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Service Guide
117
Cleaning Page (Phaser 840 printer only)
Under certain conditions, the printer purges its ink-jet nozzles to clear any jets
plugged with ink. When the purge is completed, the printer outputs a cleaning
page to clear the purge pattern from the print drum. Ink jets are purged under the
following conditions:
■
During warm-up from a power-off condition.
■
When the printer exits the Energy Star mode.
■
When customers initiate the
Eliminate Light Stripes
automatic
cleaning procedure from the front panel.
Vacuum
Vacuum dust from the top cover, the metal heat duct over the printhead and
plastic dust cover under the stripper fingers or rapid release guide.
Drum temperature sensor
With a dry swab, clean any buildup around the drum temperature sensor. You
can access the sensor through the opened exit cover. Also make sure the sensor
rides evenly on the drum surface. You can remove the sensor, if necessary, to
clean under it.
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 ...