Oki MC561 User Manual

44473001TH Rev.1
239 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
Check item Check operation
Actions for NG
results
(10-1-3) Sensor check
Up/Down sensor
lever (unified
structure with the
left link lever)
Ch
eck if shape and movement of the sensor
levers have any abnormality or not.
Replace the left
link lever.
Up/Down sensor Confirm that the sensor signals are normally
detected by using the SWITCH SCAN function of
the self-diagnostic mode.
Check if the SCAN state changes or not when
the incoming light is interrupted/passed by using
a piece of paper or the like for the transparent
type sensor.
Replace the
high voltage
board.
(10-2) Error occurs during the Down movement of the ID unit
Check item Check operation
Actions for NG
results
(10-2-1) Check the mechanical load during the Down movement
Mechanical load
during installation
and removal of the
ID unit
Check if abnormal heavy load is applied when
re
moving the ID unit.
Replace the ID
unit, or replace
the right/left
side plate.
Greasing to the
right and left Up/
Down link levers
Check if the slant surface of the link lever is
coated by grease or not.
Apply grease.
Assembled
condition of the
right and left Up/
Down link levers
Ch
eck if any part exists or not in the vicinity of
link lever, that hampers movement of the link
lever.
Assemble them
correctly.
7.5.4. (11) Fuser unit error (error 170 to 177)
(11-1) Error occurs immediately after the power is turned on.
Check item Check operation
Actions for NG
results
(11-1-1) Thermistor is defective Note)
Upper thermistor,
lower thermistor,
frame thermistor
Check the respective thermistors if they are
shorted or opened internally.
Check the resistance value at the connector pins
in the bottom of the fuser unit.
(Refer to section 8.1 Resistance check (fuser
unit).)
Replace the
fuser unit.
If any attempt
of using new
fuser unit as
a trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
In
stalled condition
of fuser unit.
Check if the fuser nit is pressed in until the
connector in the bottom of the fuser unit is surely
co
nnected.
Re-set the fuser
unit.
Note! Service calls 171 error and 171 error can occur when the printer temperature
is below 0
. Turn on the power again after the printer temperature has
increased.

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