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Transfer roll service check
Step
Questions / actions
1
Remove the ITU. See
(ITU)" on page
between the HVPS and the ITU. Clean the
contacts and recheck.
Does the error reoccur?.
2
Does the new ITU fix the problem
Turn the printer off, and remove the rear
3
shield.
See"Rear shield removal" on
page
4-7.
. Turn the printer on, and check the cable at
JHVPS1 connector on the controller board
without disconnecting it. Verify the following
voltage values:
Are the values approximately correct?
Y112730-2
"Image transfer unit
4-35. Check the contacts
JHVPS1
Pin
Voltage
7
+3.3 V dc
10
+3.3 V dc
11
+3.3 V dc
13
+24 V dc
14
Ground
16
Ground
Yes
Replace the ITU. See
"Image transfer unit (ITU)"
on page
4-35.
Go to step 2.
Problem resolved.
Replace the
HVPS"High-
voltage power supply
(HVPS) assembly
removal" on page
4-31.
No
Problem resolved.
Go to step 3.
Replace the controller
board. See
"Controller
board removal" on
page
4-18.
Diagnostic information
2-59
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