Canon W8400 Series, Service Manual, Page: 159 / 224

Chapter 6
6-9
This is displayed when a DI correction failure is detected in the printhead.
<Probable problem locations>
Printhead, carriage relay PCB, carriage unit, engine controller, system controller
<Remedy>
1. Replace the printhead.
2. Cable connection check
Replace the cable between the head relay PCB and carriage relay PCB if the connection is not functioning normally.
3. Replace the carriage relay PCB.
4. Cable connection check
Replace the cable between the carriage relay PCB and engine controller if the connection is not functioning normally.
5. Replace the carriage unit.
6. Replace the engine controller.
7. Replace the system controller.
6.1.4.15 E02804/ E02805/ E02806/ E02807/ E02808/ E02809/ E0280A/E0280B/ E0280C/ E0280D/ E0280E/ E0280F/ Ink
tank error
0009-7106
<Cause>
This is displayed when installation of an incorrect ink tank is detected.
This is displayed when a checksum error occurs in the ink tank EEPROM.
<Probable problem locations>
Ink tank, ink tank unit, engine controller, system controller
<Remedy>
1. Replace the ink tank.
2. Replace the ink tank unit.
3. Cable connection check
Replace the cable between the ink tank unit and engine controller if the connection is not functioning normally.
4. Replace the engine controller.
5. Replace the system controller.
6.1.4.16 E02812/ E02A00/ E02A01/ E02A02/ E02A03/ Engine controller internal error
0009-7107
<Cause>
This is displayed when an error occurs in the engine controller EEPROM.
This is displayed when an error occurs in the firmware of the engine controller.
This is displayed when an error occurs in the FLASH ROM of the engine controller.
<Probable problem locations>
Engine controller, system controller
<Remedy>
1. Turn the power off and then on again.
2. Replace the engine controller.
3. Replace the system controller.
6.1.4.17 E02813/ E02814/ Head management sensor error
0010-0038
<Cause>
The head management sensor has detected an ink discharge error.
A sensor sensitivity error was detected during position adjustment of the head management sensor.
<Probable problem locations>
Printhead, head management sensor, engine controller and system controller
<Remedy>
1. Replace the printhead.
2. Visual check
Remove any foreign objects adhering to the head management sensor.
3. Replace the head management sensor.
4. Cable connection check
Replace the cable between the head management sensor and engine controller if the connection is not functioning normally.
5. Replace the engine controller.
6. Replace the system controller.
6.1.4.18 E02816/ E02817/ E02818 /E02819/ Maintenance cartridge error
0009-7108
<Cause>
Fault in maintenance cartridge EEPROM.
Maintenance cartridge ID error.
Maintenance cartridge not installed.
Maintenance cartridge full.
<Probable problem locations>
Maintenance cartridge, engine controller and system controller
<Remedy>
1. Replace maintenance cartridge.