Oki B721 Maintenance Manual

Oki Data CONFIDENTIAL
45487001TH Rev.1
6-21 /
6. Troubleshooting procedure
LCD Status
Message
READY
indicator
ATTEN-
TION
indicator
Beep Details
Error
code
Open Cover
PaperJam
Front Cover
Please see HELP
for details
Off Blink On JamhasoccurrednearbyDUPLEX
unit.
Error 372 : Misfeed from Duplex
Error
372
Install New Image
Drum
Image Drum Life
Please see HELP
for details
Off Blink On The toner empty error is occurred
after the image drum reached its life.
Error 563 : Black
This is displayed until a user
exchanges the image drum.
Error
563
Install New Print
Cartridge
Print Cartridge Life
Please see HELP
for details
Off Blink On The toner empty error is occurred
after the image drum reached its life.
Error 563 : Black
This is displayed until a user
exchanges the image drum.
Error
563
Install New Image
Drum
Image Drum Life
To Exceed the
Life, Press Online
Button
Please see HELP
for details
Off Blink On Notifies the life of the drum.
The operator can prolong the life
temporarily by pressing the Online
button.
Error 567 : Black
Error
567
Install New Print
Cartridge
Print Cartridge Life
To Exceed the
Life, Press Online
Button
Please see HELP
for details
Off Blink On Notifies the life of the Print
Cartridge(drum).
The operator can prolong the life
temporarily by pressing the Online
button.
Error 567 : Black
Error
567
LCD Status
Message
READY
indicator
ATTEN-
TION
indicator
Beep Details
Error
code
Install New Image
Drum
Printing disabled
due to low
threshold of Image
Drum life
Please see HELP
for details
Off Blink On Notifies the life of the drum absolutely.
This status is appeared after the end
of the prolonged period.
Error 683 : Black
Error
683
Install New Print
Cartridge
Printing disabled
due to low
threshold of Print
Cartridge life
Please see HELP
for details
Off Blink On Notifies the life of the Print Cartridge
absolutely.
This status is appeared after the end
of the prolonged period.
Error 683 : Black
Error
683
Install New Fuser
Unit
Fuser Unit Life
Please see HELP
for details
Off Blink On Notifies the fuser has reached its life.
This is the error displayed based on
the counter to indicate that the fuser
has reached its life, and printing will
stop.
Warning status takes effect at Cover
Open/Close.
Error
354
Check Toner
Cartridge
Improper Lock
Lever Position
Please see HELP
for details
Off Blink On Indicates that no toner is supplied to (is
detected in) the printer. This error is
possibly caused by installing the toner
cartridge with being unlocked with its
lock lever, or its protective tape not
removed.
Error 547 : Black
Error
547

Oki B721 Specifications

General

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