HP Officejet 4634 e-All-in-One (D4J78B)
MFG Part Number: D4J78B
8ppm black, 5ppm color, 1200 x 600 DPI, 1 USB 2.0;Wireless 802.11b/g/n
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ADF Sensor Board parts for D4J78B HP Officejet 4634 e-All-in-One Printer
D4J78B-ADF_Sensor_BRD
ADF Sensor Board - ADF sensor pc board assembly - narrow strip pc board with the two document skew sensors, registration sensor, and timing sensor - mounts on top of the registration guide assembly in the ADF main assembly
Officejet 4634 e-All-in-One Printer parts list