Canon LBP-860 Service Manual page 180

M-9 1 "12 PRINTER OPEN" appears even though the printer is closed.
Upper cover
D C c o n t r o l l e r 2
Pick-up motor
driver PCB
M - 10 "14 NO TONER CART' appears even though a catridge is loaded.
Step
E P - E cartridee 1
D C c o n t r o l l e r 2
PCB
Hi&-voltage
power supply
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Check
on the pick-up motor driver PCB zero
when thr upper cover is closed?
Check
Is the cartridge loaded properly?
Turn the printer OFF, connect the
printer driver tester. and turn the
power back ON. Does the
CARTRIDGE SENSOR LED of the
tester light for a while after the power
is turned ON ?
Result Procedure
Y E S
Replace the
Replace the DC controller
Replace the pick-up
Result
Procedure
CHAPTER 6