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mrwho
09-20-2012, 05:42 PM
Hello there. I'm kind of hoping someone familiar with these dot matrix machines can help me.

I've got one of these 3321 at a customer who uses them to print address stickers.

Some days ago, for no apparent reason, the machine started to add two or three blank lines roughly every 73 lines (it's hard to count lines on these printouts, so it could be 72 or 74).

The customer has a second machine that does not exhibit this behaviour on the same computer with the same data cable, so I ruled these out of the equation - it has to be the printer.

Even after comparing the printer configuration and matching the "bad" machine's config with the "good" machine's config, the problem persists.

I really don't know what else to do, if anyone could give me a clue or something else to try, I'd be very grateful.

I'm attaching the configuration printouts for both machines, as well as examples so you can better understand what I'm talking about.

17302

Thanks.

Eric1968
09-20-2012, 06:21 PM
You can try to switch EPROM's, maybe the bad machine has a faulty EPROM (The big chip on the Driver Board).

JustManuals
09-20-2012, 06:24 PM
You sure about that model number? I have every Okidata manual there is and 3321 isn't one of them.

Paul

mrwho
09-20-2012, 06:50 PM
You sure about that model number? I have every Okidata manual there is and 3321 isn't one of them.


Yup.

http://wisniewski.wwv.pl/Allegro/19.02/11.JPG

Eric, thanks for your tip. It is definitely a possibility, but I'll leave that as a last resort, since I don't want to risk leaving the customer with two dud printers instead of one.

Eric1968
09-20-2012, 07:21 PM
You sure about that model number? I have every Okidata manual there is and 3321 isn't one of them.

Paul


The 3321 is the 13.6" version of the 3320.

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