TSC CPX4P Series, Service Manual

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Operation Modes
Operation modes of Ink Supply System are broadly classified into 3 categories according to the states of
components of Printer.
•
Initial ink loading
Ink is supplied from Ink Tanks to Sub Tanks, shipping ink is collected, and ink is supplied from Sub
Tanks to Printheads.
•
Ink supply during printing
Ink supplied from Ink Tanks to Printheads to replenish ink used for printing.
•
Collection of waste ink within caps
Ink used for cleaning is collected in Maintenance Cartridge.
The following table shows the relationship between operation modes and open/closed states of Valves
and Motor driving state.
Operation mode
Open/Closed state of each Valve
Suction
Pump
Between
Printheads
and Caps
Bubble
removing
Valve
Ink
Supply
Valve
Suction
Valve
Pressure
Release
Valve
Buffer
Valve
Wipe
Valve
Initial ink
loading Ink supply
from Ink Tanks
to Sub Tanks Open Closed Closed Open Closed Open Driven Sealed
Collection of
shipping ink
(1)
Reduction of
pressure in
Buffer Closed Closed Closed Open Closed Open Driven Sealed
Collection of
shipping ink
(2)
Movement of
shipping ink to
Buffer
Closed Closed Open Closed Closed Open Driven Sealed
Collection of
shipping ink
(3)
Collection of
shipping ink in
Maintenance
Cartridge
Closed Closed Open Open Closed Open Driven Sealed
Ink supply
from Sub
Tanks to
Printheads Closed Open Closed Open Closed Open Driven Sealed
Ink supply
during printing Closed Closed Closed Open Closed Open Stopped Separate