JP2005112490A - Auxiliary device for exhausting recorded material, recording device, liquid injecting device, and method for exhausting recorded material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily pick up recorded materials left in the middle of a transfer path without significantly changing an existing structure. <P>SOLUTION: This auxiliary device 1 for exhausting recorded materials is equipped with a release structure 33 for making a transferring couple-drive roller 19b in a release condition by separating the roller 19b from a transferring drive roller 19a under a nip condition. The release structure 33 uses an autorelease condition actuated interlinking with an automatic gap conditioning mechanism automatically conditioning the gap between a recording head 13 and the recorded material P. This method for exhausting the recorded materials detects existence of remained recorded materials S in the middle of the transfer path by a primary detection means 31 and a secondary detection means 32, and actuates the release structure 33 of the transferring coupled-drive roller 19b based on the detected results. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  In the present invention, when a recording material placed on a feeding tray is fed toward a conveying roller located downstream by a nipping pressure feeding action by a feeding roller and a hopper, the recording material is placed in the middle of the conveying path. The present invention relates to a recording material discharge assisting device that facilitates discharging of the remaining recording material when the recording material remains, a recording device including the discharge assisting device, and a recording material discharging method.

  Furthermore, the present invention relates to a liquid ejecting apparatus such as an ink jet recording apparatus that performs recording (attaches liquid) on a recording material (liquid ejecting material) by ejecting (ejecting) a liquid such as ink from the head and the liquid. The present invention relates to a discharge auxiliary device for a liquid injection material provided in an injection device and a discharge method for a liquid injection material.

  Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that records ink on a recording material by discharging ink from the recording head. It is used to include a device for ejecting a liquid corresponding to the application from a liquid ejecting head corresponding to the recording head to a liquid ejecting material corresponding to a recording material and attaching the liquid to the liquid ejecting material.

  In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  Hereinafter, an ink jet printer will be described as an example of an ink jet recording apparatus or a liquid ejecting apparatus. Since conventional inkjet printers were designed on the assumption that printing is performed on plain papers of standard sizes such as A4 and B5 sizes and dedicated paper for inkjet printers, the thickness of the paper is considered to be almost constant, so A release structure is not employed for the driven roller for conveyance in the roller, and a nip state in which the roller is always in pressure contact with the driving roller for conveyance is maintained.

  However, recently, there are a wide variety of objects to be printed by inkjet printers, and the sizes, thicknesses, and types (materials) vary, and the range is extremely wide. Focusing on the thickness of the paper, the gap between the recording head and the paper also changes when the paper thickness changes greatly. Therefore, when printing is performed with this gap change as it is, high-accuracy print quality cannot be obtained. In order to solve this problem, an ink jet printer having a gap adjusting mechanism capable of adjusting the gap corresponding to the thickness of the paper has appeared.

  Further, when the thickness of the sheet increases, the pressure contact force between the transport driving roller and the transport driven roller also changes. Therefore, in the ink jet printer provided with the gap adjusting mechanism, the applicant of the present application has previously filed an application having a release structure capable of adjusting the position of the driven roller for conveyance, with the following Patent Document 1 as a prior art document. (Japanese Patent Application No. 2003-17508).

  On the other hand, when a sheet is fed from the automatic feeding device toward the conveyance roller, a conveyance trouble may occur in the middle of the conveyance path, and the sheet may remain. In this case, the user takes out the remaining paper, but recent ink jet printers are small and weighed, so that printing can be performed even on extremely small paper such as a business card size. Therefore, the distance between the feeding roller and the conveying roller tends to be short, and it is difficult to discharge the remaining paper.

JP 2002-192882 A

  Therefore, the present invention has been made in view of the problems of current inkjet printers in view of the existence of such background technology, and the release structure of the driven roller for conveyance is used to discharge the remaining recording material. Focusing on whether or not it can be done, it is possible to easily take out the recording material remaining at the user level without greatly changing the existing structure, a recording material discharge auxiliary device, a recording device equipped with the discharge auxiliary device, etc. It is another object of the present invention to provide a recording material discharge method.

In order to solve the above-described problem, the recording material discharge assisting device according to the first aspect of the present invention is configured such that a recording material placed on a feeding tray is nipped and fed by a feeding roller and a hopper. Therefore, when the recording material remains in the middle of the conveyance path when feeding toward the conveyance roller located downstream of the recording material, the recording material discharge assist for facilitating the discharge of the remaining recording material The discharge assisting device is provided with a release structure in which a conveyance driven roller in the conveyance roller is released from the conveyance drive roller in a nip state, and is in a release state. .
According to the first aspect of the present invention, the driven roller for conveyance that has always been in the nip state with respect to the drive roller for conveyance can be separated from the drive roller for conveyance, so that the remaining recording material can be easily taken out. become.

According to a second aspect of the present invention, there is provided a recording material discharge assisting apparatus according to the first aspect, wherein the release structure includes an automatic gap adjustment mechanism that automatically adjusts a gap between the recording head and the recording material. It uses an auto-release structure that operates in conjunction with it.
According to the second aspect of the present invention, since the existing auto-release structure can be used as it is for discharging the remaining recording material, the remaining coverage at the user level can be obtained without changing the structure. The recording material can be easily discharged.

According to a third aspect of the present invention, in the first or second aspect, the recording material discharge assisting device is configured such that the transport driven roller is one of the roller holders that rotates at a predetermined angle around a rotation fulcrum. The release structure is pivotally supported at the end, the release structure is a cam follower formed at the other end of the roller holder, and a push-up cam that contacts the cam follower and rotates about the release shaft Characterized in that the driven roller for conveyance can be moved in the separation direction against the urging force in the pressing direction that is always acting on the roller holder. It is.
According to the third aspect of the present invention, when the recording material remains in the middle of conveyance, the push cam is rotated by rotating the release shaft in a predetermined direction to gradually change the cam height. Then, the cam follower can be pushed down, and the follower roller for conveyance can be moved away to bring the cam follower into a released state. Therefore, a release structure can be realized with a very simple configuration.

The recording apparatus according to the fourth aspect of the present invention is a recording material in which a predetermined number of recording materials placed on a feeding tray are positioned on the uppermost surface by a nipping and feeding action by a feeding roller and a hopper. The recording material is brought into a recording position by an automatic feeding device that picks up and feeds the unit by number in order, and the nipped pressure feeding action of the fed recording material by the conveyance drive roller and the conveyance driven roller. A recording apparatus including a conveying roller that guides the recording apparatus, wherein the recording apparatus includes any one of first to third recording material discharge assisting devices. .
According to the fourth aspect of the present invention, it is easy to cue the remaining recording material, and if the existing auto release structure is used as it is, the structure is not basically changed.

  In the liquid ejecting apparatus according to the fifth aspect of the present invention, a predetermined number of liquid ejecting materials placed on the feeding tray are placed on the uppermost surface by the nipping and feeding action of the feeding roller and the hopper. Liquid feed jetting is performed by an automatic feeding device that picks up and feeds the liquid jetting material in units sequentially from the liquid jetting material, and a nipping-feeding action of the fed liquid jetting material by a driving drive roller and a driven driven roller. A liquid ejecting apparatus including a conveying roller for guiding a material to a recording position, wherein the liquid ejecting apparatus sandwiches a liquid ejecting material placed on a feeding tray between a feeding roller and a hopper. When feeding toward the conveyance roller located downstream by the pressure feeding action, if the liquid injection material remains in the middle of the conveyance path, the remaining liquid injection material can be easily discharged. Discharge supplement for liquid propellant And the discharge assisting device is provided with a release structure in which the conveying driven roller in the conveying roller is released from the conveying driving roller that is in the nip state. It is.

  According to a sixth aspect of the present invention, there is provided a method for discharging a recording material, wherein the recording material placed on a feeding tray is transported downstream by a nipping and feeding action by a feeding roller and a hopper. A recording material discharging method for discharging a recording material remaining in the middle of a conveying path to the outside when feeding the recording material, wherein the feeding roller and the recording material are in pressure contact with each other Primary detection means provided between the first nip point and a second nip point where the conveyance driving roller and the conveyance driven roller in the conveyance roller are in pressure contact with each other, and secondary detection provided near the downstream of the conveyance roller And the presence or absence of the recording material is detected, and when the primary detection means is ON and the secondary detection means is OFF, it is determined whether or not the feeding roller has rotated by a predetermined number of rotations. , When it has rotated the specified number of revolutions, It is characterized in that it has set up to start the discharge execution controller utilizing the release structure use driven roller.

  According to the sixth aspect of the present invention, the primary detection means is ON, and the secondary detection means is OFF, and the feeding roller delivers the recording material toward the conveying roller. Since it was determined that the recording material remained between the nip points due to the rotation by a feed amount sufficient for this, the discharge execution controller was started. Thus, the remaining recording material can be reliably discharged.

  According to a seventh aspect of the present invention, there is provided a method for discharging a recording material, wherein the recording material placed on a feeding tray is transported downstream by a nipping pressure feeding action between a feeding roller and a hopper. A recording material discharging method for discharging a recording material remaining in the middle of a conveying path to the outside when feeding the recording material, wherein the feeding roller and the recording material are in pressure contact with each other Primary detection means provided between the first nip point and a second nip point where the conveyance driving roller and the conveyance driven roller in the conveyance roller are in pressure contact with each other, and secondary detection provided near the downstream of the conveyance roller After the recording is finished when the primary detection means is ON and the secondary detection means is ON and the primary detection means and the secondary detection means are turned OFF, the predetermined number of steps and discharge are detected. With the roller rotated, restart In the case where the primary sensing means is turned ON, and is characterized in that it has set up to start the discharge execution controller utilizing the release structure of the transport driven roller.

  According to the seventh aspect of the present invention, when the primary detection means is ON and the secondary detection means is ON, it is confirmed that the recording material is normally conveyed. After the recording of the recording material is completed, when the primary detection unit is turned on again, it is determined that the recording material is in a multi-feed state, the discharge execution controller is activated, and the subsequent recording material is Therefore, it is possible to cope with the remaining of a plurality of recording materials.

  According to an eighth aspect of the present invention, in the sixth or seventh aspect, the discharge execution controller using the release structure of the transport driven roller activates an automatic gap adjustment mechanism. The release roller is released from the transport drive roller by operating the auto-release structure that is linked to the drive roller, and after the remaining recording material is taken out, the release state of the transport follower roller is released, and the transport drive roller is turned on again. The nip state is brought into pressure contact, and after the passage or remaining of the subsequent recording material is confirmed by the secondary detection means, the conveyance roller is rotated forward to discharge the recording material to the outside. It is what.

  According to the eighth aspect of the present invention, since the automatic release adjustment mechanism is activated to activate the automatic release structure, the remaining recording material is discharged without changing the configuration of the existing drive transmission mechanism and the like. Available to: In addition, for the remaining of a plurality of recording materials caused by double feeding, etc., the recording operation can be smoothly discharged by using the release operation of the conveying driven roller and the conveying force of the conveying roller in combination. ing.

  Hereinafter, a recording material discharge assisting apparatus according to the present invention and a recording apparatus which is an example of a liquid ejecting apparatus including the discharge assisting apparatus will be described. First, an ink jet printer is taken up as the best mode for carrying out a recording apparatus which is an example of the liquid ejecting apparatus of the present invention, and the outline of the entire configuration will be described with reference to the drawings.

  FIG. 1 is a side sectional view showing an outline of the internal structure of an ink jet printer showing a state in which a recording material is sandwiched between a transport drive roller and a transport driven roller and remains in the transport path. FIG. 2 is a side sectional view showing the outline of the internal structure of the ink jet printer showing a state where the conveyance driven roller is released. FIG. 3 is a side cross-sectional view showing an outline of the internal structure of the ink jet printer showing a state in which the recording material remains in the conveyance path in a state where the primary detection means is OFF and the secondary detection means is ON.

  The ink jet printer 100 includes a main component of a recording execution unit that is an example of a liquid ejection execution unit that performs recording on a recording material P (hereinafter also simply referred to as a sheet P) that is an example of a liquid ejection material. A carriage (not shown) that is supported by a carriage guide shaft so as to be able to reciprocate in the scanning direction (direction orthogonal to the paper surface in FIGS. 1 to 3) is provided. A recording head 13, which is an example of a liquid ejecting head that performs recording by ejecting (ejecting) ink, which is an example of liquid, onto the paper P is mounted on the carriage. An ink cartridge which is an example of a liquid cartridge is mounted on the carriage.

  A platen 28 that defines the gap between the head surface of the recording head 13 and the paper P is provided below the recording head 13 so as to face the recording head 13. An operation for conveying the paper P between the carriage and the platen 28 by a predetermined conveyance amount in the sub-scanning direction (left and right in FIGS. 1 to 3) orthogonal to the main scanning direction, and the recording head 13 in the main scanning direction. Recording is performed on the paper P by alternately repeating the operation of ejecting ink from the recording head 13 onto the paper P during one reciprocation.

  Next, the configuration of the ink jet printer 100 will be further described according to the conveyance path of the paper P. First, a feeding tray (not shown), which is an example of a liquid injection material stacking unit for stacking the paper P, is provided on the most upstream side in the transport direction. The feeding tray is provided with an edge guide (not shown) that contacts the side end surface of the paper P and guides smooth conveyance in the sub-scanning direction. With the rotation of the rotation shaft of the feeding roller 14, the hopper 16 rises at a predetermined timing and is pushed up toward the feeding roller 14 with respect to the paper P and the like on the feeding tray.

  The apparatus including the feeding tray, the feeding roller 14 and the hopper 16 is the automatic feeding apparatus 2 and feeds in order from the sheet P positioned on the uppermost surface as the feeding roller 14 rotates. The unit is picked up by the number of units by using the force of the retard roller 3 and the return lever 5 as an example of the separating action unit provided in the vicinity of the roller 14 and is sent downstream in the conveying direction.

  A primary detection means 31 for detecting the passage or residual of the paper P is provided downstream of the feeding roller 14, and downstream of the primary detection means 31 is a conveyance drive roller 19a and a conveyance driven roller 19b. A transporting roller 19 is provided. Among these, the driven roller 19b for conveyance is pivotally supported downstream of the roller holder 18 for the driven roller for conveyance, and the roller holder 18 is provided so as to be rotatable about the rotation shaft, and is not shown in the figure. Accordingly, the driven roller 19b is urged to rotate so that the nip is always in pressure contact with the driving roller 19a.

  The sheet P conveyed while being pinched by the conveying roller 19 is detected by the secondary detection means 32 provided in the vicinity of the downstream side of the conveying roller 19, and is detected at a recording position 26 below the recording head 13. Led. The primary detection means 31 and the secondary detection means 32 belong to a recording material detection means 30 which is an example of a liquid injection material detection means for detecting passage or remaining of the paper P.

  The sheet P guided to the recording position 26 performs desired recording over almost the entire recording surface of the sheet P by the operation of the carriage and the sheet P described above. The gap between the recording head 13 and the platen 28 provided opposite to the recording head 13 is an extremely important element in executing high-precision recording. The thickness of the paper P is reduced by an automatic gap adjustment mechanism (not shown). The gap can be automatically adjusted according to the change of the height.

  Disposed downstream of the recording head 13 is a discharge roller 20 that is an example of a liquid ejecting material discharge unit configured by a discharge drive roller 20a and a discharge jagged roller 20b. The sheet P is discharged onto a placement surface on a discharge stacker (not shown), which is an example of a liquid injection material receiving portion located further downstream.

  The discharging jagged roller 20b is a toothed roller having a plurality of teeth on the outer periphery thereof, and is supported by a roller holder for the discharging jagged roller so as to be freely rotatable. An auxiliary jagged roller 22 is provided upstream of the discharge jagged roller 20 b, and the paper P is pressed slightly downward by the auxiliary jagged roller 22. Further, the transport driven roller 19b is disposed at a position slightly downstream of the transport drive roller 19a, and the discharge serpentine roller 20b is disposed at a position slightly upstream of the discharge drive roller 20a. It is installed.

  With such a configuration, the sheet P is in a curved state commonly referred to as “back-sliding” which slightly protrudes downward between the conveying roller 19 and the discharging roller 20, and is applied to the recording head 13. The sheet P at the opposite position is pressed against the platen 28, so that the sheet P is prevented from being lifted and recording is executed normally. The auxiliary serrated roller 22 is constituted by a toothed roller like the discharge serrated roller 20b, and is pivotally supported by a roller holder for the auxiliary serrated roller.

[Example]
Next, the recording material discharge method according to the present invention will be described together with the operation mode, focusing on the configuration of the recording material discharge assisting device according to the present invention applied to the ink jet printer 100. To do. FIG. 4 is a side sectional view showing an example of the release structure of the conveyance driven roller, and FIG. 5 is a flowchart showing the operation mode at the start of feeding and the operation mode based on the detection information of the primary detection means. FIG. 6 is a flowchart showing an operation mode based on the detection information of the secondary detection unit and an operation mode based on the second detection information of the primary detection unit, and FIG. 7 shows a discharge execution controller using the release structure of the transport driven roller. It is a flowchart to show.

  In the recording material discharge assisting apparatus 1 of the present invention, the point at which the feeding roller 14 and the paper P are in pressure contact is a first nip point N1, the conveying driving roller 19a in the conveying roller 19 and the conveying driven roller 19b. When the point where the pressure contacts is the second nip point N2, the primary detection means 31 provided between the first nip point N1 and the second nip point N2 and the downstream of the second nip point N2 are provided. Secondary detection means 32 and a release structure 33 including a part of the roller holder 18 that holds the driven roller 19b for conveyance.

  Further, the release structure 33 includes a cam follower 35 formed at the opposite end of the roller holder 18 that rotates by a predetermined angle about the rotation fulcrum 34 from the conveyance driven roller 19b, An automatic gap adjustment (not shown) that is configured by a push-up cam 37 that abuts on the cam follower 35 and rotates about the release shaft 36 and automatically adjusts the gap between the recording head 13 and the paper P. Use an auto-release structure that operates in conjunction with the mechanism.

  Accordingly, the conveyance driven roller 19b is normally pressed against the conveyance drive roller 19a by the urging force acting on the roller holder 18 and is in a nip state. However, when the gap P is adjusted or when the remaining paper P is removed. The release structure 33 by the push-up cam 37 is actuated and separated to move to the release state. The recording material discharge method according to the present invention will be described below together with the operation mode of the recording material discharge assisting device 1 according to the present invention in accordance with the flowcharts shown in FIGS.

(1) Feeding start to primary detection (see Fig. 5)
First, when the presence of panel operation or recording execution data is confirmed in step S1, paper feeding of the paper P is started in step S2, and the passage of the paper P is detected by the primary detection means 31 in step S3. In step S4, it is determined whether or not the primary detection means 31 is turned on at regular timing. Note that whether or not the timing is correct is determined by whether or not the feeding roller 14 has rotated a predetermined number of steps.

  If it is determined that the primary detection means 31 is turned on at regular timing, in step S5, the paper supply roller 14 is rotated once to supply paper, and then the operation is terminated, and the secondary detection shown in FIG. It shifts to the operation mode based on the detection information of the means 32. On the other hand, if it is determined that the primary detection means 31 is not turned on at regular timing, the normal paper discharge execution controller is activated in step S6, and the paper P is discharged.

(2) Secondary detection to second primary detection (see FIG. 6)
Next, in step S7, the numerical value N of the counter of the feeding roller 14 is set to 0, and in step S8, the feeding roller 14 is rotated forward at a predetermined rotational speed. In step S9, the detection of the sheet P or the sheet S by the secondary detection means 32 is confirmed, and if the passage of the sheet P is confirmed, in step S10, the cueing execution controller for the sheet P prior to the execution of recording. Is activated.

  On the other hand, if the passage of the paper P is not confirmed, whether or not the feeding roller 14 has rotated a predetermined number of steps sufficient to deliver the paper P to the transport roller 19 in step S11 ′. When it is determined that the motor does not rotate at a predetermined rotational speed, the process returns to step S8, and the rotation of the feeding roller 14 is continued.

  If it is determined that the rotation has been performed by a predetermined number of steps, the discharge execution controller using the release structure 33 of the transport driven roller 19b shown in FIG. 7 is activated. On the other hand, the presence of the sheet P is confirmed by the secondary detection means 32, and the sheet P on which the cueing of the sheet P is performed in step S10 is recorded in step S11. After the recording is completed in step S12, the step is performed. After the primary detection means 31 and the secondary detection means 32 are turned off in S13, the presence or absence of the paper P is again confirmed by the primary detection means 31 in step S14 with the discharge roller 20 rotated for a predetermined number of steps. The

  When the primary detection unit 31 confirms that there is a subsequent sheet P, the discharge execution controller using the release structure 33 of the transport driven roller 19b shown in FIG. When it is confirmed that there is no subsequent paper P, the one-cycle recording and transport process is completed, and the process proceeds to the next cycle.

(3) Execution of emissions using the release structure (see Figure 7)
First, in step S15, the automatic gap adjusting mechanism is activated, and the automatic release structure interlocked therewith is operated to bring the conveyance driven roller 19b into a released state. In step S16, the user is instructed to remove the remaining paper P, and after the residual paper P is removed, the user presses the paper feed button. In response, if execution of paper feeding is started in step S17, the process proceeds to step 18, and if execution of paper feeding is not started, the process returns to step S15 and there is no remaining paper P. If there is any remaining paper P, it is removed.

  When the execution of paper feeding is started, the automatic gap adjusting mechanism is activated, and the automatic release structure interlocked therewith is operated to release the release state of the transport driven roller 19b, thereby setting the nip state. In step S19, the passage or remaining of the succeeding paper P is confirmed by the secondary detection means 32. If passage or remaining is confirmed, in step S20, the conveying roller 19 is rotated forward and discharged to the outside. Let On the other hand, when it is confirmed by the secondary detection means 32 that there is no subsequent paper P, the one-cycle recording / conveying process ends, and the process proceeds to the next cycle.

[Other embodiments]
The recording material discharge assisting apparatus, the recording apparatus equipped with the discharge assisting apparatus, and the recording material discharging method according to the present invention are based on the configuration as described above. Of course, it is possible to change or omit the partial configuration within a range that does not deviate. For example, the release structure 33 of the transport driven roller 19b can be an existing release structure 33 that is provided separately, as well as using an existing one that works in conjunction with the movement of the automatic gap adjustment mechanism. Further, if the primary detection means 31 is of a mechanical lever type as shown in the figure, the primary detection means 31 can also be provided with a release structure. The primary detection means 31 and the secondary detection means 32 may be of a contact type such as a mechanical limit switch, or a non-contact type using an optical position sensor or the like.

  INDUSTRIAL APPLICABILITY The present invention can be used in the field of manufacturing a recording apparatus such as an ink jet printer, more specifically, when it is desired to easily discharge a recording material remaining in a conveyance path without greatly changing the structure.

FIG. 3 is a side sectional view showing an internal structure of the printer when paper remains. It is a side sectional view showing the state at the time of same as the above, driven roller release for conveyance. It is a sectional side view which shows the state at the time of primary detection OFF and secondary detection ON. It is a sectional side view which shows the release structure of the driven roller for conveyance. It is a flowchart which shows the operation | movement aspect of feeding start-primary detection. The operation mode of the secondary detection to the second primary detection is shown above. The operation mode at the time of discharge execution using the release structure is shown.

Explanation of symbols

1 (auxiliary discharge device), 2 automatic feeding device,
3 Retarder roller (separation action part) 5 Return lever 13 Recording head
14 Feeding rollers, 16 hoppers, 18 roller holders (for driven rollers for conveyance),
19 transport roller, 19a transport drive roller, 19b transport driven roller,
20 discharge roller, 20a discharge drive roller, 20b discharge roller,
22 auxiliary serrated roller, 26 recording position, 28 platen,
30 recording material detection means, 31 primary detection means, 32 secondary detection means,
33 Release structure, 34 fulcrum, 35 cam follower, 36 release shaft,
37 Push-up cam, 100 Inkjet printer (recording device),
P paper (recording material), N1 first nip point, N2 second nip point

Claims (8)

When the recording material placed on the feeding tray is fed toward the conveying roller located downstream by the nipping pressure feeding action between the feeding roller and the hopper, the recording material is in the middle of the conveying path. Is a recording material discharge assisting device for facilitating discharge of the remaining recording material,
The discharge assisting apparatus according to claim 1, further comprising: a release structure configured to release a transport driven roller of the transport roller from a transport driving roller in a nip state.   2. The recording material according to claim 1, wherein the release structure uses an auto release structure that operates in conjunction with an automatic gap adjustment mechanism that automatically adjusts a gap between the recording head and the recording material. Discharge assist device.   3. The conveying driven roller according to claim 1, wherein the driven roller for conveyance is pivotally supported at one end of a roller holder that rotates by a predetermined angle around a rotation fulcrum, and the release structure includes the roller holder. The cam follower is formed at the other end of the roller, and a push-up cam that contacts the cam follower and rotates about the release shaft. A discharge assisting device for a recording material, wherein the conveyance driven roller can be moved in a direction away from the urging force. Automatic pickup of a predetermined number of recording materials placed on a feeding tray by picking up and feeding units in order from the recording material located on the uppermost surface by a pressure-feeding action between a feeding roller and a hopper A recording apparatus comprising: a feeding device; and a conveying roller that guides the recording material to a recording position by a nipping pressure feeding action by a driving roller for conveyance and a driven roller for conveyance of the recording material that has been fed. ,
The recording apparatus is provided with the recording material discharge assist device according to any one of claims 1 to 3. A predetermined number of liquid ejecting materials placed on the feeding tray are picked up and fed in units from the liquid ejecting material located on the uppermost surface in order by the pressure feeding action between the feeding roller and the hopper. A liquid comprising: an automatic feeding device that feeds the liquid ejecting material that has been fed, and a transporting roller that guides the liquid ejecting material to a recording position by a nipping pressure feeding action between a driving roller for transporting and a driven roller for transporting An injection device,
In the liquid ejecting apparatus, when the liquid ejecting material placed on the feeding tray is fed toward the conveying roller located downstream by the nipping pressure feeding action by the feeding roller and the hopper. A discharge auxiliary device for liquid injection material is provided for facilitating discharge of the remaining liquid injection material when the liquid injection material remains in the middle of the transfer path, and the discharge auxiliary device is used for transfer A liquid ejecting apparatus comprising: a release structure in which a driven follower roller in a roller is released from a transport driving roller in a nip state, and is in a release state. When the recording material placed on the feeding tray is fed toward the conveying roller located downstream by the nipping pressure feeding action between the feeding roller and the hopper, the recording material remaining in the conveying path is left. A recording material discharging method for discharging recording material to the outside,
In the discharging method, a primary nip point is provided between a first nip point where the feeding roller and the recording material are in pressure contact with each other and a second nip point where the conveyance driving roller and the conveyance driven roller in the conveyance roller are in pressure contact with each other. The detection means and the secondary detection means provided in the vicinity of the downstream of the conveying roller detect the presence or absence of the recording material, and when the primary detection means is ON and the secondary detection means is OFF, feeding is performed. It is determined whether or not the roller for rotation has rotated by a predetermined number of revolutions, and when the rotation has been performed for a predetermined number of rotations, the discharge execution controller using the release structure of the driven roller for conveyance is set to start. The recording material discharge method. When the recording material placed on the feeding tray is fed toward the conveying roller located downstream by the nipping pressure feeding action between the feeding roller and the hopper, the recording material remaining in the conveying path is left. A recording material discharging method for discharging recording material to the outside,
In the discharging method, a primary nip point is provided between a first nip point where the feeding roller and the recording material are in pressure contact with each other and a second nip point where the conveyance driving roller and the conveyance driven roller in the conveyance roller are in pressure contact with each other. The detection means and the secondary detection means provided in the vicinity of the downstream of the conveying roller detect the presence or absence of the recording material. The primary detection means is ON, the secondary detection means is ON, and the primary detection is performed after the recording is completed. When the primary detection means is turned on again with the predetermined number of steps and the discharge roller rotated after the means and the secondary detection means are turned off, a discharge execution controller that uses the release structure of the conveyance driven roller is provided. A recording material discharging method, wherein the recording material is set to be activated.   8. The discharge execution controller using the release structure of the transport driven roller according to claim 6 activates an automatic gap adjustment mechanism, and operates the auto release structure in conjunction with the automatic gap adjustment mechanism to move the transport driven roller to the transport drive roller. After releasing the remaining recording material, release the release state of the driven roller for conveyance, press it again to the driving roller for conveyance to bring it into the nip state, and pass the subsequent recording material by the secondary detection means In addition, after confirming the residue, the recording roller is rotated forward to discharge the recording material to the outside.

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