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 ?
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.
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Hi, You might want to read the bulletin below before using that machine. Hope that helps. Lbcoaster
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:
UKK52923 to UKK55442
UKK60513 to UKK99999
YKK02001 to YKK20000
The serial number on your FAX PHONE B640 is printed on a silver sticker located on the back of your product, as shown below:
If your FAXPHONE B640 contains one of the above-listed serial numbers, simply call our special Instant Exchange Program toll-free number, (888) 280-7858, between 8:00 a.m. - midnight, Eastern Time, Monday through Friday, or between noon - 8:00 p.m., Eastern Time, on Saturday.* We will arrange to ship you a new FAXPHONE B640 or comparable model, complete with a one-year warranty, at no charge. We also will provide you with a toll-free telephone number to call to arrange pickup of your used FAXPHONE B640. There will be no charge to you for this pickup. Please DO NOT return your FAXPHONE B640 to the retailer from whom you purchased it.
If you have any questions concerning your FAXPHONE B640 or the special Instant Exchange Program, please call Canon at 888-280-7858 or email Canon at B640@va.cits.canon.com.
*If you cannot use the toll-free number because you live outside the United States, you may call (757) 413-2848, and receive additional directions for the replacement of your FAXPHONE B640.
By cleaning the feed rollers you the fax will feed beter.Remove the dockfeeder and the paper tray.you will find the feed rollers in the bottom of the paper tray.Take a cloth and a stong soap selution and clean the 2 feed rubbers.
How long has the drum been in there?
1-take out toner, look and see if it is ok. do you see stripes on it?
2- look at the drum are there any black rings on it? ( you did not specify white or black lines)
3- where the glass is on the opposite side ( the part you lifted to clean the glass, look at it standing from the back. you will see a white metal plate with some springs in it if you touch it. this is the reference that the fax has if there is/are a black dot on it it will give you a black line clean carefully. if it is scratched use white out to cover and make white again.
For the darkness try making a copy in photo mode if it is still too dark change drum.