HP LaserJet 4v/mv Service Manual - Page 96
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CAUTION Required Tools • #2 Magnetized Phillips Screwdriver (6-inch shaft) • #2 Stubby Magnetized Phillips Screwdriver (1-inch shaft) • Small flat-blade Screwdriver • Small Pair Needle Nose Pliers All screws used in field-replaceable printer components are Phillips head screws which require a #2 size Phillips screwdriver. Figure 6-1 shows the difference between a Phillips and a Pozidriv screwdriver. Note that the Phillips tip has more beveled surfaces. A Posidriv screwdriver will damage the screw heads. Use Phillips only. Figure 6-1 NOTE CAUTION Phillips Phillips vs. Posidriv Screwdrivers Posidriv See Chapter 8 for a table listing screws and other common hardware used in the printer. To install a self-tapping screw, first turn it counter-clockwise to align it with the existing thread pattern, then carefully turn clockwise to tighten. Do not over-tighten. If a self-tapping screw-hole becomes stripped, repair of the screw-hole or replacement of the affected assembly is required. 6-4 Removal and Replacement