HP P Class 450/500/550/600/650/700/750 HP Visualize x- and p-Class (733,800, 8 - Page 20

Documentation Conventions Unless otherwise noted in the text, this guide uses the following symbolic conventions. user-supplied values Italic words or characters in syntax and command descriptions represent values that you must supply. Italics are also used in text for emphasis. screen display Enter Information that the system displays, commands that you must use literally, and path names appear in this typeface. Keycaps are presented with a special keycap font as shown in the left column. (In this document, we refer to the Enter key. On your keyboard, the key may be labeled either Enter or Return.) Electrostatic Discharge (ESD) Precautions Electrostatic charges can damage the integrated circuits on printed circuit boards. To prevent such damage from occurring, observe the following precautions during board unpacking and installation: • Stand on a static-free mat. • Wear a static strap to ensure that any accumulated electrostatic charge is discharged from your body to ground. • Create a common ground for the equipment you are working on by connecting the static-free mat, static strap, and peripheral units to that piece of equipment. • Keep uninstalled printed circuit boards in their protective antistatic bags. • Handle printed circuit boards by their edges, once you have removed them from their protective antistatic bags. 20