Diagnostic information 2-51
7500-432, -632, and -832
3 Check the roll.
Open the duplex left door assembly.
Is the duplex media transport roll assembly free of
excess wear and contamination?
Go to step 4. Clean or replace the
duplex media
transport roll
assembly.
Go to “Duplex
media transport
rolls removal” on
page 4-320.
4 Check the drive power transmission.
Open the duplex left door assembly.
Do the duplex media transport roll assembly and the
other gears rotate smoothly?
Go to step 5. Replace damaged
components.
Go to “Duplex
media transport
rolls removal” on
page 4-320.
5 Check the roll.
Open the duplex left door assembly.
Is the duplex media transport center roll assembly free
of excess wear and contamination?
Go to step 6. Clean or replace the
duplex media
transport center roll
assembly.
Go to “Duplex
media center
transport roll
removal” on
page 4-321.
6 Check the drive power transmission.
Open the duplex left door assembly.
Do the duplex media transport center roll assembly and
the other gears rotate smoothly?
Go to step 7. Replace damaged
components.
Go to “Duplex
media center
transport roll
removal” on
page 4-321.
7 Check the duplex drive motor for proper operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch Duplex drv mtr.
Open the duplex left cover assembly.
Does the above motor rotate properly?
Go to step 9. Go to step 8.
8 Check the duplex drive motor for proper connection.
Is the above motor connected properly?
Go to step 9. Replace the
connection.
9 Check the duplex controller card assembly and printer
engine card assembly for proper connection.
Are the connections on the duplex controller card
assembly and the connector P417 on the printer engine
card assembly connected?
Go to step 10. Replace the
connection.
10 Perform a 2 sided print test.
Does the error still occur?
Replace the duplex
controller card
assembly.
Go to “Duplex
controller card
assembly removal”
on page 4-311.
Go to step 14.
Problem solved.
Step Check Yes No
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