(7) 7990 - Waste toner full [Total page count more than 100,000 pages of printing]
Call service 7990:nnnnnn
Shake the process unit horizontally.
Turn power switch off, then on.
"7990" error
shown?
No
End.
Printer indicators
| Replace the process |
|
| unit. |
|
| Turn power switch off, |
|
| then on. |
|
| "7990" error | No |
Yes | shown? |
|
| Yes | End. |
|
|
Replace the waste toner sensor or engine board
(8) F010 - Controller checksum error
Turn power switch off, then on. If not solved, replace main board (See page
Printer indicators
Remote Operation Panel
Call service
F010:nnnnnn
(9) F020 - Controller RAM read/write error
Remove the expansion memory (DIMM). Turn power switch off, then on. If not solved, replace main board. If solved, replace the expanding memory (See pages
Printer indicators
Remote Operation Panel
Call service
F020:nnnnnn