Abstract: An image forming apparatus has an image forming unit configured to form an image on a sheet using a decolorable toner, a fixing unit configured to fix the image on the sheet by heating, a cooling unit for cooling the fixing unit, and a control section for controlling the cooling unit. The control section turns on the cooling unit if the control section determines that the temperature of the fixing unit is at or above a predetermined temperature.

Abstract: An image forming apparatus has an image forming unit configured to form an image on a sheet using a decolorable toner, a fixing unit configured to fix the image on the sheet by heating, a cooling unit for cooling the fixing unit, and a control section for controlling the cooling unit. The control section turns on the cooling unit if the control section determines that the temperature of the fixing unit is at or above a predetermined temperature.

Abstract: According to one embodiment, an image forming apparatus includes a document sensor to detect a width of a document stacked on an automatic document feeder (ADF), a sheet sensor to detect a width of a sheet stacked on a manual feed tray, memory to store, correspondingly to sheets of various sizes, print patterns based on which an entire area of a document image can be printed according to a document size, a controller which receives detection information from the sensors as input information, selects print patterns from the memory based on the input information, and displays the selected print patterns on a monitor, and a selector by which a user selects, from the print patterns displayed on the monitor, one pattern based on which a document image is printed on a sheet stacked on the ADF or the manual feed tray.

Abstract: According to one embodiment, there is provided a complex-type image forming apparatus capable of achieving both convenience and power saving by registering necessary functions in advance for each user, reading the registered function when an individual user is authenticated, and feeding power to a device corresponding to the registered function.

Abstract: The invention has an object to provide an image forming apparatus in which size information of a document image is used, and various printings can be performed on a sheet in manual feed copy without mistake.

Abstract: A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered, the tray is lowered to the position where the second detector ceases to detect the presence of paper. If a closed state of the door is detected after the tray is lowered, the tray is raised so that the uppermost one of paper sheets on the tray is situated in the paper feed position.

Abstract: A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered, the tray is lowered to the position where the second detector ceases to detect the presence of paper. If a closed state of the door is detected after the tray is lowered, the tray is raised so that the uppermost one of paper sheets on the tray is situated in the paper feed position.

Abstract: A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered, the tray is lowered to the position where the second detector ceases to detect the presence of paper. If a closed state of the door is detected after the tray is lowered, the tray is raised so that the uppermost one of paper sheets on the tray is situated in the paper feed position.

Abstract: A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered, the tray is lowered to the position where the second detector ceases to detect the presence of paper. If a closed state of the door is detected after the tray is lowered, the tray is raised so that the uppermost one of paper sheets on the tray is situated in the paper feed position.

Abstract: A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered, the tray is lowered to the position where the second detector ceases to detect the presence of paper. If a closed state of the door is detected after the tray is lowered, the tray is raised so that the uppermost one of paper sheets on the tray is situated in the paper feed position.

Abstract: A paper feed apparatus according to the present invention has a door adapted to be opened and closed as paper is supplied, successively feeds paper on the top portion of a paper carrying tray, and raises the tray as the paper is fed. In this paper feed apparatus, a first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and a second detector that detects the presence of paper is located below the first detector. If an open state of the door is detected, the paper carrying tray is lowered to a position where the second detector ceases to detect the presence of paper. If the first and second detectors detect the presence of paper after the tray is lowered in this manner, the tray is lowered to the position where the second detector ceases to detect the presence of paper.

Abstract: A delivery device comprises a frame to be fitted to the main body of an image forming apparatus carrying an image recording mechanism mounted therein and provided with a delivery port and a delivery mechanism for delivering sheets of recording paper along a delivery route to the outside through the delivery port, a sheet delivery mechanism arranged in the frame for sending out the sheets of recording paper discharged from the delivery port of the main body in a predetermined direction, a sheet detection sensor arranged along the sheet transfer path in the main body for detecting a sheet of recording paper and a delivery drive directing circuit for directing the sheet delivery mechanism to be driven on the basis of the detection output of the sheet detection sensor. The delivery drive directing circuit is arranged in the main body.

Abstract: It is determined whether the long sides of a document are parallel to the main or sub scanning direction of a scanner to set resolutions of image data along the short and long sides of the document while the image data is being facsimiled. When the long sides of the document is parallel to the main scanning direction, the scanner scans the document in the main scanning direction by the resolution along the long sides and in the sub scanning direction by the resolution along the short sides to read the image data. The image data is rotated 90 degrees, and the rotated image data is facsimiled in the A4-R direction based on the ITU's recommendation. The image data is not degraded when it is rotated but can be transmitted in good quality.