CN204440013U - Developer box - Google Patents

Abstract

There is provided a kind of developer box, comprising: housing, have and fill mouth and teat, fill mouth and run through housing in a first direction, be configured to allow developer to pass through, teat is adjacent with filling mouth, gives prominence to along first direction; And closure member, have fitting portion and auxiliary section, fitting portion extends in a first direction, and be embedded in filling mouth, auxiliary section extends in a direction perpendicular to the first direction, matches with teat, and closure member is used for closing fills mouth.Distance from the part matched with auxiliary section of teat to the head end of teat is the first distance, and the part coincided with the periphery of filling mouth viewed from the first direction distance in a first direction of fitting portion is second distance, and the first distance is longer than second distance.Developer box of the present utility model, can successfully be arranged on filling mouth by closure member.

Description

Developer box

Technical field

The utility model relates to a kind of developer box be arranged in the image forming apparatus adopting electrofax mode.

Background technology

As the developer box being arranged on image forming apparatus, such as known such Delevoping cartridge, it comprises the housing that mouth filled by the toner had for filling toner in inside, and the lid (for example, referring to following patent documentation 1) of mouth filled by closed toner.

Patent documentation 1: Japanese Unexamined Patent Publication 2012-53095 publication

In the Delevoping cartridge that above-mentioned patent documentation 1 is recorded, under the state that lid is arranged on toner filling mouth, abutted with the flange part of housing by the handle portion of lid, located in a rotational direction.

But, in this Delevoping cartridge, there is operator when Jiang Gai is arranged on toner filling mouth, the situation that handle portion does not abut with flange part.

If handle portion does not abut with flange part, then can not determine that lid fills the sense of rotation position of mouth relative to toner, operator needs while determine to cover the sense of rotation position of filling mouth relative to toner, fill in mouth while lid to be embedded into toner, operation lid being arranged on toner filling mouth may become complicated.

Utility model content

In view of this, the purpose of this utility model is that providing a kind of successfully can be arranged on the developer box of filling mouth by closure member.

(1) to achieve these goals, the utility model provides a kind of developer box, comprises housing and closure member.

Described housing has fills mouth and teat, and described filling mouth runs through described housing in a first direction, and be configured to allow developer to pass through, described teat is adjacent with described filling mouth, gives prominence to along described first direction.

Described closure member has fitting portion and auxiliary section, and described fitting portion extends in said first direction, is embedded in described filling mouth, described auxiliary section extends on the direction vertical with described first direction, match with described teat, described closure member is used for closing described filling mouth

Distance from the part matched with described auxiliary section of described teat to the head end of described teat is the first distance, part distance in said first direction inside the periphery being positioned at described filling mouth viewed from described first direction of described fitting portion is second distance, and described first distance is longer than described second distance.

According to said structure, the end of the first direction of fitting portion, when closure member being installed to filling mouth, is first configured in the periphery of filling mouth by operator.

Now, the part be positioned at viewed from first direction under closure member is arranged on the state of filling mouth inside the periphery of filling mouth of fitting portion is positioned at the first direction foreign side of filling mouth.

Herein, distance from the part matched with auxiliary section of teat to the head end of teat is the first distance, the part distance be in a first direction positioned at viewed from first direction inside the periphery of filling mouth of fitting portion is second distance, and the first distance is longer than second distance

Therefore, operator can be configured in the periphery of filling mouth during in the end of the first direction of fitting portion, auxiliary section is coupled to the head end of teat.

Thus, operator can be configured in the periphery of filling mouth during in the end of the first direction of fitting portion, determine the sense of rotation position of closure member relative to filling mouth.

Then, fitting portion under the state of sense of rotation position determining closure member relative to filling mouth, can insert and fills in mouth by operator.

Its result, closure member successfully can be arranged on filling mouth by operator.

(2) developer box of the present utility model, also comprises rotary body, and described rotary body is configured to accept the driving force from outside, thus rotates about the rotation along described first direction.Described closure member supports described rotary body.

According to said structure, without the need to separately establishing the component for supporting rotator, closure member supporting rotator can be utilized.

Its result, can make the structure of developer box become simple.

(3) developer box of the present utility model, described rotary body is detected body, and described detected body is configured to be detected by the pick-up unit of outside.

According to said structure, without the need to separately establishing the component for supporting detected body, closure member can be utilized to support detected body.

(4) developer box of the present utility model, described closure member has rake, and described rake tilts to described first direction foreign side along with the sense of rotation to described rotary body.The described first direction foreign side that is tilted to that described rotary body is configured to along with rotating to described sense of rotation along described rake advances.

According to said structure, rotary body can be made to rotate and to advance to first direction foreign side.

Therefore, when rotary body rotates, easily rotary body can be contacted from first direction foreign side.

(5) developer box of the present utility model, also comprises: agitating member, is configured to stir the developer in described housing; And stirring gear, be fixed on the end of described agitating member, be configured to described agitating member is rotated.Described rotary body is configured in the driving force accepted from outside thus stops after have rotated the schedule time.Described closure member has limiting unit, and described limiting unit is configured to limit the described rotary body that have rotated the described schedule time and continues mobile.Described limiting unit is configured to adjacent with described stirring gear along the rotational trajectory of described stirring gear.

According to said structure, the undesirable rotation of restriction rotary body after have rotated the schedule time can be guaranteed by limiting unit.

In addition, limiting unit, in the mode of the rotational trajectory along stirring gear, is configured in expeditiously and stirs around gear.

Therefore, while the undesirable rotation guaranteeing restriction rotary body, the miniaturization of developer box can be realized.

(6) developer box of the present utility model, also comprises covering member, and described covering member covers described rotary body at least partially.Described auxiliary section is exposed from described covering member.

According to said structure, can guarantee to cover rotary body at least partially while, easily confirm the cooperation of auxiliary section relative to teat.

(7) developer box of the present utility model, can move between the first position and the second position under the state of described rotary body before accepting from the driving force of outside, described primary importance is the position that can accept described driving force, and the described second place is the position that can not accept described driving force.Described covering member has fixed part, and described fixed part is configured to the position of the described rotary body being fixed in the described second place.

According to said structure, before rotary body accepts the driving force from outside, by utilizing covering member, rotary body can be made to be fixed on the second place that can not accept driving force.

Therefore, if rotation position in the second place time driving force is input to developer box, so rotary body non rotating, the driving inspection of developer box can be carried out.

(8) developer box of the present utility model, described auxiliary section has through hole, and described through hole runs through described auxiliary section in said first direction.Described teat is configured to insert described through hole.

According to said structure, auxiliary section can be coordinated with teat by simple structure.

(9) developer box of the present utility model, described housing has a portion, and described cylinder portion gives prominence in said first direction from the periphery of described filling mouth.Described fitting portion size is in said first direction 1.5 ~ 3 times of the inside surface distance in said first direction from the described first direction ora terminalis in described cylinder portion to described housing.

According to said structure, relative to the first direction ora terminalis in cylinder portion to the inside surface distance in a first direction of housing, fitting portion has the size in a first direction of 1.5 ~ 3 times.

Therefore, fitting portion can be made stably to guarantee to be embedded in filling mouth.

(10) developer box of the present utility model, described first distance is the distance from the face facing with described housing of described auxiliary section to the head end of described teat.

According to said structure, operator can be configured in the periphery of filling mouth during in the end of the first direction of fitting portion, really auxiliary section is coupled to the head end of teat.

(11) the utility model provides a kind of developer box, comprises housing and closure member.

Described housing has filling mouth, and described filling mouth is configured to allow developer to pass through, and described housing is configured at inner receiving photographic developer.

Described closure member carrys out closed described filling mouth by being installed to described filling mouth towards installation direction.

Described closure member has auxiliary section, and described auxiliary section extends on the direction vertical with described installation direction,

Described housing has teat, and described teat is given prominence to along described installation direction, is configured to guide described auxiliary section along described installation direction.

According to said structure, operator, when closure member being installed to filling mouth, can guide auxiliary section by teat, fills in mouth while inserted by fitting portion.

Its result, closure member successfully can be arranged on filling mouth by operator.

Developer box of the present utility model, can successfully be arranged on filling mouth by closure member.

Accompanying drawing explanation

Fig. 1 is the central cross sectional view of the Delevoping cartridge of the embodiment illustrated as developer box of the present utility model.

Fig. 2 is the central cross sectional view of the printer being provided with Delevoping cartridge shown in Fig. 1.

Fig. 3 is the stereographic map of Delevoping cartridge shown in Fig. 1 viewed from lower left.

Fig. 4 is the stereographic map of Delevoping cartridge shown in Fig. 1 viewed from left front.

Fig. 5 A is the left side view of Delevoping cartridge shown in Fig. 3.

Fig. 5 B illustrates the state of the gear cap of taking off Delevoping cartridge shown in Fig. 5 A.

Fig. 6 is the exploded perspective view of Delevoping cartridge shown in Fig. 3 viewed from lower left.

Fig. 7 is the exploded perspective view of the state of taking off the lid of toner shown in Fig. 6 viewed from lower left.

Fig. 8 is the A-A cut-open view of Fig. 5 A.

Fig. 9 A illustrates to toner to fill the key diagram that mouth embeds the operation of toner lid, illustrates and is placed in a portion by toner lid, makes guide hump insert state in the inserting hole of auxiliary section.

Fig. 9 B is that then Fig. 9 A goes on to say the key diagram of the operation of filling mouth embedding toner lid to toner, illustrates that toner lid is embedded in the state that mouth filled by toner.

Figure 10 is the B-B cut-open view of Fig. 9 A.

Figure 11 is the figure that fixture (jig) is described.

Figure 12 A is the key diagram illustrating that the driving of Delevoping cartridge detects, and the state of moving detection of gear with fixture is to the left shown.

Figure 12 B illustrates the state of taking off gear cap in fig. 12.

Figure 13 is the C-C cut-open view of Figure 12 A.

Figure 14 A is the key diagram of the warm-up operation that image forming apparatus when being provided with Delevoping cartridge is described, the state that the auxiliary section of stirrer gear abuts with detection of gear is shown.

Figure 14 B is that then Figure 14 A goes on to say the key diagram of the warm-up operation of image forming apparatus when being provided with Delevoping cartridge, and the second gear part of stirrer gear and the state of detection of gear engagement are shown.

Figure 15 A is that then Figure 14 B goes on to say the key diagram of the warm-up operation of image forming apparatus when being provided with Delevoping cartridge, illustrates that the detection projection in clockwise direction downstream when seeing, left side abuts with the abutting part of actuator, actuator is positioned at the state detecting position.

Figure 15 B is that then Figure 15 A goes on to say the key diagram of the warm-up operation of image forming apparatus when being provided with Delevoping cartridge, and engaging by the state removed of the second gear part of stirrer gear and detection of gear is shown.

Figure 16 A is the upward view seeing gear train shown in Figure 14 A from below.

Figure 16 B is the upward view seeing gear train shown in Figure 15 A from below.

Embodiment

1, the summary of Delevoping cartridge

As the Delevoping cartridge 1 of an example of developer box, as shown in Figure 1, there is developer roll 2, donor rollers 3, thickness margining tablet 4 and toner accommodating part 5.

In the following description, when mentioning the direction of Delevoping cartridge 1, being upper and lower benchmark by the state of Delevoping cartridge 1 horizontal positioned.That is, being top above the paper of Fig. 1, is below below paper.The paper right of Fig. 1 is front, and the paper left of Fig. 1 is rear.Be the benchmark of left and right during Delevoping cartridge 1 viewed from front.That is, the paper nearside of Fig. 1 is left, and paper distally is right.Left and right directions is an example of first direction.

Developer roll 2 is rotatably supported on the rearward end of Delevoping cartridge 1.Developer roll 2 has development roll shaft 2A and developer roll body 2B.

2A is cylindric in the cardinal principle extended in the lateral direction for development roll shaft.

Developer roll body 2B is in the general cylindrical shape extended in the lateral direction.Developer roll body 2B is made up of the rubber with electric conductivity.

Donor rollers 3 is configured in the front lower place of developer roll 2.Donor rollers 3 is rotatably supported on Delevoping cartridge 1.Donor rollers 3 has supply roll shaft 3A and donor rollers body 3B.

3A is cylindric in the cardinal principle extended in the lateral direction for supply roll shaft.

Donor rollers body 3B is in the general cylindrical shape extended in the lateral direction.Donor rollers body 3B is made up of the sponge with electric conductivity.Donor rollers body 3B contacts with developer roll body 2B.

Thickness margining tablet 4 is configured in the front upper place of developer roll 2.Thickness margining tablet 4 contacts with the leading section of developer roll 2.

Toner accommodating part 5 is configured in the front of donor rollers 3 and thickness margining tablet 4.Toner accommodating part 5 is configured to hold the toner as an example of developer.Toner accommodating part 5 has the stirrer 6 of an example as agitating member.

Stirrer 6 is rotatably supported in toner accommodating part 5.

2, the use-pattern of Delevoping cartridge

As shown in Figure 2, Delevoping cartridge 1 is installed in image forming apparatus 11 and uses.

Image forming apparatus 11 is black-and-white printers of electrofax mode.Image forming apparatus 11 has: as the apparatus body 12 of an example of outside, handle box 13, scanning element 14 and fixation unit 15.

Apparatus body 12 is in substantially box-like.Apparatus body 12 has peristome 16, protecgulum 17, sheet feed stacker 18 and ADF dish 19.

Peristome 16 is configured in the leading section of apparatus body 12.Peristome 16 runs through inside and outside apparatus body 12 in the longitudinal direction, is configured to allow handle box 13 to pass through.

Protecgulum 17 is configured in the leading section of apparatus body 12.Protecgulum 17 extends in the vertical direction, with its bottom for fulcrum is supported on the antetheca of apparatus body 12 swingably.Protecgulum 17 is configured to open or close peristome 16.

Sheet feed stacker 18 is configured in the bottom of apparatus body 12.

ADF dish 19 is configured in the latter half of of the upper wall of apparatus body 12.

Handle box 13 is contained in the above-below direction central authorities substantially of apparatus body 12.Handle box 13 is configured to install and remove relative to apparatus body 12.Handle box 13 has bulging box 20 and Delevoping cartridge 1.

Drum box 20 has photosensitive drums 21, corona (scrotron) type charged device 22 and transfer roll 23.

Photosensitive drums 21 is rotatably supported on the rearward end of bulging box 20.

Corona type charged device 22 configures across interval in the back upper place of photosensitive drums 21 and photosensitive drums 21.

Transfer roll 23 is configured in the below of photosensitive drums 21.Transfer roll 23 contacts with the bottom of photosensitive drums 21.

Delevoping cartridge 1 is in the front of photosensitive drums 21, and the mode contacted with the leading section of photosensitive drums 21 with developer roll 2 is arranged on bulging box 20

Scanning element 14 is configured in the top of handle box 13.Scanning element 14 is configured to based on view data to photosensitive drums 21 Emission Lasers bundle.

Fixation unit 15 is configured in the rear of handle box 13.Fixation unit 15 has warm-up mill 24 and backer roll 25, and backer roll 25 contacts with pressure with the posterior end portion of warm-up mill 24.

When image forming apparatus 11 starts image forming operation, corona type charged device 22 makes the surface uniform of photosensitive drums 21 charged.Scanning element 14 makes the surface of photosensitive drums 21 expose.Thus, the electrostatic latent image based on view data is formed on the surface of photosensitive drums 21.

Toner in stirrer 6 agitation of toner accommodation section 5, is supplied to donor rollers 3.The toner supplied by stirrer 6 is supplied to developer roll 2 by donor rollers 3.Now, toner is positive polarity frictional electrification between developer roll 2 and donor rollers 3, is carried on developer roll 2.The thickness of the toner that developer roll 2 carries is limited in certain thickness by thickness margining tablet 4.

The toner that developer roll 2 carries is fed into the electrostatic latent image on photosensitive drums 21 surface.Thus, toner image is carried on the surface of photosensitive drums 21.

Paper P is supplied between photosensitive drums 21 and transfer roll 23 from feed tray 18 one at a time by the predetermined instant that is rotated in of various roller.The toner image on photosensitive drums 21 surface is transferred on paper P by time between photosensitive drums 21 and transfer roll 23 at paper P.

Then, paper P is being heated by time between warm-up mill 24 and backer roll 25 and pressurizeed.Thus, the toner image on paper P is heat-fixed on paper P.Then, paper P is discharged to ADF dish 19.

3, the detailed description of Delevoping cartridge

As shown in Figures 3 and 4, Delevoping cartridge 1 has development framework 31 as an example of housing and drive division 30.

(1) development framework

Development framework 31 is in substantially box-like.Development framework 31 has pair of sidewalls 35, lower wall 36, antetheca 37 and upper wall 38.

Pair of sidewalls 35 is configured in each of left and right directions both ends of development framework 31 respectively.In pair of sidewalls 35 each in extend on fore-and-aft direction and above-below direction side-looking time general rectangular tabular.As shown in Figure 7, the sidewall 35 of left has idle pulley back shaft 39, fills the guide hump 49 of mouth 40, cylinder portion 48 and an example as teat as the toner of an example of filling mouth.

Idle pulley back shaft 39 is configured in the fore-and-aft direction central authorities substantially of left sidewall 35.Idle pulley back shaft 39 is cylindric in the cardinal principle extended to the left from the left surface of left sidewall 35.

The leading section that mouth 40 is configured in the sidewall 35 of left filled by toner.Substantial circular when toner fills mouth 40 in side-looking, runs through left sidewall 35 in the lateral direction.Toner is filled mouth 40 and is communicated with in toner accommodating part 5.

The general cylindrical shape that cylinder portion 48 extends to the left in the circumference of filling mouth 40 from toner.Cylinder portion 48 and toner are filled mouth 40 and are had central axis.The internal diameter in cylinder portion 48 is identical with the internal diameter that mouth 40 filled by toner.

The back lower place that mouth 40 filled by guide hump 49 and toner is adjacent to configure.Guide hump 49 is cylindric in the cardinal principle extended to the left from the left surface of left sidewall 35.The head end of guide hump 49 and the outer radial periphery edge chamfering of left part.

As shown in Figures 3 and 4, lower wall 36 is in the cardinal principle tabular extended on fore-and-aft direction and left and right directions.The both ends, left and right of lower wall 36 and the bottom of pair of sidewalls 35 continuous.

Antetheca 37 is in the cardinal principle tabular extended on above-below direction and left and right directions.The bottom of antetheca 37 and the leading section of lower wall 36 continuous.The both ends, left and right of antetheca 37 are continuous with the leading section of each of pair of sidewalls 35 respectively.Antetheca 37 has grip part 50.

Upper wall 38 is in the cardinal principle tabular extended on fore-and-aft direction and left and right directions.The leading section of upper wall 38 and the upper end of antetheca 37 continuous.The both ends, left and right of upper wall 38 are continuous with the upper end of each of pair of sidewalls 35 respectively.

(2) drive division

Drive division 30 is configured in the left of development framework 31 in the left part of Delevoping cartridge 1.As shown in Fig. 5 A and Fig. 5 B, drive division 30 has the gear cap 34 of gear train 33, detecting unit 32 and an example as covering member.

(2-1) gear train

As shown in Fig. 5 B and Fig. 6, gear train 33 has development connection 41, developing gear 42, supply gear 43, idle pulley 44 and the stirrer gear 45 of an example as stirring gear.

Development connection 41 is configured in the rearward end of Delevoping cartridge 1.Development connection 41 is cylindric in the cardinal principle extended in the lateral direction.Development connection 41 has gear part 51 and attachment 52.

Gear part 51 is configured in the cardinal principle right-hand part of development connection 41.Gear part 51 is that extend in the lateral direction, that left part is closed general cylindrical shape.

Attachment 52 is in the general cylindrical shape extended to the left from the left wall of gear part 51.Attachment 52 and gear part 51 have central axis.Attachment 52 has a pair abutting part 53.

Developing gear 42 is configured in the back lower place of development connection 41.Developing gear 42 is discoideus in the cardinal principle in the lateral direction with thickness.Developing gear 42 is meshed with the posterior end portion of the gear part 51 of development connection 41.

Supply gear 43 is configured in the below of development connection 41.Supply gear 43 is discoideus in the cardinal principle in the lateral direction with thickness.Supply gear 43 is meshed with the bottom of the gear part 51 of development connection 41.

Idle pulley 44 is configured in the front of development connection 41.Idle pulley 44 is rotatably supported on the idle pulley back shaft 39 of development framework 31.Idle pulley 44 has large diameter gear 44A and small-diameter gear 44B integratedly.

Large diameter gear 44A is configured in the left part of idle pulley 44.Large diameter gear 44A is discoideus in the cardinal principle in the lateral direction with thickness.Large diameter gear 44A engages with the leading section of the gear part 51 of development connection 41.

Small-diameter gear 44B is cylindric in the cardinal principle extended to the right from the right surface of large diameter gear 44A.Small-diameter gear 44B and large diameter gear 44A has central axis.The external diameter of small-diameter gear 44B is less than the external diameter of large diameter gear 44A.

Stirrer gear 45 is configured in the front lower place of idle pulley 44.Stirrer gear 45 can not be embedded in the left part of the turning axle 6A of stirrer 6 with the relative rotation.Stirrer gear 45 has the first gear part 45A, the second gear part 45B and interference ribs 45C.

First gear part 45A is configured in the right part of stirrer gear 45.First gear part 45A is discoideus in the cardinal principle in the lateral direction with thickness.First gear part 45A engages with the leading section of the small-diameter gear 44B of idle pulley 44.

Second gear part 45B is in the general cylindrical shape extended to the left from the left surface of the first gear part 45A.Second gear part 45B and the first gear part 45A has central axis.The external diameter of the second gear part 45B is less than the external diameter of the first gear part 45A.

Interference ribs 45C gives prominence to from the left surface of the first gear part 45A outward to the left in the footpath of the second gear part 45B.

(2-2) detecting unit

As shown in FIG. 6 and 7, detecting unit 32 has the detection of gear 46 of the toner lid 47 as an example of closure member and an example as rotary body and detected body.

The mode that toner lid 47 fills mouth 40 with closed toner is embedded in toner filling mouth 40.Toner lid 47 has closure 91, detection of gear back shaft 93, guiding rib 94, first retainer 99, the second retainer 100 as an example of limiting unit, auxiliary section 101, insertion section 92 as an example of fitting portion.

The tabular of general rectangular when closure 91 is the side-looking in the lateral direction with thickness.

Detection of gear back shaft 93 is configured in the cardinal principle central authorities of closure 91.Detection of gear back shaft 93 is cylindric in the cardinal principle extended to the left from the left surface of closure 91.

Guiding rib 94 around detection of gear back shaft 93 and detection of gear back shaft 93 configure across interval.Guiding rib 94 extends to the left from the left surface of closure 91, the semi-circular cylindrical open in rearward end.Guiding rib 94 and detection of gear back shaft 93 have central axis.Guiding rib 94 has the first dip plane 94A, parallel surface 94B as an example of rake and the second dip plane 94C.

First dip plane 94A is the left surface of the left side apparent time counter clockwise direction upstream end thereof of guiding rib 94.First dip plane 94A counterclockwise tilts to the left along with apparent time to the left.

Parallel surface 94B is configured in the left side apparent time counterclockwise downstream of the first dip plane 94A.Parallel surface 94B and the first dip plane 94A is continuous, counterclockwise extends along left side apparent time.Parallel surface 94B is parallel with the left surface of closure 91, identical to the distance of the left and right directions of parallel surface 94B to make from the left surface of closure 91.

Second dip plane 94C is the left surface of the left side apparent time counter clockwise direction downstream end of guiding rib 94.The left side apparent time of the second dip plane 94C and parallel surface 94B counterclockwise configures in downstream continuously.Second dip plane 94C counterclockwise tilts to the right along with apparent time to the left.

First retainer 99 configures across interval at the rear of the first dip plane 94A.First general plate that retainer 99 is given prominence to the left in the left surface from closure 91, bending mode extends in the vertical direction with the periphery of the front bottom of the first gear part 45A along stirrer gear 45.

Second retainer 100 configures across interval at the rear of the second dip plane 94C.Second general plate that retainer 100 is given prominence to the left in the left surface from closure 91, bending mode extends in the vertical direction with the periphery of the front upper end of the first gear part 45A along stirrer gear 45.

Auxiliary section 101 is configured in the posterior end portion of toner lid 47.Cardinal principle semicircular tabular when auxiliary section 101 is side-looking continuous in, that extend to the back lower place the posterior end portion of closure 91.The bottom of auxiliary section 101 is exposed (with reference to Fig. 3) from the bottom of aftermentioned first lid 61 of gear cap 34.Auxiliary section 101 has the inserting hole 101A of an example as through hole.

Central authorities substantially when inserting hole 101A is configured in the side-looking of auxiliary section 101.Substantial circular when inserting hole 101A is side-looking, runs through auxiliary section 101 in the lateral direction.The internal diameter of inserting hole 101A is slightly larger than the external diameter of the guide hump 49 of development framework 31.

As shown in Figure 8, insertion section 92 is in the general cylindrical shape extended to the right from the right surface of closure 91.The internal diameter that the external diameter of insertion section 92 fills mouth 40 than toner is slightly large.Insertion section 92 is inserted in toner and fills in mouth 40.Insertion section 92 has closure 92A and coordinates fixed part 92B.

Closure 92A is the left-half of insertion section 92, is configured in the inwardly side, footpath that mouth 40 filled by toner.The internal diameter that mouth 40 filled by external diameter and the toner of closure 92A is substantially identical.Closure 92A has multiple closed rib 92C.

Multiple closed rib 92C is the outer peripheral face radius vector ridge that is outstanding a little, that extend in whole circumference outward from closure 92A respectively.Multiple closed rib 92C is mutual in the lateral direction to be configured side by side across interval.

Cooperation fixed part 92B is the right half part of insertion section 92, is configured in the right place of the right surperficial 35A of the left sidewall 35 of development framework 31.The internal diameter coordinating the external diameter of fixed part 92B to fill mouth 40 than toner is large.Coordinate the outer peripheral face S of the head end (that is, right part) of fixed part 92B along with to the right and radius vector inwardly just tilts.

Left and right directions distance D1 between the point of crossing C of the dummy line L that the inner peripheral surface coordinating the outer peripheral face S of fixed part 92B head end and toner to fill mouth 40 extends in the lateral direction and the right surperficial 101B of auxiliary section 101, left and right directions distance D2 between the head end edge E1 (that is, left end edge) of the guide hump 49 of ratio development the framework 31 and right surperficial 101B of auxiliary section 101 is short.In other words, the part from guide hump 49 joined together by auxiliary section 101 is to the left and right directions distance D2 of the head end edge E1 of guide hump 49, longer than the left and right directions distance D1 of the part overlapped with dummy line L when projecting in the lateral direction in insertion section 92.Left and right directions distance D1 is an example of second distance.Left and right directions distance D2 is an example of the first distance.Relative to the left and right directions distance D4 between the left end edge 48A in cylinder portion 48 and the right surperficial 35A of left sidewall 35, coordinate the left and right directions dimension D 3 of left and right directions distance, the i.e. insertion section 92 between the right-hand member edge E2 of fixed part 92B and the right surperficial 101B of auxiliary section 101, it is such as more than 1.5 times, such as less than 3 times, 1.9 times specifically.Specifically, the left and right directions dimension D 3 of insertion section 92 is 7.7mm.The left and right directions distance D4 of the left end edge 48A in cylinder portion 48 and the right surperficial 35A of left sidewall 35 is 4mm.

As shown in Fig. 5 B and Fig. 6, detection of gear 46 is cylindric in the cardinal principle extended in the lateral direction.That is, the central axis A of detection of gear 46 extends in the lateral direction.Detection of gear 46 is rotatably supported on the detection of gear back shaft 93 of toner lid 47.Detection of gear 46 is always exerted a force to the right by Compress Spring 102 (with reference to Fig. 6).Detection of gear 46 has back up pad 95, support tube 103, the gear part 96 as an example of receiving portion, the test section 97 of an example as detected portion, sliding part 98 and projection 90.

Back up pad 95 is configured in the left and right directions central authorities of detection of gear 46.Back up pad 95 is discoideus in the cardinal principle in the lateral direction with thickness.

Support tube 103 is configured in the radial central authorities substantially of detection of gear 46.Support tube 103, in the general cylindrical shape extended in the lateral direction, runs through the radial central authorities substantially of back up pad 95 in the lateral direction.Support tube 103 is embedded in the detection of gear back shaft 93 of toner lid 47 outward from footpath.

Gear part 96 in extending to the right from the right surface of back up pad 95, the partial cylinder shape of its radial open-ended.Gear part 96 has teeth portion 96A and toothless portion) 96B.

Teeth portion 96A is configured in the half cycle in the apparent time counter clockwise direction downstream, left side of gear part 96.Teeth portion 96A has gear teeth.

Toothless portion) 96B counterclockwise configures continuously upstream with the left side apparent time of teeth portion 96A in the half cycle of the apparent time counter clockwise direction upstream, left side of gear part 96.Toothless portion) 96B does not have gear teeth.

Test section 97 is configured in the circumference of back up pad 95.When projecting in the lateral direction, test section 97 overlaps with the left side apparent time counter clockwise direction upstream end thereof of teeth portion 96A.Test section 97 is general curved tabular that is outstanding, that extend along the circumference of back up pad 95 to the left in the left surface from back up pad 95.

Sliding part 98 is cardinal principle tabular that is outstanding, that extend along the radial direction of back up pad 95 to the right in the right surface from back up pad 95.The right part of sliding part 98 is configured between the first dip plane 94A of toner lid 47 and the first retainer 99.

At the circumference of back up pad 95, projection 90 is configured in the left side apparent time counterclockwise upstream of test section 97 across compartment of terrain.

(2-3) gear cap

As shown in Fig. 3 and Fig. 5 A, gear cap 34 has the first lid 61 and the second lid 62.

First lid 61 is configured in the rearward end of drive division 30.First lid 61 is in the cardinal principle prism tubular extended in the lateral direction, left part is closed.First lid 61 covers development connection 41, developing gear 42 and supply gear 43.First lid 61 has the connection collar 63 and developer roll axle sleeve ring 64.

The connection collar 63 is configured in the central authorities of the first lid 61.The connection collar 63 is in the general cylindrical shape extended in the lateral direction.The connection collar 63 is embedded in the attachment 52 of development connection 41.

Developer roll axle sleeve ring 64 is configured in the back lower place of the connection collar 63.Developer roll axle sleeve ring 64 is embedded in the left part of development roll shaft 2A.

Second lid 62 is configured in the front of the first lid 61.Second lid 62 covers idle pulley 44, stirrer gear 45 and detection of gear 46.The second lid 62 as an example of covering member has base portion 60 and accommodation section 65.

Base portion 60 is in the cardinal principle prism tubular extended in the lateral direction, left part is closed.

As shown in Figures 4 and 8, accommodation section 65 is configured in the leading section of the second lid 62.Accommodation section 65 is in the general cylindrical shape extended to the left from the left surface of base portion 60, left part is closed.The right part of accommodation section 65 is communicated in the leading section of base portion 60.Accommodation section 65 holds back up pad 95 and the test section 97 of detection of gear 46.Accommodation section 65 have expose 67, supporting projections 68, fixture inserting hole 66 and fixed part 69.

Expose mouth 67 in the mode of the circumference of the left wall along accommodation section 65, cardinal principle C-shaped during the side-looking opened in bottom.Expose the left wall that mouth 67 runs through accommodation section 65 in the lateral direction.Expose the test section 97 that mouth 67 holds detection of gear 46 therein.

Radial mediad right extend, right part close the cardinal principle of supporting projections 68 in the left wall from accommodation section 65 is cylindric.While in the support tube 103 that supporting projections 68 is embedded in detection of gear 46, coordinate in the left part of its right part with the detection of gear back shaft 93 of toner lid 47.

Fixture inserting hole 66 is configured in the right part of the leading section of the second lid 62.General rectangular when fixture inserting hole 66 is seen in front, runs through the antetheca of the second lid 62 in the longitudinal direction.

As shown in Fig. 4 and Figure 13, in the bottom of accommodation section 65, fixed part 69 is configured in the left side apparent time counterclockwise between both ends exposing mouth 67.Fixed part 69 is in the cardinal principle tubular extended to the right from the left wall of accommodation section 65.

5, the structure of apparatus body

As shown in Figure 14 A, apparatus body 12 has optical sensor 81, actuator 82 and control part 83.Optical sensor 81 and actuator 82 form pick-up unit.

Optical sensor 81 is positioned at the upper left side of Delevoping cartridge 1, is configured in apparatus body 12.Optical sensor 81 has mutual to the light-emitting component faced by compartment of terrain and light receiving element in the vertical direction.Light-emitting component always sends detection light to light receiving element.Light receiving element receives the detection light sent from light-emitting component.Optical sensor 81 sends light receiving signal when light receiving element receives and detects light, does not send light receiving signal when light receiving element does not receive and detects light.Optical sensor 81 is electrically connected with control part 83.

Actuator 82 is configured in the back lower place of optical sensor 81.Actuator 82 can block optical sensor 81 detection light non-detection position (with reference to Figure 14 A) and do not block optical sensor 81 detection light detection position (with reference to Figure 15 A) between rotation.Actuator 82 is always exerted a force to non-detection position by not shown force application component.Actuator 82 has support portion 84, abutting part 85 and light shielding part 86.

Support portion 84 is configured in the fore-and-aft direction central authorities substantially of actuator 82.Support portion 84 is in substantially circular.Support portion 84 is rotatably embedded in the axle 87 in apparatus body 12.

Abutting part 85 extends from the posterior end portion of support portion 84 to the back lower place.Tabular substantially fan-shaped when abutting part 85 is the side-looking of about 90 °, central angle.Abutting part 85 wherein heart angle part and support portion 84 continuous.

Light shielding part 86 extends from the front upper end forward upward of support portion 84.The tabular of general rectangular when light shielding part 86 is in side-looking.

Control part 83 has circuit board, and this circuit board has ASIC (integrated circuit towards special-purpose), and control part 83 is configured in apparatus body 12.

6, the assembling of Delevoping cartridge

When assembling Delevoping cartridge 1, developer roll 2, donor rollers 3, thickness margining tablet 4 and stirrer 6 are first arranged on development framework 31 by operator.

Then, under the state above being configured in the left part of development framework 31, operator fills mouth 40 by toner and is filled in toner accommodating part 5 by toner, afterwards, closes toner fill mouth 40 with toner lid 47.That is, in the assembling of Delevoping cartridge, above-below direction is an example of first direction and installation direction.

As shown in Fig. 9 A and Figure 10, fill mouth 40 to toner lid 47 is embedded in toner, insertion section 92 is first configured in below by operator, is configured in the top in a portion 48.

Now, the point of crossing C between the dummy line L coordinating the outer peripheral face S of fixed part 92B head end and the outer peripheral face of closure 92A to extend in the lateral direction, contacts with the inner peripheral of the upper end in cylinder portion 48.

In such a state, auxiliary section 101, the head end of guide hump 49 to be inserted into the mode in inserting hole 101A, is coupled to guide hump 49 by operator.Thus, the position of filling toner lid 47 circumference of mouth 40 relative to toner is determined.

Then, toner lid 47 exerts a force downwards by operator, is inserted into insertion section 92 in a portion 48 and toner filling mouth 40.Now, in auxiliary section 101 under the state that guide hump 49 is directed, cooperation fixed part 92B inside side's elastic deformation to its footpath of insertion section 92, fills in mouth 40 while enter into toner.

Operator is pressed into toner lid 47 downwards, until when the lower surface of the closure 91 of toner lid 47 contacts with the upper edge in cylinder portion 48, the cooperation fixed part 92B of insertion section 92 fills mouth 40 by toner, is positioned at and locates more on the lower than sidewall 35.

So as shown in Figure 8, the cooperation fixed part 92B radius vector of insertion section 92 is restored outward.So, coordinate its radially outer end of fixed part 92B to fill side in the circumference of mouth 40 towards toner in sidewall 35.

Thus, as shown in Figure 9 B, toner lid 47 is embedded into toner and fills mouth 40, and toner is filled the closed of mouth 40 and completed.

Afterwards, after gear train 33 and detection of gear 46 being assembled in the above described manner, gear cap 34 is installed.

Thus, the assembling of Delevoping cartridge 1 completes.

7, the driving inspection of Delevoping cartridge

After the assembling of Delevoping cartridge 1 completes, operator carries out the driving inspection of Delevoping cartridge 1.

In order to carry out the driving inspection of Delevoping cartridge 1, as shown in Figure 12 A and Figure 12 B, operator first moves detection of gear 46 to the left with fixture 71, does not abut to make interference ribs 45C with the toothless portion) 96B of detection of gear 46.Position shown in Fig. 5 B, particularly, the position be configured between the first dip plane 94A of toner lid 47 and the first retainer 99, right part of sliding part 98 is an example of primary importance.

Particularly, as shown in figure 11, the cardinal principle that bends to the left in head end of fixture 71 is shaft-like.Fixture 71 has grip part 72 and force section 73.

Grip part 72 is in the tabular of general rectangular when overlooking.

Force section 73 is shaft-like in cardinal principle outstanding while tilting to the left from the head end of grip part 72.

As shown in Figure 12 A and Figure 12 B, in order to move detection of gear 46 to the left, the force section 73 of fixture 71 is inserted into the fixture inserting hole 66 of the second lid 62 by operator, exerts a force towards left with force section 73 to the gear part 96 of detection of gear 46.

So detection of gear 46 is resisted Compress Spring 102 applied force and moves to the left, until the position that interference ribs 45C does not abut with the left side apparent time counter clockwise direction upstream end thereof 96C of the toothless portion) 96B of detection of gear 46.

So as shown in figure 13, the projection 90 of detection of gear 46 is embedded in the fixed part 69 of the second lid 62, and the position of detection of gear 46 in sense of rotation is fixed.The position of detection of gear 46 is now examples for the second place.

Then, operator under the state of having moved detection of gear 46, to development connection 41 input queued switches power.

So as shown in Figure 5 B, development connection 41 to the left apparent time clockwise direction rotates.

So developing gear 42, supply gear 43 and idle pulley 44 to the left apparent time counterclockwise rotate.Thus, developer roll 2 and donor rollers 3 apparent time counterclockwise rotation to the left.

When idle pulley 44 rotates, stirrer gear 45 to the left apparent time clockwise direction rotates.Thus, stirrer 6 apparent time clockwise direction rotation to the left.

Operator, after confirmation developer roll 2, donor rollers 3 and stirrer 6 rotate, takes out fixture 71 from fixture inserting hole 66.

So detection of gear 46 moves to the right due to Compress Spring 102 applied force, gets back to primary importance.

Thus, the driving of Delevoping cartridge 1 has checked.

8, new product detects operation

Delevoping cartridge 1 is arranged on apparatus body 12 with the state being arranged on bulging box 20.

When the bulging box 20 i.e. handle box 13 being provided with Delevoping cartridge 1 is arranged on apparatus body 12, when protecgulum 17 is closed, with the shutoff operation of protecgulum 17 linkedly, the not shown body connection in apparatus body 12 can not be embedded in development connection 41 with the relative rotation.

Afterwards, control part 83 starts the warm-up operation of image forming apparatus 11.

So by the connection of not shown body from apparatus body 12 to development connection 41 input queued switches power, as mentioned above, developer roll 2, donor rollers 3 and stirrer 6 rotate.

As shown in Figure 14 A, when stirrer gear 45 rotates, interference ribs 45C is along with the rotation of stirrer gear 45, abut, towards front lower place to the left side apparent time of toothless portion) 96B counterclockwise upstream end thereof 96C force with the left side apparent time counter clockwise direction upstream end thereof 96C of the toothless portion) 96B of detection of gear 46.

Thus, detection of gear 46, engages with the leading section of the second gear part 45B of stirrer gear 45 for rotation apparent time counterclockwise rotation to the left with its central axis A as shown in Figure 14B, in the gear teeth in left side apparent time counter clockwise direction downstream.

So driving force is delivered to detection of gear 46 from stirrer gear 45, detection of gear 46 to the left apparent time counterclockwise rotates.

So, as shown in Figure 16 A and Figure 16 B, by sliding part 98 apparent time counterclockwise slip to the left on the first dip plane 94A of the guiding rib 94 of toner lid 47, detection of gear 46 is resisted Compress Spring 102 (with reference to Fig. 6) applied force and advances to the left.Under the state that sliding part 98 abuts with parallel surface 94B, detection of gear 46 proceeds to leftmost.

As shown in fig. 15, under the state that detection of gear 46 proceeds to leftmost, test section 97, along with the rotation apparent time counterclockwise movement to the left of stirrer gear 45, abuts with the abutting part 85 of actuator 82 from front, exerts a force towards the rear to abutting part 85.

Thus, actuator 82, from non-detection position apparent time clockwise direction swing to the left, moves to detection position.

So light shielding part 86 to the left apparent time clockwise direction moves, keep out of the way between the light-emitting component and light receiving element of optical sensor 81.

So the light receiving element of optical sensor 81 receives detection light, and optical sensor 81 exports light receiving signal.

At this, control part 83, by receiving the light receiving signal sent from optical sensor 81 after warm-up operation starts within the predetermined time, judges that untapped Delevoping cartridge 1 has been installed to apparatus body 12.

When detection of gear 46 further rotates, test section 97 leaves from abutting part 85.So actuator 82 swings from detection position to non-detection position.

Thus, the light shielding part 86 of actuator 82 is between the light-emitting component and light receiving element of optical sensor 81.

So the light receiving element of optical sensor 81 does not receive detection light, optical sensor 81 stops exporting light receiving signal.

When detection of gear 46 further rotates, detection of gear 46 is kept out of the way to the right due to Compress Spring 102 (with reference to Fig. 6) applied force.Now, sliding part 98 is apparent time counterclockwise slip to the left on the second dip plane 94C of the guiding rib 94 of toner lid 47, is embedded between the second retainer 100 and the second dip plane 94C.Thus, limit detection of gear 46 to further rotate.

As shown in fig. 15b, the engagement of the gear part 96 of detection of gear 46 and the second gear part 45B of stirrer gear 45 is removed, and the rotation of detection of gear 46 stops.

Afterwards, after a predetermined time, control part 83 stops warm-up operation.

When control part 83 does not receive the light receiving signal sent from optical sensor 81 in the given time after warm-up operation starts, be judged as that Delevoping cartridge 1 that is used or that using has been installed to apparatus body 12.

8, beneficial effect

(1) as shown in Fig. 9 A and Figure 10, according to this Delevoping cartridge 1, the bottom of insertion section 92, when toner lid 47 being installed to toner and filling mouth 40, is first configured in the periphery that mouth 40 filled by toner by operator.

Now, the part that the inner peripheral of filling mouth 40 with toner when projecting in the lateral direction in insertion section 92 overlaps is positioned at fills mouth 40 place closer to the top than toner.

Herein, because the part coordinated with auxiliary section 101 in guide hump 49 is that distance D2 is longer than D1, therefore when the bottom of insertion section 92 is configured to the edge of toner filling mouth 40 by operator, auxiliary section 101 can be made to coordinate with the head end of guide hump 49, wherein, D2 is the distance of upper edge to the above-below direction of the head end edge E1 of guide hump 49 in the portion of conforming to the principle of simplicity 48, the distance of the above-below direction of the part overlapped with the inner peripheral that mouth 40 filled by toner when D1 is and projects in the vertical direction in insertion section 92.

Thus, operator when the bottom of insertion section 92 being configured in toner and filling the edge of mouth 40, can determine that toner lid 47 fills the sense of rotation position of mouth 40 relative to toner.

Afterwards, under the state that operator can determine relative to the sense of rotation position that mouth 40 filled by toner at toner lid 47, insertion section 92 is inserted toner and fill in mouth 40.

Its result, toner lid 47 successfully can be arranged on toner and fill mouth 40 by operator.

(2) as shown in Figure 8, according to this Delevoping cartridge 1, toner lid 47 supports detection of gear 46.

Therefore, without the need to separately establishing the component for supporting detection of gear 46, toner lid 47 can be utilized to support detection of gear 46.

Its result, can make the structure of Delevoping cartridge 1 become simple.

(3) as shown in Figure 16 A and Figure 16 B, according to this Delevoping cartridge 1, detection of gear 46 rotates along with to sense of rotation, advances in the left that is tilted to along the first dip plane 94A of the guiding rib 94 of toner lid 47.

Therefore, detection of gear 46 can be made to advance to the left while rotation.

Its result, when detection of gear 46 rotates, can make the actuator 82 of apparatus body 12 easily abut with detection of gear 46.

(4) as shown in Figure 6, according to this Delevoping cartridge 1, toner lid 47 has second retainer 100 at the second 94C rear, dip plane being configured in guiding rib 94.

Therefore, the undesirable rotation of restriction detection of gear 46 after rotation set time can be guaranteed by the second retainer 100.

Second retainer 100, in the mode of the rotational trajectory along stirrer gear 45, is configured in stirrer gear 45 around expeditiously.

Therefore, while guaranteeing that restriction detection of gear 46 carries out undesirable rotation, the miniaturization of Delevoping cartridge 1 can be realized.

(5) as shown in Figure 3, according to this Delevoping cartridge 1, the bottom of auxiliary section 101 is exposed from the bottom of the second lid 62.

Therefore, while guaranteeing to cover detection of gear 46, the cooperation of auxiliary section 101 relative to guide hump 49 can easily be confirmed.

(6) as shown in Figure 12 B and Figure 13, according to this Delevoping cartridge 1, can, before detection of gear 46 receives the driving force from apparatus body 12, the second lid 62 be utilized to make the position of detection of gear 46 be fixed on the second place that can not receive driving force.

Therefore, before detection of gear 46 receives the driving force from apparatus body 12, make detection of gear 46 be positioned at the second place, make the driving force from apparatus body 12 be input to Delevoping cartridge 1, do not make detection of gear 46 rotate, carry out the driving inspection of Delevoping cartridge 1.

(7) as shown in Figure 9 A, according to this Delevoping cartridge 1, guide hump 49 is inserted into the inserting hole 101A of auxiliary section 101.

Therefore, auxiliary section 101 can be coordinated with guide hump 49 by simple structure.

(8) as shown in Figure 8, according to this Delevoping cartridge 1, the dimension D 3 of the left and right directions of insertion section 92 is twices of the distance D4 of left and right directions.Wherein, D4 is the distance of left end edge to the left and right directions on the right surface of left sidewall 35 in the portion of conforming to the principle of simplicity 48.

Therefore, insertion section 92 can be made stably to guarantee, and being embedded in toner fills mouth 40.

(9) as shown in Fig. 9 A and Fig. 9 B, according to this Delevoping cartridge 1, insertion section 92, when toner lid 47 being arranged on toner and filling mouth 40, while available guide hump 49 guides auxiliary section 101, is inserted toner and is filled in mouth 40 by operator.

Its result, toner lid 47 successfully can be installed to toner and fill mouth 40 by operator.

9, variation

(1) in the above-described embodiment, as an example of developer box, list the Delevoping cartridge 1 with developer roll 2 and donor rollers 3, but as developer box, such as, can enumerate the toner Cartridge without developer roll 2 and donor rollers 3.As developer box, such as, can enumerate the handle box integratedly with developing cell and drum unit.Wherein, developing cell has developer roll 2 and donor rollers 3, and drum unit has photosensitive drums 21.

(2) in the above-described embodiment, auxiliary section 101 is formed as the tabular with thickness, but auxiliary section 101 such as can be formed as flake.

(3) in the above-described embodiment, detection of gear 46 has teeth portion 96A, and wherein, teeth portion 96A has gear teeth.But, such as, can the friction member be made up of banded rubber etc. be set, receives driving force, to replace gear teeth by the friction of friction member.

(4) in the above-described embodiment, guide hump 49 is arranged on left sidewall 35 integratedly, but guide hump 49 can be configured to the component different from left sidewall 35, is fixed on left sidewall 35.

(5) in the above-described embodiment, test section 97 is configured to the bending tabular extended in the sense of rotation of detection of gear 46, but test section 97 also can be configured to the projection of the tabular extended in the lateral direction.

(6) in the above-described embodiment, available development sleeve or brush roll replace developer roll 2.

(7) in the above-described embodiment, gear cap 34 has the first lid 61 and the second lid 62 respectively, but gear cap 34 can have the first lid 61 and the second lid 62 integratedly.

(8) in the above-described embodiment, auxiliary section 101 has the inserting hole 101A of the circle of inserting guide hump 49, but auxiliary section 101 can have the semicircular recess of cardinal principle along the side face of guide hump 49.In this case, guide hump 49 is embedded in recess.

description of reference numerals

1 Delevoping cartridge

6 stirrers

Mouth filled by 40 toners

45 stirrer gears

46 detection of gear

47 toner lids

48 portions

48A left end edge

49 guide humps

62 second lids

69 fixed parts

81 optical sensors

82 actuators

92 insertion sections

94A first dip plane

100 second retainers

101 auxiliary sections

101A inserting hole

A central axis

D1 distance

D2 distance

D3 left and right directions size

D4 left and right directions distance

E1 head end edge

E2 right-hand member edge

Claims (11)

1. a developer box, is characterized in that, comprising:

Housing, described housing has fills mouth and teat, and described filling mouth runs through described housing in a first direction, and be configured to allow developer to pass through, described teat is adjacent with described filling mouth, gives prominence to along described first direction; And

Closure member, described closure member has fitting portion and auxiliary section, and described fitting portion extends in said first direction, be embedded in described filling mouth, described auxiliary section extends on the direction vertical with described first direction, matches with described teat, described closure member is used for closing described filling mouth

Distance from the part matched with described auxiliary section of described teat to the head end of described teat is the first distance, the part distance in said first direction coincided with the periphery of described filling mouth viewed from described first direction of described fitting portion is second distance, and described first distance is longer than described second distance.

2. developer box according to claim 1, is characterized in that, also comprises rotary body, and described rotary body is configured to accept the driving force from outside, thus rotates about the rotation along described first direction,

Described closure member supports described rotary body.

3. developer box according to claim 2, is characterized in that, described rotary body is detected body, and described detected body is configured to be detected by the pick-up unit of outside.

4. the developer box according to Claims 2 or 3, is characterized in that, described closure member has rake, and described rake tilts to described first direction foreign side along with the sense of rotation to described rotary body,

The described first direction foreign side that is tilted to that described rotary body is configured to along with rotating to described sense of rotation along described rake advances.

5. developer box according to claim 2, is characterized in that, also comprises:

Agitating member, is configured to stir the developer in described housing; And

Stir gear, be fixed on the end of described agitating member, be configured to described agitating member is rotated,

Described rotary body is configured in the driving force accepted from outside thus stops after have rotated the schedule time,

Described closure member has limiting unit, and described limiting unit is configured to limit the described rotary body that have rotated the described schedule time and continues mobile,

Described limiting unit is configured to adjacent with described stirring gear along the rotational trajectory of described stirring gear.

6. developer box according to claim 2, is characterized in that, also comprises covering member, and described covering member covers described rotary body at least partially,

Described auxiliary section is exposed from described covering member.

7. developer box according to claim 6, it is characterized in that, can move between the first position and the second position under the state of described rotary body before accepting from the driving force of outside, described primary importance is the position that can accept described driving force, the described second place is the position that can not accept described driving force

Described covering member has fixed part, and described fixed part is configured to the position of the described rotary body being fixed in the described second place.

8. developer box according to claim 1, is characterized in that, described auxiliary section has through hole, and described through hole runs through described auxiliary section in said first direction,

Described teat is configured to insert described through hole.

9. developer box according to claim 1, is characterized in that, described housing has a portion, and described cylinder portion gives prominence in said first direction from the periphery of described filling mouth,

Described fitting portion size is in said first direction 1.5 ~ 3 times of the inside surface distance in said first direction from the described first direction ora terminalis in described cylinder portion to described housing.

10. developer box according to claim 1, is characterized in that, described first distance is the distance from the face facing with described housing of described auxiliary section to the head end of described teat.

11. 1 kinds of developer boxes, is characterized in that, comprising:

Housing, described housing has filling mouth, and described filling mouth is configured to allow developer to pass through, and described housing is configured at inner receiving photographic developer; And

Closure member, described closure member carrys out closed described filling mouth by being installed to described filling mouth towards installation direction,

Described closure member has auxiliary section, and described auxiliary section extends on the direction vertical with described installation direction,

Described housing has teat, and described teat is given prominence to along described installation direction, is configured to guide described auxiliary section along described installation direction.