2-26 Service Manual
7510
902.07
Service engine
error
General lower engine card
error
Fuse #5
An error has occurred in the lower engine card
assembly.
Go to “902.07 General lower engine error fuse
#5” on page 2-138.
903.00
Service motor
error
K developer/transport drive
motor error
K developer/transport drive motor error does not
rotate at the specified speed.
Go to “903.00 K developer/transport drive
assembly motor error” on page 2-140.
903.01
Service motor
error
K PC drive motor error The K PC cartridge drive motor does not rotate at
the specified speed.
Go to “903.01 K PC drive motor error” on
page 2-141.
903.02
Service motor
error
CMY PC drive motor error The CMY PC cartridge drive motor does not rotate
at the specified speed.
Go to “903.02 CMY PC drive motor error” on
page 2-142.
903.03
Service motor
error
Developer drive motor error The developer drive motor does not rotate at the
specified speed.
Go to “903.03 Developer drive motor error” on
page 2-142.
904.00
Service
transfer belt
Sensor (transfer belt HP) late
error
The sensor (transfer belt HP) does not detect the
transfer belt home position in the specified time or
the transfer belt is damaged or torn in half.
The transfer belt cleaning assembly is missing.
If this error has occurred more than three times, it
must be reset inside diagnostic mode before
troubleshooting can begin or the machine can
operate.
Go to “904.00 Sensor (transfer belt HP) late
error” on page 2-143.
904.01
Service
transfer belt
Transfer belt position failure The transfer belt is out of correct position or the
transfer belt cleaning assembly is missing.
Go to Go to “904.01 Transfer belt position
failure” on page 2-144.
904.02
Service
transfer belt
Sensor (transfer belt edge)
failure
The sensor (transfer belt edge detect) is not
detecting the transfer belt edge properly.
Go to “904.02 Sensor (transfer belt edge) failure”
on page 2-145.
904.03
Service
transfer belt
Sensor (2nd transfer roll
retract HP) late error
The sensing area of the sensor (2nd transfer roll
retract HP) is not interrupted within the specified
time when the 2nd transfer roll is moving to the
home position.
Go to “904.03 Sensor (2nd transfer roll retract
HP) late error” on page 2-145.
904.04
Service
transfer belt
Sensor (2nd transfer roll
retract HP) lag error
The sensing area of the sensor (2nd transfer roll
retract HP) remains interrupted within the specified
time when the 2nd transfer roll is moving from the
home position.
Go to “904.04 Sensor (2nd transfer roll retract
HP) lag error” on page 2-147.
Error code or
message
Error contents Description/Action
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