paper width error message persistantly showing up canon pro 300 and ejecting my print order.

richardkoek — Thu, 06 Aug 2026 19:44:10 GMT

I have tried everything. It keeps ejecting at start of printing with wireless printing from my Imac.
"cannot print. The paper widths do not match". Printing a picture on lettersize paper.
#1062 Well THEY DO MATCH! Checked photoshop settings, checked the printer. Registered the size, enabled the width detection. Turned on and off. Did firmware updare. This is driving me nuts.

Re: paper width error message persistantly showing up canon pro 300 and ejecting my print order.

SignifDigits — Fri, 07 Aug 2026 12:06:50 GMT

Have you attempted printing using the printing applications supplied by Canon at https://www.usa.canon.com/support/p/imageprograf-pro-300 or strictly PhotoShop? Do you have this problem with other sizes of paper?

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paper width error message persistantly showing up canon pro 300 and ejecting my print order.

Re: paper width error message persistantly showing up canon pro 300 and ejecting my print order.