Lexmark Optra C710 Service Manual page 180

5016-001
FRU
4 Paper Detect
Sensor Flag
Paper Detect
Sensor Board
5 Paper Feed
Roller
Paper Pick Up
Roller
Pick Up Gear
Pick Up Roller
Idler Gears
6 Paper Feed
Drive Assembly
7 Tray Option
Cable (OP)
Printer Option
Cable (OP)
8 Option
Interconnect
Board
Engine Board
2-114
Service Manual
Action
Check the paper detect sensor lever (flag) in the
paper feed unit assembly, for the tray flag that is
not feeding, for any signs of broken parts. Be sure
that it is operating properly. Replace the lever
(flag), if necessary.
Check the paper detect sensor for correct
operation. If incorrect replace the sensor board.
Check the following paper feed parts, in the paper
feed unit, for signs of broken teeth excessive wear
or binds.
• Paper feed unit clutch.
• Paper feed roller shaft, paper transfer roller
drive gear and paper feed roller.
• Paper transfer roller and paper transfer roller
idler gears.
• Paper pick up roller, paper pick up gear, paper
pick up roller idler gears.
Repair or replace any failing FRUs.
Check the paper feed drive assembly gears for
signs of excessive wear, broken teeth or other
damage. If a problem is found, repair or replace
the paper feed drive assembly.
Check the cables to make sure they are seated
properly and for any signs of damage (OP) to the
connector contacts.
If no problems are found, replace the following
FRUs in the order shown:
1. Option interconnect board
2. Engine board