Checks / troubleshooting:
1. Does media dust accumulate in cutter groove?
2. Is cutter cap securely installed?
3. Check cutter sliding up/down operation.
4. When setting cutter, lower cutter with finger and check
that cutter rises to upper end only by spring force.
5. When setting cutter after removing cutter spring, does
cutter lower to lower end by its own weight?
6. Check if solenoid goes up/down from "Life: Cutter" of
self-diagnosis function.
a) Goes up/down:
Check the position where cutter goes down to cutter
groove.
b) Does not go up/down:
7. CR_FFC may be broken, solenoid Assy may be
defective, or each board Assy may be defective.
a) Replace CR_FFC with new one.

Recommended actions:
Remove accumulated media dust along groove.