Lexmark C935 - Black Toner Cartridge Detection Error

Diagnostic information 2-51
5057-XXX
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Black toner cartridge detection error
10
Check the MPF/transport drive motor for proper connection.
Is the above component properly connected?
Replace the MPF/
transport drive
motor
.
Go to “MPF /
transport drive
motor assembly
removal” on
page 4-114.
Replace the
connection.
11
Perform a print test.
Does the error continue?
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 Check the black toner cartridge for proper installation.
Is the above component properly installed?
Go to step 3. Reinstall the black
toner cartridge.
2
Replace the black toner cartridge.
Does the error continue?
Got to step 3. Problem solved.
3
Check the sensor (RFID toner cartridge) for the black toner
cartridge for proper connection.
Is the above component properly connected?
Replace the
sensor (RFID
toner cartridge).
Go to “Sensor
(RFID toner
cartridge)
removal” on
page 4-117.
Replace the
connection.
4
Perform a POR.
Does the error remain when the power is turned off/on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine
card assembly
removal” on
page 4-90.
Problem solved.
5
Perform a POR.
Does the error remain when the power is turned off/on
again?
Replace the RIP
card assembly.
Go to “RIP card
assembly
removal” on
page 4-86.
Problem solved.
Step Check Yes No