Oki MB461 - Page 259

Oki Data CONFIDENTIAL
44871001TH Rev.6
8-67
8. TROUBLESHOOTING PROCEDURES
In case of error printing
•
Does the contact plate of the transfer roller contact the TR terminal of the high-
voltage power supply unit properly? (See Figure 7-3, Section 9.2 (2))
•
No Adjust the contact plate so that it contacts the TR terminal of
the high-voltage power supply unit properly.
•
Yes Replace transfer roller.
•
Has the problem been solved?
•
Yes Completed
•
No Is LED Head installed properly? (Check the HEAD connector of main
board and PC connector of LED Head.)
•
No Install LED Head properly.
•
Yes Replace LED Head or Head cable.
•
Has the problem been solved?
• Yes Completed
•
No Replace the main board or high-voltage power supply unit.
Vertical white belt/ White line
• IstheLEDlensdirty?
• Yes CleantheLEDlens.
• No DoesthecontactplateofthetransferrollercontacttheTRterminalof
the high-voltage power supply unit properly? (See Figure 7-3, Section
9.2 (2))
•No Adjust the contact plate so that it contacts the TR terminal of
the high-voltage power supply unit properly.
• Yes Replacethetransferroller.
• Hasthetroublebeensolved?
• Yes Completed.
• No Isthebackuprollersurfacenormal?
• No ReplacethefuserAssy.
• Yes IstheLEDheadappropriatelyinstalled?(ChecktheHEADconnector
of the main board and the PC connector of the LED head.)
• No InstalltheLEDheadappropriately.
• Yes ReplacetheLEDhead.
• Hasthetroublebeensolved?
• Yes Completed.
• Yes Replacetheimagedrumcartridge.
• Hasthetroublebeensolved?
• No Replacethemainboardorhigh-voltagepowersupplyunit.
In case of inefficient fusing (If touch by hand the character or image that are printed
on paper will be faded or unstuck.)
• Isthespeciedpaperused?
• No Usethespeciedpaper.
• Yes Isthebackuprollersurfacenormal?
• No ReplacethefuserAssy.
• Yes Does the contact plate of the fuser Assy contact the base plate
properly? (See Figure 7-4.)
• No AdjustthecontactplateofthefuserAssysothatitcontactsthe
base plate properly.
• Yes ReplaceFuserAssy.
• Hastheproblembeensolved?
• Yes Completed
• No Replacethemainboardorhigh-voltagepowersupplyunit.