Oki MC873dn User Manual

Oki Data CONFIDENTIAL
45850101TH Rev.1
2-41
2. TROUBLESHOOTING PROCEDURES
2.5.5.(1) LCD Display Trouble
(1-1) LCD displays nothing
Check item Check work
Actions to be taken
at NG
(1-1-1) Checking fuse
Fuse on Scanner board
(6SU)
Check whether F2 or F6 has
blown.
Replace F2 or F6 or
Scanner board (6SU).
(1-1-2) Checking connections
Connection between low-
voltage power supply unit
and Scanner board (6SU)
Make sure the low-voltage
power supply unit is connected
to the POWER_IN connector
on the Scanner board (6SU)
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 Scanner board (6SU)
Replace the cable with
a good cable.
Connection between
Scanner board (6SU) and
operation panel
Make sure the 22-pin FFC is
connected to the 7 INCHIF
connector on the Scanner
board (6SU) properly.
Make sure the 22-pin FFC is
connected to the SUIF
connector
on Panel board (TP1)
properly.
Check whether the cable
connector is half-connected or
tilted.
Connect the cable
properly.
FFC connecting Scanner
board (6SU) to Panel board
(TP1)
Check for broken wires using a
tester.
Check visually whether the
sheath peels.
Replace the cable with
a good cable.
Check item Check work
Actions to be taken
at NG
(1-1-2) Checking connections
Connection between
Scanner board (6SU) and
CU/PU board
Make sure the 50-pin FFC
is connected to the CD2_CUIF
connector on the Scanner
board (6SU)
properly.
Make sure the 50-pin FFC
is connected to the CD2_CUIF
connector on the CU/PU board
(6CU) properly.
Check whether the cable
connector is half-connected or
tilted.
Connect the cable
properly.
FFC connecting Scanner
board (6SU) to CU/PU
board (6CU)
Check for broken wires using a
tester.
Check visually whether the
sheath peels.
Replace the cable with
a good cable
(1-1-3) Checking power supplies
AC power supplied to the
printer
Check the supplied voltage
from the AC power source.
Supply AC power.
3.3VS and 5V power
supplied to Scanner board
(6SU)
Check the 3.3VS power at 1 pin
and 5V power at 3, 4 pin of the
POWER_IN connector on the
Scanner board (6SU).
Replace the low
voltage power supply
or CU/PU board (6CU)
5V and 3.3VS power
supplied to Panel board
(TP1)
Check the power at pin of the
CN1 connector on the Panel
board (TP1).
Replace the Scanner
board (6SU).
(1-1-4) Checking for short circuit of power supply
3.3VS, 5V and 24V power
supplied to Scanner board
(6SU)
Check for a short circuit using
the POWER connector on the
Scanner board (6SU).
1pin: 3.3VS
3,4pin: 5V
7,8p i n : 24V
2,5,6,9,10pin 0V
If there is a short circuit, locate
it.
Disconnect the cables from the
Scanner board (6SU) one by
one to
locate the short circuit.
Replace the short-
circuited component.

Oki MC873dn Specifications

General

Duplex printing	Yes
Print technology	LED
Maximum resolution	1200 x 600 DPI
Time to first page (black, normal)	9.5 s
Print speed (black, normal quality, A3)	20 ppm
Print speed (black, normal quality, A4/US Letter)	35 ppm
Copier resize	25 - 400 %
Maximum copy resolution	600 x 1200 DPI
Maximum number of copies	999 copies
Time to first copy (black, normal)	10 s
Copy speed (black, normal quality, A4)	35 cpm
Scan to	CIFS, E-mail, FTP, HTTP, Image, USB
Scan drivers	TWAIN
Scanner type	ADF scanner
Output color depth	24 bit
Scan speed (color)	50 ppm
Image formats supported	JPG, TIF
Document formats supported	PDF, XPS
Optical scanning resolution	600 x 600 DPI
Faxing	Color faxing
Fax memory	8 MB
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	1000
Digital sender	-
Printing colors	Black, Cyan, Magenta, Yellow
Maximum duty cycle	75000 pages per month
Page description languages	Epson FX, IBM ProPrinter, PCL 5c, PCL 6, PDF 1.7, PostScript 3
Wi-Fi	No
Cabling technology	10/100/1000Base-T(X)
Security algorithms	802.1x RADIUS, EAP, SSL/TLS, WPA2
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Supported network protocols (IPv4)	TCP, DHCP, DHCPv6, BOOTP, HTTP, HTTPS, DNS, DDNS, WINS, , UPNP, Bonjour, SNMPv1&v3, SNTP, IPP, IPPS, WSD Print, WSD Scan, LLTD, IEEE802.1X, LPR, Port9100, Telnet, FTP, IPSEC, SecureProtocolServer, LDAP, LDAPS, CIFS, FTP, FTPS, SMTP, SMTPS, POP3
Internal memory	1260 MB
Internal storage capacity	250 GB
Sound power level (standby)	37 dB
Sound pressure level (printing)	54 dB
Paper input type	Paper tray
Total input capacity	300 sheets
Maximum input capacity	400 sheets
Total number of input trays	1
Auto document feeder (ADF) input capacity	100 sheets
Envelopes sizes	10, C4, C5, DL, Monarch
Custom media width	148.5 - 297 mm
Custom media length	210 - 431.8 mm
Paper tray media types	Banner, Envelopes, Plain paper
Paper tray media weight	64 - 220 g/m²
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size), Statement (140 x 216mm)
ISO A-series sizes (A0...A9)	A3, A4, A5, A6
ISO B-series sizes (B0...B9)	B4, B5
Maximum ISO A-series paper size	A3
Multi-Purpose Tray media weight	64 - 256 g/m²
Auto Document Feeder (ADF) media weight	60 - 120 g/m²
Display	LCD
Control type	Touch
Product color	Black, White
Display diagonal	7 \
Market positioning	Business
Standard interfaces	Ethernet, RJ-11, USB 2.0
Optional connectivity	Wireless LAN
USB 2.0 ports quantity	2
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	1400 W
Power consumption (off)	0.1 W
Power consumption (sleep)	3 W
Power consumption (PowerSave)	30 W
Power consumption (average operating)	850 W
Sustainability certificates	ENERGY STAR
Storage temperature (T-T)	0 - 43 °C
Operating temperature (T-T)	10 - 32 °C
Storage relative humidity (H-H)	10 - 90 %
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Depth	600 mm
Width	563 mm
Height	700 mm