JP2015145910A5 - - Google Patents

Claims (20)

A plurality of image forming units each including an image carrier that is rotationally driven, each configured to be removable; and
Light irradiating means for irradiating each image carrier of the plurality of image forming units with light to form one or more electrostatic latent images along the rotationally driven direction;
Detecting means for detecting the one or more electrostatic latent images;
Determination means for determining a mounting state of the plurality of image forming units based on a detection result by the detection means;
For each of the image carriers, during the period in which at least one of the one or more electrostatic latent images is formed on the image carrier, the one or more electrostatic latent images are provided on an image carrier different from the image carrier. And an image forming apparatus comprising: a control unit configured to control so as not to form an image. A plurality of image forming units each including an image carrier that is rotationally driven, each configured to be removable; and
Detecting means for detecting light irradiation means for irradiating each image carrier of the plurality of image forming units with light to form one or more electrostatic latent images along the rotationally driven direction;
Determination means for determining a mounting state of the plurality of image forming units based on a detection result by the detection means;
For each of the image carriers, the at least one of the one or more electrostatic latent images formed on the image carrier is detected on the image carrier, while the detection unit detects the at least one of the one or more electrostatic latent images. An image forming apparatus comprising: a control unit that controls the detection unit so that one or more electrostatic latent images are not detected by the detection unit.   3. The apparatus according to claim 1, wherein the determination unit determines the mounting state of the plurality of image forming units based on the number of times the value detected by the detection unit exceeds a threshold value or falls below the threshold value. Image forming apparatus.   The image forming apparatus according to claim 1, wherein the determination unit determines a mounting state of the plurality of image forming units by performing frequency analysis on a value detected by the detection unit. A plurality of image forming units each including an image carrier that is rotationally driven, each configured to be removable; and
Light irradiating means for irradiating each image carrier of the plurality of image forming units with light to form a plurality of electrostatic latent images along the rotationally driven direction;
Detecting means for detecting the plurality of electrostatic latent images;
Determination means for determining a mounting state of the plurality of image forming units based on a detection result by the detection means;
For each of the image carriers, the plurality of electrostatic latent images are applied to an image carrier different from the image carrier during a period in which the image carrier is formed with at least two continuous electrostatic latent images. And an image forming apparatus comprising: a control unit that controls the image forming apparatus not to form the image forming apparatus. A plurality of image forming units each including an image carrier that is rotationally driven, each configured to be removable; and
Light irradiating means for irradiating each image carrier of the plurality of image forming units with light to form a plurality of electrostatic latent images along the rotationally driven direction;
Detecting means for detecting the plurality of electrostatic latent images;
Determination means for determining a mounting state of the plurality of image forming units based on a detection result by the detection means;
For each of the image carriers, the at least two continuous electrostatic latent images formed on the image carrier are detected on the image carrier, while the detection means detects the continuous electrostatic latent images. An image forming apparatus comprising: a control unit configured to control the plurality of electrostatic latent images so as not to be detected by the detection unit.   The image forming apparatus according to claim 5, wherein the determination unit determines a mounting state of the plurality of image forming units by performing frequency analysis on a value detected by the detection unit. The light irradiation means forms a plurality of electrostatic latent images on each image carrier at a predetermined cycle,
The determination unit determines a mounting state of the plurality of image forming units based on a frequency value corresponding to the predetermined period as a result of frequency analysis of a value detected by the detection unit. 8. The image forming apparatus according to 7. A plurality of image forming units each including an image carrier that is rotationally driven, each configured to be removable; and
Light irradiating means for irradiating each image carrier of the plurality of image forming units with light to form a plurality of electrostatic latent images along the rotationally driven direction;
Detecting means for detecting the plurality of electrostatic latent images;
Determination means for determining a mounting state of the plurality of image forming units based on a detection result by the detection means;
Control means for controlling the period of the plurality of electrostatic latent images formed on the image carriers to be different from each other between the image carriers;
With
The image forming apparatus characterized in that the determination unit determines the mounting state of the plurality of image forming units by performing frequency analysis on the detection result.   The image forming apparatus according to claim 9, wherein each period in which the light irradiating unit forms the plurality of electrostatic latent images on at least two image carriers of the image carriers has an overlapping period. .   11. The image forming apparatus according to claim 9, wherein each period in which the light irradiation unit forms the plurality of electrostatic latent images on each image carrier has an overlapping period. Further comprising power supply means for supplying the bias to each output member that outputs a bias for image formation toward each image carrier,
The light irradiating means has a period in which each period in which each of the plurality of electrostatic latent images formed on at least two image carriers of each image carrier passes through a corresponding position of the corresponding output member overlaps. The image forming apparatus according to claim 9, wherein the plurality of electrostatic latent images are formed on each of the image carriers. Further comprising power supply means for supplying the bias to each output member that outputs a bias for image formation toward each image carrier,
The light irradiating means includes the image carriers such that each of the plurality of electrostatic latent images formed on the image carriers has a period that overlaps each corresponding period of the corresponding output member. The image forming apparatus according to claim 9, wherein the plurality of electrostatic latent images are formed on a surface.   The determination unit includes the plurality of image forming units based on a frequency value corresponding to a period of the plurality of electrostatic latent images formed on each image carrier as a result of frequency analysis of a value detected by the detection unit. The image forming apparatus according to claim 9, wherein a mounting state of the image forming apparatus is determined.   In the control unit, each of the frequencies corresponding to the periods of the plurality of electrostatic latent images formed on the image carriers corresponds to the period of the plurality of electrostatic latent images formed on another image carrier. The image forming apparatus according to claim 9, wherein the image forming apparatus is controlled so as not to be a harmonic of a frequency.   An image forming unit including a rotationally driven image carrier;
  A light irradiation means for irradiating each image carrier of the image forming unit with light to form an electrostatic latent image;
  Detecting means for detecting the electrostatic latent image;
  An image forming apparatus comprising: a determination unit that determines a mounting state of the image forming unit based on a detection result of the detection unit. The detecting device, the image forming apparatus according to any one of claims 1 to 16, characterized in that to detect the output value via the charging means for charging the respective image carriers. It said detecting means, any one of claims 1 to 16, characterized in that to detect the output value through a transfer means for transferring said developer image formed on the image carriers to a transfer member The image forming apparatus described in the item. Said detecting means, any of claims 1 to 16, characterized by detecting the output value through a developing means for developing the electrostatic latent image formed on the image carriers as a developer image 2. The image forming apparatus according to item 1. The image forming apparatus according to any one of claims 1 to 19, characterized in that said detecting means further comprises a correction means for performing based color shift correction in the timing of detecting the electrostatic latent image.