Seiko Epson Corporation

Seiko Epson Corporaition

Yoichi Mitsui

Takeshi Sowa

Nozomu Inoue

Toru Fujita

Takatomo Fukumoto

Masayuki Kanazawa

In a printing apparatus, when an image printed based on image data of an n-th print job as an n-th print target among designated two or more print jobs is an n-th image, and an image printed based on image data of a (n+1)-th print job as a (n+1)-th print target among the designated two or more print jobs is a (n+1)-th image, n-th post-processing setting information and (n+1)-th post-processing setting information are compared to determine whether or not setting of the post-processing needs to be changed, and when the setting of the post-processing does not need to be changed, print setting is changed so as not to print information based on post-processing setting information set to be printed at a position between the n-th image and the (n+1)-th image on the medium.

Printing apparatus, print control apparatus, and print control program

A printing apparatus includes a communication unit configured to receive print jobs, a storage unit configured to accumulate the print jobs received by the communication unit, a printing unit configured to print the print jobs, and a control unit. The control unit acquires print setting information related to the print jobs via the communication unit, performs collective setting of a print order and/or the number of print copies of the print jobs accumulated in the storage unit in accordance with the print setting information, and causes the printing unit to perform printing in accordance with the collective setting of the print jobs accumulated in the storage unit.

Printing apparatus, printing method, and printing control program for performing print job with desired print settings

A printing device includes a control section that is configured to receive designation of a first print mode or a second print mode for one or more print jobs and cause the printing section to execute printing in accordance with print setting, wherein a consumption amount of a medium in the printing of one print job in the second print mode is larger than a consumption amount of the medium in the printing of one print job in the first print mode and the control section acquires, from among the print setting information, specific setting information that causes a difference in the consumption amount of the medium between printing in the first print mode and printing in the second print mode from different acquisition sources for the print job for which the first print mode is designated and the print job for which the second print mode is designated.

Printing device

A dot data generating method uses a first inkjet recording device and a second inkjet recording device, in which a first image is printed using the first inkjet recording device based on first dot data which determines formation or non-formation of dots, and second dot data is generated to print a second image based on the second dot data using the second inkjet recording device in which a speed of a relative movement of the inkjet head and a recording medium when printing an image is small compared to the first inkjet recording device. The dot data generating method includes generating the second dot data by converting the first dot data such that data of each dot in which formation of a dot is determined is converted to form a plurality of dots at predetermined intervals between the dots in a relative movement direction in place of the each dot.

Dot data generating method, dot data generating device, inkjet recording device, and inkjet recording system

In a case where a first image is printed on a recording medium based on first dot data using the first inkjet recording device and a second image is printed based on second dot data on another recording medium using the second inkjet recording device in which ejected ink drops land onto a recording medium with a small degree of dispersion in a main scanning direction compared to the first inkjet recording device, the first dot data is converted to generate the second dot data such that data of a large dot and a medium dot is converted so as to form a plurality of dots having sizes smaller than the dot size at predetermined intervals between the dots in the main scanning direction in place of the large dot and the medium dot.

The advantage of the invention is to provide an inkjet recording method and the like in which an unprinted portion due to a multipath method is not left in a back end portion of a printed image and the value as a printed material is not undermined in a case where a printing operation by a multipath method is temporarily stopped in the middle and the printing operation is resumed after feeding a recording medium. A printing operation is temporarily stopped after conducting a back end portion line formation process for forming a raster line so as to prevent an unprinted portion due to an multipath method from being left in a back end portion of a printed image which has been printed halfway when temporarily stopping the printing operation in the middle.

Inkjet recording device, inkjet recording method, and inkjet recording system

An image forming apparatus including: a photoconductor, adapted such that an electrostatic latent image is formed thereon and extending in a first direction; and an optical scanner, operable to emit a light beam to expose the photoconductor while scanning in the first direction, wherein: the photoconductor and the optical scanner define a space therebetween; and the space allows air to flow therethrough in the first direction.

Image forming apparatus

The present invention relates to an optical scanning device in which a light beam is incident twice on a deflective reflecting facet and its object is to reduce curvature in scanning line trail or make the curvature substantially zero, or correct scanning line displacement due to the curvature in scanning line trail. Two stationary plane mirrors () are disposed to face a deflective reflecting facet () which can be rotated about its rotational axis () such that a light beam (a) being incident on and reflected from the deflective reflecting facet () is reflected by the two stationary plane mirrors () sequentially. The reflected light beam (a) is incident on and reflected by the deflective reflecting facet () again. Assuming that a plane being parallel to the rotational axis () and including the light beam (a) which is first incident on the deflective reflecting facet is an incident plane, the central ray of an emergent light beam (a) when the emergent light beam (a) after the second reflection by the deflective reflecting facet () is on the incident plane and a straight line as the central ray of a light beam being projected on the incident plane when the deflective reflecting facet () is revolved by the maximum rotational angle are set substantially parallel to each other.

Optical scanning device and cover glass cleaning mechanism for optical scanning device

An optical scanner emits a light beam in accordance with an image forming signal and deflects the light beam in a first direction. A scanned face is adapted to be scanned by the deflected light beam to form a scanning line while being moved in a second direction perpendicular to the first direction, thereby forming a latent image thereon. A virtual scanned face is defined as a plane including the scanning line and orthogonal to an optical axis of the optical scanner. The shape of a beam spot formed by the light beam incident on the virtual scanned face is approximated to an ellipse. The scanned face is inclined from the virtual scanned face so as to rotate about the scanning line, in accordance with an inclined angle of an major axis of the ellipse from the second direction on the virtual scanned face.

In order to determine an arrangement of an optical scanning device provided with a rotary polygon mirror having a plurality of reflective faces, it is determined a direction of polarization of light which is to be made incident on one of the reflective faces and to be reflected and deflected in accordance with a rotary action of the polygon mirror; and it is determined a direction from which the light is made incident on the one of the reflective faces, such that a variation of reflectivity of the light depending on a variation of an incident angle thereof in accordance with the rotary action of the polygon mirror compensate for a positional variation of reflectivity on the one of the reflective faces.

Optical scanning device and image forming apparatus incorporating the same

In order to measure a characteristics of a light beam which is repetitively deflected by a light scanning device within a first range in a first direction at a first velocity, there is provided a plate formed with at least one slit extending in a direction angled from the first direction and having a constant width. The plate is moved within the first range in the first direction at a second velocity which is sufficiently lower than the first velocity. A peak value of an optical power of light passing through the slit every time is detected when the deflected light beam crosses the slit being moved, thereby obtaining peak values at plural positions in the first direction. The peak values are displayed on a screen collectively in such a manner that positions on the screen correspond to the positions in the first direction.

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Nagano, Japan

Yoichi Mitsui