Canon W8400 Series, Service Manual, Page: 160 / 224

Chapter 6
6-10
2. Replace engine controller.
3. Replace system controller.
6.1.4.19 E02820/ E02821/ E02822/ E02823/ E02824/ Adjustment error
0010-0053
<Cause>
Adjustment cannot be performed because the result of reading adjustment pattern by performing Auto Head Adjustment from the User Menu is abnormal.
Adjustment cannot be performed because the result of reading adjustment pattern by performing Auto LF Adjustment from the User Menu or Service Mode
is abnormal.
Adjustment cannot be performed because the result of reading correction pattern by performing Decentration Compensation from Service Mode is
abnormal.
Adjustment cannot be performed because the result of reading head verification pattern by performing Auto LF Adjustment from the User Menu or Service
Mode is abnormal.
Adjustment cannot be performed because the result of reading adjustment pattern by performing Optical Axis Adjustment from Service Mode is abnormal.
Check whether you are using photo glossy paper when adjusting by selecting SERVICE MODE > ADJUST > PRINT PATTERN > OPTICAL AXIS or
SERVICE MODE > ADJUST > PRINT PATTERN > LF.
<Probable problem locations>
Operating procedure, printhead, registration sensor, head relay PCB, carriage relay PCB, engine controller, system controller
<Remedy>
1. Check that the media selected from the operation panel is the same as the media type of the printed adjustment pattern. If not, set the same media as the
one selected from the operation panel and repeat adjustment.
2. If the media causes excessive ink seepage, change the media.
3. Clean the head and repeat adjustment. Replace the head if adjustment is still not possible after cleaning the head.
4. Replace the registration sensor and repeat adjustment.
5. Replace the carriage unit.
6. Replace the engine controller.
7. Replace the system controller.
6.1.4.20 E02B04/ Upper cover sensor error
0009-7109
<Cause>
This is displayed when the upper cover sensor (L/R) has detected upper cover open status even though it is locked.
<Probable problem locations>
Upper cover, upper cover safety switch, upper cover lock unit, engine controller and system controller
<Remedy>
1. Operation check
Replace the sensor if the upper cover sensor flag or upper cover sensor (L/R) is damaged, deformed or is otherwise malfunctioning.
Remove any foreign objects adhering to the upper cover lock unit.
2. Upper cover sensor (L/R)
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
3. Cable connection check
Replace the cable connecting the upper cover sensor (L/R) and engine controller if the connection is not functioning normally.
4. Upper cover lock unit
Check operation, and replace if it is not functioning normally.
5. Cable connection check
Replace the cable between the upper cover lock unit and engine controller if the connection is not functioning normally.
6. Replace the engine controller.
7. Replace the system controller.
6.1.4.21 E02B05/ E02B07/ Right cover sensor error
0009-7110
<Cause>
This is displayed when the right cover sensor has detected right cover open status even though it is locked.
<Probable problem locations>
Right cover, right cover lock unit, right cover sensor, engine controller, system controller
<Remedy>
1. Visual check
Replace the right cover or right cover lock unit if any of them are damaged, deformed, or otherwise does not function normally.
2. Right cover 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 right cover sensor and engine controller if the connection is not functioning normally.
4. Replace the engine controller.
5. Replace the system controller.
6.1.4.22 E02B06/ Carriage cover sensor error
0009-7111
<Cause>
This is displayed when the carriage cover sensor has detected that the carriage cover is open while the upper cover is locked.