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MAINTENANCE > 56

3.

Open the access cover (1) and remove the pull-up roller 
assembly (2). Remove any torn paper.

4.

Lift the sheet guide (1) and reload paper. Make sure you lock 
the tractor covers.

5.

Lower the sheet guide, then install the pull-up roller assembly 
and close the access cover.

6.

Turn the printer ON and press

 

FF/LOAD

.

1

2

Summary of Contents for ML5521

Page 1: ...ML5520 21 user s guide ...

Page 2: ... herein The most up to date drivers and manuals are available from the Oki Europe website http www okieurope com Copyright 2003 All rights reserved Energy Star is a trademark of the United States Environmental Protection Agency Oki and Microline are registered trademarks of Oki Electric Industry Company Ltd Hewlett Packard HP and LaserJet are registered trademarks of Hewlett Packard Company Micros...

Page 3: ...Form TOF 16 Temporarily Changing the Top of Form 18 Resetting Top of Form to the Factory Default 18 Forms Tear Off Feature 18 Potential issues with software packages 19 Changing the Forms Tear Off Setting 20 Manual Forms Tear Off 20 Paper Park 21 Changing Paper Paths 21 Continuous Forms to Single Sheets 21 Single Sheets to Continuous Forms 22 Printhead Gap 24 Print Quality 25 Character Pitch 26 Ep...

Page 4: ... Sheet Paper Jams 60 Cleaning the Housing 61 Troubleshooting 63 General Information 63 Parts and Accessories 68 Printer Control Codes 70 IBM Proprinter III Commands 70 Epson FX Commands 72 Oki Microline Standard Commands 74 Specifications 76 Setting up your Printer 80 Location 80 Unpacking 80 Installing the Ribbon Cartridge 83 Ribbon Cartridge Handling 83 Power Connection 85 Computer Connections 8...

Page 5: ...n text which may help you to use and understand the product CAUTION A caution appears in this manual like this A caution provides additional information which if ignored may result in equipment malfunction or damage WARNING A warning appears in this manual like this A warning provides additional information which if ignored may result in a risk of personal injury ...

Page 6: ...r 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 ...

Page 7: ...er 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 Using your Printer Turning the Platen Knob 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 will misalign NOTE The Forms Tear Off and the Top of Form settings interact For more informati...

Page 8: ... 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 Using your Printer ...

Page 9: ...ve 2 Select your Language 3 When the Menu Installer window appears click the Driver Installation button 4 Follow the on screen instructions INSTALLING THE DRIVER 1 When the Add Printer window appears click Next 2 Select the directory on the CD where the drivers are located on the Oki CD they are situated in X Drivers WinVer CodePage where X is CD drive letter NOTE If the CD does not AutoPlay click...

Page 10: ... II l IBM Proprinter Epson FX l Epson FX 286e l Epson FX 850 1050 l Epson FX 800 1000 INTERFACES GENERAL Your printer is equipped with a selection of data interfaces Under no circumstances attempt to use both parallel and USB ports simultaneously 1 Parallel For direct connection to a PC This port requires a bi directional IEEE 1284 compliant parallel cable 2 USB For connection to a PC running Wind...

Page 11: ...n each printer CONNECTING THE USB CABLE Due to the number of possible variants of operating systems it is not possible to describe every combination Terminology may varybetween Windows operatingsystems andsome knowledge is assumed If you are unsure how to proceed you should consult your computer documentation or system manager for details This example uses Windows 2000 Professional 1 Ensure the pr...

Page 12: ...t computer The paper size can be altered by using the drop down arrow and selecting an alternative size 7 If the printer had formerly been used as a parallel or serial device and there is no output from the printer once a USB cable has been connected check to see that the correct port has been selected This information can also be found in the Properties folder but under the Ports tab Amend as nec...

Page 13: ...on a label fixed to the back of the printer COMPONENTS TOP FEED SINGLE SHEETS 1 Sheet Guide 5 Control Panel 2 Paper Lever 6 Acoustic Cover 3 ON OFF Switch 7 Access Cover 4 Platen Knob 1 Paper Guides 5 Platen Knob 2 Sheet Guide 6 Control Panel 3 Paper Lever 7 Acoustic Cover 4 ON OFF Switch 1 2 3 4 5 6 7 1 2 3 4 5 6 7 ...

Page 14: ...gle sheet printing the paper lever must be in the middle position CAUTION If you turn the platen knob when the printer is not at Top of Form the TOF will misalign Always feed the paper to TOF before turning the platen knob NOTE Your software may print the first line of print above or below where TOF is set You may need to adjust the TOF to meet your software s requirements The Top of Form and Form...

Page 15: ...er 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 Make sure paper is loaded and wait 2 seconds 2 Press TEAR 3 l If the paper moves up Forms Tear Off is OFF l If the paper mo...

Page 16: ...Micro Feed Down 3 to set the TOF higher the paper moves down l Press FF LOAD Micro Feed Up 4 to set the TOF lower the paper moves up When you begin pressing the Micro Feed key the printhead will move to the right 5 Press SEL MENU 1 to place the printer back on line To reset the Top of Form to the factory default see Resetting Top of Form to the Factory Default later in this chapter CAUTION Do not ...

Page 17: ...nt TOF and the SEL light is illuminated 4 If the printer is ON line press SEL MENU 1 to take the printer OFF line The SEL light goes out 5 Hold down SHIFT 2 then l Press LF Micro Feed Down 3 to set the TOF higher the paper moves down l Press FF LOAD Micro Feed Up 4 to set the TOF lower the paper moves up When you begin pressing the Micro Feed key the printhead will move to the right 6 Press SEL ME...

Page 18: ...E 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 Changing the Forms Tear Off Settings 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 pu...

Page 19: ...ckage 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 Changing the Forms Tear off Settings NOTE You can also move the pa...

Page 20: ...y 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 MANUAL FORMS TEAR OFF If you don t wish to engage the Forms Tear Off feature you can advance l rear feed continuous forms loaded on the built in ...

Page 21: ...ets 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 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 3 Pivot the wire feed guide into the sheet guide CAUTION Never park labels 1 ...

Page 22: ...n marked TOP 5 Adjust the paper guides 1 for the size of paper you are using then place a sheet of paper in the sheet guide SINGLE SHEETS TO CONTINUOUS FORMS 1 Press FF LOAD to remove the single sheet paper 2 Lower the sheet guide into the continuous forms position 1 1 ...

Page 23: ...YOUR PRINTER 23 3 Swing the wire feed guide over onto the pull up roller 4 Move the paper lever to the appropriate position l Rear feed l Bottom feed l If necessary load continuous form paper 5 Press FF LOAD ...

Page 24: ...he recommended setting from the table CAUTION Make sure the printer is turned off before you open the access cover Setting Media 1 Standard paper 2 2 part form with carbon 3 3 part form with carbon 4 4 part form with carbon 5 Envelopes or extra thick paper NOTE When the head gap is set to 2 3 4 or 5 the printer automatically slows down for better print quality with multipart forms 1 ...

Page 25: ...High Speed Draft HSD l Lower quality higher speed 507 cps Gothic typeface only Super Speed Draft SSD l Lowest quality highest speed 570 cps Gothic typeface only Near Letter Quality NLQ l Highest quality slowest speed 95 cps Courier or Gothic NOTE Front panel settings for print quality and character pitch are normally overridden by software commands 1 ...

Page 26: ...NS Set the character pitch by pressing CHARACTER PITCH 1 until the light beneath the desired setting is illuminated l 10 cpi 12 cpi 15 cpi 17 cpi 20 cpi or Proportional MICROLINE Emulation In the MICROLINE emulation the Character Pitch choices are l 10 cpi 12 cpi 15 cpi 17 cpi 20 cpi Proportional or non proportional To select Proportional press the CHARACTER PITCH key until both the cpi value and ...

Page 27: ...Press and hold SHIFT 2 then press SEL 1 2 Press LF 3 The following line will print Printer Control Emulation Mode IBM PPR 3 Press TEAR 4 repeatedly until the emulation you wish to select prints in the right hand column 4 Press and hold SHIFT 2 then press SEL 1 to save your setting and exit the Menu Mode NOTE Pressing SHIFT and RESET reinitialises the printer but does not affect any menu settings a...

Page 28: ...the previous Group ITEM Key Prints the next Item in the Group With the SHIFT key prints the previous Item in the Group 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 MENU Light ON when the printer is in the Menu Mode NOTE Ple...

Page 29: ...the settings for all menu items regardless of the emulation selected or the accessories installed Make sure paper is loaded in the printer 1 Press and hold SHIFT then press SEL to enter the Menu Mode 2 Press and hold SHIFT then press PRINT QUALITY CHANGING THE MENU 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 3 Press G...

Page 30: ...at the factory defaults are set in bold italic Some groups or entries will only appear when a specific emulation is engaged as noted NOTE If you turn off the printer without first exiting the Menu Mode the changes you have made will be lost Group Item Settings Printer Control Emulation Mode IBM PPR Epson FX ML Font Print Mode DRAFT Mode Pitch Proportional Spacing Style Size NLQ Courier NLQ Gothic ...

Page 31: ...I ECMA 94 Hungarian CWI Windows Greek Windows East Europe Windows Cyrillic East Europe Latin II 852 Cyrillic I 855 Cyrillic II 866 Kamenicky MJK ISO Latin 2 Turkey_857 Windows Turkey Ukrainian Bulgarian ISO Latin 6 8859 10 Windows Baltic Baltic_774 KBL Lithuanian Cyrillic Latvian Roman 8 Icelandic 861 Multilingual 858 ISO 8859 15 Greek_737 Rear Feed Line Spacing Form Tear Off Skip Over Perforation...

Page 32: ...entring Position CSF Type ESC SI Pitch Select Language Set Power Saving Power Save Time When MICROLINE emulation selected When IBM emulation selected When Cut Sheet Feeder fitted Bi directional Uni directional 8 7 1 Line 32K 64K 128K No Yes 0 range to 0 25 mm 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 righ...

Page 33: ...Busy Time None Odd Even 8 Bits 7 Bits Ready Busy X ON X OFF No Yes SSD SSD DTR RTS 19200 bps 9600 bps 4800 bps 2400 1200 600 300 bps Valid Invalid Ready On Power Up Ready On Select 200 ms 1 sec CSF Bin 1 Line Spacing Bottom Margin Page Width Wide model Page Length 6 LPI 8 LPI Valid Invalid 8 13 6 11 11 2 3 12 14 17 5 3 5 4 5 5 6 7 8 8 5 CSF Bin 2 When Cut Sheet Feeder installed Line Spacing Bottom...

Page 34: ...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 you...

Page 35: ... factory default is selected you can choose which line your system monitors for a busy signal l SSD 9V select SSD l SSD 9V select SSD l DTR 9V select DTR l RTS 9V select RTS Busy Time Default 200 ms Appears only when the optional Serial Interface is installed Sets the length of the busy signal when the Ready Busy protocol factory default is engaged Centering Position Default DEFAULT Used to limit ...

Page 36: ...JK ISO Latin 2 Turkey_857 Windows Turkey Ukrainian Bulgarian ISO Latin 6 8859 10 Windows Baltic Baltic_774 KBL Lithuanian Cyrillic Latvian Roman 8 Icelandic 861 Multilingual 858 ISO 8859 15 Greek_737 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 sett...

Page 37: ...C SI command is received Form Tear Off Default Off Choose 500 ms 1 sec or 2 sec to turn the Form Tear Off feature ON and to set the time interval for the printer to wait before advancing the paper Graphics Default Bi directional Change to uni directional graphics for better registration but slower printing With this set for bi directional you can optimise the registration using the Print Registrat...

Page 38: ...ed from the control panel when several people are using the printer Page Length Default 11 2 3 or 1 2 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 wish to use the Paper End sensor to detect the actual paper end use Actual Page Length setting If you use ...

Page 39: ...e 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 Print Mode Default Utility Choose the quality and typeface of printing Switch to NLQ Courier o...

Page 40: ... uses Receive Buffer Size Default 64K Selects the amount of memory devoted to holding received data Choosing 1 Line will tie up your computer while printing but if you abort the print job the printer will stop much sooner Reset Inhibit Default No Select Yes if you wish the printer to ignore the reset command sent by software This prevents your software from changing the settings you make through t...

Page 41: ...e 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...

Page 42: ...lled in your printer Look for the printer model number on the ribbon package Ribbon Cartridge Handling l Leave unused ribbon cartridges in their packages until needed l Careful the ribbon ink may cause permanent stains l Ribbon ink on skin or clothing can usually be removed with soap and water Make sure the printer is turned OFF 1 Open the access cover and center the printhead ...

Page 43: ... ribbon 4 Turn the take up knob 1 in the direction of the arrow to take up any ribbon slack 5 Close the access cover and turn the printer back on 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 WARNING The printhead may be HOT 1 1...

Page 44: ...ed paper 1 Lock Lever 2 Upper Tractor Cover 3 Pins Loading Rear Feed Paper from the Back of the Printer These instructions assume you have ready access to the back of the printer If you do not go to Loading Rear Feed Paper from the Front of the Printer Make sure the paper lever is forward position marked REAR 1 2 3 ...

Page 45: ... slightly then slide it back 3 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 1 1 2 3 ...

Page 46: ...tor as viewed from the back of the printer to the reference mark 2 matching the width of the paper you are loading Then close the lock lever on the right tractor 6 Open the tractor covers NOTE The movement of the right tractor is limited to ensure that the paper covers the paper sensor 1 1 1 5520 2 15 16 10 9 5 5521 ...

Page 47: ...mber of paper holes engaged on either pin the same If you don t the paper will skew and jam 8 Close the right tractor cover 9 Adjust the left tractor until the holes in the paper are centred 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 ...

Page 48: ... the marks align 11 Place the wire guide in the sheet guide on the pull up roller assembly 12 Press FF LOAD NOTE The factory default setting for the Top of Form where the printing should begin is 1 down from the top of the page To change the setting see Top of Form TOF in the previous chapter ...

Page 49: ...e that you do not have ready access to the back of the printer If you do go back to Loading Rear Feed Paper from the Rear of the Printer earlier in this chapter 1 Lock Lever 2 Upper Tractor Cover 3 Pins Make sure the paper lever is forward position marked REAR 1 Open the access cover 1 1 2 3 1 ...

Page 50: ... push back on the lever to lock it in place then move the right tractor to fit the width of the paper You will find reference marks 1 in illustration below on the printer for the two most common paper sizes 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 1 5520 5521 10 9 5 16 15 ...

Page 51: ...6 Adjust the position of the right tractor to centre the holes in the paper on the pins Then close the right tractor cover and push back the lock lever Do not stretch the paper If the paper is too loose or too tight it can cause jams NOTE You must keep the number of paper holes engaged on either pin the same If you don t the paper will skew and jam ...

Page 52: ...MAINTENANCE 52 7 Reinstall the sheet feeder ...

Page 53: ...e sheet guide on the pull up roller assembly 9 Press FF LOAD NOTE The factory default setting for the Top of Form where the printing should begin is 1 down from the top of the page To change the setting see Top of Form TOF in the previous Chapter ...

Page 54: ...remove it before loading single sheets Make sure the printer is on and deselected SEL light off 1 Move the paper lever 1 to the centre position marked TOP 2 Open the acoustic cover 1 and raise the sheet guide 2 to the single sheet position Pivot the wire feed guide 3 up into the sheet guide 1 1 2 3 ...

Page 55: ...printer NOTES 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 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 the previous chapter...

Page 56: ...l up roller assembly 2 Remove any torn paper 4 Lift the sheet guide 1 and reload paper Make sure you lock the tractor covers 5 Lower the sheet guide then install the pull up roller assembly and close the access cover 6 Turn the printer ON and press FF LOAD 1 2 ...

Page 57: ...ned 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 Fragments of Paper 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 OF...

Page 58: ... any torn pieces of paper 5 Fold some continuous form paper over three times to make a page four sheets thick Then load it on the tractors and close and lock the covers 6 Use the platen knob to draw the quadruple thick page around the platen This brings out jammed pieces of paper 7 Remove the paper pieces Then use the platen knob to back the paper out 1 2 3 4 3 ...

Page 59: ...INTENANCE 59 8 Load standard paper close and lock the tractor covers 9 Install the sheet guide then install the pull up roller assembly and close the access cover 10 Turn the printer on and press FF LOAD ...

Page 60: ...off the printer 2 Use the platen knob to back the paper out 3 Open the access cover 1 and remove the pull up roller assembly 2 4 Remove any torn pieces from around the carriage 5 Reinstall the pull up roller assembly and close the access cover 1 2 ...

Page 61: ...ck the paper out of the printer 3 Open the access cover 1 and remove the pull up roller assembly 2 4 Use a clean dry cloth to dust around the carriage shaft and platen Remove any loose bits of paper CAUTION Never use strong solvents or strong detergents on the cabinet they could damage the housing CAUTION Make sure the printer is turned off before you open the access cover 1 2 ...

Page 62: ...MAINTENANCE 62 5 Reinstall the pull up roller assembly and close the access cover ...

Page 63: ... paper properly installed l Is the ribbon properly installed l Is an Oki ribbon being used l Is the printhead gap correctly set l Are the correct printer drivers being used for the printer Problem My word processor files do not print the way I have the menu and front panel set Solution Remember l Settings in your software application can override settings in your printer driver NOTE Settings in yo...

Page 64: ...blem 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 3 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 has...

Page 65: ...at 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 Centring 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 an...

Page 66: ...er Pitch 10 light is flashing Solution This indicates that the paper lever is set at the wrong position for the paper you are trying to use Move it to the proper setting Problem The ALARM light is ON and the Character Pitch 15 light is flashing Solution This indicates a paper jam Press the SEL key and correct the paper jam situation See Clearing Paper Jams in Chapter 3 Problem The printer needs pa...

Page 67: ...r 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 ...

Page 68: ...nsult the dealer where you purchased your printer l Locate an Authorised Oki Reseller by visiting your local Oki web site Links to all countries are provided on http www okieurope com Item Part number ML5520 Part number ML5521 Ribbon Cartridge 1 01126301 01126301 Platen Knob 2 2PP4025 2871P021 2PP4025 2871P021 Power Cord 3 Euro UK YS4011 1272P001 YS4011 1273P001 Printhead 4 41923901 41923901 Acces...

Page 69: ...ber ML5521 Pull Tractor Top Mount 1 09002365 09002369 Push Tractor Bottom Mount 2 09002366 09002370 Roll Paper Stand 3 09002332 N A Cut Sheet Feeder 4 Single Bin Dual Bin 09000691 09000692 09000695 09000696 Serial Interface RS232C 5 09002351 09002351 1 2 3 4 5 ...

Page 70: ...l Backspace BS 8 Carriage Return CR 13 Character Pitch Select 10 cpi Select 12 cpi Select 15 cpi Select condensed Print DC2 ESC ESC G ESC SI or SI 18 27 58 27 103 27 15 OR 15 Character Sets IBM Set I IBM Set II Publisher Slashed Zero Unslashed Zero ESC 7 ESC 6 ESC Z ESC ESC A 27 55 27 54 27 33 90 27 33 64 27 33 65 Double Width ON Double Width OFF ESC W 1 ESC W 0 27 87 49 27 87 48 Emphasised Printi...

Page 71: ... _ 0 27 95 49 27 95 48 Paper Out Sensor OFF Paper Out Sensor ON ESC 8 ESC 9 27 56 27 57 Print Quality Select HSD Print Suppress Mode ON ML5520 ML5521 Print Suppress Mode Off ESC 0 ESC Q ETX ESC Q SYN DC1 27 35 48 27 81 3 27 81 22 17 Proportional Spacing ON Proportional Spacing OFF ESC P 1 ESC P 0 27 80 49 27 80 48 Reset Clear Print Buffer CAN 24 Software I Prime ESC NUL 27 125 0 Stop Printing ESC ...

Page 72: ...inting OFF ESC E ESC F 27 69 27 70 Enhanced Printing ON Enhanced Printing OFF ESC G ESC H 27 71 27 72 Epson Set 1 Select Epson Set 2 Select ESC t 0 ESC t 1 27 116 48 27 116 48 Italics Printing ON Italics Printing OFF ESC 4 ESC 5 27 52 27 53 Form Feed FF 12 Form Length n inches n 1 to 22 n lines n 1 to 127 ESC C NUL n ESC C n 27 67 0 n 27 67 n Horizontal Tab Execute HT 9 Justification Left Center R...

Page 73: ...5 49 27 115 48 Print Speed Half Speed ON Half Speed OFF ESC s 1 ESC s 0 27 115 49 27 115 48 Print Suppress Mode ON Print Suppress Mode OFF DC3 DC1 19 17 Proportional Spacing ON Proportional Spacing OFF ESC p 1 ESC p 0 27 112 49 27 112 48 Reset Printer Clear Buffer Initialise Clear Print Buffer ESC CAN 27 64 24 Skip Over Perforation Cancel ESC O 27 79 Software I Prime ESC NUL 27 125 0 Subscript ON ...

Page 74: ...Height OFF ESC US 1 ESC US 0 27 31 49 27 31 48 Double Width Printing US 31 Emphasised Printing ON Emphasised Printing OFF ESC T ESC I 27 84 27 73 Enhanced Printing ON Enhanced Printing OFF ESC H ESC I 27 71 27 73 Form Feed FF 12 Horizontal Tab Execute HT 9 Italics ON Italics OFF ESC ESC 27 33 47 27 33 42 Line Feed Commands w Carriage Return wo Carriage Return n 144 n 1 to 127 Reverse LF ESC DC2 ES...

Page 75: ...Suppress OFF DC3 DC1 19 17 Proportional Printing ON OFF ESC Y ESCZ 27 89 27 90 Reset Clear Print Buffer CAN 24 Shift In Shift Out SI SO 15 14 Software I Prime ESC NUL 27 125 0 Subscript Printing ON Subscript Printing OFF Superscript Printing ON Superscript Printing OFF ESC L ESC M ESC J ESC K 27 76 27 77 27 74 27 75 Underline Printing ON Underline Printing OFF ESC C ESC D 27 67 27 68 Uni Direction...

Page 76: ...de at 25 duty and 35 page density 20 000 hours at 25 duty cycle and 35 page density 15 minutes Emulations co resident IBM Proprinter III Epson FX Oki MICROLINE Standard Print Speed Super Speed Draft High Speed Draft HSD Utility Near Letter Quality NLQ Speed 570 cps 507 cps 380 cps 95 cps cps characters per second Characters per Line cpl Setting 10 cpi 12 cpi 15 cpi 17 1 cpi 20 cpi ML5520 ML5521 80...

Page 77: ... Super Speed Draft Courier Gothic Gothic Gothic Gothic Bar Codes Code 39 UPC A UPC E EAN 8 EAN 13 Interleaved 2 of 5 Code 128 Postnet Paper Thickness Tractor Feed Rear Feed Bottom Feed requires optional push or pull tractor 0 014 0 36 mm max 0 017 0 44 mm max Item Specification ...

Page 78: ... to 90 g m2 ML5520 7 2 to 8 5 183 to 216 mm ML5521 7 2 to 14 3 183 to 363 2 mm Rear Bottom 12 to 24 lb US Bond 45 to 90 g m2 ML5520 3 to 10 76 2 to 254 mm ML5521 3 to 16 76 2 to 406 4 mm Rear Bottom 9 to 11 lb ML5520 3 to 10 76 2 to 254 mm ML5521 3 to 16 76 2 to 406 4 mm Rear Bottom 10 to 12 lb paper 9 lb carbon ML5520 3 to 10 76 2 to 254 mm ML5521 3 to 16 76 2 to 406 4 mm Bottom only Not applicab...

Page 79: ... C 20 to 80 RH 5 to 95 RH Electrical Requirements 230 ac 15 14 50 or 60 Hz 2 58W typical 10W idle Physical Specifications ML5520 Size WxDxH Weight ML5521 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 lbs 9 6 kg Height dimensions do not include the acoustic cover Item Specification ...

Page 80: ...laten knob and the various paper feed paths l Make sure a suitable grounded power outlet is available nearby UNPACKING l If any items are missing contact your dealer immediately l Keep your packing materials and carton in case you ever need to ship or transport the printer l Interface cable and paper are sold separately 1 Printer 2 Ribbon Cartridge 3 Power Cord 1 2 3 ...

Page 81: ...king tape then grasp the tabs 1 at either end of the access cover and pivot it towards the front of the printer as far as it will go 2 Remove the printhead shipping restraint 3 Remove the shipping restraint from the pull up roller assembly 1 1 1 ...

Page 82: ... 1 to lift and remove the sheet guide then remove the shipping restraint 5 Reinstall the sheet guide insert the clips on either side of the separator into the notches marked with a triangle then press down to secure the separator in place 1 1 ...

Page 83: ...bon ink may cause permanent stains l Ribbon ink on skin or clothing can usually be removed with soap and water Make sure the printer is turned OFF 1 Open the access cover and center the printhead 1 CAUTION Make sure you have the correct replacement ribbon for your printer The wrong ribbon will not print when installed in your printer WARNING The printhead may be HOT ...

Page 84: ...on cartridge and install it on the printhead 3 Turn the take up knob 1 in the direction of the molded in arrow to take up any ribbon slack 4 Close the access cover and turn the printer ON CAUTION Do not remove the ribbon shield 1 from the ribbon 1 1 ...

Page 85: ...TTING UP YOUR PRINTER 85 POWER CONNECTION Make sure both the printer and the computer are switched OFF 1 Plug the power cord into the back of the printer then into a grounded outlet 2 Turn on the printer ...

Page 86: ...uter are both turned OFF 1 Attach a suitable bi directional cable to the parallel connector on the back of the printer Then attach and secure the cable to your computer 2 Turn the printer and computer back ON USB SPECIFICATION 1 1 COMPLIANT l Requires a USB 1 1 cable maximum length 19 7 ft 5 m not supplied l Printer has a USB series B receptacle Make sure the printer and computer are both turned O...

Page 87: ...printer Then attach the cable to your computer 4 Turn the computer and printer back on LOADING PAPER For instructions on loading paper see Loading Paper in the chapter on Maintenance TESTING THE PRINTER l Font Sample Test l Rolling ASCII Test l Hexadecimal Dump Mode ...

Page 88: ...rd to the printer The top of the printout shows the Printer Model Emulation Country Code Interface and Firmware Revision Level Make sure paper is loaded 1 Turn the printer OFF 2 Press and hold the LF key while turning the printer back ON The printer will print a page of font samples and the test ends ...

Page 89: ...rn the printer OFF 2 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 continuously 3 Press SEL to end the test CAUTION Wide carriage Model ML5521 If you are using 8 5 inch paper to run the tests make sure the paper width se...

Page 90: ... of BASIC code LPRINT CHR 27 0 CHR 30 THIS IS AN EXAMPLE OF A HEXADECIMAL DUMP would print like this To engage the Hexadecimal Dump Mode Make sure paper is loaded 1 Turn the printer OFF 2 Hold the SEL and FF LOAD keys for several seconds while turning on the printer To exit the Hexadecimal Dump Mode 1 Press the SEL key or Turn the printer off then on again NOTE In the ASCII format all non printabl...

Page 91: ...nnections 86 E Electrical Requirements 79 Emulations 27 Mode 37 Envelopes 78 Environmental Requirements 79 F Font Sample Test 88 Fonts Embedded Printer Commands 65 Resident 77 Selecting 39 Forms Tear Off 37 Top of Form 19 G Graphics Printing 32 37 GROUP Menu Mode 28 H Height Double Height Printing 41 Hexadecimal Dump Mode 90 High Speed Draft 77 Humidity 79 I IBM Character Set 36 Initialization str...

Page 92: ... 1284 86 Parallel Interface 33 I PRIME Signal 63 Perforation skip over 31 41 Pitch character 39 Postnet 77 Power Connection 85 Print Method 76 Print Mode 39 Print Registration 32 40 Print Size 76 Print Speed 6 76 Print Suppress 32 40 Printhead 76 Proportional Spacing 40 R Rear Feed Form Tear Off 31 32 Line Spacing 31 Skip Over Perforation 31 Receive Buffer Size 76 Reliability 76 Ribbon Shield 43 6...

Page 93: ...s Tear Off 7 19 Paper Shield 7 14 Typefaces Selecting 39 U Uni directional printing graphics 32 Unpacking 80 USB Specification 1 1 Compliant 86 Utility Front Panel Light 77 Print Speeds 6 Utility Mode Print Quality 25 W Wait Time 32 Width Character 39 Double width printing 41 Page Bottom Feed 31 Rear Feed 31 Top Feed 32 Paper Setting in the Printer Menu 32 ...

Page 94: ... 108 8551 Japan Tel 81 3 5445 6158 Fax 81 3 5445 6189 http www okidata co jp Oki Data Singapore Pte Ltd 78 Shenton Way 09 01 Singapore 079120 Tel 65 221 3722 Fax 65 421 1688 http www okidata com sg Oki Systems Thailand Ltd 956 Udomvidhya Building 6th Floor Rama IV Rd Bangkok 10500 Thailand Tel 662 636 2535 Fax 662 636 2536 http www okisysthai com Oki Hong Kong Limited Suite 1909 Tower3 China Hong ...

Page 95: ...Central House Balfour Road Hounslow TW3 1HY United Kingdom tel 44 0 20 8219 2190 Fax 44 0 20 8219 2199 ML5520 21 07044201 Iss 02 ...

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