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 1-7High-voltage power supply circuits

10

Table 1-8 Converted DC voltages

12

Table 1-9

Fuser components

14

Table 1-10Primary-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 3-7Paper-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

ENWW

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HP Enterprise CC490A manual List of tables