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Belt conveyance apparatus and image forming apparatus using such a belt conveyance apparatus

一种带式传送、成像设备的技术，应用在应用电荷图形的电记录工艺、应用电荷图形的电记录工艺的设备、输送机等方向，能够解决从动辊无法随动等问题

Inactive Publication Date: 2006-01-11
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this belt drive apparatus, since the supporting shaft of the driven roller engaged with the conveyor belt is restrained or fixed so as not to move in the axial direction (generally, the horizontal direction), there is a case where That is, the driven roller cannot follow the deflection

Method used

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  • Belt conveyance apparatus and image forming apparatus using such a belt conveyance apparatus
  • Belt conveyance apparatus and image forming apparatus using such a belt conveyance apparatus
  • Belt conveyance apparatus and image forming apparatus using such a belt conveyance apparatus

Examples

Experimental program
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Effect test

no. 1 example

[0048] figure 1 Shown is an overall structure of a digital copying machine as an image forming apparatus to which a belt conveying apparatus according to the first embodiment of the present invention is applied. It is to be noted that the present invention is not limited to digital copiers, but can also be applied to various devices as long as they have a belt conveying unit, such as facsimile devices, printers (including inkjet printers) and the like.

[0049] On the top surface of the main body 1 a of the digital copier 1 are provided a contact glass 2 and a slit glass having a smaller area than the contact glass 2 . In addition, an automatic document feeder 3 (which may be abbreviated as "ADF" hereinafter) is provided on the main body 1a of the digital copying machine 1 (in this example, placed on the contact glass 2 and slotted glass). The ADF 3 is movable relative to the contact glass 2 and the slotted glass to open and close a space above the contact glass 2 and the sl...

no. 2 example

[0072] The digital copying machine according to the second embodiment of the present invention has the same structure as the digital copying machine according to the first embodiment of the present invention except for a part of the intermediate transfer member 100, and thus, figure 1 , 2 , 3 and 5A are used to describe the second embodiment, and the same constituent parts are given the same reference numerals.

[0073] Figure 6 A partial plan view of an intermediate transfer member in a digital copying machine according to a second embodiment of the present invention is shown.

[0074] exist Figure 6 Among them, a groove 110 is formed on the peripheral surface of the intermediate transfer belt driving roller 101 for receiving the flange 107 on the intermediate transfer belt 102 . Here, grooves 110 are formed on both sides of the intermediate transfer belt driving roller 110 in the width direction. It should be noted that in Figure 5A The operation shown in is also app...

no. 3 example

[0080] The digital copying machine according to the third embodiment of the present invention has the same structure as that of the digital copying machine according to the first embodiment of the present invention except for a part of the intermediate transfer member 100, and thus, figure 1 , 2 , 3 and 5A are used to describe the third embodiment, and the same constituent parts are given the same reference numerals.

[0081] Figure 7 A partial plan view of an intermediate transfer member in a digital copying machine according to a third embodiment of the present invention is shown. Figure 8A and 8B A portion of an intermediate transfer belt drive roller with a rotating member is shown. Figure 8C and 8D A portion of an intermediate transfer belt drive roller without a rotating member is shown.

[0082] In the intermediate transfer member 100 , rotating members 121 each having a conical corner are fixed to both ends of the intermediate transfer belt drive roller 101 . ...

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PUM

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Abstract

In an intermediate transfer part (100), a bead 107 is formed on an inner side of an intermediate transfer belt (102), which is rotated by an intermediate transfer belt drive roller (101). Driven roller bearings (104a, 104b) support an intermediate transfer belt driven roller (103). The intermediate transfer belt driven roller (103) is movable in a thrust direction. Ends of the intermediate transfer belt driven roller (101) and the intermediate transfer belt driven roller (103) interfere with a bead (107) so as to restrict a deflection of the intermediate transfer belt in the thrust direction. The intermediate transfer belt driven roller (103) is movable in the thrust direction against a deflection of the intermediate transfer belt (102).

Description

technical field [0001] The present invention relates generally to an image forming apparatus, and more particularly to an image forming apparatus utilizing a belt conveying apparatus with a driving roller, a driven roller, and a The driven rollers are engaged with the endless belt. Background technique [0002] A conventional belt conveying apparatus has an endless guide member, a part of which extends from the end surface of a conveying roller positioned on a conveying belt so that the endless guiding member is connected to a drive roller and a driven roller ( It may also be called a follower roller or an idle roller) and the spacer on the end side engages (for example, refer to Patent Document 1). According to the aforementioned structure, if the conveyor belt moves in a zigzag direction, a pressure is exerted on the conveyor belt and a stretching phenomenon occurs, no stress is generated in the endless guide member, and the flatness of the conveyor belt is maintained. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H5/02
CPCB65H2404/2222B65G39/16G03G15/1615B65H5/026G03G15/161B65H2404/253B65G15/64B65H2404/255G03G2215/00151B65H5/02
Inventor 牧恒雄三角富义塚村清伊东阳一青木秀夫
Owner RICOH KK
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