Oki B721 Maintenance Manual

Oki Data CONFIDENTIAL
45487001TH Rev.1
4-25 /
4. Maintenance menus
Figure 4-2
4.3.2.4 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
or MENU
button (the
MENU
button displays the next test option and the MENU button displays the
preceding test option). Then press the ENTER button.
2. Press the MENU
or MENU button until an option shown in table 4-4 for the
unit to test appears on the lower display (the MENU
button displays the next
option and the MENU
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 4-2).
Note! The 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).
HOP MOTOR
2ndHOP Clutch
2nd REG Clutch
MPT Clutch
HOP1 Clutch
HOP MOTOR
REG1 Clutch
DUP MOTOR
FUS MOTOR
DUP SOLENOID
FUSFAN
REAR FAN
IDFAN2
ID MOTOR
DUP Clutch
POWFAN
REG2 Clutch
HOP MOTOR
3rdHOP Clutch
3rd REG Clutch
HOP MOTOR
4thHOP Clutch
4th REG Clutch

Oki B721 Specifications

General

Print Technology	LED
Resolution	1200 x 1200 dpi
Processor	533 MHz
Memory	256 MB
Connectivity	USB, Ethernet
Duplex Printing	Standard