Diagnosis
The "Processing" status on the HP DeskJet 2855e typically indicates a communication breakdown between the Windows or macOS print spooler and the printer's internal volatile memory (RAM). This happens when a print job contains a corrupted page description language (PDL) command or a file size that exceeds the printer's limited onboard buffer. Because this is a budget-friendly home model, it lacks a robust internal hard drive, meaning it relies entirely on the computer to "feed" it data; if that stream is interrupted or corrupted, the printer enters a loop waiting for data that will never arrive. You can confirm this is a spooler issue if the printer's status light is blinking or if the "Processing" message remains on your computer screen even after you have physically turned the printer off and back on. In these cases, the problematic job is stored in the computer's system folder (the spooler), and the moment the printer reconnects to the Wi-Fi, the computer automatically pushes the corrupted file back to the device, recreating the hang.
How to Fix It
To fully clear a stuck queue, you must purge the system spooler on your computer before resetting the hardware. Follow these exact steps for Windows:
- Type services.msc in the Windows Search bar and press Enter.
- Scroll down to find Print Spooler. Right-click it and select Stop.
- Open File Explorer and navigate to
C:\Windows\System32\spool\PRINTERS. - Delete every file inside this folder (these are the stuck .SHD and .SPL files). If prompted for Administrator permission, click Continue.
- Return to the Services window, right-click Print Spooler, and select Start.
- Physically power cycle the DeskJet 2855e: Unplug the power cord from the back of the printer and the wall outlet. Wait exactly 30 seconds to allow the capacitors to discharge.
- Plug the printer back in and wait for the wireless light to turn solid blue.
If That Didn't Work
- Hard Reset via Power Button: While the printer is powered on, unplug the power cord from the back of the unit. While unplugged, press and hold the Power button for 15 seconds. Plug it back in. This clears the temporary cache that a standard "off/on" switch doesn't touch.
- HP Smart App Queue Purge: Open the HP Smart app on your mobile device or PC. Go to Printer Settings > Advanced Settings. This opens the Embedded Web Server (EWS). Look for the Jobs or Queue tab and select Cancel All Jobs. This sends a direct command to the printer's firmware to wipe its memory.
- Network IP Conflict: If the job is stuck because the printer's IP address changed (DHCP lease expired), the computer is sending data to a "ghost" address. Turn off your router for 10 seconds, turn it back on, and then restart the printer. This forces a new handshake between the 2855e and your gateway.
- Driver Re-installation: If the "Processing" error recurs with every single document, your driver is corrupted. Uninstall the HP Smart app and the HP printer drivers from the Control Panel, restart your PC, and perform a clean installation of the HP Easy Start software.
Heads Up
- Avoid "Print to PDF" then Print: Printing a PDF by opening it in a browser and clicking print often creates complex layers that crash the 2855e. Always save the PDF to your desktop and open it with a dedicated reader (like Adobe) before printing.
- Instant Ink Sync: If you are using the Instant Ink trial, ensure your printer is connected to Wi-Fi. If the printer cannot "check-in" with the HP servers to verify your subscription, it may pause print jobs and show as "Processing" while it attempts to authenticate.
- Paper Tray Alignment: Ensure the paper guides are snug against the stack. If the printer detects a slight misalignment or a "paper out" condition that isn't triggering a full error light, it may hang in a processing state while waiting for a sensor trigger.