Oki MC561 User Manual

44473001TH Rev.1
232 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
7.5.4. (6) Paper running jam (error code 381:)
(6-1) Jam occurs immediately after the power is turned on.
Check item Check operation
Actions for NG
results
(6-1-1) Check condition of the running path.
Paper running path
of the front unit
Ch
eck if paper is jammed or not in the paper
running path.
Remove the
jammed paper.
(6-1-2) Check condition of the mechanical parts
Check the sensor
lever of the WR
sensor.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor lever
with the good
sensor lever.
(6-1-3) Check condition of electrical parts
Check the detection
condition of the
sensor signal.
Confirm that the sensor signals are normally
detected by using the SWITCH SCAN function of
the self-diagnostic mode.
Replace the
CU/PU board,
or appropriate
sensor(s) or
connection
cord(s).
Check the sensor
lever of the WR
sensor.
Check the following signal by using the CU/PU
board RGSNS connector 16:
Replace the
sensor.
(6-2) Jam occurs immediately after a paper is taken into printer.
Check item Check operation
Actions for NG
results
(6-2-1) Check condition of the paper running path
Paper running path
on the belt.
Remove the ID unit and check if paper is jammed
or not in the paper running path.
Remove the
jammed paper.
(6-2-2) Check condition of the mechanical parts
Check the sensor
lever of the WR
sensor.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor lever
with the good
sensor lever.
(6-2-3) Motor operation check
Paper feed motor
driver, belt motor
driver and ID motor
C
o
nfirm that the paper feed motor, belt motor
and ID motor work normally by using the Motor &
Clutch Test of the self-diagnostic mode.
Check if any load exists or not.
Feed motor
driving cord,
image drum
motor driving
cord, belt
motor, fuser
driving cord
If any attempt
of using new
ID unit or new
belt unit as a
trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
Paper feed motor,
belt motor
Pull out the CU/PU board BELT connector 1, and
check the following at the side of the connector:
Several M
between Pin 1 and frame ground
Several M between Pin 2 and frame ground
Several M between Pin 3 and frame ground
Several M between Pin 4 and frame ground
Pull out the CU/PU board HOP connector 3, and
check the following at the side of the connector:
Several M between pin-1 – FG
Several M between pin-2 – FG
Several M between pin-3 – FG
Several M between pin-4 – FG
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