Image forming apparatus
An image and image carrier technology, applied in the electrical recording process using charge graphics, equipment using electrical recording technology using charge graphics, electrical recording, etc., can solve the problem of space limitations for installing detection units, sacrificing color positioning accuracy, and color adjustment. The concentration of the agent color block is easily affected by environmental changes, etc., so as to maintain the image quality and avoid the increase of production cost
Active Publication Date: 2010-05-26
FUJIFILM BUSINESS INNOVATION CORP
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Problems solved by technology
However, in the case of a smaller image forming apparatus, the space for installing the detection unit is limited, which leads to a problem that the detection units cannot be installed in series, and in the case of arranging three detection units, it is necessary to increase the production cost
Therefore, the prior art image forming apparatus is currently facing a situation where a small number of detection units are provided, thereby sacrificing the accuracy of color positioning
[0008] Also, in the case of the image forming apparatus according to JP-A-2004-125827, an environmental sensor for detecting environmental conditions such as temperature and humidity of an image forming portion of the apparatus is not installed, or, even if an environmental sensor is installed, due to The position where this environmental sensor is installed is far away from the position of the detection unit or the transfer position, so a difference in temperature and humidity occurs between the detection position and the image forming position, and image formation is easily affected by environmental changes, and toner color patches (color patch) is also susceptible to environmental changes
Thus, image quality such as density cannot be maintained
Method used
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Embodiment 1
[0037] figure 2is a configuration diagram showing a "4-cycle electrophotographic" type color multifunction machine as an image forming apparatus according to Exemplary Embodiment 1 of the present invention. It should be noted that this color multifunctional machine doubles as a copier and a printer or facsimile.
[0038] Such as figure 2 As shown, this color multifunctional machine includes a scanner 2 as an image reader on an upper portion of a main body 1 of the multifunctional machine, and is connected to a personal computer or the like (not shown) via a network (not shown). In addition, the color multifunctional machine has a post-processing operation device 3 installed on the right-hand side of the main body 1 of the multifunctional machine for performing, for example, punching, stapling, Wait for postprocessing operations.
[0039] Then, the color multifunctional machine is designed to have the functions of: a copying machine for copying a text image captured by the...
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The present invention provides an image forming apparatus which includes: an intermediate transfer element that a toner image on an image carrier is primarily transferred onto, and a multifunctional detecting unit that performs two or more functions of: detecting a first toner image on the intermediate transfer element to control a position of an image on the intermediate transfer element; detecting a second toner image on the intermediate transfer element to control a density of an image on the intermediate transfer element; and detecting an environment condition within the image forming apparatus, the multifunctional detecting unit being disposed in the vicinity of a position that the toner image is primarily transferred, and being detachable in an axial direction of the image carrier.
Description
technical field [0001] The present invention relates to image forming apparatuses such as copiers and printers employing electrophotography, and more particularly to image forming apparatuses capable of realizing color registration for reading or capturing color registration formed on an intermediate transfer member. The size reduction and cost reduction of the reader for the ) adjustment pattern and the density adjustment pattern can be achieved, and furthermore, the reading accuracy can be increased, so that the reliability in maintaining the image quality can be improved. Background technique [0002] In the background art, for example, so-called "4-cycle electrophotography" type image forming apparatuses have been proposed as image forming apparatuses such as copiers and printers of the type employing electrophotography, and some of them are now on the market as products. In such an image forming apparatus, a single photosensitive drum is provided to form a full-color im...
Claims
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IPC IPC(8): G03G15/01G03G15/16G03G15/00
CPCG03G15/0121G03G15/0131G03G2215/00063G03G15/5058G03G2215/00059G03G15/00G03G15/01
Inventor 石塚哲男宇土修鲛岛淳一郎小林正人
Owner FUJIFILM BUSINESS INNOVATION CORP