Maintenance box recognition error
Error name
Detection Maintenance box, read (error code: 920902)
Detection Maintenance box, write (error code: 920903)
Error occurrence condition
- Occurs if the data written to CSIC of the maintenance box differs from normal or cannot be recognized.
Occurs when the maintenance box software counter of the printer is full due to multiple initial ink charging operations. (Technical Information: TJ20-0001)
Trouble related parts and causes
Maintenance box attachment failure
CSIC contact parts dirty (printer side, maintenance box side)
Maintenance box CSIC defect
CSIC contact part failure
Troubleshooting
| Procedure | Check and measure | Yes | No |
|---|---|---|---|
| 1 | Reattach the maintenance box Does the error occur? |
Go to step 2 |
End |
| 2 | Clean the CSIC contact parts. Clean the Ink pack CSIC with a dust-free cloth. Does the error occur? |
Go to step 3 | End |
| 3 | Attach a new maintenance box Does the error occur? |
Replace the CSIC contact parts. (If the trouble is not resolved, contact EPSON local service representatives.) |
End |