Xerox DocuColor 1632 Service Manual page 235

12-244 Staple Home Sensor
The Staple Head Home Sensor never turn on within 200ms after the STAPLER MOTOR
started to revolve backward (open).
Procedure
Enter dC330 [012-207] and press Start. Turn the Staple Head Home Sensor on/off using
paper. The display changes.
Y N
+5 VDC is measured between the Stapler Assembly p/j (+) and Finisher PWB Chas-
sis (-).
Y N
+5 VDC is measured between the Finisher PWB p/j (+) and Finisher PWB Chas-
sis (-).
Y N
Replace the Finisher PWB
Check the wire between the Finisher PWB p/j and the Stapler Assembly p/j for an
open circuit or poor contact.
Turn the Staple Motor Gear manually in order not to interrupt the SENSOR. +5 VDC is
measured between the Finisher PWB p/j (+) and Finisher PWB Chassis (-).
Y N
Switch off the power.
Pull out the on the Finisher PWB.
Turn on the power. +5 VDC is measured between the Finisher PWB p/j (+) and
Finisher PWB Chassis (-).
Y N
Replace the Finisher PWB
Check the circuit between the p/j and the Stapler Assembly p/j for short circuit.
Block the sensor. 0 VDC is measured between the Finisher PWB p/j (+) and Finisher
PWB Chassis (-).
Y N
0 VDC is measured between the Stapler Assembly p/j (+) and Finisher PWB
Chassis (-).
Y N
Replace the Stapler Assembly
Check the wire between the Stapler Assembly p/j and the Finisher PWB p/j for an
open circuit or poor contact.
Replace the Finisher PWB (PL 17.13).
Enter dC330 [012-020] (CLOSE). The STAPLE MOTOR energizes.
Y N
With [12-020] running +24 VDC is measured between the Finisher PWB p/j (+) and
Finisher PWB Chassis (-).
Y N
Replace the Finisher PWB (PL 17.13).
A B
Prelaunch Training/Review
DC1632/2240
(PL 17.13).
(PL 17.13).
(PL 17.9).
A B
Check conductivity of the following:
ï Between the Finisher PWB p/j ~ Stapler Assembly p/j
ï Between the Finisher PWB p/j ~ Stapler Assembly p/j
ï Between the Finisher PWB p/j ~ Stapler Assembly p/j
ï Between the Finisher PWB p/j ~ Stapler Assembly p/j
If no problems are found, replace the Stapler Assembly
If the problem continues, replace the Finisher PWB
Replace the Finisher PWB (PL 17.13).
Staple Move Sensor
Figure 1 Component Location
Figure 2 Staple Head Home Sensor
6/02
2-205
(PL 17.9).
(PL 17.13).
Staple Front
Corner Sensor
Status Indicator RAPs
12-244