Oki MB451 User Manual

Other Issues
-162-
Feeding Issues
Memo
 If the following information does not solve the trouble, contact your dealer.
The printed image is
skewed.
The document is loaded
improperly.
Load the document properly. P. 3 8
An unsuitable document is loaded
in the ADF.
Load a suitable document in the
ADF.
P. 3 8
Foreign materials may be present
on the ADF document glass.
Clean the ADF document glass. P.172
Symptom Point to check Remedy Reference
Symptom Point to check Remedy Reference
The document is not
ejected from the
machine.
The document jammed. Remove the jammed document
and re-load it.
P.131
The document often
jams.
The document is not appropriate
for the machine.
Use an appropriate document. P. 3 7
The document guides are not
correctly adjusted.
Adjust the document guides to the
document.
P. 3 8
There is a piece of paper inside the
ADF.
Open the document cover and
remove any paper.
P.131
The rollers in the ADF are not
clean.
Clean the rollers in the ADF. P.172
 The paper often jams.
 Multiple sheets are fed
at once.
 The paper is fed at an
angle.
The machine is inclined.
Place the machine on a flat surface. -
The paper is too light or too heavy. Use the appropriate paper for the
machine.
P. 2 9
The paper is moist or has a static
charge.
Use paper stored under proper
temperature and humidity
conditions.
P. 3 1
The paper is wrinkled, folded or
curled.
Use appropriate paper for the machine.
Fix the re-flexed paper.
P. 2 9
Something is already printed on
the back side of the paper.
You cannot use paper that has been
printed on for tray 1 and tray 2.
Load it in the MP tray or Manual
Feeder for printing.
P. 3 4
The edges of the paper are not
kept even.
Fan the paper and even up the
edges.
P. 3 2
There is only one sheet of paper in
the tray.
Load several sheets of paper. P. 3 2
You have added new paper onto
the paper already loaded in the
tray.
Remove the already loaded paper,
stack it onto the new paper, even
up the edges and load the paper
with the old paper on top.
P. 3 2
The paper is loaded at an angle. For tray 1 and tray 2, adjust the
paper width guide and stopper to
the paper.
For the MP tray or Manual Feeder,
adjust the paper width guide to the
paper.
P. 3 2
Envelopes are not correctly loaded. Load envelopes correctly. P. 3 4
Paper, envelopes or labels whose
weight is between 123 and 163 g/m
2
(33 and 43 lb) is loaded on the tray 1
and tray 2.
Load the paper, envelopes or labels
whose weight is between
1 23 and
1 63 g/m
2
(33 and 43 lb) in the MP
tray (MB451/MB451w/MB471/
MB471w/MB491/ES4191 MFP) or
Manual Feeder (MB441/MB461/
ES4161 MFP).
P. 3 4
P. 3 7

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 %