E020; E025 - Canon ImageRunner 600 Service Manual

13

E020

Cause Step
Toner feed
screw, Toner
sensor (TS3)
Hopper drive
clutch (CL1)
14

E025

Cause Step
Connector
Drive system
Toner feeder
motor (M6;
inside cartridge)
COPYRIGHT © 1999 CANON INC.
1 Take out the developing assembly, and
detach the upper cover of the developing
assembly. Is there toner inside the
developing assembly?
2 Select COPIER>FUNCTION>PART-
CHK in service mode, and check the
operation of the hopper drive clutch
(CL1). Does the clutch operate?
3 Check the operation of the hopper motor
(M18) using MTR. Does the motor
operate?
1 Is the connector (J512) on the DC
controller PCB connected securely?
2 Does the drive system of the toner
feeding mechanism inside the cartridge
operate smoothly?
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
CHAPTER 13 TROUBLESHOOTING
Checks
Checks
Yes/No Action
YES Check the rotation of
the toner feeding screw
inside the developing
assembly; if normal,
replace the toner sensor
(TS3).
NO Check the connection;
if normal, replace the
clutch.
NO Check the connection;
if normal, replace the
motor.
YES Check the following:
• magnet roller inside
the hopper for
rotation.
• path from the hopper
to the developing
assembly for
clogging by toner.
Yes/No Action
YES Connect the connector
securely.
NO Correct the drive
system.
YES Replace the toner
feeder motor inside the
cartridge.
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