HP — HP LaserJet Enterprise MFP M725 - Troubleshooting Service Manual

List of tables Table 1-1 Operation sequence ............................................................................................................... 3 Table 1-2 Motor locations ...................................................................................................................... 7 Table 1-3 Fan locations ......................................................................................................................... 9 Table 1-4 Low voltage power supply DC power specifications ..................................................................

12 Table 1-5 Pickup, feed, and delivery system sensors and switches ............................................................. 34 Table 1-6 Pickup, feed, and delivery system solenoid and motors ............................................................. 36 Table 1-8 500-sheet paper feeder electrical components ......................................................................... 58 Table 1-7 Media switch combinations ................................................................................................... 39 Table 1-9 500-sheet paper feeder motors ..............................................................................................

59 Table 1-10 500-sheet paper feeder pickup and feed components ............................................................. 59 Table 1-11 500-sheet paper feeder media switch combinations ................................................................ 61 Table 1-12 Paper deck electrical components ......................................................................................... 67 Table 1-13 Paper deck motors .............................................................................................................. 69 Table 1-14 Paper deck pickup-and-feed operation components ................................................................

70 Table 1-15 Paper deck media switch combinations ................................................................................. 71 Table 1-16 HCI electrical components ................................................................................................... 76 Table 1-17 HCI motors ........................................................................................................................ 77 Table 1-18 HCI pickup-and-feed operation components ........................................................................... 78 Table 1-19 Duplexer electrical components ............................................................................................

85 Table 1-20 Duplexer motor .................................................................................................................. 86 Table 1-21 Duplexer fan ...................................................................................................................... 87 Table 2-1 Preboot menu options (1 of 6) .............................................................................................. 115 Table 1-22 Duplexer reverse-and-feed components .................................................................................. 88 Table 2-2 Preboot menu options (2 of 6) ..............................................................................................

117 Table 2-3 Preboot menu options (3 of 6) .............................................................................................. 118 Table 2-4 Preboot menu options (4 of 6) .............................................................................................. 119 Table 2-6 Preboot menu options (6 of 6) .............................................................................................. 120 Table 2-5 Preboot menu options (5 of 6) .............................................................................................. 119 Table 2-7 Troubleshooting flowchart ....................................................................................................

122 Table 2-8 Heartbeat LED, status .......................................................................................................... 134 Table 2-9 Paper-path sensors .............................................................................................................. 139 Table 2-10 Manual sensor tests .......................................................................................................... 140 ENWW xxiii