Lexmark C792 Family, Service Manual

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Diagnostic information
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Output option paper jams
400–403 paper jams
Additional checks—400–403 paper jams
Error code Description Action
400.20 - 400.32 HTU motor error 1. POR the machine.
2. If the problem persists, replace the HTU
transport motor. See “HTU transport motor
removal” on page 4-331 .
3. POR the machine.
4. If the problem persists, replace the HTU
controller card. See “HTU controller card
removal” on page 4-289 .
401.01 HTU input sensor static jam Go to “401.xx—HTU input sensor error service
check” on page 2-117 .
401.02 HTU input sensor early arrival paper
jam
Possible cause:
• Loose HTU input sensor
1. POR the machine.
2. Check if the HTU input sensor is damage or
loose. See “HTU sensor (input) removal” on
page 4-322 to access the sensor.
401.03,
401.08
HTU input sensor late arriving jam Go to “401.xx—HTU input sensor error service
check” on page 2-117 .
401.04 HTU input sensor early leaving jam
Possible cause:
• Incorrect paper settings
• Defective HTU input sensor
1. Clear away anything in the paper path that might
cause the paper to jam.
2. Be sure the paper settings match the media.
3. Go to
“401.xx—HTU input sensor error
service check” on page 2-117 .
401.05,
401.07
HTU input sensor breaks late or never
breaks paper jam
Possible cause:
• Incorrect paper settings
• Defective HTU input sensor
1. Clear away anything in the paper path that might
cause the paper to jam.
2. Be sure the paper settings match the media.
3. Go to
“401.xx—HTU input sensor error
service check” on page 2-117 .
402.01 HTU exit sensor static jam Go to “402.xx—HTU output sensor error service
check” on page 2-118 .
402.02 HTU output sensor early arrival paper
jam
Possible cause:
• Loose HTU output sensor
1. POR the machine.
2. Check if the HTU input sensor is damage or
loose. See “HTU sensor (output option
position) removal” on page 4-323 to access
the sensor.
402.03,
402.08
HTU exit sensor late arriving or never
arrived jam Go to “402.xx—HTU output sensor error service
check” on page 2-118 .
402.04 HTU output sensor early leaving
paper jam
Possible cause:
• Incorrect paper settings
• Defective HTU output sensor
1. Clear away anything in the paper path that might
cause the paper to jam.
2. Be sure the paper settings match the media.
3. Go to
“402.xx—HTU output sensor error
service check” on page 2-118 .