Question about Lexmark E250dn Laser Printer

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First and 4th yellow lights stay on

Hi, all of a sudden the first and 4th yellow lights turned and stay on. According to the lexmark tech, it it because it is out of toner. I changed the cartridge, but still getting the same problem. Now they say it could be a faulty toner sensor.
We did a factory reset but still having the same issue.
Any idea what could be the real problem? And how to fix it?

Thanks
Gerry

Posted by on

  • bcrawford230 Oct 27, 2008

    We also changed the photoconductor kit, as this was indicated prior to the current problem. After we did that, things seemed to be normal for a few days, now the 1st and 4th lights are permanently lit and nothing will print.

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You should still be able to do a printer test page (press the arrow button).

Look at the printed page(s) for the Photoconductor AND the Toner.

They show as OK when new (or very low count), and 100% when fully used.

It IS ossible that the toner cartridge has a faulty (or if a remanufactured cartridge - un replaced) chip.

Some 'after market' chips are not compatible with E250, and it IS possible that your replacement cartridge is for an E350, or E450 (which have different chips, and some of the poorer remanufacturers , and some reselers that don't do these very often don't know).

It could even be a Dell 1720 chip on the cartridge.

I make around150 Dell 1720, 20 E450, 50 E350 cartridges a month and only around 5 E250s, so this gives you an idea of the relative numbers, in the market

Posted on Mar 30, 2010

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