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Catching device and image forming device

A toner image and pipeline technology, which is applied to the electrical recording process applying charge patterns, equipment and instruments of the electrical recording process applying charge patterns, etc. Adequately attract paper air and other issues

Active Publication Date: 2017-06-13
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned prior art, although the air around the paper conveyance path on the downstream side of the paper conveyance direction is sucked by the comparison fixing device, the sealing property of the paper conveyance path is low, so that the inside of the paper conveyance path cannot be sufficiently sucked. air
Therefore, the UFP on the downstream side of the paper conveying direction from the fixing device cannot be sufficiently collected.

Method used

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  • Catching device and image forming device
  • Catching device and image forming device
  • Catching device and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0105] refer to Image 6 Modification 1 of the collection device 50 of the above-mentioned embodiment will be described. Image 6 It is a schematic configuration diagram of a fixing device 30A and a collecting device 50A according to Modification 1. The configuration other than the points described below is the same as that of the trapping device 50 of the above-mentioned embodiment.

[0106] The collection device 50A of Modification 1 is different from the collection device 50 of the above-mentioned embodiment in the following points. That is, in the trapping device 50A of Modification 1, the casing 33a of the fixing device 30A is airtightly connected to the narrow flow path portion 513a of the duct 51a, and the paper delivery port 332a of the fixing device 30A is connected to the paper delivery port 512a of the duct 51a. connected. Thereby, the housing 33a and the narrow channel part 513a abut without gap.

[0107] So far, according to Modification 1, the casing 33a of t...

Deformed example 2

[0109] refer to Figure 7 Modification 2 of the trapping device 50 of the above-mentioned embodiment will be described. Figure 7 It is a schematic configuration diagram of a fixing device 30B and a collecting device 50B according to Modification 2. The configuration other than the points described below is the same as that of the trapping device 50 of the above-mentioned embodiment.

[0110] The trapping device 50B of Modification 2 differs from the trapping device 50 of the above-mentioned embodiment in the following points. That is, in the collecting device 50B of Modification 2, the upstream end of the duct 51b in the sheet conveyance direction extends to a position inside the fixing device 30B of the housing 33b to form a guide 518b. The guide portion 518 b is arranged from the casing 33 b to the vicinity of the nip portion between the fixing roller 31 and the pressure roller 32 . As a result, the paper P passing through the nip portion between the fixing roller 31 and...

Deformed example 3

[0115] refer to Figure 8 and Figure 9 Modification 3 of the trapping device 50 of the above-mentioned embodiment will be described. Figure 8 It is a schematic configuration diagram of a fixing device 30C and a collecting device 50C according to Modification 3. Figure 9 It is a schematic configuration diagram showing the narrow channel portion 513c and the like of the collecting device 50C viewed from a direction perpendicular to the paper conveyance direction and the paper width direction. The configuration other than the points described below is the same as that of the trapping device 50 of the above-mentioned embodiment.

[0116] The trapping device 50C of Modification 3 differs from the trapping device 50 of the above-mentioned embodiment in the following points. That is, in the collecting device 50C of Modification 3, the casing 33c of the fixing device 30C is airtightly connected to the narrow flow path portion 513c of the duct 51c, and the paper delivery port 332...

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PUM

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Abstract

The invention provides a catching device and image forming device and to the paper conveyance direction downstream side than a fixing device, UFP is caught effectively. The catching device (50) comprises a duct (51) which covers a whole circumference enclosure excluding the paper conveyance direction upper stream side of a paper conveying path on the paper conveyance direction downstream side, and the downstream side from a fixing device (30); and the catching device further has an exhaust air fan (52) which exhausts air in the duct (51) from an exhaust port (511) provided by the duct (51), and a filter (53) which catches an ultrafine particle contained in air exhausted by the exhaust air fan (52).

Description

technical field [0001] The present invention relates to a capturing device and an image forming device. Background technique [0002] Conventionally, among image forming apparatuses, there is provided an image forming apparatus having a structure capable of trapping and removing ultrafine particles (UFP: Ultrafine Particles) generated in the apparatus. The main generation source of UFP is the heated elastic member in the fixing device. Therefore, by collecting UFP around the fixing device, it is possible to significantly reduce the discharge amount of UFP to the outside of the image forming device. [0003] Here, there are cases where UFP slightly flows out from the fixing device toward the downstream side in the paper conveying direction as the paper is conveyed, or UFP continues to be slightly generated from the heated paper being conveyed immediately after passing through the fixing device. [0004] Therefore, for example, a technology is provided in which the air around...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20G03G21/20
CPCG03G15/2017G03G21/206
Inventor 诹访间大前田裕之山野美帆下村翠
Owner KONICA MINOLTA INC