Xerox PHASER 8500 Service Manual page 147

Phaser 8400/8500/8550/8560 Color Printer Service Manual
Wiper Shaft (Continued)
R# Definition
4 CCW On fe ripple.
5 CCW Off fe setting
time (sec).
6 Time to CW On
peak fe (sec).
7 CW On peak fe.
8 CW On fe settling
time (sec).
Typical
Typical Value
Value (8500/
(8400) 8550/8560) Actions
25 to 100 .08 to .31
0.004 to .015 to .20
0.15
0.005 to .02 to .045
0.20
-275 to -.15 to 0.4
-10
-10 to 1 -.04 to .23
General Troubleshooting
Reports the variation of effort
needed to rotate the wiper
shaft in the CCW direction at a
constant velocity. A larger
value could indicate particles
in the gears or non uniform
contamination of a roller
(causing a lump).
Reports the time it takes the
MP motor servo system to
"settle down" after the sudden
release of the wiper shaft load.
A larger value may show a
dragging or slow to release
clutch.
Reports how long it takes the
MP motor servo system to
react to the sudden addition of
the wiper shaft load.
Larger values may indicate a
slipping or slow to engage
clutch.
Reports the peak effort
required to accelerate the
wiper shaft load.
A smaller value could indicate
a slipping clutch.
Reports the time it takes the
MP motor servo system to
"settle down" following the
sudden addition of the wiper
shaft load.
A longer time could indicate a
looseness in the wiper shaft
assembly or a slipping clutch.
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