JP2014106392A5

JP2014106392A5 -

Info

Publication number: JP2014106392A5
Application number: JP2012259492A
Authority: JP
Filing date: 2012-11-28
Publication date: 2016-01-21
Anticipated expiration: 2032-11-28

Description

上記の目的を達成するための本発明に係る画像形成装置の代表的な構成は、記録媒体に画像を形成する為のカートリッジを着脱可能な画像形成装置であって、前記画像形成装置の装置本体に設けられた開口と、前記開口を閉じる閉じ位置と前記開口を開放する開放位置とを取り得る本体ドアと、前記カートリッジを載置するためのトレイであって、前記本体ドアを前記閉じ位置に位置させた際に、前記装置本体の内部において前記カートリッジを画像形成動作可能な位置に位置させる画像形成位置と、前記本体ドアを前記開放位置に位置させた際に、前記装置本体の外部において前記カートリッジを着脱可能にするための着脱位置と、前記着脱位置から前記画像形成位置への移動経路の途中に位置しており、前記本体ドアを前記開放位置から前記閉じ位置へ移動するのに連動して前記画像形成位置へ移動することが可能な移動可能位置と、を取り得るトレイと、前記トレイを移動可能に支持し、前記本体ドアの移動と連動する支持部材と、前記本体ドアが前記閉じ位置に位置する際に、前記カートリッジに駆動力を伝達し得る連結位置と、前記本体ドアが前記開放位置に位置する際に、前記カートリッジから離間する第一の離間位置と、を取り得る駆動伝達部材と、前記本体ドアが前記閉じ位置に位置する際に、前記カートリッジに押圧して前記装置本体に位置決めする当接位置と、前記本体ドアが前記開放位置に位置する際に、前記カートリッジから離間する第二の離間位置と、を取り得る押圧部材と、前記本体ドアが前記閉じ位置に位置する際に、前記カートリッジの給電接点部に対して給電し得る給電位置と、前記本体ドアが前記開放位置に位置する際に、前記カートリッジの給電接点部から離間する第三の離間位置と、を取り得る給電部材と、を有し、前記本体ドアが前記開放位置から前記閉じ位置へ移動するのに連動して、前記トレイが前記移動可能位置から前記画像形成位置へ移動する動作、前記駆動伝達部材が前記第一の離間位置から前記連結位置に移動する動作、前記押圧部材が前記第二の離間位置から前記当接位置に移動する動作、前記給電部材が前記第三の離間位置から前記給電位置に移動する動作の順に行われることを特徴とする。 Typical configuration of an image forming apparatus according to the present invention for achieving the above object, there is provided an image forming apparatus capable of attaching and detaching the cartridge for forming an image on a recording medium, the apparatus body of the image forming apparatus A main body door capable of taking a closed position for closing the opening and an open position for opening the opening, and a tray for placing the cartridge, wherein the main body door is set to the closed position. when was positioned, the inside of the apparatus main body and the image forming position to position the cartridge in the image forming operable position, when the main body door was located at the open position, the outside of the device body and wearing-off position for the cartridge removably located in the middle of the movement path to the image forming position from the detachable position, the main body door from the open position A movable position that can in conjunction with the you move to the serial closed position moves to the image forming position, the tray can take, and movably supports the tray, moving the front Stories body door A support member that interlocks with the main body, a connection position where the driving force can be transmitted to the cartridge when the main body door is located at the closed position, and a separation position from the cartridge when the main body door is located at the open position. A drive transmission member capable of taking a first separation position, a contact position that presses against the cartridge and positions the device body when the body door is located at the closed position, and the body door includes: when positioned in the open position, and a second spaced position away from the cartridge, a pressing member capable of having a, in the main door is positioned in said closed position, feed contact of said cartridge Has a feed point which may be powered, when the main body door is positioned at the open position, and a third spaced position away from the feed contact portion of the cartridge, a feeding member which can take a relative, The operation of moving the tray from the movable position to the image forming position in conjunction with the movement of the main body door from the open position to the closed position, and the drive transmitting member from the first separated position operation of moving the connecting position, the pressing member is performed in the order of operation the operation of moving the contact position from the second spaced position, wherein said feeding member is moved to the feed position from said third separated position It is characterized by that.

上記のカートリッジＰにおいて、カップリング嵌合部５３、５４を具備させた右側面部が駆動側であり、その反対側の電気接点５５を配設してある左側面部が非駆動側である。即ち、カートリッジＰは、トレイ３５に載置された状態において、トレイ３５の着脱位置Ｅと移動可能位置Ｄとの間の移動方向に対してトレイ移動面において直交方向（カートリッジの長手方向）の一端側（右側）に駆動連結部５３、５４を有する。そして、他端側（左側）に給電接点部５５を有している。 In the cartridge P described above, the right side surface provided with the coupling fitting portions 53 and 54 is the driving side, and the left side surface on which the electrical contact 55 on the opposite side is disposed is the non-driving side. That is, in the state where the cartridge P is placed on the tray 35, one end of the tray moving surface orthogonal to the moving direction between the attaching / detaching position E and the movable position D of the tray 35 (the longitudinal direction of the cartridge) . Drive coupling portions 53 and 54 are provided on the side (right side). And it has the electric power feeding contact part 55 in the other end side (left side).

即ち、本体電気接点ばね７５は、ドア３１が開放位置Ｂに位置する際に、カートリッジＰの電気接点５５から離間する離間位置Ｋ（第三の離間位置）に位置して、本体電気接点ばね７５とカートリッジＰの電気接点５５は電気的に切断された状態になる。 That is, the main body electrical contact spring 75 is located at a separation position K (third separation position) that is separated from the electrical contact 55 of the cartridge P when the door 31 is located at the open position B. And the electrical contact 55 of the cartridge P is in an electrically disconnected state.

即ち、押圧部材４２は、ドア３１が開放位置Ｂに位置する際に、カートリッジＰから離間する離間位置Ｉ（第二の離間位置）に位置する。これにより、ドア３１の開き回動に連動して、各カートリッジＰへの左右の押圧が解除されることになる。 That is, the pressing member 42 is located at the separation position I (second separation position) that separates from the cartridge P when the door 31 is located at the open position B. As a result, the left and right pressing on each cartridge P is released in conjunction with the opening rotation of the door 31.

これにより、ドラム駆動カップリング解除カム２１２の端面２１２ｆが、ドラム駆動カップリング３９に当接し、カップリング押圧バネ２１１の付勢力に抗して、ドラム駆動カップリング３９をカートリッジ側の駆動入力部５３から離間する方向に移動させる。即ち、ドラム駆動カップリング３９は、ドア３１が開放位置Ｂに位置する際に、カートリッジＰから離間する離間位置Ｇ（第一の離間位置）に位置している。 Thereby, the end surface 212f of the drum drive coupling release cam 212 abuts on the drum drive coupling 39, and the drum drive coupling 39 is moved against the biasing force of the coupling pressing spring 211 to drive the cartridge side drive input portion 53. Move away from the direction. That is, the drum drive coupling 39 is located at the separation position G (first separation position) that separates from the cartridge P when the door 31 is located at the open position B.

１００・・画像形成装置、１００Ａ・・装置本体、Ｐ（ＰＹ、ＰＭ、ＰＣ、ＰＫ）・・カートリッジ、Ｓ・・記録媒体、３０・・開口、３１・・本体ドア、Ａ・・閉じ位置、Ｂ・・開放位置、３５・・トレイ、Ｃ・・画像形成位置（収納位置）、Ｄ・・移動可能位置、Ｅ・・着脱位置、５３・５４・・カートリッジ側の駆動連結部、３９・４０・・装置本体側の駆動伝達部材、Ｆ・・連結位置、Ｇ・・第一の離間位置、４２・・押圧部材、Ｈ・・当接位置、Ｉ・・第二の離間位置、５５・・カートリッジ側の給電接点部、７５・・装置本体側の給電部材、Ｊ・・給電位置、Ｋ・・第三の離間位置 100..Image forming apparatus, 100A..Main body, P (PY, PM, PC, PK) .. Cartridge, S..Recording medium, 30..Opening, 31..Main body door, A..Closed position, B ... Open position, 35 ... Tray, C ... Image forming position (storage position), D ... Moveable position, E ... Removable position, 53.54 ... Drive connection on cartridge side, 39.40 · the apparatus main body side of the drive transmission member, F ... connecting position, G ... first separated position, 42 ... pressing member, H ... contact position, I ... second spaced position, 55 ... Feeding contact on cartridge side, 75 .. Feeding member on main unit side, J ... Feeding position, K ... Third separation position

Claims

An image forming apparatus capable of attaching and detaching the cartridge for forming an image on a recording medium,
An opening provided in an apparatus main body of the image forming apparatus ;
A body door capable of taking a closed position for closing the opening and an open position for opening the opening;
A tray for mounting the cartridge, the body door upon is positioned in said closed position, and an image forming position to position on the image forming operation capable of positioning the cartridge in the interior of the apparatus main body, when the positions the said body door to the open position, the position in the middle of the movement path of the wearing-off position for detachable said cartridge outside of the apparatus main body, from the detaching position to the image forming position and has a movable position capable of moving said interlocked body door for you move to the closed position from the open position to the image forming position, the tray can take,
A support member movably supports the tray, in conjunction with the movement of the front Stories body door,
When the main body door is positioned in said closed position, and a coupling position capable of transmitting a driving force to said cartridge, when said body door is positioned at the open position, a first spaced position away from the cartridge A drive transmission member capable of taking
When the main body door is positioned at the closed position, a contact position that presses against the cartridge to position the main body of the apparatus, and when the main body door is positioned at the open position, the second position is separated from the cartridge . And a pressing member capable of taking the separated position;
When the main body door is in the closed position, the power supply position can supply power to the power supply contact portion of the cartridge, and when the main body door is in the open position, the power supply contact portion of the cartridge is separated A third separating position, and a power supply member capable of taking,
The operation of moving the tray from the movable position to the image forming position in conjunction with the movement of the main body door from the open position to the closed position, and the drive transmitting member from the first separated position operation of moving the connecting position, the pressing member is performed in the order of operation the operation of moving the contact position from the second spaced position, wherein said feeding member is moved to the feed position from said third separated position An image forming apparatus.

The power supply member moves from the power supply position to the third separated position in conjunction with the main body door moving from the closed position to the open position, and the pressing member is moved from the contact position to the first position . operation of moving in two spaced positions, is performed in the order of operation operation the drive transmission member is moved to said first spaced position from said connecting position, in which the tray is moved to the movable position from the image forming position The image forming apparatus according to claim 1.

The cartridge includes an image carrier on which a latent image is formed, and the apparatus main body includes a transfer unit that contacts the image carrier and transfers a developer image formed on the image carrier. the image forming position of the tray the image forming apparatus according to claim 1 or 2, wherein the transfer unit and the image bearing member is position in contact.

4. The transfer unit according to claim 3, further comprising an intermediate transfer member for transferring the developer image formed on the image carrier and transferring the transferred developer image to the recording medium. Image forming apparatus.

4. The recording unit according to claim 3, wherein the transfer unit includes a recording medium conveying member that conveys the recording medium in order to directly transfer the developer image formed on the image carrier to the recording medium. Image forming apparatus.

6. The image forming apparatus according to claim 3, wherein the image carrier is an electrophotographic photosensitive member.

Movement direction between the detachable position and the movable position of the tray, any one of claims 1 to 6, characterized in that a direction perpendicular to the longitudinal direction of the placed said cartridge to said tray The image forming apparatus according to one item.

The cartridge has a drive connecting portion to which a driving force is transmitted from the drive transmission member on one end side in the longitudinal direction of the cartridge, and has the power feeding contact portion on the other end side,
The apparatus main body has urging means for urging the drive transmission member with respect to the drive connecting portion when the main body door is located at the closed position.
In conjunction with the movement of the drive transmission member from the separated position to the connection position, the cartridge is moved by the biasing means from the side where the drive connection portion is provided to the side where the power supply contact portion is provided. the image forming apparatus according to any one of claims 1 to 7, characterized in that to.

Direction in which the pressing member presses the cartridge, the contact direction of the connection direction and the feeding member of the drive transmission member, in any one of claims 1 to 8, characterized in that a direction perpendicular The image forming apparatus described.

The image according to any one of claims 1 to 9, wherein the tray is capable of mounting a plurality of the cartridges side by side in a movement direction between the attachment / detachment position and the movable position. Forming equipment.

The tray is linearly movable in the horizontal direction, diagonally upward, or diagonally downward with respect to the installation surface of the apparatus main body between the attachment / detachment position and the movable position. Item 11. The image forming apparatus according to any one of Items 1 to 10 .

The tray, the at detaching position, can be supported taking out the cartridge upward, and any one of claims 1 to 11, characterized in that the support by moving the cartridge downward The image forming apparatus described in 1.

The cartridge according to claim 1 to 12, characterized in that a process cartridge comprising a developing means for developing a latent image formed image bearing member and the image carrier on which a latent image is formed with a developer The image forming apparatus according to claim 1.

The cartridge is a separation type process cartridge having an image carrier on which a latent image is formed and an image forming process means other than a developing means for developing the latent image formed on the image carrier with a developer. the image forming apparatus according to any one of claims 1 to 13, characterized in.

The cartridge includes a developing unit that develops the latent image formed on the image carrier on which the latent image is formed with a developer, and a developer storage unit that stores and stores the developer used to develop the latent image. the image forming apparatus according to any one of claims 1 to 14, characterized in that a developing cartridge having and.

The cartridge includes a separation type process cartridge including an image carrier on which a latent image is formed and an image forming process unit other than a developing unit that develops the latent image formed on the image carrier with a developer, and It is a combination of a developing cartridge having a developing means for developing a latent image formed on the image carrier with a developer and a developer containing portion containing a developer used for developing the latent image. the image forming apparatus according to any one of claims 1 to 15, characterized in that.