October 2012
6-15
ColorQube 8570/8870 Service Manual
Service Diagnostics Tests
General Troubleshooting
Xerox Internal Use Only - Revised, 3rd Revision
Activators
(cont.)
Tray 5 Pick Clutch
This test briefly energizes the
Tray 5 Pick Clutch and mea-
sures parameters. Peak
power is expected to be very
close to the average power
level. A change in heating
behavior could indicate a
problem with cooling or the
thermal conductivity through
the mounting.
tray 5 option not detected
press any key to continue
Tray 5 Pick Clutch On/Off
operator abort
Press any key to
terminate.
Deskew Clutch
This test briefly energizes the
Deskew Clutch coil and mea-
sures parameters. Peak
power is expected to be very
close to the average power
level. A change in heating
behavior could indicate a
problem with cooling or the
thermal conductivity through
the mounting.
Deskew Clutch On/Off
operator abort
Press any key to
terminate.
Strip Solenoid
This test briefly energizes the
Stripper Solenoid and mea-
sures parameters. Peak
power is expected to be very
close to the average power
level. A change in heating
behavior could indicate a
problem with cooling or the
thermal conductivity through
the mounting.
Strip Solenoid On/Off
operator abort
Press any key to
terminate.
Head Maintenance Clutch
This test energizes the Head
Maintenance Clutch coil and
measures parameters. Peak
power is expected to be very
close to the average power
level. A change in heating
behavior could indicate a
problem with cooling or the
thermal conductivity through
the mounting.
HM Clutch On/Off
operator abort
Press any key to
terminate.
Table 2 Service Diagnostics Menu Definitions
Menu Item
Description
Control Panel Display
Note
Activators
(cont.)
Purge Valve Solenoid
This test energizes the Purge
Vent Solenoid and measures
parameters. Peak power is
expected to be very close to
the average power level. A
change in heating behavior
could indicate a problem with
cooling or the thermal con-
ductivity through the mount-
ing.
Purge Valve Solenoid On/
Off
operator abort
Press any key to
terminate.
Preheater Solenoid
This test briefly separately
energizes both coils of the
Preheater Solenoid Assem-
bly and measures parame-
ters. Each Solenoid Coil is
activated for a short time a
both high and low power lev-
els while the power is mea-
sured to show that the
Solenoid Coils are indepen-
dently controllable and draws
the expected amount of
power.
Preheater Solenoid On/Off
operator abort
Press any key to
terminate.
Tilt Solenoid
This test energizes the Head
Tilt Solenoid Coil and mea-
sures parameters. The Sole-
noid is engaged at high
power and held at a lower
power. The on cycle is four
times longer than the other
activators. During the first
half of the on period, high
power is applied. The power
is dropped to low during the
second half of the period.
The Solenoid should not
release until the end of the
on period.
Head Tilt Solenoid On/Off
operator abort
Press any key to
terminate.
Table 2 Service Diagnostics Menu Definitions
Menu Item
Description
Control Panel Display
Note
Summary of Contents for COLORQUBE 8570
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