Oki MicroLine 395 printer

Here is an excellent source of information on this printer:

http://www.accuratelaserservices.com/OF5250_5400.pdf

It's got some flow charts in section 7 that will help you diagnose why the alarm light is on.

Sean

I know that... that's why I put the second link up. I realized that the first one I posted was the wrong one, and since I couldn't erase that, I posted the follow-up. Please try the second one, remembering to take out the space that appeared about midway through the link due to wrapping.

The alarm light gives part of an error code the rest of the code is from the other lights. The way it works is the lights give a binary number that points to what has trouble or failed. Basically The lights on the lower left are the first 2 bits andthe upper are the second. So please get back with what other lights are illuminated including the section of the button panel (size, font etc) and if the alarm is solid or blinking. I can give you the code and what the error means.

The lights that you have on doesn't actually match the flow chart in the service manaul. That OK, it just means you have a different version.

The normal lights are

Orator (Courier Prestige)
Utility
NLQ (near letter quality)
10,15,20
Prop (proportional)

There's a switch that tells when the front printer cover wit the window is open. If you need to run the unit with this cover off you'll need to stick something in the hole to keep the switch in the down position. The switch is located on the right in the front of where the plastic cover closes down.

The printhead is probably having a homing error or the ribbon is binding.

The print head may be stopping up on the bar or the ribbon is binding or not installed correctly.
Remove the ribbon and make sure its not twisted and or binding.

to be continued:

Check the movement of the printhead with and without the ribbon. The carridge bearing (big bar the printhead slides on) DOES NOT get lubricated. The inner sleeve is made of teflon so lubrication will only make the inside of the sleeve sticky and eventually cause the printhead stop. If oily, use alcohol or some other solvent degreaser to remove as much of the lubricant as possible. You should be able to get by with cleaning as much of the bar that can be reached by feeding a solvent dampened ragunder the bar and getting as much of it as possible. Slide the carridge back and forth to help.

If the print head is too close to the platten (black roller) this will also cause it to stop. Often when people change to multi-part forms they forget to move the printhead back (blue lever on right). If too close it will stop printing and error out.

Remove the printhead. Simply take out the 2 screws and pull it straight up. Then check the ribbon mask, it's made of clear plastic with foil square in front that has a diamod hole cut out for the pins to go through. Make sure the pins are not getting stuck in the ribbon or paper. If you put paper in and move the platten knnobs up and down there shouldn't be any smear on the paper. But if theprinthead's too close it will.

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