46
Phaser 780 Color Printer
Monochrome prints
No color is present in a color print, only the black layer is printed. The printer
displays no error code. In some cases, depending on the nature of the failure,
only a portion of the print may be monochrome while the remainder of the print
is in color.
1.
Check the accumulator belt cleaner for correct installation. The cleaning
blade may be in constant contact with the accumulator belt, scraping off
each layer of color toner soon after it is transferred.
2.
Inspect the cleaner cam guides and holders located at the front and back of
the fuser assembly. Are the cleaner cam holders seated properly? If not,
reseat them as necessary.
3.
Manually actuate the cleaner cam solenoid and rotate the fuser input gear
to cycle the cleaner cam through its cycle of operation. Does the cleaner
cam operate the cleaner cam guides properly? If not, replace the fuser
assembly.
4.
Replace the accumulator belt cleaner.
3041-38
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 ...