Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 45

E Detailed Occurance Items
code code area
E012 -0202 -05 Title A. Drum Speed Detection PCB (M) 1 signal error
B. Drum motor (M) error (Prior to Controller Version
Description A. The signal is not detected for 80 msec or more.
of detection B. Lock signal of Drum motor (M) (M23) cannot be
• Connector disconnected, Breaking (Breaking
• Drum (unit) not inserted
• Drum unit failure
• Encoder failure (This occurs in very rare cases.)
Measures A:
B:
NOTE:
In some rare cases, this error occurs when the encoder
is not installed with the drum speed detection PCB or
when dirt is applied to the sensor surface of the drum
speed detection PCB.
Description
(Controller Version 2x.xx or later)
1x.xx)
detected for the specified period of time after first
detection
(shorting))
A-1. Check the connection of the Drum Speed
Detection PCB (M) 1 (UN22).
Sensor side: J7314, J8013 PCB side:J1910
A-2. Take out the Drum Speed Detection PCB (M)
1 to clean.
A-4. Replace the Drum Speed Detection PCB (M) 1.
A-5. Check if the Harness of the Drum Speed
Detection PCB (M) 1 is faulty. (Replace the
Harness if it's disconnected.)
A-6. Replace the Drum ITB Driver PCB (UN6).
B-1. Check the connection of the drum motor (M)
(M23). (Connection of the connector, Breaking
(Breaking (shorting)))
Motor side: J7302/J8020, PCB side: J1920
B-2. Check the connection between the drum
speed detection PCB (M) (UN22/23) and the
drum ITB driver PCB (UN6). (Connection of the
connector, Breaking (Breaking (shorting)))
Motor side: J7314/J7315/J8013, PCB side:
J1910
B-3. Reinstall the drum unit (M).
B-4. Replace the drum unit. (Drum drive may be
overloaded due to peeling of the blade, etc.)
B-5. Replace the drum ITB driver PCB.
E Detailed Occurance Items
code code area
E012 -0203 -05 Title Drum Speed Detection PCB (M) 2 signal error
Description The signal is not detected for 80 msec or more.
of detection
Measures 1. Check the connection of the Drum Speed Detection
2. Take out the Drum Speed Detection PCB (M) 2 to
4. Replace the Drum Speed Detection PCB (M) 2.
5. Check if the Harness of the Drum Speed Detection
6. Replace the Drum ITB Driver PCB (UN6).
E012 -0204 -05 Title Drum Speed Detection PCB (M) Encoder Wheel error
Description This error occurs when the Drum Speed Detection PCB
of detection (M) Encoder Wheel error is detected.
Measures 1. Take out the Drum Speed Detection PCB (M) to clean
2. Replace the Encoder Wheel.
3. Replace the Drum Speed Detection PCB (M) 1/2.
4. Replace the Drum ITB Driver PCB (UN6).
E012 -0205 -05 Title Drum Motor (M) control error
Description Unstable rotation of the Drum Motor (M)
of detection
Measures 1. Check if the Drum Unit (M) is installed.
2. Take out the Drum Speed Detection PCB (M) to clean
3. Remove and then reinstall the Process Unit (Bk).
4. Replace the Drum Unit (M).
5. Replace the Drum ITB Driver PCB (UN6).
E012 -0206 -05 Title Drum Motor (M) rotation error
Description The Drum Motor (M) is not rotating at the specified
of detection speed, or it is stopped.
Measures 1. Check the connection between the Drum Motor and
2. Check the ITB.
3. Replace the ITB Cleaning Blade.
4. Replace the Drum ITB Driver PCB.
Description
PCB (M) 2 (UN23).
Sensor side: J7314, J7315, J8013 PCB side:J1910
clean.
PCB (M) 2 is faulty. (Replace the Harness if it's
disconnected.)
the Drum Speed Detection PCB (M) 1/2 (UN22/23)
and Encoder Wheel.
the Drum Speed Detection PCB (M) 1/2 (UN22/23)
and Encoder Wheel.
Drum ITB Driver PCB (UN6).
Sensor side: J7302, J8020 PCB side: J1921
Check to see if the ITB is displaced
or ripped. Refer to E075 if the ITB is displaced.
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