38
Phaser 840 Color Printer
If the printhead is in the cap/wipe/purge position:
a.
The heaters in the printhead and cap/wipe/purge assembly are
activated to melt the ink “gluing” them together.
b.
The printhead is tilted back.
c.
The ink is allowed to drain from the cap/wipe/purge assembly.
d.
The cap/wipe/purge assembly is lowered to its home position.
e.
A short wipe is performed and the cap/wipe/purge assembly is
returned to its home position.
f.
The process motor is rotated to tilt the printhead forward (if not
already forward), rotate all the rollers to their ready positions,
disengage the transfix roller, and lower the maintenance drawer
blade and wiper.
g.
The printhead is moved to its X-axis home position and then
centered.
If the printhead is in the print position but the cap/wipe/purge
assembly is in some unknown intermediate position:
a.
If the cap/wipe/purge assembly is not detected in its home
position, then the heaters in the printhead and cap/wipe/purge
assembly are activated in case the printhead and cap/wipe/purge
may be “glued” together by cooled ink.
b.
After waiting for the ink to melt, the cap/wipe/purge assembly is
lowered to its home position.
c.
The process motor is rotated to tilt the printhead forward (if not
already forward), rotate all the rollers to their ready positions,
disengage the transfix roller, and lower the maintenance drawer
blade and wiper.
d.
The printhead is moved to its X-axis home position and then
centered.
e.
A short wipe is performed and the cap/wipe/purge assembly is
returned to its home position.
4.
The printhead is tilted back to the locked position.
5.
The front panel displays a warm up message.
6.
The heaters are enabled and the drum begins to rotate.
7.
When the ink in the printhead is molten, the cap/wipe/purge assembly
is positioned to the purge position.
8.
The printhead tilts forward and a purge cycle begins.
9.
A cleaning page is printed.
10.
The front panel displays a message that the printer is initializing and
then ready.
The print engine is initialized.
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 ...