HP 4550 Service Manual - Page 190
Paper pick solenoid (SL2), To remove the paper pick solenoid, Replacement tip
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CAUTION Paper pick solenoid (SL2) To remove the paper pick solenoid 1 Remove the top cover. 2 Remove the left side cover. 3 Disconnect the solenoid connector (J106) from the paper feed PCB, and free the cable from the cable stays. Note the cable path when removing the cable. 4 Remove the screw (callout 1) and e-clip (callout 2) that hold the solenoid assembly in place, and then remove the solenoid assembly. For HP Color LaserJet 4500 printers with serial numbers xxH or higher and HP Color LaserJet 4550 printers, also remove the screw shown in callout 3 to remove the solenoid assembly. Replacement tip When reinstalling the solenoid assembly, make sure that the flat parts of the Tray 2 pickup rollers are down and that the plastic spring-loaded gear is fully engaged. 3 1 2 Figure 6-50 Paper pick solenoid removal and replacement 188 Removal and replacement C7085-90921