The specifications of each motor are listed in the following table.
Table 4-2 Motor specifications
Name Purpose Type Direction of
rotation
Failure detection
Motor Main motor (M1) Drive ETB belt,
photosensitive
drum and
developing cylinder
DC motor CW Yes
Fuser/delivery
motor (M2)
Drive fuser
pressure roller,
delivery roller and
automatic release
of fuser pressure
Stepping motor CW/CCW No
Pickup motor (M3) Drive pickup roller
and registration
roller
Stepping motor CW No
Fan (FM1) Circulate air
around cartridge
DC motor — Yes
Main-motor failure detection (59.x errors)
The DC controller CPU stops the printer and notifies the formatter of the error status when it detects
the following motor-failure conditions:
●
Main motor startup abnormality: The motor does not get to the target rotation speed within a
specified time.
●
Main motor rotation abnormality: After the target rotation speed is achieved, this speed is not
maintained.
Fan motor failure detection
The CPU detects a fan-motor failure and notifies the formatter when it encounters the following
condition: The FAN LOCK signal (FANLCK) is “H” for approximately 10 seconds or longer during fan
motor rotation.
48 Chapter 4 Operational theory ENWW
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