HP LaserJet Enterprise M552 - Page 19

List of tables
Table 1-1 Sequence of operation .......................................................................................................................................... 5
Table 1-2 Motors ................................................................................................................................................................. 13
Table 1-3 Fans ..................................................................................................................................................................... 14
Table 1-4 Solenoids ............................................................................................................................................................ 14
Table 1-5 Clutches .............................................................................................................................................................. 14
Table 1-6 Switches .............................................................................................................................................................. 14
Table 1-7 Sensors ............................................................................................................................................................... 16
Table 1-8 Converted DC voltages ....................................................................................................................................... 19
Table 1-9 Low-voltage power supply functions ................................................................................................................. 20
Table 1-10 High-voltage power supply circuits ................................................................................................................. 21
Table 1-11 Fuser components ............................................................................................................................................ 23
Table 1-12 Low-voltage power supply functions ............................................................................................................... 24
Table 1-13 Motors ............................................................................................................................................................... 31
Table 1-14 Sensors ............................................................................................................................................................. 32
Table 1-15 Image formation process ................................................................................................................................. 33
Table 1-16 Primary-transfer roller engagement states .................................................................................................... 45
Table 1-17 Secondary transfer roller functions ................................................................................................................. 48
Table 1-18 Calibration functions ........................................................................................................................................ 49
Table 1-19 Photo sensors and switches ............................................................................................................................. 51
Table 1-20 Motors, clutches, and solenoids ....................................................................................................................... 53
Table 1-21 Print mode and feed speed .............................................................................................................................. 59
Table 1-22 Jams that the printer detects ........................................................................................................................... 61
Table 1-23 Trays 3-5 motor control ................................................................................................................................... 66
Table 1-24 Tray 3-5 electrical components ....................................................................................................................... 66
Table 1-25 Pickup feed components (1x550-sheet paper feeder) .................................................................................... 67
Table 1-26 Document feeder sensors ................................................................................................................................ 72
Table 1-27 Document feeder paper path ........................................................................................................................... 72
Table 2-1 Pre-boot menu options (1 of 7) .......................................................................................................................... 91
Table 2-2 Pre-boot menu options (2 of 7) .......................................................................................................................... 92
Table 2-3 Pre-boot menu options (3 of 7) .......................................................................................................................... 93
Table 2-4 Pre-boot menu options (4 of 7) .......................................................................................................................... 94
Table 2-5 Pre-boot menu options (5 of 7) .......................................................................................................................... 94
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