Oki B4250 Series User manual

B4250/B4350
user's guide

PREFACE > 2
PREFACE
Every effort has been made to ensure that the information in this document is complete,
accurate, and up-to-date. The manufacturer assumes no responsibility for the results of
errors beyond its control. The manufacturer also cannot guarantee that changes in
software and equipment made by other manufacturers and referred to in this guide will
not affect the applicability of the information in it. Mention of software products
manufactured by other companies does not necessarily constitute endorsement by the
manufacturer.
While all reasonable efforts have been made to make this document as accurate and
helpful as possible, we make no warranty of any kind, expressed or implied, as to the
accuracy or completeness of the information contained herein.
The most up-to-date drivers and manuals are available from the Oki Europe website:
http://www.okieurope.com
http://www.okieurope.comhttp://www.okieurope.com
http://www.okieurope.com
Copyright © 2004. All rights reserved.
Oki and Microline are registered trademarks of Oki Electric Industry Company, Ltd.
Energy Star is a trademark of the United States Environmental Protection Agency.
Hewlett-Packard, HP, and LaserJet are registered trademarks of Hewlett-Packard
Company.
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corporation.
Apple, Macintosh, Mac and Mac OS are registered trademarks of Apple Computer.
Other product names and brand names are registered trademarks or trademarks of
their proprietors.
As an Energy Star Program Participant, the manufacturer has
determined that this product meets the Energy Star guidelines for
energy efficiency.
This product complies with the requirements of the Council Directives
89/336/EEC (EMC) and 73/23/EEC (LVD) as amended where applicable
on the approximation of the laws of the member states relating to
electromagnetic compatibility and low voltage.
NOTE
The PostScript Emulation feature described in this guide is only
available in some countries.

CONTENTS > 3
CONTENTS
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Using your printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Online usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Printing Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Abbreviations used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Printer components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operator panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
B4250, B4250n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Control button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Status Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Printing menu settings . . . . . . . . . . . . . . . . . . . . . . . . . . 22
B4350, B4350n, B4350nPS. . . . . . . . . . . . . . . . . . . . . . . . . 23
Operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Panel elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Changing the display language . . . . . . . . . . . . . . . . . . . 31
Printing menu settings . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Paper recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Paper and envelope types . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Transparencies and adhesive labels. . . . . . . . . . . . . . . . . . 34
Installing paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Face up and face down printing. . . . . . . . . . . . . . . . . . . . . . 36
Automatic feed sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Printing envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heavyweight paper or cardstock . . . . . . . . . . . . . . . . . . . . . 38
Paper feed, size and media setting . . . . . . . . . . . . . . . . . . . 39
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 40
Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

CONTENTS > 4
Printer drivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Windows operating systems . . . . . . . . . . . . . . . . . . . . . . . . 45
Installed options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Macintosh operating systems . . . . . . . . . . . . . . . . . . . . . . . 46
Installed options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Printer settings in Windows . . . . . . . . . . . . . . . . . . . . . . . . . 47
Printing preferences in Windows applications . . . . . . . 47
Setting from Windows Control Panel . . . . . . . . . . . . . . . 56
Printer settings in Macintosh. . . . . . . . . . . . . . . . . . . . . . . . 62
Consumables and maintenance . . . . . . . . . . . . . . . . . . . . . . . . 63
Consumable order details . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Toner cartridge life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
When to replace the toner cartridge . . . . . . . . . . . . . . . . . . 64
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 64
Replacing the toner cartridge . . . . . . . . . . . . . . . . . . . . . . . 64
Image drum life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
When to replace the image drum. . . . . . . . . . . . . . . . . . . . . 66
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 66
Replacing the image drum . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Resetting the drum counter . . . . . . . . . . . . . . . . . . . . . . . . . 68
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 68
Generating a cleaning page . . . . . . . . . . . . . . . . . . . . . . . . . 68
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 69
Cleaning the LED array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Status and error messages . . . . . . . . . . . . . . . . . . . . . . . . . 71
B4250, B4250n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
B4350, B4350n, B4350nPS . . . . . . . . . . . . . . . . . . . . . . 71
Paper Jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Input jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Feed jam or exit jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Print quality problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Software problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

CONTENTS > 5
Hardware problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Installing options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Overall dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Paper and tray information . . . . . . . . . . . . . . . . . . . . . . . . . 82
Notes/symbols/terms . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Oki contact details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

NOTES, CAUTIONS AND WARNINGS > 6
NOTES, CAUTIONS AND WARNINGS
NOTE
A note appears in this manual like this. A note provides additional
information to supplement the main text which may help you to use and
understand the product.
CAUTION!
A caution appears in this manual like this. A caution provides
additional information which, if ignored, may result in equipment
malfunction or damage.
WARNING!
A warning appears in this manual like this. A warning provides
additional information which, if ignored, may result in a risk of
personal injury.

INTRODUCTION > 7
INTRODUCTION
Congratulations on purchasing this 22 pages per minute
monochrome page printer.
Your new printer is designed with a range of advanced features to give
you crisp black and white pages at high speed on a wide range of print
media.
For your information, a summary of the main features of your printer
is given below.
PRINTER FEATURES
lFive different models to choose from: B4250, B4250n, B4350,
B4350n (n denotes Network Interface Card included),
B4350nPS (nPS denotes Network Interface Card and
PostScript PS Level 3 emulation DIMM included)
lMemory: 16MB
lHigh speed printing: 22 pages per minute
lResolution: 1200 x 600 dpi
lPaper handling: 250 sheets (80g/m²)
lEmulation: Printer Control Language PCL6, PCL5e, Epson FX,
IBM ProPrinter
lBarcodes: embedded for SIDM emulations
lUSB 2.0 and Parallel interfaces
l“Ask Oki” – a brand new, user-friendly function that gives a
direct link from your printer driver screen (but not illustrated in
this guide) to a dedicated web site specific to the exact model
you are using. This is where you’ll find all the advice,
assistance and support you could need to help you get the
best possible results from your Oki printer.
Additionally, the following optional features are also available:
l10/100 BASE-TX Network Interface Card: to make the B4250
and B4350 network compatible

INTRODUCTION > 8
l16, 32, 64, 128, 256MB RAM DIMM: to extend the main
memory of your printer and speed up the processing of large
files
lRS232C Card: to provide serial interface capability for the
B4250 and B4350
lSecond paper tray: to increase your printer’s paper handling
capacity by 500 sheets (80g/m²)
lMulti-purpose tray: to extend the range of media your printer
can accommodate (capacity 100 sheets (80g/m²) or 50
envelopes)
lOne of the following can be added:
(a) 8MB Flash DIMM: to allow the storage of additional
fonts or bar codes for the B4250, B4250n, B4350,
B4350n
(b) 16MB Flash DIMM: to allow the storage of additional
fonts or bar codes for the B4250, B4250n, B4350,
B4350n
(c) PostScript PS level 3 DIMM: to add PostScript emulation
to the B4350 or B4350n. Cannot be added in
conjunction with extra flash memory. (See the section
entitled “Installing Options” for full details.)
USING YOUR PRINTER
To help you get the most from your printer, the manufacturer has
provided a variety of supporting materials of which this manual is one
example. A summary of these materials and their purposes is given in
the following chapter.

ABOUT THIS MANUAL > 9
ABOUT THIS MANUAL
This manual is the user’s guide (check the Oki Europe website,
www.okieurope.com, for the most up-to-date version) for your printer
and forms part of the overall user support listed below:
lQuick set-up guide: to describe how to unpack, connect and
power up your printer.
lThis User’s Guide: to help you to operate your printer and
make the best use of its many features. Also included are
guidelines for troubleshooting and maintenance to ensure that
it performs at its best. Additionally, information is provided for
adding optional accessories as your printing needs evolve.
lInstallation Guides: accompany consumable items and
optional accessories to describe how to install them.
lOnline Help: online information associated with the printer
driver and Status Monitor software.
This manual has been written using more than one printer as a model
and the illustrations/screenshots reflect this. What you see will be
appropriate to the model you are using.
ONLINE USAGE
This manual is intended to be read on screen using an Adobe Acrobat
Reader. Use the navigation and viewing tools provided in Acrobat.
You can access specific information in two ways:
lIn the list of bookmarks down the left hand side of your screen,
click on the topic of interest to jump to the required topic. (If
the bookmarks are not available, use the Table of Contents.)
lIn the list of bookmarks click on Index to jump to the Index. (If
the bookmarks are not available, use the Table of Contents.)
Find the term of interest in the alphabetically arranged index
and click on the associated page number to jump to the page
containing the subject.

ABOUT THIS MANUAL > 10
PRINTING PAGES
The whole manual, Individual pages, or sections may be printed. The
procedure is:
1. From the toolbar, select [File], then [Print] (or press the
Ctrl + P keys).
2. Choose which pages you wish to print:
(a) [All pages], for the entire manual.
(b) [Current page]
for the page at which you are looking.
(c) [Pages from] and [to] for the range of pages you specify
by entering their page numbers.
3. Click on [OK].

ABOUT THIS MANUAL > 11
ABBREVIATIONS USED
The following abbreviations are used in this manual:
Abbreviation Meaning
Ctrl Control
dpi dots per inch
DIMM Dual In-line Memory Module
nnetwork card installed
LED Light Emitting Diode
MFT Manual Feed Tray
MPT Multi-purpose Tray
NIC Network Interface Card
PCL Printer Control Language
PS PostScript (emulation)
PSE PostScript Emulation
RAM Random Access Memory
SIDM Serial Impact Dot Matrix

PRINTER COMPONENTS > 12
PRINTER COMPONENTS
Apart from the Operator panels, which are described in the next
chapter, the B4250n, B4350, B4350n, B4350nPS printers look
similar from the outside. The important components are identified in
the representations below.
1. Operator panel (B4350 shown)
2. Top paper exit bin (150 sheets, face down)
3. Top cover release button
4. Top paper exit bin extension
5. Top paper exit bin extension paper guide
6. Paper tray content indicator
7. ON/OFF switch
8. Rear paper exit tray (50 sheets, face up)
9. Rear paper exit tray paper guide
»
1
2
3
4
5
6
7
8
9

PRINTER COMPONENTS > 13
10. LED array
11. Image drum
12. Manual feed tray (single sheet) (shown in closed position)
13. Paper feed tray (250 sheets)
14. Toner cartridge
15. Fuser unit
16. Top cover
·
¯
10
11
12
13
14
15
16

PRINTER COMPONENTS > 14
17. Power cable connection
18. Cooling fan
19. USB interface connection
20. Parallel interface connection
21. Second paper tray (optional) connection
22. Network card (standard on B4250n, B4350n, B4350nPS and
optional on B4250, B4350)
23. RS232 serial interface card (optional on B4250, B4350)
24. Multipurpose tray (optional) connection
17
18
19
20
21
22
24 23

OPERATOR PANELS > 15
OPERATOR PANELS
This chapter describes the function of the operator panel on your
printer. It is useful to describe the Status Monitor software at this
point as it provides the B4250, B4250n status information and the
equivalent of the menu control panel on the B4350, B4350n,
B4350nPS. (See “Printer Drivers”for installation of the Status
Monitor.)

OPERATOR PANELS > 16
B4250, B4250N
OPERATOR PANEL
The B4250, B4250n operator panel consists of 4 indicating LEDs and
a control button. From left to right, the LEDs indicate Power On, Ready,
Manual feed and Error.
LED INDICATORS
The LED indicators show the status of the printer and have five
operating conditions as follows:
lIndicator off
lIndicator on
lFlash 1 - slow blink - 1 long flash every 4 seconds
lFlash 2 - blink - 1 flash per second
lFlash 3 - rapid blink - 4 flashes per second.
All four LED indicators come on momentarily when power is switched
on using the main power switch.
Power on LED (green)
This indicator comes on and stays on when the printer is switched on
using the main power switch.

OPERATOR PANELS > 17
Ready LED (green)
lIndicator on
onon
on - the printer is on-line
on-lineon-line
on-line and ready to receive data.
lIndicator off
offoff
off - the printer is off-line
off-lineoff-line
off-line and cannot receive data.
The meaning of the indicator LEDs when they flash (x) is summarised
as follows:
CONTROL BUTTON
The primary functions of the control button are activated by pressing
the switch momentarily and releasing. The primary functions are as
follows:
lTurning the printer off-line.
lTurning the printer on-line (ready).
lResuming printing after a paper error, paper jam, print
overrun, page overflow, or receiving buffer overflow.
lInterrupting data processing when the printer is receiving and
processing data.
Flash type Ready
LED
(Green)
Manual feed
LED
(Amber)
Error
LED
(Amber)
Meaning
Flash 1 –
slow blink
x The printer is data processing
when printing has been
suspended.
xThe image drum requires
changing or toner is low.
Flash 2 —
blink
x The printer is receiving and
processing data during printing or
the printer is resetting itself.
xThe printer is requesting that
manual feed is used for paper
feed.
x There is a printing error, problem
with paper or a cover open.
x x x There is a minor error with the
printer.
Flash 3 —
rapid blink
x x x There is a major error with the
printer.

OPERATOR PANELS > 18
lResuming data processing.
The secondary functions of the control button are activated after
turning the printer off line, then pressing and holding the switch for at
least two seconds before releasing. The secondary functions are as
follows:
lPrinting the demo and menu pages.
lPrinting any data held in the buffer after printing has been
cancelled.
The other functions of the control button are activated after turning
the printer off line then pressing and holding the switch for at least
five seconds before releasing. The other functions are as follows:
lPrinting a cleaning page.
lResetting the printer and clearing the buffer after printing has
been cancelled.
NOTE
Demo and menu pages can also be printed using the printer Status
Monitor.
NOTE
A cleaning page can also be printed using the printer Status Monitor.
NOTE
To reset the printer to the default settings of the manufacturer, the
control button is pressed and held down while the printer is switched on
with the main power switch. The LED indicators blink when the printer
has reset to the default settings.

OPERATOR PANELS > 19
STATUS MONITOR
After installing the printer driver software onto your computer, the
Status Monitor is then installed to indicate what is happening to the
printer when it is being used. (See the chapter entitled “Printer
Drivers”.) This Status Monitor is also used to control and change the
various printer settings.
Using the Printer Status Monitor
Viewing the status of the printer, and viewing or changing the printer
settings are carried out as follows:
1. Click on [Start], [Programs] and select
the Status Monito Status MonitoStatus Monito
Status Monitor. The
current printer status is shown.
2. Click on the window maximise
maximisemaximise
maximise button and the view will
expand to include the Printer Setup
Printer SetupPrinter Setup
Printer Setup and Preferences
PreferencesPreferences
Preferences tabs.

OPERATOR PANELS > 20
Printer Setup Tab
Selecting this tab provides access to the Printer Menu button, which,
when selected, enables configuration of the printer settings via a
series of tabs described in outline below. At all stages, detailed on-
line help is provided via the Help
HelpHelp
Help button.
1. Paper
PaperPaper
Paper: set paper size for standard tray, secondary tray, MPF
and manual feed, tray sequence and default number of copies.
2. Layout
LayoutLayout
Layout: set paper cassette size, printer emulation, lines per
page and paper orientation.
3. Quality
QualityQuality
Quality: set resolution (dpi), smoothing and darkness.
4. Economy
EconomyEconomy
Economy: set power save delay, toner save, auto eject time,
manual timeout, low toner action and jam recovery.
5. Test Print
Test PrintTest Print
Test Print: print demo page, printer menu setting list, a list of
available fonts and clean the printer.
6. Memory
MemoryMemory
Memory: set raster buffer (normally set to auto
autoauto
auto) and confirm
buffer size.
7. Maintenance 1
Maintenance 1Maintenance 1
Maintenance 1: configure printer serial and parallel
interfaces, clearable warning timing and reset drum counter
and menu.