Oki C821 Maintenance Manual

44015503TH Rev. 1
132 /
Oki Data CONFIDENTIAL
5. MAINTENANCE MENUS
5.3.2.4 Motor and clutch test
The motor and clutch test is used for testing motors and clutches.
1. Enter the self-diagnostic mode (level 1) and, until MOTOR & CLUTCH TEST
appears on the upper display, press the MENU up-arrow (
) or MENU down-arrow
( ) button (the MENU up-arrow ( ) button displays the next test option and the
MENU down-arrow ( ) button displays the preceding test option). Then press the
ENTER button.
2. Press the MENU up-arrow (
) or MENU down-arrow ( ) button until an option
shown in table 5-4 for the unit to test appears on the lower display (the MENU up-
arrow ( ) button displays the next option and the MENU down-arrow ( ) button
displays the preceding option).
MOTOR & CLUTCH TEST
ID MOTOR
3
. Press the ENTER button. The motor and clutch test starts, the unit’s the name and
current status starting to blink, and the unit being driven for ten seconds (refer to
figure 5-2).
Note! T
he state in step 2 is restored after the unit is driven so. The unit is driven
again by pressing an appropriate button.
•
By usual printing driving, the clutch solenoid repeatedly is turned on and
off (its motor is driven together with the solenoid when the solenoid cannot
be driven solely for its mechanical structure). * Image drum up-and-down
movement continues until the CANCEL button is pressed.
•
The clutch solenoid is kept driven by holding down the ENTER button (two
seconds) for a motor to be accepted.
4
. Press the CANCEL button. The state in step 2 is restored.
5. Repeat steps 2 through 4 when necessary.
6. Press the BACK button to end the test (the state in step 1 is restored).
Tray-1 hopping motor
(registration motor
and front motor)
Hopping solenoid
Tray-2 hopping clutch
Tray-3 hopping clutch
Image drum motor
Fuser motor
Fuser-end cooling fan
Fuser fan
Duplex fan
Color registration shutter
Duplex
solenoid
Duplex
clutch
Duplex
motor
Tray-2 motor
Tray-2 feed clutch
Tray-3 motor
Tray-3 feed clutch
Belt motor
LV (low voltage) fan
Image drum up-down motor
Figure 5-2

Oki C821 Specifications

General

Brand	Oki
Model	C821
Category	All in One Printer
Language	English