User’s Guide 59348401
Every effort has been made to ensure that the information in this document is complete, accurate, and up-to-date. Oki Data assumes no responsibility for the results of errors beyond its control. Oki Data also cannot guarantee that changes in software and equipment made by other manufacturers and referred to in this guide will not affect the applicability of the information in it. Mention of software products manufactured by other companies does not necessarily constitute endorsement by Oki Data.
Safety Your Oki printer has been carefully designed to give you years of safe, reliable performance. As with all electrical equipment, there are a few basic precautions you should take to avoid hurting yourself or damaging the printer: • Carefully read all setup and operating instructions. Be sure to save all documents for future reference. • Read and follow all warning and instruction labels on the printer itself. • Place your printer on a firm, solid surface.
• Unplug the printer before you clean it. Use only a damp cloth. Do not use liquid or aerosol cleaners. • To protect your printer from overheating, make sure no openings on the printer are blocked. Do not put the printer on or near a heat source, such as a radiator or heat register. If you put the printer in any kind of enclosure, make sure it is well ventilated. • The printhead can get quite hot when it has been printing for a length of time.
Contents Safety............................................................................ 3 Chapter 1: Introduction ............................................. 7 Printer Features ............................................................................... 7 Chapter 2: Helpful Hints ........................................... 8 Saving Money: Forms Tear-Off ...................................................... 8 Saving Time .............................................................................
Chapter 4: Menu Mode ............................................ 26 Appendix B: Printer Control Codes ....................... 68 Menu Mode Keys ....................................................................... 26 Entering and Exiting Menu Mode ............................................. 27 Resetting the Menu to the Factory Defaults .............................. 27 Printing the Menu Settings ......................................................... 27 Changing the Menu Settings ..................
Chapter 1: Introduction Printer Features Oki Data on the Internet • Super reliable, durable operation: 20,000 hours Mean Time Between Failures (MTBF) at 25% duty cycle and 35% page density • Advanced paper handling, with built-in rear push tractor and zero-tear forms capability.
Chapter 2: Helpful Hints Saving Money: Forms Tear-Off Saving Time The Forms Tear-Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer. Internet Support When printing stops, Forms Tear-Off automatically moves the paper to align the perforation with the tear bar (located under the access cover), after a time interval which you select through the menu. • www.okidata.com is the main web site, the gateway to Oki Data’s products and services.
Operation Tips Top of Form (TOF) Top of Form (TOF) sets the print start position. The factory default is 1" from the top. The Top of Form can be changed in increments of 1/180", either for a single print job or set to a new default. The overall amount of adjustment is limited to avoid paper jams. The first line prints at the red line of the plastic paper shield (1) on the printhead.
Chapter 3: Using Your Printer Parts Identification: Rear Feed (Continuous Forms) Note: The serial number of your printer is on a label on the back, beside “S/N.” Sheet Guide Paper Lever On-Off Switch Platen Knob Control Panel Acoustic Cover Access Cover 10 Note: For rear feed, the paper lever must be forward.
Parts Identification: Top Feed (Single Sheets) Note: For single-sheet printing, the paper lever must be in the middle position.
Top of Form (TOF) Top of Form (TOF) and Forms Tear-Off Important! If you turn the platen knob when the printer is on, the Top of Form misaligns. Always shut the printer off before turning the platen knob! Note: Your software may print the first line of print above or below where TOF is set. You may need to adjust the TOF to meet your software’s requirements. Note: The factory default setting for the Top of Form (where the printing should begin) is 1" down from the top of the page.
Determining if Forms Tear-Off is Off or On To use the TEAR key: There are two ways to determine the status of the Forms Tear-Off menu setting: 1 Make sure paper is loaded. 2 Press TEAR (3). • If the paper moves up, Forms Tear-off is off. • If the paper moves down, Forms Tear-off is on. • Print the Menu. • Use the TEAR key. To print the Menu: 1 2 3 4 Make sure paper is loaded. Hold SHIFT (2), then press SEL (1) to enter the Menu Mode. Press PARK (4) to print the menu.
Setting Top of Form (TOF): Forms Tear-Off OFF (Default Setting) Important! If you turn the platen knob when the printer is on, the Top of Form misaligns. Always turn the printer off before turning the platen knob! With paper loaded and the printer on and selected: 1 Press SEL | MENU (1) to take the printer off line. The SEL light goes out. 2 Press and hold SHIFT (2), then Note: When you begin pressing the Micro Feed key, the printhead will move to the right.
Setting Top of Form (TOF): Forms Tear-Off Set to ON Important! If you turn the platen knob when the printer is on, the Top of Form misaligns. Always turn the printer off before turning the platen knob! 2 Press SHIFT (2) and QUIET/TOF (7) to reset the current TOF. 3 Press FF/LOAD (4) to load the paper. 4 Wait briefly until the paper moves up to the tear position, then press and hold TEAR (5). The paper moves to the current TOF. 5 Keep holding TEAR, then press and hold SHIFT (2) and release TEAR.
Temporarily Changing the Top of Form Position Important Do not use the platen knob to change the Top of Form. If you turn the platen knob when the printer is turned on, the Top of Form misaligns. Always turn the printer off before turning the platen knob! To move the Top of Form position lower for one page only: 1 Press SEL to deselect the printer. 2 Press LF to lower the position of the Top of Form.
Forms Tear-Off Feature Note: This feature is normally turned off. To use Forms Tear-Off, you must enter the menu and change the setting to the desired time interval (see next page). The Forms Tear-Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer. It can be used for rear feed continuous forms, bottom feed continuous forms (with the optional push tractor installed) or for top feed roll paper (with optional roll paper stand installed).
Changing the Forms Tear-Off Setting Manual Forms Tear Off Note: The default setting for Forms Tear-Off is OFF. If you don’t wish to engage the Forms Tear-Off feature, you can advance • rear-feed continuous forms loaded on the built-in tractor or • bottom-feed continuous forms loaded on the optional push tractor up to the tear off position manually by pressing TEAR (5). Paper Park To change the Forms Tear-Off setting: 1 Press SHIFT (2) + SEL (1).
Changing Paper Paths 4 Move the paper lever (1) to the middle position marked “TOP.” Continuous Forms toÿSingle Sheets 1 Tear off any printed pages, then press PARK. 2 Raise the sheet guide (1) to the single-sheet feed position. 5 Adjust the paper guides (1) for the size paper you are using, then place a sheet of paper in the sheet guide. 3 Pivot the wire feed guide into the sheet guide.
Single Sheets toÿContinuous Forms 1 Press FF/LOAD to remove the single-sheet paper. 2 Lower the sheet guide into the continuous-forms position. 4 Move the paper lever to the appropriate position. • Rear feed: • Bottom feed: 3 Swing the wire feed guide over onto the pull-up roller. 5 If necessary, load continuous-form paper. 6 Press FF/LOAD.
Printhead Gap The printhead gap is the distance between the printhead and the platen. To adjust the gap, open the access cover and move the blue lever (1) to the recommended setting from the table. CAUTION! Make sure the printer is turned off before you open the access cover.
Print Quality Press PRINT QUALITY (1) to select: Important! Front panel settings for print quality and character pitch are normally overridden by software commands.
Typefaces: LQ Mode Important! Front panel settings for print quality and typeface are normally overridden by software commands.
Character Pitch Important! Front panel settings for character pitch are normally overridden by software commands. Character pitch determines how many characters will print on each line. You can choose a specific fixed width for each character of from 10 to 20 characters per inch (CPI). The higher cpi settings are often used for spreadsheets. In LQ mode, you can select proportional (PROP) which sets character widths based on the character itself: e.g.
Printer Reset Emulations Clearing some error conditions requires that you reset (reinitialize) the printer. To do this: • Epson® LQ — factory setting • IBM® Proprinter • IBM® AGM 1 Press and release SEL (1) to take the printer off-line. The SEL light goes out. 2 Press and hold SHIFT (2), then press RESET/CHARACTER PITCH. Important! Pressing SHIFT + RESET reinitializes the printer, but does not affect any menu settings and does not reset the printer to the factory defaults.
Chapter 4: Menu Mode Note: Please print the current Menu Mode settings before you reset or change them. This is the only way to have a record of the settings. In Menu Mode, you use the front panel keys to change the defaults for the printer parameters. The changes you make in the Menu Mode are automatically saved when you exit the Menu Mode and are retained, even when you turn the printer off. Menu Mode Keys GROUP Key Prints the next Group in the Menu. With the SHIFT key, prints the previous Group.
Entering and Exiting Menu Mode Printing the Menu Settings To enter or exit the Menu Mode, hold SHIFT while pressing SEL. Printing the Current Menu Settings Resetting the Menu to the Factory Defaults Note: Please print the current Menu Mode settings before you reset or change them. This is the only way to have a record of the settings. To reset the Menu to the standard settings (factory defaults): 1 Turn the printer off. 2 Press SEL + LF while turning the printer on.
Changing the Menu Settings Note: Please print the current Menu Mode settings before you reset or change them. This is the only way to have a record of the settings. 1 Press and hold SHIFT, then press SEL to enter the Menu Mode. 2 Use the GROUP, ITEM and SET keys to make your changes: a Press GROUP until the Group you wish to change appears in the first column. b Press ITEM until the Item you wish to change appears in the second column. c Press SET until the setting you want appears in the third column.
Menu Settings Table For a complete explanation of each menu item, see “Explanations of Menu Items” later in this chapter. The table below shows the items which may appear in the menu. Settings which are engaged at the factory (defaults) are set in bold italic. Some groups or entries will only appear when a specific emulation is engaged, as noted.
Menu Settings Table (Continued) Group Item Settings (Defaults are set in bold italic) Rear Feed Line Spacing 6 LPI, 8 LPI Form Tear-Off Off, 500 ms, 1 sec, 2 sec Skip Over Perforation No, Yes Page Width (wide model) 13.6", 8" Page Length 11", 11-2/3", 12", 14", 17", 5", 3", 3.25", 3.5", 4", 5.5", 6", 7", 8", 8.5" Line Spacing 6 LPI, 8 LPI Form Tear-Off Off, 500 ms, 1 sec, 2 sec Skip Over Perforation No, Yes Page Width (wide model) 13.
Menu Settings Table (Continued) Group Item Settings (Defaults are set in bold italic) Top Feed Line Spacing 6 LPI, 8 LPI Form Tear-Off* Off, 500 ms, 1 sec, 2 sec Bottom Margin Valid, Invalid Page Width (wide model) 8", 13.6" Page Length 11", 11-2/3", 12", 14", 17", 5", 3", 3.25", 3.5", 4", 5.5", 6", 7", 8", 8.
Menu Settings Table (Continued) Group Item Settings (Defaults are set in bold italic) Setup (cont.) Operator Panel Function Full Operation, Limited Operation Reset Inhibit No, Yes Print Suppress Effective No, Yes Auto LF No, Yes Auto CR* No, Yes CSF Bin Select† Bin 1, Bin 2 SI Select Pitch (10 cpi)* 15 cpi, 17.
Menu Settings Table (Continued) Group Item Settings (Defaults are set in bold italic) Parallel I/F I-Prime Buffer Print, Buffer Clear, Invalid Pin 18 +5V, Open Auto Feed XT* Invalid, Valid Bi-Direction Enable, Disable Parity None, Odd, Even Serial Data 7/8 Bits 8 Bits, 7 Bits Protocol Ready/Busy, X/On / X/Off Diagnostic Test No, Yes Busy Line SSD-, SSD+, DTR, RTS Baud Rate 19200 bps, 9600 bps, 4800 bps, 2400 bps, 1200 bps, 600 bps, 300 bps DSR Signal Valid, Invalid DTR Signal Read
Menu Settings Table (Continued) Group Item Settings (Defaults are set in bold italic) CSF Bin 1* Line Spacing 6 LPI, 8 LPI Bottom Margin Valid, Invalid Page Width (Wide model) 8", 13.6" Page Length 11", 11-2/3", 12", 14", 17", 5", 3.5", 4", 5.5", 6", 7", 8", 8.5" Line Spacing 6 LPI, 8 LPI Bottom Margin Valid, Invalid Page Length 11", 11-2/3", 12", 14", 17", 5", 3.5", 4", 5.5", 6", 7", 8", 8.5" CSF Bin 2* * Appears only when the optional Cut Sheet Feeder is installed.
Explanations of Menu Items These explanations are in alphabetical sequence to make it easier to look them up. Some items only appear when optional accessories are installed; others appear in several groups in the menu. Auto CR, Default =No IBM Only. If you want the printer to automatically add a carriage return when a Line Feed is received at the end of a line, change the setting to Yes.
Busy Line, Default = SSD- Code Page, Default = USA Appears only when the optional Serial Interface is installed. If Ready/Busy protocol (factory default) is selected, you can choose which line your system monitors for a busy signal: Choose the Code Page character set you wish to use: USA, Canada French, Multilingual, Portugal, Norway, BRASCII, Abicomp, Multilingual 858, or ISO 8859-15.
DTR Signal, Default = Ready on Power Up I-Prime, Default = Buffer Print Appears only when the optional Serial Interface is installed. Change to Ready on Select if the DTR signal is required when the printer is selected (leave as Ready on Power Up if the DTR signal is required when the printer is turned on). Determines what the printer will do when it receives the I-Prime signal from the software. Emulation Mode, Default = Epson LQ Selects the printer command set (emulation) you want to engage.
Operator Panel Function, Default = Full Operation Change to Limited Operation to deactivate the PRINT QUALITY and CHARACTER PITCH buttons, so that these features can only be controlled through your software. This prevents these from being changed from the control panel when several people are using the printer. Important! This feature also prevents access to the Menu. To access the Menu in these circumstances, turn the printer off, then hold down the SEL key while turning on the printer.
Power Save Time, Default = 5 min Proportional Spacing, Default = No Sets the interval the printer waits for more data before it goes into the power save mode. Power Saving must be set to enable (the factory default) for this to be effective. Change the setting to Yes to engage proportional spacing of characters. Protocol, Default = Ready/Busy Change to Disable if you wish to prevent the printer from entering the Power Save mode after the selected interval.
Serial Data 7/8 Bits, Default = 8 Bits Style, Default = Normal Appears only if the optional Serial Interface is installed. Change to 7 Bits if you systems uses a 7-bit data format. Change to italics if you want the printed characters to be slanted. SI Select Pitch 10 cpi, Default = 17.1 cpi Time Out Print, Default = Valid IBM emulation only. Sets the pitch to be engaged when the printer control panel is set for 10 cpi and the SI command is received.
Chapter 5: Maintenance Replacing the Ribbon Cartridge Important! Make sure you have the correct replacement ribbon for the your printer. The wrong ribbon will not print when installed in your printer. 1 Make sure the printer is turned OFF. 2 Open the access cover and center the printhead. Ribbon Cartridge Handling • Leave unused ribbon cartridges in their packages until needed. • Careful; the ribbon ink may cause permanent stains.
CAUTION! The printhead may be HOT! 5 Turn the take-up knob in the direction of the arrow to take up any ribbon slack. 3 Swing the used ribbon cartridge up off the printhead, lift it out, and discard it. 6 Close the access cover and turn the printer back on. CAUTION! If ribbon should contact the eyes: 4 Unpack the new ribbon cartridge and install it.
Loading Paper Loading Rear Feed Paper from the Back of the Printer Rear Feed Note: These instructions assume you have ready access to the back of the printer. If you do not, skip down to “Loading Rear Feed Paper from the Front of the Printer.” Note: If you have any paper in the paper path, remove it before installing rear feed paper. Lock Lever 1 Make sure the paper lever is forward (position marked “REAR”). Upper Tractor Cover Pins 2 Open the access cover (1).
3 Grasp the sheet guide. Lift it slightly, then slide it back. 4 Pivot the sheet guide forward and gently rest it against the roller assembly. Careful! If you push the sheet guide too hard against the roller assembly, it may dislodge it. If it does, be sure to reseat the roller assembly before continuing.
5 From the back of the printer, locate the tractors (1). 6 Open the lock levers (1) and move the right tractor (as viewed from the back of the printer) to the reference mark (2) matching the width of the paper you are loading. Then close the lock lever on the right tractor: ML491 ML490 Note: The movement of the right tractor is limited to ensure that the paper covers the paper sensor. 7 Open the tractor covers.
8 Place continuous forms paper on the first two pins of either tractor. Important! You must keep the number of paper holes engaged on either pin the same. If you don’t the paper will skew and jam. 9 Close the right tractor cover. 46 Microline 490/491 User’s Guide 10 Adjust the left tractor until the holes in the paper are centered on the pins then lock the lever and close the left tractor cover. Note: If the paper is too loose or too tight it can cause jams.
11 Lower the sheet guide and slide it toward the front of the printer until the marks align. 12 Place the wire guide (“1” in the illustration for the step above) in the sheet guide on the pull-up roller assembly. 13 Press FF/LOAD. Note: The factory default setting for the Top of Form (where the printing should begin) is 1" down from the top of the page. To change the setting, see “Top of Form (TOF)” in Chapter 3.
Loading Rear Feed Paper from the Front of the Printer 2 Open the access cover (1). Note: These instructions assume you do not have ready access to the back of the printer. If you do, go back to “Loading Rear Feed Paper from the Rear of the Printer” earlier in this chapter. Lock Lever Upper Tractor Cover Pins 3 Grasp the tabs and lift off the sheet guide. 1 Make sure the paper lever is forward (position marked “REAR”). 4 Pull up on the lock levers to release them.
Note: The movement of the left tractor (as viewed from the front of the printer) is restricted to ensure that the paper covers the paper out sensor. 7 Open the tractor covers and place continuous forms paper on the first two pins of either tractor, then close the left tractor cover. 5 You will find reference marks (1 in illustration below) on the printer for the two most common paper sizes: Important! You must keep the number of paper holes engaged on either pin the same. If you don’t the paper will jam.
8 Adjust the position of the right tractor to center the holes in the paper on the pins. Then, close its tractor cover and push back the lock lever. Do not stretch the paper. Note: If the paper is too loose or too tight it can cause jams. 50 Microline 490/491 User’s Guide 9 Reinstall the sheet guide.
10 Place the wire guide (1) in the sheet guide on the pull-up roller assembly. 11 Press FF/LOAD. Note: The factory default setting for the Top of Form (where the printing should begin) is 1" down from the top of the page. To change the setting, see “Top of Form (TOF)” in Chapter 3.
Top Feed (Single Sheets) Note: If you have continuous form paper in the path, press PARK to remove it before loading single sheets. 1 Make sure the printer is on and deselected (SEL light off). 2 Place the paper lever in the center position (marked “TOP”). 52 Microline 490/491 User’s Guide 3 Open the acoustic cover (1) and raise the sheet guide to the single-sheet position. Pivot the wire feed guide (2) up into the sheet guide.
4 Adjust the paper feed guides (1) for the width of the paper, then place a sheet of paper in the separator. The paper will feed into the printer. Important! If the paper does not feed in, remove it. Check the paper lever position. Make sure the ALARM light is on: if it is flashing, hold the SHIFT key and press the CHARACTER PITCH/RESET key. Reload the sheet of paper. Note: The factory default setting for the Top of Form (where the printing should begin) is 1" down from the top of the page.
Clearing Paper Jams 4 Lift the sheet guide (1) and reload paper. Make sure you lock the tractor covers. Rear-Feed Paper Jams 1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the printer. CAUTION! Make sure the printer is turned off before you open the access cover. 3 Open the access cover (1) and remove the pull-up roller assembly (2). Remove any torn pieces of paper. 5 Lower the sheet guide, then install the pull-up roller assembly and close the access cover.
Rear-Feed, Repeating Paper Jams Bits of Paper Stuck in the Paper Path If the paper keeps jamming, you may have: 1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the printer. • defective paper • misaligned paper • bits of paper stuck in the paper path Defective Paper Replace the paper with a fresh stack. Misaligned Paper 1 Turn off the printer. 2 Use the platen knob to back the paper all the way out of the printer.
4 Remove any torn pieces of paper. 5 Fold some continuous-form paper over three times to make a page four sheets thick. Then, load it on the tractors and close and lock the covers. 8 Load regular paper, close and lock the tractor covers. 9 Install the sheet guide, then install the pull-up roller assembly and close the access cover. 6 Use the platen knob to draw the quadruple-thick page around the platen. This brings out jammed pieces of paper. 7 Remove the paper pieces.
Single-Sheet Paper Jams 1 Turn off the printer. 2 Use the platen knob to back the paper out. 3 Open the access cover (1) and remove the pull-up roller assembly (2). 4 Remove any torn pieces from around the carriage. 5 Reinstall the pull-up roller assembly and close the access cover.
Cleaning the Housing You should clean the printer housing every six months (or after about 300 hours of operation). CAUTION! Never use strong solvents or strong detergents on the cabinet—they could damage the housing. 1 Turn off the printer. 2 Use the platen knob to back the paper out of the printer. CAUTION! Make sure the printer is turned off before you open the access cover. 3 Open the access cover (1) and remove the pull-up roller assembly (2).
Chapter 6: Troubleshooting General Information Here are some general things to check before proceeding with detailed troubleshooting.
Problems / Solutions Problem The I-Prime signal will automatically override any front panel settings you have made. To eliminate this problem, enter the Menu Mode, go to the Parallel Interface group and change the setting for I Prime to Invalid. My word processor files do not print the way I have the menu and front panel set. For more information on changing menu settings, see “Changing the Menu Settings” in Chapter 4.
Problem Problem The printer does not print when the computer sends data. I'm getting strange symbols, incorrect fonts, etc., when I try to print a document. Solutions 1 Is the SEL light on? If not, press the SEL key. 2 Check that the interface cable is securely connected to both the printer and the computer. 3 If you have the optional serial interface board installed, check to be sure that it is firmly seated in the printer.
Problem Problem Ink smears on the paper when I print narrow columns. I've installed a new ribbon and the printing is smeared and streaked. Solution This may be caused by excessive printhead travel from the centering position. Enter the Menu and set the Centering Position to MODE 1. See “Using Your Printer, Menu Mode.” Solution The ribbon shield (1) is either loose or missing. For the wide-carriage printer, if MODE 1 doesn't work, try setting the Centering Position to MODE 2.
Problem Problem There are dots missing in my printouts. The ALARM light is on and the Character Pitch 10 light is flashing. Solution The head gap may not be set correctly. Try moving the headgap lever to a lower setting. If that doesn’t help, the printhead may be damaged; call for service. Solution This indicates that the paper lever is set at the wrong position for the paper you are trying to use. Move it to the proper setting. Problem The ALARM light is flashing.
Problem Problem The printer needs paper. The ALARM is not on. I can’t load paper. The Print Quality and Character Pitch keys on the front panel don't work. Solution 1 Press and release the SEL key. 2 Press and hold the SHIFT key and press the RESET / CHARACTER PITCH key. 3 The ALARM light comes on and you can now load paper. Solution The Operator Panel Function in the printer menu can be used to disable these buttons (Limited Function).
Appendix A: Parts & Accessories Purchasing Parts & Accessories Before you purchase, know your printer model number (see the front of the unit) and have the correct part number and description of the item. Item descriptions and part numbers are provided in this section. • Consult the dealer where your purchased your printer. • Locate an Authorized Oki Data Reseller by visiting one of our web sites http://my.okidata.
Replacement Parts Item Part Number Both Models Ribbon Cartridge ( ) ------------------------------- 42377801 Platen Knob ( ) ------------------------------------- 51902220 Power Cord ( ) ------------------------------------- 56631801 Model ML490 Printhead ( ) ---------------------------------------- 42124201 Access Cover ( ) ----------------------------------- 42115401 Sheet Guide ( ) ------------------------------------- 51009509 Pull-Up Roller Assembly ( ) --------------------- 42044701 Model ML491 Pri
Accessories Option Part Number Model ML490 Pull Tractor, Top-Mount ( ) ----------------------- 70030501 Push Tractor, Bottom-Mount ( ) ----------------- 70030701 Roll Paper Stand ( ) ------------------------------- 70023301 Model ML491 Pull Tractor, Top-Mount ( ) ----------------------- 70030601 Push Tractor, Bottom-Mount ( ) ----------------- 70030801 Both Models Cut Sheet Feeder ( ) ------------------------------- 70030101 Serial Interface ( ) --------------------------------- 70012801 OkiLAN 6120i 10/1
Appendix B: Printer Control Codes This section lists the most commonly used printer control codes. You will find a comprehensive listing of the control codes (English only), on your Printer CD. To access it: 1 Place the CD in your CD-ROM drive and wait for it to AutoPlay. 2 Select your printer model, then click Continue. 3 Click Documentation and follow the on-screen prompts to view the file.
Epson LQ Commands (Continued) Epson Command ASCII Decimal ESC q 0 ESC q 1 ESC q 2 ESC q 3 27 113 48 27 113 49 27 113 50 27 113 51 Delete DEL 127 Double Height On ESC w 1 or ESC US 0 27 119 49 or 27 31 48 Double Height Off ESC w 0 or ESC US 1 27 119 48 or 27 31 49 Double Width On ESC W 1 27 87 49 Double Width Off ESC W 0 27 87 48 SO or ESC SO 14 or 27 14 Emphasized Print On ESC E 27 69 Emphasized Print Off ESC F 27 70 Character Style Normal Outline Shadow Outline with Shadow Doub
Epson LQ Commands (Continued) Epson Command ASCII Decimal Line Feed, Execute w/ Carriage Return n/180" (n = 0 to 255) n/360" (n = 0 to 255) Reverse, n/180" (n = 0 to 255) Line Spacing, Set n/360" (n = 0 to 255) n/180" (n = 0 to 255) n/60" (n = 0 to 127) 1/6" 1/8" Epson Command Decimal ESC 1 n 27 108 n ESC Q n 27 81 n ESC 8 ESC 9 27 56 27 57 ESC x 1 ESC x 0 ESC k 0 ESC k 1 ESC k 2 ESC k 3 ESC k 7 27 120 49 27 120 48 27 107 48 27 107 49 27 107 50 27 107 51 27 107 55 Margins Set Left Margin (n =
Epson LQ Commands (Continued) Epson Command ASCII Decimal ESC s 1 ESC s 0 27 115 49 27 115 48 Print Suppress Mode On DC3 19 Print Suppress Mode Off DC1 17 Proportional Spacing On ESC p 1 27 112 49 Proportional Spacing Off ESC p 0 27 112 48 Print Speed Half-Speed On Half-Speed Off Epson Command ASCII Decimal Underline On ESC - 1 27 45 49 Underline Off ESC - 0 27 45 48 ESC < ESC U 1 ESC U 0 27 60 27 85 49 27 85 48 ESC 6 ESC 7 27 54 27 55 VT 11 Uni-Directional Printing Skip Ov
IBM Proprinter X24e / XL24e and IBM X24e AGM / XL24e AGM Commands IBM Command ASCII Decimal ESC W 1 ESC W 0 SO 27 87 49 27 87 48 14 Double Width On Off for One Line IBM Command ASCII Decimal Backspace BS 8 Emphasized Printing On ESC E 27 69 Cancel CAN 24 Emphasized Printing Off ESC F 27 70 Carriage Return CR 13 Enhanced Printing On ESC G 27 71 Enhanced Printing Off ESC H 27 72 Form Feed FF 12 Character Pitch, Select 10 cpi 12 cpi 15 cpi Condensed Print DC2 ESC : ESC g 18
IBM Commands (continued) IBM Command ASCII Decimal Print One Character from IBM Set III (n = 0 to 255) ESC ^ n 27 94 n Italic Printing On ESC % G 27 37 71 Italic Printing Off ESC % H 27 37 72 LF 10 ESC J n 27 74 n ESC J n ESC% 4 n ESC ] 27 74 n 27 37 52 n 27 93 Auto Line Feed On ESC 5 1 27 53 49 Auto Line Feed Off ESC 5 0 27 53 48 Line Feed, Execute w/ Carriage Return n/180" AGM only (n = 1 to 255) n/216" PPR only (n = 0 to 255) n/360" (n = 0 to 255) Reverse IBM Command ASCII Deci
IBM Commands (Continued) IBM Command ASCII Decimal ESC N n 27 78 n IBM Command ASCII Decimal Skip Over Perforation On (n = 1 to 255) Paper Out Sensor Off ESC 8 27 56 Skip Over Perforation Off ESC 0 27 79 Paper Out Sensor On ESC 9 27 57 Software I-Prime ESC } NUL 27 125 0 Stop Printing ESC j 27 106 Subscript On ESC S 1 27 83 49 Superscript On ESC S 0 27 83 48 Subscript/Superscript Off ESC T 27 84 Top of Form, Set at Current Position ESC 4 27 52 Print Quality / Font Select
Appendix C: Specifications Note: Specifications are subject to change without notice. Print Method Impact dot matrix Printhead 24 pins, 0.20 mm (0.0079") diameter, with thermal protection Interfaces Standard: Centronics parallel, IEEE-1284 compliant USB 1.
Emulations (co-resident) Characters per Line (cpl) • Epson LQ • IBM Proprinter X24e / XL24e • IBM X24e AGM / XL24e AGM Print Speed Setting ML490 ML491 10 cpi 80 cpl 136 cpl 12 cpi 96 cpl 163 cpl 15 cpi 120 cpl 204 cpl Mode Pitch Speed 17.1 cpi 137 cpl 233 cpl High Speed Draft (HSD) 10 cpi* 420 cps† 20 cpi 160 cpl 272 cpl Utility 10 cpi 12 cpi 15 cpi 17.1 cpi 20 cpi 315 cps 378 cps 472 cps 269 cps 315 cps 10 cpi 12 cpi 15 cpi 17.
Resident Fonts Resident Typefaces Print Quality Available Fonts Mode/Font Size: Style Letter Quality Courier, Gothic, Orator, Prestige, Roman, Swiss, Swiss Bold LQ Courier Utility Gothic 10 & 12 cpi: Normal, Superscript, Subscript Proportional: Normal, Superscript, Subscript 8 point: Normal Scalable: 11 to 64 points LQ Letter Gothic 10 cpi, 12 cpi, Proportional: Normal LQ Prestige 10 cpi, 12 cpi, Proportional: Normal LQ Orator 10 cpi, 12 cpi, Proportional: Normal LQ Roman 10 & 12 cpi: Nor
Paper Specifications: ML490 Single (Cut) Sheets Feed: Top Only Weight: 14 to 24 lb. US Bond (52.6 to 90 g/m2) Width Range: 7.2" to 8.5" (183 to 216 mm) Single-part, continuous forms Feed: Rear, Bottom* Weight: 12 to 24 lb. US Bond (45 to 90 g/m2) Width Range: 3" to 10" (76 to 254 mm) Carbonless continuous forms (orig. + 4 copies) Feed: Rear, Bottom* Weight: 9 to 11 lb. Width Range: 3" to 10" (76 to 254 mm) Interleaf continuous forms (orig. + 4 copies) Feed: Rear, Bottom* Weight: 10 to 12 lb.
Paper Specifications: ML491 Single (Cut) Sheet Feed: Top Only Weight: 14 to 24 lb. US Bond (52.6 to 90 g/m2) Width Range: 7.2" to 14.3" (182.8 to 363.2 mm) Single-part, continuous forms Feed: Rear, Bottom* Weight: 12 to 24 lb. US Bond (45 to 90 g/m2) Width Range: 3" to 16" (76.2 to 406.4 mm) Carbonless continuous forms Feed: Rear, Bottom* Weight: 9 to 11 lb. Width Range: 3" to 16" (76.2 to 406.4 mm) Interleaf continuous forms Feed: Rear, Bottom* Weight: 10 to 12 lb. paper, 9 lb.
Environmental Requirements Physical Specifications Temperature Note: Height dimensions do not include the acoustic cover. Operating: 41 to 95°F (5 to 36°C) Storage: 14 to 122°F (-10 to 50°C) Humidity Operating: 20 to 80% RH Storage: 5 to 95% RH Electrical Requirements • 120 volts ac, (+6%, -15%) 50 or 60 Hz (±2%) 78 W Typical, 10 W idle • 230 ac, (+15%, -14 %) 50 or 60 Hz (±2%) 78 W Typical, 10 W idle 80 Microline 490/491 User’s Guide ML490 Size (WxDxH): 17.1" x 16.
Appendix D: Installation Location Printer • Place your printer on a firm, solid surface. • Allow enough space around the printer to easily access the platen knob and the various paper feed paths. • Make sure a suitable grounded power outlet is available nearby. Ribbon Cartridge Power Cord Unpack • If any items are missing, contact your dealer immediately. • Keep your packing materials and carton in case you ever need to ship or transport the printer. • Interface cable and paper are sold separately.
1 Remove any packing tape, then grasp the tabs (1) at either end of the access cover and pivot it toward the front of the printer as far as it will go. 2 Remove the printhead shipping restraint. 82 Microline 490/491 User’s Guide 3 Remove the shipping restraint from the pull-up roller assembly (1).
4 Use the tabs (1) to lift and remove the sheet guide, then remove the shipping restraint. 5 Reinstall the sheet guide: insert the clips on either side of the separator into the notches marked with a triangle, then press down to secure the separator in place.
Install the Ribbon Cartridge Important! Make sure you have the correct replacement ribbon for the your printer. The wrong ribbon will not print when installed in your printer. Ribbon Cartridge Handling CAUTION! The printhead may be HOT! 3 Unpack the new ribbon cartridge and install it on the printhead. Important! Do not remove the ribbon shield (1) from the ribbon! • Leave unused ribbon cartridges in their packages until needed. • Careful; the ribbon ink may cause permanent stains.
Power Connection Computer Connections 1 Make sure both the printer and the computer are OFF. 2 Plug the power cord into the back of the printer, then into a grounded outlet. Parallel (LPT): IEEE 1284 • Requires bidirectional cable, max. length 6 ft. (1.8 m), not supplied. • Printer has 36-pin socket 1 Make sure the printer and computer are both turned off. 2 Attach a suitable bidirectional cable to the parallel connector on the back of the printer. Then attach and secure the cable to your computer.
USB: Specification 1.1 Compliant Loading Paper • Requires USB 1.1 cable, maximum length 19.7 ft. (5 m), not supplied. • Printer has USB “B” receptacle. For instructions on loading paper, see “Loading Paper” in Chapter 5. 1 Make sure the printer and computer are both turned off. 2 Attach a suitable USB cable to the printer. Then attach the cable to your computer. 3 Turn the computer and printer back on.
Testing the Printer • Font Sample Test • Rolling ASCII Test • Hexadecimal Dump Mode Font Sample Test The Font Sample Test prints a sample of the fonts standard to the printer. The top of the printout shows the Printer Model, Emulation, Country Code, Interface, and Firmware Revision Level. 1 Make sure paper is loaded. 2 Turn off the printer. 3 Press and hold the LF key while turning the printer back on. The printer prints a page of font samples and the test ends.
Rolling ASCII Test The Rolling ASCII Print Test produces a continuous printout of all 96 ASCII characters in a rolling pattern in whatever typeface is selected (default = LQ Courier). The top of the printout shows the Printer Model, Emulation, Country Code, and Firmware Revision Level. Important! Wide carriage Model ML491: If you are using 8.5" paper to run the tests, make sure the paper width selection in the printer menu is set to 8.5 inches. Otherwise, printing on the platen may damage the printer.
Hexadecimal Dump Mode Emulations When the printer is placed in the Hexadecimal Dump Mode, all data received, including text and printer commands, is printed in both hexadecimal and ASCII format. The factory default emulation for your printer is Epson® LQ. For example, the following line of BASIC code LPRINT CHR$ (27);0;CHR$ (30);This is an example of a hexadecimal dump. If you wish to change to one of the IBM emulations, see “Changing Emulations” in Chapter 3.
Loading the OKI Driver Using a Compatible Driver Parallel Interface Note: See your software documentation for information on how to select a printer driver. 1 Insert the CD into your CD-ROM drive. ® Note: If the CD does not AutoPlay, click Start Run Browse, then browse to your CD-ROM drive, double-click Install.exe and click OK. ® The drivers below are listed by decreasing compatibility with your printer. Use one as close to the top of the list as possible. Epson LQ 2 Select your printer model.
Index A C E Accessories ............................................. 67 Alignment problems ................................. 9 ASCII Test .............................................. 88 Auto Carriage return ............................... 35 Auto LF (Line Feed) ........................ 32, 35 Auto Select ............................................. 32 Carbonless continuous forms .......... 78, 79 Card Stock ....................................... 78, 79 Centering printhead position .................
F H Factory defaults, menu mode ................. 27 Font Sample Test .................................... 87 Fonts Embedded Printer Commands ........... 61 Resident ............................................. 77 Selecting ............................................ 39 Forms Tear-Off ....................................... 37 Changing ............................................ 18 Top of Form ................................ 12, 17 Wait Time ...........................................
O Operator Panel Function ......................... 64 Options, purchasing ................................ 65 Orator font .............................................. 77 P Page Length Rear Feed ........................................... 30 Top Feed ............................................ 31 Page Width .............................................. 38 Bottom Feed ...................................... 30 Rear Feed ........................................... 30 Setting in the Printer Menu .........
Resolution (Graphics) ............................. 76 Ribbon Cartridge Replacement Part No. ........................ 66 Replacing ........................................... 41 Ribbon Shield ........................... 42, 62, 84 Roll Paper Stand ..................................... 67 RS-232C Serial Interface ........................ 75 S Security. control printer access ................. 9 Self Tests ................................................. 87 Serial Interface Option ....................
