The Registration Roller Fails To Rotate; The Scanner Fails To Move Forward/In Reverse - Canon GP215 Service Handbook

31

The registration roller fails to rotate.

Cause Step
Registration 1
roller
DC controller 2
PCB
Registration
clutch (CL1)
32

The scanner fails to move forward/in reverse.

Cause Step
Scanner drive 1
cable
Scanner path 2
(foreign matter)
Connector 3
(poor contact)
Scanner motor 4
(M2)
DC controller
PCB
Checks
Press the Copy Start key. Does
the registration roller rotate
immediately after the scanner
moves forward?
Does the voltage between the
connector J114-B10 (+) and
the connector J114-B1 (–) on
the DC controller PCB change
from 0 V to 24 V immediately
after the scanner starts to
move forward?
Checks
Is the scanner drive cable rout-
ed correctly?
Is the scanner rail free of dirt,
and does the scanner move
smoothly?
Check the wiring/connection
from the connector J116 on the
DC controller PCB to the scan-
ner motor. Is it normal?
Replace the scanner motor. Is
the problem corrected?
TROUBLESHOOTING MALFUNCTIONS
Yes/No
YES Check the registration roller
drive assembly.
NO Replace the DC controller
PCB.
YES Check the wiring from the DC
controller PCB; if normal,
replace CL1.
Yes/No
NO Re-route it.
NO Check the surface of the scan-
ner rail for foreign matter or an
object that comes into contact
with the scanner.
NO Correct it.
YES End.
NO Replace the DC controller
PCB.
Action
Action
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