What are the supported paper sizes?
Supported paper sizes include Letter, Legal, A5, B6 (JIS), 16K, Double Postcard (JIS), Monarch Envelope, and C5 Envelope among others. For complete list refer to section on Supported Paper Sizes.
From the official HP Laserjet Pro Mfp M226 manual, page 14
Have a follow-up question?
Answers from the official manual.
Common questions