A printing device that performs printing on a medium includes an inkjet head, a main scan driving unit, a sub scan driving unit, and a control unit, where the control unit sets a sub-scanning movement amount based on a basic movement amount, which is a basic movement amount set according to print conditions, and a value indicating a distance for increasing or decreasing the sub-scanning movement amount in the print conditions set at the time of inputting an input correction value. Furthermore, a storage is further provided, which stores a first correction coefficient used when the basic movement amount is within a first range, and a second correction coefficient used when the basic movement amount is within a second range smaller than the first range, and the control unit sets the sub-scanning movement amount based on the basic movement amount and the calculated correction value.

There is provided a liquid discharge apparatus including: a head, a fixing device and a mist collector configured to collect a mist of a liquid. The mist collector and the fixing device are arranged side by side in this order in a first direction. The mist collector is provided with an air channel having a suction port and an exhaust port. The air channel has: a first part and a second part connected to an other end of the first part. The exhaust port is opened, in the second part, toward any one of directions which are: a direction including a direction opposite to the first direction as a directional component thereof, a third direction orthogonal to the first direction and a second direction, and a direction opposite to the third direction.

A printhead in a digital printing includes an array of light sources for exposing a photosensitive medium moving past the printhead. Artifacts are reduced in a high-speed print mode by defining first and a second power level control values that differ by at least 20%. The light sources used to print odd-numbered image pixels are activated responsive to the first power level control value and the light sources used to print even-numbered image pixels are activated responsive to the second power level control value.

A printhead in a digital printing includes an array of light sources for exposing a photosensitive medium moving past the printhead. Artifacts are reduced in a high-speed print mode by defining first and a second power level control values that differ by at least 20%. The light sources used to print odd-numbered image pixels are activated responsive to the first power level control value and the light sources used to print even-numbered image pixels are activated responsive to the second power level control value.

According to an embodiment, a print head includes one or more light emitting element arrays, a light emission control circuit, and one or more drive circuit arrays. The light emitting element arrays include a plurality of light emitting elements arrayed continuously along a main scanning direction. The light emission control circuit outputs drive signals of different phases in units of a light emitting element group configured by a predetermined number of continuous light emitting elements included in the light emitting elements. The drive circuit arrays include a plurality of drive circuits, the drive circuits cause the light emitting elements to emit light individually based on the drive signals.

According to an embodiment, a print head includes one or more light emitting element arrays, a light emission control circuit, and one or more drive circuit arrays. The light emitting element arrays include a plurality of light emitting elements arrayed continuously along a main scanning direction. The light emission control circuit outputs drive signals of different phases in units of a light emitting element group configured by a predetermined number of continuous light emitting elements included in the light emitting elements. The drive circuit arrays include a plurality of drive circuits, the drive circuits cause the light emitting elements to emit light individually based on the drive signals.

Apparatus and method for using a line laser (LL) to quickly mark a substrate or media by utilizing a laser additive on/within the substrate/media, which greatly reduces the power requirement for marking the substrate/media. The combination of the LL wide swath (>305 mm) and the improved media/surface sensitivity to laser wavelength allows the LL marking system to achieve faster marking than other systems. The LL is mounted over a transport which transports the sensitized substrate/media past the LL for marking. The desired image is projected from the LL line by line in synch with the moving media and once the media passes the beam path of the LL, marking is complete. In this case, the media has been physically-altered via the heat generated by the LL interacting with the photosensitized media and is permanent. A second method would use a photosensitizing agent coated on top of the media to be marked.

To perform appropriate printing on a workpiece moving along a three-dimensional movement path. A laser marking apparatus includes: a laser light output section; a laser light scanning section; a print data generation section; a marking control section; and a print pattern correction section that corrects a print pattern received by an input interface based on movement path information related to a movement path of a workpiece moving with a change in a posture in a three-dimensional space. The print data generation section generates print data based on the print pattern corrected by the print pattern correction section.

To perform appropriate printing on a workpiece moving along a three-dimensional movement path. A laser marking apparatus includes: a laser light output section; a laser light scanning section; a print data generation section; a marking control section; and a print pattern correction section that corrects a print pattern received by an input interface based on movement path information related to a movement path of a workpiece moving with a change in a posture in a three-dimensional space. The print data generation section generates print data based on the print pattern corrected by the print pattern correction section.

A laser printhead assembly for a laser printhead is disclosed herein. The laser printhead assembly may include a laser containment door; and a laser containment housing that is configured to form a sealed enclosure with a label support of a rewriteable label. The sealed enclosure may be configured to include the rewriteable label and the laser printhead. The laser containment door, in a laser-enabled position, may be configured to permit the laser printhead, via a light beam, to modify the rewriteable label and the laser containment door, in a laser-disabled position, may be configured to prevent a light beam from escaping the laser containment housing.