Description
Compatible Models: HP Smart Tank 670, 675, 660, 720, 750, 755, 790 Wi-Fi All-in-One Printers.
What It Is: The Door Sensor / Paper Pickup Sensor (also sold as the Sensor PCB or PCA Label Circuit) - a small optical/mechanical sensor board that detects whether paper is loaded in the input tray and whether the top cover or ink-tank door is closed. A faulty sensor here causes a false 'out of paper' or 'open the cover/door' error even when paper is loaded and everything is closed properly.
Part Number: 1KR57-60051.
Condition: Tested and working - specific condition grade not stated in the source listing.
Warranty: 30-Day Replacement Warranty from date of delivery.
Why Buy From Max Printer Parts: We stock hard-to-find spare parts for HP, Canon, Epson and Brother ink-tank all-in-one printers, sourced and checked before they ship. Message us your exact model and part number before ordering and our team will confirm fitment.
Note: This entire listing is a byte-for-byte duplicate of batch 23's Products_17.xlsx (identical title, description and image) - this whole upload (all 30 rows) matches batch 23 exactly, the first time an entire batch has turned out to be a 100% duplicate of the immediately preceding one. Reused batch 23's suggested content verbatim.