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A customer brought in an OfficeJet I7680 that will not print black. He is using "compatible" ink for an OfficeJet K550. Not sure if that could be the problem or not... This inkjet uses tubes much like a DesignJet. Is there a way to prime/purge them? Any suggestions whatsoever?

I worked on a customer's Printek 4503 yesterday and cannot figure out why the front tractor gear will not mesh with the line feed gear unless the printer is open. I can have it closed all the way up to before it latches closed and the gears will mesh up every time. I can then close it the rest...

My customer is getting wavy lines when they print certain documents. I couldn't duplicate the problem with any of the built-in diagnostics. Here is an example of what they are getting. The blue "DBE News" box is supposed to be solid blue. The wavy lines will continue onto blank pages as...

I recently replaced a yellow printhead, belt, printhead carriage assembly, and ink tubes assembly. The printer worked great when I was done. The customer just called me and said in the past couple months since I fixed it, it has intermittantly said it needs ink when it really doesn't. He said...

I have two customers' whose printers are printing several pages of pink and yellow every 100 pages or so. You can see a scanned-in image here: http://www.themorrisonclan.com/images/9500.JPG Any ideas?

I have a customer that wants me to replace the teflon roller in his LaserJet 4 printer instead of the whole fuser. I can't seem to get past the plastic piece without breaking it. Can anyone give me any ideas on how to remove the old roller?

Anyone know where I can find a breakdown of parts for an Okidata B6300?

I have a customer with an Okidata B6300 that is getting paper jams while trying to pick up paper. I've replaced all the little orange rollers, but it's still not picking up the paper. Any suggestions?