Recording device, control method of a recording device, and storage medium

摘要

The cutting control unit 20a of a printer 1 monitors the output value of a notch detection sensor 19 while conveying a recording medium, and calculates a position corresponding to the axis of symmetry of a notch where a cutting unit is to cut based on a starting position and an end position. The starting position is the position of the recording medium at the detection position of the sensor when the sensor output value exceeds a specific threshold. The end position is the position of the recording medium at the detection position when the sensor output value goes below the specific threshold after the starting position is detected.

主权项

1. A recording device comprising:
a conveyance unit configured to convey a recording medium a controlled distance through a conveyance path, said recording medium having at least one notch; a recording unit configured to record on the recording medium; a cutting unit configured to cut the recording medium, said cutting unit being at a known location along the conveyance path; a sensor configured to sense a varying amount of recording medium within a defined sensing region, wherein the magnitudes of the output signals from the sensor are proportional to the amount of sensed recording medium within said sensing region, said sensing region being a known distance from the cutting unit along the conveyance path, and being positioned to coincide at least partially with the conveyance path of the notch as the medium is conveyed; and a control unit configured to:
(a) control the conveyance unit, the recording unit, and the cutting unit;(b) acquire output signals from the sensor while conveying the recording medium with the conveyance unit;(c) determine a length-span of the notch based on the magnitudes of the output signals issued by the sensor as the notch is conveyed pass the sensing region, wherein as the notch enters, passes through, and exits the sensing region, the magnitudes of the output signals respectively vary gradually from an initial magnitude, to a peak magnitude and return to the initial magnitude, said length-span being a dimension of the notch along the conveyance path;(c) identify a target cutting position within the length-span of the notch, and determine a conveyance distance from the target cutting position to the cutting unit based on the location of the target cutting position relative to the known position of the cutting unit along the conveyance path; and(d) convey the notch to the cutting unit and cut the recording medium with the cutting unit at the target cutting position based on the determined conveyance distance.