Lexmark Optra C710 Service Manual page 182

5016-001
FRU
4 Middle Roller 1
Middle Rollers
Middle Roller
Shaft
Middle Roller
Drive Gear
G Paper Jam 24x displays, media feeds from tray x and jams prior to
the paper pass sensor in the base printer.
FRU
1 Paper Tray x
2 Paper Feed
Roller
Paper Pick Up
Roller
Pick Up Gear
Pick Up ROller
Idler Gears
3 Paper Feed Unit
Clutch
2-116
Service Manual
Action
Check the middle roller drive gear, middle roller 1,
middle roller shaft, middle rollers and shaft
bearings for signs of wear, broken gear teeth or
binds. If problems are found, repair as necessary.
Action
Check tray x for anything that might cause the
paper to jam or prevent media from exiting.
Check the following paper feed parts for signs of
broken teeth, excessive wear, or binding:
• 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
pickup roller idler gears.
Voltages for the magnetic clutch can be checked
at the 6 pin inline cable connector, located in the
HVPS to engine board cable harness above the
temperature/humidity board assembly, on the left
side of the printer.
The resistance of the magnetic clutch should read
approximately 245 ohms. If incorrect, replace the
magnetic clutch.
Check the following voltages on the inline
connector, while feeding paper.
Pin #
1 (Black lead)
2 (Red Lead)
Voltage Voltage
Static Feeding
+24 V dc +24 V dc
+24 V dc 0 V dc to +24 V dc