Service Guide
133
Image processor
1.
Disconnect all interface cables connecting to the image processor.
2.
Remove the right cover.
3.
Disconnect all wiring harnesses from the image processor.
4.
Remove the 10 screws securing the image processor to the image
processor chassis. Pull the image processor away from the chassis,
disconnecting the image processor from the engine control board.
Swap components.
If you are replacing the image processor board,
exchange:
■
The Boot ROM (PLCC)
■
The NVRAM chip (DIP)
■
The Real Time Clock module
The components contains important customer-created parameters. The printer
may not operate correctly without the components being swapped.
Also transfer from the old board to the new board.
■
The RAM DIMMs
■
The PhaserShare card
■
The SCSI card
Removing the image processor
Front plate
Image processor
Summary of Contents for Phaser 780 Color
Page 6: ......
Page 32: ...18 Phaser 780 Color Printer ...
Page 90: ...76 Phaser 780 Color Printer ...
Page 94: ...80 Phaser 780 Color Printer ...
Page 117: ...Service Guide 103 Removing the developer tie plate 780 5 82 Wire clamp Developer tie plate ...
Page 125: ...Service Guide 111 Removing the laser unit Laser unit Laser cover 780 5 47 ...
Page 150: ...136 Phaser 780 Color Printer ...
Page 156: ...142 Phaser 780 Color Printer Multi purpose tray cover FRUs 780 5 121 3 1 4 2 5 ...
Page 158: ...144 Phaser 780 Color Printer Multi purpose tray FRUs 1 4 2 3 7 6 5 8 9 780 5 122 11 12 13 10 ...
Page 160: ...146 Phaser 780 Color Printer Paper feeder cover FRUs 780 5 123 1 2 3 ...
Page 162: ...148 Phaser 780 Color Printer Paper feeder FRUs 1 2 3 5 4a 4b 6 7 780 5 124 ...
Page 164: ...150 Phaser 780 Color Printer Imaging FRUs 1 2 3 4 5 6 7 780 5 125 ...
Page 166: ...152 Phaser 780 Color Printer Developer FRUs 780 5 126 1 1 1 2 2 2 3 3 3 4 4 4 ...
Page 168: ...154 Phaser 780 Color Printer Carousel FRUs 4c 4d 5 4b 4a 3 2 1 780 5 127 6 ...
Page 172: ...158 Phaser 780 Color Printer Fuser assembly FRUs 1 2 3 780 5 129 4 ...
Page 174: ...160 Phaser 780 Color Printer Paper exit FRUs 780 5 130 1 2 3 3 3 3 3 ...
Page 178: ...164 Phaser 780 Color Printer Drive FRUs 780 5 132 1 2 3 4 6 5 9 8 7a 7d 7c 7c 7b ...
Page 182: ...168 Phaser 780 Color Printer Electronics front FRUs 780 5 134 2 4 5 6 3 8 9 7 1 10 ...
Page 184: ...170 Phaser 780 Color Printer Image processor FRUs 780 5 135 1 2 3 6 5 4 7 8 9 12 10 11 ...
Page 198: ...184 Phaser 780 Color Printer ...
Page 233: ...Service Guide 21 ...
Page 234: ...220 Phaser 780 Color Printer ...