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 motor control device includes a phase determiner, a detector, and a controller configured to control the driving current so that a deviation between a value of a torque current component of the driving current detected by the detector and a target value of the torque current component is reduced, and perform field weakening for weakening an intensity of magnetic flux through the winding. In a state where a value corresponding to a rotational velocity is greater than a first predetermined value, the controller sets a degree of the field weakening to a first degree in a case where the value of the torque current component is greater than a second predetermined value, and sets the degree of the field weakening to a second degree smaller than the first degree in a case where the value of the torque current component is smaller than the second predetermined value.

A multifunction peripheral capable of preventing discontinuation of a simultaneous double-sided reading process, caused by congestion of an image bus. An image transfer clock is controlled for transferring image data of a document sheet from a reading unit for reading both sides of the document sheet, to an image processing unit for performing image processing on data acquired via an image bus. When transfer of image data of one side of the document sheet is singly executed, a frequency of the image transfer clock is set to a predetermined frequency, and when transfer of image data of the other side of the document sheet, which is executed in succession to the transfer of image data of the one side, is to be executed in parallel with the image processing, the frequency is switched from the predetermined frequency to a lower frequency than the same.

An image reading apparatus includes an image reading portion; a main assembly; a rotatable member; a damper unit mounted to either one of the main assembly and the rotatable member and including a cylinder portion and a piston portion inserted into the cylinder portion, wherein the damper unit is expanded in an expansion direction and contracted in a contraction direction by sliding the cylinder portion and the piston portion relative to each other; and a contact portion provided on the other one of said main assembly and said rotatable member and configured to contact said damper unit, wherein the damper unit suppresses a speed of said rotatable member when said rotatable member lowers from an upper position toward a lower position in a state in which the contact portion contacts and presses the damper unit in the contraction direction.

A method of controlling an image forming apparatus having an image reading unit capable of conveying and reading a plurality of documents of different sizes includes determining whether an automatic magnification function is set in a case where an instruction to read a plurality of documents of different sizes is given, and performing control such that, in a case where the determining determines that the automatic magnification function is not set, a first document reading mode in which the plurality of documents is conveyed at a constant conveyance speed and is read is set to the image reading unit, and, in a case where the determining determines that the automatic magnification function is set, a second document reading mode in which the plurality of documents is conveyed at a different conveyance speed for each document and is read is set to the image reading unit.

A recording apparatus includes an apparatus body including a recording section configured to record onto a medium and a discharge section configured to discharge the medium recorded by the recording section, and a post-processing unit attached to the apparatus body, the post-processing unit being configured to receive the medium discharged from the discharge section and perform post-processing. The post-processing unit is configured to be moved between a receiving position at which the medium discharged from the discharge section is to be received and a discharge position to which the post-processing unit is moved from the receiving position and at which the medium discharged from the discharge section is discharged to the outside of the post-processing unit without being received into the post-processing unit.

A sheet conveyance apparatus includes a control unit configured to determine that the sheet is of a first size in a case where first and second detection sensors detect that a sheet is present and determines that the sheet is of a second size smaller than the first size in a case where the first detection sensor detects that the sheet is present and the second detection sensor detects no sheet. The control unit controls the sheet conveyance unit in a first mode in a case where the control unit determines that the sheet is of the first size and controls the sheet conveyance unit in a second mode in which a sheet conveyance speed is slower than that of the first mode in a case where the control unit determines that the sheet is of the second size.

An image reading apparatus includes a reading unit, a transport unit that transport a document, a feeding unit that transports the document to the transport unit, a controller that stops the feeding operation of the feeding unit after the leading end of the preceding document transported from the feeding unit reaches the transport unit and restarts the feeding operation after the rear end of the preceding document passes a predetermined position. The controller, restarts the feeding operation a first time after the rear end of the succeeding document following the preceding document passes the predetermined position when a size of the preceding document indicates a first size, and restarts the feeding operation a second time after the rear end of the succeeding document passes the predetermined position where the second time is longer than the first time when the size indicates a second size larger than the first size.

A multifunction peripheral that is capable of performing, in parallel, a plurality of processes including a scanning process on an original using a scanner section. A RAM holds image data generated by the scanner section. A scanner transfer section transfers data from the scanner section to the RAM. A transfer rate of data from the scanner section to the RAM is set by switching at least between a first transfer rate and a second transfer rate lower than the first transfer rate. In a case where a plurality of processes including the scanning process are executed in parallel, a data transfer rate is switched by switching the data transfer rate based on a user's operation performed on a console section.

An information processing apparatus includes an acquisition unit, notification control unit, input unit, and extension unit. The acquisition unit acquires a measurement result obtained by measuring a printing medium characteristic and acquires a characteristic reference range of each of printing media types set in advance to identify a type of a measured printing medium. Extracting, as a candidate printing medium and based on the acquired measurement result and the acquired characteristic reference range, a type of printing medium using the characteristic reference range including the measurement result and notifying information indicating the type of the candidate printing medium are performed. The input unit inputs information, wherein a type of printing medium on which recording is to be performed by the recording unit has a first reference range which is the characteristic reference range of the type and corresponds to the input information. The extension unit extends the first reference range.