Epson DFX-9000 - Page 155

Epson DFX-9000 Field Repair Guide 3/29/07
Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 146.
APTC
(AUTOMATIC
PAPER
THICKNESS
CONTROL
SENSOR)
ON At the APTC
SENSOR
Pin 2
Pin 4
At the APTC
SENSOR
Pin 3
Slowly rotate the
CARRIAGE SHAFT
forward and then
backwards.
Both outputs toggle
between 0 and 5 VDC
Note:
A correct reading
must be obtained
from both outputs for
the sensor to pass
testing
If the CARRIAGE is
rotated too quickly an
average reading of 2.5
VDC might be
displayed.
SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING