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Nathan, Engineer
Category: Office Equipment
Satisfied Customers: 25887
Experience:  Owner of IT consulting/services company.
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I can't fax to certain fax numbers from my canon mx700

Customer Question

I can't fax to certain fax numbers from my canon mx700 printer. I can fax to those same numbers without a problem from a different fax machine.
Submitted: 1 year ago.
Category: Office Equipment
Expert:  Nathan replied 1 year ago.

Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.

Sorry to hear you’re having trouble.

Can you tell me a bit more about the problem please:

1) Is this a dedicated fax line, or a shared voice/fax line?
2) Is this a landline from the local phone/cable company, or a VOIP service (vonage/magicjack/etc)
3) Do you have dsl service on the same line?
4) Any trouble receiving on this machine?

Customer: replied 1 year ago.
This is a dedicated fax line. It is a land line / Comcast is the service provider (bundle package-phone, internet & TV). I don't think there is dsl on the same line. No trouble receiving on this machine. I hope I answered all of your questions.
Expert:  Nathan replied 1 year ago.

What specifically happens when you try these certain numbers? Any particular error/code?

When you fax successfully to those same ones from another machine, is that other machine on the same comcast line? Or elsewhere?

Customer: replied 1 year ago.
It rings like it is going to go through then it makes a strange noise and it quits. The error report says incomplete transmission. When my wife faxes from the machine at her work (located elsewhere) it goes right through.
Expert:  Nathan replied 1 year ago.

The issue is that she probably has a real phone line at work. What you have is a digital line through the cable company, which doesn't work well (or often at all) with faxes, which are analog and have to be converted back and forth twice or more send.

Chances are the people you're having trouble with are on a digital line too, compounding the problem.
Go into the fax settings menu and disable error correction and set the modem speed (tx speed) to the lowest possible option. These 2 adjustments should allow it to work even with the poor digital line conditions.


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