When printing, other than print data is printed with gradation

Suspected cause
- Head FFC lead broken
Parts/Components to be checked
- Head FFC Assy
Troubleshooting
| Step | Confirmation points and methods | Page | YES | NO |
|---|---|---|---|---|
| 1 | Replace the Head FFC Assy. Does the product recover from the failure? | Head FFC Assy | End | Escalate to person in charge |