HP DeskJet 4155e Wireless All-in-One Printer with Mobile Printing and 4800 x 1200 dpi Color Resolution E4 Error Fix: Paper Jam

Error code E4 on the HP DeskJet 4155e Wireless All-in-One Printer with Mobile Printing and 4800 x 1200 dpi Color Resolution means: Paper Jam. Paper is jammed inside the printer in the feed path, output area, or duplex unit — turn the printer off and carefully remove any visible jammed paper by pulling gently in the direction of the paper path (pulling against the normal feed direction can tear the paper and leave fragments inside); check the input tray, output tray, and rear access door; for duplex-capable models also check the rear duplex unit; use a flashlight to look for small torn pieces of paper left behind; paper jams that recur frequently indicate worn or dirty feed rollers

The most successful fix is "Replace Worn Feed Rollers to Prevent Recurring Paper Jams" (medium difficulty, ~45 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Replace Worn Feed Rollers to Prevent Recurring Paper Jams") is rated medium difficulty and takes about 45 minutes. Tools needed: Phillips screwdriver #1, Plastic pry tool.

DIY cost: $15-$25. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The HP DeskJet 4155e Wireless All-in-One Printer with Mobile Printing and 4800 x 1200 dpi Color Resolution has 8 other known error codes, including: E0 (Cartridge Access Door Open), E1 (No Paper in Input Tray), E2 (Paper Size Mismatch), E3 (Carriage Jam), E5 (Scanner Failure), and 3 more.

Error code E4 also appears on 4 other HP models: ENVY 6055e All-in-One Wireless Printer with Auto 2-Sided Printing and Smart App Integration, HP OfficeJet Pro 9015e All-in-One Wireless Inkjet Printer with Auto 2-Sided Printing, 35-Page ADF, Fax, and 22 ppm, HP Smart Tank 7001 All-in-One Wireless Ink Tank Printer with Auto Duplex, ADF, and Refillable Ink System, OfficeJet Pro 8025e Wireless All-in-One Printer with 20 ppm, Smart Tasks, and Mobile Fax. The fix may vary by model, so check each model's specific page for tailored repair steps.