Error E1 flashing all the time

[Miranda39]

HP Deskjet 2720

error E1 flashing all the time 

paper feed is clear and paper runs through 

have reset many times 

help ! 

[Dragon-Fur]

@Miranda39 

Welcome to the HP Community --

Reference

 HP DeskJet 2700, DeskJet 4100, DeskJet 4800 printers - Blinking lights and error codes

An E1 or E2 error with a blinking Resume light indicates the paper size setting does not match the paper size loaded in the input tray.

First,

Check that the paper you are using is supported for paper size / type / weight.

Reference

 Product Specifications for the HP DeskJet 2720 All-in-One Printer (3XV18B)

Section Paper Handling

Next,

Check that the paper size detected by the printer is the paper size called out in the print job settings.

View / Adjust the default paper size / type using the Embedded Web Server (EWS).

EWS > HP Document / How-to

Use the HP printer Embedded Web Server (EWS)

EWS – Browser – Tray and Paper Management

Open your Browser > Type / enter the Printer IP address into URL / Address bar

Tab Settings > Preferences > Tray and Paper (Management)

Select / Adjust settings for Paper Size / Type

Model Dependent:  Advanced section

Click Apply to save changes

Tray and Paper – Paper Size / Paper Type / Paper Weight

Reminder

HP Smart Mobile requires that paper size / type is adjusted before the content is opened to be printed.

Notes

Paper Size, Type, and Weight loaded in the printer tray must be supported for use in that tray.

EWS provides access and control to check / adjust Tray and Paper Settings.

Note

Depending on the printer model, the Printer Control Panel might (also) provide access to Paper Size / Type settings immediately after the paper is (re)loaded into the appropriate printer intake tray.

What? 

Paper Size, Type, and Weight must be appropriate for the tray in which that paper is to be used.

Depending on the printer model, Tray 1 might be used for Custom media. 

In this scenario, Tray 2 might only support Plain paper.

OR

If the "Custom Paper Tray" is Tray 2, then Tray 1 might only support Plain paper.

Printers that include a Photo Tray generally place limitations on the size and type of paper that the Photo Tray supports.  Example:  Depending on the printer model, the Photo Tray might support only 4x6 inch photo paper.

-------------------------    ---------------------------------

Example - EWS - Tray and Paper

Retain_Printing_Preferences_19

References / Resources

User Guide - DeskJet 2700 Series

Page 12

AND

Page 16

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HP Printer 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), Supplies, and more

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HP DeskJet 2720 All-in-One Printer