Oki Microline 490 User Manual

User’s Guide

59348401

Every effort has been made to ensure that the information in this document is complete, accurate, and up-to-date. Oki Data assumes no responsibility for the results of errors beyond its control. Oki Data 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 Oki Data.

Written and produced by the Oki Data Training and Publications Department.

Please address any comments on this publication to:

Mailing Address

Oki Data Americas, Inc. Training & Publications Dept. 2000 Bishops Gate Blvd. Mt. Laurel, NJ 08054-4620

e-Mail Address: pubs@okidata.com Web Site: http://www.okidata.com.

ENERGY STAR

As an ENERGY STAR Partner, Oki Data has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

Trademark Information

OKI and MICROLINE are registered trademarks of Oki Electric Industry Company, Ltd.

NERGY STAR is a registered trademark of the United States

E Environmental Protection Agency

Epson is a registered trademark of Epson America, Inc. IBM is a registered trademark of International Business Machines

Corp. Microsoft and Windows are either registered trademarks or trademarks

of Microsoft Corporation in the United States and other countries.

Safety

Your Oki printer has been carefully designed to give you years of safe, reliable performance. As with all electrical equipment, there are a few basic precautions you should take to avoid hurting yourself or damaging the printer:

• Carefully read all setup and operating instructions. Be sure to save all documents for future reference.

• Read and follow all warning and instruction labels on the printer itself.

• Place your printer on a firm, solid surface. If you put in on something unsteady, it might fall and be damaged.

• Avoid overheating the printer. Do not place it on a soft surface, such as a rug, sofa, or bed. The vents may be blocked, causing the printer to overheat.

• The printer must be installed near a power outlet which will remain easily accessible.

• Be certain that your power source matches the rating listed on the back of the printer. If you aren’t sure, check with your dealer or with your local power company.

• Your printer has a grounded, 3-prong plug as a safety feature. It will only fit into a grounded outlet. If you can not plug it in, chances are that you have an older, non-grounded outlet. Contact an electrician to have it replaced with a grounded outlet. Do not use an adapter to defeat the grounding.

• To avoid damaging the power cord, do not put anything on it or place it where it will be walked on. If the cord becomes damaged or frayed, replace it immediately.

• If you’re using an extension cord or power strip with the printer, make sure that the total of the amperes required by all the equipment on the extension is less than the extension’s rating. Generally, the total ratings of all equipment plugged into any one power line should not exceed 15 amperes. Don’t exceed this unless you know that the power line your equipment is plugged into has a rating above 15 amperes.

• Unplug the printer before you clean it. Use only a damp cloth. Do not use liquid or aerosol cleaners.

• To protect your printer from overheating, make sure no openings on the printer are blocked. Do not put the printer on or near a heat source, such as a radiator or heat register. If you put the printer in any kind of enclosure, make sure it is well ventilated.

• The printhead can get quite hot when it has been printing for a length of time. Do not touch the printhead until it has had a chance to cool off.

• Do not use your printer near water. Do not spill liquid of any kind into it.

• Do not poke anything into the ventilation slots on the sides of the printer. You could get a shock or cause a fire.

• Aside from the routine maintenance described in this document, don’t try to service the printer yourself. Opening the cover may expose you to shocks or other hazards. Don’t make any adjustments other than those outlined in the document. You might cause damage requiring extensive repair work.

• If anything happens that indicates that your printer is not working properly or has been damaged, unplug it immediately. Then, follow the procedures in “Service and Support” for having your printer serviced.

These are some of the things to look for: – The power cord or plug is frayed or damaged. – Liquid has been spilled into the housing, or the printer has

been exposed to water.

– The printer has been dropped or its cabinet has been

damaged.

– The printer doesn’t function normally when you’re

following the operating instructions.

4 Microline 490/491 User’s Guide

Contents

Safety............................................................................ 3

Chapter 1: Introduction ............................................. 7

Printer Features ............................................................................... 7

Chapter 2: Helpful Hints ........................................... 8

Saving Money: Forms Tear-Off...................................................... 8

Saving Time.................................................................................... 8

Internet Support ........................................................................... 8

Paper Park .................................................................................... 8

Operation Tips ................................................................................ 9

Top of Form (TOF) ...................................................................... 9

Turning the Platen Knob .............................................................. 9

Controlling Access to the Printer ................................................. 9

Chapter 3: Using Your Printer ................................ 10

Parts Identification: Rear Feed (Continuous Forms).................... 10

Parts Identification: Top Feed (Single Sheets) ............................. 11

Top of Form (TOF) ....................................................................... 12

Top of Form (TOF) and Forms Tear-Off.................................... 12

Determining if Forms Tear-Off is Off or On.............................. 13

Setting Top of Form (TOF):

Forms Tear-Off OFF (Default Setting) ...................................... 14

Setting Top of Form (TOF):

Forms Tear-Off Set to ON.......................................................... 15

Temporarily Changing the Top of Form Position ...................... 16

Resetting Top of Form to the Factory Default ........................... 16

Forms Tear-Off Feature ................................................................ 17

Potential Problems with Software Packages .............................. 17

Changing the Forms Tear-Off Setting ........................................ 18

Manual Forms Tear Off .............................................................. 18

Paper Park..................................................................................... 18

Changing Paper Paths ................................................................... 19

Continuous Forms to Single Sheets ........................................... 19

Single Sheets to Continuous Forms ........................................... 20

Printhead Gap ............................................................................... 21

Print Quality ................................................................................. 22

Typefaces: LQ Mode .................................................................... 23

Character Pitch ............................................................................. 24

Printer Reset ................................................................................. 25

Emulations .................................................................................... 25

Chapter 4: Menu Mode ............................................ 26

Menu Mode Keys ....................................................................... 26

Entering and Exiting Menu Mode ............................................. 27

Resetting the Menu to the Factory Defaults .............................. 27

Printing the Menu Settings......................................................... 27

Changing the Menu Settings ...................................................... 28

Menu Settings Table ................................................................... 29

Explanations of Menu Items ...................................................... 35

Chapter 5: Maintenance........................................... 41

Replacing the Ribbon Cartridge ................................................... 41

Loading Paper............................................................................... 43

Rear Feed ................................................................................... 43

Top Feed (Single Sheets) ........................................................... 52

Clearing Paper Jams ..................................................................... 54

Rear-Feed Paper Jams ................................................................ 54

Rear-Feed, Repeating Paper Jams.............................................. 55

Single-Sheet Paper Jams ............................................................ 57

Cleaning the Housing ................................................................... 58

Chapter 6: Troubleshooting ..................................... 59

General Information ..................................................................... 59

Problems / Solutions ..................................................................... 60

Appendix A: Parts & Accessories ............................ 65

Purchasing Parts & Accessories ................................................... 65

Replacement Parts ........................................................................ 66

Accessories ................................................................................... 67

Appendix B: Printer Control Codes ....................... 68

Epson LQ Commands .................................................................. 68

IBM Proprinter X24e / XL24e and IBM X24e AGM / XL24e

AGM Commands ......................................................................... 72

Appendix C: Specifications...................................... 75

Appendix D: Installation.......................................... 81

Location ........................................................................................ 81

Unpack.......................................................................................... 81

Install the Ribbon Cartridge ....................................................... 84

Power Connection ........................................................................ 85

Computer Connections ................................................................. 85

Parallel (LPT): IEEE 1284 ......................................................... 85

USB: Specification 1.1 Compliant ............................................. 86

Loading Paper............................................................................... 86

Testing the Printer ......................................................................... 87

Font Sample Test ........................................................................ 87

Rolling ASCII Test ..................................................................... 88

Hexadecimal Dump Mode ......................................................... 89

Emulations .................................................................................... 89

Printer Drivers .............................................................................. 89

Loading the OKI Driver ............................................................. 90

Using a Compatible Driver ........................................................ 90

Index .......................................................................... 91

6 Microline 490/491 User’s Guide

Chapter 1: Introduction

Printer Features

• Super reliable, durable operation: 20,000 hours Mean Time Between Failures (MTBF) at 25% duty cycle and 35% page density

• Advanced paper handling, with built-in rear push tractor and zero-tear forms capability.

• Blazing print speeds, in characters per second (depending on characters per inch selected):

– High Speed Draft Mode: 420 cps (10 cpi) – Utility Mode: 269 to 472 cps – Letter Quality Mode: 105 to 220 cps

• This rugged 24-pin printer can meet the needs of harsh and demanding environments.

Oki Data on the Internet

The Oki Data Web Sites provide the most current information available on your printer.

On-line documents are available for viewing and downloading via Oki Data’s Web Sites.

You may reach Oki Data via the Internet at:

•

www.okidata.com

• my.okidata.com

Chapter 2: Helpful Hints

Saving Money: Forms Tear-Off

The Forms Tear-Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer.

When printing stops, Forms Tear-Off automatically moves the paper to align the perforation with the tear bar (located under the access cover), after a time interval which you select through the menu.

Paper remains in the tear-off position until the printer receives more data. Then, the paper moves back down for printing.

Note: This feature is normally turned off.

Important!

Forms Tear-Off and the Top of Form settings interact. For more information, see “Top of Form (TOF) and Forms TearOff” in Chapter 3: Using Your Printer.

Saving Time

Internet Support

Oki Data provides support via the Internet:

•

www.okidata.com is the main web site, the gateway to Oki

Data’s products and services.

•

http://my.okidata.com is a powerful area of Oki Data’s web

site designed to help you personalize the information and service you get from Oki Data.

Paper Park

Your printer’s paper park feature allows you to print a single sheet (cut-sheet) page without removing continuous feed paper from the printer.

For more information, see “Paper Park” in Chapter 3: Using Your Printer.

Operation Tips

Turning the Platen Knob

Top of Form (TOF)

Top of Form (TOF) sets the print start position. The factory default is 1" from the top.

The Top of Form can be changed in increments of 1/180", either for a single print job or set to a new default. The overall amount of adjustment is limited to avoid paper jams.

The first line prints at the red line of the plastic paper shield (1) on the printhead.

For more information, see “Top of Form (TOF)” in Chapter 3.

Important!

Always turn the printer off before turning the platen knob! If you turn the platen knob when the printer is on, the Top of Form misaligns.

Controlling Access to the Printer

You can control access to the printer by changing the setting for the Operator Panel Function in the Menu from Full Operation (the factory default) to Limited Operation.

When Limited Operation is selected, the

CHARACTER PITCH keys don’t work. This prevents these

settings from being changed from the control panel when several people are using the printer.

For more information, see “Changing the Menu Settings” in Chapter 3: Using Your Printer.

PRINT QUALITY and

Helpful Hints 9

Chapter 3: Using Your Printer

Parts Identification: Rear Feed

(Continuous Forms)

Note: The serial number of your printer is on a label on the

back, beside “S/N.”

Sheet Guide Paper Lever On-Off Switch Platen Knob Control Panel Acoustic Cover Access Cover

Note: For rear feed, the paper lever must be forward.

Parts Identification: Top Feed

(Single Sheets)

Paper Guides Sheet Guide Paper Lever On-Off Switch Platen Knob Control Panel Acoustic Cover (open)

Note: For single-sheet printing, the paper lever must be in the

middle position.

Using Your Printer 11

Top of Form (TOF)

Important!

If you turn the platen knob when the printer is on, the Top of Form misaligns. Always shut the printer off before turning the platen knob!

Note: The factory default setting for the Top of Form (where

the printing should begin) is 1" down from the top of the page.

Top of Form sets the print start position for the printer. It is adjustable in increments of 1/180 of an inch. The amount of adjustment is limited to avoid paper jams.

The first line prints at the red line of the plastic paper shield (1) on the printhead.

Top of Form (TOF) and Forms Tear-Off

Note: Your software may print the first line of print above or

below where TOF is set. You may need to adjust the TOF to meet your software’s requirements.

The Top of Form and Forms Tear-Off settings of your printer interact. How you set the Top of Form depends on whether Forms Tear-Off is On (set to 500 ms, 1 sec, or 2 sec) or OFF (the factory default setting).

12 Microline 490/491 User’s Guide

Determining if Forms Tear-Off is Off or On

There are two ways to determine the status of the Forms Tear-Off menu setting:

• Print the Menu.

• Use the TEAR key.

To print the Menu:

1 Make sure paper is loaded. 2 Hold 3 Press 4 Look for the Form Tear-Off setting in the paper feed group

SHIFT (2), then press SEL (1) to enter the Menu Mode.

PARK (4) to print the menu.

you are using (Rear Feed, Bottom Feed or Top Feed—Forms Tear–Off appears in the Top Feed group only if the optional Roll Paper Stand is installed).

To use the TEAR key:

1 Make sure paper is loaded. 2 Press

TEAR (3).

• If the paper moves up, Forms Tear-off is off.

• If the paper moves down, Forms Tear-off is on.

Using Your Printer 13

Setting Top of Form (TOF):

Forms Tear-Off OFF (Default Setting)

Important!

If you turn the platen knob when the printer is on, the Top of Form misaligns. Always turn the printer off before turning the platen knob!

Note: The first line prints at the red line (1) of the plastic

paper shield on the printhead.

With paper loaded and the printer on and selected: 1 Press

SEL | MENU (1) to take the printer off line.

The SEL light goes out.

2 Press and hold

SHIFT (2), then

Note: When you begin pressing the Micro Feed key, the

printhead will move to the right.

• Press

LF | Micro Feed Down (3) to set the TOF higher (the

paper moves down).

• Press

FF/LOAD | Micro Feed Up (4) to set the TOF lower

(the paper moves up).

3 When you have the TOF set where you want it, press and

hold

SHIFT (2), then press QUIET/TOF (7) to engage the new

setting.

The printhead moves back to the left margin.

4 Press

SEL/MENU (1) to save the setting and place the printer

back on line.

Note: To reset the Top of Form to the factory default, see

“Resetting Top of Form to the Factory Default” later in this chapter.

14 Microline 490/491 User’s Guide

Setting Top of Form (TOF):

Forms Tear-Off Set to ON

Important!

If you turn the platen knob when the printer is on, the Top of Form misaligns. Always turn the printer off before turning the platen knob!

Note: The first line prints at the red line (1) of the plastic

paper shield on the printhead.

With paper loaded and the printer on and selected: 1 Press

PARK (6) to park the paper.

The SEL light goes off and the red alarm light comes on.

2 Press 3 Press

SHIFT (2) and QUIET/TOF (7) to reset the current TOF. FF/LOAD (4) to load the paper.

4 Wait briefly until the paper moves up to the tear position,

then press and hold

TEAR (5).

The paper moves to the current TOF.

5 Keep holding

TEAR, then press and hold SHIFT (2) and

release TEAR.

6 Continue to hold

SHIFT, then

Note: When you begin pressing the Micro Feed key, the

printhead will move to the right.

• Press

LF | Micro Feed Down (3) to set the TOF higher (the

paper moves down).

• Press

FF/LOAD | Micro Feed Up (4) to set the TOF lower

(the paper moves up).

7 When you have the TOF set where you want it, press and

hold

SHIFT (2), then press QUIET/TOF (7) to engage the new

setting.

The printhead moves back to the left margin.

8 Press

SEL/MENU (1) to save the setting and place the printer

back on line.

Note: To reset the Top of Form to the factory default, see the

next page.

Using Your Printer 15

Temporarily Changing the Top of Form

Position

Important

Do not use the platen knob to change the Top of Form. If you turn the platen knob when the printer is turned on, the Top of Form misaligns. Always turn the printer off before turning the platen knob!

To move the Top of Form position lower for one page only:

1 Press 2 Press

SEL to deselect the printer. LF to lower the position of the Top of Form.

Resetting Top of Form to the Factory Default

The factory default setting for the Top of Form (where the printing should begin) is 1" down from the top of the page.

To reset the Top of Form to the factory default:

1 Remove paper from the paper path. 2 Turn the printer off. 3 Press and hold

printer.

4 Reload paper.

PARK + QUIET/TOF while turning on the

16 Microline 490/491 User’s Guide

Forms Tear-Off Feature

Note: This feature is normally turned off. To use Forms

Tear-Off, you must enter the menu and change the setting to the desired time interval (see next page).

The Forms Tear-Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer. It can be used for rear feed continuous forms, bottom feed continuous forms (with the optional push tractor installed) or for top feed roll paper (with optional roll paper stand installed).

When the printer is turned on, the paper feeds to the tear-off position.

When data is received, the paper automatically moves down to the print position (TOF) and printing begins.

Note: You can also move the paper down to the print position

manually by pressing

When printing stops, Forms Tear-Off automatically moves the paper to align the perforation with the tear bar (located under the access cover), after the time interval which you selected through the menu.

Paper remains in the tear-off position until the printer receives more data. Then, the paper moves back down for printing.

TEAR

Notes: The status of the Forms Tear-Off menu setting affects

how you set the Top of Form: see “Top of Form (TOF) and Forms Tear-Off” earlier in this chapter.

Do not use Forms Tear-Off with labels or multipart forms!

Forms Tear-Off cannot be used when the optional pull tractor is engaged.

Potential Problems with Software Packages

If Forms Tear-Off is set to On and the software package you are using “pauses” for a long enough interval while sending data to the printer, Forms Tear-Off may be activated. No data is lost, but this causes uneven print registration due to the paper movement.

If this occurs, use the menu to turn off this feature, then use the

TEAR key to move the paper up to the tear position manually

(see next page).

Using Your Printer 17

Changing the Forms Tear-Off Setting

Note: The default setting for Forms Tear-Off is OFF.

To change the Forms Tear-Off setting:

1 Press 2 Press

3 Press

4 Press SET (5) until the time interval you wish to select

SHIFT (2) + SEL (1). GROUP (3) repeatedly until the Rear Feed or Bottom

Feed group shows in the first column of the printed line, depending on which paper feed you are using,

ITEM (4) repeatedly until Form Tear-Off appears in the

second column:

Rear Feed Form Tear-Off Off

appears in the third column:

Rear Feed Form Tear-Off 1 Sec

Manual Forms Tear Off

If you don’t wish to engage the Forms Tear-Off feature, you can advance

• rear-feed continuous forms loaded on the built-in tractor

• bottom-feed continuous forms loaded on the optional push tractor

up to the tear off position manually by pressing

TEAR (5).

Paper Park

Important!

Never park labels!

Paper park allows you to switch to single-sheet printing without removing continuous feed paper from the printer.

When you wish to print single sheets, simply press retract the continuous form paper from the paper path, then lift the sheet guide, load the sheet and send the print job.

PARK (6) to

5 Press SHIFT (2) + SEL (1) to exit Menu Mode and save the

setting.

18 Microline 490/491 User’s Guide

Changing Paper Paths

Continuous Forms toÿSingle Sheets

1 Tear off any printed pages, then press PARK. 2 Raise the sheet guide (1) to the single-sheet feed position.

3 Pivot the wire feed guide into the sheet guide.

4 Move the paper lever (1) to the middle position marked

“TOP.”

5 Adjust the paper guides (1) for the size paper you are using,

then place a sheet of paper in the sheet guide.

Using Your Printer 19

Single Sheets toÿContinuous Forms

1 Press FF/LOAD to remove the single-sheet paper. 2 Lower the sheet guide into the continuous-forms position.

3 Swing the wire feed guide over onto the pull-up roller.

4 Move the paper lever to the appropriate position.

• Rear feed:

• Bottom feed:

5 If necessary, load continuous-form paper. 6 Press

FF/LOAD.

20 Microline 490/491 User’s Guide

Printhead Gap

The printhead gap is the distance between the printhead and the platen.

CAUTION!

Make sure the printer is turned off before you open the access cover.

To adjust the gap, open the access cover and move the blue lever (1) to the recommended setting from the table.

Setting Media

1 Regular paper

2 2-part form (with carbon)

3 3-part form (with carbon)

4 4-part form (with carbon)

5 Envelopes or extra thick paper

Note: When the head gap is set to 2, 3, 4 or 5, the printer

automatically slows down for better print quality with multipart forms.

Using Your Printer 21

Print Quality

Press PRINT QUALITY (1) to select:

Important!

Front panel settings for print quality and character pitch are normally overridden by software commands.

LQ: Letter Quality

[LQ light on]

• Highest quality, slowest speed

• Choice of 7 typefaces

Utility

[UTILITY light on]

• Medium quality, medium speed

• Gothic typeface only

HSD: High Speed Draft

[LQ and UTILITY lights both on]

• Lowest quality, highest speed

• Gothic typeface only

22 Microline 490/491 User’s Guide

Typefaces: LQ Mode

Important!

Front panel settings for print quality and typeface are normally overridden by software commands.

To select the typeface you wish to use, press PRINT QUALITY (1) until the appropriate front panel lights are on:

Typeface Lights on

Courier LQ and COURIER Gothic LQ and GOTHIC Orator LQ and ORATOR Prestige LQ and PRESTIGE Roman LQ, COURIER, and GOTHIC Swiss LQ, PRESTIGE and ORATOR Swiss Bold LQ, COURIER and PRESTIGE

Using Your Printer 23

Character Pitch

Important!

Front panel settings for character pitch are normally overridden by software commands.

Character pitch determines how many characters will print on each line. You can choose a specific fixed width for each character of from 10 to 20 characters per inch (CPI). The higher cpi settings are often used for spreadsheets.

In LQ mode, you can select proportional (PROP) which sets character widths based on the character itself: e.g., the letter i is assigned a narrower width than the letter m. This provides a more polished, typeset appearance.

Set the character pitch by pressing (1) until the LED beside the desired setting glows.

CHARACTER PITCH/RESET

24 Microline 490/491 User’s Guide

Printer Reset

Clearing some error conditions requires that you reset (reinitialize) the printer. To do this:

1 Press and release

The

SEL

light goes out.

2 Press and hold

PITCH.

Important!

Pressing

SHIFT

affect any menu settings and does not reset the printer to the factory defaults. For information on resetting the printer to the factory defaults, see “Resetting the Menu to the Factory Defaults” later in this chapter.

SEL (1) to take the printer off-line.

SHIFT (2), then press RESET/CHARACTER

RESET

reinitializes the printer, but does not

Emulations

• Epson® LQ — factory setting

•IBM

Changing Emulations

1 Make sure paper is loaded. 2 Press and hold 3 Press

4 Press TEAR (4) repeatedly until the emulation you wish to

5 Press and hold

Proprinter

AGM

SHIFT (2), then press SEL (1).

LF (3).

The following line prints:

Printer Control Emulation Mode EPSON LQ

select prints in the right-hand column.

SHIFT (2), then press SEL (1) to save your

setting and exit the Menu Mode.

Using Your Printer 25

Chapter 4: Menu Mode

Note: Please print the current Menu Mode settings before you

reset or change them. This is the only way to have a record of the settings.

In Menu Mode, you use the front panel keys to change the defaults for the printer parameters. The changes you make in the Menu Mode are automatically saved when you exit the Menu Mode and are retained, even when you turn the printer off.

Menu Mode Keys

GROUP Key

Prints the next Group in the Menu. With the

ITEM Key

Prints the next Item in the Group. With the

SET Key

Prints the next setting for an Item. With the

PRINT Key

Prints a copy of all the Menu settings. With the

Group selected.

MENU Light

Glows when the printer is in the Menu Mode.

SHIFT key, prints the previous Group.

SHIFT key, prints the previous Item in the Group.

SHIFT key, prints the previous setting for an Item.

SHIFT key, prints the current settings for the

Entering and Exiting Menu Mode

To enter or exit the Menu Mode, hold SHIFT while pressing

SEL.

Resetting the Menu to the Factory Defaults

Note: Please print the current Menu Mode settings before you

reset or change them. This is the only way to have a record of the settings.

To reset the Menu to the standard settings (factory defaults):

1 Turn the printer off. 2 Press

SEL + LF while turning the printer on.

Printing the Menu Settings

Printing the Current Menu Settings

1 Make sure paper is loaded in the printer. 2 Press and hold

Mode.

3 Press

Printing All Menu Settings

PRINT (PARK key).

To print out a listing of the settings for all menu items, regardless of the emulation selected or the accessories installed:

1 Make sure paper is loaded in the printer. 2 Press and hold

Mode.

3 Press and hold

SHIFT, then press SEL to enter the Menu

SHIFT, then press PRINT QUALITY.

Menu Mode 27

Changing the Menu Settings

Note: Please print the current Menu Mode settings before you

reset or change them. This is the only way to have a record of the settings.

1 Press and hold

SHIFT, then press SEL to enter the Menu

Mode.

2 Use the

a Press

GROUP, ITEM and SET keys to make your changes:

GROUP until the Group you wish to change appears

in the first column.

b Press

ITEM until the Item you wish to change appears in

the second column.

c Press

SET until the setting you want appears in the third

column.

3 Press and hold

SHIFT, then press SEL to exit the Menu Mode

and save your settings.

Important!

If you turn off the printer without first exiting the Menu Mode, the changes you have made will be lost.

28 Microline 490/491 User’s Guide

Menu Settings Table

For a complete explanation of each menu item, see “Explanations of Menu Items” later in this chapter. The table below shows the items which may appear in the menu. Settings which are engaged at the factory (defaults) are set in bold

italic. Some groups or entries will only appear when a specific emulation is engaged, as noted.

Group Item Settings (Defaults are set in bold italic)

Printer Control Emulation Mode EPSON LQ, IBM PPR, IBM AGM Font Print Mode LQ Courier, LQ Roman, LQ Swiss, LQ Swiss Bold, LQ Orator, LQ Gothic,

LQ Prestige, Utility, HSD

Pitch 10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi Proportional Spacing No, Yes Style Normal, Italics Size Single, Double

Symbol Sets Character Set Set I, Set II

Language Set American, French, German, British, Danish I, Swedish, Italian, Spanish I,

Japanese, Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, Publisher

Zero Character Slashed, Unslashed Code Page USA, Canada French, Multilingual, Portugal, Norway, BRASCII, Abicomp,

Multilingual 858, ISO 8859-15

Menu Mode 29

Menu Settings Table (Continued)

Group Item Settings (Defaults are set in bold italic)

Rear Feed Line Spacing 6 LPI, 8 LPI

Form Tear-Off Off, 500 ms, 1 sec, 2 sec Skip Over Perforation No, Yes Page Width (wide model) 13.6", 8" Page Length 11", 11-2/3", 12", 14", 17", 5", 3", 3.25", 3.5", 4", 5.5", 6", 7", 8", 8.5"

Bottom Feed Line Spacing 6 LPI, 8 LPI

Form Tear-Off Off, 500 ms, 1 sec, 2 sec Skip Over Perforation No, Yes Page Width (wide model) 13.6", 8" Page Length 11", 11-2/3", 12", 14", 17", 5", 3", 3.25", 3.5", 4", 5.5", 6", 7", 8", 8.5"

30 Microline 490/491 User’s Guide

Menu Settings Table (Continued)

Group Item Settings (Defaults are set in bold italic)

Top Feed Line Spacing 6 LPI, 8 LPI

Form Tear-Off* Off, 500 ms, 1 sec, 2 sec Bottom Margin Valid, Invalid Page Width (wide model) 8", 13.6" Page Length 11", 11-2/3", 12", 14", 17", 5", 3", 3.25", 3.5", 4", 5.5", 6", 7", 8", 8.5" Wait Time 500 ms, 1 sec, 2 sec Page Length Control by MENU Setting, by Actual Page Length

Set-Up Graphics Bi-directional, Uni-directional

Receive Buffer Size 1 Line, 32K, 64K, 128K Paper Out Override No, Yes Print Registration 1 0, range to 0.25 mmm to the right or left, set in 0.05 mm increments

• press SEL to shift registration to the left;

• press SHIFT + SEL to shift registration to the right.

Print Registration 2 0, range to 0.25 mmm to the right or left, set in 0.05 mm increments

• press SEL to shift registration to the left;

• press SHIFT + SEL to shift registration to the right.

* Appears only when the optional Roll Paper Stand is installed.

Menu Mode 31

Menu Settings Table (Continued)

Group Item Settings (Defaults are set in bold italic)

Setup (cont.) Operator Panel Function Full Operation, Limited Operation

Reset Inhibit No, Yes Print Suppress Effective No, Yes Auto LF No, Yes Auto CR* No, Yes CSF Bin Select† Bin 1, Bin 2 SI Select Pitch (10 cpi)* 15 cpi, 17.1 cpi SI Select Pitch (12 cpi)* 12 cpi, 20 cpi Time Out Print Valid, Invalid Auto Select No, Yes Graphics Speed Low, High Centering Position DEFAULT, MODE 1, MODE 2 CSF Type Wide, Narrow Power Saving Enable, Disable Power Save Time 5 min, 10 min, 15 min, 30 min, 60 min

* Appears only when the IBM emulation is selected. † Appears only when optional Cut Sheet Feeder is installed.

32 Microline 490/491 User’s Guide

Menu Settings Table (Continued)

Group Item Settings (Defaults are set in bold italic)

Parallel I/F I-Prime Buffer Print, Buffer Clear, Invalid

Pin 18 +5V, Open Auto Feed XT* Invalid, Valid Bi-Direction Enable, Disable

Serial IF† Parity None, Odd, Even

Serial Data 7/8 Bits 8 Bits, 7 Bits Protocol Ready/Busy, X/On / X/Off Diagnostic Test No, Yes Busy Line SSD-, SSD+, DTR, RTS Baud Rate 19200 bps, 9600 bps, 4800 bps, 2400 bps, 1200 bps, 600 bps, 300 bps DSR Signal Valid, Invalid DTR Signal Ready on Power Up, Ready on Select Busy Time 200 ms, 1 sec.

* Appears only when the Epson LQ emulation is selected. † Appears only when the optional Serial Interface is installed.

Menu Mode 33

Menu Settings Table (Continued)

Group Item Settings (Defaults are set in bold italic)

CSF Bin 1* Line Spacing 6 LPI, 8 LPI

Bottom Margin Valid, Invalid Page Width (Wide model) 8", 13.6" Page Length 11", 11-2/3", 12", 14", 17", 5", 3.5", 4", 5.5", 6", 7", 8", 8.5"

CSF Bin 2* Line Spacing 6 LPI, 8 LPI

Bottom Margin Valid, Invalid Page Length 11", 11-2/3", 12", 14", 17", 5", 3.5", 4", 5.5", 6", 7", 8", 8.5"

* Appears only when the optional Cut Sheet Feeder is installed.

34 Microline 490/491 User’s Guide

Explanations of Menu Items

These explanations are in alphabetical sequence to make it easier to look them up. Some items only appear when optional accessories are installed; others appear in several groups in the menu.

Auto CR, Default =No

IBM Only. If you want the printer to automatically add a carriage return when a Line Feed is received at the end of a line, change the setting to Yes.

Auto LF, Default = No

If your printout is consistently double spaced, select No; if it overprints, select Yes.

Auto Feed XT, Default = Invalid

Epson Only. In the Epson emulation, the XT signal on pin 14 of the parallel interface can control automatic line feed. Some interface cables are wired in such a way that automatic line feed is always in effect: this item eliminates this potential problem. If your system uses pin 14 of the parallel interface to control automatic line feed, change the setting to Valid.

Auto Select, Default = No

Determines whether or not your printer will automatically be selected after you load in paper. With the factory default engaged, the printer will be deselected so that you can set the Top of Form. If you always use the same Top of Form position, change the setting to Yes.

Bi-direction, Default = Enable

Change this setting if you wish to disable bidirectional transmission (PnP) in Nibble mode.

Bottom Margin, Default = Valid

Change to Invalid if you want the printer to ignore the bottom margin setting.

CAUTION!!

Setting the Bottom Margin to Invalid can cause loss of data and damage the printhead by allowing printing without paper.

Menu Mode 35

Busy Line, Default = SSD-

Appears only when the optional Serial Interface is installed. If Ready/Busy protocol (factory default) is selected, you can choose which line your system monitors for a busy signal:

• SSD -9V, select SSD-

• SSD +9V, select SSD+

• DTR -9V, select DTR

• RTS -9V, select RTS

Busy Time, Default = 200 ms

Appears only when the optional Serial Interface is installed. Sets the length of the busy signal when the Ready/Busy protocol (factory default) is engaged,

Centering Position, Default = DEFAULT

Used to limit printhead travel when printing narrow columns.

• Select Mode 1 for the narrow carriage printer.

• Select Mode 1 or Mode 2 for the wide carriage printer.

Character Set, Default = IBM Set I

Use this to switch character sets to IBM Set II

Code Page, Default = USA

Choose the Code Page character set you wish to use: USA, Canada French, Multilingual, Portugal, Norway, BRASCII, Abicomp, Multilingual 858, or ISO 8859-15.

CSF Bin Select, Default = Bin 1

Appears only when the optional Dual-Bin Cut Sheet Feeder is installed. Use this to switch to Bin 2 as the default.

CSF Type, Default = Wide

To avoid paper jams, change this setting to Narrow if you are using the optional Cut Sheet Feeder on the wide model ML491 printer.

Diagnostic Test, Default = No

Appears only when the optional Serial Interface is installed. Select yes to perform a diagnostic test of the serial interface.

DSR Signal, Default = Valid

Appears only when the optional Serial Interface is installed. Used with the Ready/Busy protocol (factory default) to select the way your system handles the DSR signal.

36 Microline 490/491 User’s Guide

DTR Signal, Default = Ready on Power Up

Appears only when the optional Serial Interface is installed. Change to Ready on Select if the DTR signal is required when the printer is selected (leave as Ready on Power Up if the DTR signal is required when the printer is turned on).

Emulation Mode, Default = Epson LQ

Selects the printer command set (emulation) you want to engage.

Form Tear-Off, Default = Off

Choose 500 ms, 1 sec, or 2 sec to turn the Form Tear-Off feature on and to set the time interval for the printer to wait before advancing the paper.

Graphics, Default = Bi-directional

Change to uni-directional graphics for better registration, but slower printing. With this set for bi-directional, you can optimize the registration using the Print Registration setting in the Menu.

Graphics Speed, Default = Low

Change to High for faster printing when optimum print quality is not an issue.

I-Prime, Default = Buffer Print

Determines what the printer will do when it receives the I-Prime signal from the software.

• Buffer Print: prints out the buffer contents before resetting.

• Buffer Clear: dumps the buffer contents immediately.

• Invalid: causes the printer to ignore the I-Prime command. Select this setting if you wish to enter settings through the printer’s control panel which will not be automatically overridden by the software’s settings when the I-Prime signal is sent.

Language Set, Default = American

Replaces certain standard symbols with special characters used in foreign languages.

Line Spacing, Default = 6 lpi

Change to 8 lines per inch (lpi) to get more lines on a page.

Menu Mode 37

Operator Panel Function, Default = Full Operation

Change to Limited Operation to deactivate the PRINT QUALITY and CHARACTER PITCH buttons, so that these features can only be controlled through your software. This prevents these from being changed from the control panel when several people are using the printer.

Important!

This feature also prevents access to the Menu. To access the Menu in these circumstances, turn the printer off, then hold down the

Page Length, Default = 11"

SEL

key while turning on the printer.

Selects the length of the paper you are using. This enables the printer to keep track of the initial printing position (TOF) on each page.

Page Width, Default = 8"

Wide carriage model only. Change to 13.6" to print on wide paper.

Paper Out Override, Default = No

Senses when less than 1" (25 mm) of paper remains and stops printing. Change to Yes to override the sensor and print closer to the bottom of the page.

Caution!!

Engaging Paper Out Override can cause loss of data and damage the printhead by allowing printing without paper.

Parity, Default = None

Appears only when the optional Serial Interface is installed. Selects the type of parity your system uses: None, Odd or Even.

Page Length Control, Default = by Menu Setting

Change the setting to “by Actual Page Length” if you wish to print on single-sheets longer than 17 inches. When “by Actual Page Length” is selected, the menu setting for Top Feed Page Length is ignored.

38 Microline 490/491 User’s Guide

Pin 18, Default = +5V

Sets the signal on pin 18 to +5 volts or open.

Pitch, Default = 10 cpi

Choose the character width, in characters per inch (cpi).

Power Save Time, Default = 5 min

Sets the interval the printer waits for more data before it goes into the power save mode. Power Saving must be set to enable (the factory default) for this to be effective.

Power Saving, Default = Enable

Change to Disable if you wish to prevent the printer from entering the Power Save mode after the selected interval.

Proportional Spacing, Default = No

Change the setting to Yes to engage proportional spacing of characters.

Protocol, Default = Ready/Busy

Appears only if the optional Serial Interface is installed. Change to X-ON / X-Off if that is the type of protocol your system uses.

Print Mode, Default = LQ Courier

Choose the quality and typeface of printing.

Print Registration, Default = 0

Change the setting as required to obtain the best registration for bi-directional printing.

Print Suppress Effective, Default = Yes

If your system uses the DC1 and DC3 codes for something other than the print suppress mode, change the setting to No.

Receive Buffer Size, Default = 64K

Selects the amount of memory devoted to holding received data. Choosing 1 Line will tie up your computer while printing, but if you abort the print job, the printer will stop much sooner.

Reset Inhibit, Default = No

Select Yes if you wish the printer to ignore the reset command sent by software. This prevents your software from changing the settings you make through the front panel controls or through printer commands.

Note: This will also prevent your software from clearing out

existing settings when you finish printing one document and switch to another.

Menu Mode 39

Serial Data 7/8 Bits, Default = 8 Bits

Appears only if the optional Serial Interface is installed. Change to 7 Bits if you systems uses a 7-bit data format.

Style, Default = Normal

Change to italics if you want the printed characters to be slanted.

SI Select Pitch 10 cpi, Default = 17.1 cpi

IBM emulation only. Sets the pitch to be engaged when the printer control panel is set for 10 cpi and the SI command is received.

SI Select Pitch 12 cpi, Default = 20 cpi

IBM emulation only. Sets the pitch to be engaged when the printer control panel is set for 12 cpi and the SI command is received.

Size, Default = Single

Change to Double for double width and height printing.

Skip Over Perforation, Default = No

Change to Yes if you want the printer to go to the next page when it comes within 1" (25 mm) of the bottom of the page. Keep it set to No if your software has its own page formatting controls.

Time Out Print, Default = Valid

If your software spends a long time processing between portions of data it feeds to the printer, change the setting to Invalid to keep your printer from dumping the received data while it is waiting for more.

Wait Time, Default = 1 sec

Sets the amount of time the printer will wait for more data before moving to the form tear-off position.

Zero Character, Default = Slashed

If you do not want the printer to use a slash to distinguish the number zero from the capital letter O, change the setting to Unslashed.

40 Microline 490/491 User’s Guide

Chapter 5: Maintenance

Replacing the Ribbon Cartridge

Important!

Make sure you have the correct replacement ribbon for the your printer. The wrong ribbon will not print when installed in your printer.

Ribbon Cartridge Handling

• Leave unused ribbon cartridges in their packages until needed.

• Careful; the ribbon ink may cause permanent stains.

• Ribbon ink on skin or clothing can usually be removed with soap and water.

1 Make sure the printer is turned OFF. 2 Open the access cover and center the printhead.

CAUTION!

The printhead may be

HOT!

3 Swing the used ribbon cartridge up off the printhead, lift it

out, and discard it.

4 Unpack the new ribbon cartridge and install it.

Important!

Do not remove the ribbon shield (1) from the ribbon!

5 Turn the take-up knob in the direction of the arrow to take

up any ribbon slack.

6 Close the access cover and turn the printer back on.

CAUTION!

If ribbon should contact the eyes:

Flush eyes with large quantities of water for 15 minutes, keeping eyelids open with fingers. Seek medical attention.

If ribbon should contact the skin

Wash thoroughly with soap and water.

For more information

See the Material Safety Data Sheet in your Warranty, Regulatory, and Safety Information booklet.

42 Microline 490/491 User’s Guide

Loading Paper

Rear Feed

Note: If you have any paper in the paper path, remove it

before installing rear feed paper.

Lock Lever Upper Tractor Cover Pins

Loading Rear Feed Paper from the Back of the Printer

Note: These instructions assume you have ready access to the

back of the printer. If you do not, skip down to “Loading Rear Feed Paper from the Front of the Printer.”

1 Make sure the paper lever is forward (position marked

“REAR”).

2 Open the access cover (1).

Maintenance 43

3 Grasp the sheet guide. Lift it slightly, then slide it back. 4 Pivot the sheet guide forward and gently rest it against the

roller assembly.

Careful!

If you push the sheet guide too hard against the roller assembly, it may dislodge it. If it does, be sure to reseat the roller assembly before continuing.

44 Microline 490/491 User’s Guide

5 From the back of the printer, locate the tractors (1).

6 Open the lock levers (1) and move the right tractor (as

viewed from the back of the printer) to the reference mark (2) matching the width of the paper you are loading. Then close the lock lever on the right tractor:

ML491

ML490

Note: The movement of the right tractor is limited to ensure

that the paper covers the paper sensor.

7 Open the tractor covers.

Maintenance 45

8 Place continuous forms paper on the first two pins of either

tractor.

Important!

You must keep the number of paper holes engaged on either pin the same. If you don’t the paper will skew and jam.

9 Close the right tractor cover.

10 Adjust the left tractor until the holes in the paper are

centered on the pins then lock the lever and close the left tractor cover.

Note: If the paper is too loose or too tight it can cause jams.

46 Microline 490/491 User’s Guide

11 Lower the sheet guide and slide it toward the front of the

printer until the marks align.

12 Place the wire guide (“1” in the illustration for the step

above) in the sheet guide on the pull-up roller assembly.

13 Press FF/LOAD.

Note: The factory default setting for the Top of Form (where

the printing should begin) is 1" down from the top of the page. To change the setting, see “Top of Form (TOF)” in Chapter 3.

Maintenance 47

Loading Rear Feed Paper from the Front of the Printer

Note: These instructions assume you do not have ready access

to the back of the printer. If you do, go back to “Loading Rear Feed Paper from the Rear of the Printer” earlier in this chapter.

Lock Lever Upper Tractor Cover Pins

1 Make sure the paper lever is forward (position marked

“REAR”).

2 Open the access cover (1).

3 Grasp the tabs and lift off the sheet guide.

4 Pull up on the lock levers to release them.

48 Microline 490/491 User’s Guide

Note: The movement of the left tractor (as viewed from the

front of the printer) is restricted to ensure that the

paper covers the paper out sensor.

7 Open the tractor covers and place continuous forms paper on

the first two pins of either tractor, then close the left tractor cover.

5 You will find reference marks (1 in illustration below) on the

printer for the two most common paper sizes:

ML490:

ML491:

6 Move the left tractor to the position to match your paper size

and push back on the lever to lock it in place, then move the right tractor to fit the width of the paper.

Important!

You must keep the number of paper holes engaged on either pin the same. If you don’t the paper will jam.

Maintenance 49

8 Adjust the position of the right tractor to center the holes in

the paper on the pins. Then, close its tractor cover and push back the lock lever. Do not stretch the paper.

Note: If the paper is too loose or too tight it can cause jams.

9 Reinstall the sheet guide.

50 Microline 490/491 User’s Guide

10Place the wire guide (1) in the sheet guide on the pull-up

roller assembly.

11 Press FF/LOAD.

Note: The factory default setting for the Top of Form (where

the printing should begin) is 1" down from the top of the page. To change the setting, see “Top of Form (TOF)” in Chapter 3.

Maintenance 51

Top Feed (Single Sheets)

Note: If you have continuous form paper in the path, press

PARK

to remove it before loading single sheets.

3 Open the acoustic cover (1) and raise the sheet guide to the

single-sheet position. Pivot the wire feed guide (2) up into the sheet guide.

1 Make sure the printer is on and deselected (

SEL light off).

2 Place the paper lever in the center position (marked “TOP”).

52 Microline 490/491 User’s Guide

4 Adjust the paper feed guides (1) for the width of the paper,

then place a sheet of paper in the separator. The paper will feed into the printer.

Important!

If the paper does not feed in, remove it. Check the paper lever position. Make sure the hold the

SHIFT

key and press the

ALARM

light is on: if it is flashing,

CHARACTER PITCH/RESET

key. Reload the sheet of paper.

Note: The factory default setting for the Top of Form (where

the printing should begin) is 1" down from the top of the page. To change the setting, see “Top of Form (TOF)” in Chapter 3.

Maintenance 53

Clearing Paper Jams

Rear-Feed Paper Jams

1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the

printer.

CAUTION!

Make sure the printer is turned off before you open the access cover.

3 Open the access cover (1) and remove the pull-up roller

assembly (2). Remove any torn pieces of paper.

4 Lift the sheet guide (1) and reload paper. Make sure you

lock the tractor covers.

5 Lower the sheet guide, then install the pull-up roller

assembly and close the access cover.

54 Microline 490/491 User’s Guide

6 Turn on the printer and press FF/LOAD.

Rear-Feed, Repeating Paper Jams

If the paper keeps jamming, you may have:

• defective paper

• misaligned paper

• bits of paper stuck in the paper path

Defective Paper

Replace the paper with a fresh stack.

Misaligned Paper

1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the

printer.

3 Tear off a couple of sheets of paper, leaving a new, clean,

square-cut edge.

4 Reload the paper and turn the printer back on.

Bits of Paper Stuck in the Paper Path

1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the

printer.

CAUTION!

Make sure the printer is turned off before you open the access cover.

3 Open the access cover (1) and remove the pull up roller

assembly (2). Then grasp the tabs (3) on the sheet guide (4) and lift it off the printer.

Maintenance 55

4 Remove any torn pieces of paper. 5 Fold some continuous-form paper over three times to make a

page four sheets thick. Then, load it on the tractors and close and lock the covers.

6 Use the platen knob to draw the quadruple-thick page

around the platen. This brings out jammed pieces of paper.

7 Remove the paper pieces. Then, use the platen knob to back

the paper out.

8 Load regular paper, close and lock the tractor covers.

9 Install the sheet guide, then install the pull-up roller

assembly and close the access cover.

10 Turn the printer on and press FF/LOAD.

56 Microline 490/491 User’s Guide

Single-Sheet Paper Jams

1 Turn off the printer. 2 Use the platen knob to back the paper out.

3 Open the access cover (1) and remove the pull-up roller

assembly (2).

4 Remove any torn pieces from around the carriage. 5 Reinstall the pull-up roller assembly and close the access

cover.

Maintenance 57

Cleaning the Housing

You should clean the printer housing every six months (or after about 300 hours of operation).

CAUTION!

Never use strong solvents or strong detergents on the cabinet—they could damage the housing.

1 Turn off the printer. 2 Use the platen knob to back the paper out of the printer.

CAUTION!

Make sure the printer is turned off before you open the access cover.

3 Open the access cover (1) and remove the pull-up roller

assembly (2).

4 Use a clean, dry cloth to dust around the carriage shaft and

platen. Remove any loose bits of paper.

5 Reinstall the pull-up roller assembly and close the access

cover.

58 Microline 490/491 User’s Guide

Chapter 6: Troubleshooting

General Information

Here are some general things to check before proceeding with detailed troubleshooting.

• Is the printer plugged in and turned on?

• Are the connections (power and interface) secure?

• Is the product being operated under the proper ambient conditions?

• Does the paper being used meet the specifications for this product?

• Is the paper properly installed?

• Is the ribbon properly installed?

• Is an Oki ribbon being used?

• Is the printhead gap correctly set?

• Are the correct printer drivers being used for the printer?

Note: Settings in your software application will normally

override any settings in your printer driver.

Printer driver settings normally override settings from the printer menu or printer front panel.

Problems / Solutions

Problem

My word processor files do not print the way I have the menu and front panel set.

The I-Prime signal will automatically override any front panel settings you have made. To eliminate this problem, enter the Menu Mode, go to the Parallel Interface group and change the setting for I Prime to Invalid.

For more information on changing menu settings, see “Changing the Menu Settings” in Chapter 4.

Solution

Remember:

• Settings in your software application can override settings in your printer driver.

• Your printer driver settings can override any settings from the printer menu or printer front panel.

Before sending a file to the printer, many word processors send either an “initialization string” or an I-Prime signal to the printer.

The initialization string contains codes that override the panel and menu settings. To change your printer to ignore the reset code, enter the Menu Mode, go to the Set-Up group and change the setting for Reset Inhibit to Yes.

60 Microline 490/491 User’s Guide

Problem

Nothing happens when I turn on the printer.

Solution

Check the power cord connection to the outlet and to the printer. If you are using a power strip, make sure it is turned on, and that the fuse hasn’t blown or that the circuit breaker hasn’t tripped.

Problem

The printer does not print when the computer sends data.

Solutions

1 Is the

SEL light on? If not, press the SEL key.

2 Check that the interface cable is securely connected to both

the printer and the computer.

3 If you have the optional serial interface board installed,

check to be sure that it is firmly seated in the printer.

I'm getting strange symbols, incorrect fonts, etc., when I try to print a document.

Solutions

1 Check to be sure that the printer driver you have selected in

your software matches the printer emulation.

• Press

SHIFT and SEL keys, then press GROUP key.

• This will print a line showing the emulation you have selected.

2 If you have embedded any printer commands in your

software, check to be sure that you entered them correctly.

Troubleshooting 61

Problem

Ink smears on the paper when I print narrow columns.

Solution

This may be caused by excessive printhead travel from the centering position. Enter the Menu and set the Centering Position to MODE 1. See “Using Your Printer, Menu Mode.”

For the wide-carriage printer, if MODE 1 doesn't work, try setting the Centering Position to MODE 2.

I've installed a new ribbon and the printing is smeared and streaked.

Solution

The ribbon shield (1) is either loose or missing.

Remove the ribbon cartridge and check the ribbon shield.

• If it is loose, secure it.

• If it is missing, find it and install it.

62 Microline 490/491 User’s Guide

Problem

There are dots missing in my printouts.

Solution

The head gap may not be set correctly. Try moving the headgap lever to a lower setting. If that doesn’t help, the printhead may be damaged; call for service.

Problem

The ALARM light is flashing.

Solution

Try turning the printer off and then back on again. If the light still blinks, call for service.

The ALARM light is on and the Character Pitch 10 light is flashing.

Solution

This indicates that the paper lever is set at the wrong position for the paper you are trying to use. Move it to the proper setting.

Problem

The ALARM light is on and the Character Pitch 15 light is flashing.

Solution

This indicates a paper jam. Press the

SEL key and correct the

paper jam situation. See “Clearing Paper Jams,” in Chapter 4.

Troubleshooting 63

Problem

The printer needs paper. The ALARM is not on. I can’t load paper.

Solution

1 Press and release the 2 Press and hold the

CHARACTER PITCH key.

3 The

ALARM light comes on and you can now load paper.

SEL key.

SHIFT key and press the RESET /

Problem

Continuous-form paper sticks to the sheet guide.

Solution

In cold dry weather, static charges can build up and make the paper cling to the sheet guide. Try moving the paper guides together so that the paper rests on the guides rather than on the separator.

The Print Quality and Character Pitch keys on the front panel don't work.

Solution

The Operator Panel Function in the printer menu can be used to disable these buttons (Limited Function). If the printer is part of a customized system or if it is used by a number of people, the system manager may have used this option to make sure the printer is always set properly.

Check with your system manager before changing any menu settings.

64 Microline 490/491 User’s Guide

Appendix A: Parts & Accessories

Purchasing Parts & Accessories

Before you purchase, know your printer model number (see the front of the unit) and have the correct part number and description of the item. Item descriptions and part numbers are provided in this section.

• Consult the dealer where your purchased your printer.

• Locate an Authorized Oki Data Reseller by visiting one of our web sites

http://my.okidata.com (allows you to register your

product and personalize your own support needs)

http://www.okidata.com (provides general information)

• In the United States, purchase directly from Oki Data

- Via the Internet

http://my.okidata.com http://www.okidata.com

- Via telephone Order toll-free by phone at 1-800-654-3282

(1-800-OKI-DATA) using VISA AmEx®.

• In Canada, call 888-309-4570.

, MasterCard®, or

Replacement Parts

Item Part Number

Both Models

Ribbon Cartridge (

) ------------------------------- 42377801 Platen Knob ( Power Cord (

Model ML490

Printhead ( Access Cover ( Sheet Guide ( Pull-Up Roller Assembly (

Model ML491

Printhead ( Access Cover ( Sheet Guide ( Pull-Up Roller Assembly (

) ------------------------------------- 51902220

) ------------------------------------- 56631801

) ---------------------------------------- 42124201

) ----------------------------------- 42115401

) ------------------------------------- 51009509

) ---------------------------------------- 42124201

) ----------------------------------- 42115301

) ------------------------------------- 51009410

) --------------------- 42044701

) --------------------- 42045701

66 Microline 490/491 User’s Guide

Accessories

Option Part Number

Model ML490

Pull Tractor, Top-Mount ( Push Tractor, Bottom-Mount ( Roll Paper Stand ( ) ------------------------------- 70023301

Model ML491

Pull Tractor, Top-Mount ( ) ----------------------- 70030601 Push Tractor, Bottom-Mount (

Both Models

Cut Sheet Feeder ( Serial Interface ( OkiLAN 6120i 10/100 Base-T, Ethernet

Internal Print Server (not shown) --------------- 70046501

OkiLAN 6020e 10/100 Base-T Ethernet

External Print Server (not shown) --------------- 70036001

OkiLAN

External Print Server (not shown) --------------- 70034401

6010 10 Base-T Ethernet

) --------------------------------- 70012801

)----------------------- 70030501

) ----------------- 70030701

) ----------------- 70030801

) ------------------------------- 70030101

Accessories 67

Appendix B: Printer Control Codes

This section lists the most commonly used printer control codes.

You will find a comprehensive listing of the control codes (English only), on your Printer CD.

To access it: 1 Place the CD in your CD-ROM drive and wait for it to

AutoPlay.

2 Select your printer model, then click Continue. 3 Click Documentation and follow the on-screen prompts to

view the file.

Epson LQ Commands

Epson Command ASCII Decimal

Backspace BS 8 Cancel CAN 24 Carriage Return,

Execute CR 13

Character Pitch

Select 10 cpi ESC P 27 80 Select 12 cpi ESC M 27 77 Select 15 cpi ESC g 27 103 Begin 10 cpi ESC SI, or SI 27 15, or 15

Cancel Condensed

Print DC2 18

Epson LQ Commands (Continued)

Epson Command ASCII Decimal

Character Style

Normal ESC q 0 27 113 48 Outline ESC q 1 27 113 49 Shadow ESC q 2 27 113 50

Outline with Shadow ESC q 3 27 113 51 Delete DEL 127 Double Height On ESC w 1 27 119 49

or ESC US 0 or 27 31 48

Double Height Off ESC w 0 27 119 48

or ESC US 1 or 27 31 49

Double Width On ESC W 1 27 87 49 Double Width Off ESC W 0 27 87 48 Double Width

for One Line SO 14

or ESC SO or 27 14

Emphasized Print On ESC E 27 69 Emphasized Print Off ESC F 27 70

Enhanced Print On ESC G 27 71 Enhanced Print Off ESC H 27 72

Italic Printing On ESC 4 27 52 Italic Printing Off ESC 5 27 53

Form Feed FF 12 Form Length

n Inches (n = 1 to 22) ESC C NUL n 27 67 0 n

n Lines (n = 1 to 127) ESC C n 27 67 n Horizontal Tab HT 9 Initialize Printer ESC @ 27 64 Justification

Left ESC a 0 27 97 48

Center ESC a 1 27 97 49

Right ESC a 2 27 97 50

Full ESC a 3 27 97 51

Control Codes 69

Epson LQ Commands (Continued)

Epson Command ASCII Decimal

Line Feed, Execute

w/ Carriage Return LF 10 n/180" (n = 0 to 255) ESC J n 27 74 n n/360" (n = 0 to 255) ESC ] n 27 93 n Reverse, n/180"

(n = 0 to 255) ESC j n 27 106 n

Line Spacing, Set

n/360" (n = 0 to 255) ESC + n 27 43 n

or ESC [ n or 27 91 n

n/180" (n = 0 to 255) ESC 3 n 27 51 n n/60" (n = 0 to 127) ESC A n 27 65 n 1/6" ESC 2 27 50 1/8" ESC 0 27 48

Margins

Set Left Margin

(n = 0 to 255) ESC 1 n 27 108 n

Set Right Margin

(n = 0 to 255) ESC Q n 27 81 n

Paper Out Sensor

Disabled (Off) ESC 8 27 56

Enabled (On) ESC 9 27 57 Print Quality/Font

Select LQ ESC x 1 27 120 49

Select Utility ESC x 0 27 120 48

Select Roman (LQ only) ESC k 0 27 107 48

Select Swiss (LQ only) ESC k 1 27 107 49

Select Courier (LQ only) ESC k 2 27 107 50

Select Prestige (LQ only) ESC k 3 27 107 51

Select Orator (LQ only) ESC k 7 27 107 55

70 Microline 490/491 User’s Guide

Epson LQ Commands (Continued)

Epson Command ASCII Decimal

Print Speed

Half-Speed On ESC s 1 27 115 49 Half-Speed Off ESC s 0 27 115 48

Print Suppress Mode On DC3 19 Print Suppress Mode Off DC1 17

Proportional Spacing On ESC p 1 27 112 49 Proportional Spacing Off ESC p 0 27 112 48

Skip Over Perforation ON ESC N n 27 78 n

(n = 1 to 127)

Skip Over Perforation OFF ESC O 27 79 Software I-Prime ESC } NUL 27 125 0

Subscript On ESC S 1 27 83 49 Superscript On ESC S 0 27 83 48 Subscript/Superscript Off ESC T 27 84

Underline On ESC - 1 27 45 49 Underline Off ESC - 0 27 45 48

Uni-Directional Printing

One Line Only ESC < 27 60

On ESC U 1 27 85 49

Off ESC U 0 27 85 48 Upper Range Control Codes

Permit Printing ESC 6 27 54

Cancel Printing ESC 7 27 55 Vertical Tab, Execute VT 11

Control Codes 71

IBM Proprinter X24e / XL24e and

IBM Command ASCII Decimal

IBM X24e AGM / XL24e AGM Commands

IBM Command ASCII Decimal

Backspace BS 8 Cancel CAN 24 Carriage Return CR 13 Character Pitch, Select

10 cpi DC2 18 12 cpi ESC : 27 58

15 cpi ESC g 27 103 Condensed Print ESC SI, or SI 27 15, or 15 Character Style

Normal ESC q 0 27 113 48

Outline ESC q 1 27 113 49

Shadow ESC q 2 27 113 50

Outline with Shadow ESC q 3 27 113 51

Double Width

On ESC W 1 27 87 49 Off ESC W 0 27 87 48 for One Line SO 14

Emphasized Printing On ESC E 27 69 Emphasized Printing Off ESC F 27 70

Enhanced Printing On ESC G 27 71 Enhanced Printing Off ESC H 27 72

Form Feed FF 12 Form Length

n inches

n = 1 to 255 ESC C NUL n 27 67 0 n

n lines

n = 1 to 255 ESC C n 27 67 n

Horizontal Tab, Execute HT 9

IBM Character Set Select Set I ESC 7 27 55 Select Set II ESC 6 27 54

72 Microline 490/491 User’s Guide

IBM Commands (continued)

IBM Command ASCII Decimal

Print One Character from

IBM Set III

(n = 0 to 255) ESC ^ n 27 94 n Italic Printing On ESC % G 27 37 71

Italic Printing Off ESC % H 27 37 72 Line Feed, Execute

w/ Carriage Return LF 10

n/180" AGM only

(n = 1 to 255) ESC J n 27 74 n

n/216" PPR only

(n = 0 to 255) ESC J n 27 74 n n/360" (n = 0 to 255) ESC% 4 n 27 37 52 n Reverse ESC ] 27 93

Auto Line Feed On ESC 5 1 27 53 49 Auto Line Feed Off ESC 5 0 27 53 48

Line Spacing

Set Spacing to 1/8" ESC 0 27 48 Set Spacing to 7/72" ESC 1 27 49 Set to n/60": AGM only

(n = 1 to 255) ESC A n 27 65 n

Set to n/72": PPR only

(n = 1 to 255) ESC A n 27 65 n

Activate Spacing Set

by ESC A n ESC 2 27 50

Set to n/180": AGM only

(n= 1 to 255) ESC 3 n 27 51 n

Set to n/216": PPR only

(n= 1 to 255) ESC 3 n 27 51 n

Set to n/360" (n= 1 to 255)ESC % 8 n 27 37 56 n

Overscore On ESC _ 1 27 95 49 Overscore Off ESC _ 0 27 95 48

Control Codes 73

IBM Commands (Continued)

IBM Command ASCII Decimal

Paper Out Sensor Off ESC 8 27 56 Paper Out Sensor On ESC 9 27 57

Print Quality / Font

Select LQ Roman ESC k 0 27 107 48 Select LQ Swiss ESC k 1 27 107 49 Select LQ Courier ESC k 2 27 107 50 Select LQ Prestige ESC k 3 27 107 51 Select LQ Orator ESC k 7 27 107 55

Print Suppress Mode On

ML490 ESC Q $ 27 81 36 ML491 ESC Q # 27 81 35

Print Suppress Mode Off DC1 17 Proportional Spacing On ESC P 1 27 80 49

Proportional Spacing Off ESC P 0 27 80 48

Skip Over Perforation On

(n = 1 to 255) ESC N n 27 78 n

Skip Over Perforation Off ESC 0 27 79 Software I-Prime ESC } NUL 27 125 0 Stop Printing ESC j 27 106 Subscript On ESC S 1 27 83 49

Superscript On ESC S 0 27 83 48 Subscript/Superscript Off ESC T 27 84

Top of Form,

Set at Current Position ESC 4 27 52

Underline Printing On ESC - 1 27 45 49 Underline Printing Off ESC - 0 27 45 48

Uni-Directional Print On ESC U 1 27 85 49 Uni-Directional Print Off ESC U 0 27 85 48

Vertical Tab, Execute VT 11

74 Microline 490/491 User’s Guide

Appendix C: Specifications

Note: Specifications are subject to change without notice.

Print Method

Impact dot matrix

Printhead

24 pins, 0.20 mm (0.0079") diameter, with thermal

protection

Interfaces

Standard: Centronics parallel, IEEE-1284 compliant

USB 1.1

Optional: RS-232C Serial

Ethernet Print Servers:

6120i 10/100 Base-TX Internal 6020e 10/100 Base-T External 6010e 10 Base-T External

Receive Buffer Size

Maximum 128K

Reliability

Ribbon Life

4 million characters, on average, 10 cpi utility

Printhead Life

200 million characters average in 10 cpi draft mode at 25% duty and 35% page density

Mean Time Between Failures (MTBF)

20,000 hours at 25% duty cycle and 35% page density

Mean Time to Repair (MTTR)

15 minutes

Emulations (co-resident)

• Epson LQ

• IBM Proprinter X24e / XL24e

• IBM X24e AGM / XL24e AGM

Characters per Line (cpl)

Setting ML490 ML491

10 cpi 80 cpl 136 cpl

Print Speed

Mode Pitch Speed

High Speed Draft (HSD) 10 cpi* 420 cps† Utility 10 cpi 315 cps

12 cpi 378 cps 15 cpi 472 cps

17.1 cpi 269 cps 20 cpi 315 cps

Letter Quality (LQ) 10 cpi 105 cps

12 cpi 126 cps 15 cpi 157 cps

17.1 cpi 180 cps 20 cpi 210 cps

* Characters per inch † Characters per second

76 Microline 490/491 User’s Guide

12 cpi 96 cpl 163 cpl 15 cpi 120 cpl 204 cpl

17.1 cpi 137 cpl 233 cpl 20 cpi 160 cpl 272 cpl

Graphics Resolution

360 x 360 dpi maximum (24-dot, hex density)

Paper Thickness: Tractor Feed

Rear Feed: 0.014" (0.36 mm) maximum

Bottom Feed: 0.017" (0.44 mm) max.

Requires optional push or pull tractor.

Resident Fonts

Resident Typefaces

Print Quality Available Fonts

Letter Quality Courier, Gothic, Orator, Prestige,

Roman, Swiss, Swiss Bold

Utility Gothic

Bar Codes

• Code 39

• UPC A, UPC E

• EAN 8, EAN 13

• Interleaved 2 of 5

• Code 128

• Postnet

Mode/Font Size: Style

LQ Courier 10 & 12 cpi: Normal, Superscript, Subscript

Proportional: Normal, Superscript, Subscript 8 point: Normal Scalable: 11 to 64 points

LQ Letter 10 cpi, 12 cpi, Proportional: Normal

Gothic LQ Prestige 10 cpi, 12 cpi, Proportional: Normal LQ Orator 10 cpi, 12 cpi, Proportional: Normal LQ Roman 10 & 12 cpi: Normal, Superscript, Subscript

Proportional & 8 point: Normal Scalable: 11 to 64 points

LQ Swiss 10 & 12 cpi: Normal, Superscript, Subscript

Proportional & 8 point: Normal

Scalable: 11 to 64 points LQ Swiss Bold 10 cpi, 12 cpi, Proportional: Normal Utility Gothic 10 & 12 cpi: Normal, Superscript, Subscript HSD Gothic 10 cpi: Normal

Specifications 77

Paper Specifications: ML490

Single (Cut) Sheets

Feed: Top Only

Weight: 14 to 24 lb. US Bond (52.6 to 90 g/m

Width Range: 7.2" to 8.5" (183 to 216 mm)

Single-part, continuous forms

Feed: Rear, Bottom*

Weight: 12 to 24 lb. US Bond (45 to 90 g/m

Width Range: 3" to 10" (76 to 254 mm)

Carbonless continuous forms (orig. + 4 copies)

Feed: Rear, Bottom*

Weight: 9 to 11 lb.

Width Range: 3" to 10" (76 to 254 mm)

Interleaf continuous forms (orig. + 4 copies)

Feed: Rear, Bottom*

Weight: 10 to 12 lb. paper, 9 lb carbon

Width Range: 3 to 10" (76 to 254 mm)

Labels

Feed: Bottom* Only

Weight: Not applicable

)

Width Range: 3" to 10" (76 to 254 mm)

Envelopes, single feed

Feed: Top Only

Weight: Max. 24 lb.

)

Width Range: 6.5" to 9.5" (165 to 241 mm)

Envelopes, continuous feed, non-overlap

Feed: Bottom* Only

Weight: Max. 24 lb.

Width Range: 6.5" to 9.5" (165 to 241 mm)

Card Stock

Feed: Bottom*

Weight: Max. 100 lb. Index (180 g/m

)

Width Range: Not applicable

* Bottom feed requires optional pull or push tractor

78 Microline 490/491 User’s Guide

Paper Specifications: ML491

Single (Cut) Sheet

Feed: Top Only

Weight: 14 to 24 lb. US Bond (52.6 to 90 g/m

Width Range: 7.2" to 14.3" (182.8 to 363.2 mm)

Single-part, continuous forms

Feed: Rear, Bottom*

Weight: 12 to 24 lb. US Bond (45 to 90 g/m

Width Range: 3" to 16" (76.2 to 406.4 mm)

Carbonless continuous forms

Feed: Rear, Bottom*

Weight: 9 to 11 lb.

Width Range: 3" to 16" (76.2 to 406.4 mm)

Interleaf continuous forms

Feed: Rear, Bottom*

Weight: 10 to 12 lb. paper, 9 lb. carbon

Width Range: 3" to 16" (76.2 to 406.4 mm)

Labels

Feed: Bottom* Only

Weight: Not applicable

)

Width Range: 3" to 16" (76.2 to 406.4 mm)

Envelopes, single feed

Feed: Top Only

Weight: Max. 24 lb.

)

Width Range: 6.5" to 9.5" (165.1 to 241.3 mm)

Envelopes, continuous feed, non-overlap

Feed: Bottom* Only

Weight: Max. 24 lb.

Width Range: 6.5" to 9.5" (165.1 to 241.3 mm)

Card Stock

Feed: Bottom* Only

Weight: Max. 100 lb. Index (180 g/m

)

Width Range: Not applicable

* Bottom feed requires optional pull or push tractor

Specifications 79

Environmental Requirements

Physical Specifications

Temperature

Operating: 41 to 95°F (5 to 36°C)

Storage: 14 to 122°F (-10 to 50°C)

Humidity

Operating: 20 to 80% RH

Storage: 5 to 95% RH

Electrical Requirements

• 120 volts ac, (+6%, -15%) 50 or 60 Hz (±2%) 78 W Typical, 10 W idle

• 230 ac, (+15%, -14 %) 50 or 60 Hz (±2%) 78 W Typical, 10 W idle

Note: Height dimensions do not include the acoustic cover.

ML490

Size (WxDxH): 17.1" x 16.1" x 6"

(434 x 409 x 153 mm)

Weight: 16.7 lbs. (7.6 kg)

ML491

Size (WxDxH): 23.1" x 16.1" x 6"

(588 x 409 x 153 mm)

Weight: 21.1 lbs. (9.6 kg)

80 Microline 490/491 User’s Guide

Appendix D: Installation

Location

• Place your printer on a firm, solid surface.

• Allow enough space around the printer to easily access the platen knob and the various paper feed paths.

• Make sure a suitable grounded power outlet is available nearby.

Unpack

• If any items are missing, contact your dealer immediately.

• Keep your packing materials and carton in case you ever need to ship or transport the printer.

• Interface cable and paper are sold separately.

Printer Ribbon Cartridge

Power Cord

1 Remove any packing tape, then grasp the tabs (1) at either

end of the access cover and pivot it toward the front of the printer as far as it will go.

2 Remove the printhead shipping restraint.

3 Remove the shipping restraint from the pull-up roller

assembly (1).

82 Microline 490/491 User’s Guide

4 Use the tabs (1) to lift and remove the sheet guide, then

remove the shipping restraint.

5 Reinstall the sheet guide: insert the clips on either side of the

separator into the notches marked with a triangle, then press down to secure the separator in place.

Installation 83

Install the Ribbon Cartridge

Important!

Make sure you have the correct replacement ribbon for the your printer. The wrong ribbon will not print when installed in your printer.

Ribbon Cartridge Handling

• Leave unused ribbon cartridges in their packages until needed.

• Careful; the ribbon ink may cause permanent stains.

• Ribbon ink on skin or clothing can usually be removed with soap and water.

1 Make sure the printer is turned OFF. 2 Open the access cover and center the printhead (1).

CAUTION!

The printhead may be

3 Unpack the new ribbon cartridge and install it on the

printhead.

Important!

Do not remove the ribbon shield (1) from the ribbon!

4 Turn the take-up knob (1) in the direction of the molded-in

arrow to take up any ribbon slack.

HOT!

84 Microline 490/491 User’s Guide

5 Close the access cover and turn the printer on.

Power Connection

1 Make sure both the printer and the computer are OFF. 2 Plug the power cord into the back of the printer, then into a

grounded outlet.

3 Turn on the printer.

Computer Connections

Parallel (LPT): IEEE 1284

• Requires bidirectional cable, max. length 6 ft. (1.8 m), not supplied.

• Printer has 36-pin socket

1 Make sure the printer and computer are both turned off. 2 Attach a suitable bidirectional cable to the parallel connector

on the back of the printer. Then attach and secure the cable to your computer.

3 Turn the printer and computer back on.

Installation 85

USB: Specification 1.1 Compliant

• Requires USB 1.1 cable, maximum length 19.7 ft. (5 m), not supplied.

• Printer has USB “B” receptacle.

1 Make sure the printer and computer are both turned off. 2 Attach a suitable USB cable to the printer. Then attach the

cable to your computer.

3 Turn the computer and printer back on.

Loading Paper

For instructions on loading paper, see “Loading Paper” in Chapter 5.

86 Microline 490/491 User’s Guide

Testing the Printer

• Font Sample Test

• Rolling ASCII Test

• Hexadecimal Dump Mode

Font Sample Test

Important!

Wide carriage Model ML491: If you are using 8.5" paper to run the tests, make sure the paper width selection in the printer menu is set to 8.5 inches. Otherwise, printing on the platen may damage the printer. See Chapter 4: Menu Mode for more information.

The Font Sample Test prints a sample of the fonts standard to the printer.

The top of the printout shows the Printer Model, Emulation, Country Code, Interface, and Firmware Revision Level.

1 Make sure paper is loaded. 2 Turn off the printer. 3 Press and hold the

The printer prints a page of font samples and the test ends.

LF key while turning the printer back on.

Installation 87

Rolling ASCII Test

Important!

The Rolling ASCII Print Test produces a continuous printout of all 96 ASCII characters in a rolling pattern in whatever typeface is selected (default = LQ Courier).

The top of the printout shows the Printer Model, Emulation, Country Code, and Firmware Revision Level.

1 Make sure continuous forms paper is loaded. 2 Turn the printer off. 3 Press and hold the

QUIET/TOF key while turning the printer

back on. (If the printer comes on without starting the Rolling ASCII test print, you did not hold the QUIET/TOF key long enough.)

The printer prints the rolling ASCII text page after page.

4 Press

SEL to end the test.

88 Microline 490/491 User’s Guide

Hexadecimal Dump Mode

When the printer is placed in the Hexadecimal Dump Mode, all data received, including text and printer commands, is printed in both hexadecimal and ASCII format.

For example, the following line of BASIC code

LPRINT CHR$ (27);0;CHR$ (30);This is an example of a hexadecimal dump.

would print like this:

Note: In the ASCII format, all non-printable characters will be

represented by a period.

To engage the Hexadecimal Dump Mode:

1 Make sure paper is loaded. 2 Turn off the printer. 3 Hold the

turning on the printer.

To exit the Hexadecimal Dump Mode:

• Press the

• Turn the printer off, then on again.

SEL and FF/LOAD keys for several seconds while

SEL key

Emulations

The factory default emulation for your printer is Epson® LQ. If you wish to change to one of the IBM emulations, see

“Changing Emulations” in Chapter 3.

Printer Drivers

The Oki driver for your printer is provided on the CD included with the printer. You can either load the Oki driver or select one of the compatible drivers listed below in your software application.

Installation 89

Loading the OKI Driver

Using a Compatible Driver

Parallel Interface

1 Insert the CD into your CD-ROM drive.

Note: If the CD does not AutoPlay, click Start ® Run

Browse, then browse to your CD-ROM drive, double-click Install.exe and click OK.

2 Select your printer model. 3 When the Menu Installer window appears, click the Printer

Software button.

4 Follow the on-screen instructions.

USB Interface

1 Turn the printer on.

The Windows Add New Hardware Wizard window displays.

2 Click Next. 3 Insert the CD into your CD-ROM drive. 4 Follow the on-screen instructions to install the software for

your printer model.

Note: See your software documentation for information on

how to select a printer driver.

The drivers below are listed by decreasing compatibility with your printer. Use one as close to the top of the list as possible.

Epson LQ

• Epson LQ 870/1170

• Epson LQ 80/1000

• Epson LQ 2500

IBM Proprinter

• IBM Proprinter X24e/XL24e

• IBM Proprinter X24/XL24

• IBM Proprinter

IBM X24e AGM/XL24e AGM

Use this emulation only when you’ve selected an IBM Proprinter X24e/XL24e driver and you need to use Epson Letter Quality (LQ) high density graphics.

90 Microline 490/491 User’s Guide

Index

Accessories .............................................67

Alignment problems .................................9

ASCII Test .............................................. 88

Auto Carriage return............................... 35

Auto LF (Line Feed)........................ 32, 35

Auto Select ............................................. 32

Bar Codes ............................................... 77

Bi-directional printing .....................31, 39

Bottom Feed .................................... 78, 79

Form Tear-Off ....................................30

Line Spacing ......................................30

Skip Over Perforation ........................30

Buffer

Clearing ............................................. 37

Receive Buffer Size ...........................75

Carbonless continuous forms .......... 78, 79

Card Stock .......................................78, 79

Centering printhead position ..................62

Character Pitch ....................................... 38

Selecting ............................................ 24

Character Set ................................... 29, 36

Character Width...................................... 38

Characters Per Second (CPS) ...................7

Code Page Character Set ........................ 36

Codes, Printer Control ............................68

Commands

Epson LQ .....................................68–71

IBM Proprinter ............................ 72–81

Control Codes ......................................... 68

Cut Sheet Feeder..................................... 67

Electrical Requirements.......................... 80

Emulations ................................25, 29, 89

Changing ............................................25

Matching the printer driver ................ 61

Mode ...........................................29, 37

Envelopes ........................................ 78, 79

Environmental Requirements .................80

Epson LQ Commands ...................... 68–71

Factory defaults, menu mode ................. 27

Font Sample Test .................................... 87

Fonts

Embedded Printer Commands ...........61

Resident ............................................. 77

Selecting ............................................ 39

Forms Tear-Off ....................................... 37

Changing ............................................18

Top of Form ................................12, 17

Wait Time........................................... 40

Front Panel

Keys ..................................................... 9

Menu Mode........................................ 26

Gothic font .............................................. 77

Graphics

Printing .............................................. 37

Bi-directional ................................ 31

Uni-directional ..............................31

Resolution ..........................................76

GROUP, Menu Mode ............................. 26

Height, double height printing ............... 40

Hex Dump Mode ....................................89

Humidity ................................................. 80

I-Prime ......................................33, 37, 60

IBM

Character Set...................................... 36

Commands ...................................72–81

Emulation........................................... 29

Initialization string.................................. 60

Interleaf Continuous Forms .................... 79

Interleaf continuous forms...................... 78

Interleaved 2 of 5.................................... 77

Italics ............................................... 29, 40

Labels .............................................. 78, 79

Language ................................................ 29

Length, Page

Rear Feed ...........................................30

Top Feed ............................................ 31

Lights, Front Panel ................................. 23

Limited Operation ...................... 9, 38, 64

Line Spacing ...........................................37

Bottom Feed ...................................... 30

Rear Feed ...........................................30

Top Feed ............................................ 31

Margin, Bottom ............................... 31, 35

Mean Time Between Failures (MTBF)

7, 75

Mean Time to Repair (MTTR) ...............75

Memory, receive buffer size ...................75

MENU light ............................................26

Menu Mode ............................................ 26

Changing Settings .............................. 28

Entering ............................................. 27

Exiting ............................................... 27

Front Panel keys ................................ 26

Group .................................................26

Item ....................................................26

MENU light ....................................... 26

Printing the Menu Settings ................ 27

Reset to factory defaults .................... 27

Settings Table ...............................29–41

92 Microline 490/491 User’s Guide

Operator Panel Function ......................... 64

Options, purchasing ................................ 65

Orator font .............................................. 77

Page Length

Rear Feed ...........................................30

Top Feed ............................................ 31

Page Width.............................................. 38

Bottom Feed ...................................... 30

Rear Feed ...........................................30

Setting in the Printer Menu ......... 31, 38

Top Feed ............................................ 31

Paper

Cut Sheet............................................ 67

Paper Out Override .....................31, 38

Single Sheet ....................................... 52

Static .................................................. 64

Thickness ...........................................76

Weight ................................................79

Widths ................................................ 79

Setting in the Printer Menu ....31, 38

Paper Jams ..............................................63

Continuous feed ................................. 64

Rear Feed ...........................................54

Rear Feed, repetitive .......................... 55

Single Sheet ....................................... 57

Paper Lever............................................. 63

Paper Out ................................................64

Paper Park............................................... 18

Paper Path, switching ............................. 19

Parallel Interface..................................... 33

I-PRIME Signal ................................. 60

Parts, replacement, purchasing ...............65

Perforation, skip over ...................... 30, 40

Pitch, character ................................ 29, 38

Platen knob part number ........................ 66

Postnet .................................................... 77

Power rating.............................................. 3

PRINT, Menu Mode ............................... 26

Print Method ........................................... 75

Print Mode .......................................29, 39

Print Registration ............................. 31, 39

Print Server Option ................................. 67

Print Servers ...........................................67

Print Size ................................................ 76

Print Speed......................................... 7, 76

Print start position, reset to default ......... 16

Print Suppress ..................................32, 39

Printer Control Codes .............................68

Printer Drivers

matching the emulation ..................... 61

Selecting ............................................ 89

Printer Parameters .................................. 26

Printhead ................................................. 75

Centering position.............................. 36

Life..................................................... 75

Replacement Part No. ........................66

Printhead Gap

Definition ...........................................21

Setting ................................................21

Proportional Spacing .......................29, 39

Proprinter Commands....................... 72–81

Pull Tractor ............................................. 67

Push Tractor............................................ 67

Rear Feed

Continuous Forms.............................. 10

Form Tear-Off ............................. 30, 31

Jams, Repetitive .................................55

Line Spacing ......................................30

Paper Jam ........................................... 54

Skip Over Perforation ........................30

Receive Buffer Size ................................ 75

Reliability ............................................... 75

Replacement Parts .................................. 65

Index 93

Resolution (Graphics)............................. 76

Ribbon Cartridge

Replacement Part No. ........................66

Replacing ...........................................41

Ribbon Shield ...........................42, 62, 84

Roll Paper Stand .....................................67

RS-232C Serial Interface........................ 75

Security. control printer access................. 9

Self Tests .................................................87

Serial Interface Option ....................61, 67

Server, Print Option ................................ 67

Set, Menu Mode ..................................... 26

Sheet Guide ............................................ 64

SI...................................................... 32, 40

Single Sheet

Cut Sheet Feeder Option.................... 67

Jams ................................................... 57

Loading ..............................................52

Skip Over Perforation ............................. 30

Software

Embedded commands ........................ 61

Matching drivers to emulations ......... 61

Software vs. printer settings .............. 60

Specifications ......................................... 75

Speed, print, graphics ............................. 37

Standard Character Set ........................... 29

Static charges and paper .........................64

Symbol Sets .....................................29, 37

TEAR

Front Panel key ..................................18

TEAR feature ..................................... 17

Temperature Specifications .................... 80

Tests

ASCII Test ......................................... 88

Font Sample Test ............................... 87

Hex Dump.......................................... 89

Thickness, Paper ..................................... 76

Time Out.......................................... 32, 40

Top Feed ........................................... 78–81

Bottom Margin................................... 31

Line Spacing ......................................31

Pull Tractor ........................................ 67

Single Sheet ....................................... 11

Top of Form ............................................35

Forms Tear-Off ......................8, 12, 17

Paper Shield ..................................9, 12

Reset to factory default ...................... 16

Setting ................................................12

Standard Setting ..........................12, 16

Typefaces ................................................29

Resident ............................................. 77

Selecting ..................................... 23, 39

Software commands .......................... 23

Uni-directional printing, graphics .......... 31

Utility

Front Panel Light ...............................77

Print Speeds ......................................... 7

Utility Mode Print Quality ................. 22

Wait Time ........................................ 31, 40

Weight, Paper ......................................... 79

Width

Character ............................................ 38

Double width printing........................ 40

Page

Bottom Feed .................................. 30

Rear Feed ...................................... 30

Top Feed........................................31

Paper .................................................. 79

Zero character (slashed, unslashed). 29, 40

94 Microline 490/491 User’s Guide

Oki Microline 490 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual