A calibration determination device includes: a free roll that conveys the bonding member; a load detection device that detects a load applied to a bearing of the free roll; a tension adjustment device that winds the bonding member to increase a tension applied to the bonding member and unwinds the bonding member to reduce the tension applied to the bonding member so as to adjust the tension applied to the bonding member; and a calibration determination unit that determines whether calibration of the load detection device is necessary. The tension adjustment device unwinds the bonding member to cause the bonding member not to be subjected to the tension, and the calibration determination unit determines whether the calibration of the load detection device is necessary based on the load detected by the load detection device with the bonding member not being subjected to the tension.

The printer is a printer for printing on a label continuous body including a label detecting unit having a light-emitting portion configured to emit a detecting light and a light-receiving portion configured to receive the detecting light and a control unit configured to adjust a light emitting output of the detecting light in the light-emitting portion, so as to bring an output voltage from the label detecting unit when the light-receiving portion receives a detecting light through the liner to which the label is not temporarily attached, closer to an output voltage from the label detecting unit when the light-receiving portion receives a detecting light through a state in which there is no label continuous body between the light-emitting portion and the light-receiving portion.

A paper sheet detection device includes: an optical sensor that includes a light-emitting portion that emits light, and a light-receiving portion that receives the emitted light; a storage portion that stores a first threshold value used for determining whether or not a paper sheet is present in a path of the emitted light, a target light-receiving level set as a target value of a level of the light received by the light-receiving portion in a state where the paper sheet is not present, and a second threshold value that is set to a value that is greater than the first threshold value and less than the target light-receiving level; an estimating portion that determines whether the level of the light received by the light-receiving portion is equal to or greater than the first threshold value and less than the second threshold value, and that estimates whether or not the paper sheet is present; and a light amount adjusting portion that adjusts an amount of the light emitted by the light-emitting portion so that the level of the light received by the light-receiving portion becomes the target light-receiving level in the state where the paper sheet is not present when the estimating portion estimates that the paper sheet is not present after the estimating portion determines that the level of the light received by the light-receiving portion is equal to or greater than the first threshold value and less than the second threshold value.

An image processing apparatus includes a transmitter, a receiver, a comparison circuit, and a control unit. The transmitter transmits an ultrasonic wave to a conveyance path through which a sheet is conveyed. The receiver faces the transmitter with the conveyance path in between, and receives the ultrasonic wave transmitted by the transmitter. The comparison circuit compares a level signal indicating a reception level of the ultrasonic wave received by the receiver with a threshold signal for determining whether or not the sheet is double-fed in the conveyance path, and outputs a comparison result signal according to the comparison result. The control unit determines whether or not there is a possibility of a defect in the double feed detection function of detecting double feed based on the comparison result signal and the level signal.

Method and parameterization unit for parameterization of a tractive force controller of a controlled roller of a web-processing machine, the tractive force controller controlling a speed of the controlled roller in order to transport a material on the web-processing machine from the controlled roller to a further roller or from a further roller to the controlled roller at a line speed and while being subjected to the tractive force. The method includes, during a standstill test at a line speed of zero, increasing the tractive force to an identification tractive force, preferably 90% of a predetermined standstill tractive force operating point, to determine standstill system parameters of the tractive force system, to calculate standstill controller parameters of the tractive force controller from the standstill system parameters of the tractive force system, preferably by a frequency characteristic method, and to parameterize the tractive force controller using the standstill controller parameters.

A printer comprises a print carriage, a line sensor, a processor and a controller. The print carriage is configured to print a calibration plot onto print media. The line sensor is configured to emit light onto the calibration plot across the width of the calibration plot and measure the intensity of light reflected from the calibration plot. The processor is configured to determine a correction factor according to a position of a peak in the measured intensity corresponding to a position in the printed calibration plot in which a portion of a first printed mark overlaps a portion of a second printed mark. The controller is configured to adjust the distance by which print media is advanced according to the correction factor. A method for automatically calibrating the advance of print media in a printer comprises printing a calibration plot onto print media, scanning the printed media with a line sensor, determining a correction factor based on a signal from the sensor indicating light intensity across a width of the printed calibration plot and adjusting the advance based on the correction factor.

Printing apparatus includes a paper support configurated to support a sheet body, a TOF sensor configured to detect a distance to the sheet body, a conveyor configured to convey a sheet medium in the sheet body, a printing device configured to print on the sheet medium conveyed by the conveyor, and a controller. The controller is configured to execute remaining amount detection processing that detects a remaining amount of the sheet medium based on a detection result of the distance to the sheet body by the TOF sensor, and calibration processing that corrects distance detection deviation of the TOF sensor based on a detection result of a distance to a predetermined detection object by the TOF sensor in a predetermined state in which a distance from the TOF sensor to the detection object is a predetermined value.

A method, apparatus and program product may evaluate a packaging material to determine various metrics associated with the packaging material. An apparatus may be used to sense flaws in packaging material, and in some instances, to accommodate such flaws by temporarily increasing a dispense rate of a packaging material dispenser.

An apparatus calibrates the optical sensor to calibrate the distance measured by the sensor with the expected distance using a calibration surface at the expected distance.

A device (100) includes a sensor (101) to determine a capacitance between a first metal piece (209, 309, 409, 509, 609, 709, 809, 909) coupled to a paper tray (213, 413, 513, 913) of a printing device (206, 306) and a second metal piece (207, 307, 407, 507, 607, 707, 807, 907) coupled to a paper width adjuster (212) of the printing device (206, 306). The device (100) also includes a controlled (102) coupled to the sensor (101) comprising a processor (103) in communication with a memory resource (104) including executable instructions to determine a size of paper in the paper tray (213, 413, 513, 913) based on the determined capacitance.