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Table 5-2. Motor Functions
Name Function Type Direction of
rotation
Speed switching Failure
detection
M1 Feed
motor
Drives the pick-up
roller, feed roller,
duplexing feed roller,
and fuser.
Stepping motor Clockwise 4-speed (full, 1/2,
1/3, 1/4)
No
M2
Delivery
motor
Drives the feed roller,
developing engaging
clutch (CL3)/drive
assembly, and output
delivery rollers.
Stepping motor Clockwise/
counter-
clockwise
5-speed (full, 1/2,
1/3, 1/4, double)
No
M3 Drum
motor
Drives four colors
photosensitive drums,
ITB, Black developing
cylinder.
DC motor Clockwise/
counter-
clockwise
4-speed (full, 1/2,
1/3, 1/4)
Yes
M4
Developing
motor
Drives the yellow (Y),
magenta (M), and
cyan (C), developing
cylinders.
DC motor Clockwise 4-speed (full, 1/2,
1/3, 1/4)
Yes
M5 Primary
transfer
roller
engaging
motor
Engages and
disengages the
primary transfer roller.
Stepping motor Clockwise/
counter-
clockwise
No No
FAN1 Fan Exhausts heat around
the fuser, scanner
assembly, and print
cartridges.
DC motor No Yes
122 Chapter 5 Theory of operation ENWW