Appendix
259
IX. Printer shuts down on its own
ADDITIONAL CLUES
Loss of power
PROBABLE ROOT CAUSE
ACTIONS (follow in order)
1.
Printer shuts down
with power switch
still “on.” Cycling
power brings
printer back to
“Ready.”
A.
Spurious over-current.
1A.
If printer powers back on within
two seconds, do nothing.
If printer powers on in about 6
seconds, remove power cord,
wait 30 seconds, and then plug
back in. If it then powers up within
2 seconds, do nothing.
Otherwise, replace power supply.
If the printer does not power back
on after waiting at least 10
seconds, replace main board.
X 2-inch wide black stripe on every print
ADDITIONAL CLUES
PROBABLE ROOT CAUSE
ACTIONS (follow in order)
1.
Black stripe is
composed of all 4
colors and extends
from very top edge
of page to very
bottom edge of
page.
A.
Damaged printhead data
cable.
B.
Failed main board.
1A.
Reseat the printhead data
cable, Replace the printhead
data cable.
1B.
Reseat the main board,
Replace the main board.
XI Squiggly vertical lines across entire print image
ADDITIONAL CLUES
PROBABLE ROOT CAUSE
ACTIONS (follow in order)
1.
X-axis motor not
moving (840 only).
A.
Blown x-axis fuse on
power control board (840
only).
1A.
Replace the
power control board (840 only).
Summary of Contents for Phaser 840
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