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Code Error 009-340 Xerox Phaser 790

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sgeos

Technical User
Apr 3, 2006
1
IT
Hello. I have a problem with a Xerox Phaser 790. Everytime I print, LCD Display show an 009-340 code error.
It is enough to restart the printer to be ok for another only one print!
The printers print very good but every print i have to restart.
What kind of problem the printer has?
Can I resolve it?
Please, i'm italian, write in simple way...

p.s. to fieryzx. I read other Thread for other code error...please help me.
info@stefanodiluca.it
 
To bring this story to an end the printer is now operational, the two lamps in the pre heater were open and have been replaced and the print head was indeed faulty, an 840 head has been fitted in its place and printing is fine.
 
I don't understand the reply from Julbac as the 790 is a laser printer and the 840 is a solid ink printer. How can a head from an 840 replace one from 790. I think Julbac may have posted to the wrong thread

By the way the 009-340 is "ADC Cleaning Failure".
There is a routine to determine where the problem is. From the service manual, there are a number of things that could be fixed but from other posts the problem is often the MWB (circuit board).I am not a service tech so this is just what I have read.
 
With a flashlight, look under the carousel where you load toner and see if there is a pile of toner. If there is, then see what color is dominent. Example---more cyan then any other color. This means that you may have a toner "bomb" meaning a seal broke and it now is throwing toner everywhere. That could be from a bad toner cartridge, or a refill type or a bad developer. This will confuse the ADC sensor and report a misleading error.
 
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