2-74 Printer Service Manual
5057-XXX
904.00 Sensor (transfer belt HP) late error
3
Check the CMY developer drive motor assembly for proper
connection.
Is the above component properly connected?
Replace the CMY
developer drive
motor assembly.
Go to “CMY
developer drive
motor assembly”
on page 4-100.
Replace the
connection.
4
Perform a POR.
Does the error occur when the power is turned off/on?
Replace the lower
printer engine card
assembly.
Go to “Lower
printer engine
card assembly
removal” on
page 4-93.
Problem solved.
Step Check Yes No
1 Reset the transfer belt HP failure lock out condition.
1. Enter the Diagnostics Menu.
2. Touch Trans belt fail HP.
3. Touch Trans belt fail HP.
Is the transfer belt torn, damaged, or missing?
Replace the
transfer belt.
If the problem
persists, go to the
next step.
Go to step 3.
2
Perform a POR.
Does the error occur when the power is turned off/on?
Go to the next
step.
Perform several
print tests.
If the problem
persists, go to the
next step.
3
Did the error occur following a developer unit replacement? Verify the
developers are
installed correctly.
See “Developer
unit assembly
removal” on
page 4-53.
If the problem
persists, go to the
next step.
Go to the next
step.
4
Is the transfer belt torn, damaged, or missing? Replace the
transfer belt.
If the problem
persists, go to the
next step.
Go to the next
step.
5
Check to ensure that the transfer belt lift mechanism is
functioning properly. See “Transfer belt lift mechanism
adjustment” on page 4-228.
Does the error remain?
Go to the next
step.
The problem is
resolved.
Step Check Yes No