Optical Sensors; Image Write Start Sensor - Canon iR105 Service Manual

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CHAPTER 2 NEW FUNCTIONS

6.3 Optical Sensors

To accommodate the increase in the process speed, the machine uses a combination of an

optical sensor [1] and a prism [2] instead of a photo sensor and a sensor flag for some of the

sensors in the pickup/feeding assembly, thus ensuring correct detection of paper. (For the

position of the sensors, see F02-604-01.)

The image write start sensor is used to support the increased speed of operation. It detects

the leading edge of paper before it reaches the registration roller, preparing the printer for

printing operation. The presence of this sensor enables the shortest possible sheet-to-sheet

distance. (For the position for the sensor, see F02-604-01.)

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CANON iR105 REV.0 JULY 2001

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