E02520/ Ink Level Unknown Error; E02521/ E02522/ E02523/ E02524/ E02525/ E02526/ Ink Level Low Error; E02530/ Ink Type Error; E02800/ E02801/ E02802/ E02803/ E02811/ Printhead Error - Canon WS8400 Service Manual

Chapter 6
This is displayed when the sensor detects that the right cover is closed with an ink tank removed during ink tank replacement.
<Probable problem locations>
Operating procedure, ink tank, right cover sensor, ink tank unit, engine controller, system controller
<Remedy>
1. Operation check
Install the ink tank.
2. Visual check
Remove any foreign objects adhering to the ink tank contacts and right cover sensor.
3. Replace the ink tank.
4. Right cover sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
5. Cable connection check
Replace the cable between the right cover sensor and engine controller if the connection is not functioning normally.
6. Replace the ink tank unit.
7. Cable connection check
Replace the cable between the ink tank unit and engine controller if the connection is not functioning normally.
8. Replace the engine controller.
9. Replace the system controller.

6.1.4.11 E02520/ Ink level unknown error

<Cause>
Even one of the colors that should be set to "Main Menu> System Setup> Stop Ink Check" may have been changed to "Yes."
(When this option is set, the ink level of the corresponding color becomes "?".)
The display of this error indicates normal status if the setting is made by the user intentionally or due to an operation mistake.
In this case, the error message is displayed whenever printing is started, but it can be temporarily canceled by pressing the [Online] button to start printing
or pressing the [Stop/Eject] button to cancel printing.
To cancel this error and recover the ink level detection function, replace with a new ink tank designated for this printer.
Perform the following procedure whenever this error is displayed even though the ink level of the corresponding color is "?".
<Probable problem locations>
Engine controller, system controller
<Remedy>
1. Replace the engine controller.
2. Replace the system controller.

6.1.4.12 E02521/ E02522/ E02523/ E02524/ E02525/ E02526/ Ink level low error

<Cause>
Ink level has declined to approximately 33ml.
This error can be canceled by opening the right cover and printing can continue until the ink empty errors E02500 to E02505 appear.
<Probable problem locations>
Ink tank, engine controller and system controller
<Remedy>
1. Replace ink tank
2. Replace engine controller.
3. Replace system controller.

6.1.4.13 E02530/ Ink type error

<Cause>
The received data is different from the Bk ink being used.
<Probable problem locations>
Printer operating procedure error.
<Remedy>
1. Execute Maintenance > Update Ink Information from the printer driver and update the print driver ink information.
2. Send image data that has the same ink characteristic as the ink being used (Bk or MBk).

6.1.4.14 E02800/ E02801/ E02802/ E02803/ E02811/ Printhead error

<Cause>
This is displayed when no printhead is detected.
This is displayed when unusually high temperatures are detected in the printhead.
This is displayed when installation of an incorrect printhead is detected.
This is displayed when a checksum error occurs in the printhead EEPROM.
6-8
0009-7101
0009-7103
0010-0007
0009-7105