HP 4600 Service Manual - Page 190
Introduction, Repair notices, Caution regarding electrostatic discharge (ESD), Required tools - printer parts
UPC - 808736060875
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Introduction This chapter explains how to remove and replace major printer components. (HP does not support repairing individual subassemblies or troubleshooting to the component level.) This chapter includes exploded-view illustrations of the printer and paper-handling accessories. If an assembly or part does not have a reference number in the illustration and is not listed in the parts list, it is not a field replaceable unit (FRU). Replacement is generally the reverse of removal. Occasionally, directions for difficult or critical replacement procedures are included. WARNING! The information in this section is intended for authorized service personnel only. Repair notices WARNING! Turn the printer off, wait five seconds, and then unplug the power cord before servicing the printer. Failure to completely disconnect the printer can result in severe injury. Never operate or service the printer with the protective cover removed from the laser/scanner assembly. The reflected beam, although invisible, can damage your eyes. Never operate the printer with any parts removed. The sheet-metal parts can have sharp edges. Be careful not to cut yourself when handling sheet-metal parts. Caution regarding electrostatic discharge (ESD) The printer contains parts that are sensitive to electrostatic discharge (ESD). Watch for the ESD reminder when removing printer parts. Protect the PCA parts with protective ESD pouches. Always use an ESD protected work station when servicing the printer or paper-handling accessories. If an ESD work station is not available, ground yourself to discharge body static by touching the metal chassis of the printer or accessory. Required tools Before servicing the printer, gather the following tools: ■ Phillips #2 magnetized screwdriver (152-mm [6-inch] shaft) ■ Small flat-blade screwdriver ■ Small needle-nose pliers ■ ESD strap ■ Penlight (optional) 174 Chapter 6 Removal and replacement ENWW