An image forming apparatus is configured to form an image on a recording medium by scanning of the image forming apparatus by a user. The image forming apparatus includes an image forming device and processing circuitry. The image forming device includes a plurality of image forming arrays. Each of the image forming arrays includes an image forming portion configured to form the image. The processing circuitry is configured to set an image forming array to be used to form the image, according to a use mode of the image forming apparatus.

The present disclosure relates to an image reading device having a highly-accurate structure that enables an easy increase in depth of field, that is, improvement in the depth of the field, without need for a change in basic characteristics of lenses. An overlap preventer (5) disposed between a lens array (1) and a sensor element array (3) to prevent overlap of images formed by lenses (2) is included. A slit section (5) that is the overlap preventer (5) includes multiple slit plates (7) arranged in a main scanning direction and extending in a sub-scanning direction to partition off a space, and the slit plates (7) are fixed to fixing plates (13).

The present disclosure relates to an image reading device having a highly-accurate structure that enables an easy increase in depth of field, that is, improvement in the depth of the field, without need for a change in basic characteristics of lenses. An overlap preventer (5) disposed between a lens array (1) and a sensor element array (3) to prevent overlap of images formed by lenses (2) is included. A slit section (5) that is the overlap preventer (5) includes multiple slit plates (7) arranged in a main scanning direction and extending in a sub-scanning direction to partition off a space, and the slit plates (7) are fixed to fixing plates (13).

A data processing method for repeatedly recording a first basic pattern image and a second basic pattern image on a base material includes the following a) and b). In the a), the first basic pattern image (D1) and the second basic pattern image (D2) are stored. In the b), a pixel value to be recorded is calculated for each recording layout coordinate set indicating a position on the base material. Further, in the b), a pixel value of a first basic pattern coordinate set indicative of a position on the first basic pattern image (D1) and a pixel value of a second basic pattern coordinate set indicative of a position on the second basic pattern image (D2) are each assigned to a corresponding one of the recording layout coordinate sets so as to cause the first basic pattern image (D1) and the second basic pattern image (D2) to be arranged side by side in an X-axis direction and to cause the first basic pattern image (D1) and the second basic pattern image (D2) to be each arranged continuously and repeatedly in a Y-axis direction orthogonal to the X-axis direction.

A data processing method for repeatedly recording a first basic pattern image and a second basic pattern image on a base material includes the following a) and b). In the a), the first basic pattern image (D1) and the second basic pattern image (D2) are stored. In the b), a pixel value to be recorded is calculated for each recording layout coordinate set indicating a position on the base material. Further, in the b), a pixel value of a first basic pattern coordinate set indicative of a position on the first basic pattern image (D1) and a pixel value of a second basic pattern coordinate set indicative of a position on the second basic pattern image (D2) are each assigned to a corresponding one of the recording layout coordinate sets so as to cause the first basic pattern image (D1) and the second basic pattern image (D2) to be arranged side by side in an X-axis direction and to cause the first basic pattern image (D1) and the second basic pattern image (D2) to be each arranged continuously and repeatedly in a Y-axis direction orthogonal to the X-axis direction.

An image reading device includes (i) light guides extending in a main scanning direction and configured to emit light from a light source toward a reading target moving relatively in a sub-scanning direction, the light from the light source being projected into end surfaces of the light guides in the main scanning direction, (ii) an optical filter arranged between the light source and the end surfaces of the light guides and configured to block or attenuate light having a specific wavelength from the light from the light source, (iii) a lens body to focus reflected light reflected by the reading target onto a light receiver to convert the reflected light into an electrical signal, and (iv) a lens holder. The lens holder includes a first positioner for positioning the light guides and a second positioner for positioning the optical filter.

The disclosure is directed to systems and methods for image capturing technologies and, more particularly, to a slice scan imaging system and respective processes to achieve high quality images. The method can be implemented in a computing device, which includes: capturing multiple lines of an image in a single slice; capturing multiple slices; stitching together the multiple slices by aligning common features of the images of a previous slice with a successive slice; and blending together the stitched together multiple slices.

In a line sensor including color filters that are periodically disposed in a light-receiving-element row, a problem called a mixture of colors occurs. A mixture of colors occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element.

In a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202 is displaced in a direction of the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.

In a line sensor including color filters that are periodically disposed in a light-receiving-element row, a problem called a mixture of colors occurs. A mixture of colors occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element.

In a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202 is displaced in a direction of the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.

An image reading device includes light guides (5, 6) that emit light to an object to be read, a lens body (8) that condenses reflected light, a light receiver (13) that receives the reflected light, a sensor board (24) on which is mounted the light receiver (13), a lens holder (11), and a housing (9) that houses or holds these components. The lens holder (11) includes a holder bottom (11g), light guide positioners (11a, 11b) and lens body holders (11e, 11f). In the lens holder (11), the lens body (8) is attached between the lens body holders (11e, 11f), the sensor board (24) is attached to the holder bottom (11g) such that the light receiver (13) aligns with an optical axis of the lens body (8), and the light guides (5, 6) are attached to the light guide positioners (11a, 11b). A surface of each light guide positioner (11a, 11b) that faces the corresponding light guide (5, 6) to be attached has at least a portion having a same shape a s a shape of a surface of the light guide.