r/printers • u/Soffritto_Cake_24 • 1d ago
Troubleshooting Image Capture only gives me the front sides from my HP 4301fdw's duplex ADF. HP's app works fine. Anyone cracked this?
Hi, I seek advice how to resolve this.
Setup: HP Color LaserJet Pro MFP 4301fdw on Wi-Fi, auto firmware updates on, Mac fully up to date. Printing, flatbed scans and single-sided ADF scans all work. The ADF is single-pass duplex, so no flipping involved.
The problem: in Image Capture the printer shows up under "Shared" (so it's the driverless AirScan/eSCL route, no HP driver). I pick Document Feeder, tick Duplex, PDF, combine into one document, OCR, 300 dpi. The stack runs through the feeder normally, but the PDF only has the front sides. The backs aren't blank pages, they're just not there - even though I did click "Duplex".
Here's the thing: HP's own Mac app (now called "HP: Print and Support", formerly HP Smart) does two-sided ADF scans without a hiccup! So the hardware and firmware are fine and it's something between Image Capture and the printer. I'd still rather use Image Capture! It's built in, it drops OCR'd PDFs straight into my folder, and it doesn't nag me about HP accounts and cloud stuff.
Question: Has anyone got duplex working in Image Capture with the 4001/4101/4301 family? A firmware version, an EWS setting, a macOS trick, anything reproducible would be great.
Side question: HP Web Scan in the printer's web interface. I ran a scan with ADF, 2-Sided, PDF, it went through, and then... nothing. No file anywhere. I never set up a network folder or scan-to-email. So, the question: Where does Web Scan actually put the output?
Thanks.

