JP2003162115A5

JP2003162115A5 -

Info

Publication number: JP2003162115A5
Application number: JP2001361533A
Authority: JP
Filing date: 2001-11-27
Publication date: 2005-06-30

Claims

A developer including a rotary developer is formed by exposing the photosensitive member on the basis of image data to be printed on a recording material or test patch data for density control to form a latent image on the photosensitive member. In the image forming apparatus configured to visualize the latent image using the image, transfer the visualized toner image to an intermediate transfer member, and further transfer the toner image from the intermediate transfer member to the recording material ,
An image forming means for forming an image for printing based on the image data on the intermediate transfer member;
Test patch imaging in which the image forming means forms an image on the intermediate transfer body, and a test patch is formed with the developed color of the image at the rear end of each image to be printed Means,
Density control for detecting the toner density of the test patch imaged by the test patch imaging means with a sensor and performing density control so that the density of the developed image becomes a predetermined density based on the detection result Means and
The image forming means develops a developing color to be developed next after the test patch image forming means executes a process of forming a test patch while an image is being formed on the intermediate transfer member. When the rotation control operation is started, after the intermediate transfer member is rotated once, development of the rotary developing device after the rotation control is performed so that the image is superimposed on the image on the already formed intermediate transfer member. An image forming apparatus, wherein color image formation is performed on the intermediate transfer member.

A developer including a rotary developer is formed by exposing the photosensitive member on the basis of image data to be printed on a recording material or test patch data for density control to form a latent image on the photosensitive member. In the image forming apparatus configured to visualize the latent image using the image, transfer the visualized toner image to an intermediate transfer member, and further transfer the toner image from the intermediate transfer member to the recording material ,
Image forming means for forming an image for printing based on the image data on the intermediate transfer member, wherein two images of the recording material are simultaneously formed around the intermediate transfer member and printed. Image forming means including two-sheet pasting control for executing sheet pasting control;
Test patch image forming means for forming a test patch with the developed color of the image at the rear end of each print color to be formed while the image forming means forms an image on the intermediate transfer member When,
Density control for detecting the toner density of the test patch imaged by the test patch imaging means with a sensor and performing density control so that the density of the developed image becomes a predetermined density based on the detection result Means and
The image forming unit rotates after the test / patch image forming unit executes the test / patch image forming at the rear end of the image formed last in the two surfaces during execution of the two-sheet pasting control. When the operation of rotating the developing device to the development color to be developed next is started, the intermediate transfer already formed in the order of the image formed on the last surface and the image on the remaining surface after that is performed. An image forming apparatus characterized in that image formation of a development color of a rotary developing device after rotation control is performed on the intermediate transfer member so as to be superimposed on an image on a body.

A developer including a rotary developer is formed by exposing the photosensitive member on the basis of image data to be printed on a recording material or test patch data for density control to form a latent image on the photosensitive member. An image forming method in which the latent image is visualized and transferred to an intermediate transfer member, and the toner image is transferred from the intermediate transfer member to the recording material. ,
An image forming step of forming an image for printing based on the image data on the intermediate transfer member;
Test patch image formation in which an image is formed on the intermediate transfer member by the image forming step, and a test patch is formed at the rear end of each image to be formed with the developed color of the image Steps,
Density control for detecting the toner density of the test patch formed in the test pad image forming step with a sensor and performing density control so that the density of the developed image becomes a predetermined density based on the detection result With steps and
In the image forming step, during the formation of an image on the intermediate transfer member, a process for forming a test patch in the test patch image forming step is performed, and then a developing color to be developed next is performed on the rotary developer. When the rotation control operation is started, after the intermediate transfer member is rotated once, development of the rotary developing device after the rotation control is performed so that the image is superimposed on the image on the already formed intermediate transfer member. An image forming method comprising: performing color image formation on the intermediate transfer member.

A developer including a rotary developer is formed by exposing the photosensitive member on the basis of image data to be printed on a recording material or test patch data for density control to form a latent image on the photosensitive member. An image forming method in which the latent image is visualized and transferred to an intermediate transfer member, and the toner image is transferred from the intermediate transfer member to the recording material. ,
An image forming step of forming an image for printing based on the image data on the intermediate transfer member, wherein two images of the recording material are simultaneously formed around the intermediate transfer member and printed; An image forming step including two-sheet pasting control for executing the sheet pasting control;
Test patch image formation in which an image is formed on the intermediate transfer member by the image forming step, and a test patch is formed at the rear end of each image to be formed with the developed color of the image Steps,
Density control for detecting the toner density of the test patch formed in the test patch imaging step with a sensor and performing density control so that the density of the developed image becomes a predetermined density based on the detection result With steps and
In the image forming step, while the two-sheet pasting control is being performed, a rotating developer is used after the test patch image forming step executes the test patch image forming at the rear end of the last imaged surface of the two surfaces. On the intermediate transfer member that has already been formed, in the order of the last image formed and then the image of the remaining surface. An image forming method comprising: forming an image of a development color of a rotary developing device after rotation control on the intermediate transfer member so as to be superimposed on the image of

A rotary developing unit having at least two color developing units and an intermediate transfer member are arranged around a photosensitive member instructed to be rotatable, and images of a plurality of colors sequentially formed on the photosensitive member are transferred to the intermediate transfer member. In an image processing apparatus that sequentially transfers a plurality of color images transferred onto the intermediate transfer body to a transfer material at once,
It is possible to carry two or more sets of images on the intermediate transfer member,
When image formation of a test patch for density control is executed following the formation of two sets of images in the order of 2n-1 and 2nth sheets (n is an integer) on the intermediate transfer member, When forming an image in color, an image is formed on the photosensitive member in the order of 2n, 2n-1 sheets, and sequentially transferred to the intermediate transfer member.

If image formation of a test patch for density control is not performed following image formation in the order of 2n-1 and 2nth sheets (n is an integer) on the intermediate transfer body, an image of the next color 6. The image forming apparatus according to claim 5, wherein when forming the image, the image is formed on the photosensitive member in order of 2n-1 and 2n sheets, and sequentially transferred to the intermediate transfer member.

In the case where an image having a size capable of supporting only one set of images is formed on the intermediate transfer member, an n-th image (n is an integer) is formed on the intermediate transfer member for density control. When performing test patch image formation, the intermediate transfer member is rotated once without being transferred, and then the nth image formed in the next color is transferred to the intermediate transfer member. The image forming apparatus according to claim 6.