Paper trays ...................................................................................................................... 123 Printing from Tray 1 ......................................................................................... 123 Printing from Tray 2 ......................................................................................... 123 Formatter system ............................................................................................................. 123 Sleep mode .....................................................................................................
124 Resolution Enhancement technology .............................................................. 124 EconoMode ..................................................................................................... 124 Input/output ..................................................................................................... 125 USB ................................................................................................ 125 Embedded print server ................................................................... 125 Expanded I/O ..................................................................................
125 Hard-disk accessory ....................................................................... 125 CPU ................................................................................................ 125 Product memory .............................................................................................. 125 Read-only memory ......................................................................... 125 Random-access memory ................................................................ 125 DIMM slot ....................................................................................... 125 Nonvolatile memory ........................................................................
126 Memory Enhancement technology ................................................. 126 PJL overview ................................................................................................... 126 PML ................................................................................................................. 126 Control panel ................................................................................................... 126 6 Removal and replacement Removal and replacement strategy .................................................................................................
128 Warnings, cautions, notes, and tips ................................................................................. 128 Electrostatic discharge ..................................................................................................... 128 Required tools ................................................................................................................. 129 Service approach ............................................................................................................................. 130 Before performing service ................................................................................................
130 After performing service ................................................................................................... 130 Post-service tests ............................................................................................................ 131 Test 1 (print-quality test) ................................................................................. 131 Types of screws ............................................................................................................... 132 Parts removal order .........................................................................................................
133 Product input trays and cabinet wheel locks .................................................................... 134 DC controller diagram ...................................................................................................... 135 User-replaceable parts .................................................................................................................... 137 Print cartridge .................................................................................................................. 137 Memory DIMM .................................................................................................................
139 Tray 2 ............................................................................................................................... 140 Tray 2 separation, pickup, and feed rollers ...................................................................... 141 Transfer roller ................................................................................................................. 143 ENWW vii