The printout is pale.
Cause What to do
The paper-thickness lever is set incorrectly for
your paper.
Move the paper-thickness lever to an appropriate setting. See
“Adjusting the Paper-thickness lever” on page 31 for more
details.
The ribbon is worn out. Replace the ribbon cartridge as described in “Replacing the
Ribbon Cartridge” on page 101.
The printout is faint.
Cause What to do
The paper-thickness lever is set incorrectly for
your paper.
Move the paper-thickness lever to an appropriate setting. See
“Adjusting the Paper-thickness lever” on page 31 for more
details.
The ribbon is worn out. Replace the ribbon cartridge as described in “Replacing the
Ribbon Cartridge” on page 101.
Part of the printout is missing, or dots are missing in random positions.
Cause What to do
The ribbon has too much slack, the ribbon has
come loose, or the ribbon cartridge is not
installed properly.
Remove any slack in the ribbon by turning the
ribbon-tightening knob, or reinstall the ribbon cartridge as
described in “Replacing the Ribbon Cartridge” on page 101.
The ribbon is worn out. Replace the ribbon cartridge as described in “Replacing the
Ribbon Cartridge” on page 101.
Lines of dots are missing in the printout.
Cause What to do
The print head is damaged. Stop printing and contact your dealer to have the print head
replaced.
Caution:
Never replace the print head yourself; you may damage the printer. Also, other parts of the printer must be checked
when the print head is replaced.
All the text is printed on the same line.
Cause What to do
No line feed command is sent at the end of each
line of text.
Turn on the auto line feed setting using the printer’s Default
Setting mode so that the printer automatically adds a line feed
code to each carriage return. See “Changing default settings” on
page 26.
LQ-690II/LQ-690IIN User’s Guide
Troubleshooting 79
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