HP Indigo 30000 CA493-00130 Rev - Page 23

Troubleshooting table

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- The current reading of the charge roller - The current reading of the balancing roller - The current reading of the electrometer Troubleshooting table The following table describes symptoms, possible causes, and corrective actions. Symptom / Error Message Oil pick-up, edge bands, dark dots, and charge roller rings PIP charge below minimum limit Possible Cause Print quality issues Engage issue or conduction issue Auto Bias failure Charge roller leveling Corrective Action Select Menu > Print Care > Print Quality Assist. Look for the relevant defect. ● Engage issue: Make sure that the charge roller housing touches the location pins during engage. ● Conduction issue: - Make sure that the wiring and carbon brushes are good. - Make sure that the charge roller is installed. - Make sure that the charge roller leveling process is successfully completed. ● Close the doors. ● Make sure that the PIP foil has not slipped from its holder. 1. Run the charge roller leveling. Select Print Care > Diagnostic and Troubleshooting > Tests (the second tab) > Engine > Charge Roller > Leveling Calibration. 2. Run the Auto Bias wizard. 3. Bypass the charge roller activation. In Systab, set BypassTableTopic > crJosActive to True. 4. Run the Auto Bias wizard again. Troubleshooting table 21

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–
The current reading of the charge roller
–
The current reading of the balancing roller
–
The current reading of the electrometer
Troubleshooting table
The following table describes symptoms, possible causes, and corrective actions.
Symptom / Error Message
Possible Cause
Corrective Action
Oil pick-up, edge bands, dark dots, and
charge roller rings
Print quality issues
Select
Menu
>
Print Care
>
Print Quality
Assist
. Look for the relevant defect.
PIP charge below minimum limit
Engage issue or conduction issue
●
Engage issue: Make sure that the
charge roller housing touches the
location pins during engage.
●
Conduction issue:
–
Make sure that the wiring and
carbon brushes are good.
–
Make sure that the charge roller
is installed.
–
Make sure that the charge roller
leveling process is successfully
completed.
●
Close the doors.
●
Make sure that the PIP foil has not
slipped from its holder.
Auto Bias failure
Charge roller leveling
1.
Run the charge roller leveling.
Select
Print Care
>
Diagnostic and
Troubleshooting
>
Tests
(the second
tab) >
Engine
>
Charge Roller
>
Leveling Calibration
.
2.
Run the
Auto Bias
wizard.
3.
Bypass the charge roller activation.
In Systab, set
BypassTableTopic >
crJosActive
to
True
.
4.
Run the
Auto Bias
wizard again.
Troubleshooting table
21