An image reading apparatus which is capable of preventing occurrence of a paper jam and poor stacking during conveyance of originals. The image reading apparatus sets a type of an original, conveys the original based on the set type of the original, and reads an image on the conveyed original. An original detecting sensor detects placement of the original on an original tray. An LCD touch panel displays an object for setting a type of the original in response to the detection by the original detecting sensor.

A conveyance apparatus includes a separation unit configured to separate and convey a sheet, a detection unit configured to detect a floating of the sheet passing through the separation unit, and a control unit configured to stop separate conveyance by the separation unit if the detection unit detects the sheet for not less than a predetermined time and/or a predetermined count.

An information processing apparatus executes, for image data to be printed by a printing device, image processing corresponding to a content of the image data; transmits, to the printing device, image data obtained after executing the image processing; acquires, before executing the image processing, a first transfer rate with respect to the printing device and a requested transfer rate required by a print operation of a print unit of the printing device; attempts image processing for the image data; and acquires, based on the first transfer rate and information of image data obtained after the attempt, a second transfer rate required by transmission, to the printing device, of the image data obtained after the attempt and the print operation of the print unit.

An image reading apparatus is configured to be connected to an external terminal via a network. The image reading apparatus includes a transmitter, a reading section, and a controller. The controller executes an image generation process of generating a single first image file from image data of a document read by the reading section and causes the transmitter to transfer the first image file to the external terminal connected via the network. The controller executes a compression rate determination process of determining a compression rate of a second image file in the image generation process based on a transfer rate of the network when the first image file is transferred to the external terminal and a reading rate of the reading section.

An image reading apparatus which is capable of preventing occurrence of a paper jam and poor stacking during conveyance of originals. The image reading apparatus sets a type of an original, conveys the original based on the set type of the original, and reads an image on the conveyed original. An original detecting sensor detects placement of the original on an original tray. An LCD touch panel displays an object for setting a type of the original in response to the detection by the original detecting sensor.

An image reading apparatus is configured to be connected to an external terminal via a network. The image reading apparatus includes a transmitter, a reading section, and a controller. The controller executes an image generation process of generating a single first image file from image data of a document read by the reading section and causes the transmitter to transfer the first image file to the external terminal connected via the network. The controller executes a compression rate determination process of determining a compression rate of a second image file in the image generation process based on a transfer rate of the network when the first image file is transferred to the external terminal and a reading rate of the reading section.

An image reading apparatus which is capable of preventing occurrence of a paper jam and poor stacking during conveyance of originals. The image reading apparatus sets a type of an original, conveys the original based on the set type of the original, and reads an image on the conveyed original. An original detecting sensor detects placement of the original on an original tray. An LCD touch panel displays an object for setting a type of the original in response to the detection by the original detecting sensor.

Provided is an image forming system for pull printing and does not need a server. A division part generates a blockchain of a document data by generating identification information of the document data for pull print, by dividing into blocks, and by calculating and including a previous hash value of a previous block in order. A storing and transmitting part transmits each of divided blocks. A storing part that stores received block. An outputting and transmitting part transmits the stored block according to the instructions. An identification information acquisition part acquires the identification information of the document data. A block acquisition part acquires each of the block of the document data corresponding to the identification information. A document reproduction part packs each of the block and reproduces to the document data. An image forming part outputs the document data.

An image reading apparatus which is capable of preventing occurrence of a paper jam and poor stacking during conveyance of originals. The image reading apparatus sets a type of an original, conveys the original based on the set type of the original, and reads an image on the conveyed original. An original detecting sensor detects placement of the original on an original tray. An LCD touch panel displays an object for setting a type of the original in response to the detection by the original detecting sensor.

An image reading apparatus includes a reading unit including a reading sensor to read image information from a sheet through a transparent portion. The reading unit is movable with respect to a frame of the apparatus and is urged by an urging member toward a facing member facing the transparent portion. A fixed guide fixed to the frame is disposed in adjacent to the reading unit in the sheet conveyance direction. A plurality of protruded portions provided on either one of the reading unit and the fixed guide, and a plurality of recessed portions provided on the other of the reading unit and the fixed guide and formed so as to engage with the plurality of the protruded portions. The reading unit is movable with the plurality of the protruded portions loosely fit with the plurality of the recessed portions.