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In order to clean the optics, you have to remove the two optic covers (one over the **** glass on the left and one on the rear side of the main platen glass). Each cover should have 2 or 3 screws.
Clean the **** glass and platen glass with alcohol and a lint-free rag (both sides) and blow compressed air onto the mirrors, lamp, and reflector. It's a good idea to turn off the copier before doing this.
When reassembling, clean the white strip on the underside of the **** glass cover as well.
Many people ask this same question over and over again. "I get black thin line (s) when using document feeder. If my original is on the platen glass copy is OK."
Well, in most copiers, be it Xerox or Canon or Sharp there is same principle in use. When document is moving it is exposured (copied) by a steady non-moving exposure lamp. If there is any dirt or even a dust particle on the narrow platen glass it will print out as a line.
Most people don't understand this principle and they say "I 've cleaned the platen glass".OK, they have cleaned the BIG glass, but the glass is the narrow one next to the big one. Very often there is glue or white correction lacquer on the platen which of course adheres more dirt.
You may use even the strongest solvents to get dirt off the glass. Remember, it is made of glass and won't get hurt even if you use thinner or nail polish remover.
This tip applies also on fax machines. The receiving end may call back and say "your fax has a lot of lines across the copy".
you will need to take your printer plastics off to clean.4 screws on back panel take out then one screw on left side cover.take out paper tray open toner door 4 screws to remove,turn on side and on bottom there are 3 tabs both sides to remove side panels.one side has a speaker wire to unplug.take off display cover 3 screws to take out.lift off top cover and remove 4 screws 2 each side lift off platen and clean. reverse the order to put back together.take your time and be careful good luck
You mean the inside of the scanner glass? (The platten is a part of the print unit),
You'll have to remove the sides and read cover. Unplug the scanner wires and remove the scanner assembly. Separate the document feeder from the scanner bed. Open the covers of the scanner bed (usually there are screws holding it together). Remove the glass and clean it. Reverse the process to reassemble.
Be careful. Canon multipasses are built a little like a Chinese puzzle box. There are little snaps everywhere as well as screws. Watch out you don't force anything and cause the snaps to break.
hello,first of all,make a copy true the adf,and the next on the platen glass,if both copys are good,then the problem is inside the machine,i.e.drum unit or fuser roller damage.
if the strikes only occurs,by using the adf,then cleaning the scanner platen glass,it is the small glass unit!!! on the left side,from the big platen glass..