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Error code 71
Print Unable 71
Turn the power off and then back on again.
Polygon motor failure
Error code 72
Print Unable 72
Turn the power off and then back on again.
Beam detecting sensor (K) failure
Error code 73
Print Unable 73
Turn the power off and then back on again.
Beam detecting sensor (C) failure
Step Cause
Remedy
1 Laser unit harness connection
failure
Check the two harness connections of the laser
unit and reconnect them.
2 Laser unit failure Replace the laser unit.
3 Engine PCB failure Replace the engine PCB ASSY.
Error code 74 (* This error can be found out only in “Maintenance mode 82”.)
Print Unable 74
Toner cartridge whose color is used reaches the end of life during printing.
User Check
- If any of the toner cartridges reaches the end of life, replace it with a new one.
Step Cause
Remedy
1 Toner sensor PCB (TE/NEW)
failure (Toner empty)
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the toner sensor PCB
(TE/NEW) of the appropriate color.
2 Engine PCB failure Replace the engine PCB ASSY.