OKIDATA OF1050, Service Manual

Page: 378 / 449

9 Check for spilled toner. Vacuum all toner from
printer and clean toner carefully from all drive
gears.
10 Check the connection between the power
supply, contact assembly, fuser assembly,
heater, and the thermostat.
11 Check PWU
12 Check entrance sensor lever, hopping roller,
and registration motor for dirt. MCNT Board,
cover open state.
13 Check cover open state, drum motor, drum
motor gear, MCNT Board.
14 Check exit sensor lever, cover open state,
PWU, MCNT Board
15 Check MCNT Board
16 Check paper sensor lever, PWU, MCNT Board
Action Items Diagram High voltage outputs (and measurement points) are connected to the contact
assembly as shown in the diagram below.
Table 7.22.3 Image Troubles
Always test with a known "good" Image Drum before beginning to troubleshoot print image
problems. Be sure that the contact assembly makes positive contact with the power supply, drum,
and fuser. Clean or adjust the contacts as necessary.
Abnormal Symptom Reference
Figure Troubleshooting Flow Chart
Images are light or blurred as a whole. Fig. A 8
The blank background is smeared. Fig. B 9