EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
OPERATING PRINCIPLES Overview 52
Confidential
2.1.6 Ink System Mechanism
The ink system mechanism includes the cap mechanism and the pump mechanism.
And the capping mechanism includes the carriage lock mechanism and the wiping
mechanism. The table below describes the function of each mechanism.
Figure 2-14. Ink System Mechanism
2.1.6.1 Capping Mechanism
The capping mechanism incorporates the wiping mechanism, however, the two
mechanisms operate independently. Capping the printhead is performed by the carriage
movement as the conventional models (such as Stylus CX4900/CX5000/CX6000) do.
Figure 2-15. Capping Mechanism
2.1.6.2 Carriage Lock Mechanism
The carriage lock mechanism is activated by the capping operation. Locking or
unlocking the carriage is performed by the PF motor drive force that is transmitted via
the cam of the clutch-equipped combination gear. (See
"Wiping Mechanism (p53)" for
more explanation about the cap slider and the cam operations)
Figure 2-16. Carriage Lock Mechanism
Table 2-4. Function of Each Mechanism in Ink System
Mechanism Function
Capping mechanism
Covers the printhead with the cap to prevent ink evaporation
when the printer is in standby mode or when the printer is off.
Wiping mechanism Wipes dust or ink stain off the printhead nozzle surface.
Pump mechanism
Drains ink from the ink cartridges, ink cavity, and the cap and
sends it to the waste ink pad.
Carriage lock mechanism
Locks the carriage unit with the carriage lock lever while the
unit is in the home position.
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