The invention is a structure for automatically measuring a paper width for a printer, including: a width adjustment mechanism installed in the printer and at least one restraint arm driven by the width adjustment mechanism, where an inductor is also arranged inside the printer, the width adjustment mechanism or the restraint arm comes into contact with the inductor when sliding unidirectionally, and the inductor outputs a corresponding displacement signal. Benefits of the utility model are as follows: The inductor is arranged inside the printer, and in this way, during use, the user can directly manually push the restraint arm or control the width adjustment mechanism to drive the restraint arm, so that the restraint arm properly clamps the paper.

The image forming apparatus includes an ejection portion, a guide portion, a plurality of heating elements, a determination processing portion, and a drive control portion. The ejection portion ejects ink toward a first surface of a strip-shaped medium. The guide portion is provided at a position sandwiching the medium between the guide portion and the ejection portion, and forms a guide surface that guides the medium by coming into contact with a second surface on a rear side of the first surface of the medium. The plurality of heating elements are arranged along a width direction of the medium below the guide surface. The determination processing portion determines the heating elements to be driven based on the width of the medium. The drive control portion drives the heating elements determined by the determination processing portion as heating elements to be driven.

A paper type identification apparatus includes a passage configured to allow a sheet to be manually inserted thereinto, a reading sensor configured to read a surface of the sheet inserted into the passage and a controller configured to output a notification after reading a first surface of the sheet by the reading sensor. The notification is a notification to urge a user to read a second surface opposite to the first surface of the sheet by the reading sensor, and determine a type of the sheet based on a reading result of the first surface by the reading sensor and a reading result of the second surface by the reading sensor.

An image recording apparatus includes a platen, a recorder, and a controller. The platen includes ribs arranged at intervals in a first direction and protruding from a base. The platen supports a recording medium on at least a part of the ribs. The recorder is arranged to face the platen and records an image on the recording medium by causing a colorant to adhere to the recording medium. The controller controls the recorder to record a borderless image, in which no margin is reserved at least on a first end of the recording medium, by causing a portion of the colorant to adhere to the recording medium and another portion of the colorant to exceed in the first direction from the first end of the recording medium by a first length. The first length is a length corresponding to a size of the recording medium in the first direction.

A controller of an ink-jet recording apparatus creates, for each of line heads, a print queue indicating a queue of print jobs each for forming a multicolor image on a sheet and sequentially executes the print jobs in accordance with the print queue. When a width of the sheet is smaller than a sheet width for use in the print job not yet being executed, the controller sets, on a basis of each of the line heads, width information on the sheet in association with the print job not yet being executed in the print queue at the line head and executes, based on the width information set with respect to the print job not yet being executed at each of the line heads, mask processing for reducing a size of a color image of the print job not yet being executed in a widthwise direction of the sheet.

An image forming apparatus includes: an image former that forms an image on a recording medium; a reader that reads the image formed on the recording medium; a colorimeter that performs colorimetry of the image formed on the recording medium; and a hardware processor. Based on image data of multiple color patches obtained from the reader, the hardware processor inspects each of the color patches for an abnormality. Based on the inspection result, the hardware processor determines whether the colorimeter can perform colorimetry of each of the color patches. The hardware processor causes the image former to re-form only a color patch determined not to be subjected to colorimetry by the colorimeter.

A paper type identification apparatus includes a passage configured to allow a sheet to be manually inserted thereinto, a reading sensor configured to read a surface of the sheet inserted into the passage and a controller configured to output a notification after reading a first surface of the sheet by the reading sensor. The notification is a notification to urge a user to read a second surface opposite to the first surface of the sheet by the reading sensor, and determine a type of the sheet based on a reading result of the first surface by the reading sensor and a reading result of the second surface by the reading sensor.