Xerox COLORQUBE 8570, Руководство по обслуживанию

Страница: 330 / 433

October 2012
6-16 ColorQube 8570/8870 Service Manual
Service Diagnostics Tests
Revised, 3rd Revision - Xerox Internal Use Only General Troubleshooting
Motors/Shafts The Motor and Shaft func-
tions drive the specified
Motor or Shaft enough to
generate enough motion to
be easily observed (usually 1
revolution), without making a
substantial change to the
state of the printer.
The functions continue to
cycle the Motor/Shaft repeat-
edly until interrupted by a
Control Panel key press.
The permanently connected
Shafts are verified with the
driving Motor. The other
Shafts are verified via a
Clutch activation. initializing
Process Motor
The Process Drive motor is
moved to the Home position,
then the motor is jogged CW
until it begins to engage the
Drum Maintenance Unit.
Next, the motor is run slowly
CCW for one revolution. The
slow motion removes the
effect of inertia from the test,
and the one revolution avoids
a large system status change
via any permanently con-
nected loads. With the slow
operating speed used by the
test, the motor may stall at a
bad commutator segment.
Unusual average values
might indicate a weak motor. CW
Pause
CCW
Pause
operator abort
To terminate the
operation, press
any key when
Paused is dis-
played.
Y-Axis Motor
This function jogs the
selected Motor briefly CW
then CCW (except for the Lift
Motors which only jog CCW),
and the Tray 3 & 4 Motors
which only jog CW), so that
its operation may be visually
verified. The permanently
connected Shafts will jog
also. CW
Pause
CCW
Pause
operator abort
To terminate the
operation, press
any key when
Paused is dis-
played.
Table 2 Service Diagnostics Menu Definitions
Menu Item Description Control Panel Display Note
Motors/Shafts
(cont.) Y-Axis Motor (cont.)
The Y-Axis motor is moved to
the Home position, then
turned on and run slowly for
one revolution. The slow
motion removes the effect of
inertia from the test, and the
one revolution avoids a large
system status change via any
permanently connected
loads. With the slow operat-
ing speed used by the test,
the motor may stall at a bad
commutator segment.
X-Axis Motor
This function drives the X-
Axis Motor CW 1/8 rev. then
CCW 1/8 rev, and repeated
so that operation may be
visually verified.
With the Right Cover off, look
at the back of the X-Axis
Motor and observe that the
Shaft rotates 1/8 revolution
CW and CCW.
The cone-nut will move later-
ally a small distance while
the cone-nut guide notch
engaged with the chassis
anti-rotation rib prevents rota-
tion, CW
Pause
CCW
Pause
operator abort
To terminate the
operation, press
any key when
Pause is dis-
played.
Purge Pump Motor
This function cycles the
Purge Pump Motor on/off
repeatedly to demonstrate
controllability. ON
Pause
operator abort
To terminate the
operation, press
any key when
Pause is dis-
played.
Drum Fan Motor
This function cycles the spec-
ified Fan. The off period is
longer than the on period to
allow the Fan to slow down
enough to be easily observ-
able. ON
Pause
operator abort
To terminate the
operation, press
any key when
Pause is dis-
played.
Table 2 Service Diagnostics Menu Definitions
Menu Item Description Control Panel Display Note