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7603073 |
Image forming apparatus
An image forming apparatus includes an image supporting member; a belt; a belt drive unit for rotating the belt; an acceleration and deceleration information storage unit; and a belt speed control...
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7587165 |
Image forming apparatus
An image forming apparatus carries out an image processing with respect to a sheet size and image information based on a print request to obtain a write image on a photoreceptor. On the basis of a...
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7577396 |
Printing apparatus
A printing apparatus prints on a medium at a first transport speed or a second transport speed lower than the first transport speed. The printing apparatus includes: an image forming unit for...
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7570914 |
Image forming apparatus and a paper feeding apparatus for the same
An image forming apparatus feeds a paper picked up by a pickup roller directly to a photoconductive drum and controls a linear velocity of the pickup roller so that it is slower than that of the...
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7548721 |
Sheet transferring device and image forming device
A sheet transferring device includes a feeding roller configured to feed a sheet; a transferring roller configured to transfer the sheet to the feeding roller; a sheet sensor configured to detect...
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7539455 |
Image forming apparatus
An image forming apparatus of the present invention carries out an image processing with respect to image information which is to be printed. The image forming apparatus predicts the occurrence of...
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7525564 |
Image printing apparatus
An image printing apparatus, which can correct variation in inter-sheet distance at the time of conveyance of transfer sheets, comprising an image printing section which performs image printing by...
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7522873 |
Image forming apparatus, method for controlling the same, and program
An image forming apparatus includes an image forming apparatus body and a peripheral unit operable to transport a recording medium. The image forming apparatus includes a communication device for...
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7515841 |
Image forming apparatus for preventing defective fixing of a toner image
An image forming apparatus prevents defective fixing of a toner image from occurring and shortens a printout time for a first sheet by determining a start timing for conveying the recording medium...
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7512377 |
System and method for extending speed capability of sheet registration in a high speed printer
A system and method for registering a sheet transported along a sheet path of a printing system, including receiving a sheet at a first location, transporting the sheet along the sheet path from...
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7509082 |
Image forming apparatus and method of controlling the same
A pattern image for registration correction is formed in a reference color and an arbitrary color to be corrected. The pattern image for registration correction is formed a number or times n 1 or...
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7469123 |
Image forming apparatus
An image forming apparatus includes an image forming portion that superposes images on an intermediate transfer member by rotations of the intermediate transfer member to form a color image on the...
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7454150 |
Image forming apparatus having a resist rotary member
An image forming apparatus includes a belt stretched across rollers and a resist rotary member that feeds out a recording medium on the belt. A correlation between a velocity of the belt and the...
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7444114 |
Image forming apparatus and image forming method
An image forming apparatus that conveys a long belt-like recording sheet on a conveyance path and forms an image on the recording sheet when the recording sheet passes through an image forming...
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7437120 |
Optical sensor for monitoring motion of a blank sheet
An apparatus monitors the motion of sheet, such as in a digital printer. An optical sensor is capable of recording an image in a two-dimensional array of pixels, and has acuity to recognize a...
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7424255 |
Device and method for belt speed control, and image forming apparatus
A scale including equally spaced marks is attached to a belt in a direction of movement of the belt such that a gap is formed between a first end and a second end of the scale. A first sensor and a...
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7421241 |
Printing system with inverter disposed for media velocity buffering and registration
Parallel printing systems and methods incorporate inverter assemblies for not only inverting media during transport through the system but also to register the media or provide a velocity buffer...
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7415239 |
Conveying apparatus and recording apparatus having the same
A conveying apparatus which synchronously conveys a conveyed object includes a first conveyance roller disposed at a downstream side of a conveyance path for conveyance of the conveyed object and a...
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7398047 |
Image tracking control algorithm
An image-to-sheet closed loop registration system tracking the image drum position and/or velocity and coordinating movement of the sheet into the transfer nip based on such information.
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7383016 |
Electrophotographic device capable of performing an imaging operation and a fusing operation at different speeds
An electrophotographic imaging device comprises generally, an image transfer station configured to transfer a toned image to a substrate, a fuser assembly configured to fuse the toned image to the...
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7376364 |
Image forming apparatus
An image forming apparatus includes a sheet feeding cassette, transport rollers, a pick-up roller, a sheet detector, and a control section. The sheet feeding cassette stores sheets for developer...
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7328898 |
Image forming apparatus including timing determination unit, and corresponding sheet feeding method
An image forming apparatus including a drive unit that drives a drive control unit that supplies a first drive current to the drive unit so as to acceleratingly drive an intermediate feeding...
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7322760 |
Antijamming device for printers put in public places
An antijamming device for a printed ticket vending machine having an exit opening for exiting of a printed ticket and a control for controlling feeding of unprinted tickets to a printing mechanism...
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7315701 |
Systems and methods for reducing transfer deletions in an electrostatographic printer
An apparatus is provided for reducing transfer deletions in an electrostatographic machine. The apparatus includes a registration controller for driving a print substrate at a registration velocity...
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7280798 |
Image forming apparatus with conveying device urging a recording material toward a charge eliminating member
The image forming apparatus has an image bearing member for bearing a toner, a transfer device which forms a transfer area in cooperation with the image bearing member for transferring the toner on...
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7274901 |
Method and arrangement for generating positionally accurate print images on a carrier material
The invention relates to a method and an arrangement for generating positionally-accurate print images on a carrier material with the aid of an electrophotographic printer or copier. A positioning...
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7212780 |
Process and device for supplying substrates in a printing unit
Preparing substrates for one-sided or two-sided printing in an electrophotograpically operated digital printing apparatus, in which process substrates are fed out of a supply unit or several supply...
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7197256 |
Image forming apparatus with transfer belt speed control
An image forming apparatus is disclosed that is capable of automatically acquiring thickness variation data of a transfer belt newly installed in the image forming apparatus without manual...
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7130549 |
Method and apparatus for forming image
An image forming apparatus of the present invention uses sensors to detect a marker of a transfer belt, and assigns the transfer belt to detect a medium feeding position and exposure start...
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7123873 |
Printing system with inverter disposed for media velocity buffering and registration
Parallel printing systems and methods incorporate inverter assemblies for not only inverting media during transport through the system but also to register the media or provide a velocity buffer...
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7095977 |
Image formation apparatus and image formation method
An image formation apparatus comprises a transporting roller pair and resist roller pair for transporting sheets supplied from a sheet supplying device positioned relative to the image formation...
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7079797 |
Offset preventing color image forming apparatus
An image forming apparatus forms a toner image on a moving member by transferring and superposing component color toner images formed on an image bearer. An image forming apparatus includes a...
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7079803 |
Electrophotographic printer
A controller outputs a PRE CPF-N signal and a CPF-N signal following the PRE CPF-N signal to an electrophotographic printer. The electrophotographic printer 1 starts a predetermined preparation...
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7068969 |
Method and apparatus for image forming capable of performing fast and stable sheet transfer operations
Image forming methods and apparatuses capable of performing stable and fast sheet transfer operations are provided. In a continuous feed mode, a preceding sheet and a succeeding sheet are...
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7024152 |
Printing system with horizontal highway and single pass duplex
Parallel printing systems include first and second adjacent electronic printers and at least one sheet bypass section extending around the second electronic printer to provide a sheet transporting...
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7006785 |
Metering nip for moving a media sheet within an image forming device
A method and device for moving media sheets along a media path. In one embodiment, the media path comprises a metering nip, at least one transfer nip downstream from the metering nip, and a feed...
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7002711 |
Image reading device and method
An image reading device is operable in a manually placed document reading mode offered by a manually placed document reading section and an ADF document reading mode offered by an ADF document...
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6999713 |
Method for setting rotational speed of register rollers and image forming apparatus using the method
An image forming apparatus in which the rotational speed of register rollers is calculated at first to fourth stations at a transfer belt drive system, and transfer feedback control for varying the...
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6993276 |
Belt apparatus and image forming apparatus having the same
A belt apparatus having an endless belt which is wound around and movably driven by a plurality of support rollers. The speed fluctuations of the endless belt due to the variations in thickness of...
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6937836 |
Image forming apparatus
An image forming apparatus is configured to develop a latent image corresponding to a line-like image of a predetermined pitch on photosensitive bodies provided for respective colors for a color...
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6931230 |
Image forming apparatus and image forming method including low-noise mode at paper sheet reverse section
An image forming apparatus and image forming method including a low-noise mode at paper sheet reverse section to decrease a reverse convey speed of reverse conveyance by a reverse roller pair,...
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6920308 |
Method and apparatus for controlling the velocity of copy substrates during registration
A method of controlling the velocity of a copy substrate in an electrophotographic reproduction machine which includes a substrate registration system for transporting and registering the substrate...
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6836640 |
Sheet conveying apparatus and image forming apparatus
A sheet conveying apparatus has a first conveying unit for conveying a sheet, a second conveying unit for conveying a sheet in merging with the first conveying unit and a sheet merging overlapping...
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6834166 |
Image forming apparatus with image distance interval controller
An image forming section forms images, which are transferred onto a primary medium. A medium cassette holds a stack of print medium. A remaining-medium detector detects the number of pages of...
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6788905 |
Image forming apparatus with sheet discharging device and discharge control unit
An image forming apparatus includes a main body including a sheet transport path having an output part and an image forming part for forming an image on a sheet, and a sheet discharging device...
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6785479 |
Image forming apparatus having a control section for detecting an amount of developer and an amount detection method of developer of image forming apparatus
The image forming apparatus of the present invention having a developer containing section and a developer remaining amount detecting member, and capable of forming an image at any of a plurality...
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6785480 |
Image forming apparatus having a plurality of image forming speeds
An image forming apparatus includes a plurality of image forming devices for forming respective monochromatic images in accordance with input image signals. The apparatus is operable in a first...
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6771928 |
Image forming apparatus with control for varying conveying speed between a registration section and a decelerating position
An image forming apparatus forms a latent image on the basis of a signal outputted at a constant time interval, and develops the latent image on a sheet in an image forming section. A resist roller...
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6757515 |
Method and apparatus for image forming capable of performing a stable sheet transfer operation
A sheet transferring apparatus for use in an image forming apparatus including a sheet transferring mechanism and a controller. The sheet transferring mechanism transfers a recording sheet at a...
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6751437 |
Image forming apparatus
An image forming apparatus is provide which includes an ADU that can sustain productivity per unit of time, without controlling the operation of registration rollers at fixed intervals determined...
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