Service Call Conditions
D017/D018/D019/D020 4-10 SM
TD sensor abnormal
Poor connection of the PCU
391 B Development bias leak
A development bias leak
signal is detected.
Poor connection at the PCU bias
terminal
High voltage supply board defective
392 B TD sensor initial setting error
Initialization of the new PCU
unit failed (the drum and
development roller did not
start rotating).
The PCU toner seal was not removed
ID sensor harness loose, broken
TD sensor harness loose, broken
ID sensor defective
TD sensor defective
398 B
PCU error (South Korea only)
Illegal PCU unit. Install the correct type of PCU.
399 B
Illegal toner bottle (South Korea only)
The installed toner bottle installed is not
intended for use with this machine.
Install the correct type of toner
bottle.
401 B Transfer roller leak error 1
A transfer roller current leak signal wad
detected. (The current feedback signal
for the transfer roller was not detected
within the correct time.)
High voltage supply board set
incorrectly or defective
Transfer roller set incorrectly
or damaged
Transfer unit set incorrectly
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