HP ADF Assemblaggio rullo prelievo carta per Officejet 5740, 5742, 5744, 5745, 5746
For HP Officejet 5740, 5742, 5744, 5745, and 5746 printers. HP 7520 is a different printer, but has similar ADF Roller Unit. Video Title: "Taking Apart HP Photosmart 7520, 7510, 7525, 7515 Printer Disassembly".