Ricoh SP 6330N, Service Manual

Page: 151 / 286

Service Call Conditions
SM Appendix 2-3 M047
Appendix:
T
rouble-
shooting
Guide
Code No. Symptom Possible Cause
230 B
FGATE error
ƒ Engine board defective
ƒ Controller board defective
ƒ Harness broken
The FGATE signal cannot be
detected for 1 second after the
machine has sent a start trigger.
The FGATE signal is still detected for
13 seconds after the machine has
detected the FGATE signal.
240 C
LD error
ƒ Worn-out LD unit
ƒ Disconnected or broken harness
of the LD unit
ƒ LD unit defective
The machine detects LDB error a few
times consecutively when LDB unit
turns on after LDB initialization.
300 B
Charge roller current leak
ƒ Cartridge (charge roller)
defective
ƒ High voltage supply board
defective
60% or more of the PWM duty output
is detected for 0.2 seconds when the
charge bias is generated by the
charge roller.
330 B
Development bias leak
ƒ Cartridge (development roller)
defective
ƒ High voltage supply board
defective
60% or more of the PWM duty output
is detected for 0.2 seconds when the
development bias is generated by
the development roller.
520 B
Main motor lock
ƒ Main motor defective
ƒ Harness broken
ƒ Too much load on the drive
mechanism
A main motor lock signal is not
detected for more than 700 ms after
the main motor starts to rotate, or the
lock signal is not detected for more
than a certain time during rotation
after the last signal.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA