2-12 Printer Service Manual
5057-XXX
907.03
Printhead error
C laser SOS internal error The interval of the printhead start of scan C signals
exceed the specified value.
Go to “907.03 M laser SOS internal error” on
page 2-97.
907.04
Printhead error
K laser SOS internal error The interval of the printhead start of scan K signals
exceed the specified value.
Go to “907.04 K laser SOS internal error” on
page 2-97.
907.05
Printhead error
Printhead control error Operation error of the printhead ASIC in the printer
engine. An error occurred during the read/write test.
Go to “907.05 Printhead control error” on
page 2-98.
908.00
Service engine
error
Waste toner full error After the sensor (waste toner full) turned on, the
pixel count exceed the specified value.
Go to “908.00 Waste toner full error” on
page 2-98.
911.00
Service engine
error
24V LVPS cooling fan error When the 24V LVPS cooling fan was operating, fan
lock was detected for more than 30 seconds.
Go to “911.00 24V LVPS cooling fan error” on
page 2-99.
911.01
Service engine
error
Transfer belt drive motor
cooling fan error
When the transfer belt drive motor cooling fan was
operating, fan lock was detected for more than 30
seconds.
Go to “911.01 Transfer belt drive motor cooling
fan error” on page 2-99.
911.02
Service engine
error
Fuser cooling fan lock error When the Fuser cooling fan was operating, fan lock
was detected for more than 30 seconds.
Go to “911.02 Fuser cooling fan lock error” on
page 2-100.
918.00
Service std. bin
1 error
Standard media exit shift
error
An internal processing error occurred in the upper
printer engine card assembly.
Go to “918.00 Standard media exit shift error” on
page 2-100.
920.00
Service fuser
error
Fuser main lamp overheat
error
The front thermistor detected an abnormal high
temperature.
This error must be reset inside diagnostic mode
before troubleshooting or machine operation can
occur.
Go to “920.00 Fuser main lamp overheat error”
on page 2-101.
920.01
Service fuser
error
Front thermistor
disconnection error
The system detected an open circuit in the fuser
front thermistor.
Go to “920.01 Front thermistor disconnection
error” on page 2-101.
Error code or
message
Error contents Description/Action