Epson Stylus Pro 9500 Service Manual page 62

EPSON Stylus Pro 9500
I/H ASSEMBLY SENSORS
The following sensors are located in the I/H compartment.
o
I/H Assembly sensor
This optical sensor detects the whether the door is open and the I/H
Assembly is in the install position or the door is closed and the I/H
Assembly is in the print position.
When the I/H door is open, the signal = ON
When the I/H door is closed, the signal = OFF
o
Ink Cartridge sensor
This mechanical sensor (microswitch) is built in all six ink cartridge slots.
When the I/C is installed, switch = closed
When the I/C is not installed, switch = open
o
Ink Low sensor
This mechanical sensor (microswitch) is at the bottom of all six ink
cartridge slots and detects when ink is running out.
When the I/C is nearly empty, the switch = open
When the I/C is not low (normal), the switch = closed
o
Ink ID sensor
This optical sensor is located at the side of all six ink cartridge slots and
detects the which market the cartridge is for. Although not implemented
currently, the sensor can also detect the type of ink (presently dye only)
and the type of special color (if new colors are introduced in the future).
The Ink ID sensor looks for the following marks on the ink cartridge.
Market: No mark, white = Overseas/Global
Ink type No mark, white = dye-based ink
Special color No mark, white = N/A (may be available in future)
Operating Principles
Ink Cartridge
Component List & Illustrations
Ink ID Sensor
Front of the
Printer
Ink Low Sensor
Figure 2-17. Ink Cartridge Holder Sensors
Revision A
Ink Cartridge Sensor
Rear of the
Printer
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