SANEI ELECTRIC SK1-21A, Technical Manual

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１５
SK1-21A/31A
2- 5
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Paper near-end sensor
Sensing roll paper’s remaining amount can be adjusted in three levels by sliding near-end-sensor.
The level is set based on core’s diameter in factory default.
Adjusting knob on the holder must be slide in the direction of an arrow by using a fine-tipped tool like
tweezers.
（
Unit
：
mm
）
Position Detectable paper diameter
1 φ 21.0±2mm
2 φ 24.5±2mm
3 φ 35.0±2mm
・
Do not mount the printer on vibrating or slanted surfaces.
・
The external diameter should be used as a reference value.
Near-end sensor
Adjusting
knob
Scale
Enlarged view
Slide direction
Scale
Slide direction
Adjusting
knob
Adjusting Knob is set at No.3 when 1-inch core
adapter is installed.
Enlarged view
Near-end sensor
1-inch core
adapter