how to disable auto off on DeskJet 4255e

[ADKMike]

I just purchased the 4233e and am running it off multiple devices including a Mac using OS12, 2 iPads using iOS26 and a Chromebook.  Even with all those devices, there will often be periods of a couple days when the printer is not used.  The printer is in a different room on a different floor from where my wife works.  I don't want the printer to turn off as that would be a huge inconvenience for her to have to go upstairs to manually turn the printer on.  How do I deactivate the annoying auto off feature?  Or is there a work around to avoid the problem?

[Dragon-Fur]

@ADKMike 

Welcome to the HP Community --

According to the user manual, Auto-Off is only enabled in certain conditions.

 User Guide – HP DeskJet 2800 4200 4900 All-in-One Series

OR

 User Guide – HP+ - HP DeskJet 2800e DeskJet 4200e All in One Series

Section Auto-Off - Page 57  

Excerpted

Auto-Off
This feature turns the printer off after a period of inactivity to help reduce energy use. Auto-Off turns the printer off completely, so you must use the Power button to turn the printer back on.

If your printer supports this energy saving feature, Auto-Off is automatically enabled or disabled depending on printer capabilities and connection options.

NOTE:  Even when Auto-Off is disabled, the printer enters Sleep mode after 5 minutes of inactivity to help reduce energy use.

● Auto-Off is enabled when the printer is turned on, if the printer does not have network, fax or Wi-Fi Direct capability, or is not using these capabilities.

● Auto-Off is disabled when a printer’s Wi-Fi or Wi-Fi Direct capability is turned on or when a printer with fax, USB, or Ethernet network capability establishes a fax, USB, or Ethernet network connection.

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Section Change the time for Sleep mode from EWS

Sleep mode cannot be used to disable Auto-Off --

The time-to-sleep can be adjusted, perhaps at 5, 10, or 15 minutes.

Example - EWS - Settings > Power Management > Energy Save Mode

EWS_9025_Settings_Power_Management_Sleep_2

Printers that have a manual / static IP address assigned and the router set to that IP address for the printer might tend to stay connected better than, for example, if the router is assigning a DHCP (rotating) IP address. 

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HP DeskJet 4200e All-in-One Printer series  

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