OKI MICROLINE 421 Matrix Printer
Contents
1. Push Tractor Bottom Mount 6 Both Models Cut Sheet Feeder Q Serial Interface OKiLAN 6120i 10 100 Base T Ethernet Internal Print Server not shown OKiLAN 6020e 10 100 Base T Ethernet External Print Server not shown OkiLAN 6010 10 Base T Ethernet External Print Server not shown 68 Microline 420 421 User s Guide Part Number 70030501 70030701 70023301 70030601 70030801 70030101 70012801 70046501 70036001 70034401 B Printer Control Codes IBM Proprinter Ill Commands 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 IBM Command Backspace Carriage Return Character Pitch Select 10 cpi Select 12 cpi Select 15 cpi Select Condensed Print Character Sets IBM SetI IBM Set II Publisher Slashed Zero Unslashed Zero ASCII BS CR DC2 ESC ESC g ESC SI or SI ESC 7 ESC 6 ESC Z ESC ESC A Decimal 8 13 18 27 58 27 103 27 15 or 15 21 55 27 54 27 33 90 272. 27 56 27 57 27 35 48 27 81 3 27 81 22 17 27 80 49 27 80 48 24 IBM Command Software I Prime Stop Printing Subscript On Superscript On Subscript Superscript Off Top of Form Set at Current Position Underline Printing On Underline Printing Off Uni Directional Print On Uni Directional Print Off Vertical Tab Execute ASCII ESC NUL ESC j ESC S 1 ESC S 0 ESC T ESC 4 ESC 1 ESC 0 ESC U 1 ESC U0 VT Decimal 27 125 0 27 106 27 83 49 27 83 48 27 84 27 52 27 45 49 27 45 48 27 85 49 27 85 48 11 Control Codes 71 Epson FX Commands Epson Command ASCII Decimal Backspace BS 8 Carriage Return Execute CR 13 Character Pitch Select 10 cpi ESC P 27 80 Select 12 cpi ESC M 27 TI Select 15 cpi ESC g 27 103 Begin 10 cpi ESC SI or SI 27 15 or 15 Cancel Condensed Print DC 18 Delete DEL 127 72 Microline 420 421 User s Guide Epson Command Double Height On Double Height Off Double Width On Double Width Off Emphasized Print On Emphasized Print Off Enhanced Print On Enhanced Print Off Epson Set 1 Select Epson Set 2 Select Italic Printing On Italic Printing Off Form Feed ASCII ESC w 1 ESC w 0 ESC W 1 ESC W 0 ESC E ESC F ESC G ESC H ESC t 0 ESC t 1 ESC 4 ESC 5 FF Decimal 27 119 49 27 119 48 27 87 49 27 87 48 27 69 27 70 27 71 27 72 27 116 48 27 116 49 27 52 27 53 12 Epson FX Commands co
3. Oki MICROLINE Standard Oki Command ASCII Decimal Commands co nti nued Paper Out Sensor Off ESCE 1 27 69 49 Paper Out Sensor On ESC E0 27 69 48 Oki Command ASCII Decimal Print Quality Line Feed Commands Select HSD SSD ESC 0 27 35 48 w Carriage Return LF 10 Select NLQ Courier ESC 1 27 49 w o Carriage Return ESC DC2 27 18 Select NLQ Gothic ESC 3 2751 n 144 n 0 to 127 ESC 5n 27 3753 n Select Utility ESC 0 27 48 Reverse ESC LF 27 10 Print Speed Set to Full ESC gt 27 62 Line Spacing Print Speed Set to Half ESC lt 27 60 Set Spacing to 1 6 ESC 6 27 54 Print Suppress On DC3 19 Set Spacing to 1 8 ESC 8 27 56 Print Suppress Off DCH 17 Set Spacing in n 144 n 0 to 127 ESC 9n 273757n Proportional Printing a On ESC Y 27 89 Skip Over Perforation Off ESC Z 27 90 1 3 increments n 2 1 to 9 ESCGnn 2771 nn Reset Clear Print Buffer CAN 24 Default ESC 6 80 277 37 83 48 76 Microline 420 421 User s Guide Oki MICROLINE Standard Commands continued Oki Command Shift In Shift Out Software I Prime Subscript Printing On Subscript Printing Off Superscript Printing On Superscript Printing Off Underline Printing On Underline Printing Off Uni Directional Print On Uni Directional Print Off Vertical Tab Execute ASCII SI SO ESC NUL ESCL ESC M ESC J ESC K ESC C ESC D ESC ESC VT Decimal 15 14 27 125 0 27 76 27 TI 27 74 27 75 27 67 27 68 27 45 27 61 11 Contro
4. 19 17 27 112 49 27 112 48 Epson Command Reset Printer Clear Buffer amp Initialize Clear Print Buffer Skip Over Perforation Cancel Software I Prime Subscript On Superscript On Subscript Superscript Off Underline On Underline Off Uni Directional Printing One Line Only On Off Vertical Tab Execute ASCII ESC CAN ESCO ESC NUL ESC S 1 ESC S 0 ESC T ESC 1 ESC 0 ESC lt ESC U 1 ESC U0 VT Decimal 27 64 24 27 79 27 1250 27 83 49 27 83 48 27 84 27 45 49 27 45 48 27 60 27 85 49 27 85 48 11 Oki MICROLINE Standard Commands Oki Command ASCII Decimal Backspace BS 8 Carriage Return CR 13 Character Pitch Select 10 cpi RS 30 Select 12 cpi FS 28 Select 15 cpi ESC g 27 103 Select 17 1 cpi GS 29 Select 20 cpi ESC 3 27 35 51 Character Sets Standard ESC 0 27 33 48 Block Graphic ESC 1 27 33 49 Line Graphics ESC 2 27 33 50 Publisher ESC Z 27 33 90 Oki Command Slashed Zero Unslashed Zero Double Height On Double Height Off Double Width Printing Emphasized Printing On Emphasized Printing Off Enhanced Printing On Enhanced Printing Off Form Feed Horizontal Tab Execute Italic On Italic Off ASCII ESC o ESC A ESC US 1 ESC US 0 US ESC T ESC I ESC H ESCI FF HT ESC ESC Decimal 27 33 64 27 33 65 27 31 49 27 31 48 31 27 84 27 73 27 72 27 73 12 9 27 33 47 27 33 42 Control Codes 75
5. Forms Tear Off Feature eese eene nennen entente 17 Potential Problems with Software Packages 17 Changing the Forms Tear Off Setting esses 18 Manual Forms Tear Off AA 18 Paper Park toe eA ee aa eee 18 Changing Paper Paths esses 19 Printhead Gap ep uranio Inv eid 21 Print Quality ini rto BE ORE Rd I 22 Character Pitch eremana praet ta esr ee tede t ipit cus eens 23 Printer Reset ee Rene t RR 24 Eimulations z iot Ru e epe 24 Chapter 4 Menu Mode cssccssssccssssccssrsssssrsees ZO Menu Mode Keys e oreet p pe 25 Entering and Exiting Menu Mode AAA 26 Resetting the Menu to the Factory Defaults 26 Printing the Menu Settings see 26 Changing the Menu Settings sess 27 Menu Settings Table 28 Explanations of Menu Items esee 35 Chapter 5 Maintenance eeeeeeeeeeeeees 42 Replacing the Ribbon Cartridge AA 42 Loading Papet iuc e ec oerte Ree RP EHE RENNES EAE PRINS 44 Re rEeed 5 ios aieo e 44 Top Feed Single Sheets sss 53 Clearing Paper Jams iiciin eei seet aE o 55 Re r Feed Paper Jams i utere E E 55 Rear Feed Repeating Paper James 56 Single Sheet Paper Jams sess 58 Cleaning the Housing essere 59 Chapter 6 Troubleshooting 60 General Information eee Ie E Re EE 60 Problems So
6. 4 copies Bottom feed requires optional pull or push tractor Specifications 81 Paper Specifications ML421 Single Cut Sheet Feed Top Only Weight 14 to 24 Ib US Bond 52 6 to 90 g m Width Range 7 2 to 14 3 182 8 to 363 2 mm Single part continuous forms Feed Rear Bottom Weight 12 to 24 Ib US Bond 45 to 90 g m Width Range 3 to 16 76 2 to 406 4 mm Carbonless continuous forms Feed Rear Bottom Weight 9 to 11 Ib Width Range 3 to 16 76 2 to 406 4 mm Interleaf continuous forms Feed Rear Bottom Weight 10 to 12 Ib paper 9 Ib carbon Width Range 3 to 16 76 2 to 406 4 mm Bottom feed requires optional pull or push tractor 82 Microline 420 421 User s Guide Labels Feed Bottom Only Weight Not applicable Width Range 3 to 16 76 2 to 406 4 mm Envelopes single feed Feed Top Only Weight Max 24 Ib Width Range 6 5 to 9 5 165 1 to 241 3 mm Envelopes continuous feed non overlap Feed Bottom Only Weight Max 24 Ib Width Range 6 5 to 9 5 165 1 to 241 3 mm Card stock Feed Bottom Only Weight Max 100 Ib Index 180 g m Width Range Not applicable Environmental Requirements Temperature Operating 41 to 95 F 5 to 36 C Storage 14 to 122 F 10 to 50 C Humidity Operating 20 to 80 RH Storage 5 to 95 RH Electrical Requirements 120 volts ac 6 15 50 or 60 Hz 42 58 W Typical 10 W idle e 230 ac 41596 14
7. Emwulations esee 24 92 Mode PEDE 37 Envelopes ee nets 81 82 Environmental Requirements 83 Epson FX Commands eee 72 714 F Factory defaults menu mode 26 Font Sample Test 0 eee eeeeeeeeee 90 Fonts Embedded Printer Commands 62 Resident emat 80 Selecting 2 nope 40 Forms Tear Off sss 37 Changing seiis esiis asie 18 Top of Form seesseesssssessessseseeseesee 12 17 W it HMen ss het ti 41 Front Panel A ETE 9 Menu Mode 25 G Graphics Leet 30 37 Resolution i e eee 80 GROUP Menu Mode 25 H Height Double Height Printing 41 Hex Dump Mode 92 H midity aie ertet 83 l I Prime eene 32 38 61 IBM Character Set 36 Proprinter III Commands 69 71 Initialization string eese 61 Interleaf Continuous Forms 82 Interleaf continuous forms 81 Interleaved 2 of 5 80 ItalieS die ast 28 41 L Labels 5 tesi Re gd 81 82 Language emere 28 Length Page Rear Feed cse me 29 Top Feed uncesseasbe CUu 30 Limited Operation 9 38 65 Line Spacing iise nietes nonita 38 Bottom Feed AA 29 UE 29 Top Feed eee 30 M Margin Bottom sssss 30 36 Mean Time Between Failures MTBF 78 Mean Time to Repair MTTR 78 Memory Receive Bu
8. Setting in the Printer Menu 30 39 Z Zero character slashed unslashed 28 41 Index 97
9. s transmission speed Bi direction Default Enable Change this setting if you wish to disable bidirectional transmission PnP in Nibble mode Mode Menu 35 Bottom Margin Default Valid Change to Invalid if you want the printer to ignore the bottom margin setting CAUTION Setting the Bottom Margin to Invalid can cause loss of data and damage the printhead by allowing printing without paper Busy Line Default SSD Appears only when the optional Serial Interface is installed If Ready Busy protocol factory default is selected you can choose which line your system monitors for a busy signal e SSD ON select SSD SSD 9V select SSD DTR ON select DTR RTS 9V select RTS Busy Time Default 200 ms Appears only when the optional Serial Interface is installed Sets the length of the busy signal when the Ready Busy protocol factory default is engaged 36 Microline 420 421Users Guide Centering Position Default DEFAULT Used to limit printhead travel when printing narrow columns Select Mode 1 for the narrow carriage printer Select Mode 1 or Mode 2 for the wide carriage printer Character Set Default IBM Set I Epson and IBM emulations only Use this to switch character sets to IBM Set II Character Set Default Standard MICROLINE emulation only Use this to switch the character set to Line Graphics Code Page Default USA Choose the Code Page character set you wish to use USA Can
10. 33 64 27 33 65 69 IBM Proprinter Ill Commands IBM Command ASCII Decimal co ntinued Line Feed Execute GIC CE NCC w Carriage Return LF 10 IBM Command ASCII Decimal n 144 n 1 to 127 ESC 5n 27 37 53 n Double Width On ESCW1 278749 n 216 O0t0255 EsCJIm 2 4n Double Width Off ESCWO0 278748 Reverse ESC alee anaes En a cii Auto Line Feed On ESC 51 27 53 49 Pe ee ne ee A Auto Line Feed Off ESC 50 27 53 48 Emphasized Printing Off ESC F 27 70 m Enhanced Printing On ESC G 2771 Set Bee to 1 8 ESC 0 21 48 Enhanced Printing Off ESCH 27 72 Set Spacing to 7 72 ESC 1 2749 Form Feed FF 12 Set Spacing to n 72 Form Length n 0 to 255 ESCA n 2765n n inches n 1 to 255 ESCCNULn 27670n Store Spacing Set n lines n 1 to 255 ESCCn 2767n by ESCA n ESC 2 27 50 a a a a aa a C I C UR Set Spacing to n 144 Horizontal Tab Execute HT 9 n 1 to 127 ESC 969 n 213151n Italics On ESC G 27 37 71 Set Spacing to n 216 Italics Off ESC H 27 37 72 n 0 to 255 ESC3n 2751n 70 Microline 420 421 User s Guide IBM Proprinter Ill Commands continued IBM Command Overscore On Overscore Off Paper Out Sensor Off Paper Out Sensor On Print Quality Select HSD Print Suppress Mode On ML420 ML421 Print Suppress Mode Off Proportional Spacing On Proportional Spacing Off Reset Clear Print Buffer ASCII ESC 1 ESC 0 ESC 8 ESC 9 ESC 0 ESC Q ETX ESC Q SYN DCI ESC P 1 ESC PO CAN Decimal 27 95 49 27 95 48
11. Block Graphics ML Mode Language Set American French German British Danish I Swedish Italian Spanish I Japanese Norwegian Danish II Spanish II Latin American French Canadian Dutch Publisher Zero Character Slashed Unslashed Code Page USA Canada French Multilingual Portugal Norway BRASCII Abicomp Multilingual 858 ISO 8859 15 28 Microline 420 421User s Guide Menu Settings Table Continued 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 5 4 5 5 6 7 8 8 5 Bottom Feed Line Spacing 6 LPI 8 LPI Form Tear Off Off 500 ms 1 sec 2 sec Skip Over Perforation No Yes Page Width wide model 13 6 8 Page Length 11 11 2 3 12 14 17 5 3 3 25 3 5 4 5 5 6 7 8 8 5 Mode Menu 29 Menu Settings Table Continued Settings Defaults are set in bold italic Top Feed Line Spacing 6 LPI 8 LPI Form Tear Off Off 500 ms 1 sec 2 sec Bottom Margin Valid Invalid Page Width wide model 8 13 6 Page Length 11 11 2 3 12 14 17 5 3 3 25 3 5 4 5 5 6 7 8 8 5 Wait Time 500 ms I sec 2 sec Page Length Control by Actual Page Length by MENU Setting Graphics Bi directional Uni directional 7 or 8 Bit Graphicst 8 7 Receive Buffer Size 1 Line 32K 64K 128K Paper
12. Pitch Default 10 cpi Choose the character width in characters per inch cpi Power Save Time Default 5 min Sets the interval the printer waits for more data before it goes into the power save mode Power Saving must be set to Enable the factory default for this to be effective Power Saving Default Enable Change to Disable if you wish to prevent the printer from entering the Power Save mode after the selected interval Mode Menu 39 Print Mode Default Utility Choose the quality and typeface of printing Switch to NLQ Courier or NLQ Gothic for Near Letter Quality printing If you are printing draft type documents select DRAFT then select either HSD or SSD under DRAFT Mode Both of these Items are in the Font Group Print Registration Default 0 Change the setting as required to obtain the best registration for bi directional printing Print Suppress Effective Default Yes If your system uses the DC1 and DC3 codes for something other than the print suppress mode change the setting to No Proportional Spacing Default No Change the setting to Yes to engage proportional spacing of characters Protocol Default Ready Busy Appears only if the optional Serial Interface is installed Change to SON X Off if that is the type of protocol your system uses 40 Microline 420 421Users Guide Receive Buffer Size Default 64K Selects the amount of memory devoted to holding received data Choosing 1 Line w
13. Rear of the Printer earlier in this chapter O Lock Lever Upper Tractor Cover Pins 1 Make sure the paper lever is forward position marked REAR SS P 4 Pull up on the lock levers to release them m r Maintenance 49 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 5 You will find reference marks 1 in illustration below on the printer for the two most common paper sizes 10 95 16 15 ML420 ML421 6 Move the left tractor to the position to match your paper size and push back on the lever to lock it in place then move the right tractor to fit the width of the paper 50 Microline 420 421 User s Guide 7 Open the tractor covers and place continuous forms paper on the first two pins of either tractor then close the left tractor cover 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 8 Adjust the position of the right tractor to center the holes in 9 Reinstall the sheet guide 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 Maintenance 51 10 Place the wire guide 1 in the sheet guide on the pull up roller assembly 52 Microline 420 421 User s Guide 11 Press FF
14. easier to look them up Some items only appear when optional accessories are installed others appear in several groups in the menu 7 or 8 Bit Graphics Default 7 Change this setting to 8 if your system uses 8 bit graphics 7 or 8 Bit Data Word Default 8 Change this setting to 7 if your system uses 7 bit data word lengths Auto CR Default No IBM emulation only If you want the printer to automatically add a carriage return when a Line Feed is received at the end of a line change the setting to Yes Auto LF Default No If your printout is consistently double spaced select No if it overprints select Yes Auto Feed XT Default Invalid Epson emulation only In the Epson emulation the XT signal on pin 14 of the parallel interface can control automatic line feed Some interface cables are wired in such a way that automatic line feed is always in effect this item eliminates this potential problem If your system uses pin 14 of the parallel interface to control automatic line feed change the setting to Valid Auto Select Default No Determines whether or not your printer will automatically be selected after you load in paper With the factory default engaged the printer will be deselected so that you can set the Top of Form If you always use the same Top of Form position change the setting to Yes Baud Rate Default 9600 bps Appears only if optional Serial Interface is installed Set this to match your system
15. 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 Contents SEENEN Chapter 1 Introduction cccsssccssssccsssscsssssseeee 7 Printer Features ceeds nece terc Rr ere vere 7 Saving Money Forms Tea Of 8 Savine KEE 8 Internet Support essere 8 Paper Patk scene ee etta ede mentes 8 Operation TIDs seeding ente e aa 9 Top OF Form TOR aic tr tree tere tete eset 9 Turning the Platen Knob sene 9 Controlling Access to the Printer eee 9 Chapter 3 Using Your Printer 10 Parts Identification Rear Feed Continuous Forms 10 Parts Identification Top Feed Single Sheets 11 Top of Form TOB itin e mrt ee POR e ris 12 Top of Form TOF and Forms Tear Off sss 12 Determining if Forms Tear Off is Off or On 13 Setting Top of Form TOF Forms Tear Off OFF Default Setting esses 14 Setting Top of Form TOF Forms Tear Off Set to ON sess 15 Temporarily Changing the Top of Form Position 16 Resetting Top of Form to the Factory Default 16
16. on and selected Press SEL MENU 1 to take the printer off line The SEL light goes out 2 Press and hold SHIFT 2 then Note When you begin pressing the Micro Feed key the printhead will move to the right Press LF Micro Feed Down 3 to set the TOF higher the paper moves down Press FF LOAD Micro Feed Up 4 to set the TOF lower the paper moves up 3 When you have the TOF set where you want it press and hold SHIFT 2 then press QUIET TOF 7 to engage the new setting The printhead moves back to the left margin 4 Press SEL MENU 1 to save the setting and place the printer back on line Note To reset the Top of Form to the factory default see Resetting Top of Form to the Factory Default later in this chapter 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 o SEL D EXIT GROUP ITEM SET POWER ALARM MENU Note The first line prints at the red line 1 of the plastic paper shield on the printhead With paper loaded and the printer on and selected 1 Press PARK 6 to park the paper The SEL light goes off and the red alarm light comes on 2 Press 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 TE
17. printer Carefully read all setup and operating instructions Be sure to save all documents for future reference Read and follow all warning and instruction labels on the printer itself Place your printer on a firm solid surface If you put in on something unsteady it might fall and be damaged Avoid overheating the printer Do not place it on a soft surface such as a rug sofa or bed The vents may be blocked causing the printer to overheat The printer must be installed near a power outlet which will remain easily accessible Be certain that your power source matches the rating listed on the back of the printer If you aren t sure check with your dealer or with your local power company Your printer has a grounded 3 prong plug as a safety feature It will only fit into a grounded outlet If you can not plug it in chances are that you have an older non grounded outlet Contact an electrician to have it replaced with a grounded outlet Do not use an adapter to defeat the grounding To avoid damaging the power cord do not put anything on it or place it where it will be walked on If the cord becomes damaged or frayed replace it immediately If you re using an extension cord or power strip with the printer make sure that the total of the amperes required by all the equipment on the extension is less than the extension s rating Generally the total ratings of all equipment plugged into any one power line should n
18. the printer off line The SEL light goes out 2 Press and hold SHIFT 2 then press the RESET CHARACTER PITCH key Important Pressing SHIFT RESET reinitializes the printer but does not affect any menu settings and does not reset the printer to the factory defaults For information on resetting the printer to the factory defaults see Resetting the Menu to the Factory Defaults later in this chapter 24 Microline 420 421 User s Guide Oki MICROLINE Changing Emulations 1 Make sure paper is loaded 2 Press and hold SHIFT 2 then press SEL 1 3 Press LF 3 The following line prints Printer Control Emulation Mode IBM PPR 4 Press TEAR 4 repeatedly until the emulation you wish to select prints in the right hand column 5 Press and hold SHIFT 2 then press SEL 1 to save your setting and exit the Menu Mode l 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 FF LOAD TEAR quier W feed mE pd EXIT GROUP ITEM PRINT POWER ALARM MENU p 0 olo o Q GROUP Key Prints the next Group in the Menu With the SHIFT key
19. time processing between portions of data it feeds to the printer change the setting to Invalid to keep your printer from dumping the received data while it is waiting for more Wait Time Default 1 sec Sets the amount of time the printer will wait for more data before moving to the form tear off position Zero Character Default Slashed If you do not want the printer to use a slash to distinguish the number zero from the capital letter O change the setting to Unslashed Mode Menu 41 l Chapter 5 Maintenance Replaci ng the Ribbon Ca rtridge 1 Make sure the printer is turned OFF 2 Open the access cover and center the printhead Important Make sure you have the correct replacement ribbon for the your printer The wrong ribbon will not print when installed in your printer Look for the printer model number on the ribbon package Ribbon Cartridge Handling e Leave unused ribbon cartridges in their packages until needed e Careful the ribbon ink may cause permanent stains Ribbon ink on skin or clothing can usually be removed with soap and water 42 CAUTION The printhead may be HOT 3 Swing the used ribbon cartridge up off the printhead lift it out and discard it 4 Unpack the new ribbon cartridge and install it Important Do not remove the ribbon shield 1 from the ribbon 5 Turn the take up knob 1 in the direction of the arrow to take up any ribbon slack 6 Close the access cov
20. 1 1 Compliant Loading Paper e Requires USB 1 1 cable maximum length 19 7 ft 5 m not For instructions on loading paper see Loading Paper in supplied Chapter 5 e Printer has USB B receptacle 1 Make sure the printer and computer are both turned off 2 Attach a suitable USB cable to the printer Then attach the cable to your computer 3 Turn the computer and printer back on Installation 89 Testing the Printer Font Sample Test Rolling ASCII Test Hexadecimal Dump Mode Font Sample Test Ax As Wide carriage Model ML421 If you are using 8 5 paper to Important run the tests make sure the paper width selection in the printer menu is set to 8 5 inches Otherwise printing on the platen may damage the printer See Chapter 4 Menu Mode for more information 90 Microline 420 421 User s Guide 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 Important Wide carriage Model ML421 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 t
21. 2 Maintenance 59 l Chapter 6 Troubleshooting General Info rmation Note Settings in your software application will normally override any settings in your printer driver Here are some general things to check before proceeding with detailed troubleshooting Printer driver settings normally override settings from Is the printer plugged in and turned on the printer menu or printer front panel Are the connections power and interface secure Is the product being operated under the proper ambient conditions Does the paper being used meet the specifications for this product Is the paper properly installed Is the ribbon properly installed Is an Oki ribbon being used Is the printhead gap correctly set Are the correct printer drivers being used for the printer 60 Problems Solutions Problem My word processor files do not print the way I have the menu and front panel set Solution Remember Settings in your software application can override settings in your printer driver Your printer driver settings can override any settings from the printer menu or printer front panel Before sending a file to the printer many word processors send either an initialization string or an I Prime signal to the printer The initialization string contains codes that override the panel and menu settings To change your printer to ignore the reset code enter the Menu Mode go to the Set Up gro
22. 96 50 or 60 Hz 2 58 W Typical 10 W idle Physical Specifications Note Height dimensions do not include the acoustic cover ML420 Size WxDxH Weight ML421 Size WxDxH Weight 17 1 x 16 1 x 6 434 x 409 x 153 mm 16 7 lbs 7 6 kg 23 1 x 16 1 x 6 588 x 409 x 153 mm 21 1 Ibs 9 6 kg Specifications 83 bg D Installation Location O Printer Place your printer on a firm solid surface O Ribbon Cartridge Allow enough space around the printer to easily access the Power Cord platen knob and the various paper feed paths Make sure a suitable grounded power outlet is available nearby Unpack If any items are missing contact your dealer immediately Keep your packing materials and carton in case you ever need to ship or transport the printer nterface cable and paper are sold separately 84 1 Remove any packing tape then grasp the tabs 1 at either 3 Remove the shipping restraint from the pull up roller end of the access cover and pivot it toward the front of the assembly 1 printer as far as it will go Installation 85 4 Use the tabs 1 to lift and remove the sheet guide then 5 Reinstall the sheet guide insert the clips on either side of the remove the shipping restraint separator into the notches marked with a triangle then press down to secure the separator in place 86 Microline 420 421 User s Guide Install the Ribbon Cartridge Importan
23. AR 5 The paper moves to the current TOF 5 Keep holding TEAR then press and hold SHIFT 2 and release TEAR 6 Continue to hold SHIFT then Note When you begin pressing the Micro Feed key the printhead will move to the right Press LF Micro Feed Down 3 to set the TOF higher the paper moves down e Press FF LOAD Micro Feed Up 4 to set the TOF lower the paper moves up 7 When you have the TOF set where you want it press and hold SHIFT 2 then press QUIET TOF 7 to engage the new setting The printhead moves back to the left margin 8 Press SEL MENU 1 to save the setting and place the printer back on line Note To reset the Top of Form to the factory default see the next page Using Your Printer 15 Temporarily Changing the Top of Form Position Important Do not use the platen knob to change the Top of Form If you turn the platen knob when the printer is turned on the Top of Form misaligns Always turn the printer off before turning the platen knob To move the Top of Form position lower for one page only 1 Press SEL to deselect the printer 2 Press LF to lower the position of the Top of Form 16 Microline 420 421 User s Guide Resetting Top of Form to the Factory Default The factory default setting for the Top of Form where the printing should begin is 1 down from the top of the page To reset the Top of Form to the factory default 1 Remove paper from the paper path 2 Turn th
24. Double Quadruple Single Double Quadruple Max Resolution Dots per inch 60 x 216 dpi 120 x 216 dpi 240 x 216 dpi 72 x 72 dpi 144 x 144 dpi 288 x 144 dpi Available Fonts Courier Gothic Gothic Gothic Gothic Bar Codes Code 39 e UPC A UPC E EAN 8 EAN 13 Interleaved 2 of 5 Code 128 Postnet Paper Thickness Tractor Feed Rear Feed 0 014 0 36 mm maximum Bottom Feed 0 017 0 44 mm max Requires optional push or pull tractor Paper Specifications ML420 Labels Feed Bottom Only Single Cut Sheets Weight Not applicable Feed Top Only Width Range 3 to 10 76 to 254 mm Weight 14 to 24 Ib US Bond 52 6 to 90 g m Width Range 7 2 to 8 5 183 to 216 mm Envelopes single feed Feed Top Only Single part continuous forms SEH Weight Max 24 Ib Feed Rear Bottom Width Range 6 5 to 9 5 165 to 241 mm Weight 12 to 24 Ib US Bond 45 to 90 g m Width Range 3 to 10 76 to 254 mm Envelopes continuous feed non overlap type Feed Bottom Only Carbonless continuous forms orig 4 copies orig ples Weight Max 24 Ib Feed Rear EENG Width Range 6 5 to 9 5 165 to 241 mm Weight 9 to 11 Ib Width Range 3 to 10 76 to 254 mm Card Stock Feed Bottom Weight Max 100 Ib Index 180 g m Feed Rear Bottom Width Range Not applicable Weight 10 to 12 Ib paper 9 Ib carbon Width Range 3 to 10 76 to 254 mm Interleaf continuous forms orig
25. Helpful Hints 9 l Chapter 3 Using Your Printer Parts Identification Rear Feed Note For rear feed the paper lever must be forward Continuous Forms Note The serial number of your printer is on a label on the back beside S N O Sheet Guide Paper Lever On Off Switch Q Platen Knob Control Panel Acoustic Cover Access Cover 10 Parts Identification Top Feed Note For single sheet printing the paper lever must be in the middle position Single Sheets Q Paper Guides Sheet Guide Paper Lever On Off Switch Platen Knob Control Panel Acoustic Cover open Using Your Printer 11 Top of Form TOF Important If you turn the platen knob when the printer is on the Top of Form misaligns Always shut the printer off before turning the platen knob Note The factory default setting for the Top of Form where the printing should begin is 1 down from the top of the page Top of Form sets the print start position for the printer It is adjustable in increments of 1 144 of an inch The amount of adjustment is limited to avoid paper jams The first line prints at the red line of the plastic paper shield 1 on the printhead 12 Microline 420 421 User s Guide Top of Form TOF and Forms Tear Off Note Your software may print the first line of print above or below where TOF is set You may need to adjust the TOF to meet your software s requirements
26. 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 ener ey ee o P 2 N 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 Maintenance 53 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 54 Microline 420 421 User s Guide 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 I down from the top of the page To change the setting see Top of Form TOF in Chapter 3 Clea ri ng Pa per J ams 5 Lift the sheet guide 1 and reload paper Make sure you lock the tractor covers Rear Feed Paper Jams Im HEU 1 Turn off the pri
27. OKI Microline 420 424 User s Guide Oki Network Solutions for a Global Society 59348301 ML 420 421 User s Guide P N 59348301 Revision 1 2 February 2006 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 Copyright 2002 2007 by Oki Data All rights reserved Written and produced by the Oki Data Training and Publications Department Web Site http www okiprintingsolutions com Trademark Information OKI and MICROLINE are registered trademarks of Oki Electric Industry Company Ltd Epson is a registered trademark of Epson America Inc IBM is a registered trademark of International Business Machines Corp Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and other countries Safety Your Oki printer has been carefully designed to give you years of safe reliable performance As with all electrical equipment there are a few basic precautions you should take to avoid hurting yourself or damaging the
28. Out Override No Yes Appears only when the optional Roll Paper Stand is installed Appears only when the MICROLINE emulation is selected 30 Microline 420 421User s Guide Menu Settings Table Continued Settings Defaults are set in bold italic Setup cont Print Registration 1 Print Registration 2 7 or 8 Bits Data Word Operator Panel Function Reset Inhibit Print Suppress Effective Auto LF Auto CR CSF Bin Select Print DEL Code 0 range to 0 25 mmm to the right or left set in 0 05 mm increments press SEL to shift registration to the left press SHIFT SEL to shift registration to the right 0 range to 0 25 mmm to the right or left set in 0 05 mm increments press SEL to shift registration to the left press SHIFT SEL to shift registration to the right 8 7 Full Operation Limited Operation No Yes No Yes No Yes No Yes Bin 1 Bin 2 No Yes Appears only when MICROLINE emulation is selected T Appears only when the IBM emulation is selected Appears only if the optional Cut Sheet Feeder is installed Mode Menu 31 Menu Settings Table Continued Settings Defaults are set in bold italic SI Select Pitch 10 cpi 15 cpi 17 1 cpi SI Select Pitch 12 cpi 12 cpi 20 cpi Time Out Print Valid Invalid Auto Select No Yes Centering Position DEFAULT MODE 1 MODE 2 CSF Typet Wide Narrow Power Saving Enable Disable Power Save Time 5 min 10 min 15 m
29. The Top of Form and Forms Tear Off settings of your printer interact How you set the Top of Form depends on whether Forms Tear Off is On set to 500 ms 1 sec or 2 sec or OFF the factory default setting Determining if Forms Tear Off is Off or On There are two ways to determine the status of the Forms Tear Off menu setting Print the Menu Use the TEAR key FF LOAD TEAR Miror ca mE Misa EXIT GROUP ITEM PRINT POWER ALARM rd To print the Menu 1 Make sure paper is loaded 2 Hold SHIFT 2 then press SEL 1 to enter the Menu Mode 3 Press PARK 4 to print the menu 4 Look for the Form Tear Off setting in the paper feed group you are using Rear Feed Bottom Feed or Top Feed Forms Tear Off appears in the Top Feed group only if the optional Roll Paper Stand is installed To use the TEAR key 1 2 Make sure paper is loaded Press TEAR 3 f the paper moves up Forms Tear off is off If the paper moves down Forms Tear off is on Using Your Printer 13 Setting Top of Form TOF Forms Tear Off OFF Default Setting Important If you turn the platen knob when the printer is on the Top of Form misaligns Always turn the printer off before turning the platen knob 0 SEL D EXIT GROUP ITEM SET POWER ALARM MENU Note The first line prints at the red line 1 of the plastic paper shield on the printhead 14 Microline 420 421 User s Guide With paper loaded and the printer
30. ada French Multilingual Portugal Norway BRASCII Abicomp Multilingual 858 or ISO 8859 15 CSF Bin Select Default Bin 1 Appears only when the optional Dual Bin Cut Sheet Feeder is installed Use this to switch to Bin 2 as the default CSF Type Default Wide To avoid paper jams change this setting to Narrow if you are using the optional Cut Sheet Feeder on the wide model ML421 printer Diagnostic Test Default No Appears only when the optional Serial Interface is installed Select yes to perform a diagnostic test of the serial interface DRAFT Mode Default HSD Applies only when the Print Mode is set to DRAFT Selects the draft mode to be used HSD High Speed Draft or SSD Super Speed Draft DSR Signal Default Valid Appears only when the optional Serial Interface is installed Used with the Ready Busy protocol factory default to select the way your system handles the DSR signal DTR Signal Default Ready on Power Up Appears only when the optional Serial Interface is installed Change to Ready on Select if the DTR signal is required when the printer is selected leave as Ready on Power Up if the DTR signal is required when the printer is turned on Emulation Mode Default IBM PPR Selects the printer command set emulation you want to engage ESC SI Pitch Default 17 cpi Sets the character pitch used when the ESC SI command is received Form Tear Off Default Off Choose 500 ms 1 sec or 2 se
31. c to turn the Form Tear Off feature on and to set the time interval for the printer to wait before advancing the paper Graphics Default Bi directional Change to uni directional graphics for better registration but slower printing With this set for bi directional you can optimize the registration using the Print Registration setting in the Menu Mode Menu 37 I Prime Default Buffer Print Determines what the printer will do when it receives the I Prime signal from the software Buffer Print prints out the buffer contents before resetting Buffer Clear dumps the buffer contents immediately Invalid causes the printer to ignore the I Prime command Select this setting if you wish to enter settings through the printer s control panel which will not be automatically overridden by the software s settings when the I Prime signal is sent Language Set Default American Replaces certain standard symbols with special characters used in foreign languages Line Spacing Default 6 Ipi Change to 8 lines per inch lpi to get more lines on a page 38 Microline 420 421Users Guide 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 al
32. e 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 Press SET until the setting you want appears in the third column 3 Press and hold SHIFT then press SEL to exit the Menu Mode and save your settings Important If you turn off the printer without first exiting the Menu Mode the changes you have made will be lost Mode Menu 27 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 Item Settings Defaults are set in bold italic Emulation Mode IBM PPR Epson FX ML Font Print Mode LQ Courier LQ Roman LQ Swiss LQ Swiss Bold LQ Orator LQ Gothic LQ Prestige Utility HSD DRAFT Mode HSD SSD Pitch 10 cpi 12 cpi 15 cpi 17 1 cpi 20 cpi Proportional Spacing No Yes Style Normal Italics Size Single Double Symbol Sets Character Set o Set I Set II Epson and IBM mode Standard Line Graphics
33. e printer off 3 Press and hold PARK QUIET TOF while turning on the printer 4 Reload paper Forms Tear Off Feature Note This feature is normally turned off To use Forms Tear Off you must enter the menu and change the setting to the desired time interval see next page The Forms Tear Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer It can be used for rear feed continuous forms bottom feed continuous forms with the optional push tractor installed or for top feed roll paper with optional roll paper stand installed When the printer is turned on the paper feeds to the tear off position When data is received the paper automatically moves down to the print position TOF and printing begins Note You can also move the paper down to the print position manually by pressing TEAR When printing stops Forms Tear Off automatically moves the paper to align the perforation with the tear bar located under the access cover after the time interval which you selected through the menu Paper remains in the tear off position until the printer receives more data Then the paper moves back down for printing Notes The status of the Forms Tear Off menu setting affects how you Set the Top of Form see Top of Form TOF and Forms Tear Off earlier in this chapter Do not use Forms Tear Off with labels or multipart forms Forms Tear Off cannot be used wh
34. en the optional pull tractor is engaged Potential Problems with Software Packages If Forms Tear Off is set to On and the software package you are using pauses for a long enough interval while sending data to the printer Forms Tear Off may be activated No data is lost but this causes uneven print registration due to the paper movement If this occurs use the menu to turn off this feature then use the TEAR key to move the paper up to the tear position manually see next page Using Your Printer 17 Changing the Forms Tear Off Setting Note The default setting for Forms Tear Off is OFF io E Micro Feed li Micro Feed TOF Down Up EXIT GROUP ITEM SET PRINT POWER ALARM MENU To change the Forms Tear Off setting 1 Press SHIFT 2 SEL 1 2 Press GROUP 3 repeatedly until the Rear Feed or Bottom Feed group shows in the first column of the printed line depending on which paper feed you are using 3 Press ITEM 4 repeatedly until Form Tear Off appears in the second column Rear Feed Form Tear Off Off 4 Press SET 5 until the time interval you wish to select appears in the third column Rear Feed Form Tear Off 1 Sec 5 Press SHIFT 2 SEL 1 to exit Menu Mode and save the setting 18 Microline 420 421 User s Guide Manual Forms Tear Off If you don t wish to engage the Forms Tear Off feature you can advance rear feed continuous forms loaded on the built in tractor Or bottom feed c
35. er and turn the printer back on CAUTION If ribbon should contact the eyes Flush eyes with large quantities of water for 15 minutes keeping eyelids open with fingers Seek medical attention If ribbon should contact the skin Wash thoroughly with soap and water For more information See the Material Safety Data Sheet in your Warranty Regulatory and Safety Information booklet Maintenance 43 Loading Paper Rear Feed Note If you have any paper in the paper path remove it before installing rear feed paper O Lock Lever Upper Tractor Cover O Pins 44 Microline 420 421 User s Guide Loading Rear Feed Paper from the Back of the Printer Note These instructions assume you have ready access to the back of the printer If you do not skip down to Loading Rear Feed Paper from the Front of the Printer 1 Make sure the paper lever is forward position marked REAR P 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 Maintenance 45 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
36. er over three times to make a page four sheets thick Then load it on the tractors and close and lock the 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 Then use the platen knob to back the paper out 10 Turn the printer on and press FF LOAD Maintenance 57 Single Sheet Paper Jams 3 Open the access cover 1 and remove the pull up roller 1 Turn off the printer assembly 2 2 Use the platen knob to back the paper out I 4 Remove any torn pieces from around the carriage 5 Reinstall the pull up roller assembly and close the access cover 58 Microline 420 421 User s Guide Cleaning the Housi ng 4 Use aclean dry cloth to dust around the carriage shaft and 3 platen Remove any loose bits of paper 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 5 Reinstall the pull up roller assembly and close the access cover 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 A assembly
37. ffer Size 78 MENU light einer 25 Menu Mode sieci nna r 25 Changing Settings 27 Entering nme penses 26 ExitiDg aie den 26 Front Panel keys esse 25 Printing the Menu Settings 26 Reset to factory defaults 26 Settings Table 28 42 Index 95 O Oki MICROLINE Standard Commande 75 717 Operator Panel Function esseeeeseeeeeees 65 Options eee eos 66 P Page Length Rear Eeed esie 29 Top Feed ttes 30 Page Width ete 39 Bottom Feed sss 29 Rear Feed tette 29 Setting in the Printer Menu 30 39 Top Feed tete 30 Paper Cut Sheet eset 68 Single Sheet ssssssss 53 Static ete 65 Th ckness rrt 80 Weight eese aet ettet 82 WAdths usn 30 39 82 Paper Jams eene 64 66 Paper beyet osa eder ees 64 Paper Out inneren 65 UR D EE 30 39 96 Microline 420 421 User s Guide Paper Park ett 18 Paper Path switching 19 Parallel Interface sse 32 I PRIME Signal 61 Parts replacement purchasing 66 Perforation skip over eseeeees 29 41 Pitch character ssesse 28 39 PlatenKnob part number 67 Postnet iue 80 Power rang 3 Print Method eee 78 Print Mode 28 40 P
38. ful area of Oki Data s web site designed to help you personalize the information and service you get from Oki Data Paper Park Your printer s paper park feature allows you to print a single sheet cut sheet page without removing continuous feed paper from the printer For more information see Paper Park in Chapter 3 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 For more information see Top of Form TOF in Chapter 3 Turning the Platen Knob Important Always turn the printer off before turning the platen knob If you turn the platen knob when the printer is on the Top of Form misaligns Controlling Access to the Printer You can control access to the printer by changing the setting for the Operator Panel Function in the Menu from Full Operation the factory default to Limited Operation When Limited Operation is selected the PRINT QUALITY and CHARACTER PITCH keys don t work This prevents these settings from being changed from the control panel when several people are using the printer For more information see Changing the Menu Settings in Chapter 3
39. he printer See Chapter 4 Menu Mode for more information The Rolling ASCII Print Test produces a continuous printout of all 96 ASCII characters in a rolling pattern in whatever typeface is selected default LQ Courier The top of the printout shows the Printer Model Emulation Country Code and Firmware Revision Level 1 Make sure continuous forms paper is loaded 2 Turn the printer off 3 Press and hold the QUIET TOF key while turning the printer back on If the printer comes on without starting the Rolling ASCII test print you did not hold the QUIET TOF key long enough The printer prints the rolling ASCII text page after page 4 Press SEL to end the test Installation 91 Hexadecimal Dump Mode When the printer is placed in the Hexadecimal Dump Mode all data received including text and printer commands is printed in both hexadecimal and ASCII format For example the following line of BASIC code LPRINT CHRS 27 0 CHR 30 This is an example of a hexadecimal dump would print like this 1B 30 18 54 68 69 73 20 69 73 20 61 6E 20 65 78 0 This is an ex 61 6D 70 6C 65 20 6F 66 20 61 20 68 65 78 61 64 ample of a hexad 65 63 69 6D 61 6C 20 64 75 6D 70 2B op eA ecimal dump Note In the ASCII format all non printable characters are represented by a period To engage the Hexadecimal Dump Mode 1 Make sure paper is loaded 2 Turn off the printer 3 Hold the SEL and FF LOAD keys for several seconds
40. ill tie up your computer while printing but if you abort the print job the printer will stop much sooner Reset Inhibit Default No Select Yes if you wish the printer to ignore the reset command sent by software This prevents your software from changing the settings you make through the front panel controls or through printer commands Note This will also prevent your software from clearing out existing settings when you finish printing one document and switch to another Serial Data 7 8 Bits Default 8 Bits Appears only if the optional Serial Interface is installed Change to 7 Bits if you systems uses a 7 bit data format SI Select Pitch 10 cpi Default 17 1 cpi IBM emulation only Sets the pitch to be engaged when the printer control panel is set for 10 cpi and the SI command is received SI Select Pitch 12 cpi Default 20 cpi IBM emulation only Sets the pitch to be engaged when the printer control panel is set for 12 cpi and the SI command is received Size Default Single Change to Double for double width and height printing Skip Over Perforation Default No Change to Yes if you want the printer to go to the next page when it comes within 1 25 mm of the bottom of the page Keep it set to No if your software has its own page formatting controls Style Default Normal Change to italics if you want the printed characters to be slanted Time Out Print Default Valid If your software spends a long
41. in 30 min 60 min Parallel I F I Prime Buffer Print Buffer Clear Invalid Pin 18 5V Open Auto Feed XT Invalid Valid Bi Direction Enable Disable Appears only when the IBM emulation is selected t Appears only when optional Cut Sheet Feeder is installed Appears only if the Epson emulation is selected 32 Microline 420 421User s Guide Menu Settings Table Continued Settings Defaults are set in bold italic Serial IF Parity None Odd Even Serial Data 7 8 Bits 8 Bits 7 Bits Protocol Ready Busy X On X Off Diagnostic Test No Yes Busy Line SSD SSD DTR RTS Baud Rate 19200 bps 9600 bps 4800 bps 2400 bps 1200 bps 600 bps 300 bps DSR Signal Valid Invalid DTR Signal Ready on Power Up Ready on Select Busy Time 200 ms 1 sec Appears only when the optional Serial Interface is installed Mode Menu 33 Menu Settings Table Continued Settings Defaults are set in bold italic CSF Bin 1 Line Spacing 6 LPI 8 LPI Bottom Margin Valid Invalid Page Width Wide model 8 13 6 Page Length 11 11 2 3 12 14 17 5 3 5 4 5 5 6 7 8 8 5 CSF Bin 2 Line Spacing 6 LPI 8 LPI Bottom Margin Valid Invalid Page Length 11 11 2 3 12 14 17 5 3 5 4 5 5 6 7 8 8 5 Appears only when the optional Cut Sheet Feeder is installed 34 Microline 420 421User s Guide Explanations of Menu Items These explanations are in alphabetical sequence to make it
42. in characters per second High Speed Draft HSD Mode 507 cps Utility Mode 380 cps Near Letter Quality NLQ Mode 95 cps Super Speed Draft SSD Mode 570 cps This rugged 9 pin printer can meet the needs of harsh and demanding environments Oki Data on the Internet The Oki Data Web Sites provide the most current information available on your printer On line documents are available for viewing and downloading via Oki Data s Web Sites You may reach Oki Data via the Internet at www okidata com my okidata com Chapter 2 Helpful Hints Saving Money Forms Tear Off The Forms Tear Off feature allows a printed continuous forms page to be torn off without wasting paper or adjusting the printer When printing stops Forms Tear Off automatically moves the paper to align the perforation with the tear bar located under the access cover after a time interval which you select through the menu Paper remains in the tear off position until the printer receives more data Then the paper moves back down for printing Note This feature is normally turned off Important Forms Tear Off and the Top of Form settings interact For more information see Top of Form TOF and Forms Tear Off in Chapter 3 Saving Time Internet Support Oki Data provides support via the Internet www okidata com is the main web site the gateway to Oki Data s products and services http my okidata com is a power
43. indicates a paper jam Press the SEL key and correct the paper jam situation See Clearing Paper Jams in Chapter 4 Problem The printer needs paper The ALARM is not on and I can t load paper Solution 1 Press and release the SEL key 2 Press and hold the SHIFT key and press the RESET CHARACTER PITCH key The ALARM light comes on and you can now load paper Problem Continuous form paper sticks to the sheet guide Solution In cold dry weather static charges can build up and make the paper cling to the sheet guide Try moving the paper guides together so that the paper rests on the guides rather than on the separator Problem The Print Quality and Character Pitch keys on the front panel don t work Solution The Operator Panel Function in the printer menu can be used to disable these buttons Limited Function If the printer is part of a customized system or if it is used by a number of people the system manager may have used this option to make sure the printer is always set properly Check with your system manager before changing any menu settings Troubleshooting 65 Appendix A Parts amp Accessories Purchasing Parts amp 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
44. ip Over Perforation 29 Software Embedded commands 62 Matching drivers to emulations 62 Software vs printer settings 61 Specifications seseseeee 78 Standard Character Set 28 Symbol Sets sess 28 38 T Temperature Specifications 83 Tests e LEE 91 Font Sample Test 90 Hex Dump ee eee 92 Thickness Paper sess 80 Time Out a sce eee eee os ae 32 41 Top F ed eet 81 84 Bottom Maren 30 Line Spacing esee 30 Pull Tractor 5 tts 68 Single Sheet 5 eese neun 11 Top of Form n enne 35 Forms Tear Off 8 12 17 Paper Shield 9 12 Reset to factory default 16 ee EES 12 Standard Setting 12 16 Typefaces t eret eerte 28 Selecting dette 40 U Uni directional printing graphics 30 Utility Front Panel Light 80 Print Speeds 0 nets 7 Utility Mode Print Quality 22 W Wait mme inerte 30 41 Weight Paper se 82 Width Ch r ctet 2o ote ro 39 Double width printing 41 Page Bottom Feed 29 Rear Feed uenenum 29 Top Feed 5 eee 30 Paper i t ehm 82
45. is turned off before you open the access cover To adjust the gap open the access cover and move the blue lever 1 to the recommended setting from the table Setting 1 2 3 4 5 Media Regular paper 2 part form with carbon 3 part form with carbon 4 part form with carbon Envelopes or extra thick paper Note When the head gap is set to 2 3 4 or 5 the printer automatically slows down for better print quality with multipart forms Using Your Printer 21 Print Quality HSD High Speed Draft Lower quality higher speed 507 cps Important Gaie al l Front panel settings for print quality and character pitch are poe ee normally overridden by software commands SSD Super Speed Draft Lowest quality highest speed 570 cps Gothic typeface only NLQ Near Letter Quality Highest quality slowest speed 95 cps PRINT QUALITY Courier or Gothic Press PRINT QUALITY 1 to select UTL Utility the default Medium quality medium speed 380 cps Gothic typeface only 22 Microline 420 421 User s Guide Character Pitch Important Front panel settings for character pitch are normally overridden when the SI command is received from your software o CHARACTER PITCH Character pitch determines how many characters will print on each line You can choose a specific fixed width for each character in characters per inch CPI or Proportional The higher cpi settings are often used for sp
46. l Codes 77 C Specifications Note Specifications are subject to change without notice Print Method Impact dot matrix Printhead 9 pins 0 30 mm 0 0118 diameter with thermal protection Interfaces Standard Centronics parallel IEEE 1284 compliant USB 1 1 Optional RS 232C Serial Ethernet Print Servers 61201 10 100 Base T Internal 6020e 10 100 Base T External 6010e 10 Base T External 78 Receive Buffer Size Maximum 128K Reliability Ribbon Life 4 million characters on average 10 cpi utility Printhead Life 400 million characters average in 10 cpi utility mode at 25 duty and 35 page density Mean Time Between Failures MTBF 20 000 hours at 25 duty cycle and 35 page density Mean Time to Repair MTTR 15 minutes Emulations co resident IBM Proprinter III Epson FX Oki MICROLINE Standard Print Speed Mode Super Speed Draft SSD High Speed Draft HSD Utility Near Letter Quality NLQ Speed Characters per Second 570 cps 507 cps 380 cps 95 cps Characters per Line cpl Setting 10 cpi 12 cpi 15 cpi 17 1 cpi 20 cpi ML420 80 cpl 96 cpl 120 cpl 137 cpl 160 cpl ML421 136 cpl 163 cpl 204 cpl 233 cpl 272 cpl Specifications 79 Graphics Resolution Emulation IBM Epson Oki MICROLINE Resident Fonts Print Quality Near Letter Quality Utility High Speed Draft Super Speed Draft 80 Microline 420 421 User s Guide Density Single
47. lutions eene 61 Purchasing Parts amp Accessories sese 66 Replacement Parts 5 osea ee d t eher 67 ACCESSO ES 4 cie e eoe n ieri dte D IIR 68 6 Microline 420 421 User s Guide Appendix B Printer Control Codes 69 IBM Proprinter III Commands AA 69 Epson FX Commande 72 Oki MICROLINE Standard Commands esses 75 Appendix C Specifications 78 Appendix D Installation OF LO0cat10D Sea aeta aeter dp edes 84 Unpack n it ee to cte etie pte 84 Install the Ribbon Cartridge ee 87 Power Connection eei reete e ee 88 Computer Connections nennen nennen 88 Parallel EPT DEBE 1284 RR Ete perm 88 USB Specification 1 1 Compliant sse 89 LEo ading Paper 1h ree Renee 89 Testing the Printer stanc t n E 90 Font Sample E 90 Rolling ASCH Test 91 Hexadecimal Dump Mode eee 92 Emul tions 3 I neo din ik gin dean 92 Printer Re 92 Loading the OKI Driver 93 Using a Compatible Driver esee 93 Inge 71 Leg 1 Introduction Printer Features Super reliable durable operation 20 000 hours Mean Time Between Failures MTBF at 25 duty cycle and 35 page density Advanced paper handling with built in rear push tractor and zero tear forms capability Blazing print speeds
48. nter OC E E d He 2 Use the platen knob to back the paper all the way out of the zn Si printer 7 CAUTION 1 A Make sure the printer is turned off before you open the access di cover 5 Lower the sheet guide then install the pull up roller 3 Open the access cover 1 and remove the pull up roller assembly and close the access cover assembly 2 Remove any torn pieces of paper 6 Turn on the printer and press FF LOAD Maintenance 55 Bear Feed Repeating Paper Jams If the paper keeps jamming you may have defective paper misaligned paper bits of paper stuck in the paper path Defective Paper Replace the paper with a fresh stack Misaligned Paper 1 Turn off the printer 2 Use the platen knob to back the paper all the way out of the printer 3 Tear off a couple of sheets of paper leaving a new clean square cut edge 4 Reload the paper and turn the printer back on 56 Microline 420 421 User s Guide Bits of Paper Stuck in the Paper Path 1 Turn off the printer 2 Use the platen knob to back the paper all the way out of the printer CAUTION Make sure the printer is turned off before you open the access cover 3 Open the access cover 1 and remove the pull up roller assembly 2 Then grasp the tabs 3 on the sheet guide 4 and lift it off the printer 4 Remove any torn pieces of paper 8 Load regular paper close and lock the tractor covers 5 Fold some continuous form pap
49. ntinued Epson Command Form Length n Inches n 1 to 22 n Lines n 1 to 127 Horizontal Tab Justification Left Center Right Full Line Feed Execute Select 10 cpi Select 12 cpi w Carriage Return n 216 n 2 0 to 255 n 144 n 0 to 127 Reverse n 216 n 2 0 to 255 ASCII Decimal ESCCNULn27670n ESCCn HT ESC a0 ESC a 1 ESC a2 ESC a3 ESC P ESC M LF ESC Jn ESC 5n ESC jn 2767n 9 27 97 48 27 97 49 27 97 50 27 97 51 27 80 27 TI 10 2774n 27 37 53 n 27 106 n Epson Command Line Spacing Set n 144 n 0 to 127 n 216 n 0 to 255 n 72 n 0 85 or 128 213 1 6 1 8 1 72 Paper Out Sensor Off Paper Out Sensor On ASCII ESC 69n ESC 3 n ESCAn ESC 2 ESC 0 ESC 1 ESC 8 ESC 9 Decimal 27 3757n 2751n 27 65n 27 50 27 48 27 49n 27 56 27 57 Control Codes 73 Epson FX Commands continued Epson Command Print Quality Font Select HSD SSD depends on setting for Draft Mode Select NLQ Select Courier NLQ only Select Gothic NLQ only Select UTL Print Speed Half Speed On Half Speed Off Print Suppress Mode On Print Suppress Mode Off Proportional Spacing On Proportional Spacing Off ASCII ESC 0 ESC x 1 ESC k 0 ESC k 1 ESC x0 ESC s 1 ESC s 0 DC3 DC1 ESC p 1 ESC p 0 74 Microline 420 421 User s Guide Decimal 27 40 48 27 120 49 27 107 48 27 107 49 27 120 48 27 115 49 27 115 48
50. ontinuous forms loaded on the optional push tractor up to the tear off position manually by pressing TEAR 5 Paper Park Important Never park labels Paper park allows you to switch to single sheet printing without removing continuous feed paper from the printer When you wish to print single sheets simply press PARK 6 to retract the continuous form paper from the paper path then lift the sheet guide load the sheet and send the print job 4 Move the paper lever 1 to the middle position marked TOP O Changing Paper Paths Continuous Forms to Single 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 d 2 NT AE f I Ee Using Your Printer 19 Single Sheets to Continuous Forms 4 Move the paper lever to the appropriate position 1 Press FF LOAD to remove the single sheet paper v Rear Teed 2 Lower the sheet guide into the continuous forms position V o e N Bottom feed m ud X I S 5 If necessary load continuous form paper SS ie IE d 6 Press FF LOAD 20 Microline 420 421 User s Guide Printhead Gap The printhead gap is the distance between the printhead and the platen CAUTION Make sure the printer
51. ot exceed 15 amperes Don t exceed this unless you know that the power line your equipment is plugged into has a rating above 15 amperes Unplug the printer before you clean it Use only a damp cloth Do not use liquid or aerosol cleaners To protect your printer from overheating make sure no openings on the printer are blocked Do not put the printer on or near a heat source such as a radiator or heat register If you put the printer in any kind of enclosure make sure it is well ventilated The printhead can get quite hot when it has been printing for a length of time Do not touch the printhead until it has had a chance to cool off Do not use your printer near water Do not spill liquid of any kind into it Do not poke anything into the ventilation slots on the sides of the printer You could get a shock or cause a fire Aside from the routine maintenance described in this document don t try to service the printer yourself Opening the cover may expose you to shocks or other hazards Don t make any adjustments other than those outlined in the document You might cause damage requiring extensive repair work 4 Microline 420 421 User s Guide f anything happens that indicates that your printer is not working properly or has been damaged unplug it immediately Then follow the procedures in Service and Support for having your printer serviced These are some of the things to look for The power cord or plug is
52. prints the previous Group O ITEM Key Prints the next Item in the Group With the SHIFT key prints the previous Item in the Group O SET Key Prints the next setting for an Item With the SHIFT key prints the previous setting for an Item PRINT Key Prints a copy of all the Menu settings With the SHIFT key prints the current settings for the Group selected O MENU Light Glows when the printer is in the Menu Mode 25 Entering and Exiting Menu Mode To enter or exit the Menu Mode hold SHIFT while pressing SEL Resetting the Menu to the Factory Defaults Note Please print the current Menu Mode settings before you reset or change them This is the only way to have a record of the settings To reset the Menu to the standard settings factory defaults 1 Turn the printer off 2 Press SEL LF while turning the printer on 26 Microline 420 421User s Guide Printing the Menu Settings Printing the Current Menu Settings 1 Make sure paper is loaded in the printer 2 Press and hold SHIFT then press SEL to enter the Menu Mode 3 Press PRINT PARK key Printing All Menu Settings To print out a listing of the settings for all menu items regardless of the emulation selected or the accessories installed 1 Make sure paper is loaded in the printer 2 Press and hold SHIFT then press SEL to enter the Menu Mode 3 Press and hold SHIFT then press PRINT QUALITY Changing the Menu Settings Note Please print th
53. readsheets Proportional PROP sets character widths based on the character itself e g the letter i is assigned a narrower width than the letter m This provides a more polished typeset appearance Note To reset the printer to the factory default character pitch deselect the printer then press and hold the SHIFT key while pressing the CHARACTER PITCH key Epson and IBM Emulations Set the character pitch by pressing CHARACTER PITCH 1 until the light beneath the desired setting is lit 10 cpi 12 cpi 15 cpi 17 cpi 20 cpi Proportional MICROLINE Emulation In the MICROLINE emulation the Character Pitch choices are 10 cpi Proportional or non proportional 12 cpi Proportional or non proportional 15 cpi Proportional or non proportional 17 cpi Proportional or non proportional 20 cpi Proportional or non proportional To select Proportional press the CHARACTER PITCH key until both the cpi value and PROP lights are lit To select non proportional press the CHARACTER PITCH key until the light for the cpi value you wish to use is lit Using Your Printer 23 oO Q Er Be Gel a to Micro reed TOF PRINT QUALITY p EXIT GROUP ITEM SET PRINT z POWER ALARM MENU d i 2 PROP e CHARACTER PITCH Printer Reset Emulations Clearing some error conditions requires that you reset e IBM Proprinter III factory setting reinitialize the printer To do this Epson FX 1 Press and release SEL 1 to take
54. rint Registration sesss 31 40 Print Server Option sss 68 Print S1Ze iani et eege 79 Print Speed 7 79 Print Suppress ssssss 31 40 Printer Control Codes 69 77 Printer Drivers Selecting 92 93 Printer Parameters sess 25 Printhead css ient 78 G p sidere a 21 Proportional Spacing 28 40 Pull Tractor eco mentes 68 Push Tractor rae me 68 R Rear Feed Continuous Forms sss 10 Form Tear Off ss 29 30 Jams Repetitive sussss 56 Line Spacing seiersen 29 Paper Jam niente 55 Skip Over Perforation 29 Receive Buffer Size sssss 78 Reliability neiere eee t 78 Replacement Parts sessses 66 Resolution Graphics 80 Ribbon Cartridge Replacement Order No 67 Replacing 5 eim 42 Ribbon Shield 43 63 87 Roll Paper Stand AA 68 RS 232C Serial Interface 78 S Self TESIS tore 90 Serial Interface eee 68 Serial Interface Option 62 Server Print Option esses 68 Sheet Guide oce td 67 Single Sheet Cut Sheet Feeder Option 68 Jams ueste 58 LBE i csi ingn 53 Sk
55. rinter III IBM Proprinter II IBM Proprinter Epson FX Epson FX286e Epson FX 850 1050 Epson FX 800 1000 Installation 93 LL A Accessori ESen oce ir tetuer ege 68 Alignment problems sss 9 ASCE Test 2 5 2 Ree 9 Auto Carriage return eee eee eee 35 Auto LF Line Feed 31 35 Auto Select tete 32 B B t Code sis oio REG 80 Bi directional printing 30 40 Bottom Feed s 81 82 Form Tear Off sssssssss 29 Line Spacing 0 eee ee eeeeeeeeeees 29 Skip Over Perforation 29 Buffer VE 38 Receive Buffer Size 78 94 C Carbonless continuous forms 81 82 Card Stock niisiis isinira 81 82 Centering printhead position 63 Character Pitch sess 39 Selecting enee 23 Character Set sesesss 28 36 Character Width ssuuss 39 Characters Per Second CPS 7 Code Page Character Set 36 Codes Printer Control 69 Commands Epson EX aine 72 714 IBM Proprinter III 69 71 Oki Microline Standard 75 77 Control Codes ccccccccsssecceceessseceeeeenees 69 Cut Sheet Feeder suus 68 E Electrical Requirements 83
56. so 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 Page Length Default 11 Selects the length of the paper you are using This enables the printer to keep track of the initial printing position TOF on each page Page Length Control Default by Actual Page Length If you are printing single sheets no longer than 17 inches and wish the printer to acknowledge the menu setting for Top Feed Page Length change the setting to by Menu Setting Page Width Default Depends on Feed Path Wide carriage model only For rear and bottom paths the default is 13 6 Change to 8 if you will be printing on narrow paper This prevents printing on the platen which can damage the printhead and the platen and can cause loss of data For the top feed path the default is 8 Change to 13 6 to print on wide paper Paper Out Override Default No Senses when less than 1 25 mm of paper remains and stops printing Change to Yes to override the sensor and print closer to the bottom of the page Caution Engaging Paper Out Override can cause loss of data and damage the printhead by allowing printing without paper Parity Default None Appears only when the optional Serial Interface is installed Selects the type of parity your system uses None Odd or Even Pin 18 Default 5V Sets the signal on pin 18 to 5 volts or open
57. t Make sure you have the correct replacement ribbon for your printer The wrong ribbon will not print when installed in your printer Ribbon Cartridge Handling Leave unused ribbon cartridges in their packages until needed Careful the ribbon ink may cause permanent stains Ribbon ink on skin or clothing can usually be removed with soap and water 1 Make sure the printer is turned OFF 2 Open the access cover and center the printhead 1 CAUTION The printhead may be HOT 3 Unpack the new ribbon cartridge and install it on the printhead Important Do not remove the ribbon shield 1 from the ribbon 4 Turn the take up knob 1 in the direction of the molded in arrow to take up any ribbon slack 5 Close the access cover and turn the printer on Installation 87 Power Connection Computer Connections 1 Make sure both the printer and the computer are OFF Parallel LPT IEEE 1284 2 Plug the power cord into the back of the printer then into a LPT ended outlet Requires bidirectional cable max length 6 ft 1 8 m not s f supplied e Printer has 36 pin socket 1 Make sure the printer and computer are both turned off 2 Attach a suitable bidirectional cable to the parallel connector on the back of the printer Then attach and secure the cable to your computer 3 Turn on the printer 3 Turn the printer and computer back on 88 Microline 420 421 User s Guide USB Specification
58. to be sure that you entered them correctly Problem Ink smears on the paper when I print narrow columns Solution This may be caused by excessive printhead travel from the centering position Enter the Menu and set the Centering Position to MODE 1 See Using Your Printer Menu Mode For the wide carriage printer if MODE 1 doesn t work try setting the Centering Position to MODE 2 Problem I ve installed a new ribbon and the printing is smeared and streaked Solution The ribbon shield 1 is either loose or missing Remove the ribbon cartridge and check the ribbon shield e If it is loose secure it e If it is missing find it and install it Troubleshooting 63 Problem There are dots missing in my printouts Solution The head gap may not be set correctly Try moving the headgap lever to a lower setting If that doesn t help the printhead may be damaged call for service Problem The ALARM light is flashing Solution Try turning the printer off and then back on again If the light still blinks call for service 64 Microline 420 421 User s Guide Problem The ALARM light is on and the Character Pitch 10 light is flashing Solution This indicates that the paper lever is set at the wrong position for the paper you are trying to use Move it to the proper setting Problem The ALARM light is on and the Character Pitch 15 light is flashing Solution This
59. up and change the setting for Reset Inhibit to Yes The I Prime signal will automatically override any front panel settings you have made To eliminate this problem enter the Menu Mode go to the Parallel Interface group and change the setting for I Prime to Invalid For more information on changing menu settings see Changing the Menu Settings in Chapter 4 Problem Nothing happens when I turn on the printer Solution Check the power cord connection to the outlet and to the printer If you are using a power strip make sure it is turned on and that the fuse hasn t blown or that the circuit breaker hasn t tripped Troubleshooting 61 Problem The printer does not print when the computer sends data Solutions 1 Is the SEL light on If not press the SEL key 2 Check that the interface cable is securely connected to both the printer and the computer Lu If you have the optional serial interface board installed check to be sure that it is firmly seated in the printer 62 Microline 420 421 User s Guide Problem I m getting strange symbols incorrect fonts etc when I try to print a document Solutions 1 Check to be sure that the printer driver you have selected in your software matches the printer emulation Press SHIFT and SEL keys then press GROUP key This will print a line showing the emulation you have selected 2 If you have embedded any printer commands in your software check
60. while turning on the printer To exit the Hexadecimal Dump Mode Press the SEL key Or Turn the printer off then on again 92 Microline 420 421 User s Guide Emulations The factory default emulation for your printer is IBM Proprinter III If you wish to change to one of the other emulations see Changing Emulations in Chapter 3 Printer Drivers The Oki driver for your printer is provided on the CD included with the printer You can either load the Oki driver or select one of the compatible drivers listed below in your software application Loading the OKI Driver Parallel Interface 1 Insert the CD into your CD ROM drive Note If the CD does not AutoPlay click Start Run gt Browse then browse to your CD ROM drive double click Install exe and click OK 2 Select your printer model 3 When the Menu Installer window appears click the Printer Software button 4 Follow the on screen instructions USB Interface 1 Turn the printer on The Windows Add New Hardware Wizard window displays 2 Click Next 3 Insert the CD into your CD ROM drive 4 Follow the on screen instructions to install the software for your printer model Using a Compatible Driver Note See your software documentation for information on how to select a printer driver The drivers below are listed by decreasing compatibility with your printer Use one as close to the top of the list as possible IBM Proprinter III IBM Prop
61. you are loading Then close the lock lever on the right tractor Note The movement of the right tractor is limited to ensure that the paper covers the paper sensor 7 Open the tractor covers 46 Microline 420 421 User s Guide 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 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 5 af Maintenance 47 11 Lower the sheet guide and slide it toward the front of the printer until the marks align 48 Microline 420 421 User s Guide 12 Place the wire guide CU 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 I 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
62. your printer Locate an Authorized Oki Data Reseller by visiting one of our web sites http my okidata com allows you to register your product and personalize your own support needs http www okidata com provides general information 66 n the United States purchase directly from Oki Data Via the Internet http my okidata com http www okidata com Via telephone Order toll free by phone at 1 800 654 3282 1 800 OKI DATA using VISA MasterCard or AmEx n Canada call 888 309 4570 Replacement Parts Item Part Number Both Models Ribbon Cartridge Q 42377801 Platen Knob 51902220 Power Cord 56631801 Printhead Q 41923901 Model MIA20 Access Cover 42115401 Sheet Guide Q 51009509 Pull Up Roller Assembly Q9 42044701 Model MIA21 Access Cover 42115301 Sheet Guide Q 51009410 Pull Up Roller Assembly 42045701 Accessories 67 Accessories Option Model ML420 Pull Tractor Top Mount Q Push Tractor Bottom Mount 63 Roll Paper Stand E Model ML421 Pull Tractor Top Mount Q
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