JP7031117B2 - Image forming device - Google Patents

Image forming device Download PDF

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JP7031117B2
JP7031117B2 JP2016206289A JP2016206289A JP7031117B2 JP 7031117 B2 JP7031117 B2 JP 7031117B2 JP 2016206289 A JP2016206289 A JP 2016206289A JP 2016206289 A JP2016206289 A JP 2016206289A JP 7031117 B2 JP7031117 B2 JP 7031117B2
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recording material
image
image forming
fixing
continuous paper
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JP2018066905A (en
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真文 柏原
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Fujifilm Business Innovation Corp
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Fuji Xerox Co Ltd
Fujifilm Business Innovation Corp
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Description

本発明は、画像形成装置に関する。 The present invention relates to an image forming apparatus.

従来における画像形成装置としては例えば特許文献１に記載のものがある。
特許文献１には、電子写真方式を用いるラベルプリンタにおいて、転写部と定着部との間に剥離紙と粘着媒体とからなる連続する媒体の搬送モジュールを配置し、媒体を適正量たるませながら搬送させることで、たるみの過不足によって生ずるジャムや転写不良を抑制する態様が開示されている。 As a conventional image forming apparatus, for example, there is one described in Patent Document 1.
In Patent Document 1, in a label printer using an electrophotographic method, a continuous medium transport module consisting of a release paper and an adhesive medium is arranged between a transfer portion and a fixing portion, and the medium is conveyed while being slackened in an appropriate amount. Disclosed is an embodiment of suppressing jams and transfer defects caused by excess or deficiency of sagging.

特許第５７１００５４号公報（発明を実施するための形態，図７）Japanese Patent No. 5710054 (Form for Carrying Out the Invention, FIG. 7)

ところで、連続する媒体（記録材）を作像中に、操作者が装置筐体の開閉扉を誤って開放するような場合には、安全対策としてインターロック機構が働き、画像形成装置による作像処理が緊急停止する方式が多く採用されている。この場合、連続する媒体（記録材）に対する作像処理が中断すると共に、連続する媒体の搬送が停止することから、連続する媒体（記録材）のうち、転写部と定着部との間に未定着画像が発生するケースが多い。 By the way, if the operator accidentally opens the opening / closing door of the device housing while creating a continuous medium (recording material), an interlock mechanism works as a safety measure, and the image forming device creates an image. Many methods are adopted in which processing is stopped urgently. In this case, since the image forming process for the continuous medium (recording material) is interrupted and the transport of the continuous medium is stopped, it is undecided between the transfer portion and the fixing portion of the continuous medium (recording material). There are many cases where landing images occur.

本発明が解決しようとする技術的課題は、連続する記録材に対して画像を作製する途中で記録材の搬送を停止したときに、未定着画像領域に起因する記録材の汚れを回避することにある。 A technical problem to be solved by the present invention is to avoid contamination of the recording material due to an unfixed image region when the transport of the recording material is stopped in the middle of producing an image for a continuous recording material. It is in.

請求項１に係る発明は、連続する記録材を搬送する搬送部と、前記記録材に画像を作製する作像部と、前記記録材上に作製された画像を定着する定着部と、前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、前記排除機構は、前記作像部と前記定着部との間に設けられ、前記記録材の搬送が作像途中で停止されたときに、前記記録材の搬送方向に交差する方向に向かって当該記録材を折り込む第１の折込み部材と、前記第１の折込み部材で折り込まれた記録材を前記記録材の搬送方向に向かって折り込む第２の折込み部材と、を有することを特徴とする画像形成装置である。 The invention according to claim 1 comprises a transport unit for transporting a continuous recording material, an image forming unit for producing an image on the recording material, a fixing unit for fixing an image produced on the recording material, and the recording. When the transfer of the material is stopped in the middle of image formation, the recording material portion in which the unfixed image before passing through the fixing portion is held is folded so that the image is inside and can be eliminated as a defective region. The exclusion mechanism is provided between the image forming portion and the fixing portion, and intersects in the conveying direction of the recording material when the transfer of the recording material is stopped in the middle of image forming. Having a first folding member that folds the recording material in the direction, and a second folding member that folds the recording material folded by the first folding member in the transport direction of the recording material. It is a characteristic image forming apparatus.

請求項２に係る発明は、連続する記録材を搬送する搬送部と、前記記録材に画像を作製する作像部と、前記記録材上に作製された画像を定着する定着部と、前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、前記排除機構は、折り込んだ記録材部分の少なくとも前記定着部側を接着する接着手段を有することを特徴とする画像形成装置である。
請求項３に係る発明は、請求項２に係る画像形成装置において、前記定着部は熱溶融性の作像材料による画像を加熱定着するものであり、前記接着手段は未定着画像の作像材料を前記定着部にて接着させるものであることを特徴とする画像形成装置である。
請求項４に係る発明は、請求項２に係る画像形成装置において、前記接着手段は針無綴じ具にて構成され、折り込んだ記録材部分の定着部側を針無綴じすることで接着することを特徴とする画像形成装置である。
請求項５に係る発明は、連続する記録材を搬送する搬送部と、前記記録材に画像を作製する作像部と、前記記録材上に作製された画像を定着する定着部と、前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、前記排除機構は折り込んだ記録材部分を前記定着部を通過させた後、回収した記録材から不良領域として排除することを特徴とする画像形成装置である。
請求項６に係る発明は、連続する記録材を搬送する搬送部と、前記記録材に画像を作製する作像部と、前記記録材上に作製された画像を定着する定着部と、前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を、前記画像が内側になり且つ前記記録材の搬送方向に沿うように折り込んで不良領域として排除可能とする排除機構と、を備えることを特徴とする画像形成装置である。 The invention according to claim 2 has a transport section for transporting a continuous recording material, an image forming section for creating an image on the recording material, a fixing section for fixing an image created on the recording material, and the recording. When the transfer of the material is stopped in the middle of image formation, the recording material portion in which the unfixed image before passing through the fixing portion is held is folded so that the image is inside and can be eliminated as a defective region. The exclusion mechanism is an image forming apparatus comprising: and an adhesive means for adhering at least the fixing portion side of the folded recording material portion.
According to the third aspect of the present invention, in the image forming apparatus according to the second aspect, the fixing portion heats and fixes an image made of a heat-meltable image-forming material, and the adhesive means is an image-forming material for an unfixed image. Is an image forming apparatus, characterized in that the image is adhered at the fixing portion.
The invention according to claim 4 is the image forming apparatus according to claim 2 , wherein the adhesive means is composed of a needle-free binding tool, and the fixed portion side of the folded recording material portion is bonded by needle-free binding. It is an image forming apparatus characterized by .
The invention according to claim 5 has a transport section for transporting a continuous recording material, an image forming section for creating an image on the recording material, a fixing section for fixing an image created on the recording material, and the recording. When the transfer of the material is stopped in the middle of image formation, the recording material portion in which the unfixed image before passing through the fixing portion is held is folded so that the image is inside and can be eliminated as a defective region. The exclusion mechanism is an image forming apparatus characterized by passing the folded recording material portion through the fixing portion and then removing the folded recording material portion from the collected recording material as a defective region .
The invention according to claim 6 has a transport section for transporting a continuous recording material, an image forming section for creating an image on the recording material, a fixing section for fixing an image created on the recording material, and the recording. When the transfer of the material is stopped in the middle of image formation, the recording material portion in which the unfixed image before passing through the fixing portion is retained is folded so that the image is on the inside and along the transport direction of the recording material. The image forming apparatus is provided with an exclusion mechanism that can be eliminated as a defective region.

請求項１に係る発明によれば、連続する記録材に対して画像を作製する途中で記録材の搬送を停止したときに、未定着画像領域に起因する記録材の汚れを回避することができるほか、未定着画像が保持された記録材を簡単にＺ折り状態に折り込むことができる。
請求項２に係る発明によれば、接着手段を有さない態様に比べて、折り込まれた記録材部分が定着部を通過する際に折り込み状態を保ち易くすることができる。
請求項３に係る発明によれば、排除機構による排除処理を施した記録材に関し、簡単な構成で定着部を安全に通過させることができる。
請求項４に係る発明によれば、排除機構による排除処理を施した記録材に関し、定着部を損傷させることなく、定着部を安全に通過させることができる。
請求項５に係る発明によれば、回収部に記録材の不良領域を含めて回収したとしても、未定着画像による記録材の汚れを有効に防止でき、かつ、記録材の不良領域を簡単に選別することができる。
請求項６に係る発明によれば、連続する記録材に対して画像を作製する途中で記録材の搬送を停止したときに、未定着画像領域に起因する記録材の汚れを回避することができ、記録材の搬送再開後の定着部への導入をスムーズにすることができる。 According to the first aspect of the present invention, when the transport of the recording material is stopped in the middle of producing an image for the continuous recording material, it is possible to avoid the contamination of the recording material due to the unfixed image region. In addition, the recording material holding the unfixed image can be easily folded into the Z-folded state.
According to the second aspect of the present invention, it is possible to make it easier to maintain the folded state when the folded recording material portion passes through the fixing portion, as compared with the embodiment having no adhesive means.
According to the third aspect of the present invention, the recording material subjected to the exclusion treatment by the exclusion mechanism can be safely passed through the fixing portion with a simple structure.
According to the invention of claim 4 , the recording material subjected to the exclusion treatment by the exclusion mechanism can safely pass through the fixing portion without damaging the fixing portion .
According to the invention of claim 5 , even if the recovery unit includes the defective region of the recording material, the recording material can be effectively prevented from being contaminated by the unfixed image, and the defective region of the recording material can be easily removed. Can be sorted .
According to the invention of claim 6 , when the transport of the recording material is stopped in the middle of producing an image for a continuous recording material, it is possible to avoid the contamination of the recording material due to the unfixed image region. , It is possible to smoothly introduce the recording material to the fixing part after resuming the transportation.

（ａ）は本発明が適用された画像形成装置の実施の形態の概要を示す説明図、（ｂ）（ｃ）は（ａ）に示す排除機構の動作過程を示す説明図である。(A) is an explanatory diagram showing an outline of an embodiment of an image forming apparatus to which the present invention is applied, and (b) and (c) are explanatory views showing an operation process of the exclusion mechanism shown in (a). 実施の形態１に係る画像形成装置の全体構成を示す説明図である。It is explanatory drawing which shows the whole structure of the image forming apparatus which concerns on Embodiment 1. FIG. 実施の形態１で用いられる排除機構周りの構成を示す説明図である。It is explanatory drawing which shows the structure around the exclusion mechanism used in Embodiment 1. FIG. 実施の形態１に係る画像形成装置の排除処理内容を示すフローチャートである。It is a flowchart which shows the exclusion process content of the image forming apparatus which concerns on Embodiment 1. FIG. （ａ）～（ｃ）は実施の形態１で用いられる排除機構による動作過程を模式的に示す説明図である。(A) to (c) are explanatory views schematically showing the operation process by the exclusion mechanism used in Embodiment 1. （ａ）（ｂ）は排除処理完了時における排除機構の動作例を示す説明図である。(A) and (b) are explanatory views which show the operation example of the exclusion mechanism at the time of completion of exclusion processing. （ａ）～（ｃ）は排除処理完了後における記録材の不良領域についての挙動を示す説明図である。(A) to (c) are explanatory views showing the behavior of the defective region of the recording material after the elimination process is completed. （ａ）（ｂ）は排除機構の変形の形態を示す説明図である。(A) and (b) are explanatory views showing the modified form of the exclusion mechanism. 実施の形態２に係る画像形成装置の排除機構周りの構成を示す説明図である。It is explanatory drawing which shows the structure around the exclusion mechanism of the image forming apparatus which concerns on Embodiment 2. FIG. （ａ）（ｂ）は排除処理完了時における排除機構の動作例を示す説明図である。(A) and (b) are explanatory views which show the operation example of the exclusion mechanism at the time of completion of exclusion processing. （ａ）（ｂ）は排除処理完了後における記録材の不良領域が定着部を通過する際の挙動を示す説明図、（ｃ）は排除処理完了後における記録材の不良領域を定着部前で除去することを示す説明図である。(A) (b) is an explanatory diagram showing the behavior when the defective region of the recording material passes through the fixing portion after the elimination treatment is completed, and (c) is the defective region of the recording material after the elimination treatment is completed in front of the fixing portion. It is explanatory drawing which shows that it removes. 実施の形態３に係る画像形成装置の排除機構周りの構成を示す説明図である。It is explanatory drawing which shows the structure around the exclusion mechanism of the image forming apparatus which concerns on Embodiment 3. FIG. （ａ）は実施の形態３で用いられる排除機構周りの平面説明図、（ｂ）～（ｄ）は同排除機構による動作過程を模式的に示す説明図である。(A) is a plan explanatory view around the exclusion mechanism used in the third embodiment, and (b) to (d) are explanatory views schematically showing the operation process by the exclusion mechanism.

◎実施の形態の概要
図１（ａ）は本発明が適用された画像形成装置の実施の形態の概要を示す。
同図において、画像形成装置は、連続する記録材Ｓを搬送する搬送部１と、記録材Ｓに画像を作製する作像部２と、記録材Ｓ上に作製された画像を定着する定着部３と、記録材Ｓの搬送が作像途中で停止されたときに、定着部３通過前の未定着画像が保持された記録材Ｓ部分を画像が内側になるように折り込んで不良領域として排除可能とする排除機構４と、を備える。 (1) Outline of the embodiment FIG. 1A shows an outline of the embodiment of the image forming apparatus to which the present invention is applied.
In the figure, the image forming apparatus includes a transport unit 1 that conveys a continuous recording material S, an image forming unit 2 that creates an image on the recording material S, and a fixing unit that fixes an image created on the recording material S. When the transfer of the recording material S and the recording material S is stopped in the middle of image formation, the recording material S portion where the unfixed image before passing through the fixing portion 3 is held is folded so that the image is inside and eliminated as a defective region. It is provided with an exclusion mechanism 4 that enables it.

このような技術的手段において、搬送部１は、連続する記録材Ｓを供給する供給部１ａ、作像・定着した記録材Ｓを回収する回収部１ｂ、作像部２、定着部３を通過させるように予め決められた経路を経て搬送する搬送部材（図示せず）を含む。また、作像部２は定着部３にて定着可能な未定着画像を作製するものであれば、電子写真方式が代表的であるが、これ以外の作像方式（静電記録方式など）をも広く含む。更に、定着部３は記録材Ｓに定着部材を接触させる接触方式に限られず、定着部材を非接触配置した非接触方式をも含み、更に、定着方式としては、加熱・加圧定着、加熱定着、あるいは加圧定着など適宜選定して差し支えない。 In such a technical means, the transport unit 1 passes through the supply unit 1a for supplying the continuous recording material S, the collection unit 1b for collecting the imaged / fixed recording material S, the image forming unit 2, and the fixing unit 3. Includes a transport member (not shown) that transports via a predetermined route so as to allow. The electrophotographic method is typical for the image forming unit 2 as long as it produces an unfixed image that can be fixed by the fixing unit 3, but other image forming methods (electrostatic recording method, etc.) may be used. Also widely included. Further, the fixing portion 3 is not limited to the contact method in which the fixing member is brought into contact with the recording material S, but also includes a non-contact method in which the fixing member is arranged in a non-contact manner. Further, the fixing method includes heating / pressure fixing and heat fixing. , Or pressure fixing may be selected as appropriate.

また、排除機構４は、記録材Ｓの搬送が作像途中で停止された条件（例えば装置筐体の開閉扉が急に開放するとき等の安全策としてインターロック機構が働いてマシンを緊急停止する条件）で働く。このとき、作像部２を通過して定着部３に至らない記録材Ｓ部分には未定着画像（図示せず）が存在するため、定着部３の定着条件（例えば温度条件）が整うまで待ち再スタートしなければ、未定着画像が定着部３を通過して回収部１ｂに回収される懸念がある。しかし、定着条件が整うまで待って回収部１ｂに回収し、その後に記録材Ｓの不良領域を回収する場合には、時間的なロスが大きくなり、記録材Ｓの不良領域に対する除去範囲が長くなってしまう。本例では、排除機構４が記録材Ｓの不良領域を未定着画像が内側になるように折り込むため、定着部３の定着条件が整う前であっても、定着部３を通過させることが可能である。 Further, in the exclusion mechanism 4, the interlock mechanism works as a safety measure when the transport of the recording material S is stopped in the middle of image formation (for example, when the opening / closing door of the device housing is suddenly opened, etc.), and the machine is stopped urgently. Work under the conditions). At this time, since an unfixed image (not shown) exists in the recording material S portion that passes through the image forming portion 2 and does not reach the fixing portion 3, until the fixing conditions (for example, temperature conditions) of the fixing portion 3 are satisfied. If the wait is not restarted, there is a concern that the unfixed image will pass through the fixing unit 3 and be collected by the collecting unit 1b. However, when the defective region of the recording material S is collected after waiting until the fixing conditions are satisfied and then collected in the collection unit 1b, the time loss becomes large and the removal range for the defective region of the recording material S is long. turn into. In this example, since the exclusion mechanism 4 folds the defective region of the recording material S so that the unfixed image is on the inside, it is possible to pass the fixing portion 3 even before the fixing conditions of the fixing portion 3 are satisfied. Is.

次に、本実施の形態に係る画像形成装置の代表的態様又は好ましい態様について説明する。
先ず、排除機構４の代表的態様としては、図１（ａ）～（ｃ）に示すように、作像部２と定着部３との間に設けられ、記録材Ｓの搬送が作像途中で停止されたときに、記録材Ｓの搬送方向に交差する方向（図１（ｂ）中のＡ方向に相当）に向かって当該記録材Ｓを折り込む第１の折込み部材５と、第１の折込み部材５で折り込まれた記録材Ｓを記録材Ｓの搬送方向（図１（ｃ）中のＢ方向に相当）に向かって折り込む第２の折込み部材６と、を有する態様が挙げられる。本例は、２つの折込み部材５，６を用いて記録材Ｓの不良領域をＺ折りする態様である。 Next, a typical aspect or a preferable aspect of the image forming apparatus according to the present embodiment will be described.
First, as a typical embodiment of the exclusion mechanism 4, as shown in FIGS. 1 (a) to 1 (c), it is provided between the image forming portion 2 and the fixing portion 3, and the recording material S is conveyed during image drawing. When stopped at, the first folding member 5 and the first folding member 5 that fold the recording material S in the direction intersecting the transport direction of the recording material S (corresponding to the A direction in FIG. 1B). An embodiment having a second folding member 6 for folding the recording material S folded by the folding member 5 in the transport direction of the recording material S (corresponding to the B direction in FIG. 1C) can be mentioned. In this example, the defective region of the recording material S is Z-folded by using the two folding members 5 and 6.

また、作像部２として、画像を保持する像保持体２ａと、像保持体２ａに接触して追従回転する転写部材を有し、像保持体２ａと転写部材とで記録材Ｓを挟持して搬送することで像保持体２ａ上の画像を記録材Ｓに転写する転写部２ｂとを備えた態様において、好ましい排除機構４としては、記録材Ｓの搬送が作像途中で停止されたときに、転写部２ｂでは当該転写部２ｂ位置よりも搬送方向上流側に位置する記録材Ｓ部分の通過を許容する態様が挙げられる。本例では、排除機構４は、記録材Ｓの緊急停止時に、記録材Ｓの未定着画像部分を折り込むためには、転写部２ｂ位置よりも搬送方向上流側に位置する記録材Ｓ部分が転写部２ｂを通過する挙動を許容する必要があり、例えば像保持体２ａと転写部材とを非接触配置するようにしたり、あるいは、像保持体２ａの回転を停止した状態で転写部材側の回転を許容する手法が挙げられる。 Further, the image-creating unit 2 has an image-holding body 2a for holding an image and a transfer member that contacts and rotates following the image-holding body 2a, and the recording material S is sandwiched between the image-holding body 2a and the transfer member. In the embodiment provided with the transfer unit 2b for transferring the image on the image holder 2a to the recording material S by transporting the image holder 2a, the preferred exclusion mechanism 4 is when the transport of the recording material S is stopped in the middle of image formation. In addition, the transfer unit 2b may allow the passage of the recording material S portion located on the upstream side in the transport direction from the transfer unit 2b position. In this example, in the exclusion mechanism 4, in order to fold the unfixed image portion of the recording material S at the time of an emergency stop of the recording material S, the recording material S portion located upstream of the transfer portion 2b position is transferred. It is necessary to allow the behavior of passing through the portion 2b. For example, the image holder 2a and the transfer member may be arranged in a non-contact manner, or the transfer member side may be rotated while the rotation of the image holder 2a is stopped. There are methods that allow it.

更に、記録材Ｓの未定着画像部分を折り込むに当たり、記録材Ｓの折り込み状態を安定的に保持するには、折り込んだ記録材Ｓ部分の少なくとも定着部３側を接着する接着手段７を有する態様が好ましい。本例は、折り込んだ記録材Ｓ部分の少なくとも定着部３側を接着するもので、折り込まれた記録材Ｓ部分が定着部３を通過する際に折り込み状態を崩れ難くしたものである。
そして、接着手段７の代表的態様としては、定着部３が熱溶融性の作像材料による画像を加熱定着する態様では、接着手段７は未定着画像の作像材料を定着部３にて接着させるものが挙げられる。本例は、定着部３が加熱定着方式であって、未定着画像の作像材料を接着剤として利用したもので、専用の接着手段を不要とする態様である。
また、接着手段７の他の代表的態様としては、針無綴じ具にて構成され、折り込んだ記録材Ｓ部分の定着部３側を針無綴じすることで接着する態様がある。ここで、針無綴じとしては、局部的な圧着若しくは局部的な折り込みが挙げられる。 Further, in order to stably maintain the folded state of the recording material S when folding the unfixed image portion of the recording material S, an embodiment having an adhesive means 7 for adhering at least the fixing portion 3 side of the folded recording material S portion. Is preferable. In this example, at least the fixing portion 3 side of the folded recording material S portion is adhered, and the folded state is not easily broken when the folded recording material S portion passes through the fixing portion 3.
As a typical aspect of the adhesive means 7, in the embodiment in which the fixing portion 3 heats and fixes the image made of the heat-meltable image-forming material, the bonding means 7 adheres the image-forming material of the unfixed image at the fixing portion 3. There are things that make you. In this example, the fixing portion 3 is a heat fixing method and uses an image forming material of an unfixed image as an adhesive, and does not require a dedicated adhesive means.
Further, as another typical embodiment of the adhesive means 7, there is an embodiment in which a needle-free binding tool is used and the fixed portion 3 side of the folded recording material S portion is bonded by needle-free binding. Here, examples of needleless binding include local crimping or local folding.

更に、排除機構４による記録材Ｓの不良領域についての排除時期の代表例としては、排除機構４は定着部３を通過する前に折り込んだ記録材Ｓ部分を不良領域として排除するものが挙げられる。ここで、排除の手法としては、例えば切断等により該当箇所を除去する態様が挙げられる。
また、前述した排除機構４による記録材Ｓの不良領域についての排除時期の他の例としては、排除機構４は折り込んだ記録材Ｓ部分を定着部３を通過させた後、回収した記録材から不良領域として排除する態様が挙げられる。本例では、回収部１ｂに回収された記録材Ｓのうち、折り込まれた記録材Ｓ部分を不良領域として除去するようにすればよい。 Further, as a typical example of the exclusion time of the defective region of the recording material S by the exclusion mechanism 4, the exclusion mechanism 4 excludes the recording material S portion folded before passing through the fixing portion 3 as a defective region. .. Here, as an exclusion method, for example, an embodiment of removing the relevant portion by cutting or the like can be mentioned.
Further, as another example of the exclusion time for the defective region of the recording material S by the above-mentioned exclusion mechanism 4, the exclusion mechanism 4 passes the folded recording material S portion through the fixing portion 3 and then collects the recording material. An embodiment of exclusion as a defective region can be mentioned. In this example, of the recording material S collected by the collecting unit 1b, the folded recording material S portion may be removed as a defective region.

更に、排除機構４の好ましい態様としては、作像部２位置よりも搬送方向下流側に位置する記録材Ｓ上の未定着画像領域が検出可能な検出器８を有し、当該検出器８にて検出された未定着画像領域を折り込み対象として折り込むものが挙げられる。本例は、ラインセンサ等の検出器８にて記録材Ｓ上の未定着画像領域を検出し、未定着画像領域に対応した必要最小限の記録材Ｓ部分を折り込む態様である。 Further, as a preferred embodiment of the exclusion mechanism 4, the detector 8 has a detector 8 capable of detecting an unfixed image region on the recording material S located on the downstream side in the transport direction from the position of the image forming portion 2. An example is to fold the unfixed image area detected in the above as a fold target. In this example, an unfixed image region on the recording material S is detected by a detector 8 such as a line sensor, and the minimum necessary recording material S portion corresponding to the unfixed image region is folded.

以下、添付図面に示す実施の形態に基づいて本発明を詳細に説明する。
◎実施の形態１
＜画像形成装置の全体構成＞
図２は実施の形態１に係る画像形成装置の全体構成を示す説明図である。
同図において、画像形成装置２０は、連続する記録材（以下連続紙という）Ｓに画像を形成するものであって、作像部としての作像エンジン３０を内蔵する作像ユニット２１及び作像エンジン３０にて作製された画像が定着される定着器６０を内蔵する定着ユニット２２を並列配置し、連続紙搬送系２３にて連続紙Ｓを所定の経路に沿って搬送することで、作像ユニット２１に連続紙Ｓを供給し、作像ユニット２１の作像エンジン３０及び定着ユニット２２の定着器６０による処理を経た後、定着ユニット２２から排出された連続紙Ｓを回収するようにしたものである。尚、画像形成装置２０の態様としてはこれに限られるものではなく、例えば作像ユニット２１と定着ユニット２２とを別ユニットにするのではなく、共通の装置ユニットとして構成し、装置ユニット内に作像エンジン３０及び定着器６０を組み込むものであってもよいし、更には、連続紙Ｓに別の加工を施すような装置を更に追加する構成を有するものであってもよい。 Hereinafter, the present invention will be described in detail based on the embodiments shown in the accompanying drawings.
◎ Embodiment 1
<Overall configuration of image forming device>
FIG. 2 is an explanatory diagram showing the overall configuration of the image forming apparatus according to the first embodiment.
In the figure, the image forming apparatus 20 forms an image on a continuous recording material (hereinafter referred to as continuous paper) S, and has an image forming unit 21 having a built-in image forming engine 30 as an image forming unit and an image drawing. An image is created by arranging the fixing units 22 having a built-in fixing device 60 for fixing the image produced by the engine 30 in parallel and transporting the continuous paper S along a predetermined path by the continuous paper transport system 23. The continuous paper S is supplied to the unit 21, processed by the image forming engine 30 of the image forming unit 21 and the fixing device 60 of the fixing unit 22, and then the continuous paper S discharged from the fixing unit 22 is collected. Is. The aspect of the image forming apparatus 20 is not limited to this. For example, the image forming unit 21 and the fixing unit 22 are not made into separate units, but are configured as a common apparatus unit and created in the apparatus unit. The image engine 30 and the fuser 60 may be incorporated, or the continuous paper S may be further provided with a device for performing another processing.

－作像エンジン－
本実施の形態において、作像エンジン３０は、複数（本例では６つ）の色成分画像を形成する画像形成部３１（具体的には３１ａ～３１ｆ）と、各画像形成部３１にて形成された各画像を連続紙Ｓに転写する前に一次転写して保持するベルト状の中間転写体４０と、中間転写体４０上に一次転写された各画像を連続紙Ｓに一括転写（二次転写）する二次転写器５０とを備えている。
ここで、本例では、画像形成部３１は、例えば電子写真方式を採用するもので、例えば周面に感光層が形成されたドラム状の感光体３２と、この感光体３２を帯電する例えば帯電ロール等の帯電器３３と、この帯電器３３にて帯電された感光体３２上に静電潜像を書き込む例えばＬＥＤアレイからなる潜像書込器３４と、この潜像書込器３４にて書き込まれた感光体３２上の静電潜像を各色成分トナーが含まれる現像剤にて可視像化する現像器３５と、この現像器３５にて可視像化されたトナーによる画像のうち感光体３２上に残留したトナーを清掃する清掃器３６と、を備えている。尚、電子写真デバイスは公知のものを広く採用することができ、例えば潜像書込器３４としてはＬＥＤアレイに代えてレーザ走査装置を用いるようにしてもよい。また、画像形成部３１は、本例では電子写真方式を採用したものであるが、これに限られるものではなく、例えば感光体３２に代えて誘電体を用い、静電潜像をイオンヘッドにて形成する静電記録方式など適宜選定して差し支えない。 -Image drawing engine-
In the present embodiment, the image forming engine 30 is formed by an image forming unit 31 (specifically, 31a to 31f) forming a plurality of (six in this example) color component images and each image forming unit 31. A belt-shaped intermediate transfer body 40 that is primarily transferred and held before transferring each of the images to the continuous paper S, and each image that is primarily transferred onto the intermediate transfer body 40 are collectively transferred to the continuous paper S (secondary). It is equipped with a secondary transfer device 50 for transfer).
Here, in this example, the image forming unit 31 adopts, for example, an electrophotographic method, for example, a drum-shaped photoconductor 32 having a photosensitive layer formed on its peripheral surface and, for example, charging that charges the photoconductor 32. With a charger 33 such as a roll, a latent image writer 34 composed of, for example, an LED array, which writes an electrostatic latent image on the photoconductor 32 charged by the charger 33, and the latent image writer 34. Of the developer 35 that visualizes the written electrostatic latent image on the photoconductor 32 with a developer containing each color component toner, and the image by the toner that is visualized by this developer 35. A cleaner 36 for cleaning the toner remaining on the photoconductor 32 is provided. As the electrophotographic device, a known one can be widely adopted. For example, as the latent image writer 34, a laser scanning device may be used instead of the LED array. Further, the image forming unit 31 adopts an electrophotographic method in this example, but is not limited to this, and for example, a dielectric is used instead of the photoconductor 32, and an electrostatic latent image is used as an ion head. The electrostatic recording method to be formed may be appropriately selected.

また、本例では、中間転写体４０は複数の張架ロール４１～４４に掛け渡され、例えば張架ロール４１を駆動ロールとし、張架ロール４３を張力付与ロールとして循環回転するようになっており、中間転写体４０のうち各画像形成部３１の感光体３２に対向する部位には一次転写ロール等の一次転写器４５が設けられ、感光体３２上の画像を中間転写体４０上に一次転写するようになっている。
更に、中間転写体４０のうち二次転写部位よりも回転方向下流側（本例では張架ロール４１に対向する部位）には中間転写体４０上に残留するトナーを清掃する中間転写体清掃器４６が設置されている。
更にまた、二次転写器５０は、中間転写体４０の張架ロール４４に対向する部位にて中間転写体４０に追従回転する二次転写ロール５１を有し、中間転写体４０との間で連続紙Ｓをニップ搬送すると共に、張架ロール４４を対向電極として二次転写電界を形成することにより連続紙Ｓに対して中間転写体４０上で多重化された各画像を連続紙Ｓに一括転写するものである。尚、本例では、二次転写ロール５１はリトラクト機構５５（図３参照）を介して中間転写体４０から接離するようになっている。 Further, in this example, the intermediate transfer body 40 is hung on a plurality of tensioning rolls 41 to 44, and for example, the tensioning roll 41 is used as a driving roll and the tensioning roll 43 is used as a tension applying roll to circulate and rotate. A primary transfer device 45 such as a primary transfer roll is provided at a portion of the intermediate transfer body 40 facing the photoconductor 32 of each image forming unit 31, and an image on the photoconductor 32 is primary on the intermediate transfer body 40. It is designed to be transcribed.
Further, an intermediate transfer body cleaner that cleans the toner remaining on the intermediate transfer body 40 on the downstream side in the rotation direction (the portion facing the tension roll 41 in this example) of the intermediate transfer body 40 from the secondary transfer site. 46 is installed.
Furthermore, the secondary transfer device 50 has a secondary transfer roll 51 that follows and rotates the intermediate transfer body 40 at a portion of the intermediate transfer body 40 facing the tension roll 44, and is located between the intermediate transfer body 40 and the intermediate transfer body 40. By nip-conveying the continuous paper S and forming a secondary transfer electric field using the tension roll 44 as a counter electrode, each image multiplexed on the intermediate transfer body 40 with respect to the continuous paper S is collectively combined into the continuous paper S. It is to be transcribed. In this example, the secondary transfer roll 51 is brought into contact with and detached from the intermediate transfer body 40 via the retract mechanism 55 (see FIG. 3).

－定着器－
更に、本例では、定着器６０は、ヒータが内蔵され且つ駆動回転される加熱定着ロール６１と、この加熱定着ロール６１に圧接配置されて追従回転する加圧定着ロール６２とを有し、両定着ロール６１，６２間に連続紙Ｓを通過することで連続紙Ｓ上の未定着画像を加熱、加圧定着するものである。尚、定着器６０としては、これに限られるものではなく、例えば定着部材としてロール部材に代えてベルト部材を用いるようにしてもよいし、また、非接触方式のフラッシュ定着やレーザ定着を用いるようにしてもよい。 -Fixer-
Further, in this example, the fuser 60 has a heat fixing roll 61 having a built-in heater and being driven and rotated, and a pressure fixing roll 62 which is pressure-welded to the heat fixing roll 61 and is driven and rotated. By passing the continuous paper S between the fixing rolls 61 and 62, the unfixed image on the continuous paper S is heated and pressure-fixed. The fixing device 60 is not limited to this, and for example, a belt member may be used instead of the roll member as the fixing member, and a non-contact flash fixing or laser fixing may be used. You may do it.

－連続紙搬送系－
本実施の形態において、連続紙搬送系２３は、作像ユニット２１のうち連続紙Ｓの搬送方向上流側には連続紙供給装置２４を設置すると共に、定着ユニット２２のうち連続紙Ｓの搬送方向下流側には連続紙回収装置２５を設置したものであり、作像ユニット２１から定着ユニット２２にかけて予め決められた搬送経路２６を設け、この搬送経路２６には図示外の搬送部材（搬送ロールや搬送ベルト等）を配設したものである。
本例では、連続紙供給装置２４は、図２に示すように、連続紙Ｓがロール状に巻かれ且つ図示外の駆動源にて回転することで連続紙Ｓが巻き出される巻出ロール７０を有し、巻き出された連続紙Ｓを複数の案内ロール７１～７５に掛け渡して案内し、作像ユニット２１内に供給するようになっている。
また、連続紙回収装置２５は、連続紙Ｓがロール状に巻かれ且つ図示外の駆動源にて回転することで連続紙Ｓが巻き取られる巻取ロール８０を有し、定着ユニット２２から排出された連続紙Ｓを複数の案内ロール８１，８２に掛け渡して案内した後、巻取ロール８０に巻き取って回収するようになっている。尚、案内ロール７１～７５の少なくとも一つ、案内ロール８１，８２のいずれかは連続紙Ｓに張力を付与する張力付与ロールとして機能するようになっている。
更に、搬送経路２６のうち二次転写器５０の転写部位よりも連続紙Ｓの搬送方向上流側には、中間転写体４０上に保持されている画像との位置合せのための位置合せロール２７が配設されており、また、搬送経路２６のうち定着器６０を通過した直後には冷却器２８が配設されており、定着器６０による定着処理を経た連続紙Ｓを冷却した後に、定着ユニット２２から排出するようになっている。 -Continuous paper transport system-
In the present embodiment, in the continuous paper transport system 23, the continuous paper supply device 24 is installed on the upstream side of the image forming unit 21 in the transport direction of the continuous paper S, and the continuous paper transport system 23 of the fixing unit 22 is in the transport direction. A continuous paper recovery device 25 is installed on the downstream side, and a predetermined transport path 26 is provided from the image forming unit 21 to the fixing unit 22. The transport path 26 is provided with a transport member (a transport roll or a transport roll) (not shown). A transport belt, etc.) is arranged.
In this example, as shown in FIG. 2, the continuous paper supply device 24 is a roll 70 in which the continuous paper S is wound in a roll shape and the continuous paper S is unwound by rotating with a drive source (not shown). The unwound continuous paper S is spread over and guided by a plurality of guide rolls 71 to 75, and is supplied into the image forming unit 21.
Further, the continuous paper collecting device 25 has a winding roll 80 in which the continuous paper S is wound in a roll shape and is rotated by a drive source (not shown) to wind the continuous paper S, and is discharged from the fixing unit 22. The continuous paper S is hung on a plurality of guide rolls 81 and 82 for guidance, and then wound on a take-up roll 80 for collection. At least one of the guide rolls 71 to 75 and any one of the guide rolls 81 and 82 functions as a tension applying roll that applies tension to the continuous paper S.
Further, on the upstream side of the transport path 26 in the transport direction of the continuous paper S from the transfer site of the secondary transfer device 50, the alignment roll 27 for alignment with the image held on the intermediate transfer body 40 Is arranged, and a cooler 28 is arranged immediately after passing through the fixing device 60 in the transport path 26, and after cooling the continuous paper S that has undergone the fixing process by the fixing device 60, fixing is performed. It is designed to be discharged from the unit 22.

＜排除機構＞
本実施の形態では、例えば画像形成装置２０の作像中にユーザが誤って装置筐体の開閉扉を開放したような場合には、図示外のインターロック機構による安全装置が働き、作像エンジン３０による作像処理及び連続紙搬送系２３が停止するようになっている。
このように、連続紙Ｓが作像途中で緊急に停止した条件下では、作像エンジン３０の二次転写部位ＴＰと定着器６０による定着部位ＦＰとの間に位置する連続紙Ｓには未定着画像が存在することが多い。この場合、連続紙Ｓの未定着画像領域の取り扱いとしては、連続紙Ｓが緊急停止すると、二次転写部位ＴＰで像ずれが生じたり、画像形成装置の作動を再開するにしても、定着器６０による未定着画像に対する定着性が不十分になるケースが多いため、連続紙Ｓの未定着画像領域については不良領域として排除することが必要である。
そこで、本実施の形態では、作像エンジン３０の二次転写部位ＴＰと定着器６０の定着部位ＦＰとの間には排除機構１００が設けられている。 <Exclusion mechanism>
In the present embodiment, for example, when the user accidentally opens the opening / closing door of the device housing during image drawing of the image forming apparatus 20, a safety device by an interlock mechanism (not shown) works and the image forming engine The image forming process by 30 and the continuous paper transport system 23 are stopped.
As described above, under the condition that the continuous paper S is urgently stopped in the middle of image formation, the continuous paper S located between the secondary transfer site TP of the image formation engine 30 and the fixing site FP by the fuser 60 is undecided. There are often ringing images. In this case, regarding the handling of the unfixed image region of the continuous paper S, when the continuous paper S is stopped urgently, the image shift occurs at the secondary transfer site TP, or even if the operation of the image forming apparatus is restarted, the fuser Since there are many cases where the fixability for the unfixed image by 60 is insufficient, it is necessary to exclude the unfixed image region of the continuous paper S as a defective region.
Therefore, in the present embodiment, the exclusion mechanism 100 is provided between the secondary transfer site TP of the image forming engine 30 and the fixing site FP of the fuser 60.

本実施の形態において、排除機構１００は、図２及び図３に示すように、連続紙Ｓの搬送が作像途中で停止されたときに、連続紙Ｓの搬送方向に交差する方向であって、未定着画像が形成された面側から反対の面側（本例では鉛直方向下方に向かうＡ方向に相当）に向かって当該連続紙Ｓを折り込む第１の折込みロッド１０１と、第１の折込みロッド１０１で折り込まれた連続紙Ｓを連続紙Ｓの搬送方向（本例では二次転写部位ＴＰと定着部位ＦＰとを結ぶＢ方向に相当）に向かって折り込む第２の折込みロッド１０２と、を有し、連続紙Ｓの未定着画像領域の部分を画像が内側になるようにＺ折りに折り込むようにしたものである。
本例では、各折込みロッド１０１，１０２はいずれも連続紙Ｓの幅寸法よりも長い円柱棒にて構成されている。 In the present embodiment, as shown in FIGS. 2 and 3, the exclusion mechanism 100 is in a direction intersecting the transport direction of the continuous paper S when the transport of the continuous paper S is stopped in the middle of image formation. The first folding rod 101 and the first folding rod 101 for folding the continuous paper S from the surface side on which the unfixed image is formed to the opposite surface side (corresponding to the A direction downward in the vertical direction in this example). A second folding rod 102 that folds the continuous paper S folded by the rod 101 in the transport direction of the continuous paper S (corresponding to the B direction connecting the secondary transfer site TP and the fixing site FP in this example). The unfixed image region of the continuous paper S is folded into a Z-fold so that the image is on the inside.
In this example, each of the folding rods 101 and 102 is composed of a cylindrical rod longer than the width dimension of the continuous paper S.

本例では、排除機構１００は、画像形成装置２０のユーザ等の作業者が各折込みロッド１０１，１０２を手動操作することで連続紙Ｓを折り込むようになっており、各折込みロッド１０１，１０２は図示外の案内レールに沿って摺動可能で、予め決められた初期位置Ａ０，Ｂ０と折込み位置Ａ１，Ｂ１との間を移動するようになっている。
ここで、第１の折込みロッド１０１の初期位置Ａ０は、二次転写部位ＴＰと定着部位ＦＰとの間に位置する連続紙Ｓよりも上方に離れた位置で、二次転写部位ＴＰ寄りに選定されている。一方、第２の折込みロッド１０２の初期位置Ｂ０は、二次転写部位ＴＰと定着部位ＦＰとの間に位置する連続紙Ｓよりも下方に離れた位置で、第１の折込みロッド１０１の初期位置Ａ０よりも更に二次転写部位ＴＰ寄りに選定されている。また、第１の折込みロッド１０１の折込み位置Ａ１は初期位置Ａ０から鉛直方向下方に位置し、第２の折込みロッド１０２の初期位置Ｂ０よりも更に下方の位置に選定されている。更に、第２の折込みロッド１０２の折込み位置Ｂ１は定着部位ＦＰの手前付近で、第１の折込みロッド１０１の折込み位置Ａ１よりも上方の位置に選定されている。このとき、連続紙ＳのＺ折り部分Ｓｚ（図５参照）をできるだけ扁平形状に保つようにするには、第２の折込みロッド１０２の折込み位置Ｂ１では、連続紙ＳのＺ折り部分Ｓｚのうち、第２の折込みロッド１０２で折り込んだ部分が第１の折込みロッド１０１で折り込んだ部分と接触配置するような位置関係になっていることが好ましい。 In this example, the exclusion mechanism 100 is such that a worker such as a user of the image forming apparatus 20 manually operates the folding rods 101 and 102 to fold the continuous paper S, and the folding rods 101 and 102 are folded. It is slidable along a guide rail (not shown) and moves between the predetermined initial positions A 0 and B 0 and the folding positions A 1 and B 1 .
Here, the initial position A0 of the first folding rod 101 is located above the continuous paper S located between the secondary transfer site TP and the fixing site FP, and is closer to the secondary transfer site TP. It has been selected. On the other hand, the initial position B 0 of the second folding rod 102 is a position separated below the continuous paper S located between the secondary transfer site TP and the fixing site FP, and is the initial position of the first folding rod 101. It is selected closer to the secondary transcription site TP than the position A0 . Further, the folding position A 1 of the first folding rod 101 is located vertically below the initial position A 0 , and is selected at a position further below the initial position B 0 of the second folding rod 102. Further, the folding position B 1 of the second folding rod 102 is selected near the front of the fixing portion FP and above the folding position A 1 of the first folding rod 101. At this time, in order to keep the Z-folded portion Sz of the continuous paper S (see FIG. 5) as flat as possible, the Z - folded portion Sz of the continuous paper S is set at the folding position B1 of the second folding rod 102. Of these, it is preferable that the portion folded by the second folding rod 102 is in contact with the portion folded by the first folding rod 101.

また、本例では、排除機構１００は、最初に第１の折込みロッド１０１を操作し、次に、第２の折込みロッド１０２を操作するという操作手順を必要とするため、第１の折込みロッド１０１の操作が完了しない限り、第２の折込みロッド１０２の操作を実施不可とする工夫がなされている。例えば各折込みロッド１０１，１０２は初期位置Ａ０，Ｂ０に夫々保持されるようにストッパ（図示せず）で移動が規制されており、排除機構１００を使用する条件が整うと、第１の折込みロッド１０１のストッパによる移動規制が解除され、第１の折込みロッド１０１の移動が許容され、また、第１の折込みロッド１０１が折込み位置Ａ１に到達したことを例えば位置センサで検出すると、第２の折込みロッド１０２のストッパによる移動規制が解除され、第２の折込みロッド１０２の移動が許容されるようになっている。 Further, in this example, since the exclusion mechanism 100 requires an operation procedure of first operating the first folding rod 101 and then operating the second folding rod 102, the first folding rod 101 is required. The operation of the second folding rod 102 cannot be performed unless the operation of the second folding rod 102 is completed. For example, the movement of each of the folding rods 101 and 102 is restricted by a stopper (not shown) so that they are held at the initial positions A 0 and B 0 , respectively, and when the conditions for using the exclusion mechanism 100 are met, the first When the movement restriction by the stopper of the folding rod 101 is released, the movement of the first folding rod 101 is allowed, and it is detected by the position sensor, for example, that the first folding rod 101 has reached the folding position A1, the first position sensor is used. The movement restriction by the stopper of the folding rod 102 of 2 is released, and the movement of the second folding rod 102 is allowed.

＜制御系＞
本例では、図３に示すように、制御装置１１０は例えばマイクロコンピュータにて構成され、例えば画像形成装置筐体の開閉扉を開放したときの開閉センサからの開放状態を示す信号（インターロック機構の安全装置に対する停止信号ＳＧｔとして作用）や、画像形成装置の作像動作を開始させるスタート信号ＳＧａが入力され、ＲＯＭ中に予めインストールされているプログラム（例えば作像プログラムや図４に示す排除処理プログラムなど）を実行し、連続紙供給装置２４、連続紙回収装置２５、作像エンジン３０、二次転写器５０のリトラクト機構５５、定着器６０、排除機構１００へ所定の制御信号を送出するようになっている。 <Control system>
In this example, as shown in FIG. 3, the control device 110 is configured by, for example, a microcomputer, for example, a signal (interlock mechanism) indicating an open state from an open / close sensor when the open / close door of the image forming apparatus housing is opened. (Acts as a stop signal SGt for the safety device of (Program, etc.) is executed, and a predetermined control signal is sent to the continuous paper supply device 24, the continuous paper recovery device 25, the image drawing engine 30, the retract mechanism 55 of the secondary transfer device 50, the fuser 60, and the exclusion mechanism 100. It has become.

＜画像形成装置の作動＞
次に、本実施の形態に係る画像形成装置の作動を説明する。
－通常の作像動作－
今、画像形成装置２０でスタートスイッチをオンすると、制御装置１１０はスタート信号ＳＧａを受けて作像エンジン３０（二次転写器５０はリトラクト解除状態）、定着器６０等による作像動作を開始させると共に、連続紙供給装置２４及び連続紙回収装置２５を駆動することで連続紙Ｓの搬送を開始させる。この状態において、作像エンジン３０では、各画像形成部３１（３１ａ～３１ｆ）で形成された各色成分画像が中間転写体４０に一次転写され、二次転写器５０にて連続紙Ｓに二次転写される。この後、連続紙Ｓに二次転写された画像は定着器６０にて定着され、画像定着された連続紙Ｓは連続紙回収装置２５に回収される。 <Operation of image forming device>
Next, the operation of the image forming apparatus according to the present embodiment will be described.
-Normal image formation operation-
Now, when the start switch is turned on in the image forming apparatus 20, the control device 110 receives the start signal SGa and starts the image forming operation by the image forming engine 30 (the secondary transfer device 50 is in the retract-released state), the fuser 60, and the like. At the same time, the continuous paper S is started to be conveyed by driving the continuous paper supply device 24 and the continuous paper recovery device 25. In this state, in the image forming engine 30, each color component image formed by each image forming unit 31 (31a to 31f) is primarily transferred to the intermediate transfer body 40, and is secondarily transferred to the continuous paper S by the secondary transfer device 50. Transcribed. After that, the image secondarily transferred to the continuous paper S is fixed by the fixing device 60, and the continuous paper S image-fixed is collected by the continuous paper collecting device 25.

－排除機構による排除処理－
今、画像形成装置２０が作像中であるときに、ユーザが画像形成装置筐体の開閉扉を開放したと仮定すると、制御装置１１０には開閉扉が開放したことに伴う停止信号ＳＧｔが入力される。このとき、制御装置１１０は停止信号ＳＧｔを受けて作像、連続紙搬送を直ちに停止させると共に、中間転写体４０から離れるように二次転写器５０をリトラクトさせる。
この状態において、制御装置１１０は排除機構１００による排除処理を実施可能な状態にする。本例では、排除機構１００の各折込みロッド１０１，１０２は図５（ａ）に示すように、夫々が初期位置Ａ０，Ｂ０に位置しており、停止信号ＳＧｔによって第１の折込みロッド１０１の移動が許容される。このため、ユーザ等の作業者は、図５（ｂ）に示すように、鉛直方向下方（矢印Ａ方向）に向けて第１の折込みロッド１０１を折込み位置Ａ１まで移動させ、二次転写部位ＴＰと定着部位ＦＰとの間の連続紙Ｓを下に向けて凸の山型状に折り込む。 -Exclusion processing by exclusion mechanism-
Assuming that the user opens the open / close door of the image forming apparatus housing while the image forming apparatus 20 is drawing an image, a stop signal SGt accompanying the opening of the opening / closing door is input to the control device 110. Will be done. At this time, the control device 110 receives the stop signal SGt to immediately stop image formation and continuous paper transfer, and retracts the secondary transfer device 50 so as to move away from the intermediate transfer body 40.
In this state, the control device 110 makes the exclusion process by the exclusion mechanism 100 feasible. In this example, as shown in FIG. 5A, the folding rods 101 and 102 of the exclusion mechanism 100 are respectively located at the initial positions A 0 and B 0 , and the first folding rod 101 is located by the stop signal SGt. Movement is allowed. Therefore, as shown in FIG. 5B, a worker such as a user moves the first folding rod 101 to the folding position A1 in the downward direction in the vertical direction (direction of arrow A), and the secondary transfer site. The continuous paper S between the TP and the fixing portion FP is folded downward in a convex chevron shape.

そして、第１の折込みロッド１０１が折込み位置Ａ１に到達すると、第２の折込みロッド１０２の移動規制が解除され、移動が許容される。この状態において、作業者は、図５（ｃ）に示すように、二次転写部位ＴＰと定着部位ＦＰとを結ぶ線に沿って矢印Ｂ方向に向けて第２の折込みロッド１０２を折込み位置Ｂ１まで移動させ、連続紙Ｓのうち未定着画像領域が内側になるようにＺ折りに折り込まれる。このとき、第２の折込みロッド１０２が初期位置Ｂ０から折込み位置Ｂ１まで移動するとき、二次転写部位ＴＰを通過する連続紙Ｓは搬送方向に引っ張られることになるが、本例では、二次転写器５０が中間転写体４０からリトラクトしているため、連続紙Ｓが二次転写部位ＴＰを通過する際に過剰な引張負荷が生ずる懸念は少ない。 Then, when the first folding rod 101 reaches the folding position A1, the movement restriction of the second folding rod 102 is released and the movement is allowed. In this state, as shown in FIG. 5C, the operator inserts the second folding rod 102 in the folding position B in the direction of arrow B along the line connecting the secondary transfer site TP and the fixing site FP. It is moved to 1 and folded into a Z-fold so that the unfixed image area of the continuous paper S is on the inside. At this time, when the second folding rod 102 moves from the initial position B 0 to the folding position B 1 , the continuous paper S passing through the secondary transfer site TP is pulled in the transport direction, but in this example, it is pulled. Since the secondary transfer device 50 retracts from the intermediate transfer body 40, there is little concern that an excessive tensile load will occur when the continuous paper S passes through the secondary transfer site TP.

この状態において、連続紙ＳのＺ折り部分Ｓｚは、図６（ａ）に示すように、両方の折込みロッド１０１，１０２が夫々の折込み位置Ａ１，Ｂ１に配置されたままであるため、連続紙ＳのＺ折り部分Ｓｚを再度搬送することができない。
そこで、本例では、連続紙ＳのＺ折り部分Ｓｚを不良領域として排除するために、作業者は、図６（ａ）（ｂ）に示すように、第１の折込みロッド１０１を軸方向の一方（本例では図６（ｂ）中のＣ方向）に向けて連続紙Ｓから外れた側方の引抜き位置Ａ２まで引抜き、更に、第２の折込みロッド１０２を初期位置Ｂ０に向けて戻すようにすればよい。尚、引抜き位置Ａ２に引抜いた第１の折込みロッド１０１は初期位置Ａ０に戻すようにすればよい。
この状態において、連続紙ＳのＺ折り部分Ｓｚからは両方の折込みロッド１０１，１０２が取り除かれ、連続紙ＳのＺ折り部分Ｓｚは、図７（ａ）（ｂ）に示すように、連続紙Ｓの搬送を再開すると、Ｚ折りの状態を保ったまま定着器６０の定着部位ＦＰを通過する。このとき、連続紙ＳのＺ折り部分Ｓｚの下側の折込み部分は内側に未定着画像が折り込まれたまま残存することから、定着器６０の定着部位ＦＰを通過するときに、その加熱条件が定着可能条件に比べてまだ未準備の状態（例えば加熱条件の目標温度に未到達な状態など）であるとしても、連続紙ＳのＺ折り部分Ｓｚの未定着画像領域が接着作用を発揮し、連続紙ＳのＺ折り部分Ｓｚは略そのままの状態で定着器６０を通過する。そして、連続紙ＳのＺ折り部分Ｓｚは、図７（ｃ）に示すように、不良領域ＲＮＧとして連続紙回収装置２５に巻き取られて回収される。
このため、本例では、連続紙ＳのＺ折り部分Ｓｚは不良領域ＲＮＧとして連続紙回収装置２５に巻き取られているが、連続紙ＳのＺ折り部分Ｓｚの未定着画像領域が表面に露呈することはないので、未定着画像が連続紙Ｓの正常な回収部分を汚すという懸念はほとんどない。また、回収された連続紙Ｓから不良領域を排除する場合には、連続紙回収装置２５から回収されたロール状の連続紙Ｓを取り外し、この連続紙Ｓを巻き出すと共に、連続紙Ｓの不良領域ＲＮＧについては切断などして排除するようにすればよい。 In this state, the Z - folded portion Sz of the continuous paper S is continuous because both folding rods 101 and 102 are still arranged at the respective folding positions A1 and B1 as shown in FIG. 6A. The Z-folded portion Sz of the paper S cannot be conveyed again.
Therefore, in this example, in order to eliminate the Z-folded portion Sz of the continuous paper S as a defective region, the operator sets the first folding rod 101 in the axial direction as shown in FIGS. 6 (a) and 6 (b). On the other hand (in this example, the direction C in FIG. 6B), the paper is pulled out to the lateral pull-out position A2 off the continuous paper S, and the second folding rod 102 is directed toward the initial position B0 . You can put it back. The first folding rod 101 pulled out to the pull-out position A 2 may be returned to the initial position A 0 .
In this state, both folding rods 101 and 102 are removed from the Z-folded portion Sz of the continuous paper S, and the Z-folded portion Sz of the continuous paper S is the continuous paper as shown in FIGS. When the transport of S is resumed, it passes through the fixing portion FP of the fixing device 60 while maintaining the Z-folded state. At this time, since the unfixed image remains folded inside the folded portion on the lower side of the Z-folded portion Sz of the continuous paper S, the heating condition is changed when passing through the fixed portion FP of the fixing device 60. Even if the unprepared state is still unprepared compared to the fixable condition (for example, the target temperature of the heating condition has not been reached), the unfixed image region of the Z-folded portion Sz of the continuous paper S exerts an adhesive action. The Z-folded portion Sz of the continuous paper S passes through the fuser 60 in a substantially unchanged state. Then, as shown in FIG. 7C, the Z-folded portion Sz of the continuous paper S is taken up by the continuous paper recovery device 25 as a defective region R NG and recovered.
Therefore, in this example, the Z-folded portion Sz of the continuous paper S is wound around the continuous paper recovery device 25 as a defective region R NG , but the unfixed image region of the Z-folded portion Sz of the continuous paper S is on the surface. Since it is not exposed, there is almost no concern that the unfixed image will contaminate the normal recovery portion of the continuous paper S. Further, when removing the defective region from the collected continuous paper S, the rolled continuous paper S collected from the continuous paper collecting device 25 is removed, the continuous paper S is unwound, and the continuous paper S is defective. The region R NG may be removed by cutting or the like.

◎変形の形態
本実施の形態では、第１の折込みロッド１０１は連続紙Ｓの幅寸法よりも長い円柱棒であったが、必ずしもこれに限られるものではなく、例えば図８（ａ）（ｂ）に示すように、一対の分割ロッド１０１ａ，１０１ｂにて構成し、連続紙ＳのＺ折り部分Ｓｚを折り込んだ後に、連続紙Ｓの幅方向両側から一対の分割ロッド１０１ａ，１０１ｂを夫々引き抜くようにしてもよい。
また、本例では、排除機構１００は手動操作することを前提とした機構であるが、例えば第１の折込みロッド１０１は手動操作とし、第２の折込みロッド１０２については自動操作可能に構成しても差し支えない。 ◎ Deformation Form In the present embodiment, the first folding rod 101 is a cylindrical rod longer than the width dimension of the continuous paper S, but the present invention is not necessarily limited to this, and for example, FIGS. 8 (a) and 8 (b). ), The pair of split rods 101a and 101b are formed, and after the Z-folded portion Sz of the continuous paper S is folded, the pair of split rods 101a and 101b are pulled out from both sides of the continuous paper S in the width direction. You may do it.
Further, in this example, the exclusion mechanism 100 is a mechanism premised on manual operation, but for example, the first folding rod 101 is manually operated, and the second folding rod 102 is configured to be automatically operable. There is no problem.

◎実施の形態２
図９は実施の形態２に係る画像形成装置の排除機構周りの構成を示す説明図である。
同図において、排除機構１００の基本的構成は、実施の形態１と略同様であるが、実施の形態１と異なり、第１の折込みロッド１０１、第２の折込みロッド１０２に加えて、連続紙ＳのＺ折り部分Ｓｚのうち、定着器６０寄りの幅方向両側に針無綴じ具１２０を配置したものである。尚、実施の形態１と同様な構成要素については実施の形態１と同様な符号を付してここではその詳細な説明を省略する。
ここで、針無綴じ具１２０は綴じるための針を用いずに、圧着又は綴じるための折込み片を連続紙Ｓ上に作製して綴じるものであって、通常の作像モードでは連続紙Ｓの搬送経路から側方に退避しており、排除機構１００による排除処理時には、図１０（ａ）に示すように、連続紙Ｓの幅方向の端部付近まで移動した後、連続紙ＳのＺ折り部分Ｓｚの幅方向両端付近のうち第２の折込みロッド１０２の折込み位置Ｂ１の近傍に位置する下側の折
込み部分を圧着若しくは折込み綴じにて接着し、この針無綴じ具１２０による接着処理が完了すると、予め決められた初期位置Ｂ０に復帰する。 ◎ Embodiment 2
FIG. 9 is an explanatory diagram showing a configuration around an exclusion mechanism of the image forming apparatus according to the second embodiment.
In the figure, the basic configuration of the exclusion mechanism 100 is substantially the same as that of the first embodiment, but unlike the first embodiment, in addition to the first folding rod 101 and the second folding rod 102, continuous paper is used. Of the Z-folded portions Sz of S, needle-less binding tools 120 are arranged on both sides in the width direction near the fuser 60. The components similar to those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and detailed description thereof will be omitted here.
Here, the needle-less binding tool 120 is for producing and binding a folded piece for crimping or binding on continuous paper S without using a needle for binding, and in a normal image forming mode, the continuous paper S is used. It is retracted laterally from the transport path, and at the time of exclusion processing by the exclusion mechanism 100, as shown in FIG. 10A, after moving to the vicinity of the end portion in the width direction of the continuous paper S, the continuous paper S is Z-folded. The lower folding portion located near the folding position B1 of the second folding rod 102 in the vicinity of both ends in the width direction of the partial Sz is bonded by crimping or folding binding, and the bonding process by the needleless binding tool 120 is performed. When completed, it returns to the predetermined initial position B 0 .

本実施の形態では、図１０（ｂ）及び図１１（ａ）（ｂ）に示すように、連続紙ＳのＺ折り部分Ｓｚの定着器６０寄りが針無綴じ具１２０により針無綴じ（例えば圧着綴じ）１２１で綴じられているため、連続紙Ｓの搬送を再開するときに、連続紙ＳのＺ折り部分Ｓｚが定着器６０を通過したとしても、針無綴じ１２１の存在によってＺ折り部分Ｓｚがばらけることはなく、扁平の状態を保つ。このため、連続紙ＳのＺ折り部分Ｓｚは不良領域ＲＮＧとして扁平状態を保って連続紙回収装置２５に回収される。
また、本実施の形態では、連続紙ＳのＺ折り部分Ｓｚを、連続紙回収装置２５に回収後に不良領域ＲＮＧとして排除する方式を採用しているが、本例では、針無綴じ具１２０の圧着綴じ１２１により連続紙ＳのＺ折り部分Ｓｚがばらけることを回避するようにしたため、例えば図１１（ｃ）に示すように、連続紙ＳのＺ折り部分Ｓｚが定着器６０を通過する前に、圧着綴じ１２１を残すように、Ｚ折り部分Ｓｚのうち実質的に不要な領域（未定着画像を折り込んだ領域から圧着綴じ１２１箇所を除いた領域に相当）を切断除去するという排除処理を行っても差し支えない。このようにすれば、連続紙回収装置２５に回収した連続紙Ｓから不良領域ＲＮＧを事後に探し出す必要は回避される。 In the present embodiment, as shown in FIGS. 10 (b) and 11 (a) and (b), the Z-folded portion Sz of the continuous paper S near the fuser 60 is needle-free bound by the needle-free binding tool 120 (for example,). Since it is bound by the crimp binding) 121, even if the Z-folded portion Sz of the continuous paper S passes through the fuser 60 when the transport of the continuous paper S is restarted, the Z-folded portion due to the presence of the needleless binding 121 Sz does not disperse and remains flat. Therefore, the Z-folded portion Sz of the continuous paper S is collected in the continuous paper recovery device 25 while maintaining a flat state as a defective region R NG .
Further, in the present embodiment, a method is adopted in which the Z-folded portion Sz of the continuous paper S is removed as a defective region RNG after being collected by the continuous paper collecting device 25, but in this example, the needleless binding tool 120 is adopted. In order to prevent the Z-folded portion Sz of the continuous paper S from being loosened by the crimp binding 121, for example, as shown in FIG. 11C, the Z-folded portion Sz of the continuous paper S passes through the fuser 60. Before, the exclusion process of cutting and removing a substantially unnecessary region of the Z-folded portion Sz (corresponding to the region where the unfixed image is folded and excluding the crimp binding 121 portion) so as to leave the crimp binding 121. You can do it. By doing so, it is possible to avoid the need to search for the defective region RNG after the fact from the continuous paper S collected by the continuous paper recovery device 25.

◎実施の形態３
図１２は実施の形態３に係る画像形成装置の排除機構周りの構成を示す説明図である。
同図において、排除機構１００の基本的構成は、実施の形態１と略同様であるが、実施の形態１と異なり、第１の折込みロッド１０１、第２の折込みロッド１０２に加えて、二次転写部位ＴＰと定着部位ＦＰとの間に位置する連続紙Ｓの未定着画像領域が検出可能な検出器１３０を配設したものである。尚、実施の形態１と同様な構成要素については実施の形態１と同様な符号を付してここではその詳細な説明を省略する。
本例では、検出器１３０は、連続紙Ｓの搬送経路２６のうち二次転写部位ＴＰよりも連続紙Ｓの搬送方向下流側で、できる限り二次転写部位ＴＰ寄りに設置され、例えば連続紙Ｓの幅方向に沿って延びるラインセンサにて構成され、図１３（ａ）に示すように、二次転写部位ＴＰで転写された連続紙Ｓの未定着画像領域ＲＴを検出するものである。 ◎ Embodiment 3
FIG. 12 is an explanatory diagram showing a configuration around an exclusion mechanism of the image forming apparatus according to the third embodiment.
In the figure, the basic configuration of the exclusion mechanism 100 is substantially the same as that of the first embodiment, but unlike the first embodiment, in addition to the first folding rod 101 and the second folding rod 102, the secondary is secondary. The detector 130 is provided so that the unfixed image region of the continuous paper S located between the transfer site TP and the fixing site FP can be detected. The components similar to those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and detailed description thereof will be omitted here.
In this example, the detector 130 is installed on the downstream side of the transport path 26 of the continuous paper S in the transport direction of the continuous paper S, as close to the secondary transfer site TP as possible, for example, the continuous paper. It is composed of a line sensor extending along the width direction of S, and as shown in FIG. 13A, detects the unfixed image region RT of the continuous paper S transferred by the secondary transfer site TP. ..

更に、本例では、制御装置１１０は、検出器１３０の検出結果に基づいて二次転写部位ＴＰと定着部位ＦＰとの間に位置する連続紙Ｓの未定着画像領域ＲＴを検出し、未定着画像領域ＲＴの存在する連続紙Ｓ部分だけを不良領域ＲＮＧとして排除するように、第１の折込みロッド１０１を連続紙Ｓの搬送方向を含む方向（例えば水平方向であるＤ方向）に移動可能とし、未定着画像領域ＲＴのうち連続紙Ｓの搬送方向略中央付近に第１の折込みロッド１０１を移動させて連続紙Ｓを折込み、この状態で、第２の折込みロッド１０２による連続紙Ｓの折込みを行うようにしたものである。 Further, in this example, the control device 110 detects the unfixed image region RT of the continuous paper S located between the secondary transfer site TP and the fixing site FP based on the detection result of the detector 130, and is undecided. The first folding rod 101 is set in the direction including the transport direction of the continuous paper S (for example, the D direction which is the horizontal direction) so that only the continuous paper S portion where the landing image region RT exists is excluded as the defective region NG . The first folding rod 101 is moved to the vicinity of the center of the unfixed image area RT in the transport direction to fold the continuous paper S, and in this state, the continuous paper S is continuously moved by the second folding rod 102. The paper S is folded.

今、画像形成装置の作像中に連続紙Ｓの搬送が緊急に停止したときに、図１３（ａ）に示すように、二次転写部位ＴＰと定着部位ＦＰとの間で未定着画像領域ＲＴが定着部位ＦＰ寄りに偏って存在していると仮定すると、制御装置１１０は検出器１３０からの検出信号に基づいて未定着画像領域ＲＴを判別し、この判別結果から、第１の折込みロッド１０１のＤ方向への移動スパンｈを算出し、第１の折込みロッド１０１、第２の折込みロッド１０２による折込み動作が実施される。
図１３（ｂ）に示すように、第１の折込みロッド１０１の初期位置Ａ０からの移動スパンｈとしては、未定着画像領域ＲＴのうち連続紙Ｓの搬送方向略中央付近になるように算出し、算出した位置Ａ３に第１の折込みロッド１０１を自動的に移動させ、しかる後、図１３（ｃ）に示すように、作業者が鉛直方向下方（Ａ方向）に向けて第１の折込みロッド１０１を折込み位置Ａ１まで移動させる。この後、作業者は、図１３（ｄ）に示すように、第２の折込みロッド１０２を初期位置Ｂ０から折込み位置Ｂ１まで移動させるようにすればよい。この結果、第１の折込みロッド１０１の折込み位置Ａ１（図１３（ｂ）矢印Ｄ方向Ａ３位置）と、第２の折込みロッド１０２の折込み位置Ｂ１との位置関係によって、連続紙ＳのＺ折り部分Ｓｚが不良領域ＲＮＧとして折り込まれる。
本例では、第１の折込みロッド１０１のＤ方向での位置（Ａ３）が変化することから、連続紙ＳのＺ折り部分Ｓｚについて実質的な未定着画像領域ＲＴに合わせて折り込むことが可能であり、連続紙Ｓの不良領域ＲＮＧとして必要最小限の範囲で連続紙ＳのＺ折り部分Ｓｚを折り込むことができる。 Now, when the transport of the continuous paper S is urgently stopped during the image formation of the image forming apparatus, as shown in FIG. 13 (a), the unfixed image region between the secondary transfer site TP and the fixing site FP. Assuming that the RT is biased toward the fixing portion FP, the control device 110 discriminates the unfixed image region RT based on the detection signal from the detector 130, and from this discrimination result, the first The movement span h of the folding rod 101 in the D direction is calculated, and the folding operation by the first folding rod 101 and the second folding rod 102 is performed.
As shown in FIG. 13B, the movement span h of the first folding rod 101 from the initial position A0 is set to be substantially in the center of the unfixed image region RT in the transport direction of the continuous paper S. The first folding rod 101 is automatically moved to the calculated position A3 , and then, as shown in FIG. 13 (c), the operator moves the first folding rod 101 downward in the vertical direction (A direction). The folding rod 101 is moved to the folding position A1. After that, as shown in FIG. 13D, the operator may move the second folding rod 102 from the initial position B 0 to the folding position B 1 . As a result, the continuous paper S is formed by the positional relationship between the folding position A 1 of the first folding rod 101 (the position A 3 in the arrow D direction in FIG. 13B) and the folding position B 1 of the second folding rod 102. The Z-folded portion Sz is folded as a defective region R NG .
In this example, since the position (A3) of the first folding rod 101 in the D direction changes, it is possible to fold the Z-folded portion Sz of the continuous paper S in accordance with the substantially unfixed image region RT . It is possible, and the Z-folded portion Sz of the continuous paper S can be folded within the minimum necessary range as the defective region R NG of the continuous paper S.

１…搬送部，１ａ…供給部，１ｂ…回収部，２…作像部，２ａ…像保持体，２ｂ…転写部，３…定着部，４…排除機構，５…第１の折込み部材，６…第２の折込み部材，７…接着手段，８…検出器，Ｓ…記録材 1 ... transport unit, 1a ... supply unit, 1b ... recovery unit, 2 ... image forming unit, 2a ... image holder, 2b ... transfer unit, 3 ... fixing unit, 4 ... exclusion mechanism, 5 ... first folding member, 6 ... Second folding member, 7 ... Adhesive means, 8 ... Detector, S ... Recording material

Claims (6)

連続する記録材を搬送する搬送部と、
前記記録材に画像を作製する作像部と、
前記記録材上に作製された画像を定着する定着部と、
前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、
前記排除機構は、前記作像部と前記定着部との間に設けられ、前記記録材の搬送が作像途中で停止されたときに、前記記録材の搬送方向に交差する方向に向かって当該記録材を折り込む第１の折込み部材と、前記第１の折込み部材で折り込まれた記録材を前記記録材の搬送方向に向かって折り込む第２の折込み部材と、を有することを特徴とする画像形成装置。 A transport unit that transports continuous recording material,
An image forming unit that creates an image on the recording material,
A fixing portion for fixing an image created on the recording material, and a fixing portion.
When the transport of the recording material is stopped in the middle of image formation, the recording material portion where the unfixed image before passing through the fixing portion is retained can be folded so that the image is inside and can be eliminated as a defective region. Equipped with an exclusion mechanism,
The exclusion mechanism is provided between the image forming portion and the fixing portion, and when the transport of the recording material is stopped in the middle of image formation, the exclusion mechanism is directed toward a direction intersecting the transport direction of the recording material. An image forming characterized by having a first folding member for folding the recording material and a second folding member for folding the recording material folded by the first folding member in the transport direction of the recording material. Device. 連続する記録材を搬送する搬送部と、
前記記録材に画像を作製する作像部と、
前記記録材上に作製された画像を定着する定着部と、
前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、
前記排除機構は、折り込んだ記録材部分の少なくとも前記定着部側を接着する接着手段を有することを特徴とする画像形成装置。 A transport unit that transports continuous recording material,
An image forming unit that creates an image on the recording material,
A fixing portion for fixing an image created on the recording material, and a fixing portion.
When the transport of the recording material is stopped in the middle of image formation, the recording material portion where the unfixed image before passing through the fixing portion is retained can be folded so that the image is inside and can be eliminated as a defective region. Equipped with an exclusion mechanism,
The exclusion mechanism is an image forming apparatus comprising an adhesive means for adhering at least the fixing portion side of the folded recording material portion. 請求項２に記載の画像形成装置において、
前記定着部は熱溶融性の作像材料による画像を加熱定着するものであり、
前記接着手段は未定着画像の作像材料を前記定着部にて接着させるものであることを特徴とする画像形成装置。 In the image forming apparatus according to claim 2 ,
The fixing portion heats and fixes an image made of a heat-meltable image-forming material.
The adhesive means is an image forming apparatus for adhering an image forming material of an unfixed image at the fixing portion. 請求項２に記載の画像形成装置において、
前記接着手段は針無綴じ具にて構成され、折り込んだ記録材部分の定着部側を針無綴じすることで接着することを特徴とする画像形成装置。 In the image forming apparatus according to claim 2 ,
The adhesive means is composed of a needle-free binding tool, and is an image forming apparatus characterized in that the fixed portion side of the folded recording material portion is bonded by needle-free binding. 連続する記録材を搬送する搬送部と、
前記記録材に画像を作製する作像部と、
前記記録材上に作製された画像を定着する定着部と、
前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を前記画像が内側になるように折り込んで不良領域として排除可能とする排除機構と、を備え、
前記排除機構は折り込んだ記録材部分を前記定着部を通過させた後、回収した記録材から不良領域として排除することを特徴とする画像形成装置。 A transport unit that transports continuous recording material,
An image forming unit that creates an image on the recording material,
A fixing portion for fixing an image created on the recording material, and a fixing portion.
When the transport of the recording material is stopped in the middle of image formation, the recording material portion where the unfixed image before passing through the fixing portion is retained can be folded so that the image is inside and can be eliminated as a defective region. Equipped with an exclusion mechanism,
The exclusion mechanism is an image forming apparatus characterized in that the folded recording material portion is passed through the fixing portion and then removed as a defective region from the collected recording material. 連続する記録材を搬送する搬送部と、
前記記録材に画像を作製する作像部と、
前記記録材上に作製された画像を定着する定着部と、
前記記録材の搬送が作像途中で停止されたときに、前記定着部通過前の未定着画像が保持された記録材部分を、前記画像が内側になり且つ前記記録材の搬送方向に沿うように折り込んで不良領域として排除可能とする排除機構と、を備えることを特徴とする画像形成装置。 A transport unit that transports continuous recording material,
An image forming unit that creates an image on the recording material,
A fixing portion for fixing an image created on the recording material, and a fixing portion.
When the transport of the recording material is stopped in the middle of image formation, the recording material portion where the unfixed image before passing through the fixing portion is held so that the image is inside and along the transport direction of the recording material. An image forming apparatus including an exclusion mechanism that can be folded into a defective region and can be eliminated as a defective region.
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