Seiko Epson Corporation

Mitsuhisa Ando

Kazuyoshi Tanase

Hiroshi Wada

Toru Takahashi

Toru Miyamoto

Takamitsu Kondo

Kimitaka Kamijo

Masahiko Yamada

Hiroshi Wanibuchi

Masaki Hyogo

Shun Sakaibara

An image processing device including a user interface, an image data inputting section that inputs image data, a resolution converting section that converts the image data to resolution corresponding to a printing device, a color converting section that generates ink amount data, and a print data generating section that generates print data based on the ink amount data, in which the resolution converting section includes a color inputting section that inputs the spot color and the specific condition for performing a spot color replacement of replacing the spot color in the specific condition by the color converting section through the user interface, and a thinning processing section that performs a simple thinning process on a spot color region including the spot color in a case in which a thinning process of converting the resolution of the image data to a second resolution lower than the first resolution is performed.

Image processing device and printing system

A label printer can appropriately print an image and attribute information on a label. A label printerhas a printhead, and a control unitthat prints an image and attribute information for the image on a labelby the inkjet head. The labelis separated by a half-cutinto a first label partand a second label part, and removably affixed to a continuous liner. The control unitof the label printerincludes an image printing control unitthat prints an image on the first label part, and an attribute information printing control unitthat prints image attribute information on the second label part

Label printer and label printing system

A head unit is provided that includes a plurality of head groups having a first head and a second head in a direction which crosses a transport direction of a medium. Color difference is obtained which indicates difference in color between patches formed for each band using dots having the same dot diameter from among a plurality of patches based on the result of color measurement performed on a test pattern which includes the plurality of patches for each band, the plurality of patches being formed for each head group using dots having different dot diameters. The amount of first ink and the amount of second ink, which are respectively ejected from the first head and the second head which are included in all the head groups, are adjusted such that the dot diameter becomes the dot diameter which is determined based on the color difference.

Printing apparatus and printing method

A printer having multiple stages of nozzles is controlled to avoid or minimize blank space between print portions when printing on roll paper. A controller in communication with the printer is configured to determine if last partial print data to be printed contains blank raster data. If so, the controller calculates the difference between a total number of rasters in the first through the last partial print data and the number of blank rasters in the last partial print data, prints the last partial print data, and controls the paper transportation mechanism to advance the roll paper only the calculated distance to eliminate excess blank space between print portions. The functionality of the controller is also embodied in a method for controlling a printer as described above.

Printing system and method to eliminate excess blank space between print positions

A print head pressure mechanism is disclosed that maintains uniform pressure between the thermal print head and platen roller regardless of variations in parts precision, and thus prints with uniform print density. The print head pressure mechanism has first and second support shafts disposed at both sides in the direction of a heat element line L of the thermal print head, a frame member for supporting the print head, and having first and second contact parts for contacting the first and second support shafts, and an one or more urging unit for pushing the print head to the platen with the urging means operating on the side of the print head opposite the side to which the heat elements are disposed. When the platen is separated from the print head, the platen axis and heat element line L of the print head are not parallel to each other. When the platen is in contact with the print head heat elements, and the first support shaft is in contact with the first contact part, the platen axis is substantially parallel to the heat element line L of the print head heat elements.

Print head pressure mechanism, and a printer using the same

A ribbon advance mechanism has a advancing spool, a metal support shaft for supporting a advancing spool base part for rotation, and a coil spring attached between a base part of the advancing spool and the support shaft. The coil spring is mounted on a center part of the support shaft in a state in which it is slightly spread. One end part of a hook of the coil spring is fixed to a slit of the advancing spool base part, whereby the advancing spool is allowed to rotate only in an advancing direction (R direction), and when power is not transferred to the advancing spool, an ink ribbon is not slack. The coil spring is placed in a enclosed space by the base part of the advancing spool and a base part of the support shaft.

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Matsumoto, Japan

Mitsuhisa Ando