70
Phaser 840 and 850 Color Printers
Scratches parallel to the long axis of printing, particularly with film
Usually caused by foreign debris in the
paper path. The scratch extends into
non-printed areas.
1.
Run a transparency through the
manual feed to see if the scratch
appears on the print. If it does not,
the scratch occurred in the paper
pick and early transport of the
transparency film.
2.
A scratch or smear can be caused
by debris built up on the paper
preheater heating surfaces. Run
the front panel cleaning procedure
Remove Ink smears
. Force a sheet
of thick 65- to 80-lb. paper through
the paper preheater to “buff” the
paper preheater heating surfaces.
With the leading and trailing ends
of the sheet of paper extending
from the entry and exit of the paper
preheater, gently pull the sheet of
paper back and forth several times
and then remove the sheet of paper.
Be careful of the paper-sensor flags.
3.
Clean the stripper fingers or the rapid release guide.
Printing too light or too dark
1.
Make sure the printer is correctly reading the type of tray installed and
that the tray is correctly set for the media loaded in it. Printing on paper
in transparency mode significantly darkens a print. Try a different color
correction setting.
2.
Perform the procedure, “Printhead-to-drum spacing adjustment
(Phaser 840 printer)” on page 102.
3.
Verify that the printhead setting “Head Adjust,” in the hidden service
menu is set to 128.
0388-68
Содержание Phaser 840
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Страница 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
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Страница 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Страница 168: ...Service Guide 157 Figure 2 Imaging FRUs 4 2 3 6 5 7 8 11 9 13 15 17 16 12 14 1 2 0388 79 18 10 19 ...
Страница 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 ...
Страница 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Страница 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 ...
Страница 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Страница 178: ...Service Guide 167 Figure 7 Gear and belt FRUs 0388 22 9 7 3 4 2 13 15 11 5 10 6 14 12 16 17 18 19 1 8 ...
Страница 180: ...Service Guide 169 Figure 8 Sensor and flag FRUs 0388 15 7 3 2 1 4 5 9 8 10 16 12 17 14 18 19 6 11 13 15 ...
Страница 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...
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