HP LaserJet Pro M402d - Page 15

List of tables
Table 1-1 Sequence of operation .......................................................................................................................................... 4
Table 1-2 Motors ................................................................................................................................................................... 8
Table 1-3 Fans ....................................................................................................................................................................... 8
Table 1-4 List of DC voltages ................................................................................................................................................ 9
Table 1-5 Low-voltage power supply functions ................................................................................................................. 10
Table 1-6 High-voltage power supply circuits .................................................................................................................... 12
Table 1-7 Fuser components .............................................................................................................................................. 13
Table 1-8 Fuser control functions ...................................................................................................................................... 14
Table 1-9 Sensors ............................................................................................................................................................... 20
Table 1-10 Image formation process ................................................................................................................................. 21
Table 1-11 Toner cartridge functions ................................................................................................................................. 26
Table 1-12 Pickup, feed, and delivery system functions ................................................................................................... 28
Table 1-13 Photo sensors and switches ............................................................................................................................. 30
Table 1-14 Motors, solenoids, and clutches ....................................................................................................................... 31
Table 1-15 Jams that the printer detects ........................................................................................................................... 32
Table 1-16 Electrical component list, paper feeder ........................................................................................................... 36
Table 1-17 Motors, paper feeder ........................................................................................................................................ 36
Table 1-18 Electrical components, pickup and feed .......................................................................................................... 37
Table 1-19 Other functions, paper feeder .......................................................................................................................... 37
Table 2-1 DC controller connectors .................................................................................................................................... 53
Table 2-2 Paper feeder controller PCA connectors ............................................................................................................ 54
Table 2-3 M402, M403 external plugs and ports ............................................................................................................... 54
Table 2-4 M426, M427 external plugs and ports ............................................................................................................... 55
Table 2-5 Major components (printer base) ....................................................................................................................... 56
Table 2-6 Motor and fan (printer base) .............................................................................................................................. 57
Table 2-7 Rollers and pads (printer base) .......................................................................................................................... 58
Table 2-8 Main PCAs (printer base) ..................................................................................................................................... 59
Table 2-9 Repetitive defects ............................................................................................................................................... 66
Table 2-10 Event-log messages (X=0: black cartridge) ..................................................................................................... 97
Table 2-11 Fax event log codes ........................................................................................................................................ 100
Table 2-12 Print quality examples ................................................................................................................................... 143
Table 2-13 Secondary Service menu ................................................................................................................................ 162
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