A measurement device includes a measurement unit that measures a physical property of a measurement target by causing the measurement target to vibrate through an application of an ultrasonic wave, the measurement unit including a first mode that measures the physical property using a first burst wave sensitive in a first predetermined range of physical property values and a second mode that measures the physical property using a second burst wave sensitive in a second range of physical property values different from the first range, and a control unit that controls the measurement unit to execute at least one of the first mode and the second mode.

A recording medium determination device includes a light emitter, a light detector, and a hardware processor. The light emitter emits inspection light to a recording medium. The light detector detects incident light including at least one of diffuse reflected light of the inspection light emitted to the recording medium and fluorescent light excited by the inspection light in the recording medium. The hardware processor makes a determination depending on a property of the recording medium based on a detection result of first incident light of the incident light in accordance with first inspection light of the inspection light and second incident light of the incident light in accordance with second inspection light of the inspection light obtained by the light detector. The second inspection light has an intensity whose peak wavelength is shorter than the peak wavelength of the first inspection light.

A printing apparatus provides a conveyance operation in which a conveyance unit conveys a print medium in a conveyance direction, and includes a control unit to control a printing unit such that, in a case where an image is to be printed onto a print medium of a first type in a first state in which the print medium of the first type is supported by a first conveyance member and not supported by a second conveyance member, the printing unit uses a printing element included in a first region from which a distance to the print medium of the first type in a height direction perpendicular to a surface where the printing elements are arrayed is a first distance, and does not use a printing element included in a second region from which a distance to the print medium of the first type in the height direction is a second distance greater than the first distance.

In a printer, a controller determines a type of print medium currently mounted in a mount portion, and acquires a first set of print data correlated with a first medium type and a second set of print data correlated with a second medium type. In a case that a print medium of the first medium type is mounted in the mount portion, a print portion prints a first print image based on the first set of print data, and thereafter prints a second print image based on the second set of print data. In a case that a print medium of the second medium type is mounted in the mount portion, the print portion prints the second print image based on the second set of print data, and thereafter prints the first print image based on the first set of print data.

A recording apparatus includes a print head, a recovery unit, a type obtaining unit, a threshold obtaining unit, and a calculation unit. The print head forms an image by applying a recording material to a recording medium. The recovery unit performs a recovery operation for recovering an ejection state of the print head. The type obtaining unit obtains a type of the recording medium on which the image is to be recorded. The threshold obtaining unit obtains a threshold for performing the recovery operation corresponding to the obtained type of the recording medium. The calculation unit calculates a count-up value by adding, in response to recording on the recording medium, an addition value set for each of types of recording media. The recovery operation is performed in a case where the count-up value calculated by the calculation unit exceeds the threshold obtained by the threshold obtaining unit.

For a plurality of types of print media, a pre-trained model is prepared, the pre-trained model being generated by machine learning based on spectroscopic information of an unprinted area on the print medium and an identifier indicating the type of the print medium and using the identifier as a trainer. The spectroscopic information of the unprinted area on the print medium to print on is acquired. The acquired spectroscopic information is applied to the pre-trained model. Using a result thereof, auxiliary information about the type of the print medium is outputted. A specification of the type of the print medium using the outputted auxiliary information is accepted. When the type of the print medium is thus specified, printing is performed using a print condition suitable for the print medium.

A tape cassette that includes a tape cassette that includes a housing having a top surface, a bottom surface, a rear wall, a front wall, and a tape feed exit located on the front wall, a tape included at least partially within the housing and configured to be fed along a tape feed path extending to the tape feed exit, and a first indicator aperture positioned on the front wall and a second indicator aperture position on a rear portion of the bottom surface. A position of the first indicator aperture on the front wall indicates a type of the tape included within the housing. A position of the second indicator aperture indicates a color of characters.

A tape cassette that includes a tape cassette that includes a housing having a top surface, a bottom surface, a rear wall, a front wall, and a tape feed exit located on the front wall, a tape included at least partially within the housing and configured to be fed along a tape feed path extending to the tape feed exit, and a first indicator aperture positioned on the front wall and a second indicator aperture position on a rear portion of the bottom surface. A position of the first indicator aperture on the front wall indicates a type of the tape included within the housing. A position of the second indicator aperture indicates a color of characters.

A recording device includes a recording unit configured to perform recording by ejecting a liquid onto a medium configured to transmit an ultrasonic wave, a transport unit configured to transport the medium, an imaging unit configured to capture an image of the medium, an ultrasonic wave sensor including a transmission unit configured to transmit an ultrasonic wave to the medium and a reception unit configured to receive an ultrasonic wave transmitted by the transmission unit, and a control unit configured to control an operation of the recording unit, based on an imaging result from the imaging unit and a detection result from the ultrasonic wave sensor. The transmission unit and the reception unit are positioned sandwiching the medium.

A feeder includes a conveyance path, a conveyance roller that conveys a sheet along the conveyance path, a transmitter that emits a space propagating energy, a receiver that receives a reflected energy obtained by reflection of the space propagating energy, and an actuator mounted pivotably on a pivot shaft and including first and second legs extending in different directions from the pivot shaft. The first leg is disposed to extend to the conveyance path and abut against the sheet being conveyed along the conveyance path. The second leg has a reflective surface crossing a path of the space propagating energy. The actuator is pivoted by abutment of the sheet against the first leg. The reflective surface is formed so that the reflected energy obtained by the reflection of the space propagating energy on the reflective surface enters the receiver regardless of an angle of pivotal movement of the actuator.