Oki Data CONFIDENTIAL
43163501TH Rev. 1
107 /
7.
TROUBLESHOOTING PROCEDURES
7.1
Precautions prior to repair
(1)
Confirm the basic check items indicated in the User's Manual.
(2)
Through hearing from the user, obtain information, as far in detail as possible, on the situation
concerning the fault.
(3)
Inspect the printer in a condition close to the actual situation in which the fault occurred.
7.2
Items to be checked prior to taking action on abnormal images
(1)
Check to see if the printer is operated in an adequate environment.
(2)
Check to see if the consumables (toner, drum cartridges) are replaced properly.
(3)
Check to see if the right paper is used. See the paper specifications.
(4)
Check to see if the drum cartridges are installed properly.
7.3
Precautions when taking action on abnormal images
(1)
Do not bring your hand or any object in contact with the surface of the OPC drum.
(2)
Do not expose the OPC drum to direct sun.
(3)
Do not touch the fuser unit, which can be very hot.
(4)
Do not expose the image drums to light for over five minutes at the room temperature.
7.4
Preparations for troubleshooting
(1) Display of status monitor
The breakdown situation of this machine is display in LED of the operator panel.
Do an appropriate trouble repair based on information displayed in LED.
(2) Notes
Even if the operator panel with C5900/C5800 LCD is connected with this device
(C3400n/3300n), the message similar to C5900/5800 is not output at all.
7.5
Troubleshooting method
If a trouble occurs in the printer, search for it by the following procedure:
Problem generated
Problem is displayed
in LED.
Abnormal image
(or problems that are
not displayed in the
LED)
Repair in detail using
troubleshooting flow
(see 7.5.2).
Repair in detail using
troubleshooting flow
(see 7.5.3).
Repair using the “LCD
pattern list” (see 7.5.1).