HP 5100 Service Manual - Page 113

Before you begin WARNING! WARNING! CAUTION Note Before you begin to service the printer, complete the following steps: 1 Turn off the printer. 2 Unplug the power cord from the power outlet. Severe injury can result if you attempt to service the printer while it is plugged into a power outlet. 3 Remove all paper-handling accessories (such as an optional duplexer and any optional trays) and interface cables from the printer. 4 Remove the toner cartridge and store it in a dark location. The toner cartridge should not be exposed to light for more than a few minutes. To avoid possible burns from the fuser, turn off the printer to allow the fuser to cool for 30 minutes before removing it from the printer. This printer has some sharp, sheet-metal edges that can cause injury. Avoid contact with the edges. Also, you might want to remove jewelry that might snag on parts inside the printer. Replacing printer parts Replacement is generally the reverse of removal. Occasionally, information is included that provides direction for difficult or critical replacement procedures. All references to the right and left are assumed to be relative to the front of the printer, as you face the front of the printer, unless otherwise specified. The printer contains parts that are sensitive to electrostatic discharge (ESD). Always service printers at ESD-protected workstations. To install a self-tapping screw, first turn it counterclockwise until it clicks, indicating that the threads are seated. Then, turn it clockwise to tighten it. Do not over-tighten the screw. If a self-tapping screw-hole becomes stripped, then repair of the screw-hole or replacement of the affected assembly is required. CAUTION CAUTION Removing loose toner Loose toner might be present inside the printer, on printer parts, or on the toner cartridge. If toner gets on your clothing, wipe it off with a dry cloth and wash the clothing in cold water. Hot water sets toner into fabric. Required tools
A Phillips #2 magnetized screwdriver (with a 6-inch shaft)
A small, flat-blade screwdriver
A small, needle-nosed pliers All screws used in field-replaceable printer components are Phillips-head screws that require a #2-size Phillips screwdriver. Using a Pozi-Driv screwdriver can damage screw-heads. Q1860-90918 6 Removing and replacing parts 111