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Do you need to install your printer? Click here for tips and tricks!
HP Recommended
HP ENVY 7645 e-All-in-One Printer
Microsoft Windows 10 (64-bit)

I can't get the photo tray to handle 5.25"x7.25" wide envelopes.  Any suggestions?  Very time sensitive!

HP Recommended



Welcome to the HP User Community.


Use the main tray for your envelopes.


Load the envelopes in the main tray using the instructions in the User Guide

Starting on Page 13


If needful,

If the full driver printer software is installed,

Create a Custom Paper Size Form

HP Document: HP Printers - Creating Custom Paper Sizes


Example - Custom Paper Size Form



Alert the printer to the paper size / type loaded in the paper tray.

Use either the printer control panel or use the Embedded Web Server (EWS)

Tray and Paper Management



Check / Adjust / Retain the Paper at the Printer Display Panel


Open Printer Tray,



If you are having trouble with getting the printer to accept (new) paper,

Remove the stack of paper from the tray

Lightly flex (do not fan) the paper to separate the single sheets

Restack together so the edges match along all sides

Return the paper to the tray



Wait a few seconds

Close Tray

IF applicable for your printer:

On the Printer Control Display Panel,

Click Modify / Change / No-Yes (wording varies), adjust the paper size and type, Click OK


No Size?  If the size of the Paper Size is not in the Drop-down list, Select Custom

Note:  Not all printers allow selection of “Custom”


Example - Retain / Modify (Edit) / Check Paper Size / Paper Type - Tray and Paper Management



Example - Word > Mailings > Envelopes

Note the reminder to select "Custom" size and enter the dimensions for your envelope.




HP Printer Support Home Page - References and Resources – Learn about your Printer  - Solve Problems

 “Things that are your printer”

When the website support page opens, Select (as available) a Category > Topic > Subtopic

NOTE:  Content depends on device type and Operating System

Categories:  Alerts, Access to the Print and Scan Doctor (Windows), Warranty Check, HP Drivers / Software / Firmware Updates, How-to Videos, Bulletins/Notices, Lots of How-to Documents, Troubleshooting, Manuals > User Guides, Product Information (Specifications), more


HP ENVY 7645 e-All-in-One Printer 


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