Lexmark C935 Series, Service Manual

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Diagnostic information
2-105
5057-XXX
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920.07 Sub lamp on-time error
924.00 Yellow PC smartchip communication error
5
Perform a POR.
Does the error occur when the power is turned off/on?
Replace the AC
drive card bracket
assembly.
Go to “AC drive
card bracket
assembly
removal” on
page 4-109
.
Problem solved.
Step Check Yes No
1 Check the fuser unit assembly for a media jam.
Is there a media jam in the fuser unit assembly?
Remove the
media. Go to step 2.
2
Check the fuser unit assembly for proper installation.
Is the fuser unit assembly installed properly?
Go to step 3. Install the fuser
unit assembly
properly.
3 Check the fuser unit assembly for proper connection.
Is the above component properly connected.
Go to step 4. Repair the
connection.
4 Perform a print test.
Does the error continue?
Replace the fuser
unit assembly.
Go to “Fuser unit
assembly
removal” on
page 4-15
.
Go to step 5.
Problem solved.
5 Perform a POR.
Does the error occur when the power is turned off/on?
Replace the AC
drive card bracket
assembly.
Go to “AC drive
card bracket
assembly
removal” on
page 4-109
.
Problem solved.
Step Check Yes No
1 Check the Y PC cartridge for proper installation.
Is the above component properly installed?
Go to step 2. Reinstall the Y PC
drum.
2 Install the Y PC drum in one of the other three PC locations.
Ensure that all PC drum slots contain a PC drum. Perform a
POR.
Does the error remain or follow the problematic cartridge?
Replace the
problematic PC
drum with a new
one. Go to step 3.
3 Check the appropriate smartchip socket, located on the
developer interlock plate assembly for proper connection.
Is the above component properly connected?
Go to step 4. Replace the
connection.
Step Check Yes No