Service Guide
33
Install
Magenta
Toner
Cartridge
The magenta toner cartridge is either
not installed or not installed correctly.
The engine control board did not receive
a signal from the cartridge sensor when
the carousel frame moved the magenta
developer housing into position.
1.
Reseat the magenta toner
cartridge. Power cycle the
printer
2.
Replace the magenta toner
cartridge
3.
Replace the toner cartridge
presence sensor.
Install Yellow
Toner
Cartridge
The yellow toner cartridge is either not
installed or not installed correctly. The
engine control board did not receive a
signal from the cartridge sensor when
the carousel frame moved the yellow
developer housing into position.
1.
Reseat the yellow toner
cartridge. Power cycle the
printer
2.
Replace the yellow toner
cartridge
3.
Replace the toner cartridge
presence sensor.
4.
Replace the engine control
board.
Install Waste
Cartridge
The waste toner box is not installed. The
engine control board detected that the
waste toner box sensor was deactuated.
1.
Reseat waste cartridge
2.
Power cycle the printer
3.
Test the waste toner sensor
4.
Check the sensor wiring
5.
Replace the sensor
6.
Replace the engine control
board
Install
Tray 1
The engine control board did not detect
a paper tray installed in Tray 1 slot.
1.
Reseat the tray into the main
feeder slot
2.
Inspect the tray’s switch
actuators for damage
3.
Replace the paper size
sensor assembly
4.
Replace the engine control
board
Install
Tray 2
The engine control board did not detect
a Paper Tray installed in Tray 2 slot.
1.
Reseat the tray into the
second feeder slot
2.
Inspect the tray’s switch
actuators for damage
3.
Replace the paper size
sensor assembly
4.
Inspect the lower
feeder-to-printer connections
at the back of the printer.
5.
Replace the engine control
board
Error code
and
message
Description
Corrective action
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 ...