Oki MB451 User Manual

Other Issues
-159-
Troubleshooting
7
Image Quality Issues
Memo
 If the following information does not solve your trouble, contact your dealer.
Transmission and
reception of e-mail
not possible.
Not connected to a wireless access
point.
 Check that the wireless access
point power is switched on.
 Check the wireless access point
settings, and then try the manual
settings or automatic settings.
 Restart the wireless LAN function.
 Press the <SETTING> key and
select [Admin Setup] >
[Network Menu] > [Network
Setup] > [Wireless Setting],
and then select [Reconnect
Wireless].
-
Is the e-mail address of the machine
set?
Set the e-mail address of the
machine.
P. 6 5
Did you enter the wrong e-mail
address?
Enter the correct e-mail address. P. 6 5
Is the SMTP server address setting
correct?
Check the SMTP server setting. P.6 5
Is the POP3 server address setting
correct?
Check the POP3 server setting. P. 6 5
Is the DNS server address setting
correct?
Check the DNS server address
setting.
P. 6 5
Is another job running? Wait until the other job finishes. -
Is an error occurring? Follow the instructions displayed on
the display screen of the machine.
P. 1 3 7
Files cannot be saved in
a network file folder.
Is the FTP/CIFS setting right? Check the profile settings. P. 7 6
Is an error occurring? Follow the instructions displayed on
the display screen of the machine.
P. 1 3 7
Symptom Point to check Remedy Reference
Vertical white lines
appear.
The LED heads are dirty. Wipe the LED heads with a soft
tissue paper.
P.174
The toner is low. Replace the toner cartridge. P.168
Foreign material may be present
on the image drum.
Replace the image drum. P.169
The image drum is not installed
properly.
Install the image drum properly. P.169
The ADF document glass is dirty. Clean the ADF document glass. P.172
Printed images are
fading vertically.
The LED heads are dirty. Wipe the LED heads with soft
tissue paper.
P.174
The toner is low. Replace the toner cartridge. P.168
The paper is unsuitable. Use supported paper. -
Symptom Point to check Remedy Reference

Oki MB451 Specifications

General

Duplex printing	Yes
Print technology	LED
Time to first page (black, normal)	5 s
Print speed (black, normal quality, A4/US Letter)	29 ppm
Dimensions (WxDxH)	455 x 425 x 427 mm
All-in-one functions	Copy, Fax, Print, Scan
Color all-in-one functions	No
Maximum duty cycle	30000 pages per month
Copier resize	25 - 400 %
Maximum number of copies	99 copies
Time to first copy (black, normal)	11 s
Scan to	CIFS, Fax, FTP, USB
Grayscale levels	7
Scan speed (black)	37.5 ppm
Scan speed (color)	10 ppm
Image formats supported	BMP, GIF, JPG, PCX, PNG, TGA
Faxing	Mono faxing
Fax memory	200 pages
Modem speed	33.6 Kbit/s
Fax transmission speed	2 sec/page
Total input capacity	- sheets
Total output capacity	150 sheets
Maximum input capacity	350 sheets
Total number of input trays	2
Multi-Purpose tray input capacity	100 sheets
Envelopes sizes	9, 10, C5, C6, DL
Maximum print size	210 x 297 mm
Duplex media weight	60 - 112 g/m²
Paper tray media types	Envelopes
Paper tray media weight	60 - 120 g/m²
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 150 g/m²
Display	LCD
Display resolution	320 x 128 pixels
Market positioning	Business
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Security algorithms	SSL/TLS
Processor frequency	330 MHz
Sound power level (standby)	55 dB
Sound pressure level (quiet mode)	30 dB
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	3 W
Power consumption (PowerSave)	14 W
Power consumption (average operating)	580 W
Mac operating systems supported	Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion
Server operating systems supported	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64
Windows operating systems supported	Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %