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.
Parts of this guide are subject to change without prior notice.
The most up-to-date drivers and manuals are available from the
web site: http://www.okidata.com
Trademark Information
Oki and Microline are registered trademarks of Oki Electric Industry
Company Ltd.
Adobe, PostScript and PostScript 3 are trademarks of Adobe
Systems Incorporated.
Mac OS, EtherTalk and TrueType are trademarks of Apple Computer,
Inc., registered in the U.S. and other countries
Microsoft, MS-DOS, Windows NT and Windows Server are either
registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries.
Other product names and brand names are registered trademarks or
trademarks of their proprietors.
MPS730b User’s Guide > 5
Precautions __________________
Data Loss in Hard Disk/Compact Flash Disk
Saved data may be lost if the hard disk/compact flash in the
printer breaks down due to external shocks or if the power is
accidentally cut off in a manner not following the methods listed
in this guide or other documentation. Oki is not responsible for
such data loss and any consequence caused by such data loss.
Damage Related to Computer Virus
Oki is not responsible for any breakdown of units due to infection
of computer virus.
Class I Laser System
This product is a “Class I Laser System” that does not emit
dangerous laser beam.
• Operate the printer according to the instructions in this guide.
• Do not carry out any operation not mentioned in the guide.
Otherwise, it may lead to unforeseen accident or printer
breakdown.
Important!
• Never attempt any procedure on the printer that is not
specifically described in this guide.
• Unauthorized operation can cause faults or accidents.
• OKI is not liable for any problems resulting from
unauthorized operation of the equipment.
MPS730b User’s Guide > 6
General Conventions ___________
• “Computer” refers to both the personal computer and
workstation.
• [ ]
Indicates items displayed on the computer and the printer
control panel. Also indicates the title of printed reports/lists
from the printer.
• < >
Indicates items such as hard buttons and indicators on the
keyboard and printer.
Important!, Notes, Cautions, Warnings
Important!
Indicates important information which you should read.
Note
Indicates additional information on operations or features.
Caution
Indicates instructions which you should follow to avoid
damage to the printer.
WARNING
Indicates instructions which you should follow to avoid
possible injury.
MPS730b User’s Guide > 7
Illegal Copies and Printouts _____
Copying or printing certain documents may be illegal in your country.
Penalties of fines or imprisonment may be imposed on those found
guilty. The following are examples of items that may be illegal to copy
or print in your country.
• Currency
• Bank notes and checks
• Bank and government bonds and securities
• Passports and identification cards
• Copyright material or trademarks without the consent of the
owner
• Postage stamps and other negotiable instruments
This list is not inclusive and no liability is assumed for either its
completeness or accuracy. In case of doubt, contact your legal counsel.
MPS730b User’s Guide > 8
Basic Operations ____________
Front View
1Default output tray (pages exit print side down)
2Control panel
3Ventilation hole (do not block)
4Tray 1, 150 sheets
5Tray 2, 550 sheets
6Paper meter (amount of paper left in Tray 2)
7Power switch
8Paper stopper for letter or A4 paper
9Host USB Port
MPS730b User’s Guide > 9
Rear View
1Power cord connector
2Parallel connector
3Network connector
4USB connector
5Serial connector
6Duplex unit connector
7Ventilation holes
MPS730b User’s Guide > 10
Internal View
1Drum/toner
cartridge
2Transfer roll
cartridge
3Fuser unitFixes the toner on the paper. Do not touch this
Contains the toner and the photosensitive drum.
Transfers the toner image on the surface of the
photosensitive drum to the paper.
when using the printer as it is hot.
MPS730b User’s Guide > 11
Control Panel Buttons
#
9
6
3
1
4
7
*
0
8
5
2
#
9
6
3
1
4
7
*
0
8
5
2
On Line
Cancel
Help
DEFABC
MNOJKLGHI
WXYZTUVPQRS
Back
Menu
Enter
No. ButtonDescription
1
<Enter>Print mode: press to enter the menu mode.
Menu mode: press to select the currently displayed menu
item.
2
Up ArrowPrint mode: press to enter the menu mode.
Menu mode: Press to navigate up in the menu screen
listings
3
<Back>Menu mode: press to go up one level in the menu, or press
4
Down ArrowMenu mode: press to navigate down in the menu screen
5
<On Line> Press to switch back and forth between on-line (Ready to
6
<Cancel>Print mode: press to cancel printing.
7
<Help>Press for more information regarding error messages on
8
DEFABC
MNOJKLGHI
WXYZTUVPQRS
repeatedly to exit the menu.
listings.
Print) and Off-line status. When Off-line, the machine
cannot receive data or process printing.
Menu mode: press to exit Menu Mode.
line 5 of the display.
Keypad, for making alphanumeric entries.
MPS730b User’s Guide > 12
Control Panel Display/Lights
Ready
Attention
No. NameDescription
1
LCD displayDisplays the setting items, machine status, and
2
<READY> lightWhen lit, the printer is ready to receive data.
3
<ATTENTION> lightWhen lit, operator intervention is required.
4
Host USB PortFor printing from an optional USB Flash Drive
messages.
The LCD Display
Print Mode
The following contents are shown on the screen in print mode.
• Current printer status
• Port receiving data (USB, Net, LPT or Serial)
• Driver (PCL, PS or XL)
•Toner Status bar.
Menu Mode
For configuring settings related to the printer.
This screen appears when you press the <Enter> button.
For more information on the menu mode, see page 41.
MPS730b User’s Guide > 13
Power Save Mode
This printer is equipped with a Power Save mode to reduce power
consumption when it is left idle. The default time from last print
activity until the printer enters Power Save mode is 5 minutes.
This time can be changed using the printer menu (see page
49).
A message appears on the operator panel indicating Power Save
Mode. Power consumption during Power Save mode is 10 Watts
or less.
Exiting the Power Save Mode
The printer automatically exits from Power Save mode once it
receives data or if any key on the operator panel is pressed.
The time required to exit from Power Save mode to a print-ready
status is about 10 seconds.
Cancelling a Print Job
At the Printer
Press <CANCEL>, then press <ON LINE>.
Note
Pages being printed at the moment will continue to be
printed.
At the Computer
Double-click the printer icon at the bottom right of the
taskbar in Windows.
In the window which appears, click the document name that you
wish to delete, and press <Delete> on your keyboard.
MPS730b User’s Guide > 14
Print Media_________________
Paper Exit Paths
Before sending a job to the printer, make sure you have the
correct exit path engaged.
Top Exit Path
The default path is the top exit bin (1).
Printed pages exit face down.
MPS730b User’s Guide > 15
The Rear Exit Path
Always use the rear exit path for special media such as labels,
card stock, envelopes, etc. This provides the straight-through
path needed to prevent curling and jams.
Printed documents exit face up.
To use the rear exit, be sure the exit lever (1) is pushed up and
the extension tray (2) is pulled out.
See page 24 for more information.
MPS730b User’s Guide > 16
Loading Standard Paper
Examples of paper which works well with this product:
Paper nameWeightPaper type
FX P
Xerox 4024
Xerox 4200
17 lb. US Bond (64 g/m
20 lb. US Bond (75 g/m
20 lb. US Bond (75 g/m
2
)
2
, or 80 g/m2)
2
)
1.Pull the tray out and place it on a flat surface.
2.If installed, remove the lid.
Plain
Plain
Plain
MPS730b User’s Guide > 17
3.If the base plate of the paper tray is raised, push it down.
4.When loading paper longer than A4 size, slide the left and
right lock tabs in the paper tray outwards to unlock them.
MPS730b User’s Guide > 18
5.Hold the grip of the paper tray and pull its extendable part
to the front until it reaches its maximum.
6.Squeeze the length guide and slide it to the desired paper
size (1). Squeeze the right width guide and slide it to the
desired paper size (2).
MPS730b User’s Guide > 19
7.Load the paper with the side to be printed facing up and
with all four corners aligned.
Important!
• Align the right width guide with the paper width
correctly. If the right width guide is not in place, this
may cause paper jams.
• Do not load paper exceeding the maximum fill line or
the maximum capacity allowed.
8.Firmly close the lid of the paper tray and push the tray
completely into the printer.
Important!
If the lid is not firmly closed, the paper can become
misaligned.
MPS730b User’s Guide > 20
Usable Media
TrayMedia SizesWeight Capacity
Tray 1
Tray 2 a nd
optional
Tray s 3
and 4
*1:Requires the paper size settings be done on the control panel.
*2:Requires the paper size settings be done on the control panel and the
printer driver.
*3:Print quality on the part of the paper that extends beyond 14 inches
(356 mm) cannot be guaranteed.
Standard sizes that can be
automatically detected:
Minimum: 3 x 5 inches (76 x
127 mm)
Maximum: 8.5 x 35.4 inches
(216 to 900*3 mm)
Same as above, but custom
sizes are restricted to
Minimum: 3.9 x 5.8 inches (98
x 148 mm)
Maximum: 8.5 x 14 inches
(216 x 356 mm)
:
16-58 lb
US Bond
(60-216
g/m2)
Same as
above
150 sheets
20-lb US
Bond
(75 g/m2)
550 sheets
20-lb. US
Bond
(75 g/m2)
Important!
• To avoid paper jams, select the correct paper size,
type, and tray.
• The printed image may fade due to moisture such as
water, rain or vapor. For details, contact service.
MPS730b User’s Guide > 21
Custom Sizes
Custom size paper can be printed from any tray. It must meet
the following guidelines.
• All Custom sizes must be fed print side up and short edge
first.
•Tray 1
- Minimum: 3 x 5 inches (76 x 127 mm).
- Maximum: 8.5 x 34.4 inches (216 x 900 mm).
• Tray 2 or optional trays 3 and 4
- Minimum: 3.9 x 5.8 inches (98 x 148 mm)
- Maximum: 8.5 x 14 inches (216 x 356 mm).
• Minimum for duplexing or output to Offset Catch Tray: 3.5 x
5.5 inches (89 x 140 mm).
MPS730b User’s Guide > 22
Configuring Custom Sizes
To print on custom size paper loaded in trays 1 to 4, you must
set the paper size on the control panel. Use the Menu to set Auto-
Sense OFF and then set Custom Size for the intended tray.
You may also need to set it in the printer driver, depending on
the paper size. See the description of Express Print for an easy way to
print on various Custom Sizes.
Caution!
When setting the paper size in the printer driver and control
panel, be sure to specify the same size as the actual paper
used. Setting the wrong size for printing will cause printer failure. This is especially true if you configure a bigger size
when using a narrow width paper.
Note
To return to standard paper size settings, select [Auto]. The
printer will automatically detect the size and orientation of
the loaded paper.
MPS730b User’s Guide > 23
Special Media Types
MediaFuser Setting*Exit Path
Transparency*
Pre-PunchedNormalTop o r Re a r
Letter Head or
Pre-Printed
Labels*Thick1**Rear only
Cardstock*Thick2**
PostcardsThick1**
Envelopes*
ThinThinTop o r Re a r
+
+
*No duplexng
+
Half speed
** If you do not get satisfactory results using Thick1 or Thick2,
try using Thick3 for better results.
TransparencyRear only
NormalTop o r Re a r
(43-58 lb. US Bond,
160-216 g/m2)
(28-43 lb. US Bond,
106-159 g/m2)
Thick3Rear only
Rear only
Rear only
Note:
The fuser temperature progression (lowest to highest) is:
Only use transparencies that are designed to withstand the heat required for laser printing. It is possible to damage your printer
by using unsupported transparencies.
Examples of transparencies which work well with this printer.
TransparencySize
Xerox 3R2780Letter
Xerox 3R98202
3M CG3300
A4
Letter
Note:
Transparencies with white frames and full-color
transparencies cannot be used.
Loading Transparencies
1.Make sure the rear exit (1) is open and selected.
MPS730b User’s Guide > 25
2.Remove the tray from the printer.
3.If installed, remove the lid.
MPS730b User’s Guide > 26
4.Remove all paper from a tray before loading
transparencies.
5.Fan the stack of new transparencies before putting them in
the tray.
MPS730b User’s Guide > 27
6.Adjust the paper guides to fit the transparencies.
7.Insert the transparencies into the tray.
MPS730b User’s Guide > 28
Important!
• Place the transparencies in the tray with the side to be
printed facing up.
• Load no more than 100 transparencies in a tray.
• Handle transparencies by the edges with both hands to
avoid getting fingerprints and creases on them.
8.Insert the tray firmly into the printer.
9.Using the Operator Panel or Embedded Web Server (see
page
79), select the Transparency Media Type and
correct Media Size for the tray to be used.
10. In the printer driver or the computer application program,
select Transparency as the media type you wish to use.
Important!
To prevent output transparencies from sticking together,
remove them from the output tray after about 20 sheets,
and then fan them to lower their temperature.
Envelopes
Envelopes that are supported by this printer.
Paper nameSizePaper type
Columbia 3B1183COM10Envelope
Monroe 3B1039
River Series 3B1041
River Series 3B1042
Monarch
C5
DL
MPS730b User’s Guide > 29
Envelope
Envelope
Envelope
Caution!
Only use envelopes designed for use in laser printers. The
heat from the fuser can melt some adhesives and possibly
damage your printer.
Envelopes can be printed from all trays.
Usable standard sizes:
•COM10
•COM9
•C5
•Monarch
•DL
All other envelope sizes must be defined as custom size.
Loading envelopes
1.Make sure the rear exit (1) is open and selected.
MPS730b User’s Guide > 30
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