Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: With respect to principal papers distributed in the market and used in an image forming apparatus, a boundary between grammage ranges is set at the center of a section where neighboring grammage values of paper has a large difference, and an image is formed under optimum image forming conditions in accordance with the determined grammage range.

Abstract: An image forming apparatus according to an embodiment of the present invention includes an apparatus main body, an image creating unit that is provided in the apparatus main body and creates an image to be printed on recording paper, a paper feeding mechanism on which plural pieces of the recording paper are stacked as a paper bundle, a paper-type distinguishing device that distinguishes a type of the recording paper from the paper bundle stacked on the paper feeding mechanism, and a printing unit that prints, according to the type of the recording paper distinguished by the paper-type distinguishing device, the image created by the image creating unit on the recording paper.

Abstract: A sheet post-process apparatus includes a waiting tray and a processing tray. The waiting tray is provided in the middle of a conveying path and makes standby sheets in the case where a post-process is required. The processing tray has a function which causes the sheets made standby on the waiting sheet to be dropped by self-weight. With this function, the processing tray receives the sheets moved to be dropped and the sheets conveyed from the conveying path without intervening the waiting tray, before carrying out the post-process. Sheet bundles formed on the processing tray are stacked on a storage tray by a sheet conveying mechanism after they have been post-processed.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: A sheet post-process apparatus includes a waiting tray and a processing tray. The waiting tray is provided in the middle of a conveying path and makes standby sheets in the case where a post-process is required. The processing tray has a function which causes the sheets made standby on the waiting sheet to be dropped by self-weight. With this function, the processing tray receives the sheets moved to be dropped and the sheets conveyed from the conveying path without intervening the waiting tray, before carrying out the post-process. Sheet bundles formed on the processing tray are stacked on a storage tray by a sheet conveying mechanism after they have been post-processed.

Abstract: A sheet post-process apparatus includes a waiting tray and a processing tray. The waiting tray is provided in the middle of a conveying path and makes standby sheets in the case where a post-process is required. The processing tray has a function which causes the sheets made standby on the waiting sheet to be dropped by self-weight. With this function, the processing tray receives the sheets moved to be dropped and the sheets conveyed from the conveying path without intervening the waiting tray, before carrying out the post-process. Sheet bundles formed on the processing tray are stacked on a storage tray by a sheet conveying mechanism after they have been post-processed.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed is paper not detected by the sensor, the image forming process is not started. After paper type detection by the sensor, the paper is directly discharged. When the paper fed is paper of the same type as paper detected by the sensor, the image forming process is started without performing paper type detection.

Abstract: An image forming apparatus of an embodiment of the invention includes a pair of conveyance rollers to nip and convey a sheet on which a formed image is recorded, a turning amount detection section which is disposed downstream of the pair of conveyance rollers and includes a bearing section coming in contact with the sheet, a thickness detection section to detect a thickness of the sheet based on a turning amount detected by the turning amount detection section, a pair of register rollers which is disposed downstream of the bearing section and aligns the sheet, and an image recording and fixing section to record and fix the image on the sheet passing through the pair of register rollers. A distance from a center point of a contact portion of the pair of conveyance rollers to a point where the bearing section contacts with the sheet is zero or more and about 3 mm or less.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: An image forming apparatus according to an embodiment of the present invention includes an apparatus main body, an operation panel that is provided in the apparatus main body and used for instructing printing of a formed image, plural paper feeding cassettes that store paper for color printing or paper for monochrome printing on which the image is printed, and a cassette-paper-correspondence recognizing unit that is provided in the apparatus main body and recognizes whether the paper stored in the plural paper feeding cassettes is the paper for color printing or the paper for monochrome printing.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: An image forming apparatus having a paper type detection section according to an embodiment of the present invention includes a paper type and paper thickness storage section to store ranges of paper thicknesses correspondingly to a plurality of paper types, a paper thickness detection section to detect a thickness of a sheet on which a formed image is printed, and a paper thickness comparison and determination section to feed, when a specific paper type is selected, a sheet of the paper type to the paper thickness detection section and to determine whether the measured paper thickness is within the range of paper thickness stored in the paper type and paper thickness storage section and corresponding to the paper type, and when the paper thickness comparison and determination section determines that the measured paper thickness is outside the range of the selected paper type, a warning to that effect is issued.

Abstract: An image forming apparatus according to an embodiment of the present invention includes an apparatus main body, an image creating unit that is provided in the apparatus main body and creates an image to be printed on recording paper, a paper feeding mechanism on which plural pieces of the recording paper are stacked as a paper bundle, a paper-type distinguishing device that distinguishes a type of the recording paper from the paper bundle stacked on the paper feeding mechanism, and a printing unit that prints, according to the type of the recording paper distinguished by the paper-type distinguishing device, the image created by the image creating unit on the recording paper.

Abstract: An image forming apparatus according to one embodiment of the present invention includes: an image generating unit configured to generate an image to be printed onto recording paper; a paper type specifying unit for a user to specify that a type of the recording paper is directly identified or that a type of the recording paper is automatically identified; a paper type identifier device having a recessed portion on an outer face of the image forming apparatus, the identifier device being operable to identify a type of the recording paper from a paper bundle made of a plurality of recording paper, inserted into the recessed portion by the user when automatically identifying a type of the recording paper is specified by the paper type specifying unit; and a printing unit configured to print the image generated by the image generating unit according to a type of the recording paper identified by the paper type identifier device.

Abstract: A waiting tray is provided in a sheet-conveying path and holds sheets if the sheets need to be post-processed. A processing tray receives sheets conveyed from the waiting tray. It may receive sheets conveyed through the sheet-conveying path and coming not via the waiting tray, before the sheets are post-processed. A conveying mechanism is provided, which causes the sheets to fall, due to gravity, from the waiting tray onto a processing tray. A sheet-aligning mechanism aligns the sheets on the processing tray, at their transverse edges and longitudinal edges. On the processing tray, the sheets are post-processed, forming a bundle. The conveying mechanism conveys the bundle of sheets to a storage tray. An opening is provided between the waiting tray and the processing tray and located at downstream of the waiting tray and processing tray.

Abstract: A waiting tray is provided in a sheet-conveying path and holds sheets if the sheets need to be post-processed. A processing tray receives sheets conveyed from the waiting tray. It may receive sheets conveyed through the sheet-conveying path and coming not via the waiting tray, before the sheets are post-processed. A conveying mechanism is provided, which causes the sheets to fall, due to gravity, from the waiting tray onto a processing tray. A sheet-aligning mechanism aligns the sheets on the processing tray, at their transverse edges and longitudinal edges. On the processing tray, the sheets are post-processed, forming a bundle. The conveying mechanism conveys the bundle of sheets to a storage tray. The waiting trays have sidewalls, each having at least one part that is inclined outwards.

Abstract: An image forming apparatus according to an embodiment of the present invention includes a paper-type detecting unit that detects a paper type of a sheet to be printed, a fixing unit that sets fixing temperature on the basis of the paper type detected by the paper-type detecting unit and fixes a toner image on the sheet, and a fixing-temperature changing unit that changes the fixing temperature of the fixing unit to high temperature when a printed image fixed by the fixing unit is an image that fades or is matte compared with fixing temperature for an image that is rough or is glossy.

Abstract: An image forming apparatus having a paper-type detecting unit includes a paper-type detecting unit that detects a paper type of a sheet to be printed, a fixing unit that sets fixing temperature on the basis of the paper type detected by the paper-type detecting unit and fixes a toner image on the sheet, a paper-type-detection-failure determining unit that determines that the paper-type detecting unit is in failure, a paper-type-during-failure setting unit that sets in advance a paper type having a high frequency of use as a paper type during a failure according to a region, and a printing-during-failure selecting unit which is selectably provided, when the paper-type-detection-failure determining unit determines that the paper-type detecting unit is in failure, whether a printing condition for the paper type set by the paper-type-during-failure setting unit is set or it is determined that the paper type is a paper type of a sheet printed immediately before the failure and a printing condition is continued.

Abstract: A waiting tray is provided in a sheet-conveying path and holds sheets if the sheets need to be post-processed. A processing tray receives sheets conveyed from the waiting tray. It may receive sheets conveyed through the sheet-conveying path and coming not via the waiting tray, before the sheets are post-processed. A conveying mechanism is provided, which causes the sheets to fall, due to gravity, from the waiting tray onto a processing tray. A sheet-aligning mechanism aligns the sheets on the processing tray, at their transverse edges and longitudinal edges. On the processing tray, the sheets are post-processed, forming a bundle. The conveying mechanism conveys the bundle of sheets to a storage tray. The waiting trays have sidewalls, each having at least one part that is inclined outwards.