Oki MC561 User Manual

44473001TH Rev.1
230 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
Check item Check operation
Actions for NG
results
(4-2-4) 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 HOP connector 1, and
check the following at side of the cord:
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 Pull out the CU/PU board HOP connector 1,
and check whether there is a resistance of
approximately 3.4
or 5 between the pins 1 and 2,
and between the pins 3 and 4, at the cord side.
Replace the
paper feed motor.
7.5.4. (5) Paper feed jam (error code 390: Multipurpose tray)
(5-1) Jam occurs immediately after the power is turned on. (Multipurpose tray)
Check item Check operation
Actions for NG
results
(5-1-1) Check condition of the paper running path
Paper running path
of the multipurpose
tr
ay
Check if paper is jammed or not in the paper
running path.
Remove the
jammed paper.
(5-1-2) Check condition of the mechanical parts
IN sensor and WR
sensor lever check
Check the sensor lever shapes and operations
for any problem
Replace the
sensor lever(s)
with proper
one(s)
(5-1-3) 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).
In sensor and WR
sensor output level
check
Check the following signals by using the CU/PU
board RGSNS connector 16:
Pin 2: WR sensor
Pin 5: IN sensor
Confirm that the above signal levels change
when the sensor lever is operated.
Replace the
connection
cable.

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