Epson Stylus Pro 7400 - Page 311

EPSON Stylus Pro 7400/7800/9400/9800 Revision B
Adjustment Mechanical Adjustment 311
4. Open the Valve No.2 and No.3 to reduce the pressure inside the measurement
jig.
5. Check that “0.0” kPa is displayed on the gauge.
6. Close the Valve No.3 and pull the piston head of the syringe.
Figure 5-20. Air Leak Check (1)
Connected to the Measurement Cartridge inserted
into the cartridge slot of the printer.
Valve No.2 (close)
Valve No.3 (close) Green Button
“0.0” kPa must be displayed
Syringe with its piston pulled fully