A printing apparatus 10 includes support member 12 that supports a core body Ra of a roll medium R, a transport mechanism 17 that transports the print medium S drawn out from the roll medium R, a first accommodation sidewall 27 and a second accommodation sidewall 28 arranged in a width direction, a print head 22, and a trailing edge detection section 60 that detects that all of the print medium S that is drawable out from the roll medium R has been drawn out by the transport mechanism 17, wherein the first accommodation sidewall 27 has groove 50, and the roll medium R is accommodated in an accommodation section 11 by engaging the support member 12 with the groove 50 and the trailing edge detection section 60 detects that the support member 12 is separated from an engagement surface 52 of the groove 50.

An example method for estimating a media level of a media stack in a printer includes storing a media level model correlating a picker metric of a media picker to pick media from the media stack to the media level; measuring a current picker metric when the media picker picks the media from the media stack during a print job; adding the current picker metric to a historical data set; updating the media level model by generating a regression for the historical data set; and based on the current picker metric and the updated media level model, estimating a current media level of the media stack.

A method for printing on an item, that includes generating a scanned shape of the item, performing a lookup of the scanned shape in a shape database, making a determination that the scanned shape matches a saved shape in the shape database, and based on the determination, measuring an item rotation of the item, generating a transformed print image based on the item rotation, causing a printhead to print on the item using the transformed print image.

A printing device includes a supply roller on which a roll of substrate is wound, and a tension motor to apply a tension to the roll of substrate. The printing device includes a drive roller to advance the substrate from the roll through a print zone, a drive roller motor to rotate the drive roller, and a drive roller motor controller to apply a drive roller motor signal to the drive roller motor. The printing device includes a closed loop tension controller to adjust the tension applied by the tension motor to the roll of substrate based on the drive roller motor signal applied to the drive roller motor.

A drying device positioned between a printing apparatus that performs prints on a first surface of fabric transported in a transport direction, and a receiving device that receives the fabric after the fabric has passed through the printing apparatus, includes a blowing unit capable of blowing out gas to the first surface, and a suctioning unit positioned on a side close to a second surface side of the fabric in a blowing direction of the blowing unit, and capable of suctioning the gas. The blowing unit is configured to blow out gas in a state where the fabric is supported by respective support members in at least one of an upstream position and a downstream position of the blowing unit and the suctioning unit in a transport direction of the medium. Then a blowing direction of the gas faces downstream in the transport direction.

A liquid discharge method includes: calculating a first print time to print original image data on a print medium; generating rotated image data by rotating the original image data by a predetermined angle; calculating a second print time to print the rotated image data on the print medium; comparing the first print time and the second print time to determine whether the first print time is larger than the second print time; generating print image data according to the rotated image data in response to a determination in which the first print time is larger than the second print time; generating print image data according to the original image data in response to a determination in which the first print time is smaller than the second print time; and displaying a position and a direction of the print medium based on the print image data.

A printer and a method for printing of pages on a continuous media, such as labels, with any desired or practical spacing using fixed head printheads that have spacing limitations for printing pages on the continuous media. The printer can be configured to detect a top of form mark on the continuous media as it is moved through a media path in the printer and initiating printing of an image on an adjacent page or label at the position indicated by the top of form mark.

A finisher apparatus includes an actuator to control a component of the finisher apparatus to perform a finishing operation on a print medium. A sensor is provided to sense the print medium in a print-medium path in the finisher apparatus. A processor is coupled to the actuator and the sensor. The processor is to execute instructions. The instructions are to actuate the actuator to eject the print medium from the print-medium path in response to a signal from the sensor indicative of a jam of the print medium in the finisher apparatus.

Method and tools for sensing pen-to-reference space (PRS) are disclosed. Example removable pen-to-reference space (PRS) sensing tools for a printer comprise proximity sensors and a body. The body has a printer mounting portion, corresponding to a printhead mounting socket of the printer, and a sensor portion, hosting the proximity sensor.

There is disclosed a device, method and program, wherein the method comprises detecting a power increase, during which power usage increases by at least a threshold amount over an expected power usage during movement of a printer carriage over a print medium along a scan axis. The increase method further comprises detecting a location of the printer carriage at a time of the detected power usage increase and determining, based on the detected location of the printer carriage, whether the print medium is damaged.