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Service Guide
53
Oil streaks on print
Oil stains the edge of the print.
1.
Inspect the drum maintenance
drawer. Is the wiper blade
damaged? If necessary, replace the
drum maintenance drawer.
2.
Are the drum maintenance cam
roller and electric clutch operating
correctly? Test them using PC-
based diagnostics.
3.
Ensure the left and right drum
maintenance actuators operate
correctly when lifted by the cams
of the drum maintenance cam
roller.
Poor ink adhesion, poor image durability
1.
Verify the paper preheater temperature using PC-based diagnostics.
2.
The drum is too cold. Verify the drum temperature using PC-based
diagnostics. Ensure the drum temperature sensor is properly
positioned and has no contamination between it and the drum surface.
3.
Try a different paper, if a specialty coated paper is being used.
4.
The transfix spring pressure is incorrect. Perform the procedure
“Transfix roller pressure spring adjustment” on page 72.
0388-51
Summary of Contents for Phaser 840
Page 46: ...36 Phaser 840 Color Printer ...
Page 95: ...Service Guide 85 Clearing PostScript NVRAM menu item ...
Page 96: ...86 Phaser 840 Color Printer ...
Page 121: ...Service Guide 111 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 ...
Page 125: ...Service Guide 115 Figure 3 Paper path FRUs 0388 16 2 1 5 11 10 9 12 6 4 3 7 13 8 ...
Page 127: ...Service Guide 117 Figure 4 Motors and fans FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 129: ...Service Guide 119 Figure 5 Circuit boards FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 13 12 ...
Page 131: ...Service Guide 121 Figure 6 Solenoids and clutches FRUs 4 5 3 2 1 0388 23 ...
Page 137: ...Service Guide 127 Figure 9 High capacity PaperTray 0388 65a 1 2 ...
Page 142: ...132 Phaser 840 Color Printer ...
Page 154: ...144 Phaser 840 Color Printer ...