Disclosed is a workpiece processing apparatus that performs a predetermined processing on a workpiece. The workpiece processing apparatus includes: a workpiece table configured to place the workpiece thereon; a processor configured to process the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the processor; a position measuring device configured to measure a position of the movement mechanism; a detector configured to detect a position of the workpiece placed on the workpiece table; and a corrector configured to calculate a positional correction amount of the workpiece table based on a measurement result of the position measuring device and a detection result of the detector.

Disclosed is a workpiece processing apparatus that performs a predetermined processing on a workpiece. The workpiece processing apparatus includes: a workpiece table configured to place the workpiece thereon; a processor configured to process the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the processor; a position measuring device configured to measure a position of the movement mechanism; a detector configured to detect a position of the workpiece placed on the workpiece table; and a corrector configured to calculate a positional correction amount of the workpiece table based on a measurement result of the position measuring device and a detection result of the detector.

A print apparatus is disclosed. In some examples, the print apparatus comprises a print head to deposit print agent onto a substrate; a detector to detect a fiducial; a first light source to back-illuminate the substrate, such that light from the first light source is to be detected by the detector through the substrate; and processing apparatus. The processing apparatus is to operate the print head to deposit print agent to form a first fiducial on a first side of the substrate, the first fiducial comprising a shape of a first colour and having a first dimension, and a background of print agent of a second, different colour, wherein the first dimension of the shape does not exceed a corresponding dimension of the background; operate the print head to deposit print agent to form a second fiducial on a second, opposite side of the substrate, the second fiducial comprising an inverted version of the shape of the first colour; operate the first light source to back-illuminate the substrate; operate the detector to detect the first and second fiducials; and determine whether the first fiducial is aligned with the second fiducial. A method and a machine-readable medium are also disclosed.

A print apparatus is disclosed. In some examples, the print apparatus comprises a print head to deposit print agent onto a substrate; a detector to detect a fiducial; a first light source to back-illuminate the substrate, such that light from the first light source is to be detected by the detector through the substrate; and processing apparatus. The processing apparatus is to operate the print head to deposit print agent to form a first fiducial on a first side of the substrate, the first fiducial comprising a shape of a first colour and having a first dimension, and a background of print agent of a second, different colour, wherein the first dimension of the shape does not exceed a corresponding dimension of the background; operate the print head to deposit print agent to form a second fiducial on a second, opposite side of the substrate, the second fiducial comprising an inverted version of the shape of the first colour; operate the first light source to back-illuminate the substrate; operate the detector to detect the first and second fiducials; and determine whether the first fiducial is aligned with the second fiducial. A method and a machine-readable medium are also disclosed.

According to one embodiment, there is provided a printer including a print head, a platen roller, a sheet position sensor, an antenna, and a movable portion. The print head is configured to print on a strip-shaped sheet. The platen roller is configured to move the sheet pinched between the platen roller and the print head along a longitudinal direction of the sheet. The sheet position sensor is provided on a substrate disposed on an upstream side of the print head in a conveyance direction of the sheet, and is configured to detect a position of the sheet. The antenna is provided on the substrate and is configured to write information to a wireless tag provided on the sheet. The movable portion is configured to move the substrate along a width direction of the sheet.

According to one embodiment, there is provided a printer including a print head, a platen roller, a sheet position sensor, an antenna, and a movable portion. The print head is configured to print on a strip-shaped sheet. The platen roller is configured to move the sheet pinched between the platen roller and the print head along a longitudinal direction of the sheet. The sheet position sensor is provided on a substrate disposed on an upstream side of the print head in a conveyance direction of the sheet, and is configured to detect a position of the sheet. The antenna is provided on the substrate and is configured to write information to a wireless tag provided on the sheet. The movable portion is configured to move the substrate along a width direction of the sheet.

A sheet detection device includes a sheet guide disposed between a sheet feeding opening into which a sheet is inserted and a printing mechanism of printing on the sheet, the sheet guide including a guide surface through which the sheet passes, a sheet detector including an optical sensor that detects a predetermined position of the sheet, an opening formed in the guide surface, the sheet detector being disposed inside the opening and the optical sensor being exposed through the opening, and a transparent guide cover provided in the guide surface to cover at least a first border position between the sheet detector and the opening on an upstream side in a sheet transport direction.

In a printing device, a controller is configured to perform: (a) writing; (b) printing; (c) determining; (d) conveying; (e) writing; (f) printing; and (g) writing. The (a) writing writes prescribed information to an information storage medium provided in a first print medium. The (b) printing prints a prescribed image on the first print medium. In response to determining in (c) that the printing quality of the prescribed image is not good for the first print medium, the (d) conveying conveys a continuous medium in a reverse direction, the (e) writing writes void information to the information storage medium provided in the first print medium, the (f) printing prints a VOID image on the first print medium after the (e) writing is performed, and the (g) writing writes the prescribed information to the information storage medium provided in a second print medium prior to performing the (f) printing.

In a printing device, a controller is configured to perform: (a) writing; (b) printing; (c) determining; (d) conveying; (e) writing; (f) printing; and (g) writing. The (a) writing writes prescribed information to an information storage medium provided in a first print medium. The (b) printing prints a prescribed image on the first print medium. In response to determining in (c) that the printing quality of the prescribed image is not good for the first print medium, the (d) conveying conveys a continuous medium in a reverse direction, the (e) writing writes void information to the information storage medium provided in the first print medium, the (f) printing prints a VOID image on the first print medium after the (e) writing is performed, and the (g) writing writes the prescribed information to the information storage medium provided in a second print medium prior to performing the (f) printing.

A printer for direct printing on a print substrate comprises a front support supporting a printing device; the front support to be arranged at a front side of a print substrate and to be aligned relative to a rear support across the print substrate in a contact-less manner.