> Updated driver causes crashes
I recently updated support for myCanon Pixma PRO-1 printer. Following that, when printing a photo at high quality, the printer software crashed and the printer was unresponsive. I can’t understand much of the crash report’s contents, but it refers to EXC _BA D_ACC ESS (SIGSEGV). How can I fix it?
That generic error message usually indicates that the printer software is broken. After an update, it shows that failed, either because the update didn’t install properly, or because there’s a bug in the new version.
The first thing to do is to check that your Pixma PRO-1 printer’s firmware is v2.000 or later; if not, update it using Canon’s Printer Update Utility. Then uninstall it from the Printers & Scanners pane.
Choose between installing version 220.127.116.11 of the printer driver from Canon, or leaving macOS to install its latest release. Normally you’re better off relying on macOS, but for this model you may find the Canon-supplied driver supports higher quality output.
If that still doesn’t work properly, install the previous driver if you happen to have a copy to hand. If you don’t, check with Canon, which should still be able to supply it.