How I Finally Got My Canon PRO-1100 to Stop Canceling Print Jobs
Every once in a while, a piece of technology that’s supposed to make life easier decides to test your patience instead. For me, that was the Canon imagePROGRAF PRO-1100 — a gorgeous, professional-grade printer that suddenly developed a mind of its own. After a few idle days, it would silently reject every print job, flashing “Canceling…” as if mocking me. I tried the usual fixes: driver updates, restarts, cable swaps, and more ink-consuming reboots than I’d like to admit. Nothing stuck. Then, after a long evening of trial, error, and maybe a bit of stubborn determination, I discovered that the solution involved disabling AirPrint, using Bonjour correctly, and, strangely enough, entering my latitude and longitude into Canon’s software. What follows is the step-by-step path that finally brought my PRO-1100 back from the dead — and kept it printing reliably ever since.
If you own a Canon imagePROGRAF PRO-1100, you already know it’s a spectacular printer—when it actually prints. Mine had developed a maddening habit: after sitting idle for a few days, it would automatically cancel every print job I sent. The queue would show “Printing…” for a few seconds, then flip to “Canceling…” without explanation.
Rebooting the printer temporarily fixed it, but that came at a steep cost: Canon’s startup sequence consumes an astonishing amount of ink. So I set out to find a better, permanent fix—and eventually did, through a mix of experimentation, network tweaking, and one oddly specific setting that shouldn’t have mattered but absolutely did.
Here’s how I brought the PRO-1100 back to life.
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Step 1: Reset and Remove AirPrint
Start in System Settings → Printers & Scanners on your Mac (macOS Tahoe 26). Right-click anywhere in the printer list and choose “Reset Printing System…” to clear out all existing printer entries. This wipes away any conflicting settings and gives you a clean slate.
Then, when you re-add printers, make sure AirPrint isn’t automatically selected. AirPrint uses a generic driver that doesn’t fully expose Canon’s professional options. That limited communication can leave the printer in an idle or “confused” state, especially after long sleep periods.
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Step 2: Re-enable the Printer with Bonjour
Once the system is reset, click the “+” button to add a new printer. Wait for Canon PRO-1100 (Bonjour) to appear in the list. Bonjour is Apple’s network discovery protocol—it automatically detects devices on your local network.
When the printer appears, select it, but in the Use dropdown, choose Canon PRO-1100 (the official Canon driver), not AirPrint. Bonjour handles discovery; the Canon driver handles communication.
After connecting through Bonjour with the Canon driver, the printer began responding properly to jobs again—waking from sleep and accepting print requests without immediately canceling them.
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Step 3: Correct the Latitude and Longitude
Even after fixing the driver, my printer wouldn’t start printing again until I corrected its latitude and longitude in the Canon Device Information utility.
In the printer’s management console, there’s a field for geographic location. Mine was blank. I entered my exact coordinates—available by right-clicking my address in Google Maps and selecting “What’s here?”—and saved the change.
Almost instantly, the printer came back to life. It started accepting print jobs normally and stayed responsive even after days of inactivity.
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Why This Worked
Here’s my theory: AirPrint and Canon’s full driver were conflicting over how to manage network communication. Bonjour, using the Canon driver, maintains a more stable connection. But the missing latitude and longitude prevented the printer from properly registering with Canon’s internal service protocols, so it couldn’t resume communication after idle periods.
Once the location was corrected, everything synced. No more canceled jobs. No wasted ink. No reboots.
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Final Tip
If your Canon PRO-1100 keeps canceling print jobs, try this:
1. Right-click the printer list and reset all printers.
2. Re-add your PRO-1100 using Bonjour, but choose the Canon driver instead of AirPrint.
3. Open the Canon utility and enter your latitude and longitude.
It sounds unconventional, but it worked flawlessly for me. Since making these changes, my PRO-1100 has stayed fully connected, quietly humming along and ready to print whenever I am.
