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Chapter 6 Troubleshooting
6
Print Quality Problem
Print Quality Problem (Receipt printer)
Vertical white streaks
Noticeable print shading/White lines are present
The print color is too light
Print Quality Problem (Slip/ Validation/ Endorsement printer)
The paper is dirty
Cause
Solution and reference
The head is dirty.
Perform head cleaning.
See
"Cleaning the Thermal Head and the Platen Roller" on page 95
.
Cause
Solution and reference
The print speed fluctuates or intermit-
tent printing occurs due to the condi-
tions of data transmission from the host.
Decrease the print speed so that printing does not stop in the middle of a job
and the print speed does not fluctuate.
See
"Software Settings" on page 60
Cause
Solution and reference
The print density is not set correctly.
Decrease the print density setting.
See
"Software Settings" on page 60
You are using paper other than the spec-
ified original paper.
Use the specified original paper.
Cause
Solution and reference
The paper is bent or curled.
Use flat paper that is not curled, folded, curved, or wrinkled. Otherwise, the
paper could come into contact with the ink ribbon and become dirty.
