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Phaser 840 and 850 Color Printers
5: Big bands Handfeed OHP
.
This print allows you to evaluate
transparency printing as well as manual
feeding. It prints two prints, one with
primary color fills and one with secondary
color fills and a band of 50% blue, as this
is a popular background for overhead
transparencies.
Look for
: Uniformity of fill with no
scratching. Evaluate the print on an
overhead projector. Some print artifacts
visible on the print do not show when
projected. Likewise, some defects do not
show until projected.
Causes:
The ink drops from the jets are
traveling in incorrect trajectories. The
printhead is incorrectly mounted or its
printhead-to-drum spacing is incorrect.
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Summary of Contents for Phaser 840
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Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
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Page 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Page 170: ...Service Guide 159 Figure 3 Paper path FRUs 0388 80 2 1 5 11 10 9 12 6 4 3 7 13 8 11a 11b ...
Page 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 174: ...Service Guide 163 Figure 5 Circuit board FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 81 12 7a ...
Page 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Page 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...