Copier gets magenta toner on copies. Might get 1 good copy out of 6. Also the machine now does not want to come on. It keeps clicking off. If you hold the power switch, it tries to start up but as soon as you release the button, it turns itself off again.
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Re: Copier gets magenta toner on copies. Might get 1
There is probably an electrical fault related to the fuser unit or another high voltage component causing the machine to shut down. Since you have not mentioned the error it would be hard to ascertain exactly. Magenta on copies will be a sign that your machine needs cleaning and servicing by a trained technician - as there will be corona wires, cleaner units etc that need cleaning or replacing. The technician will probably find the cause of the shutting down whilst they are servicing it.
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3 possible causes:
1) The optics are dirty thus making your copy darker. The test for this is to manually lighten the copy using the exposure control on the panel of your copier. Lighten the copy several positions and see if the copy gets better. If it does then the optics need to be cleaned.
2) The copier is overtoned. This means that the toner to developer concentration is to high. This will require a trained technician to lower the toner ratio and then recalibrate the toner/developer ration using the F8 mode.
3) If the shading gets much worse as you run say 10 copies in a row then the drum cleaning blade would be the cause. So run 10 copies of something and compare the first copy out with the tenth copy out. Do you see a dramatic difference in the amount of background or "shading"?
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I suggest removing the toner, and visually inspecting it, make sure the sealing tab has been removed, give it a really good shake, as the toner may have settled in storage. re-insert the cartridge making sure it goes in the right way.
If you can hear a slight 'clicking' noise it's adding toner and pumping it into the developer unit, some machines take 2 minutes, some take 6..
Failing that, lift the platen cover and do a few black copies, so you force the machine to add toner.
No, the 450 is just one of those machines that seem to have PCQ no matter what you do. Given light copies, I'd replace the drum for sure and make sure your ID sensor isn't covered with toner. Dust covered optics will also cause light copies on this model.
A common mistake is that people think that the waste toner needs to be emptied and instead the toner needs to be replaced --- and vice versa. Check to make sure that the toner bottle is not empty. Also, if you made copies that took ( used ) more toner then the machine was able to replenish, the machine has not had a chance to catch up. Place a white sheet of paper on the platen glass and make blank white copies. You may only be able to get 1-2 copies at first but as the device catches up with the toner replenish you should be able to make more. The blank copies you make -- do NOT put that paper right back into the machine. Lay it flat and let it cool, this will help prevent unwanted jamming due to heat build up in the paper. IF you have good amount of new toner in the machine, gently tap the front line ( or rear line) that feeds the used toner into the waste bottle. Sometimes the waste toner will clog and back up into the machine giving false 'waste toner full' message.
Sounds like your drum cartridge might be bad.
Something you can try that might narrow down the problem is to make a copy of something and shut the copier OFF in mid copy.
(Basically, when the light is about 1/2 way finished scanning.)
Then, open the machine up and removed the jammed paper which should be 1/2 way through your machine and hopefully about 1/2 way under the drum/toner cartridge unit.
See how the copy looks at that point. **** FYI **** The toner on the paper is NOT FUSED so it will RUB OFF. Keep the paper away from your clothes and toss it.
IF your copy has smudges on it, then there is a real good chance that your drum unit is bad and needs to replaced.
If the copy looks good, then there is a possibility that the fuser unit is bad and needs to be repaired.
I would say that your drum unit is bad with my experience with Canon Copier.
If you still have more questions, feel free to ask.
Have a good day. Good luck.