An image reading device includes a housing including a support that supports a document, an opening and closing (O/C) member supported to rotate around a rotary shaft between an open position at which a top surface of the support is exposed and a closed position at which the top surface is covered by the O/C member, a reading member included in the O/C member to read the document, a processing unit included in the housing to process information read by the reading member, a connecting member electrically connecting the reading member and the processing unit, and a protective member whose first end is rotatably supported by the O/C member and that accommodates the connecting member in its internal space while being supported in a state of hanging from the O/C member and in a state where its second end is supported while not being constrained with respect to the housing.

An image forming apparatus is provided. the apparatus comprises a sheet feeding unit to supply a plurality of types of sheets; an image forming unit to form an image on a sheet; a detection unit to detect an image formed on the sheet; and a controller that causes correction information for each sheet type to be saved in a storage, and under set conditions, causes a specified type of sheet to be supplied by the sheet feeding unit, causes a chart for gradation correction to be formed by the image forming unit, and causes the correction information to be generated based on image information for which the formed chart for gradation correction was detected by the detection unit, and saves the correction information in the storage.

A distance between a reference position and a reference image of a sheet is accurately measured without adding a special device even when an attitude of the sheet is not stable. An aspect of the present invention obtains image data by reading a sheet surface formed with the reference image such as a trim mark by a reading portion. A height calculation portion calculates edge-blur amounts of the reference position and the reference image on the sheet surface from the image data. Furthermore, a height calculation portion detects heights from a focus position to the sheet surface for the reference position and the reference image, from the edge-blur amount and a reflected light amount of a white solid portion. Moreover, a distance detection portion calculates a distance between the reference position and the reference image on the sheet surface, on the basis of a detection result.

A moving mechanism of a reading unit includes a driving pulley, a plurality of driven pulleys which are rotatably driven, an endless belt which is engaged and rotates between the driving pulley and the plurality of driven pulleys, and attracts the reading unit, and a biasing unit which applies tension to the endless belt, in the endless belt, an attraction section which is a belt section that extends along the auxiliary scanning direction, and which attracts the reading unit, is formed between a first driven pulley and a second driven pulley, the driving pulley is provided at a position separated from the attraction section in the main scanning direction, and a biasing force of the biasing unit is applied to the belt section excluding the attraction section in the endless belt.

An image reading apparatus includes a stacking unit, a conveyance unit to convey stacked sheets, a reading unit, a white reference plate provided in a second position, and a processor. The reading unit is movable and, at a first position, reads a conveyed sheet image to obtain image data and, at the second position, reads the white reference plate. The processor generates, based on a plate reading result, a shading correction value and corrects the image data using the shading correction value. Based on whether the number of times in which reading the white reference plate has been performed is less than a predetermined number of times, the reading unit changes a time interval in a reading period that is from a first timing to a second timing. The processor generates, each time the white reference plate is read, the shading correction value based on the plate reading results.

A sheet conveying device includes a sheet placement table, a sheet discharge table, a conveyance mechanism, raising/lowering mechanism, and a raising/lowering control portion. The sheet discharge table is located below the sheet placement table. The conveyance mechanism conveys a sheet placed on the sheet placement table onto the sheet discharge table via an execution position at which image processing is executed by an image processing portion. The raising/lowering mechanism raises and lowers the sheet placement table. The raising/lowering control portion controls the raising/lowering mechanism to lower the sheet placement table when a human detection sensor configured to detect a human in a detection region has detected a human in the detection region.

A non-transitory computer readable medium storing computer readable instructions configured to, when executed by a processor of a computer, cause the processor to: perform a print instruction receiving process comprising receiving a print instruction from an operating system; in response to receiving the print instruction, perform a preparation instruction process comprising transmitting preparation instruction information to a printer, the preparation instruction information being information for instructing execution of at least a part of at least one pre-printing operation, the at least one pre-printing operation being executed by the printer to record an image having particular quality in the printing operation, the particular execution condition being the execution condition changing operation content of the at least one pre-printing operation; in response to executing the preparation instruction process, perform a generating process comprising generating print data; and perform a print instruction process comprising transmitting print instruction information to the printer.

A printing system includes a printer and an information processing device that includes a processor and a memory storing processor-executable instructions, the instructions being configured to, when executed by the processor, cause the processor to accept a print instruction, in response to accepting the print instruction, determine whether to instruct the printer to start a pre-printing operation based on preparation instruction information, in response to determining to instruct the printer to start the pre-printing operation, transmit the preparation instruction information to the printer, in response to determining to instruct the printer to start the pre-printing operation and transmitting the preparation instruction information to the printer, generate print data based on specified contents data, and transmit print instruction information to the printer.

An image reading apparatus includes: a housing including a processing unit configured to process image information; an opening and closing member openably and closably provided on the housing, the opening and closing member including a reading unit configured to read an image from an image holding medium and configured to obtain image information from the image; a connection member that electrically connects the reading unit and the processing unit; and a protective member including a first protective member rotatably supported by the opening and closing member and a second protective member rotatably supported by the housing and rotatably connected to the first protective member, wherein rotation axial directions of the first protective member and the second protective member are the same direction as a rotation axial direction of the opening and closing member, and the connection member is accommodated in the protective member and protected by the protective member.

An automatic document feeding device includes a conveyance unit, an image reading unit, a color reference member, a moving assembly, and a drive source. The drive source includes a rotation output shaft to drive the conveyance unit and the moving assembly. The drive source changes the rotation output shaft from a forward rotation direction to a reverse rotation direction to reversely rotate the rotation output shaft to a set reverse rotation angle set in advance, according to a condition of conveyance of the document. In a rotation transmission route from the rotation output shaft to the moving assembly, the movement regulator is disposed in a first reverse rotation drive region from when a rotation direction of the rotation output shaft is changed to the reverse rotation direction to when a rotation angle of the rotation output shaft after the change in the reverse rotation direction reaches the set reverse rotation angle.