How do I print envelopes on Canon MX850 printer?
My Canon MX850 multifunction printer works fine when scanning documents or printing on regular paper, but I've run into an issue while trying to print an envelope and can't figure out how to resolve it. I'm running Yosemite 10.10.3 and the latest printer driver which Canon released in 2013 for Mavericks. They have no updated driver listed for Yosemite.
Regardless of whether I print from the main paper tray or from the vertical feeder on the back, the print job is offset to the left by a few inches as if the printer/driver are expecting the envelope to be centered in the feeder rather than positioned along the right edge, where it's designed to go. I reproduced the same issue when printing from MS Word, which suggests it's a driver/settings/OS issue rather than anything specific to the application from which I'm printing. I've tried toggling the orientation switch in the print dialog to no avail, as this just (predictably) rotates the printed image.
Here are screenshots of the settings I'm using in the print dialog box from the Contacts app (I edited out the addresses):
This old printer is still in like-new condition, and with my light usage it can run on a set of ink cartridges for 6 months or longer. From everything I've read, this model far exceeds the build quality and performance of Canon's newer models, so I have no desire to replace it, especially considering how seldom I print.
MacBook Pro with Retina display, OS X Yosemite (10.10.3)