Oki MC561 User Manual

44473001TH Rev.1
246 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
7.5.5 Image Problem Troubleshooting
(1) Color is faint and fades across pages (see Fig. 7-2 A). ................................247
(1-1) Color is faint and fades. ......................................................................247
(2) The white area of pr
inted pages is dirty (see Fig. 7-2 B). .............................248
(2-1) The white area of pr
inted pages is dirty (partially). .............................248
(2-2) The white area of pr
inted pages is dirty (all over). .............................249
(3) Pr
inted pages are blank (see Fig. 7-2 C). .....................................................249
(3-1) A pr
inted pages are entirely blank. .....................................................249
(4) V
ertical lines are produced in printed pages. ...............................................250
(4-1) Fine lines (colored) (see Fig.
7-2 D) ...................................................250
(4-2) Fine lines (white) (see Fig.
7-2 F) .......................................................250
(5) Pr
int quality problems appear periodically (see Fig. 7-2 E). ........................251
(5-1) Pr
int quality problems appear vertically and periodically. ..................251
(6) Color misregistr
ation is significant. ..............................................................251
(6-1) The message
“Adjusting color” displayed at power on stays
for a short time. ...................................................................................
251
(7) Blac
k filled-in printing ....................................................................................252
(7-1) Pr
inted pages are filled-in black entirely. ...........................................252
(8) Color jobs are pr
inted in monochrome, not in color. .....................................252
(8-1) F
alse setting of the limited-color printing menu ..................................252
Note! To replace the CU/PU board with a new one, load EEPROM chip data on the
o
ld board and copy it to the new board.
A Faint and faded
across the page
B
Dirty white area
C
Entirely blank
D
Vertical black
stripe/line
E
Periodic problems
F
Vertical white
band/line
Fig.7-2

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