This is a photo-interrupter-type sensor. When the cassette camp rotates to block the sensor light, lowering of the pressure plate of the cassette is detected.

Cassette encoder sensor

The cassette encoder sensor detects the slits on the encoder film during cassette motor rotation, thus detecting the amount of rotation of the roller.

Paper detection sensor

This is a photo-interrupter-type sensor. When paper is supplied from the cassette, paper tray, or auto roll feed unit, the sensor light is blocked by the sensor arm,

thus detecting paper.

Spur cam sensor

This is a photo-interrupter-type sensor.

When the sensor light is shielded by the rotation of the spur motor, the printer detects that the spur unit is at the upper-limit position.

When the sensor light is unshielded by the rotation of the spur motor, the printer detects that the spur unit is at the bottom position.

The spur height is controlled by driving the spur motor with a predetermined number of pulses.

Cutter lift sensor

This is a photo-interrupter-type sensor. When the cutter unit ascends, the sensor unit blocks the sensor light, thus detecting that the cutter unit is at the upper-limit

position (escaped).

Cutter HP sensor

This is a photo-interrupter-type sensor. This sensor detects that the cutter is at the home position (left end).

Cutter right position sensor

This is a photo-interrupter-type sensor. This sensor detects that the cutter is at the right end.

Feed roller encoder sensor

Cassette detection sensor

Cassette paper detection sensor

Feed roller HP sensor

F-2-60

Cassette detection sensor

This is a photo-interrupter-type sensor. When the cassette is installed, the protrusion at the back of the cassette blocks the sensor light to detect the cassette.

Cassette paper detection sensor

This is a photo-interrupter-type sensor. When media is loaded in the cassette, the sensor arm blocks the sensor light, thus detecting the media.

Feed roller HP sensor

2-55

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