Oki MC561 User Manual

44473001TH Rev.1
249 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
(2-2) The white area of printed pages is dirty (all over).
Check item Check operation
Actions for NG
results
(2-2-1) Print media
Media type Is the media used for printing is especially thick? Use standard
paper.
(2-2-2) High-voltage terminal
ID unit terminal Visually check each ID unit high-voltage terminal
if it contacts the contact assembly properly. (See
Fig. 7-3.)
Replace any
applicable ID
unit or correct
any applicable
high-voltage
terminal. When
using a new ID
unit as a try,
select FUSE
KEEP MODE
of the system
maintenance
menu.
7.5.5 (3) Printed pages are blank (see Fig. 7-2 C).
(3-1) A printed pages are entirely blank.
Check item Check operation
Actions for NG
results
(3-1-1) Toner state
Remaining toner
amount
Check if the amount of toner remaining in toner
cartridges is sufficient.
Replace any
toner cartridge
with little toner.
(3-1-2) Exposure state
LED head Check each LED head and relevant drum if they
face each other at a correct position when the
cover is closed. Check each LED head’s light-
emitting face for anything that blocks emission of
light.
Correct the LED
head position.
LED head
connection state
Check LED heads if they are connected properly. Replace any
applicable LED
head.
Drum shaft Are drum shafts installed in a manner that they
contact the side plates on both sides correctly?
Replace any
applicable ID
unit. When
using a new ID
unit as a try,
select FUSE
KEEP MODE
of the system
maintenance
menu.
CU/PU board fuse
F501 (C530/C330),
F6 (C510/C310)
Measure resistance values of F501 (C550/C330)
and F6 (C510/C310).
1
or less : Normal
1 or more: NG
Replace the
CU/PU board.

Oki MC561 Specifications

Printing Specifications

Print Speed	Up to 27 ppm color, 31 ppm black & white
Time to First Page	As fast as 8 seconds in color, 7.5 seconds in black & white
Print Resolution	Up to 1200 x 600 dpi

Copying Specifications

Copy Speed	Up to 27 cpm color, 31 cpm black & white
First Copy Out	As fast as 14 seconds in color, 12 seconds in black & white
Copy Resolution	Up to 600 x 600 dpi

Scanning Specifications

Scan Type	Color and black & white flatbed
Scan Resolution	Up to 1200 x 1200 dpi
Scan Speed	Approx. 3 sec./page color, approx 2 sec./page black & white at 300 dpi

Fax Specifications

Fax Modem	33.6 Kbps Super G3
Transmission Speed	3 seconds/page
Fax Resolution	Up to 200 x 400 dpi

System Memory

Standard Imaging RAM	256 MB
Max Imaging RAM	768 MB
SD Card Storage	4 GB standard; 16 GB optional

Paper Handling

Scanner RADF Capacity	Up to 50 letter/legal sheets
Standard Input	350 sheets (250 sheets via Main Tray + 100 sheets via MPT)
Maximum Input	880 sheets (with optional 530-sheet 2nd Paper Tray)

Environmental Specifications

Size	16.8" x 20" x 17.5" (42.7 cm x 50.9 cm x 44.4 cm)
Weight	63 lb. (29 kg)
Power Consumption	Operating Normal 570W; Max 1170W; Idle 100W; Power Save 20W; Deep Sleep <1.5W