Lexmark C91 Series, Service Manual

Page: 45 / 493

General information
1-29
5055-xxx
Maintenance approach
The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the error code charts,
symptom index, and service checks to determine the symptom and
repair the failure. The removals in the repair information chapter may
help you identify parts.
•
“Printer messages” on page 2-4
•
“Symptom table” on page 2-63
•
“Service checks” on page 2-68
•
“Repair information” on page 4-1
After you complete the repair, perform tests as needed to verify the
repair. See
“Diagnostic aids” on page 3-1 .
Standard inspection and cleaning procedure
•
Switch off printer power, and disconnect the AC power cord
from the electrical outlet.
•
Remove and inspect the photodevelopers and toner cartridges,
shielding them from strong light.
•
Inspect the interior of the printer, removing foreign matter such
as paper clips, staples, pieces of paper or transparencies, paper
dust, hair, oil, grease, or toner.
•
Clean the printer interior using a lint-free cloth, dampened
slightly with cold water. Do not use solvents or chemical
cleaners to clean the printer interior.
•
Use only the specified oil or lubricant on printer parts (some
service parts are lubricated at the factory).
•
Inspect and, if necessary, clean all rubber/plastic and D rolls
with a lint-free cloth, dampened slightly with cold water. Dry the
rolls with a lint-free cloth.
•
While cleaning, inspect the interior of the printer for damaged
wires, loose connections, toner leakage, loose springs, and
damaged or worn parts.
•
Be sure the printer is on a single, flat, strong table or desk top.