User manual

APOS Premium Printer Series User Manual Page 134 /136 Reference: FDE 3107312 Issue A
7.2.3 Printing Problems
Problem Possible Causes What to Do
Printing quality is
deteriorating
Print head may be
getting dirty.
See next chapter ”Cleaning
your printer”.
Colored stripe on the
receipt.
Paper is low. Change the paper.
Receipt does not come out
all the way.
Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Printer starts to print, but
stops while the receipt is
being printed.
Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Receipt is not cut.
The printer is not
configured for a knife.
Contact your authorized
service representative.
Paper roll loaded
incorrectly.
Check that the paper is loaded
properly.
Thermal print head is
dirty.
Use recommended thermal
receipt paper.
Print is light or spotty.
Variations in paper. Increase print density in “Set
Hardware Options” of printer
Configuration Menu as
needed.
Vertical column of print is
missing.
This indicates a serious
problem with the printer
electronics.
Contact your authorized
service representative.
One side of receipt is
missing.
This indicates a serious
problem with the printer
electronics.
Contact your authorized
service representative.