Oki B721 User Manual

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When the Message for Replacement of Consumables or Maintenance Unit is Displayed
4
Troubleshooting
Status Message on the display screen
Message
displayed
after
the
<HELP>
button is
pressed
Reference
Page
Error Code
Image Drum
(in a case of
ES7131/
MPS5501b)
1st line
2nd line
3rd line
4th line
5th line
Non Genuine Image Drum
Please see HELP for details
687
1st line
2nd line
3rd line
4th line
5th line
Image Drum Not Installed
Please see HELP for details
697
Fuser Unit 1st line
2nd line
□
Fuser Unit Near Life
–
1st line
2nd line
□
Change Fuser Unit
–
1st line
2nd line
3rd line
4th line
5th line
Install New Fuser Unit
Fuser Unit Life
Please see HELP for details
354
1st line
2nd line
3rd line
4th line
5th line
Check Fuser Unit
Please see HELP for details
320

Oki B721 Specifications

General

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