64
Phaser 840 and 850 Color Printers
Media jams and the paper path
Jams fall into the following four categories:
■
Media-based problems
■
Paper-pick errors
■
Paper-feeding errors
■
Paper-ejecting errors
Media-based problems
1.
Check that the correct type of media is being used.
2.
Inspect the paper for bent, torn or folded corners. Check for stuck
sensor flags.
3.
Check to ensure no small pieces of paper are in the paper path.
4.
Ensure that the correct media is in the correct media tray. The tray
switch actuators indicate the size and the type of media loaded in the
tray; the printer does not directly sense the size or type of media.
5.
Ensure the correct weight of paper is being used. Refer “Specifications”
on page 24 or the built-in embedded page, “Paper Tips.”
6.
Ensure that envelopes are of the acceptable size and orientation with
the side-flap up.
Paper-pick errors
Paper-pick errors occur when the media in the media tray mispicks or the printer
double-picks two or more sheets of paper.
1.
In humid environments, keep media sealed in packaging until it is
needed for printing. Flip over the media in the tray
2.
Ensure that the media fits properly in the tray. With the left edge of the
stack of paper flush against the tray rail, there should be a small gap
between the opposite edge of the stack of paper and the opposite side
rail.
3.
Clean the interior of the media tray. When installing paper, push down
the stack of paper until the tray's lift-plate locks to the bottom of the
tray. This prevents the top sheet of paper from being mis-positioned as
the tray is inserted in the printer.
4.
Hi-Capacity Paper Tray Assembly.
Ensure the pick roller is installed
correctly. (It can inadvertently be installed backwards.)
Required tools
■
TORX screwdriver and tips
■
Digital multi-meter
Summary of Contents for Phaser 840
Page 11: ...xii Phaser 840 and 850 Color Printers ...
Page 65: ...54 Phaser 840 and 850 Color Printers ...
Page 101: ...90 Phaser 840 and 850 Color Printers ...
Page 125: ...114 Phaser 840 and 850 Color Printers ...
Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
Page 135: ...124 Phaser 840 and 850 Color Printers ...
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 ...