Konica Minolta, Inc.

Konica Corporation

Konica Minolta Business Technologies, Inc.

Makoto Ui

Fumio Haibara

Shigeru Okazaki

Masahiro Matsuo

Norio Joichi

Noriaki Takahashi

Hajime Nakamura

Jun Yokobori

Satoshi Sakata

Youbao Peng

Hiroyuki Watanabe

Motoki Nakamichi

Masahiro Yoshino

Tetsuya Niitsuma

Ken Miyazaki

Kazunori Katada

Shingo Sasami

Toshiaki Tomino

Akihiko Ooishi

Toshihiro Wazumi

Asahi Ebe

Eiji Anzai

Tomoyuki Hayakawa

An image forming apparatus includes: a conveyer that conveys continuous paper; an image creator that outputs an image onto the continuous paper, a heat source that imparts heat to the continuous paper; and a hardware processor that controls a printing action for forming an image on the continuous paper conveyed in a forward direction by the conveyer, using the image creator and the heat source, wherein when interrupting the printing action, the hardware processor performs withdrawal control in which the continuous paper is conveyed in a reverse direction such that a final image formed on the continuous paper before interruption of the printing action reaches a withdrawal position defined upstream of the heat source in the forward direction.

Image forming apparatus, image forming system, control method for image forming apparatus, and program

The image formation apparatus includes a transport frame including a maximum front-to-back medium width passage area defined in an area between a first back side passage line and a first front side passage line, and allowing a continuous medium of a maximum front-to-back width to pass therethrough, and a minimum front-to-back medium width passage area defined in an area located inside the maximum front-to-back medium width passage area between a second back side passage line and a second front side passage line, and allowing a continuous medium of a minimum front-to-back width to pass therethrough, in a state where the transport frame is drawn out most frontward and a toner replenishment door is opened most wide downward, when the toner replenishment door is seen downward projectively, at least a portion of the first back side passage line being covered with the toner replenishment door.

Image formation apparatus

An image forming apparatus includes: a sheet conveyance section configured to convey a long sheet along a sheet feeding path; and an image forming section configured to form an image on the long sheet conveyed by the sheet conveyance section, the sheet conveyance section including a conveyance unit that includes a first conveyance roller and a second conveyance roller for conveying the long sheet in a sandwiching manner, and is movable along a sheet conveyance direction in a state where the long sheet is conveyed through the sheet feeding path.

Image forming apparatus

An image forming apparatus includes the following. A conveying unit conveys a continuous sheet at least longer than a length of the apparatus itself. A first rotating member can be pressed to and separated from a second rotating member. The first rotating member can be rotated separated from the second rotating member. The continuous sheet can be stopped and held when the first rotating member is separated from the second rotating member. The image forming apparatus further includes a control unit. When the continuous sheet is stopped and held and the rotation of the first rotating member is started separated from the second rotating member, the control unit moves at least one of the first rotating member and the continuous sheet so that the continuous sheet is not in contact with the first rotating member, and then the control unit starts rotation of the first rotating member.

Image forming apparatus for forming an image on a continuous sheet while reducing damage to a rotating member

An image-forming apparatus forms an image on a roll sheet. A printer receives the roll sheet, forms the image thereon and ejects the image-formed roll sheet to a reel. A sheet position sensor, which is positioned near the printer, measures a position of the roll sheet along a width direction thereof. A control portion receives positional measurement data about the position of the roll sheet along the width direction thereof from the sheet position sensor and controls at least one of start time of image-forming operation in the printer and an image-writing position of the printer by settling at least one of the start time of image-forming operation and the image-writing position based on the positional measurement data.

Image-forming apparatus that forms an image on a sheet of continuous recording medium

A fixing device and An image forming apparatus include: a first pressure roller having an elastic layer in a surface layer section; a fixing belt wound on the elastic layer of the first pressure roller; a second pressure roller that presses the elastic layer of the first pressure roller via the fixing belt, the second pressure roller forming a fixing nip portion between the fixing belt and the second pressure roller; and a guide member that guides the fixing belt in such a manner as to separate the fixing belt from a protruding portion of the elastic layer, the protruding portion being formed on an entrance side of the fixing nip portion in a sheet conveying direction.

Fixing device and image forming apparatus

An image forming apparatus includes an image forming section to form an image on a sheet, a reversing section to reverse the sheet between front and rear surfaces, and an apparatus main body that houses the image forming section and the reversing section. The reversing section includes a lower-side horizontal conveying path arranged horizontally and adapted to convey the sheet, an upper-side horizontal conveying path arranged vertically above the lower-side horizontal conveying path and extending parallel to the lower-side horizontal conveying path, and a connection conveying path which connects the lower-side horizontal conveying path and the upper-side horizontal conveying path and is detachably coupled to the upper-side horizontal conveying path. The reversing section is horizontally supported by the apparatus main body so as to be movable along a direction in which the sheet is sent from the lower-side horizontal conveying path or upper-side horizontal conveying path to the connection conveying path.

A transporting device includes steering rollers, a center roller which is disposed between the steering rollers and deflection-detecting sensors that are positioned downstream from the steering rollers. When a sheet of paper has a width which is narrower than a width of a reference sheet of paper, the positional deflection of the sheet of paper is corrected by transporting the sheet of paper to a shift roller with the sheet of paper being nipped by the center roller and thrusting a forward end of the sheet of paper against a shift roller. When a sheet of paper has a width which exceeds the width of the reference sheet of paper, the positional deflection of the sheet of paper is corrected by rotating the steering rollers separately based on a detected result of the sensors with the sheet of paper being nipped by the steering rollers.

Transporting device and image forming apparatus using the same

Display with operation switch

The invention concerns an image forming apparatus provided with an automatic writing-position determining device for forming an image always at a correct position on the recording material. The image forming apparatus includes an image forming section to form an image by writing each of scanning lines, an end position detecting section to detect an end position of a recording material in a direction orthogonal to a conveyance direction of the recording material, and a selecting section to select either an automatic writing-position determining mode or a predetermined writing-position determining mode. When the selecting section selects the automatic writing-position determining mode, the image forming section commences an image writing action from a writing start position determined on the basis of a detected result of the end position detecting device. When the selecting section selects the predetermined writing-position determining mode, the image forming section commences the image writing action from a predetermined writing start position set in advance.

An image forming apparatus includes: a writing device for writing an image on the basis of image data thereof; a controller for controlling a writing position in a primary scanning direction by the writing device; a conveying device for conveying a recording material; and a position detecting sensor for detecting an edge of the recording material, which is conveyed by the conveying device in the primary scanning direction as an absolute position. The controller determines the writing position in the primary scanning direction by the writing device on the basis of a position of the edge of the recording material in the primary scanning direction detected by the position detecting sensor, and controls the writing position of the writing device in the primary scanning direction.

Method and apparatus for image formation while considering a position of a transfer sheet in a primary scanning direction

An image forming apparatus has: an image memory for storing image data; an image recording device having an image recording position for recording an image onto a recording material at the image recording position; a conveying device for conveying the recording material to the image recording position; and an image correction device for correcting an angle of the image data in accordance with inclination of the recording material conveyed to the image recording position. An image is recorded on the recording material by the image recording device on the basis of the image data corrected by the image correction device.

Image forming apparatus for correcting an angle of inclination of the recording material and for recording corrected image

An image forming apparatus includes: a recording material accommodating device for accommodating recording materials; an image forming device for forming an image on the recording material; a conveyance section for conveying the recording material fed from the recording material accommodating device to the image forming device; a reversal and re-feeding device having a sheet reversal section and a sheet re-feeding section for conducting image formation on two sides of the recording material. After the image is formed by the image forming device on one side surface of the recording material conveyed from the recording material accommodating device through the conveyance section, the recording material is conveyed to the reversal and re-feeding device, and conveyed again to the image forming device through the sheet re-feeding section of the reversal and re-feeding device and the conveyance section, and an image is formed on the other side surface of the recording material by the image forming device. The image forming apparatus further includes a first regulating device provided on the sheet re-feeding section of the reversal and re-feeding device for regulating the recording material conveyed; and a second regulating device provided on the conveyance section in the vicinity of the image forming device for regulating the recording material conveyed.

A developer replenishing apparatus includes: a developer storing container for storing a developer therein; a first driving source for rotating the developer storing container to supply the developer; a developer reservoir section for receiving the developer supplied from the developer storing container; a conveying screw for replenishing the developer in the developer reservoir section onto a developing device; a second driving source for driving the conveying screw; and a stirring member for stirring the developer in the developer reservoir section, the stirring member having a first and second one-way clutches provided on a driving shaft thereof. The stirring member is driven by the first driving source through the first one-way clutch, and driven by the second driving source through the second one-way clutch.

Developer replenishing apparatus

A developing agent replenishing device includes: a developing agent storing container having a spiral protrusion in an interior thereof, including a container main body for storing therein a developing agent and a movable cover for opening or closing a developing agent discharging opening provided on one end of the container main body; a container mounting section to which the storing container is mounted, wherein the developing agent stored in the storing container is discharged by rotating the storing container; a developing agent reserving section for reserving therein the developing agent discharged from the storing container; a cover engagement portion for engaging with the movable cover when the storing container is mounted to the container mounting section; and a holding and moving device for holding a part of the storing container and for moving the storing container when the storing container is mounted to the container mounting section. The movable cover and the storing container main body are relatively moved by moving the storing container by the holding and moving device, thereby the discharging opening is opened, and consequently communicates with the developing agent reserving section so that the developing agent in the storing container can be discharged.

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Hachioji, Japan

Makoto Ui