Sleep Mode Problem

[medicalassistan]

I’m unable to disable sleep mode on my HP Deskjet 2640 and it’s having problems printing because it’s supposed to wake up everytime I send a print job but it doesn’t do that. Also, because it’s doing this it’s causing a problem with connection and I’m Instantly getting notifications that it’s not detected to WiFi and not giving the info to instant ink that it needs to. 

[Hawks_Eye]

Hi @medicalassistan 

Welcome to the HP Support Community!

Thanks for posting your query! We're here to help you get back up and running.

It sounds like your HP DeskJet 2640 is stuck in sleep mode and not waking up properly for print jobs, which is also affecting its Wi-Fi connection. Let’s go through some troubleshooting steps to fix this.

Steps to Fix Sleep Mode & Connectivity Issues:

Disable Sleep Mode (If Available)

• Open HP Smart or HP Printer Assistant on your computer.
• Navigate to Settings > Power Management and look for a sleep mode option.
• If available, disable or extend the sleep timer.

Assign a Static IP Address

• On the printer’s touchscreen, go to Wireless Settings > Print Network Configuration Page.
• Note the IP address and enter it manually in your router settings.
• This prevents the printer from disconnecting when idle.

Reset the Printer’s Network Connection

• Press and hold the Wi-Fi button on the printer until the light starts blinking.
• Run HP Easy Start on your computer and reconnect the printer to Wi-Fi.

Update the firmware on an HP printer:

• HP regularly releases new firmware versions for printer enhancements, app updates, or issue fixes. Update the firmware regularly to get the most out of your printer.
• Click on the link below for step-by-step instructions on how to update the firmware of your printer:
  HP Printer Firmware Update Guide

Check Router Settings

• Ensure the printer is connected to the 2.4GHz network (not 5GHz).
• Disable AP Isolation in router settings, as it can block communication.

Run HP Print and Scan Doctor (Windows Alternative)

• If you have access to a Windows PC, run HP Print and Scan Doctor to diagnose deeper issues.
• It can sometimes resolve problems that macOS tools miss.

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye