HP Color LaserJet Enterprise CP4020 - Page 19

List of tables
Table 1-1 Sequence of operation ....................................................................................................................... 3
Table 1-2 Solenoids ........................................................................................................................................... 5
Table 1-3 Switches ............................................................................................................................................. 6
Table 1-4 Sensors .............................................................................................................................................. 7
Table 1-5 Motors ................................................................................................................................................ 8
Table 1-6 Fans ................................................................................................................................................... 9
Table 1-7 High-voltage power supply circuits ................................................................................................... 10
Table 1-8 Converted DC voltages .................................................................................................................... 12
Table 1-9 Fuser components ........................................................................................................................... 14
Table 1-10 Primary-transfer-roller engagement states ..................................................................................... 32
Table 1-11 Image-stabilization controls ............................................................................................................ 36
Table 1-12 Switches and sensors for the pickup, feed, and delivery system ................................................... 38
Table 1-13 Motors and solenoids for the pickup, feed, and delivery system ................................................... 39
Table 1-14 Print mode and feed speed ............................................................................................................ 48
Table 1-15 Paper sizes .................................................................................................................................... 53
Table 1-16 Jams that the product detects ........................................................................................................ 56
Table 1-17 Electrical components for the paper feeder ................................................................................... 59
Table 1-18 Pickup feed components (1 x 500-sheet paper feeder) ................................................................. 60
Table 3-1 Pre-troubleshooting checklist ......................................................................................................... 237
Table 3-2 Troubleshooting flowchart .............................................................................................................. 239
Table 3-3 Manual sensor diagnostic tests ...................................................................................................... 246
Table 3-4 Default state of bits ........................................................................................................................ 246
Table 3-5 Manual sensor test 2 diagnostic tests ............................................................................................ 259
Table 3-6 Default state of bits ........................................................................................................................ 260
Table 3-7 Paper-path sensors diagnostic tests .............................................................................................. 273
Table 3-8 Component test details .................................................................................................................. 274
Table 3-9 Formatter PCA ............................................................................................................................... 280
Table 3-10 DC controller connectors .............................................................................................................. 281
Table 3-11 Controller PCA connectors ........................................................................................................... 283
Table 3-12 Important information on the configuration pages ........................................................................ 311
Table 3-13 Embedded Jetdirect menu ........................................................................................................... 334
Table 3-14 Control-panel messages .............................................................................................................. 345
Table 3-15 Common causes of jams (by area) .............................................................................................. 385
Table 3-16 Causes and solutions for delivery delay jam ................................................................................ 394
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