Epson PR9, User Manual

Page: 87 / 269

Troubleshooting
9-3
9.5 Print-related Problems
Note:
The PR 9 printer has the function of overheating protection. If overheating protection
will be active the printer may slow down printing speed or even stop printing after a
long time printing (until printhead’s temperature returns normal). This function can
prevent print head from being destroyed if print head is over heated.
S
Print faint or of poor quality.
S
Have you used the correct paper? See Chapter 6 Technical Data which contains
a full specification of the paper you can use. Replace the paper if it does not
match the specification.
S
Make sure that the ribbon is stretched correctly.
S
Does the ribbon need changing? Replace it with a new ribbon if necessary.
S
Is the ribbon cartridge properly installed? Adjust as necessary.
S
Characters do not print evenly or are not uniform in pitch
S
Examine the paper pathway for dirt or other obstruction that may cause the gap
between print head and platen to vary. Remove the obstruction.
S
Incorrect installation of ribbon box or the ribbon tied.
S
Part of printed text is missing (loss of data)
S
If you are using Serial communication check the buffer control setting in Set-up.
S
Check the data flow control setting on the host computer.
S
Dot Missing
S
If white lines appear on characters at certain fixed position, there are probably
several needles broken or crooked. When this happens, please contact your printer
supplier to replace the damaged printhead.
Note: Please avoid printing on the edge of the paper! It may cause printer needle
broken
.