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I want to darken copys on my canon pc850

With my cannon pc 850 i recently needed to get a new toner cartridge, last time that i did so i had a professional refill it and adjust the darkness of the copies.. since i have replaced it this time the copier dose not copy as dark, we use a lot of red pencil sketches in the copier machine and now even at max darkness they are still to light of copies for what we need here.. i know there is some sort of way to adjust it using the key pad on it i just don't know it. any help would be appreciated

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It seems you used the cartridge upto 3 times usage. you may need to change the drum.

Posted on Feb 18, 2009

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I have a Cannon PC 140 copier. Recently, It began putting about a 1/4 inch thick black line on ever page I copy. What is wrong and how do I fix it?

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If you changed the toner cartridge before the previous one was completely empty, it is possible the machine simply did not reset.

Turn the power off and take the new toner cartridge out. Turn the power back on and wait for a message telling you there is no toner.
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If the problem persists please get back to me
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