HB451861 Pressure Sensor for Hitachi RX-160W RX2 Printer Use

The E55-004392S power supply is a replacement part for Leibinger continuous inkjet (CIJ) printers, specifically used in the jet2, jet2neo, and jet3 series. This model number typically refers to the power supply unit without the integrated Extra High Tension (EHT) block.  

the 383558 Ink Core Without Pump Ink Module, is a specific spare part for VJ 1240 Continuous Inkjet (CIJ) printers. This component is designed for industrial coding and marking applications in various industries, such as food and beverage.   

  VB396630 is a specific valve module for VIJ 1000 Series & VJ 1710 inkjet coding printers, used in industrial printing for controlling ink flow, often as an alternative or replacement part

399076 Ink Pump core Pump use for Willett 630 620 Printer 1210 1220 1510 1520 1610 1620 Inkjet Coding Printer（Original with Motor）

395624 Gutter Pump Valve Module for 1710 VJ Printer offers eco-friendly, low-odor, and high-performance inkjet printing. Perfect for all package printing.

The item you are looking for is the main board (motherboard/CPU board) for a Markem-Imaje 9030 industrial continuous inkjet (CIJ) printer, with the "1.1G" likely referring to the board version or CPU speed/type.  

Linx 8900 Service Module (also known as a service kit or filter box) is an all-in-one, self-contained unit designed for user-friendly, tool-free maintenance of the Linx 8900 series of Continuous Inkjet (CIJ)  

The "RX2 pressure sensor" primarily refers to the sensor component used in Hitachi RX series inkjet printers, specifically the RX2 series industrial printers.