck between the PIP and the under layer.

Corrective actions

z Before installing a new PIP, wipe the underlayer with a lint-free cloth soaked with imaging oil to remove all dirt particles.

z Inspect and clean the underlayer with a lint-free wipe soaked with imaging oil.

z Replace the underlayer if necessary.z Replace the PIP.ROR Entry White spots.

Symptom Fine horizontal cracks (longer than 5mm) visible mainly on solid images.

Cause z Excess force used during PIP installation.z A fault caused during PIP shipment.

Corrective actions

z Replace PIP and pay attention to the release force of the PIP from its capsule during installation.

z Wet the PIP underlayer with imaging oil prior to installing the PIP.

z Handle the PIP box carefully during storage.ROR Entry Cracks (white lines longer than 5mm).Symptom A defect at a fixed position is visible on print Cause Mechanical damage to the PIP during PIP replacement

or the PIP has slipped from its holder.

Corrective actions

Handle the PIP carefully as it is a very sensitive material.

ROR Entry Mounting problems: Mechanical damage.Symptom z Voids at the image leading edge only (buckle).

z Undefined mark on print appears at a fixed location on the print (wrinkle).

Cause z The buckle is caused by incorrect insertion of the PIP into the holder.

z Excess force used during PIP installation.Corrective actions

z Correct and adjust the buckle by realigning the PIP.z Pay attention to the release force of the PIP from its

capsule during installation (wrinkle).

ROR Entry Mounting problems: Buckle, WrinkleSymptom Uncategorized print quality defect or a visual defect on

the PIP.

Cause UnknownCorrective actions

z Try to clean the PIP with a lint-free cloth soaked in IPA, or correct the fault.

z Replace the PIP.

ROR Entry Other - Select Other when replacing the PIP, and explain the fault in the text line.11

12Symptom Missing highlights dots on image (normally appears on all four separations).

Cause UnknownCorrective actions

z Perform Automatic LUT in order to improve the highlights transfer.

z Replace the PIP.

ROR Entry Other - Select Other, when replacing the PIP, and type Missing Highlights in the text line.

Symptom Round or undefined white (no ink coverage) marks appear on the printed image.

Cause z The PIP underlayer is detached from the PIP drum. z Mechanical damage to the PIP underlayer (i.e.

during the removal of the cleaning station).

Corrective actions

z Replace the PIP underlayer.z Pay special attention when removing the units

around the PIP drum.

ROR Entry PIP underlayer replacement.Symptom Bands on missing image at the print tail edge.Cause Electrical burn caused by the scorotrons during the press

parking position.

Corrective actions

z Inspect the scorotron ventilation systems.z Replace the ozone carbon filters if needed.z Replace the PIP.

ROR Entry Other (select Other, when replacing the PIP, and type Scorotron band in the text line)

Symptom Unorganized colorful horizontal bands appear on the print.

Cause A loose PIP ground contactCorrective actions

z Check that the PIP is set properly in its holder.z Check that the PIP ground contact is intact.z Check that the scorotron pins are intact.

ROR Entry Other (select Other, when replacing the PIP, and explain the fault in the text line).

BID TroubleshootingUse this section to troubleshoot BID problems. Perform the first corrective action listed. If this fails to correct the problem, perform the next corrective action listed. Continue to perform corrective actions until the problem is corrected.

Symptom Partial image at the front or rear sideCause Low or unequal BID engage forcesCorrective actions

For HP Indigo press 3000 series, check following:z BID ink hoses are not too tight and can move freely.z BID Engage force; add force on the side where

image is missing, or release on the opposite side.

For HP Indigo 5000 press: z Recheck FI can move free at the FI carriage.

Call HP Indigo Service to check BID engage system arms and the engage wall wiring and adjustment.

ROR Entry Cover pressureSymptom No image at leading or trailing edge.Cause Engage or disengage angles are not calibrated.Corrective actions

z Perform the BID Engage Calibration wizard.z Call HP Indigo Service to check BID engage system

arms and the engage wall wiring and adjustment.

ROR Entry Cover pressureSymptom Large drops all over print, or ink overflow from BID or

ink contamination by other ink.

Cause Disruption in BID ink flowCorrective actions

z Verify that the ink outlet bellows and hoses are not twisted or bent.

z Use the Ink Flow wizard to check the ink flow rate and reduce the flow level to minimum.

z Check for foam in the ink tank, if foam height is over 8cm/3 inches - rebuild ink.

z Replace BID. z Check and recalibrate ink density, to prevent leaks

problem in the future

ROR Entry Leaks/ Splashes on print13

14Symptom Dark OD mark in parabola or diagonal line shape- similar to a smearing marks on prin

CauseCorrective actions

z Verify ink properties (density and conductivity) are at set point.

z Verify substrate properties and perform CA with V electrode calibration.

z Implement T/N 991z Call HP Indigo Service if the problem persists.

ROR Entry Leaks/ Splashes on printSymptom Periodic marks/stain on print at 131mm (5.16 inch)Cause Dry ink left on developer roller.Corrective actions

z Remove the BID. Clean the developer unit, and squeegee with imaging oil and a lint-free wipe.

z Verify ink properties (density and conductivity) are at set point.

z Verify substrate properties and perform CA with V electrode calibration.

z If problem still occurs, rebuild ink.z Otherwise, replace the BID.

Note: It is recommended to perform Dry BID before any long break, in order to reduce stain occurrence.

ROR Entry Stain on developer rollerSymptom Marks/stain on print at 131mm (5.16 inch) period.

First verify if the marks are due to dry ink on developer roller (above).

Cause z Random cuts damage on the developer roller. Most mechanical defects are caused by improper BID handling, especially when inserting and removing the BID.

z BID roller grinding or cracks (occurs when the BID is engaging the PIP when it should not).

Corrective actions

z If the BIDs are engaging the PIP while not in printing mode, call HP Indigo Service.

z Remove unused BIDs from press (5, 6, 7, colors) when press is configured to 4 colors only- store BID according instruction, to prevent wrong BID engaging.

z Replace the BID if damaged.ROR Entry Developer Surface Damage

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Symptom Thin, straight horizontal line at 131 mm (5.16 inches) period on print.

Cause "Burned strip caused if the BID has stopped rotating with voltage applied.

Corrective actions

z Dry ink on developer may produce similar print defect. Remove the BID and clean the developer unit and squeegee with imaging oil and a lint-free wipe. If the mark is eliminated reinstall the BID.

z Replace the BID if damaged. Run the BID diagnostic wizard after the installation, and verify that the new BID motor is rotating, If BID is not rotating, Call HP Indigo Service.

ROR Entry Burned strip on developer rollerSymptom Periodic horizontal line at 131, 52, 33, 4.4, 2.2 mm

(5.16, 2.05, 1.3, 3/16, 0.09 inches) also considered as BID banding

Cause z Dry ink on the developer or squeegee rollersz Internal BID failure

Corrective actions

z Remove the BID. Clean the developer unit, and squeegee with imaging oil and a lint-free wipe.

z Otherwise, replace the BID.

ROR Entry Banding-horizontal line.Symptom A memory of the Image at 131mm (5.16inch) period.Cause z Ink conductivity is too high.

z BID high voltage settings are too high.Corrective actions

If image memory occurs in more than one color, then the problem is probably related to the blanket or PIP, if otherwise check the following:z Verify ink properties (density and conductivity) are

at set point.z Verify correct substrate gloss or matte properties

and perform CA with V electrode calibration.z Check for water residue in the ink solid adds

system. Disconnect the can air pipe, activate the solid add and watch for water spray, if there is water residue: Drain the water tank at solid add compressor. Rebuild the relevant ink.

z If the above actions do not solve the problem replace the BID.

If problem persist :z Refresh the ink by drainage of 200 cc and repeat

CA with V electrode.z Call HP Indigo Service.

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ROR Entry Image Memory

16Symptom Background development on non-image areas.Cause z Non-BID related issues:

Writing head window dirtiness Scorotron grids and rewind the wires issues.

z High BID high voltage values.Corrective actions

z Clean writing Head windowz Clean scorotron grids and rewind the wires.z Verify ink properties calibration (density and

conductivity).z Verify correct substrate gloss or matte properties

and perform CA with V electrode calibration.z Otherwise, replace the BID.

If problem persist :z Refresh the ink by drainage of 200 cc and repeat

CA with V electrode.z Call HP Indigo Service.

ROR Entry Other- Background.Symptom Vertical lines along the print.Cause Non-BID related issues:

z Scratches on PIP. z Faulty cleaning station wiper. z Dirty scorotron. z Dirty writing head window.z Loose piece of paper stuck around the blanket.

Use the print quality assistant job to locate the problem source.z BID related issues: internal ink sludge build up in

the BID.

Corrective actions

z Check the ink density, calibrate if necessary.z Verify correct substrate gloss or matte properties

and perform CA with V electrode calibration.z Otherwise, replace the BID.

If problem still occurs:z Rebuild ink.z Call HP Indigo Service

ROR Entry Streaks (line along the print)

Symptom Non-uniform lines along the printCause z Low ink flow rate.

z Disturbance in the ink flow to the BID.Corrective actions

z Verify that the flexible ink hoses connections are not bent.

z Check for a clogged ink pump filter or noises from the ink pump motor.

z Use the Ink Flow wizard to check the ink flow rate and reduce the flow level to minimum.

z Wash the BID at the BID washing station if available.

z Otherwise, replace the BID.ROR Entry Other- Low ink flow.Symptom HVIF no go received

HVIF BID current failure

HVIF BID voltage failure

CauseCorrective actions

z Use the BID wizard to check for all HVIF problems, and follow the error message instructions.

ROR Entry High voltage/ current problem.17

18Blanket troubleshooting

Symptom The Paper stuck to blanket error message appears.Cause Paper transport failure.Corrective actions

z Remove the paper from the blanket.z Check the paper-transport system.z Run the Paper Jam Handler wizard and inspect the

results.z If the results are not satisfactory, replace the

blanket.

Reporting code

When there is a problem with the paper-transport system, and the blanket is damaged: Paper stuck to blanket; unable to remove paper/ink from blanket

Symptom z The Paper stuck to blanket error message appears.z There is an inconsistent separation shift on the print.

Cause The blanket is too sticky.Corrective actions

z Check that the correct blanket temperature is set.z Check the paper-transport system.z Run the Paper Jam Handler wizard and inspect the

results.z If the results are not satisfactory, replace the

blanket.

Reporting code

z When there is no problem with the paper-transport system, and the blanket is damaged: Stickiness causes mis-registration or repeated paper jams.

Symptom Segments of ink are missing from the image-following maintenance to the blanket area.

Cause z The blanket was damaged during maintenance.Corrective actions

z Run the Print Cleaner wizard and inspect the results.z If the results are not satisfactory, replace the

blanket.

Note: The blanket damages easily! Be careful when working in the blanket area to prevent damage to it.

Reporting code

Mechanical damage-other than dents

Symptom z Ink remains on the blanket.Cause z Paper misfeedCorrective actions

z Check the paper-transport system.z Run the Paper Print Cleaner wizard and inspect the

results.z If the results are not satisfactory, replace the

blanket.

Reporting code

Paper misfeed: Unable to remove the ink from blanket

Symptom A defect appears on the blanket following the paper jam error message.

Cause The blanket was damaged during a paper jam.Corrective actions

z Remove the paper from the blanket (if necessary).z Check the paper-transport system.z Run the Paper Jam Handler wizard and inspect the

results.z If the results are not satisfactory, replace the

blanket.

Reporting code

Paper jam; paper caused defects (dents) in blanket.

Symptom Dots or segments of ink are missing from the image.Cause Ink is stuck to the blanket.Corrective actions

z Run the Paper Print Cleaner wizard and inspect the results.

z If the results are not satisfactory, replace the blanket.

Note: Make sure that only HP Indigo-recommended paper is used.

Reporting code

Release loss-ink does not transfer completely to paper.

Symptom z A ghost of the previous image is visible on the print.z A ghost of the previous image is visible on the

blanket, although there is no ink residue on it.

Cause Repeated printing of the same image leaves a lasting impression on the top layer of the blanket.

Corrective actions

z Replace the blanket.z Reduce the memory effect by running small jobs in

the middle of large jobs.

Note: Make sure that only HP Indigo-recommended paper is used.

Reporting code

Blanket memory-gloss memory of previous image.19

20Symptom Fine horizontal lines appear in solid areas of the print.Cause z The blanket temperature is too low.

z There is too much ink coverage.Corrective actions

z Check that the correct blanket temperature is set.z Check that all ITM-drum fans and blowers are

operating.z Reset color-match correction for the solid areas.z If the prints are still not satisfactory, replace the

blanket.

Reporting code

Cracks: Horizontal lines on print, only in areas of high coverage.

Symptom z Cropped image on one of the long edges.z Missing image close to the leading edge of the

paper.

Cause z The blanket was mounted skewed.z The blanket became loose from its clamp.z The blanket clamp is not fully inserted into the drum.

Corrective actions

z Make sure that the blanket clamp is completely inserted into the drum and that the blanket is securely in place. Try to remount the blanket by turning the drum backwards, pay attention to the impression paper.

z If the prints are still not satisfactory, replace the blanket.

Reporting code

Blanket slipped from place (sideways or toward holder).

Symptom Dark, round or elliptical spots appear immediately after blanket replacement (especially noticeable on dark gray areas).

Cause Air bubbles are trapped under the blanket.Corrective actions

z Replace the blanket.z When installing the new blanket:

Wait until the ITM drum temperature has reached 60 C before installing.

Make sure that the impression drum is engaged. Refrain from selecting bypass when performing

a cold start.

Reporting code

Bubbles under the blanket (soon after installation)

Symptom Segments of the image are missing (immediately after blanket replacement).

Cause Bumps have formed on the blanket due to foreign matter trapped underneath. The defect on the blanket surface causes a misprint in the corresponding area of the paper.

Corrective actions

z Carefully peel off the blanket and try to remove the foreign matter.

z Replace the blanket and print a test page.z If the prints are still not satisfactory, call for service.

Reporting code

Mark on blanket/print (soon after installation)

Symptom No image is printed; the press makes an unusual noise.Cause The blanket has broken free of its clamp.Corrective actions

z Check for any damage caused by the loose clamp.z Check for worn ITM drum clamps holes; if found,

call service.z Verify that the blanket clamp is fully inserted into

the drum.z Replace the blanket.

Reporting code

Blanket clamp (holder).

Symptom Light horizontal bands appear randomly on the print.Cause z There is a short circuit between the blanket and the

ITM hood or the impression drum.z The impression paper has slipped.z A bias contact is loose.

Corrective actions

z Make sure the trailing edge of the blanket is fully attached to the drum.

z Check the position of the ITM hood.z Inspect the ITM bias contact and clean if necessary.z Inspect the impression paper and replace, if

necessary.z Clean the PTE and check its functionality.z If the prints are still not satisfactory, replace the

blanket.

Reporting code

Bias problem.21

22Symptom z Pale image, dull gray levels.Cause z There is no bias contactCorrective actions

z Inspect the ITM bias contact and clean, if necessary.

z If the ITM high-voltage error appears, follow the instructions in the error message box.

z If the prints are still not satisfactory, replace the blanket.

Reporting code

Bias problem.

Symptom Uncategorized print defect or visual defect on the blanket.

Cause z Unknown.z Blanket installation failure.

Corrective actions

z Try to clean the blanket or correct the fault.z If the prints are still not satisfactory, replace the

blanket.

Reporting code

Other. Please describe the problem on the text line.

23

Obtaining supportTo obtain service and support, please contact the HP Indigo customer care center (CCC) within your country/region:

Europez Germany: +49 (0) 6995307080z France: +33 (0) 149932498z UK: +44 (0) 2072950038z Italy: +39 0 238591081 z Belgium: +32 (0) 26264803z Netherlands +31 (0) 43 3565900z Luxembourg: +352 (0) 2730 2067z Ireland: +353 (0) 1 605 8409

Distribution Channels (DC):z +31 (0) 20 6545543

North America: z 1-800-204-6344

Israel:z +972 8 938 1818

reorder: P/N Q5389-04640

Copyright 2007 Hewlett-Packard Company

This is an HP Indigo digital print. Printed in Israel.

www.hp.com/go/indigo

ContentsHP Indigo Supplies Troubleshooting 2Supplies Best Practice 4Long-term shutdown guidelines 9PIP troubleshooting 10BID Troubleshooting 14Blanket troubleshooting 19Obtaining support 23HP Indigo Supplies TroubleshootingWho can benefit from reading this document?Existing troubleshooting tools

Supplies Best PracticeGeneral GuidelinesPIPGeneral guidelinesInstallation guidelinesDuring printing

BlanketGeneral guidelinesInstallation guidelinesHow to recover from a paper jam

BIDGeneral guidelinesInstallation guidelinesPrinting guidelinesPreventing BID leaks

SubstrateSubstrate storageHP approved media

Long-term shutdown guidelinesInitializing the press after a long-term shutdown

PIP troubleshootingBID TroubleshootingBlanket troubleshootingObtaining supportEuropeDistribution Channels (DC):North America:Israel:

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