43502101TH Rev.1
63 /
Oki Data CONFIDENTIAL
[JAM error]
2
-1
Paper input jam
• Does the JAM error occur when the power is turned on?
• Yes
Is the paper at the inlet sensor?
• Yes Remove the paper.
• No
Is the operation of the inlet sensor plate normal (moves freely when it is touched)?
• No
Replace the inlet sensor plate.
• Yes
Clean the inlet sensor on the high voltage/sensor board, or replace the high voltage/
sensor board.
• No
Does the JAM alarm occur after paper feeding?
• Yes
Is the paper fed to the inlet sensor plate?
• Yes Is the operation of the input sensor plate normal (moves freely when it is touched)?
• No Replace the inlet sensor plate.
• Yes Clean the inlet sensor on the high voltage/sensor board or replace the high voltage/
sensor board.
• No
Replace the hopping roller rubber or paper cassette.
• No
Is the hopping roller rotating?
• Yes
Set the paper tray properly.
• No
Is the hopping clutch working normally?
• Yes
Replace the Boss and Shaft of the hopping roller assembly.
• No
Is CLT connector on the main control board being connected properly?
• No
Connect CLT connector properly.
• Yes
Is the coil resistance (normal resistance: between Pins 1
and 2, is about 144
Ω
) of the hopping clutch normal?
• No
Replace the hopping clutch.
• Yes
Replace the main control board.
Outlet sensor
Exit roller
Heat roller
Transfer roller
Paper sensor
Registration roller
Inlet sensor
Toner
sensor
Paper end sensor
Hopping
roller
Paper feeding direction
Summary of Contents for B4500 Series
Page 1: ...Oki Data CONFIDENTIAL B4500 B4550 B4600 Maintenance Manual 032007A PRINTING SOLUTIONS ...
Page 17: ...43502101TH Rev 1 17 Oki Data CONFIDENTIAL Upper cover unit Figure 2 2 Upper cover ...
Page 85: ...43502101TH Rev 1 85 Oki Data CONFIDENTIAL 2 High Voltage Sensor Board ...
Page 88: ...43502101TH Rev 1 88 Oki Data CONFIDENTIAL 3 Power Supply Board CN2 CN101 ...
Page 171: ...Please refer to the Illustrated Parts Manual for spare part information ...