Canon LBP-1260, Руководство по обслуживанию

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I - 3 Completely blank
Possible cause Step Check Result Procedure
DC controller
About one second after the main NO
Replace the DC controller
PCB
motor starts, does the voltage between PCB.
and
on the DC controller PCB change from
about 5 VDC to 0 V?
High-voltage
power supply
PCB
(Developing
bias)
2
Perform a test print. About YES Check whether the
seconds after the main motor starts. voltage contact Is making
does the voltage between good contact the
and on the DC developing bias contact of
controller PCB become about 0.76 the cartridge. If it is. replace
VDC? the high-voltage power
supply PCB. If the problem
persists after replacing the
PCB, check by using the
laser malfunction diagnosis
flowchart In
III C.
DC controller
PCB
NO Replace the DC controller
PCB. If the problem persists
after replacing the
check by using the laser
diagnosis
flowchart in III C.
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