To access the embedded Web server using a network connection .................. 52 Information tab ................................................................................................... 52 Settings tab ........................................................................................................ 53 Networking tab ................................................................................................... 53 Other links in HP ToolboxFX ..............................................................................
53 4 Operational theory Engine control system ......................................................................................................................... 56 Basic sequence of operation .............................................................................................. 56 Power-on sequence ............................................................................................................ 57 Motors and fans .................................................................................................................. 57 Main motor failure detection ...............................................................................
58 Fan motor failure detection ................................................................................ 58 Image formation system ...................................................................................................................... 59 Image formation process .................................................................................................... 61 Latent image formation ...................................................................................... 62 Laser/scanner system ........................................................................................
63 Developing stage ................................................................................................................ 63 Print cartridge ..................................................................................................... 64 Transfer belt (ETB) ............................................................................................. 65 Transfer stage ..................................................................................................................... 66 Separation stage .................................................................................................................
67 Fusing stage ....................................................................................................................... 67 Pickup and feed system ...................................................................................................................... 69 Manual feed slot pickup mechanism .................................................................................. 71 Paper feed mechanism ....................................................................................................... 71 Skew correction by the registration shutter ........................................................................
71 Jam detection ...................................................................................................................... 72 Solenoid, motor, and fan locations ..................................................................................... 73 Printed circuit assembly locations ....................................................................................... 73 250-sheet tray solenoid and printed circuit locations ......................................................... 74 Duplexing mechanism ........................................................................................................
75 Service-only tools (SERVICE ONLY) .................................................................................................. 80 General timing chart ............................................................................................................ 80 Printer calibration ................................................................................................................ 81 5 Removal and replacement Overview ..............................................................................................................................................
84 Service approach ................................................................................................................................. 85 Pre-service procedures ....................................................................................................... 85 Removal and replacement procedures ............................................................................................... 86 Print cartridge replacement ................................................................................................. 86 ETB removal and replacement ...........................................................................................
89 Fuser removal and replacement ......................................................................................... 97 Formatter removal and replacement ................................................................................ 105 DC controller removal and replacement ........................................................................... 108 Separation assembly removal and replacement .............................................................. 111 Paper-pickup roller removal and replacement ..................................................................
112 Control panel removal and replacement ........................................................................... 114 Memory-card assembly removal and replacement .......................................................... 119 ENWW v