Description
Compatible Models: HP DeskJet Ink Advantage 3545, 4515, 4535, 4600 series, 4615, 4650, 5075, 5085, 6075, HP Envy 4500 / 5530 e-All-in-One, and HP Officejet 4630 / 4650 All-in-One printers.
What It Is: The Carriage PCB (678 Carriage Unit Assembly / 678 CPCA) - the moving carriage that holds the print head and its onboard circuit board, and travels left-to-right during printing. A "carriage jam" error, a printer that won't print, ink smudging, or a print head that isn't recognized (common on this HP 678-cartridge printer family) all point to a failing carriage PCB.
Part Number: A9T80-80001 / A9T80-60003.
Condition: Refurbished Original / Pulled Original - professionally tested and working.
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.