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?

Tara, if the ink levels are ok, try clean and allignment functions from the tool menu. Use CLEAN UNUSED PAPER.

try to replace magenta , Yellow , CYAN

It could be fixing roller!
I pressume that you cleaned copy glass very well!!!

You might have touched the main charger cleaner a green part above the waste toner container. just push it inside and try to copy and print

NO, I DID NOT GET IT FIXED. YOU TOLD ME TO SCAN SOMETHING TO THE PC, WHICH I DID. SENT PAGE TO MICROSOFT WORD AND THE BLACK LINE WAS STILL THERE. I BELIEVE MY SOLUTION IS TO JUNK THIS THING AND BUY ANOTHER.

Is it From top to bottom? if it is, clean the optics unit, its lens array and mirrors.

try cleaning the rollers with water in the feeder at the top check the glass too too see if it's dirty

can you try to post a copy of what you see wrong . and try to do an internal printout " function-6-4-start- under the fax button. "

does the line only show up when making copies from the adf or both when you put it on the glass. if only when thru the adf the **** glass is dirty. that is the glass that is only about an inch wide. be carefull of the two pieces of tape that are on both the front and back of that glass they fall off easly.

Sounds like the issue is with the scanner bulb. May not be moving across or warming up to full capacity.

Make sure the scanner is plugged in directly to the wall and not into a surge protector or a power strip. If problem is still there and you are in warranty you will need to replace the unit. If OOW then you should call and see if you can repair or upgrade the unit at a discounted price. If you want to speak to someone in English tell them you want mac support - they are in Canada.