Oki OKIOFFICE 84 Service Manual page 343

Action Items (Printer Unit-LCD Message) Table 7.22.2
No. ACTION
1 Check MCNT Board.
2 Check P2H/P6L Board cover open switch, cover open switch connection.
Check MCNT Board.
3 Return to Section 7.1.
4 Replace the Image Drum (EP) Unit.
5 Check installation of MCNT board, Power Supply Unit Board.
6 Check MCNT Board.
7 Check thermister (resistance of about 200 kilo ohms at room temperature and about 140
kilo ohms at high temperature), POWER SUPPLY UNIT.
8 Check connection between the PWU and the fuser assembly, heater, thermostat.
9 Check PWU.
10 Check Sensor-E, magnet-H, hopping roller, pulse motor, MCNT Board, Action of Idle
gear-P.
11 Check Gear-T, MCNT Board, P2H/P6L Board.
12 Check exit sensor lever, PWU
13 Check MCNT Board.
14 Check PWU, MCNT board.
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Service Guide OKIOFFICE 84
Chapter 7 Troubleshooting
Page: 195