Canon W8400 Series, Service Manual, Page: 161 / 224

Chapter 6
6-11
<Probable problem locations>
Operating procedure, carriage cover sensor, carriage relay PCB, engine controller, system controller
<Remedy>
1. Operation check
Close the carriage cover firmly.
2. Visual check
Replace the carriage cover if it is damaged, deformed, or otherwise does not function normally.
3. Carriage cover sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
4. Cable connection check
Replace the cable between the carriage cover sensor and carriage relay PCB if the connection is not functioning normally.
5. Replace the carriage cover sensor.
6. Cable connection check
Replace the cable between the carriage relay PCB and engine controller if the connection is not functioning normally.
7. Replace the carriage relay PCB.
8. Replace the engine controller.
9. Replace the system controller.
6.1.4.23 E02B08/ Paper release lever error
0010-0042
<Cause>
The pressure release sensor has detected that the paper release lever is open while the upper cover is locked.
<Probable problem locations>
Operating procedure, pressure release sensor, engine controller, system controller
<Remedy>
1. Operation check
Close the paper release lever firmly.
2. Visual check
Replace the paper release lever if it is damaged, deformed, or otherwise does not function normally.
3. Pressure release sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
4. Cable connection check
Replace the cable between the pressure release sensor and engine controller if the connection is not functioning normally.
5. Replace the engine controller.
6. Replace the system controller.
6.1.4.24 E02D00/ E02D01/ E02D0A/ E02D0B/ Sensor error in purge unit
0009-7113
<Cause>
This is displayed when sensors in the purge unit could not detect the positions of the motors within the prescribed time.
<Probable problem locations>
Purge unit, engine controller, system controller
<Remedy>
1. Home position sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace the purge unit if anything does not function normally.
- Cap home position sensor
- Pump home position sensor
- PG position H sensor
2. Cable connection check
Replace the cable between the sensors and engine controller if the connection is not functioning normally.
3. Replace the engine controller.
4. Replace the system controller.
6.1.4.25 E02D02/ Carriage home position error
0009-7114
<Cause>
This is displayed when the carriage home position sensor could not detect the carriage within the prescribed time.
<Probable problem locations>
Foreign object in carriage contact section, carriage home position sensor, linear scale, linear encoder, engine controller, system controller
<Remedy>
1. Visual check
Remove any foreign objects adhering to the carriage contact section, carriage home position sensor, linear scale, and linear sensor.
2. Carriage home position sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
3. Cable connection check
Replace the cable between the carriage home position sensor and engine controller if the connection is not functioning normally.
4. Replace the linear scale.
5. Replace the linear encoder.
6. Replace the engine controller.
7. Replace the system controller.
6.1.4.26 E02D03/ Feed motor error
0009-7115
<Cause>