HP 4300 Service Manual - Page 233
CAUTION, Reinstall note, When you install the tray drive gears and shaft
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CAUTION Some gears are not captive when the paper-pickup assembly is removed. They can easily slide off of the shafts and be lost. Also, the solenoid is not captive when the paper-pickup assembly is removed. 8. Remove five screws (callout 10). Pull the paper-pickup gear assembly away from the chassis and remove it. 170 Figure 179. 500-sheet feeder paper-pickup drive assembly (7 of 7) Reinstall note When you install the tray drive gears and shaft, verify that the gears are seated on the shaft locking bars and that the shaft collars are positioned correctly in the lower gear assembly mounting bracket and 500-sheet feeder chassis. Locking bar Inner tray-drive gear Shaft collar E-clip retainer Figure 180. Shaft collar 500-sheet feeder paper-pickup drive gear The large gear inside of the paper-pickup assembly is not captive and will slide off of the shaft and be loose inside the paper-pickup assembly when the tray drive-gear/shaft is removed. Q2431-90912 Chapter 6 Removing and replacing parts 213
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