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Check the baud rate of your transmissions. Slow them down to the slowest setting and send a test fax to a helpful person. Slowly increase the baud rate (communication data speed) and send the fax test. When the fax doesn't show up on the receive site, then step one baud rate speed back, and save the setting.
It could also be your fax that is faulty, or even the receive sites fax, also being faulty.
To test your copy-head, insert a document into your loading section of the fax and press copy. If the copy prints out fine, then you know the head is reading correctly.
It is also possible that the receiver fax (the other end) has a printhead failure.
It sounds as if your PC's fax/modem card is set to automatically receive faxes, so the PC answers the phone whenever it's on. To fix this, you need to set your fax modem to receive manually (or disabled if you don't use it to receive faxes). Open the Printer and Faxes (Windows XP) and double click the fax icon. If this is the first time you've opened it, you'll have to go through the fax configuration wizard, if not, you'll be presented the Fax Console. Click on Tools, Configure Fax. On the second page of the configuration wizard, you'll be presented with the select fax device. This is the page where you select to enable fax sending and receiving. Turn off the Enable Receive check box if you never want to receive faxes. Leave it on, but set to manual if you want to be able to manually receive faxes (every time your phone rings, you'll have a notification in the system tray asking if you want to receive a fax).
Canon does not offer any sort of recovery which is really sad, while the fax is still in the ram, its in full binary which is unreadable to the human eye so even if you could dump the ram/cache it would be rendered useless.
Where the original page that you wish scanned/faxed there will be a device called a "scan part". This device "reads" the paper to be faxed/scanned as it passes. It usually is found very near where the paper to be faxed goes in. If there is a spec of debris on this part it will cause a fine line straight down the document. If its dirty, the document will be too! Just give it a good cleaning and you should be fine. Did this help? Click "FixYa" below! Thanks Len
The scanner that scans the paper is likely dirty. Pull the cover with all the buttons toward you, and clean the glass that the paper slides by, preferably with a soft cotton cloth and some rubbing alcohol. Try to make a copy to see if the quality is improved
Problem is ambiguious but print out a report from your machine and if it comes out black, it is likey a toner cartridge problem. But if its OK make sure your scanner lamp comes on when reading the original
You can try using the menu to lighten the fax, but if all received faxes are dark, you may be experiencing a weak scan light. try making a copy instead of fax (which essentially is a fax printed to yourself) if also dark, its certainly your scanning imagerthat's failing. If that's the case I would recommendreplacing the entire machine. Parts are expensive, and its a difficult to service part yourself. Also you may find that toner costs alone may pay for the replacement machine over this unit.
More than likely (since the problem is with sending and copying only) the mirrors inside the fax machine need cleaning. However, depending on what type of fax machine this is, this could be a pretty involved job. If you are pretty comfortable with taking covers off, you might try it, but if its a pretty expensive fax machine, I would call a professional.
hope this helps!!!
If you can copy ok you have effectively ruled out your machine as you have used both the scanning and printing mechanism of the machine.
It will probably be the fax on the other end as if it sends a poor quality page that's all your machine can receive, a poor line can also cause problems if it is from multiple faxes. If so have your provider check the line (you probably hear static on the line).
Received fax is unreadable or blurry Please go through the checklist below to see if the suggested action(s) can resolve the issue.
* Make sure the copy function is working well. * Print a Clean nozzle page from the Maintenance menu. If the printout has unexpected white or color horizontal streaks or missing portions, print the Clean nozzle page again. If you are still experiencing streaks or mission portions, you may need to replace your cartridge(s). * The cartridges may need to be aligned. * You may need to ask the sender to increase their fax quality.
Sent fax is unreadable or blurry.
1. If the receiving party indicates that the fax output is unreadable or blurry, you may want to try increasing the fax quality. 2. Check the scanner glass for excess amounts of smudges and/or fingerprints. If the scanner glass needs cleaning, moisten a clean, lint-free cloth and gently wipe the scanner glass. Make sure the scanner glass is dry before scanning the next document.