Page 2 - Energy Star
Every effort has been made to ensure that the information inthis document is complete, accurate, and up-to-date. Okiassumes no responsibility for the results of errors beyond itscontrol. Oki also cannot guarantee that changes in softwareand equipment made by other manufacturers and referred toin thi...
Page 3 - Help Guide; English; Safety
i Help Guide English • Do not use your printer near water, or spill liquid of any kindinto it. • Be certain that your power source matches the rating listedon the back of the printer. If you are not sure, check with yourdealer or with your local power company. • Your printer has an earthed, 3-pin pl...
Page 4 - ii; The power cable or plug is frayed or damaged.
English ii ML3320/21 • Do not poke anything into the ventilation slots on the sidesof the printer; you could get a shock or cause a fire. • A s i d e f r o m t h e r o u t i n e m a i n t e n a n c e d e s c r i b e d i n t h i shandbook, do not try to service the printer yourself; openingthe cover ...
Page 5 - Contents
iii Help Guide English Contents Safety .................................................................................. i Maintenance ....................................................................... 1 Replacing the Ribbon Cartridge ........................................ 1 Clearing Paper J...
Page 6 - iv
English iv ML3320/21 3320hlp2.pm6 13/03/96, 16:00 4
Page 7 - Maintenance; Replacing the Ribbon Cartridge; Remove and discard the used ribbon cartridge.
English 1 Help Guide Maintenance Replacing the Ribbon Cartridge Note: For the best results, use genuine Oki ribbons. 1. Make sure the printer is turned OFF. 2. Centre the printhead ( ➊ ). Caution! The printhead may be HOT! M P ➊ 3. Remove and discard the used ribbon cartridge. 4. Unpack the new ribb...
Page 8 - ) in the direction of the arrow to take up; Clearing Paper Jams; Turn the printer OFF and use the platen knob to back the
2 ML3320/21 5. Install the new ribbon cartridge. 6. Turn the knob ( ➊ ) in the direction of the arrow to take up any ribbon slack. Clearing Paper Jams Rear-Feed Jams 1. Turn the printer OFF and use the platen knob to back the paper all the way out. 2. Open the access cover, and remove the pull-up ro...
Page 9 - M N
English 3 Help Guide 6. Turn the printer on. 7. Press FF/LOAD. 3. Remove any torn pieces of paper. 4. Replace the pull-up roller assembly, and close the access cover. 5. Reload paper. FF/LOAD M N ITEM Micro Feed Up 3320hlp3.pm6 13/03/96, 16:00 3
Page 10 - Correcting Repetitive Rear-Feed Jams; Fold some continuous-form paper over three times to
4 ML3320/21 Correcting Repetitive Rear-Feed Jams If the paper keeps jamming, you probably have bits of paperstuck in the paper path. 1. Perform steps 1 through 3 under “Rear-Feed Jams.” 2. Grasp the paper separator ( ➊ ), lift it slightly, pull back on it, then swing it forward. 3. Fold some continu...
Page 11 - Remove the paper pieces, and use the platen knob to
English 5 Help Guide 5. Remove the paper pieces, and use the platen knob to back the paper out. 6. Swing the paper separator over, reload regular paper, and lower the paper separator back into place. 7. Replace the pull-up roller assembly, and close the access cover. 8. Turn the printer on. 9. Press...
Page 13 - Cleaning the Housing; Note: Never use solvents or strong detergents on the cabi-
English 7 Help Guide Cleaning the Housing You should clean the printer every six months (or after about300 hours of operation). Note: Never use solvents or strong detergents on the cabi- net: they could damage the housing. 1. Turn the printer off, and remove any paper from the path. 2. O p e n t h e...
Page 14 - Troubleshooting; Problem: Nothing happens when I turn on the printer.; Solution: Check the power cable connection and power; Problem: The printer does not print when data is sent.; Solution: The ribbon shield is either loose or missing.
8 ML3320/21 Troubleshooting Problem: Nothing happens when I turn on the printer. Solution: Check the power cable connection and power outlet to your printer. If you are using a powerstrip, make sure it is turned on, and that the fusehas not blown nor the circuit breaker tripped. Problem: The printer...
Page 15 - 5 light is flashing.
English 9 Help Guide 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 “ClearingPaper Jams” earlier in this manual). Problem: The ALARM light is on and the Character Pitch 10 ...
Page 16 - Solution: The Operator Panel Function in the printer menu; Problem: Continuous-form paper is sticking to the paper; Solution: In cold dry weather, static charges can build up
10 ML3320/21 Problem: The Print Quality and Character Pitch keys on the front panel won’t work. Solution: The Operator Panel Function in the printer menu can be used to disable these buttons. If the printeris part of a customised system or if it is used by anumber of people, the system manager may h...
Page 17 - out of paper if no other lights are blinking; Using Your Printer; Print Mode: Indicator Lights; Flashes = printer in Print Suppress Mode
English 11 Help Guide ➎ ALARM ...................... Glows = error condition exists: ➤ out of paper if no other lights are blinking ➤ paper jam if 15 cpi light is also blinking ➤ paper lever is set to wrong position if 10 cpilight is also blinking. Blinks = error condition. Turn printer off, then on...
Page 18 - Print Mode: Control Panel Keys; from the path
12 ML3320/21 Print Mode: Control Panel Keys ➎ PRINT QUALITY ........... Selects the print quality. ➏ FF/LOAD ......................... Loads/ejects single sheet of paper; moves continuous-form paper toprint position. ➐ TEAR ................................ Moves continuous-form paper up for tear-off...
Page 19 - Selecting the Print Quality; Important! Front panel settings for print quality and
English 13 Help Guide Selecting the Print Quality Important! Front panel settings for print quality and character pitch can be overridden by softwarecommands. The lights will always reflect theprinter’s state. Press PRINT QUALITY to select: NLQ: Near Letter Quality• Highest quality, slowest speed • ...
Page 20 - Selecting the Character Pitch; Menu Mode: Control Panel
14 ML3320/21 QUIET PARK TEAR FF/LOAD LF SEL SEL POWER ALARM MENU GROUP EXIT ITEM SET PRINT MENU SHIFT TOF Micro Feed Up Micro Feed Down Selecting the Character Pitch P ress C H A R AC T E R P I T C H t o s e l e c t t h e w i d t h o fcharacters in characters per inch: 10 cpi• Recommended for standa...
Page 21 - Entering and Exiting the Menu Mode; Resetting the Menu; To reset the Menu to the standard settings:; Printing the Menu Settings; Make sure paper is loaded in the printer.; Changing the Menu Settings; Use the GROUP, ITEM and SET keys to make your; Important! If you turn the printer off without first exiting
English 15 Help Guide Entering and Exiting the Menu Mode To enter or exit the Menu Mode, hold SHIFT while pressingSEL. Resetting the Menu To reset the Menu to the standard settings: 1. Turn the printer off. 2. Press SEL + LF while turning the printer on. Printing the Menu Settings 1. Make sure paper...
Page 22 - Summary of Menu Settings; * Appears only when the MICROLINE Standard emulation is selected.
16 ML3320/21 Summary of Menu Settings The table below shows the items which may appear in the menu. Settings which are engaged at the factory (defaults) are set in bolditalic. Some groups or entries will only appear when a specific emulation is engaged, as noted. Group Item Setting Printer Control E...
Page 25 - Explanations of Menu Items; Character Set. Choose IBM Set I or IBM Set II.
English 19 Help Guide Explanations of Menu Items 7 or 8 Bits Data Word (ML). If your computer system usesseven bits to make up each unit of data, change this setting to 7. 7 or 8 Bit Graphics. Choose the graphics your system uses:7 or 8 dots in each column printed. Auto CR (IBM). If you want the pri...
Page 27 - Using the Printer's Features; Tear Feature; TEAR; Note: The Tear Feature can not be used when the optional; Forms Tear-Off Feature; Important! Never engage Forms Tear-Off when printing
English 21 Help Guide Skip Over Perforation. Change to Yes if you want the printerto go to the next page when it comes within 1" (25 mm) ofthe bottom of the page. Keep it set to No if your software hasits own page formatting controls. Slashed Letter O. If set to Yes, capital and lower case slash...
Page 28 - Note: Some programs pause occasionally while sending; Paper Park Feature; PARK
22 ML3320/21 This feature is normally turned off. To activate it: 1. Press SHIFT ( ➋ ) + SEL ( ➊ ). 2. Press GROUP ( ➌ ) until one of the following lines appears, depending on which paper feed you are using: REAR FEED Form Tear-Off OFF BOTTOM FEED Form Tear-OFF OFF 3. Press SET ( ➍ ) until the time ...
Page 29 - Specifications
English 23 Help Guide Specifications Print Method Impact dot matrix Printhead 9 pins, 0.34mm diameter, thermal protection Print Speed Mode Characters per second Super Speed Draft (SSD) 435 cps High Speed Draft (HSD) 387 cps Utility (UTL) 290 cps Near Letter Quality (NLQ) 72.5 cps Characters per Line...
Page 30 - Reliability; Parameter; Paper Width; Paper Type Feed
24 ML3320/21 Reliability Parameter Reliability Mean Time Between Failures 10,000 hours at 25% duty (MTBF) cycle and 35% page density Mean Time to Repair 15 minutes (MTTR) Printhead Life 200 million charactersaverage in 10 cpi draft modeat 25% duty and 35% pagedensity Ribbon Life (on average, 3 milli...
Page 31 - Operating Temperature; Electrical Requirements
English 25 Help Guide Paper Specifications (continued) Paper Type Feed Weight Width Range Envelopes, Top Only 24 lb. max. 165.1 - 241.3mm single feed (90 g/m²) (6.5" - 9.5") Envelopes, Bottom 24 lb. max. 165.1 - 241.3mm continuous feed, Only (90 g/m²) (6.5" - 9.5") non-overlap Card s...
Page 32 - Index; Continuous-form paper
26 ML3320/21 Index Continuous-form paper jams, clearing .............. 2-4specifications ................ 24 Control panel ................ 11-14 D Defaults, menu ............. 16-18 resetting ........................ 15 Dimensions ........................ 25Draft mode menu setting .. 19 E Electrica...
Page 33 - Rear feed paper
English 27 Help Guide Paper park feature ............. 22Pin 18 menu setting ........... 20Pitch menu setting ............. 20Print DEL code menu setting ............................... 20 Print mode menu setting ... 20Print quality ....................... 13Print registration menu setting ............
Page 34 - Oki Systems Company
28 ML3320/21 Oki Systems Company Oki Systems (UK) Limited550 Dundee RoadSlough Trading EstateSloughBerks. SL1 4LE Tel: 01753-819819Fax: 01753-819899 3320hlp3.pm6 13/03/96, 16:01 28