I cannot get my HP OfficeJet Pro 7740 to autoselect the correct size paper.

[myflaglernotary]

I purposely bought a dual tray printer because I receive loan packages on both letter and legal size paper within one attachment. I have tried everything and cannot get this printer to automatically select the correct size paper.  I have wasted so much ink and paper! not to mention time!

Could it possibly be something with the way the computer is set up? The documents are always PDFs, and I have the box in the adobe print box checked that says "Print same paper size as PDF originates"  (Or something along those lines)

First, let me make sure the printer is set up correctly and I will go from there.  Can anyone please help me?  Thank you so much in advance!!

[Jay_G24]

Hi @myflaglernotary,

I'd like to help!

The printer cannot automatically select the paper sizes unless the setting is set to default.

By default, the printer draws paper from Tray 1. If Tray 1 is empty and Tray 2 is installed and contains paper, the printer draws paper from Tray 2.

You can change the behaviors using the following features:

● Default Tray: Set the default tray from which the printer draws paper first when paper of the same size is loaded in both Tray 1 and Tray 2.

● Tray Lock: Lock a tray to prevent it from accidental use; for example, when you have loaded special paper (such as letterhead or preprinted paper). The printer will not use a locked tray even when the other tray is empty.

NOTE: For better experience, load only one type of paper in a tray.

NOTE: Tray 2 supports only plain paper

You make also refer to - Print Driver Settings Guide (Windows)

Hope this helps! Keep me posted. 

And, Welcome to the HP Support Community. 

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