Question about Canon FAXPHONE B640 Plain Paper Bubblejet

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Black lines when i fax or copy

I have tried to clean my Canon FaxPhone b640 several times. since i do not use the machine very much i assume that everyday dust has settled into the machine.
I have been looking for a manual that would describe dissembling the machine so i can properly clean and reinstall a "O" ring that is damaged.
Is there anyplace on the "net" i can find such a manual ?

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Sounds like a problem I had. When I sent or received faxes I would see vertical lines running down the entire length of the sheet. I cleaned and the problem persisted. I researched the problem and found that since I had removed and replaced the cartridge I needed to perform a "shading adjustment". This is a software alignment fix. You merely push a set of buttons on the front panel and the unit performs this alignment. I've lost my notes on this procedure, but I will continue looking for them. I hope this helps a little.

Posted on Nov 15, 2008

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If you have lines only when you send or copy, i would check the scanner under the kboard for liquid paper or other stuff on the glass

Posted on Dec 21, 2007

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An electrical component used in certain FAX PHONE B640 units manufactured between September 30, 1999, and January 26, 2000, may present a risk of fire.
This potential risk, and Canon's commitment to customer satisfaction and safety, have led us to implement a special Instant Exchange Program to replace, at no cost to customers, all FAX PHONE B640s bearing the following serial numbers:
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here is the manualit can guide you better, look for the troubleshooting and maintenance section

http://www.retrevo.com/s/canon+b640++manual?rt=tr&p=http%3A%2F%2Fwww.usa.canon.com%2Fcpr%2Fpdf%2FManuals%2Fb640_ug.pdf

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1 Answer

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For the darkness try making a copy in photo mode if it is still too dark change drum.

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