Epson Stylus Color 1160 - Page 52

EPSON Stylus COLOR 860/1160 Revision C
Operating Principles Electrical Circuit Operating Principles 52
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CR unit encoder sensor
CR unit encoder sensor includes the linear encoder in the CR unit and the
scale plate attached along the CR scanning direction. The minimum
resolution of the sensor is 1/180 inch, (minimum 1/720 inches with all
edges of Phase A and Phase B) and outputs HIGH signals for the black
bands of the scale and LOW signals for the transparent parts to the ASIC.
The printer controls the CR motor based on the signals output from this
sensor. The sensor also detects the CR home position.