Diagnosis
The HP ENVY Inspire 7955e is experiencing "phantom wake-ups," a common issue where the device exits its deep sleep state unexpectedly. This is primarily caused by the printer's "Auto-On/Auto-Off" power management logic reacting to network "heartbeat" signals. When a computer, smartphone, or the HP Smart app sends a discovery packet (a "ping") to verify the printer's availability on the Wi-Fi network, the printer interprets this as a request to wake up and prepare for a job. Furthermore, because this is an "e" series printer, it is designed for constant connectivity to the HP Cloud for HP+ services. The printer frequently checks in with HP servers to verify ink subscription status or firmware updates. If the network environment has unstable IP assignments or if a router is aggressively scanning for devices, the 7955e will trigger a full power-on sequence, often lighting up the control panel and cycling the print head carriage, which is what you notice in the middle of the night.
How to Fix It
To stop the printer from waking up randomly, you must modify the power settings and the network communication behavior. Follow these exact steps on the printer's integrated touchscreen:
- Wake the printer and ensure you are on the home screen. Swipe down from the top of the screen to open the Dashboard.
- Tap the Gear icon (Settings) in the top left corner.
- Navigate to Advanced Settings.
- Scroll down to Power Management.
- Locate the Auto-Off setting. By default, this is often set to a specific time (like 2 hours). Change this to Never or the maximum available duration. This prevents the printer from cycling its power state repeatedly.
- Look for Auto-On/Wake settings. If your specific firmware version lists a "Wake on LAN" or "Network Wake" toggle, switch it to Off.
- Return to the main Settings menu, go to Network, and select Restore Network Settings. This clears any cached "wake" requests from old devices that may be pinging the printer from a different IP address.
- Restart the printer by unplugging the power cord from the back of the unit, waiting 30 seconds, and plugging it back in.
If That Didn't Work
- Assign a Static IP Address: Use your router's web interface (usually 192.168.1.1 or 192.168.0.1) to assign a Reserved/Static IP to the printer's MAC address. When the printer's IP changes via DHCP, other devices on the network may "hunt" for it, sending repeated wake-up signals until the printer responds.
- Disable HP Smart Notifications: On your smartphone or PC, open the HP Smart app, go to Account Settings, and disable "Printer Status Notifications." These push notifications often trigger a cloud-to-printer handshake that wakes the device.
- Disable Windows "Fast Startup": On your PC, go to Control Panel > Power Options > Choose what the power buttons do > Change settings that are currently unavailable > Uncheck "Turn on fast startup." Windows Fast Startup often sends a "wake" signal to all USB and Network peripherals upon a background update or scheduled task.
- Physical Power Isolation: If the issue persists and is disrupting your sleep, use a physical power strip with an On/Off switch. Since the 7955e is designed to be "Always On" for the HP+ ecosystem, the only 100% effective way to stop network-induced wake-ups is to cut the AC power entirely when not in use.
Heads Up
- Firmware Updates: Be cautious with automatic firmware updates. While they often fix bugs, some updates reset your "Auto-Off" settings back to factory defaults. Always re-check your power settings after a firmware update.
- Ink Clogging: If you choose to completely cut power using a switch, be aware that the printer cannot perform its automatic print-head cleaning cycles. Ensure you print at least one page per week to prevent ink from drying in the nozzles.
- HP+ Requirements: Note that disabling certain network wake features may occasionally cause a "Printer Offline" status in the HP Smart app. You will simply need to tap the printer icon to wake it manually before sending a job.