HP Deskjet 2540 All-in-One (A9U22A)
MFG Part Number: A9U22A
7ppm black, 4ppm color, USB 2.0, Wireless LAN
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Drive Assembly parts for A9U22A HP Deskjet 2540 All-in-One Printer
A9U22A-Drive_Assy
Drive Assembly - Paper drive roller kit - includes roller assembly, bushings, gear on roller, transmission gear kit, encoder disc, end thrust (axial) spring.
Deskjet 2540 All-in-One Printer parts list