Canon LBP-1260, Service Manual, Page: 165 / 218

6
I 4 black
Possible cause Step
Check Result Procedure
EP-E cartridge I Does the quality improve when
YES Replace the
the cartridge replaced?
High-voltage
power supply
2 Perform a test print. About one second YES Replace the
the motor starts, does the power supply PCB. If the
voltage between 13-9 and problem persists
J2 on the DC controller replacing the PCB, check by
become about 0.76 VDC? using the laser malfunction
flowchart in
section III c.
DC controller
PCB
NO Replace the DC controller
PCB. If the problem persists
after replacing the PCB,
check by using the laser
malfunction diagnosis
flowchart In Section III C.
6-19