Chapter2 Operating Principles
Rev. A
2-1
2.1.1.4.1 Pump, Carriage Lock, Head Cleaner Mechanism
In the Stylus Color 600, there is no switch or mechanism to change over the pump/paper feed mechanism.
Therefore, whenever the paper feed/pump motor rotate, pump drive roller in the pump unit inside rotates.
However, ink absorption/non ink absorption are separated by the roller rotational direction. Also, even if the
pump driver rotates toward ink absorption and the carriage position is in the false absorption position, only
driving in the pump mechanism is performed and actual ink attraction is not done. The figure below shows
process of conveying motive power to the pump drive roller.
The process of conveying the motive power to the paper eject roller by rotating the pinion of PF motor
is descried in figure 2-14. This motive power is conveyed to the Gear C through Gear B.
In the figure above, although the lever in order to drive Gear C, carriage lock, head cleaner mechanism
is shown separately, it is constructed as one unit. Since the engagement of these two parts depends on the
tension of the compression spring, if the lever is burdened, only Gear C and pump roller rotate and no
more motive power is conveyed to the lever part.
Gear A
Gear B
Gear C
Axis of Paper Eject Roller
Actually, these parts
are one unit.
Compression
Spring
Pump Drive Roller
Figure 2-14. Pump Mechanism Power Transmission Process
