Liquid consumption apparatus
A liquid consumption device, liquid technology, applied in printing and other directions, can solve problems such as inability to suppress reflections
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no. 1 example
[0092] A-1. Composition of printing device:
[0093] figure 1 It is a perspective view showing main parts of a printing apparatus 10 as an embodiment of the present invention. figure 2 is a schematic configuration diagram of the printing device 10 . exist figure 1 are plotted with mutually orthogonal XYZ axes. In subsequent figures the XYZ axes are also appended if necessary. In this embodiment, in the usage posture of the printing device 10 , the Z-axis direction is the vertical direction, and the surface of the printing device in the X-axis direction is the front. The main scanning direction of the printing device 10 is the Y-axis direction, and the sub-scanning direction is the X-axis direction. The printing device 10 as a liquid consumption device includes: one ink cartridge 100 each containing ink IK such as cyan, magenta, yellow, and black is installed, and a carriage 20 having a failure detection plate 81 is driven in the main scanning direction HD. The carriage ...
no. 2 example
[0122] In the first embodiment, the bottom surface of the light shield 50 (the surface of the light shield 50 facing the detection portion 90 ) is a plane (the surface perpendicular to the -Z direction). On the other hand, in the second embodiment, the case where the bottom surface of the shade is inclined will be described. Figure 12 It is a diagram showing noise light when the carriage 20 includes the inclined shade 51 . Such as Figure 12 As shown, the bottom surface of the inclined light shield 51 is inclined toward the side of the light-emitting element 92 when the center line L of the sensor and the center line M of the prism are aligned. The lateral width with respect to the Y-axis and the longitudinal width with respect to the center line M of the prism of the inclined light shield 51 are the same as those of the light shield 50 of the first embodiment. The inclination angle of the bottom surface of the inclined shade 51 is 45 degrees in this embodiment. Specifical...
no. 3 example
[0127] In the second embodiment, the bottom surface of the light shield is an inclined surface in which the bottom surface is inclined toward the light emitting element 92 side with the sensor center line L and the prism center line M aligned. On the other hand, in the third embodiment, a shading cover having two inclined surfaces symmetrical about a direction intersecting with the moving direction of the carriage will be described.
[0128] Figure 13 It shows the noise light when the carriage 20 includes the M-shaped shade 52 . Such as Figure 13 As shown, the M-shaped light shield 52 has two inclined surfaces 521 and 522 inclined inwardly on the side opposite to the light emitting element 92 and the light receiving element 94 included in the detection unit 90 . The angles of the two inclined surfaces are respectively 45 degrees in this embodiment. In addition, the bottom surface of the M-shaped shade 52 has a symmetrical shape with respect to the plane formed by the ridg...
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