Carrier Service Checks - Lexmark S800 Series Service Manual

Carrier service checks

Symptom
• The carrier slams
against the side
frame.
• There is no carrier
movement.
Poor print quality
• Check the encoder strip for proper installation or contamination. Clean as
possible.
• Check the carrier cable connectors on the system board. If connectors are
okay, then replace the system board. See
cable, and spring removal" on page
then replace the print engine. See
Be sure that the All-In-One contains good print tanks.
Be sure the print tank nozzle plate is clean. Clean with a soft cloth.
Ink smudging and smearing can be caused by paper problems or problems in the
paper feed area. Check for:
• Correct type of paper
• Curled or wrinkled paper
• Paper path obstructions
• Feed roller wear or looseness
• Worn gears or binds
If the paper feed roller or gears are defective, then replace the All-In-One.
Blurred print and voids can be caused by problems in the carrier transport area. Check
the following:
• Carrier transport belt for wear
• Idler pulley parts for wear, damage, or looseness
• Carrier guide rod for wear or dirt. If the rod is dirty, then clean and lubricate it.
The carrier to carrier frame engagement should be lubricated with grease P/N
40X0179.
If the carrier transport belt is worn, then replace the print engine. See
removal" on page 4-25.
If the idler pulley parts are defective, then replace the print engine. See
removal" on page 4-25.
Lexmark S800 Series
Action
"System board with media sensor,
4-21. If that does not fix the problem,
"Print engine removal" on page
Diagnostic information
4-25.
"Print engine
"Print engine
2-14