公开(公告)号：US20180220029A1

公开(公告)日：2018-08-02

申请号：US15883123

申请日：2018-01-30

Applicant: Kyocera Document Solutions Inc.

Inventor： Shinji Hayashi

IPC: H04N1/21 ,  H04N1/00

CPC classification number: H04N1/2162 ,  G03G15/5062 ,  G03G15/55 ,  G03G2215/00569 ,  H04N1/00761 ,  H04N2201/0094

Abstract: An image forming apparatus includes an identification-mark making unit. The identification-mark making unit makes a page identification mark for identifying a page, on a predetermined position of a paper sheet during printing. The identification-mark making unit, based on the page identification mark made in a previous printing, includes a correction/addition mark that indicates an existence of a correction page or an additional page since the previous printing in a part of the page identification mark when a new print output is performed.

公开(公告)号：US20180217548A1

公开(公告)日：2018-08-02

申请号：US15817289

申请日：2017-11-20

Applicant: FUJI XEROX CO., LTD.

Inventor： Makoto HAMATSU

IPC: G03G15/00

CPC classification number: G03G15/5062 ,  G03G15/01 ,  G03G15/6523

Abstract: An image forming apparatus includes an image forming section, a post-processing unit, and a controller. The image forming section forms an image on a recording medium. The post-processing unit processes the recording medium obtained after the image forming section forms the image. The controller controls a post-processing execution time of the post-processing unit on the basis of information obtained by reading at least one control pattern from the recording medium. The at least one control pattern is formed to control the image forming section.

公开(公告)号：US20180203645A1

公开(公告)日：2018-07-19

申请号：US15867029

申请日：2018-01-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Aya Ito

IPC: G06F3/12 ,  H04N1/00 ,  G03G15/08 ,  G03G15/01 ,  G03G15/20

CPC classification number: G06F3/1201 ,  B41J13/32 ,  G03G15/0189 ,  G03G15/0848 ,  G03G15/20 ,  G03G15/5062 ,  G03G15/605 ,  G03G15/607 ,  G03G15/6567 ,  G03G2215/00358 ,  G03G2215/00383 ,  G06F3/1205 ,  G06F3/1208 ,  G06F3/1231 ,  G06F3/1253 ,  H04N1/0057

Abstract: An image forming apparatus includes a selection unit configured to select a sheet type, an image processing unit configured to perform image processing on image data, based on a correction condition that corresponds to the selected sheet type, a conveyance unit configured to convey a sheet, and an image forming unit configured to form an image on the sheet, based on the image data, wherein the image processing unit performs the image processing on the image data, based on a first correction condition that corresponds to a sheet to be conveyed by the conveyance unit in a first direction, and wherein the image processing unit performs the image processing on the image data, based on a second correction condition that corresponds to a sheet to be conveyed by the conveyance unit in a second direction, the second direction being different from the first direction.

公开(公告)号：US10018952B2

公开(公告)日：2018-07-10

申请号：US15484476

申请日：2017-04-11

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Eizo Kurita

IPC: G03G15/00

CPC classification number: G03G15/65 ,  G03G15/2028 ,  G03G15/5062 ,  G03G15/6529 ,  G03G15/657 ,  G03G2215/00645 ,  G03G2215/00945 ,  G03G2215/0132

Abstract: An image forming apparatus according to an embodiment includes a first roller arranged on a conveyance path of a sheet and a second roller arranged downstream of the first roller in the conveyance path. A control section calculates a deflection amount of the sheet nipped by the first roller and the second roller based on a conveyance speed of the sheet conveyed along the conveyance path. When the calculated deflection amount is smaller than a predetermined lower limit value, the control section increases the rotation speed of the first roller and decreases the rotation speed of the second roller.

公开(公告)号：US10018951B2

公开(公告)日：2018-07-10

申请号：US15472572

申请日：2017-03-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tohru Saito ,  Akihiko Uchiyama ,  Hisashi Nakahara ,  Go Shindo

IPC: G03G15/00

CPC classification number: G03G15/5062 ,  G03G15/0806 ,  G03G15/5008 ,  G03G15/5087 ,  G03G15/55 ,  G03G2221/1657 ,  H04N1/00

Abstract: A control portion has a conversion portion that converts image data to be used for forming a recorded image by using either a first conversion condition which has been set such as to obtain a first gradation characteristic in the image to be formed on the recording material when a first image forming operation is executed or a second conversion condition which has been set such as to obtain a second gradation characteristic, which is different from the first gradation characteristic, in the image when a second image forming operation is executed, a peripheral velocity ratio between an image bearing member and a developer bearing member being larger during the second image forming operation than during the first image forming operation, and enables the first image forming operation or the second image forming operation to be performed on the basis of converted image data.

公开(公告)号：US10012938B2

公开(公告)日：2018-07-03

申请号：US15347263

申请日：2016-11-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yu Miyajima

IPC: G03G15/04 ,  G03G15/00 ,  F21V7/08 ,  G03G15/043 ,  F21Y115/10 ,  F21Y115/15

CPC classification number: G03G15/50 ,  F21V7/08 ,  F21Y2115/10 ,  F21Y2115/15 ,  G03G15/043 ,  G03G15/5062 ,  G03G2215/0145

Abstract: Provided is an illumination optical system includes: a light source; and a light guiding member configured to guide a light flux emitted from the light source to an illuminated surface, the light guiding member having: an incident surface into which the light flux from the light source enters; an ellipsoidal reflection surface configured to reflect the light flux from the incident surface; and an exit surface from which the light flux reflected by the ellipsoidal reflection surface exits, in which the light source is arranged so as to be separated from a first focal point of the ellipsoidal reflection surface at a position farther from the illuminated surface, in a direction perpendicular to a light emitting surface of the light source.

公开(公告)号：US20180173478A1

公开(公告)日：2018-06-21

申请号：US15828820

申请日：2017-12-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takuya Hayakawa

IPC: G03G15/01 ,  G06F3/12 ,  G06K15/12

CPC classification number: G06F3/1252 ,  G03G15/0806 ,  G03G15/5008 ,  G03G15/5062 ,  G03G15/55 ,  G03G15/607 ,  G03G2215/00936 ,  G06F3/1208 ,  G06F3/1256 ,  G06F3/1265 ,  G06F3/1285 ,  G06K15/027 ,  G06K15/1219

Abstract: An image forming apparatus that corrects a print position of an image using an optimum reference side of a sheet when performing print position adjustment. Image data is converted based on conversion conditions. An image on a sheet is formed based on the converted image data. On the sheet, the image forming unit forms a test image for detecting a misalignment of a position of an image to be formed on a first surface of the sheet and a position of an image to be formed on a second surface, which is different from the first surface, of the sheet. Read data is acquired which is read from the test image and output from a reading device, and the conversion conditions are generated based on the read data and a selected reference position of the sheet.

公开(公告)号：US20180165044A1

公开(公告)日：2018-06-14

申请号：US15836084

申请日：2017-12-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hirotomo Tanaka ,  Munetaka Sakata

IPC: G03G15/00 ,  G06F3/12

CPC classification number: G06F3/1208 ,  G03G15/043 ,  G03G15/5062 ,  G03G2215/00569 ,  G03G2215/00776 ,  G06F3/1244

Abstract: An image forming apparatus includes a container in which a sheet is contained, an image forming unit configured to form an image on the sheet, a reading unit configured to read a test image formed on the sheet, and a controller. The image forming apparatus forms the test image on the sheet, reads the test image by the reading unit, and generates, based on a reading result of the reading unit, an image forming condition for correcting a shift between a position of an image to be formed on a first surface of the sheet and a position of an image to be formed on a second surface different from the first surface of the sheet, and determines a timing for the image forming unit to subsequently form the test image based on a time period during which the sheet is contained in the container.

公开(公告)号：US09977386B2

公开(公告)日：2018-05-22

申请号：US15420591

申请日：2017-01-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mitsuhiko Sato

IPC: G03G15/00 ,  G03G15/20

CPC classification number: G03G15/5062 ,  G03G15/2046 ,  G03G15/50 ,  G03G2215/00738 ,  G03G2215/0129

Abstract: An image forming apparatus determines, in a first mode, an image forming condition according to characteristic data, which is input by a user and represents characteristics of a sheet contained in a sheet container, causes a sensor to detect characteristics of a sheet, and stores characteristic data according to a result of the detection into a memory. The image forming apparatus determines, in a second mode with the characteristic data being stored in the memory, an image forming condition, based on the characteristic data stored in the memory before a result of detecting a characteristic of a sheet by the sensor is obtained. The image forming apparatus causes, in the second mode with the characteristic data being not stored in the memory, the sensor to detect characteristics of a sheet, and determines an image forming condition based on a result of the detection.

公开(公告)号：US20180120746A1

公开(公告)日：2018-05-03

申请号：US15794751

申请日：2017-10-26

Applicant: FUJI XEROX CO., LTD.

Inventor： Shigeru ARAI

IPC: G06F3/12

CPC classification number: G03G15/5062 ,  G03G15/556 ,  G03G21/203

Abstract: An image forming method includes performing image correction on a region where an image is to be corrected by using correction information set based on a development condition, the region being determined based on a density difference in the image to be formed.