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Chapter 2 Setup
Adjusting the Paper Roll Near-End Sensor
Below are two situations where a roll paper NE sensor adjustment is required.
• To adjust the detection position to suit the diameter of the roll paper core used.
• To adjust the detection position of remaining amount of paper.
Follow the steps below to adjust the roll paper near-end sensor.
1
Open the roll paper cover, and remove the roll paper.
2
Loosen the adjustment screw fastening the sensor, and then operate the knob to
align the top edge of the positioning plate with the upper or lower level.
• Since roll paper cores vary slightly in shape, depending on paper roll design and manufacturing
tolerances, it is impossible to detect the remaining paper exactly.
• To let the NE sensor detect remaining amount of paper accurately, it is recommended to use a roll
paper with a core inner diameter of 12 mm {0.47"} and outer diameter of 18 mm {0.71"}.
• An outer diameter of a paper roll that is detected as near-end varies by usage environment, and/or
paper specifications. Please check operation of the NE sensor by yourself.
Adjustment position Upper Lower
Outer diameter of a roll to
be detected as near-end
Approx. 27 {1.06"} Approx. 23 {0.97"}
Position of the positioning
plate
Detection lever
Positioning plate
Adjustment screw
Adjustment screw
Positioning plate
Detection lever
For wall-hanging
For horizontal installation
Knob
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