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● Characters are wrong or missing; formatting control codes do not work
Probable Cause
Action
Problem with the application Refer to your application program manual.
program.
Some wires are missing from
Printer needs repair.
the print head.
Wrong default setting with Check the current EDS setting. Modify the
EDS switches. EDS setting.
● Dots are missing or print quality is poor
Probable Cause
Action
Adjustment lever is set incor- Check the position of the adjustment lever.
rectly.
See Chapter 3.
Print head is not working.
Printer needs repair.
● Forms are smudged or printing is too dark
Probable Cause
Action
Adjustment lever is set incor-
Check the position of the adjustment lever.
rectly.
Move the lever to a lighter setting (front).
See Chapter 3.
Ribbon is twisted or is not Install the ribbon correctly. See “Installing
between the print head and the ribbon cartridge” in Chapter 2.
the print head shield.
Print head shield (or print
See
“Installing the ribbon cartridge” in
head) is damaged or missing.
Chapter 2 to locate the printhead shield and
print head. Contact your dealer.
● Printer is unstable; Wrong characters are printed; Left margin changes;
Printing stops
Probable Cause
Action
Static electricity is resulting Increase the humidity.
from low humidity or inter- Move devices with electric motors away
ference from nearby electri- from the printer.
cal devices.
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