120 Error Code - Lexmark 13P0195 - C 750dn Color Laser Printer Service Manual

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5060-00x
Step
Action and questions
10
Check to see if the ITU drive motor is turning during
POR. Observe the ITU motor during POR by removing
the rear cover.
Is the ITU drive motor turning?
11
Make sure the ITU drive motor assembly cable is
correctly installed to the ITU drive motor and at
connector location J64 on the engine board.
Is the cable correctly installed?
12
Make sure the ITU autoconnect cable is installed
correctly at connector location J72 on the engine
board.
Is the cable correctly installed?
13
Make sure the ITU autoconnect connector in the printer
is seated correctly in the connector plate.
Is the connector seated correctly?
14
Check continuity of the ITU autoconnect cable.
Is there continuity?

120 Error code

An incorrect hot roll lamp is installed.
CAUTION: Make sure the lamp is cool before removing it from the assembly.
The Hot Roll and Backup Roll may have the wrong voltage lamp installed.
Step
Action and questions
1
Is the correct fuser assembly installed in the printer?
See
"Fuser" on page 7-8
2
Is the correct fuser hot roll lamp installed in the fuser
assembly? See
number.
2-44
Service Manual
for the part number.
"Fuser" on page 7-8
for the part
Yes
No
Replace the ITU
Go to step 11
assembly. See
"ITU assembly
removal" on
page 4-37
Go to step 12
Install the cable
correctly
Go to step 13
Install the cable
correctly
Go to step 14
Install the
connector/cable
correctly
Replace the
Replace the ITU
following FRUs in
autoconnect cable
the order shown:
1. ITU assembly.
See
"ITU
assembly
removal" on
page 4-37
2. Engine board.
See
"Engine
board
removal" on
page 4-29
Yes
No
Go to step 2
Install the correct
fuser assembly.
See
assembly
removal" on
page
Go to step 3
Install the correct
fuser lamp in the
fuser assembly.
"Fuser
4-31.

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