Abstract: A cooling device which cools an inside of an image forming apparatus that forms an image on paper, the cooling device includes an overall cooler that cools an entire inside of the image forming apparatus using overall cooling air flowing inside the image forming apparatus, and a partial cooler that blows cooling air to a part to be cooled to cool the part to be cooled, in which volume of the cooling air on a leeward side of the overall cooling air is smaller than volume of the cooling air on a windward side of the overall cooling air in the partial cooler.

Abstract: An image forming apparatus includes a processing unit, a main frame, a drive source, and a door-type positioning panel. The processing unit performs at least part of image formation. The main frame supports the processing unit such that the processing unit is pulled out or housed. The drive source is provided on the main frame and connected to a first end of a processing drive shaft of the processing unit to provide rotative power. The door-type positioning panel positions and supports a second end of the processing drive shaft by using an insert hole. An end of the door-type positioning panel is supported by the main frame such that the panel swings on a support axis. The door-type positioning panel includes a fit hole that is closer to a swinging end of the panel than to the support axis and fits to a positioning shaft provided on the main frame.

Abstract: An image forming apparatus includes a processing unit, a main frame, a drive source, and a door-type positioning panel. The processing unit performs at least part of image formation. The main frame supports the processing unit such that the processing unit is pulled out or housed. The drive source is provided on the main frame and connected to a first end of a processing drive shaft of the processing unit to provide rotative power. The door-type positioning panel positions and supports a second end of the processing drive shaft by using an insert hole. An end of the door-type positioning panel is supported by the main frame such that the panel swings on a support axis. The door-type positioning panel includes a fit hole that is closer to a swinging end of the panel than to the support axis and fits to a positioning shaft provided on the main frame.

Abstract: An image forming apparatus that performs image formation on continuous paper having a toner image formed thereon by making the continuous paper pass through a nip section to fix the toner image to the continuous paper, the nip section being formed by heating at least one of a pair of fixing members and pressure-contacting the fixing members with each other, the apparatus including: a conveyance section which conveys the continuous paper; a blowing section which blows air to the heated fixing member; a pressure-contact separation section which switches the pair of fixing members between a pressure-contacted state and a separated state; and a control section which, after the image formation is finished, stops heating of the fixing member, separates the pair of fixing members with the pressure-contact separation section and blows the air to the heated fixing member with the blowing section.

Abstract: An image forming apparatus includes: an intermediate transfer belt to which a toner image is transferred in a primary transfer process; a transfer roller configured to transfer the toner image onto a long paper sheet in a secondary transfer process by following rotation of the intermediate transfer belt when pressed by the intermediate transfer belt; and a fixing device configured to fix the toner image transferred in the secondary transfer process by the transfer roller, onto the paper sheet; a temperature estimating unit; and a speed control unit, wherein the fixing device includes: a heating conveyance roller provided on a lower surface side of the paper sheet; and a fixing roller provided on an upper surface side of the paper sheet, the fixing roller facing the heating conveyance roller.

Abstract: An image forming apparatus includes: an intermediate transfer belt to which a toner image is transferred in a primary transfer process; a transfer roller configured to transfer the toner image onto a long paper sheet in a secondary transfer process by following rotation of the intermediate transfer belt when pressed by the intermediate transfer belt; and a fixing device configured to fix the toner image transferred in the secondary transfer process by the transfer roller, onto the paper sheet; a temperature estimating unit; and a speed control unit, wherein the fixing device includes: a heating conveyance roller provided on a lower surface side of the paper sheet; and a fixing roller provided on an upper surface side of the paper sheet, the fixing roller facing the heating conveyance roller.

Abstract: An image forming apparatus that performs image formation on continuous paper having a toner image formed thereon by making the continuous paper pass through a nip section to fix the toner image to the continuous paper, the nip section being formed by heating at least one of a pair of fixing members and pressure-contacting the fixing members with each other, the apparatus including: a conveyance section which conveys the continuous paper; a blowing section which blows air to the heated fixing member; a pressure-contact separation section which switches the pair of fixing members between a pressure-contacted state and a separated state; and a control section which, after the image formation is finished, stops heating of the fixing member, separates the pair of fixing members with the pressure-contact separation section and blows the air to the heated fixing member with the blowing section.

Abstract: A sheet feeding device having: a first conveyance roller pair that feeds a sheet; a second conveyance roller pair that feeds the sheet, the second conveyance roller pair being provided downstream from the first conveyance roller pair in a feed direction in which the sheet is fed; and a third conveyance roller pair that feeds the sheet, the third conveyance roller pair being provided downstream from the second conveyance roller pair in the feed direction, in which, when an edge of the sheet that is located on the downstream side of the feed direction is skewed with respect to a direction perpendicular to the feed direction, the second conveyance roller pair slides in the perpendicular direction with the sheet slacking between the first conveyance roller pair and the second conveyance roller pair.

Abstract: A sheet feeding device having; a first conveyance roller pair that feeds a sheet; a second conveyance roller pair that feeds the sheet, the second conveyance roller pair being provided downstream from the first conveyance roller pair in a feed direction in which the sheet is fed; and a third conveyance roller pair that feeds the sheet, the third conveyance roller pair being provided downstream from the second conveyance roller pair in the feed direction, in which, when an edge of the sheet that is located on the downstream side of the feed direction is skewed with respect to a direction perpendicular to the feed direction, the second conveyance roller pair slides in the perpendicular direction with the sheet slacking between the first conveyance roller pair and the second conveyance roller pair.

Abstract: In a document reading device, a saddle-stitched document is opened a paper feed tray in a saddle-stitched state. A first reader and a second reader respectively read a front surface and a back surface of the document along a route of transfer. A notifying unit notifies of a manner how the saddle-stitch document is to be opened to be placed on paper feed tray. A reconstructing unit reconstructs images respectively for pages of the saddle-stitch document read by first reader and second reader by rearranging an order of the images.

Abstract: An image reading device to read an image carried on a document, including: an image reading section to read an image carried on a document; a polygonal member, mounted to face the image reading section, and spaced from the image reading section at a predetermined distance, the polygonal member includes a document feeding flat surface which faces the image reading section when the document is fed thereon, a white flat surface, and a black flat surface; a light source to emit light rays onto the image carried on the document, and onto the polygonal member when the document is not fed; and a control section to control an amount of the light rays emitted from the light source; wherein the control section corrects an amount of light rays concerning the white color and the black color, based on the amount of the light rays read by the image reading section.

Abstract: A document reading apparatus includes a first reading section for reading a first side of a document and a second reading section for reading a second side of the document, wherein a first reading position and a second reading position are disposed front and back in a conveyance direction at the document conveyance path, and wherein a pre-reading conveyance section and a post reading conveyance section which sandwich the first reading position and the second reading position in the conveyance direction are provided and the document is conveyed at the first reading position and at the second reading position by a conveyance section consisting of the pre-reading conveyance section and the post reading conveyance section, and wherein a conveyance force of the post reading conveyance section is equal to or less than a conveyance force of the pre-reading conveyance section.

Abstract: An image reading device to read an image carried on a document, including: an image reading section to read an image carried on a document; a polygonal member, mounted to face the image reading section, and spaced from the image reading section at a predetermined distance, the polygonal member includes a document feeding flat surface which faces the image reading section when the document is fed thereon, a white flat surface, and a black flat surface; a light source to emit light rays onto the image carried on the document, and onto the polygonal member when the document is not fed; and a control section to control an amount of the light rays emitted from the light source; wherein the control section corrects an amount of light rays concerning the white color and the black color, based on the amount of the light rays read by the image reading section.

Abstract: A magnetic data processing device for a bankbook having a magnetic stripe. A magnetic head is arranged for reading and writing magnetic data when the bankbook is in a magnetic data processing position. Three rows of drive and pinch rollers are arranged to convey the bankbook. The central row is arranged near the magnetic head, and the pinch rollers of the outside rows a removable for regulating the pinching pressure between the respective drive and pinch rollers. The pinching pressure is reduced when the bankbook is substantially within the magnetic data processing position. Also, the magnetic head is movable between a normally retracted position and an operative position when the bankbook is substantially within the magnetic data processing position. Also, a dummy head is provided.