Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 52

E Detailed Occurance Items
code code area
E012 -0503 -05 Title
Description
of detection
Measures
E012 -0504 -05 Title
Description
of detection
Measures
3
E012 -0505 -05 Title
Description
of detection
Measures
E012 -0506 -05 Title
Description
of detection
Measures
3-26
Description
ITB Drive Roller Speed Detection PCB 2 signal error
The signal is not detected for 80 msec or more.
1. Check the connection of the ITB Drive Roller Speed
Detection PCB 2 (UN17).
Sensor side: J7318, J7319, J8047 PCB side: J1912
2. Take out the ITB Drive Roller Speed Detection PCB 2
to clean.
3. Replace the ITB Drive Roller Speed Detection PCB 2.
4. Check if the Harness of the ITB Drive Roller Speed
Detection PCB 2 is faulty. (Replace the Harness if it's
disconnected.)
5. Replace the Drum ITB Driver PCB (UN6).
ITB Drive Roller Speed Detection PCB Encoder Wheel
error
This error occurs when the Drum Speed Detection PCB
(Bk) Encoder Wheel error is detected.
1. Take out the ITB Drive Roller Speed Detection PCB to
clean the ITB Drive Roller Speed Detection PCB 1/2
(UN16/17) and Encoder Wheel.
2. Replace the Encoder Wheel.
3. Replace the ITB Drive Roller Speed Detection PCB
1/2.
4. Replace the Drum ITB Driver PCB (UN6).
ITB Drive Motor control error
Unstable rotation of the ITB Drive Motor
1. Check if the ITB (Unit) is installed.
2. Take out the ITB Drive Roller Speed Detection PCB to
clean the ITB Drive Roller Speed Detection PCB 1/2
(UN16/17) and Encoder Wheel.
3. Remove and then reinstall the Process Unit (Bk).
4. Replace the ITB Unit.
5. Replace the Drum ITB Driver PCB (UN6).
ITB Drive Motor rotation error
ITB Drive Motor is not rotating at the specified speed, or
it is stopped.
1. Check the connection between the ITB Drive Motor
and Drum ITB Driver PCB (UN6).
Sensor side: J7518, J8047, J8050 PCB side: J1912,
J8011
2. Check the ITB. Check to see if the ITB is displaced
or ripped. Refer to E075 if the ITB is displaced.
3. Replace the ITB Cleaning Blade.
4. Replace the Drum ITB Driver PCB.
E Detailed Occurance Items
code code area
E012 -2000 -05 Title Rotation error of Drum Motor (Y/M/C/Bk) (M21/23/25/19)
and ITB Drive Motor
Description Simultaneous rotation error in all Motors
of detection
Measures 1. Check the connection of the Drum ITB Driver PCB.
2. Check the connection of the Relay PCB.
3. Check the Interlock Switch.
4. Check if the Harness of the Drum ITB Driver PCB
E012 -3000 -05 Title Error in Drum Speed Detection PCB (UN18 to 25) of all
colors
Description This error occurs when the Drum Speed Detection
of detection PCB (UN18 to 25) error is detected for all colors
simultaneously.
Measures 1. Check the connection of the Drum ITB Driver PCB.
2. Check if the Harness of the Drum ITB Driver PCB
3. Replace the Drum ITB Driver PCB.
E012 -3001 -05 Title Control error of Drum Motor (Y/M/C/Bk) (M21/23/25/19)
Description This error occurs when the Drum Motor (Y/M/C/Bk)
of detection (M21/23/25/19) control error is detected for all colors
simultaneously.
Measures 1. Check the Process Unit (to see if the Connector is
2. Check the Drum Unit (to see if the Connector is
E012 -3002 -05 Title Rotation error of Drum Motor (Y/M/C/Bk) (M21/23/25/19)
Description All of the Drum Motors (Y/M/C/Bk) (M21/23/25/19) are
of detection not rotating at the specified speed, or they are stopped.
Measures Check the connector of the Drum ITB Driver PCB (UN6).
Description
PCB side: J1900 (J1920/J1921/J1912)
PCB side: J1805
(UN6) is faulty.
PCB side: J1900 (J1310 to J1317)
(UN6) is faulty.
physically removed).
physically removed).
PCB side: J1900 (J1920/J1921/J1912)