Image forming apparatus
An imaging device and imaging technology, which are applied in the equipment, instruments, optics and other directions of the electric recording process applying the charge pattern, can solve the problems of the large size of the equipment and the difficulty of removing the jammed paper.
Inactive Publication Date: 2012-10-24
KONICA MINOLTA BUSINESS TECH INC
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Problems solved by technology
[0008] However, if the conveyance path between the detection sensor 3000 and the transfer part 5000 is made long along a straight line, the apparatus needs to be of a large size.
In addition, if the conveyance path between the detection sensor 3000 and the transfer portion 5000 is diverted to become longer to prevent oversizing of the apparatus, it is difficult to remove jammed paper when a jam occurs at the diverter portion
Method used
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[0025] figure 1 is a central sectional view showing the internal configuration of the imaging device 1 .
[0026] The image forming apparatus 1 includes an apparatus main body 2 and an optional paper feeding device 3 .
[0027] The apparatus body 2 is a tandem type apparatus body having an intermediate transfer belt 50 .
[0028] Documents placed on the document feeding table of the automatic document feeder 10 are conveyed to the image reading section 30 by means of each conveying roller.
[0029] The apparatus main body 2 has a plurality of main body paper feed trays 20 at its lower portion. The image forming section 40 and the intermediate transfer belt 50 are provided above the main body paper feed tray 20, and the image reading section 30 is provided at the upper portion of the apparatus main body.
[0030] The main body paper feed tray 20 is capable of facing the front side of the device (in figure 1 Middle is the structure that pulls toward this side on the page)....
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An image forming apparatus includes: a common conveyance path through which a sheet fed from a sheet feed tray is conveyed from a registration roller to a transfer section; a direct conveyance path through which the sheet is directly fed from the sheet feed tray to the common conveyance path; a delay conveyance path in which the sheet after being branched from the direct conveyance path is joinedto the common conveyance path, and is caused to delay in being fed from the sheet feed tray to the common sheet conveyance path; a conveyance section which conveys the sheet fed from the sheet feed tray to the transfer section; and a controller which controls the conveyance section to convey once the sheet fed from the sheet feed tray from the direct conveyance path to the delay conveyance path, and thereafter to convey to the common conveyance path.
Description
technical field [0001] The present invention relates to an image forming apparatus in which sheets stacked on a sheet feed tray are fed and images are formed on the sheets. Background technique [0002] Image forming devices such as copiers, printers, and facsimile machines are introduced into many offices, and users demand higher speed and higher image quality from the image forming devices. In recent years, electrophotographic image forming apparatuses have also been introduced into the printing industry, and users have demanded higher speed and higher image quality. [0003] As a process for achieving higher image quality, in one technique, for example, to detect physical characteristics of each sheet fed from a paper feed tray including, for example, width and whiteness, or positions such as deviations, to correct image data, An image is thereby formed on the paper based on the corrected image data. [0004] In the technique described in Unexamined Japanese Patent Laid...
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IPC IPC(8): G03G15/00G03G15/01
Inventor 铃木智雄
Owner KONICA MINOLTA BUSINESS TECH INC