JP6408782B2 - Recording apparatus and recording method - Google Patents

Description

  The present invention relates to a recording apparatus and a fixing method of the apparatus, and more particularly to a recording apparatus and a recording method for performing recording according to, for example, an ink jet method.

  In an ink jet recording apparatus that records an image by discharging ink onto a recording medium and fixes the image, a recording stop process for stopping the recording operation is important. The recording stop process is necessary during user maintenance or when a jam occurs. When recording is stopped, the recording medium after recording and before fixing is nipped by the conveying roller in the conveying path for a certain period of time, and the ink ejected on the surface of the recording medium is divided between the nipped part and the other part. A color difference occurs due to the difference in the dry state. This color difference becomes visible as degradation in image quality. Once this color difference occurs, even if this image is fixed later, it will not be improved, and this will cause the quality of the printed product to deteriorate.

  Japanese Patent Application Laid-Open No. 2004-228561 temporarily saves a recording medium in which a jam that has accumulated in the recording medium conveyance path when a jam occurs and re-feeds the recording medium to the conveyance path after the jam processing is completed. Discloses an image forming apparatus including a circulation conveyance means for conveying the image to the image forming apparatus. According to the cited document 1, a recording medium in which a jam does not occur is temporarily discharged out of the conveyance path, temporarily stored in a predetermined place, and after the jam processing is completed, the sheet is re-fed to the conveyance path and the image is supplied. Transport to forming part. Therefore, when a jam occurs, the user only has to remove the recording medium causing the jam and then restart the operation of the image forming apparatus. As a result, most of the other recording media are re-fed to the image forming unit by the circulation conveyance unit and reused.

  In addition, the image forming apparatus disclosed in Patent Document 2 is configured to automatically release and return the nip between the heating unit of the fixing unit and the pressure roller by driving a cam when a jam occurs. I have.

JP 2001-253591 A JP 2010-139732 A

  However, in the configuration disclosed in Patent Document 1, it is necessary to separately provide a retreating conveyance path in addition to a normal conveyance path, which causes a problem that the apparatus size is increased and the cost of the apparatus is increased. In the configuration disclosed in Patent Document 2, the nip of the fixing unit can be released. However, since the recording medium nipped in the conveyance path after recording and before fixing remains nipped, a color difference still occurs. This leads to output of a recorded image with degraded quality.

  The present invention has been made in view of the above-described conventional example, and appropriately processes a recording medium nipped in a conveyance path after recording and before fixing by a recording stop process without increasing the size of the apparatus, thereby obtaining a high-quality image. An object of the present invention is to provide a recording apparatus and a recording method capable of outputting the above.

  In order to achieve the above object, the recording apparatus of the present invention has the following configuration.

That is, downstream a plurality of conveying roller pairs for conveying in a nip state sandwiching the recording medium is a b Lumpur like continuous sheet, a recording means for recording an image on a recording medium, relates conveyance direction of the recording medium from the recording means Cutting means for cutting a continuous sheet recorded by the recording means, and fixing an image on a recording medium arranged downstream from the cutting means in the transport direction and recorded by the recording means A conveying path on which the plurality of pairs of conveying rollers are arranged, the first conveying path arranged in the horizontal direction, and an angle with respect to the first conveying path. A recording apparatus including a second conveyance path, wherein when the recording by the recording means is interrupted, recording is performed by the recording means in the first conveyance path, and an image is fixed by the fixing means. The pair of transport rollers that sandwich the unrecorded recording medium cancels the nip state, and recording is performed by the recording unit in the second transport path, and an image is not fixed by the fixing unit. a is, wherein the said pair of conveying rollers for pinching the sheet was cut by cutting means characterized in that it does not release the nipping state.

Also, look at the present invention from another aspect, a plurality of conveying roller pairs for conveying in a nip state sandwiching the recording medium is a b Lumpur like continuous sheet, a recording means for recording an image on a recording medium, the recording A cutting unit that cuts a continuous sheet recorded by the recording unit, and is arranged downstream of the cutting unit by the recording unit, and is recorded by the recording unit. Fixing means for fixing the image of the recording medium subjected to the above, a conveyance path on which the plurality of conveyance roller pairs are arranged is a first conveyance path arranged in a horizontal direction, and the first conveyance path And a second transport path arranged at an angle with the recording apparatus, wherein when recording by the recording means is interrupted, recording is performed by the recording means in the first transport path. Made In addition, the pair of conveying rollers that sandwich the recording medium on which the image is not fixed by the fixing unit cancels the nip state, and recording is performed by the recording unit in the second conveying path, and the fixing unit The recording method has a recording method in which the image is not fixed on the recording medium, and the pair of conveying rollers that sandwich the sheet cut by the cutting unit does not release the nip state.

  Therefore, according to the present invention, even if the recording is stopped during the recording operation, the nip state of at least a part of the plurality of conveying roller pairs that sandwich the recording medium that has been recorded and includes the image before fixing is released. Can do. As a result, it is possible to reduce the occurrence of defective images due to the occurrence of color difference before fixing without increasing the size of the apparatus.

  Further, for example, a recording medium including a defective image can be distinguished from a properly processed recording medium and discharged.

1 is a schematic sectional side view showing an internal configuration of an ink jet recording apparatus which is a typical embodiment of the present invention. FIG. 2 is a diagram for explaining an operation during single-sided recording in the recording apparatus shown in FIG. 1. FIG. 2 is a diagram for explaining an operation during double-sided recording in the recording apparatus shown in FIG. 1. 6 is a diagram showing a nip releasing configuration in a recording stop process during surface recording according to Embodiment 1. FIG. 6 is a diagram showing a nip releasing configuration in a recording stop process during surface recording according to Embodiment 2. FIG. FIG. 10 is a diagram illustrating a nip release configuration in a recording stop process during back surface recording according to a third embodiment.

  Hereinafter, preferred embodiments of the present invention will be described more specifically and in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the already demonstrated part and duplication description is abbreviate | omitted.

  In this specification, “recording” (sometimes referred to as “printing”) is not limited to the case of forming significant information such as characters and graphics, but may be significant. It also represents the case where an image, a pattern, a pattern, etc. are widely formed on a recording medium, or the medium is processed, regardless of whether it is manifested so that humans can perceive it visually. .

  “Recording medium” refers not only to paper used in general recording apparatuses but also widely to cloth, plastic film, metal plate, glass, ceramics, wood, leather, and the like that can accept ink. Shall.

  Further, “ink” (sometimes referred to as “liquid”) should be interpreted widely as in the definition of “recording (printing)”. Therefore, by being applied on the recording medium, it is used for formation of images, patterns, patterns, etc., processing of the recording medium, or ink processing (for example, solidification or insolubilization of colorant in the ink applied to the recording medium). It shall represent a liquid that can be made.

  Furthermore, unless otherwise specified, the “nozzle” collectively refers to an ejection port or a liquid channel communicating with the ejection port and an element that generates energy used for ink ejection.

  An element substrate (head substrate) for a recording head to be used below does not indicate a simple substrate made of a silicon semiconductor but indicates a configuration in which each element, wiring, and the like are provided.

  Further, the term “on the substrate” means not only the element substrate but also the surface of the element substrate and the inside of the element substrate near the surface. In addition, the term “built-in” as used in the present invention is not a term indicating that each individual element is simply arranged separately on the surface of the substrate, but each element is manufactured in a semiconductor circuit. It shows that it is integrally formed and manufactured on an element plate by a process or the like.

  Next, examples of the ink jet recording apparatus will be described. This recording apparatus uses a continuous sheet (recording medium) wound in a roll shape, and is a high-speed line printer that supports both single-sided recording and double-sided recording. For example, it is suitable for a large number of print fields in a print laboratory or the like.

  FIG. 1 is a side sectional view showing a schematic internal configuration of an ink jet recording apparatus (hereinafter referred to as a recording apparatus) which is a typical embodiment of the present invention. The interior of the apparatus is roughly divided into a sheet supply unit 1, a decurling unit 2, a skew correction unit 3, a recording unit 4, a cleaning unit (not shown), an inspection unit 5, a cutter unit 6, an information recording unit 7, a fixing unit 8, and a sheet. It is divided into a winding unit 9, a discharge conveyance unit 10, a sorter unit 11, a discharge tray 12, a control unit 13, and the like. A sheet is conveyed by a conveyance mechanism including a roller pair and a belt along a sheet conveyance path indicated by a solid line in the drawing, and is processed in each unit.

  The sheet supply unit 1 is a unit that stores and supplies a continuous sheet wound in a roll shape. The sheet supply unit 1 can store two rolls R <b> 1 and R <b> 2, and is configured to selectively pull out and supply a sheet. The number of rolls that can be stored is not limited to two, and one or three or more rolls may be stored. The decurling unit 2 is a unit that reduces curling (warping) of the sheet supplied from the sheet supply unit 1. In the decurling unit 2, curling is reduced by using two pinch rollers for one driving roller and curving the sheet so as to give a curl in the opposite direction of curling. The skew correction unit 3 is a unit that corrects skew (inclination with respect to the original traveling direction) of the sheet that has passed through the decurling unit 2. The sheet skew is corrected by pressing the sheet end on the reference side against the guide member.

  The recording unit 4 is a unit that forms an image on the sheet by the recording head unit 14 with respect to the conveyed sheet. The recording unit 4 also includes a plurality of conveyance rollers that convey the sheet. The recording head unit 14 has a full line recording head (inkjet recording head) in which an inkjet nozzle row is formed in a range that covers the maximum width of a sheet that is assumed to be used. In the recording head unit 14, a plurality of recording heads are arranged in parallel along the sheet conveyance direction. In this embodiment, there are four recording heads corresponding to four colors of K (black), C (cyan), M (magenta), and Y (yellow). The arrangement order of the recording heads is K, C, M, Y from the upstream side of the sheet conveyance. The number of ink colors and the number of recording heads are not limited to four. For example, a configuration having seven recording heads corresponding to seven colors of C (cyan), M (magenta), Y (yellow), LC (light cyan), LM (light magenta), G (gray), and K (black). But it ’s okay.

  As the ink jet method, a method using a heating element, a method using a piezo element, a method using an electrostatic element, a method using a MEMS element, or the like can be adopted. The ink of each color is supplied from the ink tank to the recording head unit 14 via the ink tube.

  The inspection unit 5 is a unit that optically reads the inspection pattern or image recorded on the sheet by the recording unit 4 and inspects the nozzle state of the recording head, the sheet conveyance state, the image position, and the like. The inspection unit 5 includes a scanner unit that actually reads an image and generates an image data, and an image analysis unit that analyzes the read image and returns an analysis result to the recording unit 4. The inspection unit 5 is a CCD line sensor, and the sensors are arranged in a direction perpendicular to the sheet conveyance direction.

  The cutter unit 6 is a unit including a mechanical cutter that cuts a recording medium after recording into a predetermined length. The cutter unit 6 also includes a plurality of conveying rollers for sending the recording medium to the next process. The information recording unit 7 is a unit that records recording information such as a serial number and date of recording on the back surface of the cut recording medium. The fixing unit 8 is a unit that heats the recording medium recorded by the recording unit 4 and dries the applied ink in a short time. The fixing unit 8 also includes a conveyance belt and a conveyance roller for sending the recording medium to the next process.

  The sheet take-up unit 9 is a unit that temporarily takes up a recording medium such as continuous roll paper on which surface recording has been completed when performing double-sided recording. The sheet winding unit 9 includes a rotating winding drum for winding the recording medium. A recording medium such as continuous roll paper that has been subjected to surface recording and has not been cut is temporarily wound around a winding drum. After the winding is completed, the winding drum rotates in the reverse direction, and the wound recording medium is supplied to the decurling unit 2 and sent to the recording unit 4. Since the recording medium is reversed, the recording unit 4 can perform recording on the back surface. More specific operation of double-sided recording will be described later.

  The discharge conveyance unit 10 is a unit for conveying the recording medium cut by the cutter unit 6 and dried by the fixing unit 8 and delivering the recording medium to the sorter unit 11. The sorter unit 11 is a unit that distributes recorded recording media to different trays of the discharge tray 12 for each group as needed. The control unit 13 is a unit that controls each part of the recording apparatus. The control unit 13 includes a CPU, a memory, a controller 15 having various I / O interfaces, and a power source. The operation of the recording apparatus is controlled based on a command from an external device 16 such as the controller 15 or a host computer connected to the controller 15 via an I / O interface.

  As described above, the recording apparatus shown in FIG. 1 is compatible with both single-sided recording and double-sided recording. FIGS. 2 and 3 are respectively the operations during single-sided recording in the recording apparatus shown in FIG. FIG. 6 is a diagram for explaining an operation during double-sided recording.

  Next, the basic operation during recording will be described. Since the recording operation differs between single-sided recording and double-sided recording, each will be described.

  FIG. 2 is a diagram for explaining the operation during single-sided recording.

  In FIG. 2, the conveyance path from when the recording medium supplied from the sheet supply unit 1 is recorded and discharged to the discharge tray 12 is indicated by a bold line. The recording medium supplied from the sheet supply unit 1 and processed by the decurling unit 2 and the skew correction unit 3 is recorded on the surface by the recording unit 4. The recorded recording medium passes through the inspection unit 5 and is cut into predetermined unit lengths set in advance in the cutter unit 6. In the cut recording medium, recording information is recorded on the back surface of the recording medium by the information recording unit 7 as necessary. The cut recording medium is conveyed one by one to the fixing unit 8 and dried. Thereafter, the sheet is sequentially discharged and stacked on the discharge tray 12 of the sorter unit 11 via the discharge conveyance unit 10.

  FIG. 3 is a diagram for explaining the operation during double-sided recording.

  In double-sided recording, the back surface recording sequence is executed after the front surface recording sequence. In the first front surface recording sequence, the operation in each unit from the sheet supply unit 1 to the inspection unit 5 is the same as the one-side recording operation described above. However, the cutter unit 6 does not perform the cutting operation and is conveyed to the fixing unit 8 as a continuous recording medium. After the ink on the surface of the fixing unit 8 is dried, the recording medium is introduced not to the path toward the discharge conveyance unit 10 but to the path toward the sheet winding unit 9.

  The introduced recording medium is wound around the winding drum of the sheet winding unit 9 that rotates in the forward direction (counterclockwise in the drawing). In the recording unit 4, when all scheduled recording of the surface is completed, the rear end of the recording area of the continuous recording medium is cut by the cutter unit 6. With reference to the cut position, the continuous recording medium on the downstream side (recorded side) in the conveying direction is wound up to the recording medium rear end (cut position) by the sheet winding unit 9 through the fixing unit 8. On the other hand, the continuous recording medium upstream in the transport direction from the cut position is rewound onto the sheet supply unit 1 so that the leading end (cut position) of the recording medium does not remain in the decurling unit 2.

  After the front surface recording sequence, the recording operation is switched to the back surface recording sequence.

  The take-up drum of the sheet take-up unit 9 rotates in the opposite direction (clockwise direction in the drawing) to the time of take-up. The end of the wound recording medium (the trailing end of the recording medium at the time of winding becomes the leading end of the recording medium at the time of feeding) is fed into the decurling unit 2. The decurling unit 2 performs curl correction in the opposite direction. This is because the recording medium wound around the take-up drum is wound upside down from the roll in the sheet supply unit 1 and is curled in the opposite direction. Thereafter, the recording is performed on the back surface of the recording medium cut in the front surface recording sequence by the recording unit 4 through the skew correction unit 3. The recorded recording medium passes through the inspection unit 5 and is cut into predetermined unit lengths set in advance in the cutter unit 6. Since the recording medium cut at this time is recorded on both sides, recording by the information recording unit 7 is not performed. The cut recording media are conveyed one by one to the fixing unit 8, and are sequentially discharged and stacked on the discharge tray 12 of the sorter unit 11 via the discharge conveyance unit 10.

  Next, three examples of the recording stop process executed by the recording apparatus having the above-described configuration will be described.

  FIG. 4 is a diagram showing a nip release configuration in the recording stop process during surface recording according to the first embodiment. A plurality of conveyance roller pairs 50 provided in the conveyance path of the recording medium from the recording unit 4 to the fixing unit 8 shown in FIG. In FIG. 4, a portion indicated by an arrow indicates a pair of conveying rollers with a nip released.

  In response to receiving the recording stop signal from the operator, this recording apparatus stops the recording even during the recording operation. Then, for the conveyance roller pair 50 that nips (nips) the recording medium on which the image has been recorded and fixed, the control unit 13 determines the nip release of each conveyance roller pair 50 based on a predetermined condition, and releases the nip. To do. On the other hand, the image on the recording medium nipped by the conveying roller pair 50 that does not release the nip is handled as a defective image.

  The predetermined condition in this embodiment is whether the corresponding recording medium is a continuous recording medium or a cut recording medium.

  FIG. 4 shows an example in which recording is performed on a recording medium such as continuous roll paper and it is determined that all the conveyance roller pairs 50 are released from the nip. That is, since there is no recording medium in which the conveyance roller pair 50 is nipped, no defective image is generated. After the recording operation of the recording apparatus stops, the operator performs necessary maintenance work. Thereafter, when the operator gives an instruction to resume the recording operation, the recording apparatus resumes the recording in response to the instruction.

  As described above, during the maintenance work by the operator, if the recording medium after recording and before fixing is kept nipped by the roller in the conveyance path for a predetermined time or more, the recording medium of the recording medium is divided between the nipped part and the other part. A difference occurs in the dry state of the ink ejected on the surface. The difference becomes apparent as a color difference and causes image defects. Once this image defect occurs, even if a fixing operation is executed later by the fixing unit 8, it is not improved. In order to prevent this image defect, in this embodiment, the nips of all the conveying roller pairs 50 are released during recording on a continuous recording medium.

  Therefore, according to the embodiment described above, the recording medium recorded before the jam and released from the nip when the recording is resumed after the jam processing is conveyed to the fixing unit as it is, and is fixed to the color as expected and is appropriately printed. It can be discharged as a product.

  In addition, when the recording stop time of the recording medium that has been released from the nip becomes long, the recording medium may be curled depending on the posture of the recording medium in the conveyance path, and may not be suitable as a print product. is there. In order to avoid this, when a predetermined time or more has passed since the recording was stopped or the nip was released, all the images recorded on the recording medium before the fixing including the recording medium released from the nip were recorded. May be determined as a defective image.

  In addition, even when the recording medium located downstream of the fixing unit 8 on the downstream side of the conveyance path is stopped, the ink is already fixed and the color is stable. For example, the conveyance roller pair positioned between the fixing unit 8 and the sheet winding unit 9 shown in FIG. 4 may continue to nip even when recording is stopped.

  FIG. 5 is a diagram showing a nip releasing configuration in the recording stop process during surface recording according to the second embodiment. The second embodiment is different from the first embodiment in that the nip release of the pair of conveying rollers 50 ′ located immediately above the cutter 61 shown in FIG. 5 is not performed. In FIG. 5, the configuration other than the pair of conveyance rollers 50 'is the same as that in FIG.

  In this embodiment, an image recorded on a recording medium nipped by the conveyance roller pair 50 ′ that does not release the nip is regarded as a defective image. This is because, as described above, if the recording medium after recording and before fixing is kept nipped by the roller in the conveyance path for a certain period of time during the maintenance work by the operator, the surface of the recording medium is divided between the nipped part and the other part. A difference in the dry state of the ink ejected on the ink occurs. This is because the difference becomes apparent as a color difference and causes image defects.

  The location of the continuous recording medium being nipped can be specified by calculating from the recording start timing, the conveyance time, and the conveyance speed, for example.

  After the resumption of recording, the continuous recording medium 55 including the defective image location is conveyed downstream along the conveyance path together with the location to be another product, and is taken up by the sheet take-up unit 9. Then, recording is performed again on the back side of the continuous recording medium by the recording unit 4 at the time of back side recording. At this time, image recording is not performed on the back surface of the portion regarded as a defective image at the time of front surface recording at the time of back surface recording.

  A continuous recording medium including a defective image is cut at a predetermined unit length preset in the cutter unit 6 in the back surface recording process, and becomes a recording medium such as a regular cut sheet. At this time, the cut recording medium including the defective image is separated from a properly processed print product downstream in the conveyance path and is transferred to a specific tray (for example, the lowermost tray of the three discharge trays in FIG. 5). Discharge. Note that the specific tray that is discharged to discard the recording medium including the defective image may be provided separately from the three discharge trays of FIG.

  Therefore, according to the embodiment described above, a part of the plurality of conveying roller pairs is intentionally placed in the nip state, the image recorded at this position is specified, and the recording medium including the image of this part is cut. Thus, it is possible to discharge in a specific discharge tray. In this way, it is possible to reduce defects in the printed products discharged to the discharge tray 12.

  A recording medium such as continuous roll paper is cut for each predetermined unit length set in advance in the cutter unit 6 in the back surface recording process. In this embodiment, an example of a nip release configuration in a recording stop process by a jam when the jam occurrence location is downstream of the conveyance path from the fixing unit 8 will be described.

  FIG. 6 is a diagram showing a nip releasing configuration in the recording stop process during the back side recording according to the third embodiment. In FIG. 6, the portion indicated by the arrow indicates the conveyance roller pair that has been released from the nip, and the plurality of conveyance roller pairs 50 ′ positioned in the vertical conveyance path are not released from the nip state.

  The recording apparatus automatically stops the recording operation in response to an operator instruction or when a jam occurs. At this time, as shown in FIG. 6, the cut recording medium 58 further downstream in the transport path than the jammed portion 60 downstream in the transport path from the fixing unit 8 has completed both recording and fixing. Discharge as printed product.

  Then, with respect to the conveying roller pair 50 that nips the recording medium on which the image has been recorded and fixed, the control unit 13 determines whether to release the nip of each conveying roller pair 50 based on a predetermined condition as in the first embodiment. Release the nip. On the other hand, an image recorded on a recording medium nipped by the conveying roller pair 50 that does not release the nip is regarded as a defective image. The predetermined condition is the same as that described in the first embodiment.

  FIG. 6 shows an example in which it is determined that the recording operation is stopped during the back surface recording on the cut recording medium and the conveyance roller pair 50 is released from the nip while the conveyance roller pair 50 ′ is not released from the nip. As shown in FIG. 6, the conveyance roller pair 50 'has a vertical conveyance path. If the conveyance roller pair 50' is released from the nip, the cut recording medium falls from the conveyance path by its own weight. In order to prevent this, the conveying roller pair 50 'maintains the nip state.

  In the example shown in FIG. 6, after the recording operation of the recording apparatus is stopped, the operator removes the recording medium from which the jammed portion 60 has been cut from the apparatus. Thereafter, when the operator gives an instruction to resume the recording operation, the recording apparatus resumes the recording operation.

  The cut recording medium 56 at the position of the pair of transport rollers 50 whose transport path is horizontal and released from the nip is nipped again and transported to the fixing unit 8 as it is when the recording is resumed after the jam processing. Such a recording medium is fixed to an expected color and discharged as an appropriate printed product. On the other hand, an image recorded on a cut recording medium nipped by a pair of conveyance rollers 50 ′ that has a vertical conveying path and has not been released from the nip is regarded as a defective image, and the cut recording medium 55 including this image is regarded as a defective image. Is identified. The cut recording medium that is nipped can be identified by calculating from the conveyance time and the conveyance speed after recording, for example.

  The cut recording medium 55 including the defective image is also conveyed when the recording is resumed after the jam processing. However, this recording medium is discharged to a specific tray (for example, the lowermost tray of the three discharge trays in FIG. 6), for example, in a downstream of the conveyance path, distinguished from a properly recorded print product.

  Therefore, according to the embodiment described above, it is possible to prevent a print product including a defective image from being mixed into a properly recorded print product discharged to the discharge tray 12.

  Note that the cut recording medium 57 that is downstream of the conveyance path from the fixing unit 8 and upstream of the jammed portion 60 has already been nipped and has a stable tint even when recording is stopped. Even color difference does not occur. Therefore, the recording medium is discharged as it is appropriately processed.

4 recording unit, 8 fixing unit, 9 sheet winding unit, 13 control unit, 14 recording head unit,
50 conveying roller pair, 55 recording medium

Claims (7)

A plurality of conveyance roller pairs that convey in a nip state that sandwiches a recording medium that is a roll-shaped continuous sheet;
Recording means for recording an image on a recording medium;
A cutting unit arranged on the downstream side of the recording unit with respect to the conveyance direction of the recording medium, and for cutting a continuous sheet recorded by the recording unit;
A fixing unit arranged downstream of the cutting unit in the transport direction and fixing an image of a recording medium recorded by the recording unit;
The conveyance path on which the plurality of conveyance roller pairs are arranged includes a first conveyance path arranged in a horizontal direction and a second conveyance path arranged at an angle with respect to the first conveyance path. A recording device,
When the recording by the recording unit is interrupted, the conveyance roller pair that holds the recording medium on which the recording unit performs recording in the first conveyance path and the image is not fixed by the fixing unit. The nip state is canceled, and a recording medium on which recording is performed by the recording unit in the second transport path and an image is not fixed by the fixing unit, and the sheet cut by the cutting unit is sandwiched. The recording apparatus according to claim 1, wherein the conveying roller pair does not release the nip state. A plurality of discharge trays for discharging the sheets cut by the cutting means to the outside of the apparatus;
When the recording by the recording unit is interrupted, the sheet that is nipped between the pair of transport rollers in the second transport path is transferred to the pair of transport rollers in the first transport path among the plurality of discharge trays. The recording apparatus according to claim 1 , wherein the sheet released from the nip state is discharged to a tray different from a discharge tray from which the sheet is discharged. Said recording means recording apparatus according to claim 1 or 2, characterized in that it is possible to perform two-sided printing for recording an image on the first surface and the second surface of the recording medium. When the recording by the recording unit is interrupted, the pair of conveying rollers that hold the recording medium on which the image is recorded by the recording unit and the image is fixed by the fixing unit continue the nip state. the recording apparatus according to any one of claims 1 to 3, characterized in that. When a predetermined time elapses after an instruction to stop recording or the release of the nip state, an image on a recording medium in which recording is performed by the recording unit and an image is not fixed by the fixing unit is defective. the recording apparatus according to any one of claims 1 to 4, characterized by determining the image. It said recording means recording apparatus according to any one of claims 1 to 5, characterized in that it comprises an ink jet recording head covering the width of the recording medium. A plurality of conveying roller pairs that convey a recording medium that is a roll-shaped continuous sheet in a nip state, a recording unit that records an image on the recording medium, and a downstream side of the recording unit with respect to the conveyance direction of the recording medium. Cutting means for cutting a continuous sheet recorded by the recording means; and fixing means for fixing an image on a recording medium recorded by the recording means, arranged downstream from the cutting means in the conveying direction. The conveyance path in which the plurality of conveyance roller pairs are arranged is a first conveyance path arranged in a horizontal direction, and a second conveyance path arranged at an angle with respect to the first conveyance path A recording method for a recording apparatus, comprising:
When the recording by the recording unit is interrupted, the conveyance roller pair that holds the recording medium on which the recording unit performs recording in the first conveyance path and the image is not fixed by the fixing unit. The nip state is canceled, and a recording medium on which recording is performed by the recording unit in the second transport path and an image is not fixed by the fixing unit, and the sheet cut by the cutting unit is sandwiched. The recording method according to claim 1, wherein the conveying roller pair does not release the nip state.

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