HP OfficeJet Pro 8025e Wireless All-in-One Printer with 20 ppm, Smart Tasks, and Mobile Fax MECH-04 Error Fix: ADF Rollers Worn or Dirty

Error code MECH-04 on the HP OfficeJet Pro 8025e Wireless All-in-One Printer with 20 ppm, Smart Tasks, and Mobile Fax means: ADF Rollers Worn or Dirty. The automatic document feeder misfeeds, skews documents, or jams frequently — the ADF has its own set of pickup and separation rollers that accumulate dust and paper debris; open the ADF cover and clean the rollers with a lint-free cloth dampened with water; if the rollers are shiny and hard, they need replacement; the ADF feed pad (separation pad) also wears and should be checked when multi-page feeds occur

The most successful fix is "Replace Worn Imaging Drum via Cartridge Replacement" (medium difficulty, ~30 minutes). Estimated DIY cost: $100-$120. 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 Imaging Drum via Cartridge Replacement") is rated medium difficulty and takes about 30 minutes. Tools needed: .

DIY cost: $100-$120. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

The HP OfficeJet Pro 8025e Wireless All-in-One Printer with 20 ppm, Smart Tasks, and Mobile Fax has 8 other known error codes, including: ADF-JAM (Document Feeder Paper Jam), ALIGN-FAIL (Printhead Alignment Failed), E0 (Cartridge Access Door Open), E1 (No Paper in Input Tray), E2 (Paper Size Mismatch), and 3 more.

Error code MECH-04 also appears on 7 other HP models: DeskJet 4155e Wireless All-in-One Printer with Mobile Printing and 4800 x 1200 dpi Color Resolution, ENVY 6055e All-in-One Wireless Printer with Auto 2-Sided Printing and Smart App Integration, HP Color LaserJet Pro M255dw Wireless Color Laser Printer with Auto Duplex Printing and 22 ppm, 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, LaserJet M209dw Mono Wireless Printer with 30 ppm Print Speed and 1200 x 1200 dpi Resolution, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.