Epson 810, 820, 830 Step, Step, Step, Step, Wiping position, Wiper setting position, Figure 2-12.Wiper mechanism, Capping position (CR home position)

EPSON Stylus PHOTO 810/820/830 Revision B

2.Wiper with the Cap unit

The wiping operation is controlled by the CR unit movement. This operation is usually performed with every CL sequence which is to absorb the ink from the ink cartridge, the ink cavity by the Pump unit. Following figure shows you the mechanism for the wiping operation.

When the CR unit is in the home position, the hook of the Slider lock lever is not latched to the dent of the Cap frame.

In this time, the protrusion of the Cap slider does not reach the rightmost position of the Cap frame.

Step 1

Protrusion

Not latched

Capping position (CR home position)

Step 2	The CR unit moves to the wiper
	setting position on the rightmost
	position of the Cap frame with
	keeping the cap covered.
	In this time, the hook of the Slider
	lock lever is latched to the dent of the
	Cap frame.

Latched

Wiper setting position

When the CR unit moves to the left side from the wiper setting position, the Cap unit is pulled back by the tension force of the Extension spring 0.523.

In this time, the Cap unit is automatically set to the wiping position because the hook on the Slider lock lever is latched to dent of the Cap frame. And, the wiping operation is performed according to the CR unit movement.

Step 3

Protrusion of the CR unit

Latched

Wiping position

Step 4

Released

Released position (Bottom position)

When the wiping operation is finished and the CR unit moves further to the left side, the hook of the CR unit hits to the Slider lock lever.

In this time, the Slider lock lever is released and the Cap slider returns to the bottom position completely.

(The broken line is the position of the CR unit & the Slider lock lever just before being released.)

Figure 2-12. Wiper mechanism

Operating Principles Overview 38