Oki MB472w User Manual

Oki Data CONFIDENTIAL
45762101TH Rev.1
2-38
2. TROUBLESHOOTING PROCEDURES
Check item Checking Action in case of fail
(2-1-2) Confirmation of the power switch LED
Power Switch LED Confirm whether the LED is off.
If the LED blinks rapidly, the
number of blinking times in a
cycleshows an error. The timing
of blinking rapidly is shown in the
below figure
Replace either of the
power supply unit, the
CU board (MRM), SW-
Assy (Front), the cables
connected to the CU
board and power supply
unit or the cables
connected to the CU
board and SW-assy.
In case of 2, 4, 8 or 10
times of LED blinking
rapidly: Replace either
of the power supply unit,
the CU board (MRM),
the cables connected
to the power supply unit
and the CU board.
In case of 3, 6 or 9
times of LED blinking
rapidly: Replace the CU
board (MRM).
Check item Checking Action in case of fail
(2-1-3) Checking connections
Connection between low-
voltage power supply unit and
CU/PU board (MRM)
Make sure the low-voltage power
supply unit is connected to the
POWER connector on the CU/
PU board (MRM) properly.
Check whether the cable
connector is half-connected
or tilted, or whether wires are
broken.
Check whether there is any
fault in the cable assembly, e.g.,
missing wires.
Connect the cable
properly.
Cable assembly connecting
low-voltage power supply unit
to CU/PU board (MRM)
Replace the cable with
a good cable.
Connection between low-
voltage power supply unit and
SU board (MSU)
Do the checking as described in
(1-1-2).
Refer to (1-1-2).
Cable assembly connecting
low-voltage power supply unit
to SU board (MSU)
Connection between CU/PU
board (MRM) unit and SU
board (MSU)
Cable assembly connecting
CU/PU board (MRM) to SU
board (MSU)
1.0 sec lighting
(No blinking)
A cycle
…
One time blinking (2.5Hz)
ON times 250mS
OFF times 150mS
N times blinking
ON
OFF
Rapid blinking of the LED

Oki MB472w Specifications

General

Functions	Print, Copy, Scan, Fax
Print Technology	Laser
Print Resolution	1200 x 1200 dpi
Warm-up time	Less than 30 seconds
Copy Resolution	600 x 600 dpi
Maximum number of copies	99 copies
Scan Resolution	600 x 600 dpi
Fax Transmission Speed	33.6 Kbps
Paper Capacity	250 sheets
Multi-Purpose tray capacity	100 sheets
ADF input capacity	50 sheets
Maximum input capacity	350 sheets
Standard output capacity	150 sheets
Internal memory	512 MB
Monthly Duty Cycle	30, 000 pages
Maximum Paper Size	A4
Print Speed (Black)	33 ppm
Copy Speed (Black)	33 cpm
Scanner Type	Flatbed, ADF
Fax memory	Up to 200 pages
Standard printer languages	PCL6, PCL5e, PostScript 3
Display	LCD
Connectivity	USB 2.0, Ethernet, Wireless
Mobile printing technologies	Google Cloud Print, AirPrint