Ink-Related Sensors - Epson Stylus Pro 9000 - Print Engine Service Manual

EPSON Stylus Pro 9000

INK-RELATED SENSORS

The following sensors are located in the I/H compartment:


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


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


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


Ink ID sensor
This optical sensor is located on the side of all six ink cartridge slots and
detects which market the cartridge is for. Although not currently
implemented, the sensor can also detect the type of ink (presently dye
only) and any 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)
Technical Overview
Ink Cartridge Ink ID Sensor
Figure 2-13. Ink Cartridge Holder Sensors
Ink Cartridge Sensor
Ink Low Sensor
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