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Infoprint 1222
Black Page
Note: Incorrect laser exposure or incorrect charging of the
photoconductor by the charge roll causes an all black page.
FRU
HVPS Contacts
RIP Card Assembly
Controller Card
HVPS Cable
HVPS
Left Guide Assembly
Action
Check the contacts for
contamination and correct
installation. Replace as necessary.
Ensure the HVPS to RIP card and
charge roll cables are correctly
installed.
Check continuity of the charge roll
cable from C (printed on outside
HVPS) to the bushing at the right
side of the charge roll.
• If continuity fails, replace the left
guide assembly.
Check continuity from the charge roll
left side bushing to the right side
shaft.
• If continuity fails, remove the
charge roll and clean the left side
shaft and bushing.
See
"High Voltage Power Supply
(HVPS)" on page 5-12
the voltage measurements.
• If the +24 V dc and +5 V dc input
voltages are correct, replace the
HVPS.
• If the voltages are not correct, see
"RIP Card Service Check" on
page
2-28.
• Check continuity on the HVPS/
RIP card cable.
Diagnostic Information
and check
2-47
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