Oki MC561 User Manual

44473001TH Rev.1
228 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
Check item Check operation
Actions for NG
results
(3-2-4) Check the system connection
Paper feed motor
drive cable
Ch
eck the connection condition of the cable.
Check if the connector is connected in the half-
way only or not, and check if the connector is
inserted in a slanted angle or not. Check also that
cables are assembled without any abnormality.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
Paper feed motor
drive cable
Check that any cable is not pinched during
assembling of the printer.
Pull out the CU/PU board HOPSIZE connector
1, and check the following at the side of the
connector.
Short circuit between pin-1 – FG
Short circuit between pin-2 – FG
Short circuit between pin-3 – FG
Short circuit between pin-4 – FG
Re
place the
cable with the
good cable
that normalizes
the connection
condition.
Paper feed motor
Remove the HOPSIZE connector
of the
PU board and check that approx. 3.4
can be
measured between pin-1 -pin-2 at the cable end,
and that approx. 5 can be measured between
pin-3 -pin-4 respectively.
Replace the
paper feed
motor.
(3-2-5) Solenoid operation check
Feed clutch Confirm that the paper feed solenoid works
normally by using the Motor & Clutch Test of the
self-diagnostic mode.
Pull out the cassette for the rollers to be seen,
and check operation.
Replace the
CU/PU board
or the feed
solenoid.
Check item Check operation
Actions for NG
results
(3-2-6) Check the system connection
Feed clutch cord Ch
eck the connection condition of the cable.
Check if the connector is connected in the half-
way only or not, and check if the connector is
inserted in a slanted angle or not. Check also that
cables are assembled without any abnormality.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
Cord for feed clutch Check that any cable is not pinched during
assembling of the printer.
Pull out the CU/PU board HOC connector 14,
and check the following at the side of the cord.
Replace the
clutch and
properly
assemble
appropriate
parts.

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