Epson DFX-9000 Field Repair Guide
3/29/07
Motors, Sensors, and Switches
Printer Component,
Software Item,
LCD Display,
Printer Button
Page 160.
Open/Close Sensor 1 (OC)
Works with
OC Sensor 2
to determine the position of the
Card Guide
(
Paper Bail
).
Open/Close Sensor 2 (OC)
Works with
OC Sensor 1
to determine the position of the
Card Guide
(
Paper Bail
).
Paper Jam Sensor (PJS)
Detects whether or not paper is traveling through the paper path.
Paper Path Shift Sensor (PPSS)
Detects which paper path (front or rear) is selected
Print Head Thermal Sensors (qty 2) Detects the internal temperature of the
Print Head
. If the temperature
exceeds 114
o
C, printing pauses for 0.5 seconds at both the left and right
sides. If the temperature exceeds 116
o
C, printing stops and a “Head Hot”
error is generated.
Rear Paper Empty Sensor (RPES)
Detects the presence or absence of paper in the Front Tractor Assembly
Ribbon Feed Shaft Sensor (RFS)
Detects whether or not a ribbon jam has occurred
Ribbon Mount Sensor (RMS)
Detects whether or not a ribbon is mounted in the printer
Top of Form Sensor (TOFS)
Detects the presence of paper by receiving light reflected from paper.
Top of Paper Sensor (TPES)
Detects the top and bottom edges of paper when it is loaded
Sensor Name (acronym)
Function
