Can be if the corona units haven't been maintained properly.
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Hello. You can try to polish drum with Canon powder. I polish some drum unit and its perfect, clean copy and copiers maked about 50.000 copy without any problem. Let me know if you solve problem.
Powder will healp you if you have little white spots ( like salt ). You have to replace drum cleaning blade.Comment
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If it ain't broke, don't fix it
A picture is worth a thousand wordsComment
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Should i use a certain kind of Canon power or will any kind of Canon power work? Also did you use alcohol with the powder and did you use a rag or paper? I am afraid of damaging the drum surface since these drum are so expensive.Comment
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Yes, when I use the rouge colored polishing compound, I make a paste of the stuff using alcohol..."Once a King, always a King, but once a Knight is enough!"
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ASi drums are a silicon base (like glass) and can tolerate nearly any chemical cleaner that I can think of. Alcohol is about the mildest cleaner in my case, and I would not hesitate to use alcohol on ASi drums. The most effective cleaner, and hard to get, is Dispersant. The best modern substitute I've found is lamp oil, a close relative to kerosene. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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It shouldn't harm the drum but it does streak.Comment
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Maybe the drums are different now, b/c I could swear about 15 years ago I ruined one by cleaning it with alcohol. Since then, I always believed that the alcohol removed the chemical coatings.Comment
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On organic drums, Canon's purple drums will turn your white rag slightly purple, but does not affect performance. On Canon's ASi drums I've used Trichlorethylene, Rubber Rejuvenator, MEK, Orange-Sol, Dispersant, ... you-name-it, and have never seen negative affects. Usually it's labels that prompt's me to get out the rough stuff. Dispersant is the best, by far. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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I'll concur with Blackcat. I've used just about anything except sandpaper on the Asi drums. I just like to make sure I get rid of any streaks. Good hard drum to work with.Comment
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Well there ya go. I learned something today.
So are there any drums that shouldn't be cleaned with such cleaners that you know of?
Also, does the same hold true for devices that use a transfer belt (ones that actually carry the toner to the paper)?Comment
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Cadmium drums: Dispersant, lamp oil, or alcohol
Selenium Tellurium drums shouldn't be touched at all if possible. Dispersant or alcohol when desperate.
Arsenic TriSelenide drums: Dispersant, lamp oil, or alcohol
Organic drums: Dispersant, lamp oil, alcohol (use as little liquid as possible)
ASi drums: whatever you've got.
On transfer belts I've used Orange-Sol or glass cleaner, then rinse off any oily residue with alcohol.
=^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Thanks.
Learned a lot today.Comment
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This is what the service manual says but i had little or no result with there procedure.
1) Slide out the process unit. (Be sure to place the drum protective sheet over the fixing/feeding unit.)
2) Take out the photosensitive drum.
3) Moisten lint-free paper with 5 to 10 cc of alcohol; then, pour 0.2 to 0.3 g of drum cleaning powder on the lint-free paper.
4) While butting the lint-free paper relatively strongly against the photosensitive drum, wipe the surface of the drum from the front to the rear and from the rear to the front.Comment
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