HP LaserJet 4 Service Manual - Page 3

Conventions This manual uses the following conventions: Unless specifically stated otherwise, information applies to all seven printer models (LaserJet 4/4 Plus/4 M/4 M Plus/5/5 M/5 N). Most procedures are combined for all printers, except where they differ substantially. Color is used to emphasize items which are important to the material under discussion. The names of major printer parts and assemblies are Capitalized. Bold is used for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis. COMPUTER type indicates text as seen on a computer monitor. DISPLAY type indicates text as seen on the printer's 16 character LCD display panel (LaserJet 4Plus/4MPlus only). [KEYFACE] indicates keys on a computer keyboard or on the printer's control panel. Examples include [Enter], [On Line] and Go. Note Notes contain important information set off from the text. C A U T I O N Caution messages alert you to the possibility of damage to equipment or loss of data. W A R N I N G ! Warning messages alert you to the possibility of personal injury. i