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I can't tell you which models, but once they go into an error code the Settings Menu may become inaccessible. And if you replace the printhead while in service mode the error will remain. So if I...

There's a third & fourth choice:

3rd: Ends up under the heaviest object in the room, regardless of how far away.
4rth: Is magnetically attracted to the nearest circuit board, and the most...

Welcome! =^..^=

Welcome from the other side of the world. =^..^=

I've never seen the official bulletin, but it's no small task. On later production models they installed a new style front cover with holes to access the screws for the waste outlet. On my machines,...

If I were to guess, I'd guess that the U021 reset cleared the speed upgrade code, so it won't accept that toner, and it will run at 25ppm. I suspect that you'll have to call the hotline to get the...

Thanks Lawrence! That video is a nice demonstration.

I like choice #2. Buy the good used replacement. You can part out the old one later on, as needed.

In a very high volume situation it will run longer than a low volume situation. That's the only...

So just to clarify: That line is crossfeed? If yes, start with the simplest of solutions: clean every rubber, metal, or plastic roller thoroughly. I use an orange oil based cleaner. It leaves the...

Correct. =^..^=

Those were my conclusions. Once the overtoning starts, replacing the developing unit is the only cure. This is not a machine that you want running 1000 pages per month. More is better, as with most...

Go with the kit. There are detailed instructions in the package. it is important to follow the documentation. If resets are not done before service is performed, it can take a very very long time for...

Kyocera 4501i Dumping Toner
7002i / 8002i development unit problem
Copystar CS3500i
4501i machines overtoning or ghosting alot ???

They all say the same thing: Vacuum out the registration...

I'm always loathe to disconnect any ribbon cable I don't have to. They damage far too easily. This is my preference too. =^..^=

Lol!! The world will always build better idiots.

I remember installing machines in the 1990's. The customer asked us to remove all the function buttons except the green start button. The endusers...

Lol! At one of the Special Ed buildings we had one of the special ed kids try to remove the screen from a bizhub 951. He was not successful in removing it, but did manage to break it and bend up the...

I agree on this one. We have had a couple cases on high speed Konica Minoltas, in which fanning the paper made all the difference. Between us techs, we concluded that the fanning the paper was...

Welcome! =^..^=

That's ingenious. Clearly we came from the same school. For many years, instead of canned air, I used an air mattress inflater. It's not quite as powerful as canned air, but works fine on a DF and...

Are you sure about that model number? the eStudio 305 is a Loire (Toshiba build, not Lexmark), and I can't find any reference to a Lexmark 338 on the internet. =^..^=

So there's no solution. Now I get it.

I usually try to address questions as they come up, and there weren't any questions in your post. I don't mind a little snark in the response, but I think...

This sounds a lot like a C-2557 situation. As the toner density lowers it will eventually code out. If you don't happen to be standing there at the moment it happens, you won't see the code. Then it...

It's a negative, that's interesting. Thanks for sharing. How much confidence do you have in that solution? =^..^=

I like this one. Perhaps the shading adjustment cannot be successful because of direct sunlight into the scanner cavity.

On a tangent: I had a Mita many years back that was having continual...

The fans are there to cool various parts of the copier as they become hot. Yes, parts of the copier may become hot, even when you are not currently making prints or copies. You should not expect the...