EPSON Stylus Scan 2500

Revision A

Nozzle selector

Board

Ink Out

sensor

actuators

Needle

Ink cartridge

PZT

(Piezo) unit

Filter

Nozzle

Ink cavity

plate

 

Figure 2-2. Printhead Sectional Drawing

Ink Out sensor actuators (x2)

The Ink Out sensors (x2) detects whether or not an ink cartridge is installed according to the position of the Ink Out sensor actuator. When a cartridge is installed, the actuator is pushed down, which turns the shaft that is connected to the actuator. The flag at the other end of the shaft activates the Ink Out sensor when the cartridge is fully in place.

See the next page for more details on the nozzle selector board and the ink ejecting process.

Operating Principles

Printer Mechanism Operation

36

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Image 36
Epson Scan 2500 service manual Nozzle selector Board, Sensor, Ink cartridge, Piezo unit Filter, Ink cavity