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Microline 420/421 & 490/491

1.

2.

1. Plug power cord into printer. Plug other end into a grounded outlet. 
2. Turn the printer on. POWER light (1) comes on and ALARM light (2) comes on because paper 

is not loaded.

Summary of Contents for ML420 Series

Page 1: ......

Page 2: ...2 Microline 420 421 490 491 Check the contents 1 Printer 2 Ribbon cartridge 3 Power Cable 4 CD with drivers and on line User Guide 5 Setup Guide...

Page 3: ...Microline 420 421 490 491 3 1 2 1 Grasp tabs 1 and open access cover 2 2 Remove printhead shipping retainer...

Page 4: ...4 Microline 420 421 490 491 1 2 3 1 Grasp tabs 1 and remove the paper separator 2 Remove protective material Replace the paper separator 3 Remove protective material from the pull up roller assembly 2...

Page 5: ...Microline 420 421 490 491 5 1 With access cover open grasp printhead 1 and slide to center 2 Remove ribbon cartridge from packaging Important Leave the clear plastic ribbon shield 2 on the cartridge...

Page 6: ...6 Microline 420 421 490 491 1 Hold ribbon cartridge as shown with knob 1 up and ribbon shield 2 facing platen 3 2 Fit grooves on sides at back end of cartridge over pins on ribbon plate 4...

Page 7: ...Microline 420 421 490 491 7 1 Lower front of cartridge over printhead 1 until it snaps into place 2 Turn knob 2 clockwise to take up ribbon slack...

Page 8: ...Microline 420 421 490 491 Set the headgap lever 1 for the number of sheets in the forms you are using from 1 4 Use setting 5 for envelopes or extra thick paper Adjust setting for the best print qualit...

Page 9: ...90 491 9 1 Make sure both printer and computer are OFF 2 Plug interface cable into printer port Plug other end into computer Parallel cable must be shielded no longer than 6 ft 1 8m and IEEE 1284 comp...

Page 10: ...0 Microline 420 421 490 491 1 2 1 Plug power cord into printer Plug other end into a grounded outlet 2 Turn the printer on POWER light 1 comes on and ALARM light 2 comes on because paper is not loaded...

Page 11: ...Microline 420 421 490 491 11 1 2 3 1 Move the paper lever 1 to REAR position 2 Grasp the paper separator 2 Lift slightly then slide back 3 Pivot forward and rest gently against the roller assembly...

Page 12: ...is from rear Locate tractors Pull up on tractor lock levers 1 to release tractors 2 Position right hand tractor for width of paper See paper size reference marks on printer 3 Open the tractor covers...

Page 13: ...Microline 420 421 490 491 13 Pull paper and place first two holes on each side over tractor pins 1 Equal number of paper holes must be engaged on each tractor to ensure proper paper feed...

Page 14: ...14 Microline 420 421 490 491 1 Close right tractor cover 1 2 Push down on lock lever 2 to lock tractor...

Page 15: ...20 421 490 491 15 1 Position left tractor so that paper holes are centered on pins and paper is not stretched or too loose which could cause jams Close tractor cover 1 2 Push down on lock lever 2 to l...

Page 16: ...16 Microline 420 421 490 491 1 Replace the paper separator Make sure the marks 1 are aligned 2 Swing over the wire paper feed guide 2 to rest on roller assembly...

Page 17: ...Microline 420 421 490 491 17 Push FF LOAD button Paper feeds into printer and ALARM light goes out For instructions on loading single sheet paper see the User s Guide on the CD...

Page 18: ...s Tear Off setting Forms Tear Off automatically moves the paper from the initial printing position to the tear off position allowing a printed page to be torn off without wasting paper or adjusting th...

Page 19: ...r CD ROM drive The CD will AutoPlay If AutoPlay is set off click Start Run Browse Browse to your CD ROM drive and double click Install exe then click OK 3 Select your printer model 4 License Agreement...

Page 20: ...tion and click Browse 10 Browse to your CD ROM drive Drivers Printer Model Operating System Language Click OK 11 Click Next 12 Follow the on screen instructions to finish the installation Windows 2000...

Page 21: ...e Wizard appears Click Automatic Search Click Next 6 Follow the on screen instructions to finish the installation Windows XP Before you start the install be sure the USB cable is connected to your pri...

Page 22: ...ick Start Run Browse Browse to your CD ROM drive and double click Install exe then click OK 2 Select your printer model 3 The Menu Installer appears Click the Documentation button 4 Click the Install...

Page 23: ...ne 420 421 490 491 Service and Support If you need further assistance or have questions see our web site http my okidata com In the U S and Canada call 1 800 OKI Data 1 800 654 3282 24 hours a day 7 d...

Page 24: ...620 Tel 856 235 2600 Fax 856 222 5320 www okidata com 59348501 OKI is a registered trademark of Oki Electric Industry Company Ltd Microsoft and Windows are either registered trademarks or trademarks o...

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