Question about Panasonic Panafax UF-790 Plain Paper Laser Fax

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Low toner message

Whenever I replace the toner cartridge, within a short time - two hours - a low toner message appears, yet the cartridge is nearly full. The settings for the fax are to stop when the toner registers empty. But because it is registering empty well before it actually is empty, I am using way too many cartridges. My supplier thinks it might be a bad toner sensor, but seemed to think I could change the setting to allow the fax machine to continue to receive even after the sensor said it was empty. We would just have to watch to see if the received faxes were getting fainter.
Is there a way to change the settings to allow the fax to continue to operate after the sensor says the toner is out and manually monitor it.

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Sounds like you have a bent toner sensor. turn the machine off and take the toner out and place on the side

what you could try to do is grab a piece of paper fold it in 4 like so
__ __
|__|__| __
|__|__| then rip one piece like so |__|

then rip one piece off and fold that 5 times over it self.

look into where the toner goes in the middle you will see a silver bracket with a black round piece of plastic on the top left conner you need to put that piece of paper under that coner where the black circle is and turn the machine back on then put the toner in.

if this does not work you need a tech to look at it

Posted on Dec 04, 2008

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