Toner Drop Service Check - Lexmark C510 Service Manual

5021-0XX

Toner drop service check

A toner spot stain on paper is caused by ambient toner within printer
engine.
Problem area
1 Waste toner feed system
• Waste toner auger
• Waste toner feeder
2 Transfer unit cleaning roller
2-116
Service Manual
Action
Toner drops on the transfer drum due
to a breakdown of the waste toner
feed system.
• Waste toner auger mylar is
damaged. Examine and replace if
defective. See
auger removal" on page
• Waste toner is not properly
collected by waste toner feeder.
Check to ensure that waste toner
feeder is not compacted. If so,
replace waste toner feeder. See
"Waste toner feeder removal" on
page 4-42.
• Check for waste toner in printer. If
found, clean and vacuum printer.
Cleaning roller is faulty.
Remove transfer belt unit (see
"Transfer belt unit removal" on
page 4-7). Replace cleaning roller.
See "Transfer belt cleaning roller
removal" on page
installation of new cleaning roller,
thoroughly clean cleaning roller
installation area.
Check for waste toner in printer. If
found, clean and vacuum printer.
"Waste toner
4-72.
4-6. Prior to