Question about OKI MICROLINE 520 Matrix Printer

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How do you replace an okidata microline 521 printhead?

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Turn the printer off

remove the ribbon

on the right side of the head you will see a silver lever/tab lift up on that it is hinged on the left side

lift head straight out

reinstall in reverse order

Posted on May 08, 2009

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Posted on Jan 02, 2017

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Where can I find 32 bit driver pro printer II?


Try contacting Okidata for driver information.

May 05, 2014 | OKI MICROLINE 521 Matrix Printer

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My Okidata 320 microline print cartridge is leaking ink. What does this mean?


The Okidata Microline 320 uses a ribbon. If it smears, just back the tension lever off until it goes away. Smearing will happen with multi-part forms unless you back off the printhead.

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Problem with new installed printhead


If I remember the 320, there is a head-gap adjustment that is normally moved for replacement of the head and must be reset again. Check your manual for that term; 'Head gap adjustment'

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Menu Light flashing is a printhead thermister overheat problem.
Power off the printer and try reseating the print head; if this fails you'll need to replace the print head!

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2 Answers

Printhead needs replacing


The printhead is completely user replaceable and need no complicated instructions.

1. Remove the ink ribbon.
2. Looking from above, find a small shiny lever to the right of the printhead.
3. Lift the lever with your hand and remove the printhead by pulling it upwards (make sure the printer is cold).
4. Reverse the procedure to install the new printhead.

Be blessed.

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Okidata Microline 30 Turbo dot matrix


The problem your having is a spacer motor. It's located under the carriage that holds the ribbon/printhead. The part number is 56513701. Available at Seattle Platen - Dale 1800-221-2388.

Here's a free copy of the Okidata 320T service manual that will walk you through testing and verfying before ordering the replacement part.

If this helped you, please hit me up with a FIXYA. Thanks.

http://www.feedroller.com/Store/Service%20Manual/SER320T.PDF

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1 Answer

Okidata microline 521


You should clean the printer every six months (or after
about 300 hours of operation).
1. Turn the printer OFF.
2. Remove the paper from the path.
3. Open the access cover and remove the pull-up roller
assembly.
4. Use a clean, dry cloth to dust the area around the
carriage shaft and platen. Be sure to remove any loose
particles of paper.
5. Reinstall the pull-up roller assembly.
6. Close the access cover.
Never use solvents or strong detergents on the
cabinet — they could damage the housing.

Aug 11, 2008 | OKI MICROLINE 521 Matrix Printer

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