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ML5720/ML5721/ML5790/ML5791

1. Troubleshooting gt 62 PROBLEM Print position offset CAUSE ACTION The horizontal printing position is offset The start position may change after the printer is powered on When the printer is powered ON switch from off line mode to on line mode by pressing the SEL button Reset the start position You must set the Power Switch to OFF before you change the start position Printing slows down Print direction changes suddenly to unidirectional PE warning The print carriage does not operate When the print head overheats the printer automatically starts unidirectional split printing There is contamination on the carriage shaft When the print head temperature drops sufficiently the printer will return to its original operation Clean any paper dust and contamination from the carriage with a dry cloth Print blurring The characters are too pale to display properly on the paper The Paper Thickness lever position does not match the paper Correct the Paper Thickness lever setting The printer is set to print at high speed Set the speed to normal The ribbon has reached its end of life Replace the ribbon by a new one The ribbon cartridge is not installed correctly Reinstall the ribbon cartridge correctly The ribbon has been wound incorrectly Replace the ribbon cartridge by a new one The ribbon is not transferring pro
2. 1 Set the Paper Type lever to cut sheet mode 2 To activate menu mode a Ensure that the printer is powered ON b Place the cut sheet on the front Paper Tray The cut sheet is gripped by the printer c Press and hold down the CHR PITCH button and then the PRINT SPEED button to enter menu mode Menu print is printed 3 Press PRINT QUALITY PRINT button and the printer prints out all the menu items currently selected and their corresponding settings 4 Exit or proceed to change menu settings a To exit menu settings confirmation save the current settings press CHR PITCH and PRINT SPEED buttons together Save menu is printed Press LOAD EJECT button to eject the cut sheet paper b To change the menu settings see Menu setting on page 41 Operating instructions gt 40 MENU SETTING NOTE Before changing menu settings you may wish to print the current menu settings as in Confirming current settings on page 40 1 Ensure that the printer is turned ON Place the cut sheet on the Paper Tray the paper is gripped by the printer 3 Press and hold down the CHR PITCH button and then the PRINT SPEED button to enter menu mode Menu PRINT is printed 4 Press the LF FF GROUP or LOAD EJECT ITEM or TEAR SET button to print the first menu item 5 To change a setting a Press LF FF button to step forward and SEL LF FF to step backward to the required group b When in the required Group p
3. Contents gt 4 MenussettInd e Sons sects om hin ee aii ene PT ae e nee ene 41 Menu items and Settings c3 cc eae baa A lw Be en 42 Initialising menu settings aa ee 57 Adjusting TOF position ni ct 2k Saws bate awa eGR ee De ae a E 57 Troubleshooting 0 0 cee eee ee 59 Clearing paper jaMS rioari cc es 59 Cut sheet paper jammed in printer 1 aaa es 59 Continuous forms jammed in printer saasaa es 60 Responding to alarm conditions aoaaa es 62 Responding to general problemS asau es 62 Cleaning your printer ce ssa 0 00 c eee eee ees 67 Printer exterior insa oo taa Be Seely e se cat oth coe St ca o cA staat a al Aue Se ash Sut tn Seals 67 Printer INTEO 0 YBa eo ea ee A ta ea ee ae 67 Consumables and accessorieS 00 000 eee ooo ees 68 Consumables cp ws a a A oe oa bee a a Aye at ete de Bata 68 Changing a ribbon cartridge es 68 Consumable order information 0 oo oooooreraa 72 Installing Options 0000 ee 73 Installing the Cut sheet feeder 0 0 o a 73 Installing the Roll paper stand ML5720 ML5790 0 0o oo ooo ooo ooo 75 Installing the Network and serial interface Card 0 o ooo ooo ooo 77 Option order numbers mai ai a e e E A a a Oank 77 SPECIFICATIONS ia 022 0 2 0 a a a as as a 78 Indexi cki ea aaa a aaa vay alia aE stare Sear ataca aa 79 Oki Printing Solutions contact detai lS 00 ooo 80 Contents gt 5 NOTES CAUTIONS A
4. OKI M L5720 M L5721 ML5790 ML5791 PRINTING SOLUTIONS User s Guide PREFACE Every effort has been made to ensure that the information in this document is complete accurate and up to date The manufacturer assumes no responsibility for the results of errors beyond its control The manufacturer also cannot guarantee that changes in software and equipment made by other manufacturers and referred to in this guide will not affect the applicability of the information in it Mention of software products manufactured by other companies does not necessarily constitute endorsement by the manufacturer While all reasonable efforts have been made to make this document as accurate and helpful as possible we make no warranty of any kind expressed or implied as to the accuracy or completeness of the information contained herein The most up to date drivers and manuals are available from www okiprintingsolutions com 07106001 Iss 1 Copyright 2010 Oki Europe Ltd All rights reserved Oki is a registered trademark of Oki Electric Industry Company Ltd Oki Printing Solutions is a trademark of Oki Data Corporation Hewlett Packard HP and LaserJet are registered trademarks of Hewlett Packard Company Microsoft MS DOS and Windows are registered trademarks of Microsoft Corporation ENERGY STAR is a trademark of the United States Environmental Protection Agency Apple Macintosh Mac and Mac OS are trademarks of Apple Inc Other product
5. United Kingdom For all sales support and general enquiries contact your local distributor ENVIRONMENTAL INFORMATION BE Manufacturer gt 3 CONTENTS PROT AGS 222 alee eal ar ala Di eae aaa A a ae A ee 2 Manufacturer uribe a a i eaa aaa ay isda Mes eae fe ace aaa daha elena dete ea 3 Importer to the EU authorised representative 0 0 o 3 Environmental Informati0DM lt lt 000 eee e o uu 3 Contents iia a ad a a aa a a oa 4 Notes cautions and WarNin9S ooooooommmmanaaaaaa 6 Introd cti n rosset ren le he a Ra Rae A a A A 7 ADQUEThIS guidS tii o a a E A A ES Aca 7 ON lING USAGE ien tia A A So ea ete A AA 7 Printing PAYJOS 2 5 iii cara a e a Oe ws 8 Getting Started 0oooooooccrncnn aa a an E E a a a a a a 9 Retaining packing materials nasasa a 9 Identifying component partS assau aaa a a 9 FrONCVIEW Tina i a Bah ay ae aa de ted id Sd ahead tes he ea His Ged aa de 9 Internal view ooo es 10 REAR MIQW Sk ede A RE Gee E as A E ae nes eal cet wea Galan ae de ae 10 LOCATING YOU PRINTER ata dete a let Sea dre be r nati erie ald Goes eerie Sah es 11 Powering on your printer da iai aa a a ema 11 Powering off your printer o ooo 12 Producing a test print weed eae ee eee be AO E wie OE e A 13 Connecting to acomputer cee eee ee 15 Interconnecting printer and computer cee es 15 IMESITACES auna A AR ee Le RE Dias tah De wet tina 15 INTE
6. 17 1 CPI 20 CPI Proportional Select whether to use Yes Spacing proportional spacing or No not Style Select either font style Normal Italics Size Select the character Single scale size Double Operating instructions gt 42 GROUP Symbol Sets ITEM FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Character Set Select character code Set I Set I table Set II Set II Standard ML mode only Line Graphics ML mode only Block Graphics ML mode only Language Set Select a language ASCII ASCII character set French French German German British British Danish I Danish I Swedish I Swedish I Italian Italian Spanish I Spanish I Japanese Japanese Norwegian Norwegian Danish II Danish II Spanish II Spanish II Latin American Dutch Latin American TRS80 Dutch Swedish II Swedish II Swedish III Swedish III Swedish IV Swedish IV Turkish Turkish Swiss I Swiss I Swiss II Swiss II Publisher Publisher Zero Character Select either print font Slashed Slashed pattern to receive a zero Unslashed Unslashed character located at 30H in ANK code Operating instructions gt 43 GROUP Symbol Sets cont ITEM Code Page FUNCTION Select a code page SETS ML5720 ML5721 ML5790 ML5791 USA USA Canada French Canada French Multilingual Multilingual Portugal Portugal Norway Norway Turkey Turkey Greek_437 Greek_437 Greek_869 Greek_869 Greek_928 Greek_928 Greek_437 CYPRUS Polska Mazovia S
7. 3 part Xx 4 part X 5 part X 6 part X 7 part X Set the Paper Thickness lever for overall paper thickness as follows OVERALL PAPER THICKNESS LEVER POSITION 0 06 0 10 mm 1 0 11 0 15 mm 0 16 0 20 mm AJUJ N 0 21 0 25 mm 0 26 0 30 mm 0 31 0 35 mm 0 36 0 40 mm 0 41 0 45 mm Ooo NIOJ A 0 46 0 50 mm 0 51 0 53 mm 10 NOTE gt Printing with lever positions 5 10 is not guaranteed gt If the lever position does not suit the paper thickness paper feeding and printing may not work properly gt Do not print bankbooks to avoid possible pin breakage ribbon snagging gt When lever positions 5 10 are selected printing quality for carbon paper may decline resulting in illegible characters for example Paper handling gt 34 NOTE gt When using 3 inch wide media change the Centering Position in the Menu Settings to Mode 1 If the Centering Position is not set to 1 it will result in Paper Jam gt When loading envelopes set the head gap based on the thickness of the overlapped and glued areas of the envelope and not the thin area This will prevent dark printing in some areas on the envelope gt Do not use glossy paper if it is not tested thoroughly This type of paper is left with marks from the paper feed roller or from rubbing Also the paper may not feed properly c
8. the Invalid character center position TOF Adjust Select an adjustment 20 1 30 1 value for the reference 0 0 position in regard to the 1 20 1 30 TOF position of cut sheet paper The position moves to the rear of the form by and to the top of the form by in 1 144 ML5720 ML5721 and 1 180 ML5790 ML5791 increments Operating instructions gt 49 GROUP Cut Sheet Top cont Cut Sheet Front ITEM Cut Sheet Top of Form FUNCTION Select the reference position for the TOF position when feeding cut sheet Up to the mid section of characters in the first line SETS ML5720 ML5721 2 12 mm 1 12 4 23 mm 2 12 6 35 mm 3 12 8 47 mm 4 12 10 58 mm 5 12 12 70 mm 6 12 14 82 mm 7 12 16 93 mm 8 12 19 05 mm 9 12 21 17 mm 10 12 23 28 mm 11 12 25 40 mm 12 12 27 52 mm 13 12 User Top of Form ML5790 ML5791 LF Revise Adjust a line feed in the 14 1 cut sheet mode 0 1 14 Centering Position Select to limit printhead Default travel when printing Mode 1 narrow columns Mode 2 Select Model for ML5720 Select Mode 1 or Mode 2 for ML5721 Line Spacing Select line feed pitch 6 LPI 8 LPI Page width Change to 8 to print on 345 44 mm 13 6 Displayed only for narrow paper 203 2 mm 8 ML5721 ML5791 Page Length Select the length of cut sheet 279 4 mm 11 29
9. Confirming current settings on page 40 and confirm that the TOF in cut sheet mode or continuous forms mode is 23 28 mm 11 12 in Remove the cut sheet paper by pressing LOAD EJECT button or retract the continuous form as described in Removing continuous forms on page 27 Set the Paper Type lever to the required paper type Place the cut sheet paper on the Paper Tray front or top and adjust the paper guides to suit the paper width When continuous forms are used place the paper on the Pin Tractor To load the cut sheet paper insert the cut sheet in the Top of Form position and the paper is automatically loaded To load the continuous form press LOAD EJECT button NOTE TOF default is set at 23 28 mm 11 12 in Align the paper with the first print line position as follows ML5720 ML5721 gt To feed the paper forward by a small amount 1 144 in press the LOAD EJECT and SEL buttons together gt To feed the paper backward by a small amount 1 144 in press the LOAD EJECT and LF FF buttons together ML5790 ML5791 gt To feed the paper forward by a small amount 1 180 in press the LOAD EJECT and SEL buttons together Operating instructions gt 57 gt To feed the paper backward by a small amount 1 180 in press the LOAD EJECT and LF FF buttons together NOTE gt Press the TEAR button to move the continuous form down before adjusting the TOF gt For ML5720 ML5721 the specified
10. Epson or Microline emulations see To change a setting on page 41 and Printer Control on page 42 INSTALLING THE PRINTER DRIVER The driver for your printer is provided on the CD included with the printer Insert the Drivers CD into your computer and follow the on screen instructions to install the printer driver for use with your printer NOTE If the CD does not AutoPlay click Start gt Run gt Browse then browse to your CD ROM drive double click Setup exe and click OK PRINTING A TEST PAGE As an example using Windows XP 1 Use Start gt Printers and Faxes to show the Printers and Faxes window Highlight the driver for your printer Use File gt Properties to show the Properties window On the General tab click the Print Test Page button noA BON Ensure that a test page has printed verifying your printer computer setup Connecting to a computer gt 16 PRINTING FROM A COMPUTER When printing to your printer from for example a Windows application on your computer make your printing selections from the driver windows that appear on screen These driver windows have been designed to be easy to use and intuitive while supplementary on line help is available by clicking each window Help button OKI DIPUS The OKI DIPUS utility allows you remote access to the printer settings using the available applications You can access DIPUS from Start gt All Programs gt Okidata gt OKI DIPUS CONTRO
11. LOAD EJECT button to move the front edge of the continuous forms backwards to the Pin Tractors NOTE gt The printer switches to off line mode gt The ALARM indicator illuminates to indicate there is no paper present gt If sprocket holes of the last page of the forms disengage from the sprocket pins do not attempt to eject the paper to avoid the possibility of a paper jam 3 Lift the Pin Tractor covers 1 and remove the forms 4 Close the Pin Tractor covers Paper handling gt 27 LOADING CUT SHEET PAPER 1 Ensure that the printer is turned ON NOTE If there are any continuous forms in the printer eject them as described in Removing continuous forms on page 27 2 Ensure that the Pin Tractor covers 1 are closed to avoid the possibility of paper jams U 3 Ensure the Paper Type Lever is set to Cut Sheet 4 To load the cut sheet in the Top Feed Paper Tray raise the top tray To load the cut sheet in the Front Feed Paper Tray open the front cover and install the front paper tray Paper handling gt 28 5 Set the left margin of the paper by adjusting the Paper Guide 1 along the scale 2 relative to the start of printed line marker arrow Top Feed Front Feed 6 Open the Top Cover and Adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 NOTE If the Paper Thickness Lever setting does not match the paper being use
12. ML Emulation decimal 27 as a solid box SI Select Pitch 10 Select how to handle an 17 1 CPI CPI Displayed SI command received in 15 CPI only for IBM 10 CPI mode emulation SI Select Pitch 12 Select how to handle an 12 CPI CPI Displayed SI command received in 20 CPI only for IBM 12 CPI mode emulation Time Out Print Select valid or invalid Invalid Valid Auto Select Determines whether or Yes not the printer will No automatically be selected after you load in paper Select No if you want to set the Top of Form position Host Interface Selects which interface Auto Interface the printer uses to Parallel receive printing USB commands Optional I F Time Out Sets the length of time 15 sec before the interface 30 sec switches to idle status 45 sec when no printing 1 min commands have been 2 min received 3 min 4 min 5 min ESC SI Pitch Sets the character pitch 17 1 CPI Displayed only for used when the ESC SI 20 CPI IBM emulation command is received Select Language Changing the language Combined Set set replaces certain standard symbols with special characters used in foreign languages Code Page Only Print Style Select the printer impact Normal mode High Speed Quiet High Copy Select Quiet Mode Select Quiet print mode Mode 1 Mode 2 Select High Copy Select High Copy print Mode 1 Mode mode Mode 2 Mode 3 Mode 4 Reverse Feed Set reverse feed control TOF Stop Control
13. UPS and or inverter 1 Ensure that your printer Power Switch is set to OFF Getting started gt 11 2 Connect the power cable connector 1 A C Input 2 on the printer 3 Connect the power cable to a 220 240 V AC 3a power outlet and switch on the outlet power 3b WARNING Be careful when inserting a three pronged AC plug Before plugging it in check the position of the FG terminal Incorrect insertion may cause damage not only to the printer main body but also peripheral devices and electric shock smoke and ignition 4 Turn the printer Power Switch to ON 5 Check that the SLEEP ALARM SEL TEAR PRINT QUALITY CHR PITCH and PRINT SPEED indicators on the operator panel illuminate POWERING OFF YOUR PRINTER 1 Turn the printer Power Switch to OFF CH Getting started gt 12 2 3 Switch off the outlet power 1a and then unplug from the power outlet 1b Unplug the power cable connector 2 from the printer 3 PRODUCING A TEST PRINT To check that your printer is operational produce a test print on a sheet of 80 gsm A4 paper for example as follows gt Allow at least 5 seconds between turning the printer ON after turning it OFF A shorter time interval between turning ON OFF operations may cause printer power failure gt Do not turn the printer OFF while it is printing as this may result in damage to the print head Turn the printer
14. continuous forms 1 To avoid paper feeding problems carry out the following Check your printer is on a surface approximately 75 cm above the floor 2 Position the continuous forms supply directly below the printer no more than 3 cm left or right of the printer paper path 3 Ensure the rear of the printer is close to and parallel with the edge of the surface and at least 60 cm from any wall Rear feed Push Bottom feed Pull 3 cm NOTE When the optional Pull Tractor is used Paper handling gt 18 Front feed Push 3 cm FEEDING CONTINUOUS FORMS REAR FEED PUSH 1 2 Ensure that the printer is turned ON NOTE If there is a cut sheet in the printer eject it as described in Ejecting cut sheet paper on page 30 a REAR Open the Top Cover and adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 Ensure the Paper Type Lever is set to Continuous Forms REAR After adjusting close the Top Cover NOTE If the Paper Thickness Lever setting does not match the paper being used paper feeding and printing may not work properly Remove the top tray by holding the tray by the tabs on both sides and pulling it up from the printer Paper handling gt 19 5 Lift the locking lever 1 of the right Pin Tr
15. correction range is 20 144 in gt For ML5790 ML5791 the specified correction range is 30 180 in When the paper is positioned at the required TOF release the buttons in Step 6 above To save this position as the TOF press and hold the SEL button and then press the LF FF button Operating instructions gt 58 TROUBLESHOOTING CLEARING PAPER JAMS CUT SHEET PAPER JAMMED IN PRINTER Do not carry out any operations inside the printer with the Power Switch set to ON pa Set the Power Switch to OFF Open the Top Cover N 3 Set the Paper Thickness lever to position 10 WARNING The Print Head may be hot after printing Allow it to cool before touching it gt Remove the ribbon cartridge See Changing a ribbon cartridge on page 68 u Move the print head away from the paper Troubleshooting gt 59 6 Rotate the platen knob in the relevant direction and pull the cut sheet out from the top of the printer 7 If a paper fragment remains inside the printer a use tweezers to grip and extract it or b insert a triple folded sheet from the Paper Tray and turn the platen knob to pass the folded sheet through and push out the paper fragment Ss 8 When the paper jams are cleared replace the ribbon cartridge reset the paper thickness lever and close the printer top cover 9 Set the Power Switch to ON NOTE Use the above procedure to clear paper jam when using cut sheet fr
16. grooves 2 in the printer until the ribbon cartridge is fully locked NOTE It may be easier to mount the ribbon cartridge in place if you align it with the topside of the grooves Also a slightly loose ribbon may make it easier to mount the ribbon cartridge Consumables and accessories gt 70 9 Holding the sides of the ribbon guide slope it downward until the ribbon guide comes in line with the slot of the print head NOTE Ensure that the guide is pushed to the end of the print head 10 Move the print head horizontally to ensure that the ribbon is properly installed 11 Turn the knob 1 clockwise in the direction of the arrow to wind up the ribbon CAUTION gt Do not turn the knob anticlockwise as the ribbon might jam gt Make sure that the ribbon is not twisted or damaged when it goes through the gap between the Print Head and the ribbon guide Consumables and accessories gt 71 12 Set the Paper Thickness lever to match the paper being used See Setting the Paper Thickness lever on page 33 13 Close the Top Cover 14 Set the printer Power Switch to ON CONSUMABLE ORDER INFORMATION ORDER NO Ribbon cartridge Black ML5720 ML5790 8 million characters 44173405 ML5721 ML5791 13 million characters 44173406 Consumables and accessories gt 72 INSTALLING OPTIONS INSTALLING THE CUT SHEET FEEDER To install the optional cut sheet feeder CSF carry
17. mm 3 12 cut sheet Up to the 8 47 mm 4 12 mid section of 10 58 mm 5 12 characters in the first 12 70 mm 6 12 line 14 82 mm 7 12 16 93 mm 8 12 19 05 mm 9 12 21 17 mm 10 12 23 28 mm 11 12 25 40 mm 12 12 27 52 mm 13 12 User Top of Form LF Revise Adjust a line feed 14 1 amount in the cut sheet 0 mode 1 14 Centering Position Select to limit printhead Default travel when printing Mode 1 narrow columns Mode 2 Select Model for ML5720 ML5790 Select Mode 1 or Mode 2 for ML5721 ML5791 Set up Graphics Select the printing Uni directional direction when double Bi directional height print data exists in a line 7 or 8 Bits Select to change 7 Graphics graphics settings 8 Displayed only for ML Emulation Receive Buffer Select size of the OK Size received buffer 1 Line When 1 Line is 32 K selected the receive 64 K 128 K buffer size is set to 2 k bytes Operating instructions gt 51 Set up cont FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Paper End Select whether to detect On Detection paper end or not Off Change to OFF to override the sensor and print closer to the bottom of the page Print Registration Adjust the print starting 10 1 1 position on printing in 0 the reverse direction 10 1 The position moves to the right or left in 1 720 in increments Print Registration Adjust the print st
18. options follow the detailed installation sheet that accompanies the option OPTION ORDER NUMBERS OPTION MODEL ORDER NUMBER Pull Tractor ML5720 ML5790 44753902 ML5721 ML5791 44754002 Cut sheet Feeder Single Bin ML5720 ML5790 44497402 ML5721 ML5791 44497502 Roll Paper Stand ML5720 ML5790 YA4053 1057G015 Tractor Unit ML5720 ML5790 44454902 ML5721 ML5791 44455002 RS 232C Serial Interface ML5720 ML5721 44455102 ML5790 ML5791 LAN7120E3 100BASE TX ML5720 ML5721 44455302 10BASE T Network Interface ML5790 ML5791 Installing Options gt 77 SPECIFICATIONS MODEL MODEL NUMBER ML5720 D22540B ML5721 D22550B ML5790 D22560B ML5791 D22570B SPECIFICATION Print method Impact dot matrix Print head ML5720 ML5721 18 pin 0 3mm 0 012 in diameter ML5790 ML5791 24 pin 0 2mm 0 0079 in diameter Dimensions ML5720 ML5790 438mm W x 375mm D x 191mm H ML5721 ML5791 592mm W x 375mm D x 191mm H with platen knob pull up guide assembly support and paper separator Weight ML5720 ML5790 7 5 kg ML5721 ML5791 10 kg Power rating Voltage 220 240V 10 Frequency 50 60 Hz 2 Power consumption Operation ML5720 ML5721 ML5790 ML5791 Standby mode Powersave mode without options attached Typ 59W ISO IEC10561 Letter Draft Range 1 Typ 88W ISO IEC10561 Letter Draft Range 1 15 W 2 0W Environmental conditio
19. out for the following 1 Ensure that the printer is turned OFF 2 Ensure that the Paper Type Lever is set to Cut Sheet 3 Open the top access cover adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 4 Remove the top tray by holding the tabs 1 on both sides and pulling it up away from the printer Installing Options gt 73 5 Remove the Pull up Guide assembly 1 by disengaging the latches 2 on both sides pulling it forwards 3 and then pulling it up 4 6 Guide the edge of Cut sheet feeder on both sides onto the platen and then press down to lock it in place Installing Options gt 74 8 Set the printer Power switch to ON NOTE The Guide Assembly packed with CSF cannot be used on ML5720 ML5721 INSTALLING THE ROLL PAPER STAND ML5720 ML5790 To install the optional Roll Paper Stand RPS carry out the following 1 Ensure that the printer is turned OFF 2 Ensure that the Paper Type Lever is set to RPS 3 Installing Options gt 75 4 Remove the top tray by holding the tray by the tabs on both sides and pulling it up from the printer 5 Install the separator 1 Insert the RPS 2 into the separators insertion slots 3 and push it backward 4 Installing Options gt 76 INSTALLING THE NETWORK AND SERIAL INTERFACE CARD To install any of the above
20. port requires a bi directional IEEE 1284 compliant parallel cable gt USB for connection to a PC running Windows 2000 or above This port requires a shielded cable 5m long conforming to USB version 2 0 NOTE gt This Interface default is set to Auto Interface see Host Interface on page 53 The Auto Interface function will enable the printer to receive data from the computer even when all the interfaces i e the Parallel USB and the optional Network or Serial interfaces are connected at the same time You can also select an individual interface to connect to the printer gt Interface cables are not supplied with your printer The following interfaces are available as optional accessories and are described in their accompanying installation documentation gt RS232 Serial interface gt 100BASE TX 10BASE T network connection NOTE Refer to the Network Guide for setting up the network connection Connecting to a computer gt 15 INTERCONNECTION 1 Ensure that both printer and computer are turned OFF 2 Connect the required interface cable USB 1 or parallel 2 or serial or network 3 to the printer and then to the computer NOTE With the Auto Interface connection enabled you can also connect all the interfaces at the same time 3 Turn ON the printer and then turn ON the computer EMULATIONS The factory default emulation for your printer is IBM PPR If you wish to change to one of the
21. 1 ML5791 Operating instructions gt 48 GROUP Cut Sheet Top cont ITEM Page Length FUNCTION Select the page length of cut sheet SETS ML5720 ML5721 ML5790 ML5791 279 4 mm 11 in 296 3 mm 11 2 3 304 8 mm 12 420 9 mm 16 57 355 6 mm 14 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 Initial Position Select the vertical print Print Position Displayed when position when printer is Cut Position connected to the turned on RPS ML5720 ML5790 Cut Position Adjust Select an adjustment 20 1 30 1 Displayed when value for the position to 0 0 connected to the cut the end of a 1 20 1 30 RPS ML5720 continuous form ML5790 Wait Time Select the waiting time Invalid between setting paper 0 5 sec on the tray and feeding 1 0 sec it while the printer is 1 5 sec waiting for paper to be 2 0 sec fed in cut sheet manual 3 0 sec feed mode Paper Length Control Cut Sheet Auto Eject Position Control the page length of cut sheet Select a printable area at the bottom of cut sheets of paper in cut by MENU setting by Actual Page Length by MENU setting by Actual Page Length 6 35 mm 3 12 12 70 mm 6 12 14 82 mm 7 12 paper mode
22. 12 355 6 mm 14 431 8 mm 17 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 Initial Position Select the vertical print Print Position position when printer is Cut Position turned on Cut Position Adjust Select an adjustment 20 1 30 1 value for the position to 0 0 cut the end of a 1 20 1 30 continuous form TOF Adjust Select an adjustment 20 1 30 1 value for the reference 0 0 position in regard to the 1 20 1 30 TOF position of a continuous form Continuous Paper Select an adjustment 2 12 mm 1 12 Top of Form value for the reference 4 23 mm 2 12 position in regard to the 6 35 mm 3 12 Top of Form of a 8 47 mm 4 12 continuous form 10 58 mm 5 12 12 70 mm 6 12 14 82 mm 7 12 16 93 mm 8 12 19 05 mm 9 12 21 17 mm 10 12 23 28 mm 11 12 25 40 mm 12 12 27 52 mm 13 12 User Top of Form LF Revise Adjust the line feed 2 amount 1 0 1 2 Centering Position Select to limit printhead Default travel when printing Mode 1 narrow columns Mode 2 Select Model for ML5720 and ML5790 Select Mode 1 or Mode 2 for ML5721 and ML5791 Operating instructions gt 47 FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Pull Li
23. 6 3 mm 11 2 3 304 8 mm 12 355 6 mm 14 420 9 mm 16 57 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 Wait Time Select the waiting time between setting paper on the tray and feeding it while the printer is waiting for paper to be fed in cut sheet manual feed mode Invalid 0 5 sec 1 0 sec 1 5 sec 2 0 sec 3 0 sec Paper Length Control Control the page length of cut sheet by MENU setting by Actual Page Length by MENU setting by Actual Page Length Operating instructions gt 50 FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Cut Sheet Cut Sheet Auto Select a printable area 6 35 mm 3 12 Front Eject Position at the bottom of cut 12 70 mm 6 12 cont sheet paper in cut sheet 14 82 mm 7 12 mode the character Invalid centre position TOF Adjust Select an adjustment 20 1 30 1 value for the reference 0 0 position in regard to the 1 20 1 30 TOF position of cut sheet paper The position moves to the rear of the form by and to the top of the form by in 1 144 ML5720 21 and 1 180 ML5790 91 increments Cut Sheet Top of Select the reference 2 12 mm 1 12 Form position for the TOF 4 23 mm 2 12 position when feeding 6 35
24. FCONNECHON 62 vise a teas See BR ange hoe Sead Be ee A a 16 EMUlALIONS a nauen iter ud Neko Achebe Oo belye G48 eG aah tt bh ow Aa 16 Installing the printer driver 2 2 0 a a e 16 Printing a test page oeri fe kee ae ee E ee a ee ee ee 16 Printing from a computer 2 0 00 cee ee 17 OKT DIPUS hiato a Bis enti tee ara fe E apa apd a Al lie teins 17 Controlling the printer using DIPUS o o o ooo ooo 17 Paper handling 2 0000 eee eee eee 18 Loading continuous formS o o 18 Feeding continuous forms v svista a ooo 19 Rear feed PUSO o ooocoooo aaa 19 Front feed PUSR ii A a e A a 22 Tearing off continuous forms 000 a 26 Aligning the tear off perforations 0 000002 es 26 Removing continuous forms 000 0c es 27 Loading cut sheet paper cc a a 28 Ejecting cut sheet papers avion ERY pee GE aoa ees 30 Changing paper paths saai Saw eaten dt dedo A 30 Loading the optional cut sheet feeder ccc es 31 Loading the optional roll paper stand ML5720 ML5790 32 Setting the Paper Thickness lever o ooooo ooo 33 Operating instructions 0 000 a 36 Operator panel ara Melee ha A A nae a OE sk eas 36 Indicators Sree Ba ee i aes EN ee ae ea wee A 37 Button FUNCTIONS seaprae m te ed Sd ate Rai ecb oe Pah Bed Poet 39 Setting Menu Valles sa su meme eam ee a os A eB ae ew ye 40 Confirming current settingS 0 ooo eee ee 40
25. ITY 1 2 3 00d PRINT QUALITY Green O N LED 3 LED 2 LED 2 and 3 LED 1 LED 1 and 3 LED 1 and 2 VVVVVV Without ALARM indicator flashing Indicates SSD is selected Indicates HSD is selected Indicates DRAFT is selected Indicates COURIER is selected Indicates GOTHIC is selected Indicates OCR B is selected VVVVVV Operating instructions gt 37 INDICATORS COLOUR STATUS MEANING CHR PITCH Green ON With TEAR indicator ON LED 1 Printer is in MENU setting mode 1 2 oo ON With Alarm indicator flashing CHR PITCH gt LED2 gt Indicates paper loading jam gt LED1I gt Indicates paper park eject jam gt LED 1and2 gt Indicates incorrect media setting ON Without Alarm indicator flashing gt LED2 gt Indicates 10CPI is selected gt LED1 gt Indicates 12CPI is selected gt LED1and2 gt Indicates 15CPI is selected FLASHING With Alarm indicator flashing gt LED2 gt Indicates incorrect paper lever setting FLASHING Without Alarm indicator flashing gt LED2 gt Indicates 17CPI is selected gt LED1 gt Indicates 20CPI is selected gt LED1and2 gt Indicates PROP Proportional is selected ML5790 ML5791 PRINT QUALITY Green ON Without ALARM indicator flashing gt LED3 gt Indicates HSD is selected 1 2 3 gt LED2 gt Indicates DRAFT is selected a o a gt LED 2 and LED 3 gt Indicates COURIER is selected gt LED1 gt Indica
26. LLING THE PRINTER USING DIPUS There are four utilities available within OKI DIPUS Each utility provides access to the printer settings from your computer Using these utilities you can change the button settings menu settings top of form settings and also view the current status of the printer Any changes made can then be uploaded to the printer and it will be saved to the printer as new settings These utilities are an alternative to the printer operator panel Button setup utility Using this utility you can activate or deactivate buttons on your printer operator panel Each button and its function is described in a message view Menu setup utility Using this utility you can view and change your printers Menu settings Status monitor The Status Monitor utility allows you to view your printers current status for example On line On line power saving and so on In the event of a printer error occurring a warning message is also displayed TOF setup utility Using this utility you can now set the first line of print TOF for each page This utility allows you to treat each print job individually For detailed information on each utility and the different settings contained within refer to the on line help by clicking each window Help button Printing from a computer gt 17 PAPER HANDLING This section describes how to use cut sheet paper and continuous forms in your printer LOADING CONTINUOUS FORMS Setting up
27. ND WARNINGS NOTE A note provides additional information to supplement the main text CAUTION A caution provides additional information which if ignored may result in equipment malfunction or damage WARNING A warning provides additional information which if ignored may result in a risk of personal injury For the protection of your product and in order to ensure that you benefit from its full functionality this model has been designed to operate only with genuine original ribbon cartridges Any other ribbon cartridge may not operate at all even if it is described as compatible and if it does work your product s performance and print quality may be degraded Specifications subject to change without notice All trademarks acknowledged Notes cautions and warnings gt 6 INTRODUCTION Congratulations on purchasing this printer This printer series is designed to provide highly reliable letter quality printing and high resolution graphics for the desktop office printing environment It combines state of the art 18 pin ML5720 ML5721 and 24 pin ML5790 ML5791 serial impact dot matrix printing technology with advanced materials and superior construction to provide high performance and versatility in a desktop sized unit Careful attention to ergonomics and application needs provides user friendly operation for operators of varying technical capabilities ABOUT THIS GUIDE This manual is your user s gu
28. Odd Odd parity Even when Even Even parity Ignore connec Ignore Do not convert ted to the character to 0x40 in Serial case of parity error Interface Serial Data 7 8 Select Serial bit 8 bit Bits 7 bit Protocol Select an I F Busy Ready Busy control method X On X OFF Ready Busy amp X ON X OFF Operating instructions gt 54 FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Serial I F Diagnostic Test Select to perform input No cont output diagnosis of Yes Displ RS 232C interface ayed signals when connec Busy Line Select to set the Busy SSD ted to Line SSD Serial DTR Interface RTS Baud Rate Select to set the Baud 9 600 bps Rate 4 800 bps 2 400 bps 1 200 bps 600 bps 300 bps 19 200 bps DSR Signal Select the DSR Signal Valid Invalid DTR Signal Select a method to Ready on Power Up switch a DTR signal of a Ready on Select serial interface Busy Time Select the minimum 0 2 sec time between BUSY to 1 0 sec READY Stop Bit Select the stop bit 1 bit 2 bit Receive error Select the receive error Checked Unchecked CSF Bin 1 Line spacing Select line feed pitch 6 LPI Display 8 LPI ee Page Width Change to 8 inch to print 203 2 mm 8 C E Displayed only for on letter size paper 345 44 mm 13 6 ela ML5721 ML5791 feeder is installed page Length Select the length of cut 279 4 mm 11 Cut Sheet Auto Eject Position sheet Select a printab
29. Power Switch to OFF NOTE Ensure that the ribbon cartridge is properly installed before printing a Test Page Set the Paper Type Lever to cut sheet and set the Paper Thickness Lever to position 1 Press and hold the SEL and LF FF button and turn the Power Switch to ON The SEL LED will flash Press and hold down the LF FF button and then press the LOAD EJECT button again The alarm indicator should be illuminated to indicate that there is no paper in the printer With the long side of the paper against the paper guide insert the paper carefully into the printer The printer will automatically grip the paper The printer will start the test print NOTE If required you can pause the test print by pressing the SEL button and then resume the test print by again pressing the SEL button Getting started gt 13 7 When the test print has completed press the LOAD EJECT button to eject the paper NOTE If you want to abort the test print for any reason press the SEL button followed by the LOAD EJECT button to eject the paper and then turn the printer Power Switch to OFF Getting started gt 14 CONNECTING TO A COMPUTER In this section you will interconnect your printer and computer install the printer driver in your computer and print a test page INTERCONNECTING PRINTER AND COMPUTER INTERFACES Your printer is equipped with two standard data interfaces gt Parallel for direct connection to a PC This
30. TOF Over Operating instructions gt 53 FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Set up Print Direction at Select the print direction Uni directional cont DH Mode at the double height Bi directional printed Sleep Mode Set whether to enable or Enable disable sleep mode Disable Sleep Time Set idle time to enter 5 min sleep mode 10 min 15 min 30 min 60 min Pin Control Select whether to have Standard or not have print control Special during line printing Pin Control Select Select the method to Modei print lines when Special Mode2 is selected in Pin Control menu Paper End Select when to detect On line Paper End Off line FF Function Set feeding operation Eject upon receiving an FF Form Feed code after cut paper is fed Cut Sheet Park Select Valid to enable Invalid Function paper feed out of the cut Valid sheet Feed Up when Select Yes to move the No Menu Printing paper to the top coverto Yes see the MENU printing Parallel I prime Select whether to print Invalid I F or clear buffer contents Buffer Print upon initialisation by Buffer Clear receiving I PRIME Auto Feed XT Select the validity of an Valid Displayed only for Auto Feed XT signal Invalid EPSON emulation Bi direction Set whether to return a Enable device ID or not in Disable accordance with IEEE1284 Serial I F Parity None Absence of parity None Displ bit Odd ayed
31. UTIONS COM
32. actor and slide the Pin Tractor as required to adjust the paper position relative to the first horizontal character centre mark Press the locking lever back down to lock the Pin Tractor in the desired position 6 Lift the locking lever 2 of the left Pin Tractor and slide the Pin Tractor to the required position to accommodate the width of the continuous forms to be used Move the rear paper guide 3 to midway between the left and right Pin Tractors 7 Open the left and right Pin Tractor covers 1 and feed the continuous forms in the direction of the arrows locating the sprocket holes 2 in the forms onto the sprocket pins Ensure that the forms are properly aligned on the sprocket pins then close the covers 8 Adjust the left Pin Tractor to accommodate the width of the continuous forms taking care that the forms are held neither too loosely nor too tightly between the Pin Paper handling gt 20 10 Tractors Press the locking lever down to lock the right Pin Tractor in the desired position a bo amp x O x Lower the top paper tray and slide it towards the front of the printer until the marks align Press the LOAD EJECT button The continuous forms will be taken into the printer and positioned at the first line print position and the SEL indicator will illuminate NOTE gt Raise the top paper tray if the paper does not feed properly when the rear tractor is used This will stabilise the paper move
33. alue for the reference 4 23 mm 2 12 cont position in regard to the 6 35 mm 3 12 Top of Form of a 8 47 mm 4 12 continuous form 10 58 mm 5 12 12 70 mm 6 12 14 82 mm 7 12 16 93 mm 8 12 19 05 mm 9 12 21 17 mm 10 12 23 28 mm 11 12 25 40 mm 12 12 27 52 mm 13 12 User Top of Form LF Revise Adjust the line feed 2 amount 1 0 1 2 Centering Position Select to limit printhead Default travel when printing Model narrow columns Mode2 Select Model for ML5720 and ML5790 Select Mode 1 or Mode 2 for ML5721 Front Line Spacing Select line feed pitch 6 LPI Feed 8LPI Push Form Tear Off When printer is idle 0 5 Manual 1 0 or 2 0 sec paper is 0 5 sec advanced from the 1 0 sec current print position to 2 0 sec the tear position When data is received paper is moved to its original printing position Skip Over Select whether to skip No Perforation over perforation or not 25 4 mm 1 When a skip over perforation command is received the received command is given priority Page Width Displayed only for ML5721 and ML5791 Change to 8 to print on narrow paper 345 44 mm 13 6 203 2 mm 8 Operating instructions gt 46 GROUP Front Feed Push cont ITEM Page Length FUNCTION Select the length of a continuous form SETS ML5720 ML5721 ML5790 ML5791 279 4 mm 11 296 3 mm 11 2 3 304 8 mm
34. aper is fed straight into the printer to avoid the possibility of skew printing irregular line feeding and paper jam 7 Ensure that the forms are properly aligned on the sprocket pins then close the Pin Tractor covers 8 Adjust the right Pin Tractor to accommodate the width of the continuous forms taking care that the forms are held neither too loosely nor too tightly between the Pin Tractors Press the locking lever down to lock the right Pin Tractor in the desired position 9 Attach the front cover back in position and close the front cover 10 Press the LOAD EJECT button The continuous forms will be taken into the printer and positioned at the first line print position and the SEL indicator will illuminate NOTE When loading a specific type of continuous media using the Front Feed if you encounter paper jam erratic line spacing or misalignment between the sheets of the multi part paper due to the paper crumpling at the perforations and varying binding strength use the optional pull tractor bottom feed to load this type of media Dismounting the front pin tractor To dismount 1 Ensure that the printer is turned OFF 2 Hold the Pin Tractor by its tabs on both sides Paper handling gt 25 Push the tabs in the arrow direction and then pull the Pin Tractor in your direction to release it TEARING OFF CONTINUOUS FORMS 1 2 With the SEL indicator illuminated press the TEAR button to feed th
35. arting 10 1 2 position on printing in 0 the reverse direction 10 1 The position moves to the right or left in 1 720 in increments Print Registration Adjust the print starting 10 1 3 position on printing in 0 the reverse direction 10 1 The position moves to the right or left in 1 720 in increments Print Registration Adjust the print starting 10 1 4 position on printing in 0 the reverse direction 10 1 The position moves to the right or left in 1 720 in increments 7 or 8 Bits Data Select data word 7 Word lengths 8 Operator Panel Select full or limited Full Operation Function operation Limited Operation Reset Inhibit Changing this to Yes No prevents a reset signal Yes from the computer from resetting the printer to its defaults Print Suppress Select whether to enable No Effective or disable a print Yes suppress setup command Auto LF Select whether to No perform auto LF Yes operation or not upon receiving a CR code If your print out is consistently double spaced select No if it overprints select Yes Auto CR Select Yes to adda No Displayed only for carriage return when a Yes IBM emulation Line Feed is received at the end of a line Operating instructions gt 52 Set up cont FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Print DEL Code Change the setting to No Displayed only for Yes to print the DEL code Yes
36. ausing incorrect line spacing gt Using Seal type cards for example to print bank credit card balance statements may cause ink to transfer when the printed sides overlap Test it thoroughly to ensure it does not cause problems CAUTION gt Do not use Labels in individual sheets as the printing is not guaranteed Test thoroughly before use gt Be careful when using Labels as they may peel of their carrier sheet if the adhesive is not strong This can result in paper jam Feed Labels from the Front Tray instead of the Top Tray as feeding from the top may cause the Labels to peel off and cause paper jams For information on using Envelopes Labels and Card stock paper refer to the Technical Reference Guide Paper handling gt 35 OPERATING INSTRUCTIONS OPERATOR PANEL MICROLINE 5720 MENU SSD RESET E TEAR OFF E E O E mHIGH ALARM SEL LF FF Loap Eyect TEAR PRINT QuaLiry DRAFT CHR PITCH PRINTSPEED __ SPEED mu COURIER m 17CPI QUIET m GOTHIC 20CPI HIGH mOCR B Prop Copy MICROFEED MICROFEED SLEEP GROUP ITEM SET el Menu EXIT PREVIOUS MICROLINE 5790 RESET DRA TEAR OFF ALARM SEL LF FF Loap EJECT TEAR PRINT QUALITY COURIER CHR PITCH ma ROMAN m Swiss Swiss B ORATOR MICROFEED MICROFEED mm2 GOTHIC mam PRESTIGE SLEEP Group ITEM Ser PRINT m t OCR A Menu Exit EE A ma OCR B PREVIOUS The status alarm indicators and button switches on the operato
37. crobat You can access specific information in two ways gt In the list of bookmarks down the left hand side of your screen click on the topic of interest to jump to the required topic If the bookmarks are not available use the Contents on page 4 gt In the list of bookmarks click on Index to jump to the Index If the bookmarks are not available use the Contents on page 4 Find the term of interest in the alphabetically arranged index and click on the associated page number to jump to the page containing the term Introduction gt 7 PRINTING PAGES The whole manual individual pages or sections may be printed The procedure is 1 From the toolbar select File then Print or press the Ctrl P keys 2 Choose which pages you wish to print a All pages 1 for the entire manual b Current page 2 for the page at which you are looking p Printer Nome proper Status Ready I Reverse pages Type I Printas image Where LPTI I Printto file Print Range Copies and Adjustments 1 6 i226 pages ee Numberofeopies f 4 2 r Current page 3 A Pages from i to 226 Shrink oversized pages to paper size 7 R Pone Even and Oda Pages M Expand small pages to paper size F Auto rotate and center pages Y Comments praia Oplan Preview k 8 25 4 PrintMethod Language Level 3 2 F Optimize for Speed T Download Asian Fonts T Save Printer Memory Color Managed On printe
38. d paper feeding and printing may not work properly 7 With the printing side downwards for top feed and upwards for front feed and the left edge aligned with the Paper Guide 1 carefully insert the paper on the Paper Tray 2 into the printer until it is gripped Top Feed Front Feed NOTE gt Ensure that the paper is accurately aligned along the Paper Guide to avoid the possibility of skew printing and paper jam gt When printing an envelope do not fold up the flap A flap aligned along the Paper Guide can lead to skew printing gt If you are feeding thick paper push it in sufficiently until it touches the feed rollers to avoid the possibility of skew printing and paper jam Paper handling gt 29 EJECTING CUT SHEET PAPER When the printer reaches the end of the cut sheet page it automatically ejects the page If required add another sheet for the printer to continue printing from where it left off To eject a cut sheet left in the printer carry out the following 1 Press the SEL button to put the printer off line 2 Press the LOAD EJECT button and the paper is ejected to the Paper Tray NOTE Paper longer than A4 length 297 mm may overlap and possibly fall off the Paper Tray CHANGING PAPER PATHS You can switch to cut sheet printing without removing continuous forms from the printer Continuous forms to cut sheet 1 Tear the continuous form at the tear off position 2 Press the LOAD EJECT b
39. d forms with their left holes in line with the right ones Inadequate distance between the left and right Pin Tractors making for loose paper Relocate the Pin Tractors to tighten the paper Skew paper feeding Move the paper to make it straight Paper movement is blocked Remove the blockage Paper source is too far from the printer Move the paper source nearer to the printer Paper not specified for the printer Use paper types specified for this printer Several blank lines appear in the printout Skip over perforation spacing is selected Cancel the skip over perforation spacing The selected skip over perforation spacing does not match the physical tear off perforation positions The paper length selected in the application does not match the physical paper length Match the paper length selected in the application with the physical paper length in use Select the paper length in number of lines in the application Abnormal switchover betwe en cut sheet and continuous forms modes No cut sheet feed The printer is in continuous forms mode Set the Paper Type lever to cut sheet mode No continuous forms feed The printer is in cut sheet mode Set the Paper Type lever to continuous forms mode Troubleshooting gt 65 PROBLEM ACTION Paper feed operations for The cut sheet is not ejected Eject the cut sheet both c
40. e continuous forms to the tear off position Carefully tear off the forms along the tear off perforations in the direction shown Using excessive force may result in tearing at a position other than the tear off perforations When data is received by the printer or when the SEL button is pressed to select the printer the continuous forms is repositioned to the first line print position ALIGNING THE TEAR OFF PERFORATIONS If the tear off perforations are not aligned with the paper cutter on the Top Cover align them as follows 1 2 With the SEL indicator illuminated press the TEAR button to move the tear off perforations to the paper cutter on the Top Cover Check the position of the tear off perforations relative to the paper cutter Adjust to the desired tear off position using Line Feeds LF a To move the form forward press the TEAR and the SEL buttons together b To move the form backward press the TEAR and the LF FF buttons together NOTE ML5720 ML5721 Line Feeds are at 1 144 in ML5790 ML5791 Line Feeds are at 1 180 in Release the buttons after the tear off perforations have been aligned with the paper cutter When data is received by the printer or when the SEL button is pressed to select the printer the paper will retract to the new position Paper handling gt 26 REMOVING CONTINUOUS FORMS 1 Tear off the continuous forms See Tearing off continuous forms on page 26 2 Press the
41. e paper roller back into the stand with the disc on the left side Paper handling gt 32 10 11 12 13 14 Feed the paper over the roller on the stand Set the paper onto the platen from the top of the tension bar Rotate the platen knob until the top edge of the paper reaches the roll paper and then set the Paper Type Lever to PULL to easily adjust the paper position Align the paper so that the exit and entry paper edges align Reset the Paper Type Lever to RPS Move the paper guide and adjust it to the width of the paper Lower the paper separator to its original position Turn the platen knob to move the paper to the point where you want printing to start CORRECT PAPER PATH a Paper Roll b Roll Paper Stand c Platen d Paper Guide SETTING THE PAPER THICKNESS LEVER There are 10 lever positions for printing purposes The 10t position is also to facilitate ribbon replacement Set the Paper Thickness lever for different paper types as follows LEVER POSITION PAPER TYPE 6 7 8 9 10 REMARKS Cut sheet paper See below 52 81 gsm Xx 81 128 gsm Xx 128 156 gsm Xx Postcard X Envelope x Continuous paper See below 52 81 gsm Xx 81 128 gsm Xx Paper handling gt 33 LEVER POSITION PAPER TYPE 6 7 8 9 10 REMARKS Carbon paper or See below Pressure sensitive paper 40 gsm 2 part X
42. erbo Croatic I Serbo Croatic II ECMA 94 Hungarian CWI Windows Greek Windows East Europe Windows Cyrillic East Europe Latin II 852 Cyrillic 1 855 Cyrillic 11 866 Kamenicky MJK ISO Latin 2 Hebrew NC 862 Hebrew OC Turkey_857 Latin 5 Windows Turkey Windows Hebrew Ukrainian Bulgarian ISO Latin 6 8859 10 Windows Baltic Baltic_774 KBL Lithuanian Cyrillic Latvia Roman 8 Icelandic 861 Multilingual 858 Greek_437 CYPRUS Polska Mazovia Serbo Croatic I Serbo Croatic II ECMA 94 Hungarian CWI Windows Greek Windows East Europe Windows Cyrillic East Europe Latin II 852 Cyrillic 1 855 Cyrillic 11 866 Kamenicky MJK ISO Latin 2 Hebrew NC 862 Hebrew OC Turkey_857 Latin 5 Windows Turkey Windows Hebrew Ukrainian Bulgarian ISO Latin 6 8859 10 Windows Baltic Baltic_774 KBL Lithuanian Cyrillic Latvia Roman 8 Icelandic 861 Multilingual 858 ISO 8859 15 ISO 8859 15 Greek_737 Greek_737 POL1 Asmo 449 Macedonian Asmo 708 BRASCII Arabic 864 Abicomp Windows Arabic POL1 Macedonian BRASCII Abicomp Slashed Letter O Set whether to convert Yes slashed 0 located at 9BH No and 9DH in USA code page or not Operating instructions gt 44 Rear Feed Push FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Line Spacing Select line feed pitch 6 LPI 8LPI Form Tear Off When printer is idle 0 5 Manual 1 0 or 2 0 sec paper is 0 5 sec advanced from the 1 0 sec current
43. ide check the web site www okiprintingsolutions com for the most up to date version for your printer and forms part of the overall user support listed below gt Installation Safety booklet provides information as to safe use of the printer This is a paper document that is packaged with the printer and should be read before setting up your printer gt Set up guide to describe how to unpack connect and turn on your printer This is a paper document that is packaged with the printer gt This User s Guide to help you to become familiar with your printer and make the best use of its many features Also included are guidelines for troubleshooting and maintenance to ensure that it performs at its best This is an electronic document stored on the manuals CD gt Technical Reference Guide to provide detailed technical information for programmers and more technical users This is an electronic document available on the support web site gt Network Guide to provide detailed technical information for network administrators to configure the optional accessory network interface This is an electronic document stored on the CD that accompanies the network interface card optional accessory gt On line Help on line information accessible from the printer driver and utility software ON LINE USAGE This guide is intended to be read on screen using an Adobe Acrobat Reader Use the navigation and viewing tools provided in A
44. instructions 36 button functions 39 indicators ieaie 37 option order numbers 77 optional loading cut sheet arder 31 loading the roll paper adictas iee 32 roll paper stand 31 P paper jams continuous forms 60 Cut sheet iiite 59 printer locatio Ne ni 11 DES eels oe Sake es 9 test Printiitie ties 13 printing files 17 R ribbon Changing 68 Orderin A aai 72 S setting paper thickness 33 specifications secc 78 switching OFF eeeee 12 switching ON eee 11 T A inen 16 TOF SAVING in eaaa a iiaii 58 Ca A evista 57 U user guide SE tics 7 DANI is a 8 Index gt 79 OKI PRINTING SOLUTIONS CONTACT DETAILS Oki Systems UK Limited 550 Dundee Road Slough Trading Estate Slough SL1 4LE Tel 44 0 1753 819819 Fax 44 0 1753 819899 http www oki co uk Oki Systems Ireland Limited The Square Industrial Complex Tallaght Dublin 24 Ireland Tel 353 1 4049590 Fax 353 1 4049591 http www oki ie OKI Systems Northern Ireland 40 Sydenham Park Belfast BT4 1PW Tel 44 0 28 90 20 1110 http www oki ie Technical Support for all Ireland Tel 353 1 4049570 Fax 353 1 4049555 E mail tech support oki ie Oki Printing Solutions contact details gt 80 OKI EUROPE LIMITED Blays House Wick Road Egham Surrey TW20 0H United Kingdom Tel 44 0 208 219 2190 Fax 44 0 208 219 2199 WWW OKIPRINTINGSOL
45. le area at the bottom of cut sheet paper in cut sheet mode the character centre position 296 3 mm 11 2 3 304 8 mm 12 355 6 mm 14 420 9 mm 16 57 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 6 35 mm 3 12 in 12 7 mm 6 12 in 14 82 mm 7 12 in Operating instructions gt 55 FUNCTION SETS ML5720 ML5721 ML5790 ML5791 CSF Bin 1 TOF Adjust Select an adjustment 20 1 cont value for the reference 0 Display position in regard to the 1 20 ed when TOF position of cut sheet Single bin paper Cut sheet The position moves to feeder is the rear of the form by installed and to the top of the form by in 1 60 in increments Cut Sheet Top Of Select the reference 2 12 mm 1 12 Form position for the TOF 4 23 mm 2 12 position when feeding 6 35 mm 3 12 cut sheet Up to the 8 47 mm 4 12 mid section of 10 58 mm 5 12 characters in the first 12 70 mm 6 12 line 14 82 mm 7 12 16 93 mm 8 12 19 05 mm 9 12 21 17 mm 10 12 23 28 mm 11 12 25 40 mm 12 12 27 52 mm 13 12 User Top of Form LF Revise Adjust a line feed 14 1 amount in the cut sheet Oo mode 1 14 Centering Position Select to limit printhead Default travel when printing Mode 1 narrow column
46. ment and prevent significant misalignment between the sheets when multi part paper is used and also erratic line spacing gt When loading a specific type of continuous media using the Rear Feed if you encounter paper jam erratic line spacing or misalignment between the sheets of the multi part paper due to the paper crumpling at the perforations and varying binding strength use the optional pull tractor bottom feed to load this type of media Dismounting the rear pin tractor To dismount 1 2 Ensure that the printer is turned OFF Remove the top tray by holding the tray by the tabs on both sides and pulling it up from the printer Hold the Pin Tractor by its tabs on both sides Paper handling gt 21 4 Push the tabs in the arrow direction and then pull the Pin Tractor in your direction to release it FRONT FEED PUSH NOTE If there is a cut sheet in the printer eject it as described in Ejecting cut sheet paper on page 30 Moving the tractor assembly 1 Ensure that the printer is turned OFF 2 Disconnect the power cord 3 Open the Top Cover WARNING Be careful as the print head may be hot after operation Allow it to cool before touching it Paper handling gt 22 Remove the Pull up Guide assembly support Turn the printer so that the back of the printer is facing you Remove the tractor assembly See Dismounting the rear pin tractor on page 21 Turn the printe
47. names and brand names are registered trademarks or trademarks of their proprietors As an ENERGY STAR Program Participant the manufacturer has determined that this product meets the ENERGY STAR guidelines for energy efficiency This product complies with the requirements of the Council Directives 2004 108 EC EMC 2006 95 EC LVD and 2009 125 EC EuP as amended where applicable on the approximation of the laws of the member states relating to C electromagnetic compatibility low voltage and Energy Using Products This product complies with EN55022 Class B However when fitted with the optional network interface card RS232C serial interface card or optional cut sheet feeder compliance to EN55022 is Class A In a domestic environment this configuration may cause radio interference in which case the user may be required to take adequate control measures The following cables were used to evaluate this product to achieve EMC directive 2004 108 EC compliance and configurations other than this may affect that compliance CABLE TYPE LENGTH CORE SHIELD METRE Power 1 8 x x USB 5 0 x Vv Parallel 1 5 x Vv LAN 5 0 x x Serial 2 1 x Vv Preface gt 2 MANUFACTURER Oki Data Corporation 4 11 22 Shibaura Minato ku Tokyo 108 8551 Japan IMPORTER TO THE EU AUTHORISED REPRESENTATIVE Oki Europe Limited trading as OKI Printing Solutions Blays House Wick Road Egham Surrey TW20 OHJ
48. ne Spacing Select line feed pitch 6 LPI 8 LPI Skip Over Select whether to skip No Perforation over perforation or not 25 4 mm 1 When a skip over perforation command is received the received command is given priority Page width Change to 8 to print on 345 44 mm 13 6 Displayed only for narrow paper 203 2 mm 8 ML5721 ML5791 Page Length Select the length of a 279 4 mm 11 continuous form 296 3 mm 11 2 3 304 8 mm 12 355 6 mm 14 431 8 mm 17 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 LF Revise Adjust the line feed 2 14 1 amount 1 0 o 1 14 1 2 Centering Position Select to limit printhead Default travel when printing Mode 1 narrow columns Mode 2 Select Model for ML5720 ML5790 Select Mode 1 or Mode 2 for ML5721 ML5791 Cut Sheet Line Spacing Select line feed pitch 6 LPI Top 8 LPI Form Tear Off When printer is idle 0 5 Manual Displayed when 1 0 or 2 0 sec paper is 0 5 sec connected to the advanced from the 1 0 sec RPS current print position to 2 0 sec the tear position When data is received paper is moved to its original printing position Page width Change to 8 to print on 345 44 mm 13 6 Displayed only for narrow paper 203 2 mm 8 ML572
49. ns Operating 5 C 35 C 20 80 RH Testing condition for print precision 15 C 30 C 40 70 RH 10 C 50 C 5 95 RH Storage When the printer is stored it should be in its original packaging with no moisture formation Noise level The acoustic noise of this product is less than 57dB A ML5720 ML5721 and 57dB A ML5790 ML5791 as measured in accordance with EN ISO 7779 Specifications gt 78 INDEX A alarm indications 0 62 aligning perforations 26 changing paper paths continuous forms to cut Sheets vei oa 30 cut sheet to continuous OMS aia dilo 30 cleaning 4 1 0 0 ere 67 interior continuous forms front feed 22 rear feed 19 controlling the printer using DIPUS aii 17 D DIPUS button setup utility 17 menu setup utility 17 status monitor 17 TOF setup utility 17 dismounting front pin tractor 25 rear pin tractor NC ee eeee eens E ejecting paper continuous formsS 26 cut sheet 30 emulations occocccccncccnnnnnnnns 16 F fault fINdING eee 62 I installing options cut sheet feeder 73 network interface card 77 roll paper stand 75 serial interface card 77 interface parallelisimi 15 USB ii a diana 15 L loading paper continuous forms a cut sheet menu settings O operating
50. ns described here are as in Print mode SWITCH STATUS FUNCTION SEL On line Sets the printer to off line Off line Sets the printer to on line LF FF On line Off line Feeds paper by one line When pressed for more than 500ms performs form feed LOAD EJECT On line Off line When no paper is loaded Performs paper feed When paper is loaded Continuous forms Retracts the form to the Pin Tractor Cut sheet paper Ejects the cut sheet Pull feed Ineffective TEAR On line Off line Continuous forms Pull feed Delivers the continuous form to the cut position Ineffective PRINT QUALITY On line Off line Select a font CHR PITCH On line Off line Select a character pitch PRINT SPEED On line Off line Select print speed SEL LF FF On line Off line Ineffective SEL LOAD EJECT On line Ineffective Off line Holding down the SEL button and pressing the LOAD EJECT button initialises the new Menu settings SEL CHR PITCH On line Ineffective Off line Selects MENU configuration LF FF LOAD EJECT On line Off line Ineffective LOAD EJECT SEL On line Off line ML5720 ML5721 Performs microfeed forward 1 144 inch when paper is loaded ML5790 ML5791 Performs microfeed forward 1 180 inch when paper is loaded LOAD EJECT LF FF On line Off line ML5720 ML5721 Performs microfeed reverse 1 144 inch when paper is loaded ML5790 ML5791 Performs micr
51. ofeed reverse 1 180 inch when paper is loaded TEAR SEL On line Off line ML5720 ML5721 Performs microfeed forward 1 144 inch when paper is in tear off position ML5790 ML5791 Performs microfeed forward 1 180 inch when paper is in tear off position Operating instructions gt 39 SWITCH STATUS FUNCTION TEAR LF FF On line Off line ML5720 ML5721 Performs microfeed reverse 1 144 inch when paper is in tear off position ML5790 ML5791 Performs microfeed reverse 1 180 inch when paper is in tear off position PRINT QUALITY SEL On line Off line ML5720 ML5721 Performs microfeed reverse 1 144 inch when paper is in Top of Form position ML5790 ML5791 Performs microfeed reverse 1 180 inch when paper is in Top of Form position PRINT QUALITY LF On line Off line FF ML5720 ML5721 Performs microfeed forward 1 144 inch when paper is in Top of Form position ML5790 ML5791 Performs microfeed forward 1 180 inch when paper is in Top of Form position CHR PITCH PRINT On line Off line Enters menu mode SPEED SETTING MENU VALUES The following information explains the printer settings and how you can change them Printer items and their values are printed for reference CONFIRMING CURRENT SETTINGS To print the current menu settings use a cut sheet of A4 paper or continuous forms of width at least 254 mm In this example two sheets of A4 paper is used
52. ont feed CONTINUOUS FORMS JAMMED IN PRINTER Do not carry out any operations inside the printer with the Power Switch set to ON 1 Set the Power Switch to OFF Open the Top Cover 3 Tear off any unprinted continuous forms Troubleshooting gt 60 4 Remove the top Paper Tray by holding the tray by the tabs on both sides and pulling it up from the printer 5 Raise each Pin Tractor cover and remove the continuous forms from the Pin Tractors 6 Rotate the platen knob and remove the forms from the front of the printer 7 If a form fragment remains inside the printer place two or three forms in a stack on the Pin Tractors and turn the platen knob to push the fragment out of the printer 8 When the paper jams are cleared lower the top Paper Tray and slide it towards the front of the printer until the marks align 9 Close the Top Cover Troubleshooting gt 61 10 Set the Power Switch to ON NOTE Use the above procedure to clear paper jam when using continuous form front push RESPONDING TO ALARM CONDITIONS Use the following table for guidance on how to respond to indicated alarm conditions INDICATOR ALARM MEANINGS AND ACTIONS ALARM OFF ON Paper has run out Add paper and press the SEL button OFF Flashing The Paper Type lever is wrongly set for the type of paper in use Press the SEL button and set the Paper Type lever to the correct position OFF Flashing Problem wi
53. per should not exceed 16mm thickness Insert the paper stack into the hopper and push it against the left paper guide 5 making sure that the paper fits under the corner separators Move the rear sheet support 4 to the center Adjust the right paper guide to the paper width 2 Paper handling gt 31 11 12 13 Push both paper guide locking levers 6 upward into the locked position Push the paper set lever gently backward into the SET position CAUTION Ensure that the paper set lever is closed towards the SET position before printing with the CSF If it is left open the friction rollers will not be able to feed the paper and the printer will print on the platen and may damage the printhead and platen Attach the front sheet support 3 LOADING THE OPTIONAL ROLL PAPER STAND ML5720 ML5790 NOTE For installation instructions see Installing the Roll paper stand ML5720 ML5790 on page 75 1 Roll Paper Stand 2 Paper Shaft 3 Paper Separator 4 Tension Bar 5 Paper Guide Set the Paper Type Lever to RPS Open the Top Cover and adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 Open the paper separator all the way Remove the paper roller Note that there is a disk on the left end of the roller Slide the roller into a tube of paper Ensure the disk is on the left side and paper must roll up from the bottom Replace th
54. perly Replace the ribbon cartridge by a new one A line of print is missing Broken wire pins Contact your dealer The printout differs from the screen display Printout of completely different characters or symbols Incorrect print setup for the user application Reselect print setup for the applications according to priority The application control codes for the previous print operation are still enabled Initialise the printer The input application control signal is not correct Print in hex dump mode and verify the data content Make corrections in the application The interface cable is not properly connected Reconnect the cable correctly Troubleshooting gt 63 PROBLEM Too high or too low TOF where printing starts CAUSE The TOF is not correctly selected ACTION Initialise the printer Select correct TOF for cut sheet and continuous forms Select the first line print position and adjust the paper top position Reselect the margin correctly in the application Too large or small left and or right margins The left or right margin is not correctly selected Incorrect positions of the Paper Guide or Pin Tractors Select and adjust the position again depending on the paper type Reselect the left and right margins correctly in the application When continuous forms are used the content of a single form i
55. print position to 2 0 sec the tear position When data is received paper is moved to its original printing position Skip Over Select whether to skip No Perforation over perforation or not 25 4 mm 1 When a skip over perforation command is received the received command is given priority Page Width Displayed only for ML5721 and ML5791 Change to 8 to print on narrow paper 345 44 mm 13 6 203 2 mm 8 Page Length Select the length of a continuous form 279 4 mm 11 296 3 mm 11 2 3 304 8 mm 12 355 6 mm 14 431 8 mm 17 76 2 mm 3 82 6 mm 3 25 84 7 mm 10 3 88 9 mm 3 5 93 1 mm 11 3 101 6 mm 4 127 0 mm 5 139 7 mm 5 5 152 4 mm 6 177 8 mm 7 203 2 mm 8 215 9 mm 8 5 Initial Position Select the vertical print Print Position position when printer is Cut Position turned on Cut Position Adjust Select an adjustment 20 1 30 1 value for the position to 0 0 cut the end of a 1 20 1 30 continuous form TOF Adjust Select an adjustment 20 1 30 1 value for the reference 0 0 position in regard to the 1 20 1 30 TOF position of a continuous form Operating instructions gt 45 GROUP ITEM FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Rear Feed Continuous Paper Select an adjustment 2 12 mm 1 12 Push Top of Form v
56. r Units Inches Zoom 141 4 Printing Tips Cancel c Pages from and to 3 for the range of pages you specify by entering their page numbers sf roas efi af es orzes ela sesxezein IEN SMW SD A Miaercesdeikion Gyeling 68 mas SEARS lacado Acrobat 1 BiesePant Shop 3 Click on OK Introduction gt 8 GETTING STARTED WARNING If you have not already done so familiarise yourself with the content of the Installation Safety booklet supplied with your printer RETAINING PACKING MATERIALS After setting up your printer according to the instructions in the Set up Guide retain your packing materials and container in case you ever need to ship or transport your printer IDENTIFYING COMPONENT PARTS The main parts of your printer are identified and briefly explained below FRONT VIEW 1 Power Switch to turn the printer power ON OFF 2 Operator Panel contains button switches and indicators described in detail later see Operator panel on page 36 that allow you to operate the printer 3 Front Feed Paper Tray to feed cut sheet from the front 4 Front Cover open to fit the front feed paper tray or to fit the tractor 5 Platen Knob 6 Paper Type Lever set according to the type of paper feed front feed cut sheet continuous rear feed continuous front feed or continuous bottom pull 7 Pull up Guide Assembly support 8 Top Feed Paper Tray raise to feed cut sheet paper f
57. r so that the front is facing you Replace the top paper tray by aligning the arrows and then pushing it down Paper handling gt 23 10 11 Close the Top Cover Open and remove the front cover 1 NOTE If front cover is already open and the front cut sheet paper tray has been installed gently lift the tray from the bottom and remove it and then remove the front cover 12 Holding by the tabs guide the tractor into the side frames and push it downwards to lock it in place Loading continuous form front 1 Ensure that the printer is turned ON Ensure that the Paper Type Lever is set to Continuous form FRONT HI FRONT Open the Top Cover adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 Lift the locking lever of the left Pin Tractor and slide the Pin Tractor as required to adjust the paper position then press the locking lever back down to lock the Pin Tractor in the desired position Lift the locking lever of the right pin tractor and slide the Pin Tractor to the required position to accommodate the width of the continuous forms to be used Move the paper guide midway between the left and right Pin Tractors Paper handling gt 24 6 Open the left and right Pin Tractor covers and feed the continuous forms in the direction of the arrow locating the sprocket holes in the forms onto the sprocket pins NOTE Ensure that p
58. r panel allow you to check printer status and control the printer You can also use OKI DIPUS utilities to check printer status and control the printer from your computer see OKI DIPUS on page 17 Operating instructions gt 36 INDICATORS INDICATORS SEL ALARM COLOUR STATUS Green Red ON MEANING Printer is on line i e is available to print OFF Printer is off line i e is not available to print FLASHING ON OFF FLASHING When flashing together with the ALARM indicator printing cannot be resumed at this stage Turn the power OFF verify that the carriage moves properly then turn the power ON again If the problem is still there after you turn the power ON again contact your dealer When flashing together with TEAR indicator indicates Top Cover is open Paper end status i e no paper present Printer is in normal state When flashing together with the SEL indicator printing cannot be resumed at this stage Turn the power OFF verify that the carriage moves properly then turn the power ON again If the problem is still there after you turn the power ON again contact your dealer Indicates paper jam media switch incorrect paper lever setting status When flashing together with TEAR indicator indicates High temperature alarm status TEAR Green ON Menu mode OFF Tear down position FLASHING Tear up position ML5720 ML5721 PRINT QUAL
59. ress LOAD EJECT button to step forward and SEL LOAD EJECT to step backward to the required item c When in the required Item press TEAR to step forward and SEL TEAR MENU to step backward to the required value Repeat these steps to change the settings for other items 6 To exit menu settings confirmation save the current settings press CHR PITCH and PRINT SPEED buttons together Save menu is printed 7 Press LOAD EJECT button to eject the cut sheet paper NOTE gt A GROUP is the general classification of functions features gt An ITEM is the name of the function feature gt A SET is the value in an Item gt Switching the printer OFF does not save the new settings Operating instructions gt 41 MENU ITEMS AND SETTINGS In the menu settings tables below factory default settings are shown in bold GROUP ITEM FUNCTION SETS ML5720 ML5721 ML5790 ML5791 Selects both double width and double height character or single width and single height characters Printer Emulation Mode Select emulation mode IBM PPR EPSON FX EPSON LQ IBM PPR Control ML IBM AGM Font Print Mode Select quality of ANK Draft LQ Courier characters NLQ Courier LQ Roman NLQ Gothic LQ Swiss NLQ OCR B LQ Swiss Bold HSD LQ Orator SSD LQ Gothic LQ Prestige LQ OCR A LQ OCR B DRAFT HSD Draft mode Select the draft mode HSD SSD Pitch Select character pitch 10 CPI 12 CPI 15 CPI
60. rking parts with the suction nozzle to avoid possible damage to the printer Cleaning your printer gt 67 CONSUMABLES AND ACCESSORIES CONSUMABLES When the printed image becomes faint or incomplete replace the ribbon cartridge CHANGING A RIBBON CARTRIDGE Only use genuine Original consumables to ensure the best quality and performance from your hardware Non Original products may damage your printer s performance and invalidate your warranty Do not change the ribbon cartridge with the Power Switch set to ON 1 Set the Power Switch to OFF 2 Open the Top Cover and set the paper Thickness lever to position 10 The print head and area around it may be hot after printing Allow it to cool down before touching it 3 Move the carriage to the center 2 for ribbon replacement position Consumables and accessories gt 68 4 Holding the sides of the ribbon guide slope it up and out to remove it from the carriage 5 Holding the ribbon cartridge close to both ends slope it up and out until it unlocks then remove it along the direction indicated by the arrows 6 Dispose of the cartridge in accordance with your local guidelines Consumables and accessories gt 69 7 Remove the new ribbon cartridge from its wrapping and note the position of the Ribbon Guide 1 Knob 2 and Pin 3 8 In the direction indicated by the arrows insert the pins at both ends of the ribbon cartridge 1 into the U
61. rom the top 9 Paper Guide can be adjusted as required to locate the left edge of cut sheet paper 10 Top Cover open and close for access for example when changing a ribbon cartridge Keep closed for noise reduction Getting started gt 9 INTERNAL VIEW 11 Paper Thickness Lever set according to the thickness of the paper 12 Ribbon Cartridge holds the printer ribbon 13 Print Head prints the characters on the paper 14 Pull up Guide assembly remove when using optional Pull tractor and optional Cut sheet feeder REAR VIEW 15 USB connector connect to USB interface cable 16 Parallel connector connect to parallel interface connector 17 Optional Serial Network connector connect to serial interface or network 18 Optional CSF RPS connector connect to cut sheet feeder or roll paper stand 19 Ventilator 20 A C Input connect to printer power cable Getting started gt 10 LOCATING YOUR PRINTER gt Select a firm solid surface on which to site your printer gt Allow enough space around your printer e g at least 60 cm from any wall for easy access to the paper feed paths gt 60cm 75cm gt Make sure a grounded power outlet is available nearby POWERING ON YOUR PRINTER WARNING Operations of this equipment are not warranted when the equipment is connected to UPS Uninterruptible Power Supply and or inverter Doing so may result in damage of this equipment Do not use an
62. s Mode 2 Select Model for ML5720 Select Mode 1 or Mode 2 for ML5721 Extension Detect Sprocket Select Enable when Enable Hole loading continuous form Disable to detect sprocket hole and avoid printing on the hole Right Select to set the blank Right Margin Over Margin Fanfold space width on the 1 mm right side of the 3 mm continuous form 5 08 mm 10 mm 13 mm 15 mm 20 mm 25 mm Right Margin Cut Select to set the blank Right Margin Sheet space width on the 1mm right side of the cut 2mm sheet paper 3 mm 4 mm 5 mm 6 mm Operating instructions gt 56 INITIALISING MENU SETTINGS To restore the menu settings to their initial values carry out the steps below 3 NOTE The values adjusted by the Adjustment menus are not initialised by the following procedure Set the Power Switch to OFF Press and hold down the SEL and LF FF buttons together and then set the Power Switch to ON The SEL LED will flash Press and hold down the TEAR button and then press the SEL button again ADJUSTING TOF POSITION Use the following procedure to set TOF to accord with the reference position 6 35 mm 0 25 in The reference position refers to the first line of the paper i e the position to which the printer feeds the paper when automatically loading the paper NOTE Adjusting of TOF can be done in cut sheet mode or continuous forms mode Print out the menu settings of the printer as in
63. s printed on two forms The paper length selected in the application does not match the physical paper length Match the paper length selected in the application with the physical paper length in use When cut sheets are used the content of a single sheet is printed on two sheets The paper setting selected in the application does not match the physical paper size Match the paper setting selected in the application with the physical paper in use It does not match the lines per page as the printer automatically detected Leave enough top and bottom margin in the application Correct the cut sheet LF adjustment The content of a single line is printed in two lines The left and or right margins are not correctly selected Reselect the left and right margins correctly in the application When continuous forms are used several blank lines appear in the printout Tear off perforation spacing is selected Cancel tear off perforation spacing Broken and uneven vertical lines This may happen in bidirectional printing Use Print Registration in the adjustment mode to adjust Too large or small line spacing Line spacing is not selected correctly Reselect line spacing correctly in the application Split print Blanks appear in graphic printout This is a paper feed error which is especially notable in printing regular characters This is not a fail
64. tes ROMAN is selected PRINT QUALITY gt LED 1andLED3 gt Indicates SWISS is selected gt LED 1 and LED 2 gt Indicates SWISS B is selected gt LED 1 LED 2 and gt Indicates ORATOR is selected LED 3 FLASHING Without ALARM indicator flashing gt LED3 gt Indicates GOTHIC is selected gt LED2 gt Indicates PRESTIGE is selected gt LED 2 and LED 3 gt Indicates OCR A is selected gt LED1 gt Indicates OCR B is selected CHR PITCH Green ON With TEAR indicator ON LED 1 Printer is in the MENU setting mode 1 2 a q FLASHING Without ALARM indicator flashing CHR PITCH gt LED2 gt Indicates 17CPI is selected gt LED1 gt Indicates 20CPI is selected gt LED 1 and LED 2 gt Indicates PROP Proportional is selected ON With ALARM indicator flashing gt LED2 gt Indicates paper loading jam gt LED1 gt Indicates paper park eject jam gt LED 1 and LED 2 gt Indicates incorrect media setting FLASHING With Alarm indicator flashing gt LED2 gt Indicates incorrect paper lever setting PRINT SPEED Green ON With TEAR indicator OFF gt LED2ON gt Indicates NORM Normal Speed is selected 1 2 gt LED1ON gt Indicates HIGH SPEED is selected 0 al gt LEDiand20N gt Indicates QUIET print is selected PRINT SPEED FLASHING gt LED 2 FLASHING gt Indicates HIGH COPY is selected SLEEP Green FLASHING Low power consumption mode Operating instructions gt 38 BUTTON FUNCTIONS The button functio
65. th cut sheet feeding Remove the cut sheet Flashing ON Print data is received but printing does not start because no paper is being fed Insert paper Flashing Flashing Printing cannot be resumed at this stage Turn the power OFF verify that the carriage moves properly then turn the power ON again If the problem is still there after you turn the power ON again contact your dealer RESPONDING TO GENERAL PROBLEMS Use the following table to help you to identify symptoms with possible causes and take suggested remedial actions PROBLEM CAUSE ACTION No power No power The power cable is not Check the power cable is properly connected properly connected at both power outlet and printer Power outlet problem or power outage Plug another appliance into this outlet to check if it works No printing takes place SEL indicator is unlit The printer driver is not installed properly Re install the printer driver correctly The printer has just stopped printing Press the SEL button There is no paper in the printer Load paper SEL indicator is illuminated but no printing takes place Interface cable is disconnected Reconnect the interface cable Wrong interface cable has been used Use correct interface cable The print head is moving but no printing takes place The ribbon cartridge has not been installed Install the ribbon cartridge
66. ure Blanks or deformed characters appear in double height type or other extended types This is a paper feed error due to line feeding in printing a single character This is not a failure Use the printer s built in fonts when you print important documents or bills Troubleshooting gt 64 PROBLEM Improper cut sheet feed CAUSE ACTION No paper feed Sheets are located off the paper guide Load sheets with their left edges against the paper guide Sheets are not loaded to the end Load sheets to the end Continuous forms instead of cut sheets are fed Paper distortion The printer is in the continuous forms mode Sheets are not loaded to the end or they are not inserted straight Eject the continuous forms and select cut sheet mode for the printer Load sheets to the end Paper with wrinkles folds or other defects Paper not specified for the printer Change paper Use paper types specified for the printer Unable to eject The LF FF button is pressed Press the LOAD EJECT button Improper continuous forms feed No line feed and no paper feed Paper distortion or jam Paper is off the Pin Tractors Reload paper correctly The adjust lever position does not match the paper type Forms are loaded with their left holes out of line with the right ones Set the adjust lever to the correct position Loa
67. ut sheets and continuous forms are actuated Troubleshooting gt 66 CLEANING YOUR PRINTER To keep your printer in good operating condition you are advised to clean it regularly WARNING Set the printer Power Switch to OFF and disconnect the power cable from the printer before cleaning the printer PRINTER EXTERIOR CAUTION Keep the Top Cover closed to avoid the possibility of detergent entering the printer Clean the exterior of the printer as required but at least every six months or 300 hours of operation whichever comes first gt Moisten a piece of cotton cloth with diluted neutral detergent and carefully wipe the printer exterior PRINTER INTERIOR As the print head becomes hot during printing allow it to cool before carrying out any cleaning inside the printer Do not use any flammable solvents for cleaning the printer to avoid any risk of fire or electric shock Clean the interior of the printer every 6 months or 300 hours of operation whichever comes first Using a soft cloth cotton swabs and a vacuum cleaner clean the interior of the printer as follows WHERE TO CLEAN WHAT TO CLEAN The carriage and the area around it Clean and remove paper waste dirt dust and ribbon The paper travel surface shreds CAUTION When you clean the interior of the printer with a vacuum cleaner do not attempt to clean any parts smaller than the suction nozzle Do not clean any interior wo
68. utton The printer will retract the continuous form automatically and set the printer in offline mode 3 Set the Paper Type Lever to Cut Sheet 4 To load cut sheet paper see Loading cut sheet paper on page 28 Cut sheet to continuous forms 1 Remove any cut sheet paper in the printer 2 Set the Paper Type Lever to Continuous form REAR or FRONT or PULL 3 To load continuous forms see Loading continuous forms on page 18 Paper handling gt 30 LOADING THE OPTIONAL CUT SHEET FEEDER N Due u 10 NOTE For installation instructions see Installing the Cut sheet feeder on page 73 Paper Set Lever Right Paper Guide Front Sheet Support Rear Sheet support Left Paper Guide Locking Lever num AGO NE Ensure the Paper Type Lever is set to Cut Sheet LD Open the Top Cover and adjust the Paper Thickness Lever to suit the paper See Setting the Paper Thickness lever on page 33 Remove the front sheet support 3 Place the paper set lever in the RESET position 1 Release the paper guides 2 5 by pushing the locking levers 6 downward Move the left paper guide to the position where you wish to set the left hand edge of the sheet making sure that this paper guide is not set to the right of the paper out sensor the grove in the platen Flex a paper stack not more than 170 sheets of 60 gsm paper Square the stack turn over and repeat the bending The stack of pa

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