CN103792806B

CN103792806B - Image processing system

Info

Publication number: CN103792806B
Application number: CN201310454889.6A
Authority: CN
Inventors: 杉山響子; 植山淳贵
Original assignee: Brother Industries Ltd
Current assignee: Brother Industries Ltd
Priority date: 2012-10-31
Filing date: 2013-09-29
Publication date: 2016-08-24
Anticipated expiration: 2033-09-29
Also published as: JP5991142B2; JP2014089393A; CN103792806A

Abstract

It is an object of the invention to provide the image processing system of a kind of gear plate ground connection that can make to have by easy structure electric conductivity.This image processing system has: support the body side frame (110) of image forming part；The gear mechanism (140) linked with image forming part；Having the gear plate (300) of electric conductivity, this gear plate is configured at the position clipping gear mechanism (140) between framework (110), supports gear mechanism (140)；Paper feed roller；Mounting table, this mounting table is placed with recording sheet, it is possible to make recording sheet move to paper feed roller；Lifting parts (210), this lifts parts (210) and has electric conductivity, makes mounting table move to paper feed roller；And tension spring (220), this tension spring engages with lifting parts (210), makes mounting table to paper feed roller closely to lifting parts (210) force.Lifting parts (210) electrical grounding, tension spring (220) has electric conductivity and is somebody's turn to do, and engages with the holding section (320) being arranged on gear plate (300).

Description

Image processing system

Technical field

The present invention relates to a kind of image processing system with gear plate.

Background technology

In the past, there is the support framework of image forming part, gear and clamp between framework and support gear The image processing system of gear plate is widely known (with reference to patent documentation 1).In such image processing system, one As, in order to reduce the error of the axle base of gear, there is the situation using metal gear plate.

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2008-15077 publication

Invent problem to be solved

But, metal gear plate has electric conductivity, needs electrically to remove the electrostatic lodging in gear plate surface Ground connection.But, in the case of the image processing system with resinous framework, it is impossible to make gear plate by framework , so needing additionally to add earthy parts, there is the baroque worry of image processing system in ground connection.

Summary of the invention

Therefore, it is an object of the invention to provide a kind of gear plate ground connection that can make to have by easy structure electric conductivity Image processing system.

Solve the means of problem

For achieving the above object, the image processing system of the present invention has: support the framework of image forming part；With image The gear that forming portion links；Having the gear plate of electric conductivity, this gear plate is configured at and clips gear between framework Position, supports gear；Paper feed roller；Mounting table, this mounting table is placed with recording sheet, it is possible to make recording sheet to confession Paper bowl moves；Lifting parts, this lifts parts and has electric conductivity, makes mounting table move to paper feed roller；And force section Part, this force application part engages with lifting parts, makes mounting table to paper feed roller closely to lifting parts force.

Lifting parts electrical grounding, force application part has electric conductivity, engages with the holding section being arranged at gear plate.

According to such structure, the force application part with electric conductivity is sticked in the holding section being arranged on gear plate, so tooth Wheel plate is turned on by the parts that lift of force application part with electrical grounding.Therefore, it is possible to make gear plate by easy structure Ground connection.

In described structure, being configured to, the profile of gear plate has recess, and this recess is formed as to lift unit The opposition side depression of part side, holding section is arranged at the side in the counter-lateral quadrents clipping recess.

According to such structure, the interference that gear plate can either be prevented with lift parts, again can be by easy structure To lifting parts force.

Described image processing system can be configured to, and has: conveying roller, and this conveying roller has axle, and this axle has conduction Property, it is different from the member supporting of gear plate；And conductive member, this conductive member has electric conductivity, makes axle and tooth Wheel plate turns on.

According to such structure, the axle of conveying roller is turned on gear plate by conductive member, it is possible to remove accumulate in The electric charge of axle.

The described image processing system with conveying roller and conductive member is configured to, and has and can pivotally support institute Stating the bearing of axle, this bearing has electric conductivity, and gear plate has the 2nd holding section, and the 2nd holding section is relative to lifting Parts are positioned at the opposition side of holding section, and conductive member links bearing and the 2nd holding section.

In having the described structure of conveying roller and conductive member, being configured to, gear plate has notch part, from institute Stating axially seeing of axle, conveying roller is positioned at the position overlapping with notch part.

According to such structure, from axially seeing that conveying roller is positioned at the position overlapping with notch part, so easily from axial group The gear of dress conveying roller.

In described structure, being configured to, framework has: resinous 1st framework, and the 1st framework clips figure As forming portion is configured at side, fixed gear plate；And resinous 2nd framework, the 2nd framework clips image shape One-tenth portion is configured at opposite side.

In the structure shown here, image processing system is configured to, and has: conductive plate, this conductive plate by the 1st framework with 2nd framework links, and this conductive plate turns on lifting parts；And there is the cap assembly of electric conductivity, this cap assembly Being fixed on the 2nd framework, cover power supply board, turn on the grounding parts of electrical grounding, conductive plate is by with cap assembly even Connect and ground connection.

According to such structure, conductive plate is by being connected and ground connection with power supply board, it is possible to by easy structure Make to lift parts (gear plate) ground connection.

In described structure, being configured to, lift parts and have spindle unit, this spindle unit has electric conductivity, this axle Parts turn on conductive plate.

According to such structure, it is possible to made to lift parts by spindle unit simply and turn on conductive plate.

Described image processing system is configured to, and has elastomeric element further, and this elastomeric element has electric conductivity, For connecting conductive plate with lift parts, conducting conductive plate and lift parts.

According to such structure, it is possible to make to lift parts simply lead with conductive plate by having the elastomeric element of electric conductivity Logical.

Described image processing system is configured to, and has: be located at the driving source of the 1st framework；Driving by the source of driving Power is transferred to the band transmission mechanism of gear；Having the scanning board of electric conductivity, this scanning board is by the 1st framework and the 2nd framework Link, prop up the scanning device staying at image forming part；And support the driving source supporting part with electric conductivity in driving source Part, scanning device and the source of driving support member are connected and ground connection with cap assembly via scanning board.

Scanning board ground connection can be passed through according to such structure, scanning device and the source of driving support member.

Invention effect

According to the present invention, the force application part with electric conductivity is sticked in the holding section being located at gear plate, it is possible to make tooth Wheel plate is turned on by the parts that lift of force application part with electrical grounding.Therefore, it is possible to make gear plate by easy structure Ground connection.

Accompanying drawing explanation

Fig. 1 is the sectional view of the laser printer that embodiments of the present invention relate to.

Fig. 2 is the figure of the gear plate being configured at laser printer in terms of left side.

Fig. 3 is the A-A sectional view of Fig. 2.

Fig. 4 is to represent conductive plate and the axonometric chart (a) lifting parts and representing is configured with the putting of part of elastomeric element Big figure (b).

Fig. 5 is the figure of the 2nd framework in terms of right side.

Symbol description

1 laser printer

4 image forming parts

5 scanning elements

31A mounting table

32A paper feed roller

33 conveying rollers

34 conveying roll shafts

100 frameworks

110 body side frames

111 the 1st frameworks

112 the 2nd frameworks

120 motor

130 band transfer devices

140 gear mechanisms

150 conductive plates

160 power supply boards

170 cap assemblies

190 scanning boards

200 motor support parts

210 lift parts

211 the 1st rotary shafts

220 tension springs

230 elastomeric elements

240 bearings

250 conductive member

270 ground terminals

300 gear plates

310 recesses

311A, 311B sidepiece

320 holding sections

330 the 2nd holding sections

340 notch parts

P paper using

Detailed description of the invention

It follows that to an embodiment of the invention, be described in detail with reference to suitable accompanying drawing.It addition, under In the explanation in face, first, the overall structure of the laser printer related to an embodiment of the invention illustrates After, inventive feature part is described in detail.

In description below, the direction on the basis of user when direction is to use laser printer illustrates.That is, In Fig. 1, using towards the left side of paper as " front side ", using the right side towards paper as " rear side ", will be towards paper The inboard in face is as " left side ", using towards the side, front of paper as " right side ".It addition, upper and lower by towards paper Direction is as " above-below direction ".

(schematic configuration of laser printer)

As it is shown in figure 1, laser printer 1 has: apparatus main body 2, for supply as an example of recording sheet The sheet feed section 3 of paper using P and for forming the image forming part 4 of image in paper using P.

Apparatus main body 2 has: framework 100, top cover 22, protecgulum 23.Framework 100 has at an upper portion thereof for loading and unloading The opening 21A of handle box 6 described later, and there is insert port 21B for inserting paper using P in its front portion.

Specifically, rotary shaft 22A of top cover 22 is located at the rear, upside of apparatus main body 2, and top cover 22 can be with this turn Moving axis 22A rotates upward as center.It addition, top cover 22 is to cover from the rear end of apparatus main body 2 to front The lid of side end, by rotating upward, the upside of device for opening main body 2.

Rotary shaft 23A of protecgulum 23 is located at the lower front of apparatus main body 2, and protecgulum 23 can be with this rotary shaft 23A Forwards rotate as center.It addition, in FIG, the protecgulum 23 represented with double dot dash line is in shutoff device master The state of the front side of body 2, protecgulum 23 indicated by the solid line is in the state of the front side of device for opening main body 2.About The structure of framework 100 illustrates later.

Sheet feed section 3 is positioned at the bottom of apparatus main body 2, has: for loading the paper supply tray 31 of paper using P, supply The paper-feeding mechanism 32 of paper using P on paper supply tray 31 and paper using P being supplied to is carried to image forming part 4 Conveying roller 33.

Paper supply tray 31 includes: be configured at mounting table 31A and the described protecgulum 23 of the bottom of device body 2.Specifically For, protecgulum 23 can swing centered by bottom, when forward side fell, constitute paper supply torr A part for dish 31.

Mounting table 31A is the plate-shaped member of mounting paper using P, is configured to make to be placed in paper using P of its upper surface Move to paper feed roller 32A described later.It addition, make mounting table 31A move by the parts 210 that lift described later, after Paper using P can be moved to can be to the position of paper feed roller 32A paper supply by end.

Paper-feeding mechanism 32 mainly has: paper feed roller 32A, separate roller 32B, separating pad 32C.Paper feed roller 32A ratio Separate roller 32B, near the upstream side of the conveying direction of paper using P, is arranged on the rear end of mounting table 31A.Separate roller 32B and separating pad 32C is oppositely disposed.

As it is shown on figure 3, conveying roller 33 has the conveying roll shaft of an example of the axle as metal system (having electric conductivity) 34.This conveying roll shaft 34 is arranged at the pair of bearings 240 of the 1st framework the 111 and the 2nd framework 112 described later Support.That is, conveying roller 33 is by the member supporting outside gear plate 300 described later.

The bearing 240 of a pair, in order to pivotally support conveying roll shaft 34, is the parts formed by electroconductive resin, Supported by the shaft supporting part 112D of the 2nd the framework 112 and shaft supporting part 111D of the 1st framework 111.

The bearing 240 in left side is provided with the hook portion 241 with electric conductivity engaged with conductive member 250 described later.

Return Fig. 1, in sheet feed section 3, protecgulum forward side was fallen and after forming paper supply tray 31, paper using P is carried It is placed on paper supply tray 31.Then, paper feed roller 32A contacts with placing paper using P on paper supply tray 31 and revolves Turning, thus send placing paper using P on paper supply tray 31 to separate roller 32B, paper using P being sent is separating Separated one by one between roller 32B with separating pad 32C.Then, paper using P is supplied to by conveying roller 33 Image forming part 4.

Image forming part 4 has: as the scanning element 5 of an example, handle box 6 and the fixing device 7 of scanner.

Scanning element 5 is arranged at the front side in device body 2, has: not shown lasing fluorescence portion, polygon prism, Lens and reflecting mirror etc..In this scanning element 5, laser beam is swept at a high speed on the surface of photosensitive drums 61 described later Irradiate with retouching.

Handle box 6 is positioned near the rear side central part of device body 2, is arranged at the top of paper-feeding mechanism 32.Process Box 6 can be loaded and unloaded towards front, upside relative to framework 100 by opening 21A, has: photosensitive drums 61, make sense Toner image on light drum 61 be transferred to the transfer roll 62 of paper using P, not shown known charged device, developer roll, Thickness limits plate and toner reception room etc..

In this place reason box 6 in, the surface of the photosensitive drums 61 of rotation by charged device the most charged after, by from The high-velocity scanning of the laser beam of scanning element 5 is exposed.Thus, the current potential being exposed part declines, in photosensitive drums 61 Surface formed electrostatic latent image based on view data.

Then, the toner in toner reception room is supplied to the electrostatic latent image of photosensitive drums 61 by developer roll, photosensitive Toner image is formed on the surface of drum 61.Afterwards, paper using P is carried between photosensitive drums 61 and transfer roll 62, The toner image on the surface being carried on photosensitive drums 61 is transferred in paper using P.

Fixing device 7 is positioned at the rear, upside of device body 2, is configured at the top of handle box 6, mainly has: adds Hot-rolling 71 and backer roll 72.

Heating roller 71 is the parts of heating paper using P, within it, is provided with the not shown thermals source such as halogen lamp.

Backer roll 72 is the parts of clamping conveying paper using P between heating roller 71, is arranged at the oblique of heating roller 71 Rear upside.

Then, in the fixing device 7 of this structure, in paper using P by between heating roller 71 and backer roll 72 During, the toner being transferred in paper using P is carried out heat fixing.It addition, carried out hot fixing with fixing device 7 Paper using P is transported to be disposed in the distributing roller 8 of the downstream side of fixing device 7, is expelled to discharge torr from this distributing roller 8 On dish 9.

(detailed construction of framework)

It follows that the detailed construction of the framework 100 of constituent apparatus body 2 is illustrated.

As shown in Figure 2 and Figure 3, framework 100 has the body side frame 110 of the example as framework.

Body side frame 110 is resinous, supports image forming part 4.This body side frame 110 includes: clips image and is formed Portion 4 is configured at the 1st framework 111 in left side (side) and is configured at the 2nd framework 112 on right side (opposite side).

1st framework 111 mainly has: as driving the motor 120 of an example in source, band transmission mechanism 130, tooth Wheel mechanism 140 and gear plate 300.

Motor 120 is for rotating the driving source driving photosensitive drums 61 grade, by motor support parts described later The side relative with the 2nd framework 112 in the 200 sidewall 111A being located at the 1st framework 111.Motor 120 is joined Be placed in the front portion of the 1st framework 111, protruding from the output shaft 122(in outside of sidewall 111A with reference to Fig. 3) on set There is gear 121.

It is the mechanism that the driving force of motor 120 is transferred to gear mechanism 140 with transmission mechanism 130, this band transmission Mechanism 130 includes: driving pulley 131, band 132 and driven pulley 133.

Driving pulley 131 is configured at the position can being engaged with gear 121, and this driving pulley 131 includes: with gear 121 gear part 131A being engaged and the belt wheel portion 131B being integrally formed with gear part 131A.

Driven pulley 133 is configured at the rear of the 1st framework 111, including: transfer a driving force to gear mechanism 140 Gear part 133A and the belt wheel portion 133B that is integrally formed with gear part 133A.

It is insulating properties with 132, is located at the belt wheel portion 131B of driving pulley 131 and the belt wheel of driven pulley 133 Between portion 133B, the rotary driving force of driving pulley 131 is transferred to driven pulley 133.

Gear mechanism 140 is the mechanism that the driving force transmitted from driven pulley is transferred to photosensitive drums 61 grade.This gear Mechanism 140 includes: drum gear 141, discharge gear mechanism 142, conveyance gear mechanism 143 and paper supply gear mechanism Structure 144.

Drum gear 141 is the gear rotating and driving photosensitive drums 61, and this drum gear 141 is configured at driven pulley 133 Rear be engaged with gear part 133A.

Discharging gear mechanism 142 is the mechanism transferring a driving force to distributing roller 8, and this discharge gear mechanism 142 configures Top in driven pulley 133.

Discharge gear mechanism 142 to include: transmit driving force by being engaged with gear part 133A of driven pulley 133 Discharge transmission gear 142A, by with discharge that transmission gear 142A be engaged and to transmit the 1st discharge of driving force middle Gear 142B, by with the 1st discharge idler gear 142B be engaged and transmit driving force the 2nd discharge idler gear 142C and be engaged by discharging idler gear 142C with the 2nd and transmit the distributing roller gear 142D of driving force.

Conveyance gear mechanism 143 is the mechanism transferring a driving force to conveying roller 33, and this conveyance gear mechanism 143 joins It is placed in the oblique back lower place of driven pulley 133.This conveyance gear mechanism 143 includes: with the gear part of driven pulley 133 The transmission gear 143A of 133A occlusion, it is configured at the 1st idler gear 143B of oblique back upper place transmitting gear 143A And it is configured at the conveying roller gear 145 at the rear of the 1st idler gear 143B.

Conveying roller gear 145 be rotate drive conveying roller 33 gear, this conveying roller gear 145 by with the 1st in Between gear 143B occlusion transmission driving force, described 1st idler gear 143B with transmit gear 143A be engaged.It addition, Conveying roller gear 145 is located at the conveying roll shaft 34(of conveying roller 33 with reference to Fig. 3).

Paper supply gear mechanism 144 is to transfer a driving force to paper feed roller 32A and the mechanism of separate roller 32B, this confession Paper gear mechanism 144 is configured at the lower section of conveyance gear mechanism 143.This paper supply gear mechanism 144 includes: be configured at 2nd idler gear 146 of the oblique front lower place of transmission gear 143A, be configured at the 2nd idler gear 146 tiltedly after under The paper feed roller gear 144A of side and be configured at the separate roller gear 144B of oblique back upper place of paper feed roller gear 144A.

1st idler gear 146 has: the tooth can being engaged with transmission gear 143A and paper feed roller gear 144A Wheel portion 146A, the toothless portion) 146B can not being engaged with transmission gear 143A and paper feed roller gear 144A, The time point of regulation makes transmission gear 143A be engaged with gear part 146A, thus transfers a driving force to paper feed roller tooth Wheel 144A and separate roller gear 144B.

Paper feed roller gear 144A is the gear rotating and driving paper feed roller 32A, and this paper feed roller gear 144A is by with the Gear part 146A of 2 idler gears 146 is engaged and transmits driving force.

Separate roller gear 144B be rotate drive separate roller 32B gear, this separate roller gear 144B by with confession Paper bowl gear 144A is engaged and transmits driving force.

Gear plate 300 is the parts of the metal system (having electric conductivity) supporting gear mechanism 140, this gear plate 300 It is configured at the position clipping gear mechanism 140 between the 1st framework 111.After structure about gear plate 300 Illustrate.

It addition, as it is shown on figure 3, framework 100 has: conductive plate 150, power supply board 160, cap assembly 170, gold Belong to parts 180, scanning board 190 and the motor support parts 200 of the example as the source of driving support member.

Conductive plate 150, such as, is formed by the plate of metal system as panel beating (having electric conductivity), this conductive plate 150 It is fixed on the 1st framework 111 and the 2nd in the way of the bottom of the bottom with the 2nd framework 112 that link the 1st framework 111 Framework 112.It addition, conductive plate 150, in the longitudinal direction, be configured at body side frame 110 central part somewhat after Side.

As shown in Figure 4 (a), pair of holes 150A the most front and back it is provided with in the left part of conductive plate 150 and right part With hole 150B.Hole 150A, 150B are for making the hole passed at the screw that above-below direction is through.Do not scheme by making Bolt through holes 150A, the 150B shown, screws in and is located at the not shown of the 1st framework the 111 and the 2nd framework 112 Screwed hole, thus the 1st framework the 111 and the 2nd framework 112 is fixed in left part and the right part of conductive plate 150.

Conductive plate 150 is provided with: shaft supporting part 151, extension stop 153 and fixed part 154.

Shaft supporting part 151 is to support to lift the part of parts 210, at the central part of the left and right directions of conductive plate 150 Right positions and left part are provided with a pair.It addition, shaft supporting part 151 be by cut-out mention conductive plate a part and Formed.

Hanging stop 153 is the part hooking elastomeric element 230 described later, is located at the right side of the shaft supporting part 151 in left side Position.It addition, as shown in Figure 4 (b), hang stop 153 and mention a part for conductive plate 150 by cut-out and arrange, Formed the most deviously after highlighting upward.

Returning Fig. 4 (a), fixed part 154 is the part of fixing cap assembly 170 described later, and this fixed part 154 is formed For highlighting upward from the right part of conductive plate 150.Fixed part 154 is provided with through fixing hole 154A.This is solid Determine the position (with reference to Fig. 3) that portion 154 is configured at the outside of the sidewall 112A entering the 2nd framework 112.

Conductive plate 150 is lifted parts about 210 and supports the most rotationally.

Lifting parts 210 is the parts making mounting table 31A move to paper feed roller 32A, such as, as panel beating Metal parts are formed.

Lifting parts 210 to have: abutting part 212, described abutting part is the part abutted with mounting table 31A；And Hole 217 is stopped with the extension hanging stop 153 relative configuration.

Hanging only hole 217 is the part hooking elastomeric element 230.

Such as, as shown in Figure 4 (b), elastomeric element 230 is the helical spring with electric conductivity, rear end 231 Being hung only hole 217 to hook, anterior end 232 is only hooked in hole 153 by extension.So, can by elastomeric element 230 Parts 210 will be lifted turn on simply with conductive plate 150.

Return Fig. 4 (a), lift parts 210 and have: as the 1st rotary shaft the 211, the 2nd of an example of spindle unit Rotary shaft 213 and spring supporting portion 214.

1st rotary shaft 211 is formed by electroconductive resin, and the 1st rotary shaft 211 has: by the right side of conductive plate 150 Axle portion 211A that the shaft supporting part 151 of side supports and be fixed on the fixed part 211B lifting parts 210.

2nd rotary shaft 213 is formed by electroconductive resin, and the 2nd rotary shaft 213 is by the axle in the left side of conductive plate 150 Supporting part 151 supports.So, parts 210 will can be lifted by the 1st rotary shaft the 211 and the 2nd rotary shaft 213 Turn on simply with conductive plate 150.

The substantially L-shaped (with reference to Fig. 2) that spring supporting portion 214 is formed as upward and rear extends, this spring Supporting part 214 is integrally formed with the 2nd rotary shaft 213.This spring supporting portion 214 is in the part extended upward Upper end has the hook portion 215 for engaging tension spring 220.

Tension spring 220 be make mounting table 31A near paper feed roller 32A to lift parts 210 force parts, This tension spring 220 has electric conductivity.The rearward end 221 of tension spring 220 is sticked in hook portion 215, its front end Portion 222 is sticked in gear plate 300.

As it is shown on figure 3, power supply board 160 is the circuit substrate of the supply of the inside to laser printer 1 electric power, this electricity Source substrate 160 is configured at the bottom of the 2nd framework 112.

Cap assembly 170 is the parts with electric conductivity covering power supply board 160, and this cap assembly 170 has: cover portion 171 and cap 172.

Cover portion 171 is formed as the box like of opening to the right, surrounds power supply board 160.It addition, as it is shown in figure 5, cover Portion 171 is provided with as the ground terminal 270 with an example of the grounding parts of the grounding connection of feed cable.

Cap 172 is configured to block the opening portion in cover portion 171, and this cap 172 turns on cover portion 171.It addition, Cap 172 is fixed with power supply board 160, cap 172 and the ground conductive of power supply board 160 by screw 172A.

It addition, as it is shown on figure 3, the bottom of bottom surface side in cover portion 171 and upper end are provided with for fixing cover portion The installing hole 173,174 of part 170, cap assembly 170, in installing hole 173, it is fixed in conduction by screw 113 The fixing hole 154A of plate 150, is fixed in the installation of metal parts 180 in installing hole 174 by screw 114 Hole 181 and be fixed on the fixing hole 112B being located at the 2nd framework 112.

Metal parts 180, such as, is made up of panel beating, is located at the installing hole 181,182 of bottom and upper end Fixing hole 112B, the 112C being located at the 2nd framework 112 it is fixed in by screw 114,115.

Scanning board 190 is the parts with electric conductivity supporting scanning element 5, this scanning board 190 and scanning element 5 Conducting.It addition, scanning board 190 be formed as by with the 1st framework the 111 and the 2nd framework 112 link in the way of to the left Right direction extends, and is provided with the fixed part 191 of a pair stretched out downwards from both ends at both ends around.

The fixed part 191 of a pair is respectively equipped with installing hole 191A, and the fixed part 191 on right side is fixed by screw 115 In the 2nd framework 112, the fixed part 191 in left side is being located at the 1st frame together with motor support parts 200 described later The fixing hole 111B of frame 111 is fixed on the 1st framework 111 by screw 116.Thus, scanning board 190 and metal Parts 180 are turned on by screw 115, and scanning board 190 is also switched on motor support parts 200.

Motor support parts 200 are the parts of the metal system (having electric conductivity) supporting motor 120, are located at down The installing hole 201,202 of end and upper end is fixed in by screw 116,117 and is located at the 1st framework 111 Fixing hole 111B, 111C.

(structure of gear plate)

It follows that the detailed construction of gear plate 300 is illustrated.

Shown in Fig. 2, gear plate 300 is such as fixed in the position of the substantially latter half of the 1st framework 111, has: One counter-lateral quadrents 311A and 311B, recess 310, holding section the 320, the 2nd holding section 330 and notch part 340.

Sidepiece 311A is formed as forwards extending from the front end of the bottom of gear plate 300, and sidepiece 311B is formed as Rearward extend near the central authorities of the bottom of gear plate 300.And, sidepiece 311A, 311B extend forwards, backwards And formed, thus the part composition caved in upside (lifting the opposition side of parts 210 side) formed between them Recess 310.This recess 310 is configured at the position corresponding with lifting parts 210.

The bottom of the sidepiece 311A of front side (side) is located in holding section 320, i.e. lift the front of parts 210, This holding section 320 has the hook-shaped of forward side opening.The leading section 222 of tension spring 220 is sticked in this engaging Portion 320, thus gear plate 300 is turned on lifting parts 210 by tension spring 220.

The upper rear end of the sidepiece 311B of rear side is located in 2nd holding section 330.As it is shown on figure 3, the 2nd holding section 330 After being formed as highlighting to the right, the hook-shaped that its top is stretched out downwards, engaging has conductive member 250.

Conductive member 250 is such as to have the helical spring of electric conductivity, and its upper end 251 engages with hook portion 241, Its bottom 252 engages with the 2nd holding section 330.So, by making the bottom 252 and of conductive member 250 2 holding sections 330 engage, and gear plate 300 is turned on conveying roll shaft 34 by conductive member 250 and bearing 240.

Notch part 340 is that the rear end lower with gear plate 300 forwards caves in the upside of sidepiece 311B and formed. It addition, conveying roller 33, from left and right directions (conveying roll shaft 34 axial), it is configured at overlapping with notch part 340 Position.Here, such as, if not having the structure of notch part 340, gear plate 300 can only be assembled in Conveying roller 33 and conveying roller gear 145 is assembled before 1st framework 111.But, in present embodiment, gear plate 300 have notch part 340, even if so after gear plate 300 is assembled to the 1st framework 111, it is also possible to from The position of notch part 340 assembles conveying roller 33 and conveying roller gear 145.Therefore, it is possible to improve oneself of assembly operation By spending.

The laser printer 1 constituted as above, the 1st framework 111 of its fixed gear plate 300 is resinous, So gear plate 300 ground connection can not be made by the 1st framework 111.But, in the laser printer 1 of present embodiment, As in figure 2 it is shown, gear plate 300 turns on lifting parts 210 via tension spring 220.As shown in Figure 4 (a), This lifts parts 210 via the 1st rotary shaft the 211, the 2nd rotary shaft 213 and elastomeric element 230 and conductive plate 150 Conducting.Further, as shown in Fig. 3, Fig. 5, conductive plate 150 turns on cover portion 171, cover portion 171 and ground terminal 270 conductings.

That is, gear plate 300, lift parts 210 and conductive plate 150 is led with ground terminal 270 via cover portion 171 Logical, electrical grounding.Therefore, it is possible to make gear plate 300 ground connection by easy structure.

It addition, conveying roll shaft 34 is metal (having electric conductivity), so easily accumulation is carried by conveying roller 33 The electric charge on surface of paper using P.But, in the laser printer 1 of present embodiment, the axle of conveying roll shaft 34 Hold 240 to be turned on by conductive member 250 with gear plate 300.

That is, conveying roll shaft 34 turns on ground terminal 270 via bearing 240 and gear plate 300, electrical grounding. Therefore, even if being accumulated in the charge accumulated on paper using P surface on conveying roll shaft 34, it is also possible to via gear plate 300 Will build up on the electric charge in conveying roll shaft 34 to remove.

It addition, as in figure 2 it is shown, the band 132 of band transmission mechanism 130 has insulating properties, so motor support parts 200 is the structure being not turned on gear plate 300.But, in the laser printer 1 of present embodiment, such as Fig. 3 Shown in, motor support parts 200 turn on scanning board 190.This scanning board 190 is via screw 115 and metal portion Part 180 turns on, and metal parts 180 turns on cover portion 171.

That is, motor support parts 200, scanning board 190 and metal parts 180 are via cover portion 171 and earth terminal Son 270 conducting, electrical grounding.Therefore, it is possible to make motor support parts 200 connect simply via scanning board 190 Ground.

It addition, scanning element 5 also turns on scanning board 190, thus this scanning element 5 via scanning board 190 with connect Ground terminal 270 turns on, electrical grounding.Therefore, it is possible to make scanning element 5 ground connection simply via scanning board 190.

It addition, the sidepiece 311A of the front side (side) of recess 310, institute are located in the holding section 320 of gear plate 300 With can prevent gear plate 300 with lift parts 210 interference, again can be by easy structure to lifting parts 210 Force.

Above, embodiments of the present invention are illustrated, but the present invention is not limited to above-mentioned embodiment.About Concrete structure, it is possible to the most suitably change.

In above-mentioned embodiment, lift parts 210 by being connected and ground connection with cap assembly 170, but lift parts 210 Can also be directly grounded, it is also possible to by making conductive plate 150 ground connection and ground connection.

In above-mentioned embodiment, as force application part exemplified with tension spring 220, but the present invention is not limited to this, For example, it is also possible to be leaf spring, torsion spring.

In above-mentioned embodiment, to elastomeric element 230 exemplified with having the helical spring of electric conductivity, but the present invention is not It is defined in this, for example, it is also possible to be conductive rubber.

In above-mentioned embodiment, to conductive member 250 exemplified with having the helical spring of electric conductivity, but the present invention is not It is defined in this, for example, it is also possible to be electroconductive resin.

Claims

1. an image processing system, it is characterised in that have:

Support the resin-made frame of image forming part；

The gear linked with described image forming part；

Having the gear plate of electric conductivity, described gear plate is configured at the position clipping described gear between described framework, Support described gear；

Paper feed roller；

Mounting table, described mounting table is placed with recording sheet, it is possible to make described recording sheet move to described paper feed roller；

Lift parts, described in lift parts there is electric conductivity, make described mounting table move to described paper feed roller；And

Force application part, described force application part engages with the described parts that lift, and makes described mounting table close to described paper feed roller Ground lifts parts force to described,

Described lift parts electrical grounding,

Described force application part has electric conductivity, engages with the holding section being arranged at described gear plate.

Image processing system the most according to claim 1, it is characterised in that the profile of described gear plate has recessed Portion, described recess is formed as to the described opposition side depression lifting component side,

Described holding section is arranged at the side in the counter-lateral quadrents clipping described recess.

Image processing system the most according to claim 1, it is characterised in that have:

Conveying roller, described conveying roller has axle, and this axle has electric conductivity, is different from the member supporting of described gear plate； And

Conductive member, described conductive member has electric conductivity, makes described axle turn on described gear plate.

Image processing system the most according to claim 3, it is characterised in that have described in can pivotally supporting The bearing of axle, described bearing has electric conductivity,

Described gear plate has the 2nd holding section, and described 2nd holding section is positioned at described engaging relative to the described parts that lift The opposition side in portion,

Described conductive member links described bearing and described 2nd holding section.

Image processing system the most according to claim 3, it is characterised in that described gear plate has notch part,

From described axle axially, described conveying roller is positioned at the position overlapping with described notch part.

6. according to the image processing system described in any one in claim 1 to 5, it is characterised in that described framework Having: resinous 1st framework, described 1st framework clips described image forming part and is configured at side, fixing described Gear plate；And resinous 2nd framework, described 2nd framework clips described image forming part and is configured at opposite side,

This image processing system has: conductive plate, and described 1st framework is linked by described conductive plate with described 2nd framework, And described conductive plate lifts parts conducting with described；And

Having the cap assembly of electric conductivity, described cap assembly is fixed on described 2nd framework, covers power supply board, and electrically The grounding parts conducting of ground connection,

Described conductive plate is by being connected and ground connection with described cap assembly.

Image processing system the most according to claim 6, it is characterised in that described in lift parts there is spindle unit, Described spindle unit has electric conductivity, and this spindle unit turns on described conductive plate.

Image processing system the most according to claim 6, it is characterised in that there is elastomeric element, institute further State elastomeric element and there is electric conductivity, be used for linking described conductive plate and lift parts with described, turn on described conductive plate and institute State and lift parts.

Image processing system the most according to claim 6, it is characterised in that have:

It is located at the driving source of described 1st framework；

The driving force in described driving source is transferred to the band transmission mechanism of described gear；

Having the scanning board of electric conductivity, described 1st framework is linked by described scanning board with described 2nd framework, and support sets Scanning device in described image forming part；And

Support the driving source support member with electric conductivity in described driving source,

Described scanning device and described driving source support member are connected and ground connection with described cap assembly via described scanning board.