Chapter 2 Printer Operation
31
Check the following items in the self-test mode.
Check item Cause Remedy
Printprinthead disconnected Replace printhead
Dot missing
Dust adhered Clean printhead (see Section 5, Chapter 4)
Printhead offset changed in
position
Adjust printhead offset (see Section 1,
Chapter 4)
Totally blurred
Printing energy low
Adjust printing energy (see Command
Reference)
Partially blurred
Printhead pressure unbalanced
Adjust printhead pressure
(see Section 2, Chapter 4)
Ribbon wrinkling
and slipping
Ribbon tension improper
Adjust ribbon tension
(see Section 3, Chapter 4)
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.
Sample 2
203 dpi
4 Self-Test Mode & Hex Dump Mode
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