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- HP Community
- Printers
- Printer Paper Jams & Feed Issues
- I'm trying to print 5.25"x7.25" inch envelopes in my HP7645....

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04-20-2022 03:52 PM
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
Custom_Paper_Size_Form_Examples_3
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,
NOTE
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
else
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
Retain_Printing_Preferences_11
Example - Word > Mailings > Envelopes
Note the reminder to select "Custom" size and enter the dimensions for your envelope.
Rabbits_and_Chickens_Test_Envelope_10_12
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
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HP ENVY 7645 e-All-in-One Printer
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