Oki MICROLINE 720, MICROLINE 721 User Manual

MICROLINE

720/721

Printer Handbook

Every effort has been made to ensure that the information in this document is complete, accurate and up-to-date. OKI assumes no responsibility for the results of errors beyond its control. OKI also cannot guarantee that changes in software and equipment made by other manufacturers, and referred to in this handbook, will not affect the applicability of the information in this manual. Mention of software products manufactured by other companies does not necessarily constitute endorsement by OKI.

OKI and MICROLINE are registered trademarks of OKI Electric Industry Company, Ltd.. IBM and PC are registered trademarks of International Business Machines Corporation. Epson is a registered trademark of Seiko Epson Corp. Lotus and 1-2-3 are registered trademarks of Lotus Development Corporation. Microsoft and MS-DOS are registered trademarks and Windows is a trademark of Microsoft Corporation. WordPerfect is a registered trademark of WordPerfect Corporation.

Important Safety Instructions

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

• Read the setup and operation instructions in this manual carefully. Be sure to save it for future reference.

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

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

• Place your printer on a firm, solid surface. If you put it on something unsteady, it might fall and be damaged; if you place it on a soft surface, such as a rug, sofa, or bed, the vents may be blocked, causing it to overheat.

• To protect your printer from overheating, make sure no openings on the printer are blocked. Don’t 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.

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

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

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

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

• Your printer has a grounded plug as a safety feature, and it will only fit into a grounded outlet. If you can’t plug it in, chances are you have a non-grounded ontlet; 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, don’t 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.

• Aside from the routine maintenance described in this handbook, 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 manual – 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 and follow the procedures in Chapter 5. 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.

• Screen jitter on your CRT may occur in an environment where the space between your printer and CRT is narrow (200 mm or less). In such cases, open up the space.

ontents

Introduction ............................................................................................................. 1

Chapter 1: Installation ........................................................................................... 3

Unpacking ................................................................................................................... 3

Removing Shipping Retainers........................................................................ 4

Installing Ribbon Cartridge ...................................................................................... 5

Making Connections ..................................................................................................6

Connection with Computer ............................................................................6

Connection with Power................................................................................... 8

Chapter 2: Loading Paper ...................................................................................... 9

Loading Single-Sheet Paper ....................................................................................11

Loading Rear-Feed Paper ........................................................................................14

Paper Handling......................................................................................................... 21

Tear Feature.....................................................................................................21

Forms Tear-off Feature ..................................................................................22

Paper Park Feature......................................................................................... 22

Switching Paper Paths ...................................................................................23

Chapter 3: Operation ............................................................................................ 25

Control Panel.............................................................................................................25

Print Mode .................................................................................................................27

Indicator Lights .............................................................................................. 27

Buttons .............................................................................................................28

Menu Mode ...............................................................................................................32

Sample Menu ..................................................................................................33

Summary of Menu Settings ..........................................................................34

Menu Mode Indicator Lights .......................................................................37

Menu Mode Buttons ......................................................................................37

Resetting Menu to Factory Defaults ............................................................38

Performing Basic Tasks ............................................................................................39

Selecting Print Quality ..................................................................................39

Selecting Character Pitch .............................................................................. 40

Testing Your printer ....................................................................................... 41

Resetting Top of Form ...................................................................................45

Using Bar codes ..............................................................................................45

Chapter 4: Working with Software ................................................................... 49

Basic Terminology ....................................................................................................49

Printer Commands .........................................................................................49

Emulations ...................................................................................................... 50

Printer Drivers .......................................................................................................... 50

Compatible Printer Drivers (DOS) .............................................................. 50

Windows Printer Drivers ..............................................................................51

Chapter 5: Problem Solving, Maintenance, & Service...................................53

Problem Solving .......................................................................................................53

Maintenance ..............................................................................................................56

Replacing the Ribbon Cartridge................................................................... 56

Clearing Paper Jams ......................................................................................59

Cleaning the Housing ....................................................................................63

Accessories ................................................................................................................ 64

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

Appendix A: Specifications ................................................................................ 67

Appendix B: Menu Selections ............................................................................ 71

Explanation of Menu Items .....................................................................................74

Appendix C: Printer Commands........................................................................ 81

IBM Proprinter Printer Commands .......................................................................81

Epson FX Printer Commands .................................................................................85

OKI Microline (ML) Printer Commands ...............................................................89

Appendix D: ASCII Character Codes ............................................................... 93

Lower ASCII Character Sets ................................................................................... 93

Upper ASCII Character Sets....................................................................................97

Epson International Character Substitutions ..................................................... 101

IBM International Character Substitutions .........................................................102

MICROLINE International Character Substitutions .........................................103

Code Page Character Sets...................................................................................... 104

Appendix E: Interfacing .................................................................................... 107

Pin Assignments for Parallel Interface Signals .................................................. 107

Universal Serial Bus (USB) ....................................................................................108

Installing the Serial Interface ................................................................................109

Pin Assignments for Serial Interface Signals ...................................................... 111

ntroduction

This Guide is arranged to help you get your new MICROLINE 720 or 721 printer set up and running quickly as well as providing you with more detailed information for future reference. Here’s how it’s organised:

• Chapter 1 (Installation) shows you how to get your printer ready to run and how to connect it to your computer.

• Chapter 2 (Loading Paper) explains how to load paper for any of the two methods of paper feed.

• Chapter 3 (Operation) describes how to control your printer from the front panel. It also explains how to change the defaults, how to test your printer and how to use bar codes.

• Chapter 4 (Working with Software) gives you information on selecting a driver and installing your printer on popular software packages.

• Chapter 5 (Problem Solving/Maintenance/Service) gives helpful hints on how to solve common printer problems and how to maintain your printer in tip-top shape.

• Appendices A through E contain a variety of reference material, including specifications, menu listings, lists of printer programming commands and ASCII characters.

ML720/721 Printer Handbook 1

2 Introduction

hapter 1: Installation

This chapter explains how to unpack and install your new printer.

Unpacking

Unpack your printer and make sure you have the following items. If you are missing any of these items, contact your dealer immediately for a replacement.

• Printer

• Ribbon cartridge

• AC cord

It is not included in case of some models.

• Printer Handbook & Software on CD-ROM.

Interface cable and paper are sold separately.

ML720/721 Printer Handbook 3

Removing Shipping Retainers

Tab

Shipping retainer

1. Open access cover by grasping tabs at either end and lifting.

2. Remove printhead shipping retainer (leave cover open for installation of ribbon).

4 Installation

Knob

Paper

separator

3. Hold the knob and remove the paper separator.

Protictive material

" "mark

Protictive material

Pull-up roller assembly

Paper

separator

" "mark

4. Remove the protective material.

5. Set and attach the post to the“∆”mark

of the upper cover and the paper separator.

6. Remove the protective material from the pull-up roller assembly.

Installing Ribbon Cartridge

1. With access cover open, grasp printhead and slide it until it is centered on platen.

2. Remove ribbon cartridge from its packaging.

Center printhead on platen

ML720/721 Printer Handbook 5

Important!

Leave the clear plastic rib-

bon shield on the cartridge!

Setting

1 2 3 4 5

Ribbon shield

Headgap lever

position

between 1 and 2

between 2 and 3

Knob

Number of

sheets

1 2 3 4

envelopes or

extra-thick paper

3. Holding ribbon cartridge with knob facing up and ribbon sheild facing platen, fit grooves on either side at back end of cartridge over pins on ribbon plate.

4. Lower front of cartridge over printhead until it snaps into place, then turn knob in direction of arrow (clockwise) to take up ribbon slack.

5. The headgap lever by the side of cartridge adjusts for different paper thicknesses. Set it for the number of sheets in the forms you’re using from 1 to 4; use setting 5 for envelopes or extra-thick paper. Adjust the setting up or down for the best print quality.

Printhead

1 2 3

Knob

Note: When the setting is set at 2~5, the printer automatically slows down for better print quality with thicker multipart forms.

Important!

Be sure to use only ribbons specifically for use with MICROLINE 720 series.

Headgap lever

For best results, use genuine OKI ribbons.

Making Connections

Connection with Computer

There instructions are for the standar d parallel interface and USB interface. Instr uctions for installation/connection of a serial interface are included with the serial interface accessory. For more information on the serial interface accessory, see Chapter 5.

6 Installation

Pin assignments for the parallel, USB and the serial interfaces are listed in appendix E.

You must supply the cable for connecting your printer to your computer.

a. In the case of parallel interface cable

1. Make sure both printer and computer are OFF.

2. Locate interface port on back of printer.

Interface

port

3. Plug parallel interface cable into port and secure it in place with wire loops.

Wire loops

b. In the case of USB interface cable

1. Make sure both printer and computer are OFF.

2. Locate interface port on back of printer.

USB port

3. Plug USB interface cable into port.

ML720/721 Printer Handbook 7

Connection with Power

Power cord

Socket

1. Make sure both printer and computer are OFF.

2. Plug power cord into back of printer. Plug other end into grounded outlet.

3. Turn printer on. Printhead will cross back and forth along platen, and POWER light will come on. ALARM light will also come on, but don’t be concerned: it’s just telling you that there is no paper loaded.

Power light Alarm light

You’re now ready to load paper—proceed to Chaper2.

8 Installation

hapter 2: Loading Paper

Your printer has provision for single-sheet paper feed from the top and for continuous-form paper feed from the rear. You can also install options: the Cut Sheet Feeder, which holds a stack of 100 sheets for feeding from the top and the Push and/or Pull Tractors for feeding continuous-form labels, heavy card stock or multi-part forms from the bottom. See Chapter 5 for more information on these options.

Top Feed

• Single sheets (basis weight 14 to 24 lbs)

• Single envelopes – 24-lb maximum – 6.5” to 9.5” wide

• Transparencies (8.5 x 11”)

Rear feed (continuous forms only, thickness to 0.014” [0.36 mm])

• Single-part continuous forms – 12 to 24 lb. – Minimum 3” wide (*

)

• Carbonless, multi-part forms – Original, plus 4 copies – 9 to 11 lb – Minimum 3” wide (*

• Interleaf, multi-part forms (with carbon paper) – Original, plus 4 copies – 10 to 12 lb paper, with 9 lb carbon – Minimum 3” wide (*

) Please change mentioned below centering Position within a set-up group fol-

lowing indication of 32 pages when a form of 3” wide is used by Rear Feed. In the case of ML720 “Mode 1”. In the case of ML721 “Mode 2”.

ML720/721 Printer Handbook 9

)

Bottom feed (continuous forms only, thickness to 0.017” [0.44mm])

• Single-part continuous forms – 12 to 24 lb – Minimum 3” wide (*

)

• Carbonless, multi-part forms – Original, plus 5 copies – 9 to 11 lb – Minimum 3” wide (*

)

• Interleaf, multi-part forms (with carbon paper) – Original, plus 4 copies – 10 to 12 lb paper, with 9 lb carbon – Minimum 3” wide (*

)

• Continuous-feed envelopes – 24 lb maximum – 6.5” to 9.5” wide (envelope itself)

• Labels – minimum 3” wide (*

)

– maximum 10”(ML720) or 16” (ML721) wide

• Card stock: papers up to 120 lb maximum

) Please change mentioned below centering Position within a set-up group fol-

lowing indication of 32 pages when a form of 3” wide is used by Bottom Feed. In the case of ML720 “Mode 1”. In the case of ML721 “Mode 2”.

10 Loading Paper

Loading Single-Sheet Paper

The single-sheet paper path is best for letterhead stationery, memos, and envelopes. We also recommend it for printing graphs and charts because it provides the most accurate control of the paper.

To load in single sheets of paper:

If you have any continuous-form paper in the paper path, you must press the PARK button on the front panel to remove it from the path before lading single sheets.

SEL light

Move to"TOP"

1. Make sure printer is turned ON and deselected (SEL light off – press SEL button to deselect it necessary).

The ALARM light will remain on until paper is loaded.

2. Move paper lever to position marked “TOP”.

ML720/721 Printer Handbook 11

Wire feed guide

Paper separator

3. Grasp back of paper separator and unsnap it from housing, then swing it up into single-sheet feed position, making sure that wire feed guide is nestled in separator.

Paper feed guides

Press

Flashes

4. Adjust paper feed guides for width of paper and drop sheet of paper into separator. Paper will automatically feed into printer.

If the sheet of paper doesn’t feed in properly, the “15” light in the Character Pitch section at the bottom right of the control panel will begin flashing. To correct this, press the SHIFT and RESET buttons simultaneously, then reload the sheet.

12 Loading Paper

5. Baseline for Top of Form (TOF) on pa-

per is indicated by red line on clear plastic paper shield.

Hold

1 2 3

Press to feed paper down in micro increments

Press to feed paper up in micro increments

Baseline

6. If desired, change TOF setting using control panel:

☛ to set TOF further down on page,

hold SHIFT button while pressing FF/ LOAD button: this will advance paper up in micro increments

☛ to move TOF further up on page,

hold SHIFT button while pressing LF button: this will advance paper down in micro increments

7. Press SEL button (SEL light will come on).

ML720/721 Printer Handbook 13

Loading Rear-Feed Paper

The rear-feed paper path is recommended for single-thickness, continuous fan-fold paper when printing spreadsheets, long reports, etc. For graphics or charts, it’s best to use the single-sheet paper path.

To load continuous-form paper from the rear:

1. If you have paper in paper path, be sure to remove it before installing rear-feed paper. To remove single sheet, press FF/ LOAD button. To remove bottom-feed paper, press PARK button.

Position "Rear"

2. Move paper lever to position marked “REAR”.

3. Open the access cover.

Paper separator

14 Loading Paper

Paper separator

Pull-up roller assembly

4. Hold up the middle of the paper separator, and pull upwards.

5. Rotate the paper separator forward and stand against the pull-up roller assembly.

6. Locate tractors.

Tractors

ML720/721 Printer Handbook 15

Lock lever

Paper separator

Tractor cover

7. Pull up on lock levers to release tractors. Position right-hand tractor for width of paper you’re loading.

The movement of the left tractor is limited to ensure that the paper will always contact the paper sensor when loaded.

8. Open the tractor cover, and raise the paper separator.

9. Pull paper, and place first two holes on each side over tractor pins. Please note that an equal number of paper holes must be engaged on either tractor in order to ensure proper paper feed.

Paper holes on pins

16 Loading Paper

Paper separator

Upper cover

" "mark

10.Replace the paper separator, and insert until the paper separator and upper cover marks align.

ML720/721 Printer Handbook 17

Lock lever

Reference marks

Wire feed guide

Tractor covers

11.Close tractor covers and adjust left tractor to position edge of paper: reference marks on printer indicate left edge position for the two most common paper sizes. When paper is properly aligned, lock left tractor in place by pushing back on lock lever.

12.Adjust right tractor so that paper holes are centered on pins(careful – if paper is stretched too tight or left too loose, it can jam and cause problems), then lock right tractor in place by pushing back on lock lever.

13.Set Paper separator and swing wire feed guide over to rest on pull-up roller assembly to prevent from curling back into printer.

14.Push FF/LOAD button. Paper will automatically feed into printer and ALARM light will go out.

18 Loading Paper

15.Baseline for top of Form(TOF) on pa-

per is indicated by red line on clear plastic paper shield.

1 2 3

Press to hold the paper before releasing the TEAR button.

Press to feed

Hold

paper down in micro increments

Baseline

Press to bring the paper down to the print position.

16.If desired, change TOF setting using control panel:

If form tear off is being selected in the printer menu, press the TEAR button to bring the paper down to the print position. Hold down the SHIFT button and release the TEAR button.

☛ to set TOF further down on page,

hold SHIFT button while pressing FF/ LOAD button: this will advance paper up in micro increments

☛ to move TOF further up on page,

hold SHIFT button while pressing LF button: this will advance paper down in micro increments

Press to feed paper up in micro increments

ML720/721 Printer Handbook 19

17.Press SEL button (SEL light will come on).

To temporarily change the Top of Form setting for a particular print job, deselect the printer and press the LF button until you reach the TOF position you want to use. The printer will retain this setting until you turn it off.

20 Loading Paper

Paper Handling

Your printer has several handy paper handling features:

• Tear

• Form Tear-off

• Paper Park

Tear Feature

When you’re using continuous forms with either the built-in rear-feed tractor or the optional bottom-feed push tractor, you can use this feature to advance the forms up to the tear position so you can easily tear off a printed sheet without wasting paper or readjusting the printer. To do this, simply press the TEAR button on the front panel.

Press

The tear feature can not be used when the optional pull tractor is installed.

ML720/721 Printer Handbook 21

Forms T ear-off Feature

Caution!

The Forms Tear-off feature can be engaged to automatically move the paper up to the tear position after the selected interval (500 milliseconds, one second, or two seconds). The page will stay in the tear-off position until the printer receives data. It will then move down to the initial printing position.

This feature is normally turned off. To activate it, enter the printer menu (see Menu Mode in Chapter3) and choose one of the intervals.

Do not engage Forms Tear-off when printing on labels!

Some programs, such as high resolution graphics packages, pause occasionally while sending data to the printer. If the pause lasts more than the selected interval, the paper will advance to the tear-off position until more data is received. No data will be lost, but this extra paper movement can cause uneven print registration in graphics. If you have this problem, use the menu to deactivate Forms Tear-off.

Paper Park Feature

If you have continuous-form paper loaded and you wish to switch to another paper path, first tear off the printed pages, then simply press the PARK button. The continuous-form paper will immediately retract from the paper path.

Press

22 Loading Paper

Switching Paper Paths

To switch from continuous-form feed from the rear or bottom (optional push or pull tractor installed) of the printer to single-sheet feed from the top:

1. Tear off printed pages.

2. Press PARK button.

3. Swing wire guide up into paper separator, then pivot separator to upright position.

4. Move paper lever to position marked “TOP”.

5. Load single sheet paper into paper separator.

To switch from top feed to continuous-form tear or bottom (optional push or pull tractor installed) feed:

1. Make sure no sheet is in paper path (press FF/LOAD to remove single sheet from path).

2. Lower paper separator to continuous forms position and swing wire guide over onto pull-up roller assembly.

3. Move paper lever to position marked “REAR” or “BOT”, as appropriate.

4. Press FF/LOAD button. Continuous-form paper will advance into print position.

ML720/721 Printer Handbook 23

24 Loading Paper

hapter 3: Operation

This chapter explains how to operate your printer. It also provides instructions on how to change the default settings and how to perform basic tasks, including selecting typeface/print quality, selecting character pitch, testing your printer, and resetting Top of Form to the factory default.

Control Panel

Your printer ’s front panel lets you control paper feeding, customize your printer ’s defaults to your particular needs, and select print quality and character pitch.

Here’s a breakdown of the controls on the front panel:

ML720/721 Printer Handbook 25

The seven buttons to the left on your control panel are multi-function buttons. In routine printer operation, they are used to manipulate the paper, but you can also use them to enter and make changes in the printer’s program menu.

The PRINT QUALITY and CHARACTER PITCH sections at the right on the front panel are used to select the quality and size of the printing. See “Performing Basic Tasks” later in this chapter for information on how to use these buttons.

Important!

be overridden by commands sent by the commercial software package from which you’re printing a document. If you run into this problem, see Chapter 5 for information on how to correct it.

26 Operation

The print quality and character pitch set by means of the front panel can

Print Mode

In its normal operating state, your printer’s front panel is in the Print Mode.

Indicator Lights

In the Print Mode, your printer has the following lights to indicate its status:

1. POWER light: Glows whenever printer is on.

2. SEL light: Glows when printer is selected, ready to receive data. Flashes when the printer is in print suppress mode or power saving mode. Goes out when printer is deselected (can’t receive data).

3. ALARM light: Glows when error condition exists, such as out of paper or paper jam. Also glows when paper lever is set to wrong position.

Important!

Try turning the printer off, then on again; if the light is still flashing, contact your service dealer (see Chapter 5 for more information on obtaining service).

4. QUIET light: Glows when printer is in QUIET state (printer selected or deselected).

ML720/721 Printer Handbook 27

If the ALARM light is blinking, an unrecoverable error condition exists.

Buttons

When the printer is selected (SEL light on), only the functions marked at the top of the bank of buttons (LF, FF/LOAD, TEAR, PARK, QUIET) are in effect. When the printer is deselected (SEL light off), the functions marked at the bottom of the buttons (Micro Feed Down, Micro Feed Up, TOF) can be accessed by means of the SHIFT button.

Each button can have several functions, depending on the mode in use (Print Mode or Menu Mode), on whether or not the printer is selected and on whether or not the optional Cut Sheet Feeder (CSF) is installed. Most buttons also have a different function if they are pressed while the printer is being turned on. In addition, different combinations of two buttons can be used to access functions.

The various function available for each button are summarized in the table below.

The PRINT QUALITY and CHARACTER PITCH buttons are discussed under “Performing Basic Tasks,” later in this chapter.

28 Operation

Summary of Front Panel Button Functions

Button Print Mode

SEL

Selects/deselects printer. Resets Paper Out of Paper Jam Alarm. Also ends Font Test or Rolling ASCII test .

SEL +

Activates Menu Mode.

SHIFT

With printer deselected: used with other keys to set and store Top of Form.

Advances paper Up one line. Press and hold to advance by repetitive line feeds.

LF+

SHIFT

With printer deselected, moves Top of Form setting up (paper moves down) on page in micro increments.

Help on Power Up

Activates Menu Mode.

N/A

Activates Font Test.

With CSF Installed

Same as Print Mode

Menu Mode

Resets Paper Out Alarm.

Exits Menu Mode.

N/A

Advances to next Group in Menu.

Goes back to previous Group in Menu.

FF/LOAD

+SHIFT

Feeds in sheet of paper or advances continuous-form paper to print position.

With printer deselected, moves Top of Form setting down (paper moves up)

N/A

Inserts or Ejects Page.

Same as Print Mode

Advances to next Item in Menu.

Goes back to previous Item

in Menu. on page in micro increments.

TEAR

Moves continuous-feed paper up for tear-off or back down for printing

N/A

Advances to

next Value in

Menu. (select/deselect states).

N/A : Not applicable.

ML720/721 Printer Handbook 29

Button Print Mode

Help on Power Up

With CSF Installed

Menu Mode

TEAR+

SHIFT

PARK

PARK+

SHIFT

QUIET

QUIET+

SHIFT

QUALITY

+SHIFT

Move the print head to Reverse.

Parks continuous-form paper.

Move the print head to Forward.

Activates/deactivates QUIET mode.

Sets Top of Form.

Selects next Print Quality mode.

Sets/Resets Incremental Print mode.

N/A

Activates Rolling ASCII Test.

N/A

Move the print head to Reverse.

Ejects paper.

Move the print head to Forward.

Activates/deactivates QUIET mode.

Sets Top of Form.

Selects next Print Quality mode.

Sets/Resets Incremental Print mode.

Goes back to previous Value in Menu.

Prints list of all Menu settings for current emulation.

Prints current Group Menu Setting.

N/A

Prints all Menu settings, regardless of emulation/options engaged.

CHARAC-

TER

Selects next pitch setting.

N/A

Selects next pitch setting.

N/A

PITCH

CHARAC-

TER

PITCH+

With printer deselected, resets printer.

N/A

With printer deselected, resets printer.

N/A

SHIFT

FF/LOAD

+TEAR

N/A

Resets Menu and Top of

N/A

Form to factory default.

N/A : Not applicable.

30 Operation

Button Print Mode

Help on Power Up

With CSF Installed

Menu Mode

SEL+LF

QUIET+

PARK

SEL+

FF/LOAD

N/A

Resets Menu to factory default.

Resets Top of Form to factory default.

Activates hex dump mode.

N/A

N/A : Not applicable.

ML720/721 Printer Handbook 31

Menu Mode

When your printer is in the Menu Mode, you can use the front panel controls to change the defaults for the printer parameters, including emulation, page length, line spacing, typeface, pitch, etc. For example, you might want to change the page length to 14 inches if you’re printing on legal-size documents, or to 3 inches if you’re printing on labels or small cards.

To place your printer in the Menu Mode, hold the SHIFT button while pressing the SEL button (printer either selected or deselected). The MENU light will come on and, if the printer was selected, the SEL light will go out.

To exit the Menu Mode, hold the SHIFT button and press the SEL button. The MENU light will go out and the SEL light will come on.

32 Operation

Sample Menu

The menu is made up of groups of parameters. Within each group is a list of items and each of those items has several possible settings. Here’s a sample Menu printout. The first column lists the groups; the second, items; the third, settings:

ML720/721 Printer Handbook 33

Summary of Menu Settings

The table below details the entries in the printer Menu as it comes from the factory. The defaults are in bold face italic type.

Other entries will appear in the Menu depending on what options you have installed and what emulation is engaged.

For a complete listing of all the available Menu selections, along with explanations for each setting, see appendix B.

Group Item Setting

Printer Control

Font

Symbol Sets

Rear Feed

Emulation Mode

Print Mode

DRAFT Mode Pitch Proportional Spacing Style Size

Character Set

Language Set

Zero Character Code Page

Line Spacing Form Tear-Off Skip Over Perforation Page Width* Page Length

IBM PPR, Epson FX, ML

Utittity, NLQ Courier, NLQ Gothic,

DRAFT

HSD, SSD 10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi No, Yes Normal, Italics Single, Double

Set I, Set II (EPSON, IBM mode)

Standard, Line Graphics, Block Graphics (ML mode) American, French, German, Britishi, Danish I, Swedish, Italian, Spanish I, Japanese, Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, Publisher

Slashed, Unslashed USA, Canada French, Multilingual, Portu-

gal, Norway, BRASCII, Abicomp, Multilingual 858 ISO 8859-15

6 LPI, 8 LPI Off, 500 ms, 1 sec, 2 sec No, Yes

13.6", 8" 11", 11 2/3", 12", 14", 17", 5", 3", 3.5", 4",

5.5", 6", 7", 8", 8.5"

* ML721 only

34 Operation

Group Item Setting

Bottom Feed

Top Feed

Set-Up

Line Spacing Form Tear-Off Skip Over Perforation Page Width * Page Length

Line Spacing Bottom Margin Page Width * Page Length

Wait Time Page Length Control

Graphics 7 or 8 Bit Graphics *

Receive Buffer Size Paper Out Override Print Registration

7 or 8 Bits Data Word * Operator Panel Function Reset Inhibit Print Suppress Effective Auto LF Auto CR * Print DEL Code *

SI Select Pitch (10 CPI) * SI Select Pitch (12 CPI) * Time Out Print Auto Select Centering Position CSF Type * ESC SI Pitch *

Power Saving Power Save Time

6 LPI, 8 LPI Off, 500 ms, 1 sec, 2 sec No, Yes

13.6", 8" 11", 11 2/3", 12", 14", 17", 5", 3", 3.5", 4",

5.5", 6", 7", 8", 8.5"

6 LPI, 8 LPI Valid, Invalid

13.6", 8" 11", 11 2/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"

1 sec, 2 sec, 500ms by Actual Page Length, by Menu Setting

Uni-directional, Bi-directional 8, 7

64K, 128K, 1 Line, 32K No, Yes 0, 0.05 mm Left, 0.10 mm Left, 0.15 mm Left,

0.20 mm Left, 0.25 mm Left, 0.25 mm Right,

0.25 mm Right, 0.15 mm Right, 0.10 mm Right,

0.05 mm Right

8, 7 Full Operation, Limited Operation No, Yes Yes, No No, Yes No, Yes No, Yes

17.1 CPI, 15 CPI

20 CPI, 12 CPI Valid, Invalid No, Yes DEFAULT, MODE 1, MODE 2 Wide, Narrow

17.1 CPI, 20 CPI Enable, Disable 5min, 10min, 15min, 30min, 60min

* ML721 only *1 ML mode Only *2 IBM mode Only

ML720/721 Printer Handbook 35

Group Item Setting

Parallel I/F Buffer Print, Buffer Clear, Invalid

I-Prime Pin 18 Auto Feed XT * Bi-Direction

+5V, Open

Invalid, Valid Enable, Disable

*3 EPSON mode Only

36 Operation

Menu Mode Indicator Lights

In the Menu Mode, the following lights indicate your printer’s status:

1. POWER light: Glows when printer is on.

2. MENU light: Glows when printer is in Menu Mode.

Menu Mode Buttons

1 2 3 4

ML720/721 Printer Handbook 37

Here is a summary of the buttons active in the Menu Mode:

1. GROUP button: Press to scan through groups of listings. Each time you press the GROUP button, a line will print, showing the next group in the Menu. To go back one group, hold the SHIFT button while pressing the GROUP button.

2. ITEM button: Press to scan through items for a particular group. Each time you press the ITEM button a line will print, showing the next item within the group. To go back one item, hold the SHIFT button while pressing the ITEM button.

3. SET button: Press to change setting for the items. Each time you press the SET button, a line will print across the page showing the next setting for that item. Keep pressing the button until the setting you wish to engage appears. To go back one setting, hold the SHIFT button while pressing the SET button.

4. PRINT button: Press to print out listing of current settings for each items, group by group.

Resetting Menu to Factory Defaults

To reset your printer Menu to the factory settings, turn the printer off, then hold the SEL and LF buttons while turning it back on again.

Hold while turning printer on

38 Operation

Performing Basic T asks

Selecting Print Quality

Print quality button

Your printer allows you to select from four print qualities: utility, near letter quality (NLQ), high speed draft (HSD) and super speed draft (SSD). Utility printing, in Gothic, is the default, designed for preparing rough drafts or internal correspondence. NLQ printing, in Courier or Gothic (depending on MENU setting), gives you sharp, crisp characters for correspondence and important final documents that require a polished appearance. HSD and SSD printing, in Gothic, gives the fastest printing, but with the poorest quality.

To select the print quality you want, press the PRINT QUALITY button successively until the light underneath the print quality you wish to engage is lit.

Your printer also prints any of eight different bar codes accessible through printer commands. For more information on bar codes, see the end of this chapter.

ML720/721 Printer Handbook 39

Selecting Character Pitch

Character Pitch button

The character pitch determines the width of the individual characters and is measured in characters per inch (cpi). To select the character pitch, press the CHARACTER PITCH button successively until the light underneath the pitch you wish to engage is lit. In the Epson and IBM emulations, the choices are 10 cpi, 12cpi, 15cpi, 17cpi, 20cpi, or Proportional. In the MICROLINE emulation, the choices are 10cpi, 12cpi, 15cpi, 17cpi, or 20 cpi, either non-proportional or proportional: proportional is selected when both the light under the desired cpi and the light under “Prop” are lit.

To reset the pitch to the user default (Menu Setting):

1. Be sure printer is deselected (SEL light out). If not, press SEL button.

2. Hold SHIFT button while pressing CHARACTER PITCH button.

If the SI command is received from your software, the character pitch selected on the control panel will be overridden by the SI command.

40 Operation

The table below summarizes the fonts available from your printer:

Typeface Spacing

NLQ Courier

NLQ Letter Gothic

Utility (Gothic)

High Speed Draft (Gothic)

Bar Code

Super Speed Draft (Gothic)

10 cpi, 12 cpi, 15 cpi, 17 cpi, 20 cpi, Proportional

10 cpi, 12 cpi, 15 cpi, 17 cpi, 20 cpi

Code 39, UPC A, UPC E, EAN 8, EAN 13, Inter leaved 2 of 5, Code 128, Postnet

12 cpi

T esting Y our printer

Your printer has three your can run: the Font Test, the Rolling ASCII Test, and the Hexadecimal Dump Test.

ML720/721 Printer Handbook 41

Font Test

The Font Test provides a printout containing samples of available typefaces. Here’s a portion of a Font Test printout:

42 Operation

To run the Font Test:

1. Be sure paper is loaded.

2. Turn off printer.

3. Hold LF button for several seconds while turning printer on. (IF printer simply turns on without starting to print, you didn’t hold down LF button long enough.)

Rolling ASCII Test

The Rolling ASCII Test produces a continuous printout of all ASCII characters. The printing will continue until you stop it manually by pressing the SEL button. Here’s a sample portion of a Rolling ASCII Test:

ML720/721 Printer Handbook 43

To activate the Rolling ASCII Test:

1. Be sure paper is loaded.

Caution!

2. Turn off printer.

3. Hold QUIET button for several seconds while turning printer on. (If printer simply turns on without starting to print, you didn’t hold down QUIET button long enough.)

Hexadecimal Dump Test

If you want to test the data your computer is sending to the printer, you can place the printer in the Hexadecimal Dump Mode. When the printer is in the Hex Dump Mode, all data received, including text and printer commands, will be printed in both hexadecimal and ASCII format.

For example, this line of BASIC code:

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

For wide carriage Model 721, be sure you have wide paper loaded!

In the ASCII format, all non-printable characters will be represented by a period.

would print like this:

44 Operation

To engage the Hexadecimal Dump Mode:

1. Be sure paper is loaded.

2. Turn off printer.

3. Hold SEL and FF/LOAD buttons for several seconds while turning on printer.

The printer will print the line “Hex Data Dump” and be ready to receive data in the Hexadecimal Dump Mode. To run the test, simply send data to the printer while it is in the Hexadecimal Dump Mode.

When you’re done, you can exit the Hexadecimal Dump Mode by either pressing the SEL button or by turning the printer off, then on again.

Resetting T op of Form

To reset the Top of Form to the factory default:

1. Turn off printer.

2. Hold down QUIET and PARK buttons while turning printer back on.

Using Bar codes

Your MICROLINE 320/321 Turbo printer incorporates eight different bar codes:

• UPC A

• UPC E

• EAN 8

• EAN 13

• Code 39

• Code 128

• Interleaved 2 of 5

• Postnet

ML720/721 Printer Handbook 45

You will find a list of the bar code printer commands for each emulation in appendix C.

Here is a brief explanation of each of the available bar codes, along with a sample printout for each one.

UPC A Bar Code

UPC (Universal Product Code) bar coding is used in the supermarket industry. UPC A coding contains ten digits: the first five digits represent the manufacturer, the second five digits identify the product.

UPC E

UPC E bar coding is a six-digit variation of UPC A, used for labeling small items.

46 Operation

EAN 8

EAN (European Article Numbering) bar coding is a variation of UPC coding. EAN 8 encodes eight digits.

EAN 13

EAN 13 encodes 13 digits and contains the same number of bars as UPC A. The thirteenth digit combined with the twelfth digit provides a code representing a country.

Code 39

Also known as 3 of 9 Code, code 39 is used in non-retail applications. Each character has five bars and four spaces. Code patterns have been developed for 44 different alphabetic, numeric and graphic characters.

ML720/721 Printer Handbook 47

Code 128

Code 128 has 106 different characters, each of which can have any one of three different meanings depending on which code set (A, B, or C) is engaged. A special code at the beginning indicates which set is engaged: three shift codes are also available for use within the bar code to indicate a change in the code set engaged, as required.

Interleaved2 of 5

Inerleaved2 of 5 bar coding is used mainly in the distribution industry. Two digits are encoded: one in the bars and one in the spaces.

Postnet

Postnet bar coding is used by the U.S. Post Office for sorting mail by automated equipment. It incorporates a coding system using five bars and four spaces for each digit.

48 Operation

hapter 4: Working with Software

This chapter covers the fundamentals of setting up commercial software packages for use with your printer. Be sure to read your software documentation carefully for more details.

Basic Terminology

Before we start, let’s examine a few terms with which you may not be familiar.

Printer Commands

If you’re using commercial software with an appropriate printer driver (see “Printer Drivers” below), the printer commands will normally be sent to the printer by your software and you won’t even need to think about them.

Printer commands are signals sent by your PC to the printer which guide and control its operation. Printer commands tell the printer what character pitch to use, what font to use, what margins to use, whether to use single or double spacing, when to engage/disengage double width or double height printing, etc.

Printer commands can be sent in decimal, ASCII, or hexadecimal form. The values (decimal/ASCII/hexadecimal) for each type of command depend on which emulation is active (see Appendix C for a listing of printer commands for each emulation).

With only a few exceptions, printer commands begin with the ESC character, decimal 27 (hexadecimal 1B), which serves as signal to the printer that what follows is to be interpreted as a command rather than just a string of characters. Some printer commands expect you supply a numerical value, representing tab stops, line spacing, etc.

ML720/721 Printer Handbook 49

Emulations

In order to eliminate hundreds of different sets of printer commands, most printers emulate, or imitate, one of several general printers; i.e., they accept all of that printer’s commands and behave as though they were the emulated printer.

Your printer has three emulations:

• IBM Proprinter III (factory default)

• Epson FX

• Oki Microline

Printer Drivers

Compatible Printer Drivers (DOS)

Many of the software packages you use will contain drivers 100% compatible with your printer. For older software, however, it may be necessary to select a driver that functions nearly the same as a driver specifically designed for your printer. This generally means that you will be selecting a driver that provides commands to access most, but not all of the available functions; however, the commands that are available will perform properly with your printer.

The table below summarizes the various drivers that will work with your printer. They are listed in order by decreasing compatibility as you go down the list: select one from as high up on the list as possible, based on what is available from among the drivers supplied with your software. If you don’t see one from near the top of the list, give the software manufacturer a call to see if they have added any drivers to those supplied when you purchased your software. Software manufacturers are constantly updating their lists of drivers to keep up with the printer market and they may very well have one which will give maximum compatibility with your printer.

50 Working with Software

IBM Proprinter Emulation Epson FX Emulation

OKI ML Emulation

Oki ML 520/1 IBM IBM Proprinter III IBM Proprinter II IBM Proprinter

Oki ML 520/1 Epson Epson FX 850/1050 Epson FX 86/286 Epson FX Epson EX800/1000

Oki Microline 520/521 Oki Microline 320/321 Oki Microline 292/293 Oki Microline 192/193 Oki Microline 182/183

Because there are some differences in characteristics such as speed or access to various features, you may wish to experiment with several different drivers. If you must select a driver that is not listed in the table, be sure to check it thoroughly for print features such as boldface, underline and changes in pitch. Don’t be surprised if boldfaced items are printed twice, underlines are misplaced, wide spaces are left between lines or the printer behaves chaotically (turn off the printer if the latter occurs). These are all characteristics of an incompatible driver selection.

Windows Printer Drivers

To use this printer on a Windows operating system, install the Windows printer driver, that is on the Printer Software CD-ROM provided with your printer, on your computer.

For information about which Windows systems are compatible with the printer drivers on the Printer Software CD-ROM and the installation procedure open the Readme file on the Printer Software CD-ROM.

ML720/721 Printer Handbook 51

52 Working with Software

hapter 5: Problem Solving,

Maintenance, & Service

This chapter provides solutions to some common printer problems and explains the routine maintenance procedures that will help keep your printer in tip-top operating condition. It also tells you how to order parts, consumables and accessories, and provides information on obtaining service for your printer. You will find your printer’s warranty at the back of this Printer Handbook.

Problem Solving

What if …

…nothing happens when I turn on the printer?

The printer may not be plugged in. Check the power cord connection to the outlet and to your printer. If you’re using a power strip, make sure it’s turned on. Check to be sure that the fuse hasn’t blown or that the circuit breaker hasn’t tripped.

…the printer doesn’t print when the computer sends data?

The printer may be deselected. If the SEL light is out, press the SEL button to select the printer.

The printer cable may not be securely connected. Check the cable to be sure that it is properly connected to both the PC and the printer.

If you have installed the serial I/F board, check to be sure that the board is firmly seated in the printer.

ML720/721 Printer Handbook 53

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

The printer driver you have engaged does not agree with the emulation selected for your printer.

To check the emulation selected, first make sure paper is loaded, then press the SEL and SHIFT buttons simultaneously to enter the MENU on your printer. Next, press the GROUP button: this will print the emulation selected.

If the emulation is not the one you want to use, press the SET button to change it to the one you want before exiting the MENU (to exit, press SEL and SHIFT buttons).

If the emulation is correct, check your software documentation on how to select a printer driver, then check to be sure that you have selected one of the drivers listed for that emulation on page 51). The closer the driver is to the top of the list, the more compatible it will be with your printer. If your software doesn’t have any of the indicated drivers available, check with the software manufacturer to see if they have added any additional drivers since you purchased your software.

If you have embedded any printer commands in your software, check to be sure that you entered them correctly.

…I’ve installed a brand new ribbon and the printing is smeared and streaked?

The plastic shield on the ribbon is either loose or missing. The shield must be left on the ribbon when you are installing the cartridge. To remedy this situation, move the printhead to the center of the platen (careful – printhead may be HOT!) and lift off the ribbon cartridge. Check the ribbon shield. If it’s loose, secure it in place properly. If it’s missing, locate it and reinstall it.

Problem: Ink smears on the paper when I print narrow columns.

Solution: This may be caused by excessive printhead travel from the centering posi-

tion. Enter the Menu and set the Centering Position to MODE 1 (see Menu Mode in Section 3). For wide-carriage Model ML391T, if MODE1 doesn’t work, try setting the Centering Position to MODE2.

…there are dots missing in my printouts?

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

54 Ploblem Solving, Maintenance, & Service

… the Alarm light is on and the Character Pitch 15 light is flashing?

This indicates a paper loading error. To stop the flashing light, press the SEL button. Before trying to load paper in again, check to be sure that you have the paper lever in the correct position (BOT, TOP, REAR) for the path you’re using.

Caution!

If the paper lever is in the correct position and you’re using rear feed, lift up the paper separator and check to be sure that paper is properly on the tractors and has not jammed up somehow.

If the paper lever is in the correct position and you’re using the optional bottom-feed push tractor, check the bottom tractor unit to be sure that paper is properly on the tractors and has not jammed up before entering the printer.

Once the paper is correctly loaded, press and release the SEL button, then hold the SHIFT button and press the RESET (Character Pitch) button.

…I need to load paper, but the Alarm light is not on?

If the Alarm light is off, the printer thinks it has paper loaded. To correct this problem, press and release the SEL button, then hold the SHIFT button and press the RESET (Character Pitch) button. The Alarm light will come on and you’ll be able to load paper.

…my word processor files don’t print the way I have the MENU and front panel set?

Always turn the printer off before you turn the platen knob!

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 storing contains codes that reset the printer to a default set of features: otherwise the printer might accidentally print using features set for a previous job. These codes will override panel or MENU settings. To set your printer to ignore the reset code, enter the printer MENU (hold SHIFT button while pressing SEL/MENU button) and change the Reset Inhibit item (in the Set-Up group) to Yes. Please note that while this will stop the reset code from resetting your printer, other codes in the initialization string may still override the printer MENU and/ or front panel settings.

ML720/721 Printer Handbook 55

The I-Prime signal is sent over the parallel interface (pin 31) and will automatically override any settings you have made using the front panel buttons. To eliminate this problem, enter the program MENU (hold SHIFT button while pressing SEL/MENU button) and change the I-Prime item (in the Parallel I/F group) to Invalid.

…the Print Quality and Character Pitch buttons on the front panel won’t work?

The Operator Panel Function item on the printer MENU can be used to disable these buttons. 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.

…static electricity causes the paper to stick?

In cold, dry weather, static charges can build up on continuous-form paper. This can make the paper cling to the paper separator. If you have this problem during highvolume printing jobs, try moving the single sheet paper guides on the separator together so that the paper rests on the guides rather than on the separator itself.

Maintenance

This section explains how to change ribbons, clear paper jams and clean your printer.

Replacing the Ribbon Cartridge

When replacing the ribbon, be sure to use only ribbons specifically for use with MICROLINE 720/721 printers. For best results,use genuine OKI ribbons.

1. Turn printer off.

2. Disengage and swing open access cover.

Caution!

printhead: it may be hot!

56 Ploblem Solving, Maintenance, & Service

Be careful not to touch the

Center printhead

3. Slide ribbon cartridge along until it is centered on platen, being careful not to touch printhead.

Swing front end up to remove

Plastic shield facing platen

4. Swing front-end of cartridge up off printhead, then lift cartridge out and discard it.

5. Remove new ribbon cartridge from its packaging — do NOT remove clear

plastic ribbon shield!

6. Hold ribbon cartridge with knob facing up and exposed portion of ribbon facing platen. Place flat end on ribbon plate, fitting grooves over pins on plate.

ML720/721 Printer Handbook 57

7. Lower front end of cartridge over

printhead until it snaps into place. Turn knob in direction of arrow (clock-wise) to take up any slack in ribbon.

1 2 3

Knob

58 Ploblem Solving, Maintenance, & Service

Clearing Paper Jams

Caution!

Always turn the printer off before you turn the platen knob!

Rear Feed Jams

To clear a rear-feed paper jam:

1. Turn off printer

2. Turn platen knob to back paper out of printer. Remove any ripped pieces of paper.

3. Reload paper, turn printer back on and press FF/LOAD button.

If your paper keeps jamming, the chances are excellent that you have bits of paper stuck in the paper path. To eliminate this problem:

1. Turn off printer.

2. Use platen knob to back paper out of printer.

Remove Paper separator

3. Remove the paper separator.

ML720/721 Printer Handbook 59

Tractor covers

Remove pull-up roller assembly

4. Open tractor covers and remove paper from printer.

5. Open access cover and lift off pull-up roller assembly.

Note: Never attach or remove the pull-up roller

assembly when the paper separator is in the standing state.

6. Fold some single-sheet, continuousfeed paper over three times to produce page four sheets thick.

Quadruple-thick paper

tractor pins and close tractor covers.

8. Turn platen knob to draw quadruplethick paper around platen. This will bring jammed pieces of paper up and out so you can dispose of them.

9. Back quadruple-thick sheet out of printer using platen knob.

60 Ploblem Solving, Maintenance, & Service

7. Load this quadruple-thick sheet onto

Replace pull-up roller assembly

10.Replace pull-up roller assembly.

Note: When installing a pull-up roller assem-

bly, Shift the paper lever in agreement with the “Rear” mark before the installation.

11.Reload regular paper (open tractor covers, place paper on pins, close tractor covers).

Replace paper separator

12.Swing access cover and paper separator back into place.

13.Turn printer on and press FF/LOAD button.

ML720/721 Printer Handbook 61

Single Sheet Feed Jams

To remove jammed single sheets of paper (top feed):

1. Turn printer OFF.

2. Rotate platen knob to back paper out of carriage.

Lift off pull-up roller assembly

Button Feed Jams

If bottom-feed paper jams:

Lift off pull-up roller assembly

3. If necessary, open access cover and lift off pull-up roller assembly to provide access to remove any ripped pieces from around carriage.

1. Turn off printer and use platen knob to back paper out carefully.

2. Be sure to remove any shreds of paper from printer before reloading paper. (Open access cover and lift off pull-up roller assembly to provide access to carriage area.)

62 Ploblem Solving, Maintenance, & Service

Cleaning the Housing

You should clean the printer every six months (or after about 300 hours of operation). To do this:

1. Turn printer OFF and remove paper from path.

Remove pull-up roller assembly

2. Open access cover and remove pull-up roller assembly.

3. Use clean, dry cloth to dust area around carriage shaft and platen. Be sure to remove any loose particles of paper.

Note: The built-up of dust or paper powder in

the printer, which may be occurred by some environmental settings or media used, may cause a mulfunction, so execute cleaning according to how the printer is dirty.

4. Reinstall pull-up roller assembly and close access cover.

Note: When installing a pull-up roller assem-

bly, Shift the paper lever in agreement with the “Rear” mark before the installation.

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

ML720/721 Printer Handbook 63

Accessories

You can add even more flexibility to your printer by means of the following optional accessories.

Cut Sheet Feeder, Single-Bin and Dual-Bin

Mounts on the platen to provide continuous single-sheet paper feed. The bin will hold up to 100 sheets of standard, 20-lb paper. With cable for connection to printer.

Push Tractor, Bottom-Feed

Converts printer for feeding continuousform paper from the bottom. Use of bottom feed eliminates the curling which takes place as rear-feed paper moves around the platen. Bottom feed is ideal for card stock, thick multi-part forms, labels which could peel off and jam the unit if fed in from the rear, etc.

Includes tractor, support legs for printer, and metal tear bar.

64 Ploblem Solving, Maintenance, & Service

Pull Tractor, Top-Mount

Used for bottom-feed of labels or heavy card stock, or in conjunction with the rearfeed tractor to provide more precise paper control when you’re using multi-part forms. Includes cover for installation in place of access cover.

Roll Paper Stand

Adapts ML 720 printer for use with rolltype paper (not supplied). Not usable on ML 721.

Includes stand and support. With cable for connection to printer.

Serial Interface

Includes serial interface board and locking piece for installation in printer next to standard parallel interface. Without interface cable.

Note: The use of the locking piece to 720/721

should be impermissible due to the exclusiveness for other models.

ML720/721 Printer Handbook 65

Replacement Parts

Replacement Part

Access Cover, ML 720 Access Cover, ML 721 AC Cord Poll-up Roller Assembly, ML 720 Poll-up Roller Assembly, ML 721 Platen Knob Printhead Ribbon, Black

66 Ploblem Solving, Maintenance, & Service

ppendix A: Specifications

Print Method Impact dot matrix

Printhead 9 pins, 0.30 mm diameter with thermal protection

Print Speed

Mode Characters per Second (CPS)

High Speed Draft (HSD) 507 cps at 10 cpi Utility 380 cps at 10 cpi Near Letter Quality (NLQ) 95 cps at 10 cpi Super Speed Draft (SSD) 570 cps at 12 cpi

Characters per Line (CPL)

Setting ML720 ML721

10 cpi 80 cpl 136 cpl 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

Emulations Epson FX, IBM Proprinter , OKI Microline co-resident

Interface Standard: Centronics parallel, USB

Optional: RS-232C serial

Graphics Resolution:

Epson/IBM Single Density: 60 x 216 dpi

Emulations Double Density: 120 x 216 dpi

Quadruple Density: 240 x 216 dpi

MICROLINE Single Density: 60 x 72 dpi / 72 x 72 dpi

Emulations Double Density: 120 x 144 dpi / 144 x 144 dpi

Quadruple Density: 240 x 144 dpi / 288 x 144 dpi

ML720/721 Printer Handbook 67

Resident Font

Near Letter Quality Courier, Gothic Utility Gothic High Speed Draft Gothic Super Speed Draft Gothic Bar Code: Code 39, UPC A, UPC E, EAN 8, EAN 13, Inter-

leaved 2 of 5, Code 128, Postnet

Receive Buffer Size MAX 128K

Reliability

Mean Time Between 20,000 hours at 25% duty cycle and 35%

Failures (MTBR) Page density

Mean Time to Repair (MTTR) 15 minutes

Printhead life 200 million characters average in 10 cpi utility

mode at 25% duty and 35% page density

Ribbon Life 4 million characters (on average, 10 cpi utility)

68 Appendix A: Specifications

Paper Specifications

Width

Minimum 3” Maximum ML 720: 10”

ML 721: 16” Weight 12 to 24 lb. Thickness

Rear feed 0.014”(0.36 mm) Bottom feed 0.017”(0.44 mm)

Paper type Feed Width range

Cut sheets

Single-part continuous forms

Carbonless, multipart continuous form (orig. + 4 copies)

Interleaf, multipart continuous form (orig. + 4 copies)

Labels

Envelopes, single feed

Envelopes, continuous feed, non-overlap type

Card stock

Transparencies

Top only

Rear, Bottom

Bottom only

Top

Bottom only

Top only

Weight

14 to 24 lb.

12 to 24 lb.

9 to 11 lb.

10 to 12 lb paper, 9 lb carbon

N.A.

24 lb. max.

120 lb. max

ML720: 7.2" to 8.5" ML721: 7.2" to 14.3"

ML720: 3" to 10" ML721: 3" to 16"

6.5" to 9.5"

N.A.

8.5" x 11"

ML720/721 Printer Handbook 69

Dimensions (W x D x H)

ML 720: 15.7 x 13.6 x 6 inch (398 x 345 x 153 mm) ML 721: 21.7 x 13.6 x 6 inch (552 x 345 x 153 mm)

Weight

ML 720: 16.4 lb (7.5Kg) ML 721: 20.8 lb (9.5Kg)

Environmental Requirements

Operating Temperature: 41 to 95˚F (5 to 35˚C) Storage Temperature: 14 to 122˚F (-10 to +50˚C) Operating Humidity: 20 to 80% RH Storage Humidity: 5 to 95% RH

Electrical requirements 230 volts ac (+15%, -14%)

50/60 Hz (±2%)

Specifications subject to change without notice.

70 Appendix A: Specifications

ppendix B: Menu Selections

The menu selections for your printer are summarized below. Factory defaults are indicated in bold face italic. Explanations for each item follow the table.

The table below summarizes all possible menu settings available with your printer. Which of these you will actually see when you are working in the Menu depends on the active emulation and on the options installed.

Group Item Setting

Printer Control

Font

Symbol Sets

Rear Feed

Emulation Mode

Print Mode

DRAFT Mode Pitch Proportional Spacing Style Size

Character Set

Language Set

Zero Character Code Page

Line Spacing Form Tear-Off Skip Over Perforation Page Width* Page Length

IBM PPR, Epson FX, ML

Utilitity, NLQ Courier, NLQ Gothic,

DRAFT

HSD, SSD 10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi No, Yes Normal, Italics Single, Double

Set I, Set II (EPSON, IBM mode)

Slashed, Unslashed USA, Canada French, Multilingual, Portu-

gal, Norway, BRASCII, Abicomp, Multilingual 858 ISO 8859-15

6 LPI, 8 LPI Off, 500 ms, 1 sec, 2 sec No, Yes

13.6", 8",

11", 11 6", 7", 8", 8.5"

/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5",

ML720/721 Printer Handbook 71

Group Item Setting

Bottom Feed

Top Feed

Set-Up

Line Spacing Form Tear-Off Skip Over Perforation Page Width * Page Length

Line Spacing Form Tear-Off *

Bottom Margin Page Width * Page Length

Wait Time Page Length Control

Graphics 7 or 8 Bit Graphics *

Receive Buffer Size Paper Out Override Print Registration

7 or 8 Bits Data Word *

Operator Panel Function Reset Inhibit Print Suppress Effective Auto LF Auto CR CSF Bin Select Print DEL Code *

SI Select Pitch (10 CPI) * SI Select Pitch (12 CPI) * Time Out Print Auto Select Centering Position CSF Type * ESC SI Pitch *

Power Saving Power Save Time

6 LPI, 8 LPI Off, 500 ms, 1 sec, 2 sec No, Yes

13.6", 8"

11", 11

/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5",

6", 7", 8", 8.5"

6 LPI, 8 LPI Off, 500ms, 1 sec, 2 sec Valid, Invalid

13.6", 8" 11", 11 2/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"

1 sec, 2 sec, 500ms by Actual Page Length, by Menu Setting

Uni-directional, Bi-directional 8, 7

64K, 128K, 1 Line, 32K No, Yes 0, 0.05 mm Left, 0.10 mm Left, 0.15 mm Left,

0.20 mm Left, 0.25 mm Left, 0.25 mm Right,

0.25 mm Right, 0.15 mm Right, 0.10 mm Right,

0.05 mm Right

8, 7 Full Operation, Limited Operation No, Yes Yes, No No, Yes No, Yes Bin 1, Bin 2 No, Yes

17.1 CPI, 15 CPI

20 CPI, 12 CPI Valid, Invalid No, Yes DEFAULT, MODE 1, MODE 2 Wide, Narrow

17.1 CPI, 20 CPI Enable, Disable 5min, 10min, 15min, 30min, 60min

72 Appendix B: Menu Selections

Group Item Setting

Parallel I/F

Serial I/F *

CSF Bin 1 *

CSF Bin 2 *

I-Prime Pin 18 Auto Feed XT *

Bi-Direction

Parity Serial Data 7/8 Bits Protocol Diagnostic Test Busy Line Baud Rate

Buffer Print, Buffer Clear, Invalid +5V, Open Invalid, Valid Enable, Disable

None, Odd, Even 8 Bits, 7 Bits Ready/Busy, X/On/X-Off No, Yes SSD-, SSD+, DTR, RTS

19200 bps, 9600 bps, 4800 bps, 2400 bps,

1200 bps, 600bps, 300 bps DSR Signal DTR Signal Busy Time

Line Spacing Bottom Margin Page Width * Page Length

Valid, Invalid

Ready on Power Up, Ready on Select

200 ms, 1 sec.

6 LPI, 8 LPI

Valid, Invalid

13.6", 8"

11", 11

/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5",

6", 7", 8", 8.5"

Line Spacing Bottom Margin Page Length

6LPI, 8LPI

Valid, Invalid

11", 11

/3", 12", 14", 17", 5", 3", 3.5", 4", 5.5",

6", 7", 8", 8.5"

* ML 721 only *1Appears only when IBM Proprinter emulation is selected. *2Appears only when Microline emulation is selected. *3Appears only when Epson FX emulation is selected. *4Appears only when optional Cut Sheet Feeder Accessory is installed. *5Appears only when optional Serial Interface is installed. *6Applicable only when the Roll Paper Stand is installed.

ML720/721 Printer Handbook 73

Explanation of Menu Items

These explanations are in alphabetical sequence to make it easier to look them up. Many of the items will appear only with optional equipment installed, as noted below. You will find the items Line Spacing, Form Tear-Off, Skip Over Perforation and Page Length appearing several times in the menu (once for each paper path).

7 or 8 Bit Graphics. Choose 7 (factory default) or 8 bits. 7 or 8 Bit Data word. Choose 8 (factory default) or 7 bits.

Auto CR. IBM mode only. No (factory default) or Yes. Choose Yes to make your printer

automatically perform a carriage return when a LF is received at the end of the line.

Auto LF. No (factory default) or Yes. Change to Yes if your printer overprints. Keep this set to No if your software adds a line feed when a carriage is received at the end of a line. If your printout is consistently double spaced, set this item to No.

Auto Select. No (factory default) or Yes. Determines whether or not your printer will automatically be selected after you load in paper. With the factory default (No) engaged, the printer will be deselected so that you can set the Top of Form. If you always use the same Top of Form setting, change this setting to Yes so that you don’t have to press the SEL button to select the printer after loading paper.

Auto Feed XT. Epson mode only. Invalid (factory default) or Valid. 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: the Auto Feed XT item eliminates this potential problem. The factory setting causes the printer to ignore this signal; if your system uses pin 14 to control automatic line feed, change the setting to Valid.

Baud rate. Appears only if optional Serial Interface is installed. Range from 19,200 to 300 bps: factory setting, 9600 bps. This item sets the transmission rate for the system.

Bi-Direction. Enable (factory default) or Disable. Enables or disables the bi-directional transmission (PnP) in Nibble mode.

74 Appendix B: Menu Selections

Bottom Margin. Valid (factory default) or Invalid. Sets whether or not the printer will ignore the bottom margin setting. Change the setting to Invalid if you want printer to ignore the bottom margin setting. Be careful if you use this feature: it lets the printer continue printing when there’s no more paper, which can cause loss of data and may damage the printhead.

Busy Line. Appears only if optional Serial Interface is installed. SSD- (factory default), SSD+, DTR, RTS. 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. Appears only if optional Serial Interface is installed. 200 ms (factory default) or 1 sec. Sets the length of the busy signal when the Ready / Busy protocol (factory default) is engaged.

Centering Position. Used to limit printhead travel when printing narrow columns. Select Mode 1 for Model ML720; Select Mode 1 or Mode 2 for Model ML721.

Character Set. Choose IBM Set I (factory default) or IBM Set II. (EPSON, IBM mode)

Choose Standard, Line Graphics. (ML mode)

Code Page. Choose USA (factory default), Canada French, Multilingual, Portugal, Norway BRASCII, Abicomp.

CSF Bin Select. Appears only if optional Dual-Bin Cut Sheet Feeder is installed. Choose Bin 1 (factory default) or Bin 2.

CSF Type. Select Wide (default) or Narrow for CSF type.

Diagnostic Test. Appears only if optional Serial Interface is installed. No (factory de-

fault) or Yes. Select Yes if you want to perform a diagnostic test of the serial interface.

DRAFT Mode. Choose HSD or SSD for DRAFT font.

The selected font becomes effective when “DRAFT” is selected at the Print Mode selection.

ML720/721 Printer Handbook 75

DSR Signal. Applies only when optional Interface is installed. Valid (factory default) or Invalid. Used with Ready / Busy protocol to select the way your system handles the DSR Signal.

DTR Signal. Applies only when optional Serial Interface is installed. Ready on Power Up (factory default) or Ready on Select. Change to Ready on Select if the DTR signal is required when the printer is selected; leave as Ready on Power Up if DTR signal is required when printer is turned on.

Emulation Mode. IBM PPR (factory default), Epson FX, or ML. Selects the Printer command set you want your printer to use: IBM Proprinter III, Epson FX, or OKI Microline.

ESC SI Pitch. Designate the function of ESC SI command to 17 cpi setting (default) or 20 cpi setting.

Form Tear-Off. Off (factory default), 500 ms, 1 sec, or 2 sec. Form Tear-Off advances the paper to the perforation so that you can tear off a sheet of continuous-forms paper. You can turn this feature off, or you can select a time interval for the printer to wait before advancing the paper.

Graphics. Bi-directional (factory default) or Uni-directional. Bi-directional graphics print faster than uni-directional graphics, but uni-directional graphics have better print registration. Bi-directional graphics printing can be optimized by adjusting the Print Registration setting in the Menu.

I-Prime. Buffer Print (factory default), Buffer Clear, or Invalid. Determines how the printer will react to the I-Prime signal from your software. With the factory default engaged, when the printer receives the I-Prime signal, it will print out the contents of the buffer before resetting. Change the setting to Buffer Clear if you wish the printer to dump the contents of its buffer immediately upon receiving the I-Prime signal. Change to Invalid if you want the printer to ignore your software’s I-Prime signal. This will permit you 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. American (factory default), French, German, British, Danish I, Swedish, Italian, Spanish I, Japanese, Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, or Publisher. Replaces certain symbols with special characters used in the respective foreign languages.

76 Appendix B: Menu Selections

Line Spacing. 6 lpi (factory default) or 8 lpi. Choose 8 lines per inch for tighter line spacing, to get more lines per page.

Operator Panel Function. Full Operation (factory default) or Limited Operation. Change to Limited Operation to deactivate the PRINT QUARITY and CHARACTER PITCH buttons on the control panel. Then you can control these features only through your software. This can be useful when several people are using the printer and you don’t want its settings changed.

Important!

This feature also prevents access to the Menu. To access the Menu, turn

the printer off, then hold down the SEL key while turning on the printer.

Page Length. 11”, 11

/3”, 12”, 14”, 17”, 5”, 3”, 3.5”, 4”, 5.5”, 6”, 7”, 8”, 8.5”. Selects the length of the paper you’ll be using in your printer. This enables the printer to keep track of the initial printing position on each page (Top of Form).

Page Length Control. Choose page length control system for SASF mode.

by Actual Page Length .....Control page length by actual physical page length.

by Menu Setting ................ Control page length by logical page length.

Page Width. Appears in Menu for wide-carriage model only. Choose a page width of

13.6” or 8”.

Paper out Override. No (factory default) or Yes. The paper out detector senses when less than an inch of paper remains in the printer and stops printing at that point. Changing this setting to Yes overrides the detector so you can print closer to the bottom of the page if you’re using single sheets. Be careful if you use this feature: it lets the printer continue printing when there’s no more paper, which can cause loss of data and may damage the printhead.

Parity. Appears only if optional Serial Interface is installed. None (factory default), Odd, or Even. Selects the type of parity your system uses.

Pin 18. +5V (factory default) or Open. Sets the signal on pin 18.

Pitch. 10 cpi (factory default), 12 cpi, 15 cpi, 17.1 cpi, or 20 cpi. Selects the character

width measured in characters per inch (cpi).

Power Save Time. 5min (factory default), 10min, 15min, 30min, 60min. Sets the time until the printer enters the power save mode. This setting is effective when the power saving option is enabled.

ML720/721 Printer Handbook 77

Power Saving. Enable (factory default) or Disable. Enables or disables the power save mode. When the power save mode is enabled, the printer enters the power save mode when the time set in the Power Save Time option elapses while the printer is idle. The SEL LED flashes and other LED turn off when the printer enters the power save mode.

Print DEL Code. Microline mode only. Choose No (factory default) or Yes.

Print Mode. Utility (factory default) NLQ Courier, NLQ Gothic, DRAFT. Choose one

of the NLQ fonts for letter quality printing; choose utility for higher-speed draft printing. Choose DRAFT for HSD or SSD. It prints either of HSD or SSD which is selected at the DRAFT MODE.

Print Registration. 0 (factory default), 0.05 mm Left, 0.15 mm Left, 0.20 mm Left, 0.25 mm Left, 0.25 mm Right, 0.20 mm Right, 0.15 mm Right, 0.10 mm Right, or 0.05 mm Right. Change the setting as required to obtain the best registration for bi-directional printing.

Print Suppress Effective. Yes (factory default) or No. Enables/disables print suppress command. The factory default enables the print suppress command: the printer will ignore all data it receives after it accepts the print suppress command. Change to No to cause your printer to ignore the print suppress command.

Proportional Spacing. No (factory default) or Yes. Change to Yes to engage proportional spacing of characters.

Protocol. Appears only if optional Serial Interface is installed. Selects the type of protocol your system uses: Ready/Busy (factory default) or X-On/X-Off.

Receive Buffer Size. 64K (factory default), 1 Line, 32K, or 128K. Selects the amount of memory devoted to holding received data. Choosing 1 Line will tie up your computer during printing, but if you about the print job the printer will stop printing much sooner.

Reset Inhibit. No (factory default) or Yes. Change to Yes if you want your printer to ignore the reset command sent by software. This will prevent your software reset command from changing the settings you have made through the front panel controls or through printer commands. If you engage this feature, don’t forget that it will also prevent your software from clearing out existing settings when you finish printing one document and switch to another.

78 Appendix B: Menu Selections

Serial Data 7/8 Bits. Appears only if optional Serial Interface is installed. 8 Bits (factory default) or 7 Bits. Change to 7 bits if your system uses a 7-bit data format.

SI Select Pitch (10 CPI). IBM mode only. 17.1 CPI (factory default) or 15 CPI. Sets what pitch (17.1 or 15 characters per inch) will be engaged when the printer control panel is set for 10 cpi and the SI command is received.

SI Select Pitch (12 CPI). IBM mode only. 20 CPI (factory default) or 12 CPI. Sets what pitch (20 or 12 characters per inch) will be engaged when the printer control panel is set for 12 cpi and the SI command is received.

Size. Choose Single (factory default) or Double width and height printing.

Skip Over Perforation. No (factory default) or Yes. Change to Yes if you want the

printer to advance automatically to the next page when it comes within one inch of the bottom of the page. If your software has its own page formatting controls, keep this item set to No to avoid interface.

Style. Choose Normal (factory default) or Italics.

Time Out Print. Valid (factory default) or Invalid. When printing, if the printer doesn’t

receive any data, a line feed, or a form feed signal for awhile, it will automatically dump out what’s in the print buffer. If your software spends a long time prossing between feeding portions of data to the printer, you should change the setting to Invalid to keep your printer from inadvertently dumping the received data while it’s waiting for more.

Wait Time. 500 ms, 1 sec (factory default), or 2 sec. Sets the amount of the printer will wait for more data before jumping from the print position up to the form tear off position.

Zero Character. Slashed (factory default) or Unslashed. The factory default will cause a slash to appear in zeros to distinguish them from the capital letter O. To disengage the slashed zero, change this to Unslashed.

ML720/721 Printer Handbook 79

80 Appendix B: Menu Selections

ppendix C: Printer Commands

This appendix contains a listing of the printer commands for the IBM proprinter , Epson FX, and OKI MICROLINE emulations, grouped by function.

IBM Proprinter Printer Commands

IBM Function ASCII Code

Bar Code Commands

Select Bar Code Type

and Size Print Bar Code Data Print Postnet Bar Code

Select Bar Code Type Print Bar Code

Character Sets

Select IBM Character Set I Select IBM Character Set

Print from IBM

Character Set III

Print One Character from

IBM Character Set III

Select International

Character Set *

Select Code Page

Character Size/Spacing

Select 10 cpi Pitch Select 12 cpi Pitch Select 15 cpi Pitch * Select 20 cpi Pitch * Set Compressed Pitch Superscript Printing On Subscript Printing On Super script/Subscript

ESC DLE A m n1 n ESC DLE B m n [data]

ESC DLE C n [data]

Data

ESC [ f L Lv Hv P ESC [ f Ln Hn DATA

ESC 7 ESC 6

ESC \ L ESC n ESC ! n ESC [ TLn Hn 0 0 Hcp Lcp

DC2 ESC : ESC g ESC SI SI ESC S 1 ESC S 0 ESC T

n Hn Pk Pm Ps

n Hn

Decimal Code

27 16 65 m n1 n

27 16 66 m n [data] 27 16 67 n [data]

27 91 102 L Pm Ps Lv Hv P 27 91 112 Ln Hn DATA

27 55 27 54

27 92 L 27 94 n 27 33 n 27 91 84 Ln Hn 0 0

Hcp Lcp 0

18 27 58 27 103 27 15 15 27 83 1 27 83 0 27 84

n Hn

n Hn Pk

Hexadecimal Code

1B 10 41 m n1 n 1B 10 42 m n [data]

1B 10 43 n [data] 1B 5B 66 L

Pm Ps Lv Hv P 1B 5B 70 Ln Hn DATA

1B 37 1B 36

1B 5C L 1B 5E n 1B 21 n 1B 5B 54 Ln Hn 0 0

Hcp Lcp 0

12 1B 3A 1B 67 1B 0F 0F 1B 53 01 1B 53 00 1B 54

n Hn Pk

n Hn

ML720/721 Printer Handbook 81

IBM Function ASCII Code

Character Size/Spacing

(cont.)

Start Double Width

Printing Line by Line

End Double Width

DC4

Printing Line by Line

Double Width Printing

ESC W 1

Double Width Printing

ESC W 0

Off

Double Width and/or

ESC [ @ L

Height Printing On Proportional Spacing On Proportional Spacing Off Set Intercharacter

ESC P1 ESC P0 ESC Vn

Spacing *

Character Style

HSD Print Mode On Select Font Italics On Italics Off Emphasized Printing On Emphasized Printing Off Enhanced Printing On Enhanced Printing Off Underline On Underline Off Overscore On Overscore Off Select font by Pitch and

ESC # 0 ESC I n ESC % G ESC % H ESC E ESC F ESC G ESC H ESC - 1 ESC - 0 ESC 1 ESC 0 ESC DEL F Pn0 Pn Lp H

Point

ESC [ I Ln Hn Hfid Lfid

Select Font Select Print Quality

Hfwd Lfwd fa Nul Hc L ESC [ d Ln Hn P

n Hn m1

Decimal Code

14 20 27 87 1 27 87 0 27 91 64 Ln Hn m1

27 80 1 27 80 0 27 86 n

27 35 48 27 73 n 27 37 71 27 37 72 27 69 27 70 27 71 27 72 27 45 1 27 45 0 27 95 1 27 95 0 27 16 70 Pn0 Pn Lp

27 91 73 Ln Hn Hfid Lfid Hfwd Lfwd fa

Nul Hc L 27 91 100 Ln Hn P

Hexadecimal Code

0E 14 1B 57 1 1B 57 00 1B 5B 40 Ln Hn m1

1B 50 01 1B 50 00 1B 56 n

1B 23 30 1B 49 n 1B 25 47 1B 25 48 1B 45 1B 46 1B 47 1B 48 1B 2D 01 1B 2D 00 1B 5F 01 1B 5F 00 1B 10 46 Pn0 Pn Lp H

1B 5B 49 Ln Hn Hfid Lfid Hfwd Lfwd fa

Nul Hc L 1B 5B 64 Ln Hn P

Custom Characters

Down Line Load

Characters

Copy ROM Character Set

ESC = c1 c2 m n a1 a2 d1

ESC $

27 61c1 c2 m n a1 a2 d1 d

27 36

1B 3D c1 c2 m n a1 a2 d1 d

1B 24

to RAM Character Set *

Cut-Sheet Feeder Control

Insert/Eject Paper *

ESC EM n

27 25 n

1B 19 n

82 Appendix C: Priner Commands

IBM Function ASCII Code

Graphics

Single Density Graphics Double Density Graphics Double Speed/Double

ESC K L ESC L L ESC Y L

Density Graphics

Quadruple Density

ESC Z Ln Hn [data]

Graphics

Horizontal Control

Backspace Carriage Return Margin Setting, Left &

BS CR ESC X n m

Right Horizontal Tab Set Horizontal Tab Clear Horizontal Tab

HT ESC D n ESC D 0 0

Settings Set 4-column Tabulation * Set Print Position *

ESC % B n1 n ESC DLE @ Pn A1 A2 P1

P2 P3 P Set Relative Dot Position * Uni-directional Print On Uni-directional Print Off Set Relative Print Position

ESC | Ln H

ESC U 1

ESC U 0

ESC d Ln H

n Hn n Hn n Hn

1 n2

[data]

nk 0

2 n3 n4

Decimal Code

27 75 Ln Hn [data] 27 76 L 27 89 L

n Hn n Hn

[data] [data]

27 90 Ln Hn [data]

8 13 27 88 n m

1 n2

nk 0

27 68 n 27 68 0 0

27 37 66 n1 n

2 n3 n4

27 16 64 Pn A1 A2 P1 P2 P3 P 27 124 Ln H

27 85 1 27 85 0 27 100 Ln H

Hexadecimal Code

1B 4B Ln Hn [data] 1B 4C L 1B 59 L

n Hn

[data]

1B 5A Ln Hn [data]

08 0D 1B 58 n m

1 n2

nk 0

1B 44 n 1B 44 0 0

1B 25 42 n1 n

2 n3 n4

1B 10 40 Pn A1 A2 P1 P2 P3 P

1B 7C Ln H

1B 55 1 1B 55 00 1B 64 Ln H

Vertical Control

Page Length, Set in n

ESC C 0 n

27 67 0 n

1B 43 00 n

Inches Page Length, Set in Lines Skip Over Perforation On Skip Over Perforation Off Set Top of Form at

ESC C n ESC N n ESC O ESC 4

27 67 n 27 78 n 27 79 27 52

1B 43 n 1B 4E n 1B 4F 1B 34

Current Position Form Feed Line Feed

Perform Perform n/

" Line Feed

216

" Line Feed

144

Auto Line Feed On Auto Line Feed Off Reverse Line Feed Set Line Spacing to 7/72" Set Line Spacing to 1/8"

FF LF ESC J n ESC % 5 n ESC 5 1 ESC 5 0 ESC ] ESC 1 ESC 0

12 10 27 74 n 27 37 53 n 27 53 1 27 53 0 27 93 27 49 27 48

0C 0A 1B 4A n 1B 25 35 n 1B 35 01 1B 35 00 1B 5D 1B 31 1B 30

ML720/721 Printer Handbook 83

IBM Function ASCII Code

Vertical Control (cont.)

Set Line Spacing to n/ Set Line Spacing to 7/ Set Line Spacing to n/72" Line feed compound

command

Perform Line Feed Set by

ESC 3 n

216

" *

ESC % 9 n

144

ESC A n ESC DLE H Pno A1 A2 P1 P2 P3 ESC 2

ESC A n Command

Vertical Tab Set Vertical Tab Reset Vertical Tab to

VT ESC B n1 n2 nk 0 ESC R

Defaults

Miscellaneous

Cancel Change Emulation * Paper-Out Sensor On Paper-Out Sensor Off Print Suppress Mode On,

CAN ESC { n ESC 8 ESC 9 ESC Q STX

ML 320 Turbo

Print Suppress Mode On,

ESC Q STX

ML 321 Turbo

Print Suppress Mode Off

DC1

(either Model)

Set Initial Conditions

Incremental print mode

ESC [ K Ln Hn Init Id a1 a

ESC i n

On, Off Software I-Prime * Stop Printing

ESC } 0 ESC j

Decimal Code

27 51 n 27 35 57 n 27 65 n 27 16 72 Pno A1 A2 P1 P2 P3 27 50

11 27 66 n1 n2 nk 0 27 82

24 27 123 n 27 56 27 57 27 81 2

27 81 22

27 91 75 Ln Hn Init

Id a1 a

27 105 n

27 125 0 27 106

Hexadecimal Code

1B 33 n 1B 25 39 n 1B 41 n 1B 10 48 Pno A1 A2 P1 P2 P3 1B 32

0B 1B 42 n1 n2 nk 0 1B 52

18 1B 7B n 1B 38 1B 39 1B 51 02

1B 51 16

1B 5B 4BLn Hn Init Id a1 a

1B 69 n

1B 7D 00

* OKI-Unique command

84 Appendix C: Priner Commands

Epson FX Printer Commands

Epson Function ASCII Code

Bar Code Commands

Select Bar Code Type

ESC DLE A m n1 n

and Size * Print Bar Code Data * Print Postnet Bar Code

ESC DLE B m n [data] ESC DLE C n [data]

Data *

Print Bar Code

ESC ( B Ln Hn Pk Pm Ps Lv Hv Pc DATA

Character Sets

Select International

ESC R n

Character Set

Select Epson Character

ESC t n

Set

Permit Printing of Upper

ESC 6 or ESC I 1

Range Control Codes

Cancel Printing of Upper

ESC 7 or ESC I 0

Range Control Codes

Character table selection

ESC ( t Ln Hn Pn1 Pn2 Pn3

Character Size/Spacing

Select 10 cpi Pitch Select 12 cpi Pitch Select 15 cpi Pitch Select 20 cpi Pitch Cancel 20 cpi Pitch Set Compressed Pitch Superscript Printing On Subscript Printing On Superscript/Subscript

ESC P ESC M ESC g ESC SI DC2 SI ESC S 1 ESC S 0 ESC T

Printing Off

Begin Double Width

ESC SO

Printing Line by Line

End Double Width

DC 4

Printing Line by Line

Double Width Printing

ESC W 1

Double Width Printing

ESC W 0

Off

Decimal Code

27 16 65 m n1 n

27 16 66 m n [data] 27 16 67 n [data]

27 40 66 Ln Hn Pk Pm Ps Lv Hv Pc DATA

27 82 n

27 116 n

27 54 or 27 73 1

27 55 or 27 73 0

27 40 116 Ln H n Pn1 Pn2 Pn3

27 80 27 77 27 103 27 15 18 15 27 83 1 27 83 0 27 84

27 14

27 87 1

27 87 0

Hexadecimal Code

1B 10 41 m n1 n

1B 10 42 m n [data] 1B 10 43 n [data]

1B 28 42 Ln Hn Pk Pm Ps Lv Hv Pc DATA

1B 52 n

1B 74 n

1B 36 or 1B 49 01

1B 37 or 1B 49 00

1B 28 74 Ln Hn Pn1 Pn2 Pn3

1B 50 1B 4D 1B 67 1B 0F 12 0F 1B 53 01 1B 53 00 1B 54

1B 0E

1B 57 01

1B 57 00

ML720/721 Printer Handbook 85

Epson Function ASCII Code

Character Size/Spacing

(cont.)

Double Height Printing On Proportional Spacing On Proportional Spacing Off Set Intercharacter Spacing

ESC w n ESC p 1 ESC p 0 ESC SP n

Character Style

Select HSD Print Mode * Select Utility or NLQ

ESC ( n ESC x n

Print Mode Select Draft Font Select font by Pitch and

ESC y Pn ESC X Pn Lp Hp

Point Select NLQ Type Composite Command Italics On Italics Off Emphasized Printing On Emphasized Printing Off Enhanced Printing On Enhanced Printing Off Underline On Underline Off

ESC k n ESC ! n ESC 4 ESC 5 ESC E ESC F ESC G ESC H ESC - 1 ESC - 0

Decimal Code

27 119 n 27 112 1 27 112 0 27 32 n

27 40 n 27 120 n

27 40 85 Pn 27 88 Pn Lp Hp

27 107 n 27 33 n 27 52 27 53 27 69 27 70 27 71 27 72 27 45 1 27 45 0

Hexadecimal Code

1B 77 n 1B 70 01 1B 70 00 1B 20 n

1B 28 n 1B 78 n

1B 28 55 Pn 1B 58 Pn Lp Hp

1B 6B n 1B 21 n 1B 34 1B 35 1B 45 1B 46 1B 47 1B 48 1B 2D 01 1B 2D 00

Custom Characters

Down Line Load Custom

ESC & 0 n

1 n2

a [data]

27 38 0 n1 n2 a [data]

1B 26 00 n1 n2 a [data]

Characters

Copy ROM Character Set

ESC : 0 n 0

27 58 0 n 0

1B 3A 0 n 0

to RAM Character Set Custom Character Set On Custom Character Set Off

ESC % 0 ESC % 1

27 37 0 27 37 1

1B 25 00 1B 25 01

Cut Sheet Feeder Control

Insert/Eject Paper

ESC EM n

27 25 n

1B 19 n

Graphics

Single Density Graphics Double Density Graphics Double Speed/Double

ESC K L n Hn [data] ESC L L n Hn [data] ESC Y L n Hn [data]

27 75 L n Hn [data] 27 76 L n Hn [data] 27 89 L n Hn [data]

1B 4B L n Hn [data] 1B 4C L n Hn [data] 1B 59 L n Hn [data]

Density Graphics

Quadruple Density

ESC Z L n Hn [data]

27 90 L n Hn [data]

1B 5A L n Hn [data]

Graphics

86 Appendix C: Priner Commands

Epson Function ASCII Code

Graphics (cont.)

Graphics Select/Print Reassign Graphics Select 9-pin Graphics

ESC * m Ln Hn [data] ESC ? m n ESC m Ln Hn [data]

Printing

Horizontal Control

Backspace Carriage Return Margin Setting, Left Margin Setting, Right Horizontal Tab Set Horizontal Tab Clear Horizontal Tab

BS CR ESC l n ESC Q n HT ESC D n1 n2 nk 0 ESC D 0 0

Settings

Set Print Position

ESC DLE @ Pn A1 A2 P1

P2 P3 P Set Absolute Dot Position Set Relative Dot Position Uni-directional Print On Uni-directional Print Off Print Uni-directional for

ESC $ Ln H

ESC \ Ln H

ESC U 1

ESC U 0

ESC <

One Line

Decimal Code

27 42 m Ln Hn [data] 27 63 m n 27 94 m Ln Hn [data]

8 13 27 108 n 27 81 n 9 27 68 n1 n2 nk 0 27 68 0 0

27 16 64 Pn A1 A2

P1 P2 P3 P 27 36 Ln H 27 92 Ln H

n n

27 85 1 27 85 0 27 60

Hexadecimal Code

1B 2A m Ln Hn [data] 1B 3F m n 1B 5E m Ln Hn [data]

08 0D 1B 6C n 1B 51 n 09 1B 44 n1 n2 nk 00 1B 44 00 00

1B 10 40 Pn A1 A2 P1 P2 P3 P

1B 24 Ln H 1B 5C Ln H

1B 55 01 1B 55 00 1B 3C

Vertical Control

Page Length, Set in n

ESC C 0 n

27 67 0 n

1B 43 00 n

Inches Page Length, Set in Lines Skip Over Perforation Set Skip Over Perforation

ESC C n ESC N n ESC O

27 67 n 27 78 n 27 79

1B 43 n 1B 4E n 1B 4F

Reset to Default Form Feed Line Feed Perform n/ Perform n/

" Line Feed

216

" Line Feed *

144

n/216" Reverse Line Feed Set Line Spacing to 1/6" Set Line Spacing to 1/8" Set Line Spacing to 7/72" Set Line Spacing to n/72" Set Line Spacing to n/

144

FF LF ESC J n ESC % 5 n ESC j n ESC 2 ESC 0 ESC 1 ESC A n

" *

ESC % 9 n

12 10 27 74 n 27 37 53 n 27 106 n 27 50 27 48 27 49 27 65 n 27 37 57 n

0C 0A 1B 4A n 1B 25 35 n 1B 6A n 1B 32 1B 30 1B 31 1B 41 n 1B 25 39 n

ML720/721 Printer Handbook 87

Epson Function ASCII Code

Decimal Code

Hexadecimal Code

Vertical Control (cont.)

Set Line Spacing to

Vertical Tab Set Vertical Tab Stops Line feed compound

command

Reset Vertical Tab to

Defaults

Set Vertical Format Unit

(VFU) Set Vertical Tab Channel Set Basic Unit Set Page Length in

Defined Unit

Set Page Format

Miscellaneous

Cancel Change Emulation * Delete One Character Initialize Printer Half-Speed Printing On Half-Speed Printing Off Paper-Out Sensor On * Paper-Out Sensor Off * Print Suppress Mode On Print Suppress Mode Off Set Most Significant Bit to

Set Most Significant Bit to Incremental print mode

On, Off

Cancel Most Significant

Bit Control

Software I-Prime *

ESC 3 n

216

VT ESC B n

1 n2

ESC DLE H Pno A1 A2 P1 P2 P3 ESC B 0

ESC b m n ESC/n

ESC ( U Ln Hn Pn ESC ( C Ln Hn Lp Hp

ESC ( c Ln Hn Lt Ht Lb Hb

CAN ESC { n DEL ESC @ ESC s 1 ESC s 0 ESC 9 ESC 8 DC3 DC1 ESC =

Zero

ESC >

One

ESC i n ESC # ESC } 0

nk 0

1 n2

nk 0

27 51 n 11 27 66 n

1 n2

nk 0 27 16 72 Pno A1 A2 P1 P2 P3 27 66 0

27 98 m n

1 n2

nk 0 27 47 n 27 40 85 Ln Hn Pn 27 40 67 C Ln Hn Lp Hp 27 40 99 Ln Hn Lt Ht Lb Hb

24 27 123 n 127 27 64 27 115 1 27 115 0 27 57 27 56 19 17 27 61

27 62 27 105 n 27 35 27 125 0

1B 33 n 0B 1B 42 n

1 n2

nk 00 1B 10 48 Pno A1 A2 P1 P2 P3 1B 42 00

1B 62 m n

1 n2

nk 0

1B 2Fn 1B 28 55 Ln Hn Pn 1B 28 43 C Ln Hn Lp Hp 1B 28 63 Ln Hn Lt Ht Lb Hb

18 1B 7B n 7F 1B 40 1B 73 0 1B 73 00 1B 39 1B 38 13 11 1B 3D

1B 3E 1B 69 n 1B 23 1B 7D 00

Justification

Left Justification Center Justification Right Justification Within Line Justification

ESC a 0 ESC a 1 ESC a 2 ESC a 3

27 97 0 27 97 1 27 97 2 27 97 3

1B 61 00 1B 61 01 1B 61 02 1B 61 03

* OKI-Unique Command

88 Appendix C: Priner Commands

OKI Microline (ML) Printer Commands

Microline Function ASCII Code

Bar Code Commands

Select Bar Code Type

ESC DLE A m n1 n

and Size Print Bar Code Data Print Postnet Bar Code

ESC DLE B n [data] ESC DLE C n [data]

Data

Character Sets

Select Standard Character

ESC ! 0

Set

Select Line Character Set

ESC ! 2 (comparable to IBM Set 2) Block character set Select International

ESC ! 1

ESC ! n

Character Set

Select Code Page

ESC [ T Ln Hn 0 0 Hcp

Lcp 0

Character Size/Spacing

Select 10 cpi Pitch Select 12 cpi Pitch Select 15 cpi Pitch Select 17.1 cpi Pitch Select 20 cpi Pitch Superscript Printing On Superscript Printing Off Subscript Printing On Subscript Printing Off Double Width Printing Double Height Printing

ESC g

ESC # 3

ESC J

ESC K

ESC L

ESC M

ESC US 1

Double Height Printing

ESC US 0

Off Select Print Mode Proportional Spacing On Proportional Spacing Off Set Intercharacter Spacing

ESC & n1 n2 n3 n4 : ESC Y ESC Z ESC N n

Decimal Code

27 16 65 m n1 n

27 16 66 n [data] 27 16 67 n [data]

27 33 48

27 33 50

27 33 49 27 33 n

27 91 84 Ln Hn 0 0 Hcp Lcp 0

30 28 27 103 29 27 35 51 27 74 27 75 27 76 27 77 31 27 31 49

27 31 48

27 38 n1 n2 n3 n4 58 27 89 27 90 27 78 n

Hexadecimal Code

1B 10 41 m n1 n

1B 10 42 n [data] 1B 10 43 n [data]

1B 21 30

1B 21 32

1B 21 31 1B 21 n

1B 5B 54 Ln Hn 0 0 Hcp Lcp 0

1E 1C 1B 67 1D 1B 23 33 1B 4A 1B 4B 1B 4C 1B 4D 1F 1B 1F 31

1B 1F 30

1B 26 n1 n2 n3 n4 3A 1B 59 1B 5A 1B 4E n

ML720/721 Printer Handbook 89

Microline Function ASCII Code

Character Style

HSD Print Mode On Select Utility Print Mode Select NLQ Courier Font Select NLQ Gothic Font Select Font by Pitch and

Italics On Italics Off Emphasized Printing On Enhanced Printing On Emphasized and

Point

ESC # 0 ESC 0 ESC 1 ESC 3 ESC DLE F Pn Hp ESC ! / ESC ! * ESC T ESC H ESC I

Enhanced Printing Off Underline On Underline Off

ESC C ESC D

Custom Characters

Copy ROM Character Set

ESC $

to RAM Character Set

Download Custom

ESC % A m n1 n

Ascender Characters

Download Custom

ESC % D m n1 n

Descender Characters

Select DLL Utility

ESC 2

Character Font

Select Down Line Load

ESC 7

NLQ Character Font

Pn Lp

Decimal Code

27 35 48 27 48 27 49 27 51 27 16 70 Pn0 Pn Lp Hp 27 33 47 27 33 42 27 84 27 72 27 73

27 67 27 68

27 36

27 37 65 m n1 n

27 37 68 m n1 n

27 50

27 55

Hexadecimal Code

1B 23 30 1B 30 1B 31 1B 33 1B 10 46 Pn0 Pn Lp Hp 1B 21 2F 1B 21 2A 1B 54 1B 48 1B 49

1B 43 1B 44

1B 24

1B 25 41 m n1 n

1B 25 44 m n1 n

1B 32

1B 37

Cut Sheet Feeder Control

Cut Sheet Feeder Insert

ESC S

27 83

1B 53

Sheet

Cut Sheet Feeder Sheet

ESC V

27 86

1B 56

Eject

Cut Sheet Feeder Bin 1 or

ESC EM n

27 25 n

1B 19 n

Bin 2 Selection

Graphics

Single Density Graphics Double Density Graphics Double Speed/Quadruple

ESC P or ESC Q ESC R ESC # Q

27 80 or 27 81 27 82 27 35 81

1B 50 or 1B 51 1B 52 1B 23 51

Density Graphics

90 Appendix C: Priner Commands

Microline Function ASCII Code

Graphics (cont.)

Graphics Mode Selection Graphics Print Mode

ESC * n1 n2 : ETX

Selection

Horizontal Control

Backspace Carriage Return Horizontal Tab Margin Setting, Left Margin Setting, Right Move to the Left Move to the Right Set Print Position Set Multiple Print

Positions

Set Horizontal Tab by

BS CR HT ESC % C n1 n2 n ESC % R n1 n2 n3 n ESC % F n1 n2 n3 n ESC % E n1 n2 n3 n ESC % B n1 n2 n3 n ESC DEL @ Pn a1 a2 P1 P2 P3 P

ESC HT x y z CR

Characters

Set Horizontal Tab by

ESC HTX x y z w CR

Dot Columns

Clear Horizontal Tab

ESC HT CR

Settings Uni-directional Print On Uni-directional Print Off

ESC ESC =

Decimal Code

27 42 n1 n2 58 3

8 13 9

4 4 4 4

27 37 67 n1 n2 n 27 37 82 n1 n2 n3 n 27 37 70 n1 n2 n3 n 27 37 69 n1 n2 n3 n 27 37 66 n1 n2 n3 n 27 16 64 Pn a1 a2 P1 P2 P3 P

27 9 x y z 13

27 3 x y z w 13

27 9 13

27 45 27 61

Hexadecimal Code

1B 2A n1 n2 3A 03

08 0D 09 1B 25 43 n1 n2 n

1B 25 52 n1 n2 n3 n

1B 25 46 n1 n2 n3 n

1B 25 45 n1 n2 n3 n

1B 25 42 n1 n2 n3 n

1B 10 40 Pn a1 a2 P1 P2 P3 P 1B 09 x y z 0D

1B 03 x y z w 0D

1B 09 0D

1B 2D 1B 3D

4 4 4 4

Vertical Control

Page Length, Set in 1/2"

ESC G Hn L

27 71 Hn L

1B 47 Hn L

Increments Page Length, Set in Lines Skip Over Perforation On Skip Over Perforation Off Set Top of Form Form Feed Skip Down Selected

ESC F Hn L ESC % S n ESC % S 0 ESC 5 FF ESC VT Hn L

27 70 Hn L

27 37 83 n 27 37 83 0 27 53 12

27 11 Hn L

1B 46 Hn L 1B 25 53 n 1B 25 53 00 1B 35 0C 1B 0B Hn L

Number of Lines

Line Feed

(with Carriage Return)

Line Feed (without

ESC DC2

27 18

1B 12

Carriage Return)

Carriage Return/Line

ESC ? n :

25 63 n 58

1B 3F n 3A

Feed Selection Command

ML720/721 Printer Handbook 91

Microline Function ASCII Code

Decimal Code

Hexadecimal Code

Vertical Control (cont.)

Perform

" Line Feed

144

Reverse Line Feed Set Line Spacing to Set Line Spacing to Set Line Spacing to

1 1

Vertical Tab Execute VFU Vertical Tab Set Vertical Tab Channels Line feed compound

command

Miscellaneous

Cancel Initialize Printer Half-Speed Printing On Half-Speed Printing Off Change Emulation Paper-Out Sensor On Paper-Out Sensor Off Print Suppress Mode On Print Suppress Mode Off Software I-Prime Incremental print mode

On, Off

ESC % 5 n ESC LF ESC 8

/8"

ESC 6

/6" /

ESC % 9 n

144

VT VT n DC4 SP SP n SP SP? ESC DLE H Pno A1 A2 P1 P2 P3

CAN ESC CAN ESC < ESC > ESC { n ESC E 0 ESC E 1 DC3 DC1 ESC } 0 ESC i n

27 37 53 n 27 10 27 56 27 54 27 37 57 n 11 11 n 20 3232 n 3232 63 27 16 72 Pno A1 A2 P1 P2 P3

24 27 24 27 60 27 62 27 123 n 27 69 0 27 69 1 19 17 27 125 0 27 105 n

1B 25 35 n 1B 0A 1B 38 1B 36 1B 25 39 n 0B 0B n 14 20 20 n 20 20 3F 1B 10 48 Pno A1 A2 P1 P2 P3

18 1B 18 1B 3C 1B 3E 1B 7B n 1B 45 00 1B 45 01 13 11 1B 7D 00 1B 69 n

92 Appendix C: Priner Commands

ppendix D: ASCII Character Codes

Lower ASCII Character Sets

Lower ASCII Character Sets (1/4)

ML720/721 Printer Handbook 93

Oki MICROLINE 720, MICROLINE 721 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Unpacking

Removing Shipping Retainers

Installing Ribbon Cartridge

Making Connections

Connection with Computer

Connection with Power

Loading Single-Sheet Paper

Loading Rear-Feed Paper

Paper Handling

Tear Feature

Forms T ear-off Feature

Paper Park Feature

Switching Paper Paths

Control Panel

Print Mode

Indicator Lights

Buttons

Menu Mode

Sample Menu

Summary of Menu Settings

Menu Mode Indicator Lights

Menu Mode Buttons

Resetting Menu to Factory Defaults

Performing Basic T asks

Selecting Print Quality

Selecting Character Pitch

T esting Y our printer

Resetting T op of Form

Using Bar codes

Basic Terminology

Printer Commands

Emulations

Printer Drivers

Compatible Printer Drivers (DOS)

Windows Printer Drivers

Problem Solving

Maintenance

Replacing the Ribbon Cartridge

Clearing Paper Jams

Cleaning the Housing

Accessories

Replacement Parts

Explanation of Menu Items

IBM Proprinter Printer Commands

Epson FX Printer Commands

OKI Microline (ML) Printer Commands

Lower ASCII Character Sets