Canon all-in-one printers (PIXMA, MAXIFY, imageCLASS) include a built-in fax modem — here's how to set it up, send and receive faxes, fix common errors, and fax without a phone line if you no longer have one.
Frequently Asked Questions
Do all Canon all-in-one printers support fax?
No. Only models with a "FAX" button on the control panel and an RJ-11 LINE port on the back include a fax modem. The PIXMA TR series, MAXIFY MB series, and imageCLASS MF series all include fax; lower-cost PIXMA TS models (print/copy/scan only) do not. Check your printer's spec sheet or look for the LINE port on the back panel to confirm.
Can I fax from a Canon printer without a phone line?
Yes — two ways. First, use the printer's scanner to create a PDF, then upload it to an online fax service like [mFax.to](https://mfax.to) and send from your phone or browser — no phone line required. Second, imageCLASS MF network models support Internet Fax (I-Fax) over LAN, which also needs no traditional phone line.
Why does my Canon printer say "No Dial Tone" (#018)?
Error #018 means the printer can't detect an active analog signal. Check that the cable is plugged into the LINE port (not the EXT port), test the wall jack with a regular phone, and make sure your telephone service is still active. If you're on VoIP or fiber, the digital line won't work directly — you need an ATA adapter or an online fax service.
What is the Canon test fax number?
Canon's official test fax number in the US is 1-855-392-2666 (1-855-FX-CANON). Sending a test page to this number is the fastest way to confirm your setup is working before faxing important documents.
How many pages can a Canon printer store in fax memory?
It depends on the model. PIXMA TR series printers hold roughly 50 pages in memory. MAXIFY MB models hold up to 100 pages. imageCLASS MF laser models hold 256–512 pages — making them the better choice for high-volume faxing.