Service Guide
xi
Figures
The Phaser 740/750 Color Printer 1
Print engine major components 10
Print engine components (continued) 11
Print engine sensor, switch and solenoid locations 12
Features of the image processor board 13
Features of the image processor board 14
The front panel 16
The Phaser 740 rear panel 19
The Phaser 750 rear panel 19
Tray switch sensors and actuators 21
Measuring the DC voltages (test points) 40
Door safety interlock switches 42
Troubleshooting print quality problems 54
Manual color correction reference print 85
The Calibrate for Paper test page 86
Removing cabinet covers 93
Removing cabinet covers 94
Removing the EMI shields 95
Removing the cartridge selector/eject unit 97
Removing the paper feeder 98
Removing the multi-purpose tray pick roller 99
Removing the cork separator pad 100
Removing the laser scanner and driver board 101
Removing the power supply 102
Removing the main motor, paper-feed motor, toner cartridge drive motor and cleaning
board 103
Removing the toner cartridge drive unit, home position sensor and the left door interlock
switch 104
Removing the temperature/humidity sensor board 105
Removing the pre-exposure lamp and pre-transfer lamp 105
Removing the gear train 106
Removing the tray guides 107
Removing the engine control board 108
Removing the high-voltage board 109
Removing the image processor board 110
Removing the image processor board 111
Cabinet FRUs 114
Cabinet FRUs 115
Motor and fan FRUs 117
Sensor, switch and flag FRUs 119
To Next Page
Loading...
General