Citizen CLP-7202e User Manual page 33

Check the following items in the self-test mode.
Check item
Dot missing
Totally blurred
Partially blurred
Ribbon wrinkling
and slipping
Sample 2
203 dpi
2. After self-test printing, the printer enters the data dump mode (hex dump mode).
The contents of communication can be checked with the communication data printed in ASCII
code.
3. Return to normal operating mode after turning OFF the power switch and turning ON again.
Cause
Printprinthead disconnected
Dust adhered
Printhead offset changed in
position
Printing energy low
Printhead pressure unbalanced
Ribbon tension improper
31
Chapter 2 Printer Operation
4 Self-Test Mode & Hex Dump Mode
Remedy
Replace printhead
Clean printhead (see Section 5, Chapter 4)
Adjust printhead offset (see Section 1,
Chapter 4)
Adjust printing energy (see Command
Reference)
Adjust printhead pressure
(see Section 2, Chapter 4)
Adjust ribbon tension
(see Section 3, Chapter 4)