In a data generating apparatus, a processor acquires offset information indicating a deviation in a colorant usage used by a specific print execution unit from a standard amount of usage. The standard amount of usage is a standard quantity concerning colorant used by print execution units. The processor controls the specific print execution unit to print a first patch image and generates first control data using first read data based on the first patch image. The processor generates corrected first control data using the offset information. The processor controls the specific print execution unit to print a second patch image using the corrected first control data and generates second control data using second read data based on the second patch image. The first and second control data is for common use in the printing processes performed on the print execution units.

A sensor unit includes a sensor device, a holder that holds the sensor device and includes a surface maintained at a reference potential, and a case that houses the holder, in which the case includes a mounting surface in contact with a mounting object, and the mounting surface is provided with a communication portion that causes an inside and an outside of the case to communicate with each other, and the holder includes a protrusion that protrudes from the communication portion and comes in contact with the mounting object.

An image forming apparatus includes a CPU. According to user operations, the CPU causes an image reading unit to read, at once, the front surfaces of documents placed on the respective area divisions of a document platen, and obtains individual front surface images. The CPU causes the image reading unit to read the back surfaces of the documents at once, and obtains individual back surface images. The CPU generates image files, each including a front surface image and a back surface image, for the respective area divisions. The CPU determines whether or not a read error is present in each of the obtained images. When an image file includes an image having a read error, the CPU stores, in an HDD, the image file with a file name indicating presence of a read error.

There is provided an image reading apparatus including: a reading unit that reads a document; a document setting unit that sets the document to be fed toward the reading unit; and a binding member detector that detects a binding member binding the document and is provided in an outside of the document setting unit. The binding member detector is provided on a side surface of a housing constituting an outside of the image reading apparatus. The binding member detector includes a first portion and a second portion disposed to face the first portion and is configured to detect the binding member by passing the document through between the first portion and the second portion.

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 forming apparatus includes: an image former that performs image forming processing to a plurality of sheets included in each of a plurality of sheet groups; and a hardware processor that detects occurrence of a jam, wherein the image former completes the image forming processing to each of the plurality of sheets included in a sheet group not including a jammed sheet that has generated the jam.

A control device includes an execution control unit that performs control to execute specific processing based on information posted by a user in a talk room in which each of plural participating users is able to post and view information, in which the execution control unit provides notification regarding execution of the specific processing to only some of the plural users according to predetermined conditions.

A malfunction determining apparatus for determining a malfunction of a target apparatus includes a receiver that receives, from a target apparatus, a plurality of items of physical data having frequency bands that are different from each other and circuitry that analyzes the received physical data to identify, for each of the operating modes, at least one of the physical data items having a specific feature from among the plurality of items of physical data that are received from the target apparatus, stores in a memory, for each of the operating modes, information indicating at least one sensor of the multiple sensors that has output the at least one of the physical data item that is identified, and determines abnormality of the target apparatus operating in a specific operating mode, using only the physical data output from the at least one sensor stored in the memory for the specific operating mode.

An inspection apparatus is provided, which is operable to inspect a cut sheet that is supplied to a post-processing apparatus that post-processes sheets in units of books and on which an image has been formed by an image forming apparatus. The inspection apparatus inspects an image formed on a sheet for each sheet; manages results of sheet inspection by the inspection unit for respective books including a plurality of sheets; and notifies, the post-processing apparatus of a result of inspecting a book including the sheet that is based on the managed sheet inspection results.

A preview screen includes a message indicating that double feeding of documents (i.e., sheets) has been detected, and image data corresponding to one or more read documents if the double feeding of documents is detected, and further provides a countermeasure method to the double feeding of documents in the preview screen.