JP2016117564A - Recording device - Google Patents

Abstract

When a sheet is set on the opposite side of the printing direction by a recording unit, the sheet is printed on an unintended or undesignated side of the sheet, and the sheet is wasted. There is. A hopper 11 having a load mechanism 20, a separation pad 17 that separates a sheet, and a load mechanism 20 are interlocked with the load mechanism 20 so that the sheet P 1 is in contact with a feeding roller 13. A plunger 16 that switches between a first load N1 that can pass through the separation pad 17 and a second load that allows the paper P1 to pass through the separation pad 17 while the address surface P1b is in contact with the feeding roller 13. The plunger 16 provides a recording device that is set so that the paper P1 is stopped by the separation pad 17 according to the state of the load and the resistance of the separation pad 17 when feeding of the paper P1 is started. [Selection] Figure 6

Description

  The present invention relates to a recording apparatus.

  A feed roller for feeding in contact with paper (recording medium) and a hopper capable of holding and swinging the stacked paper and feeding the topmost paper by swinging the hopper There is a recording apparatus provided with a feeding device that is pressed to feed a sheet to a recording unit (for example, Patent Document 1). For example, when printing on a paper that can be printed on the front and back surfaces, such as a postcard, the user sets the paper in the hopper with the surface to be printed facing the side printed by the recording unit. Alternatively, when printing on dedicated paper on which a surface capable of printing with photographic image quality is formed, the dedicated paper is set in the hopper with the designated surface facing the side to be printed by the recording unit.

JP 2008-7320 A

  However, when the user sets such paper in the feeding device, the side to be printed on the postcard or the designated side of the special paper is set on the side opposite to the side printed by the recording unit. In the case of ending up, there is a problem that paper such as postcard or special paper is wasted because it is printed on an unintended side of the postcard or on a non-designated side of the special paper.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A recording apparatus that feeds a recording medium having a friction coefficient of a first surface larger than that of a second surface opposite to the first surface to a recording unit by a feeding roller. And a loading unit that is provided so as to be able to swing in a direction in which the loaded recording medium comes in contact with and separates from the feeding roller and applies a load to the recording medium in contact with the feeding roller. And a separation unit that is provided on the downstream side in the feeding direction of the feeding roller and separates the recording medium from a plurality of the recording media fed in an overlapping state, and the load mechanism. In conjunction, a first load that allows the recording medium to pass through the separation portion in a state where the first surface is in contact with the feeding roller, and a state in which the second surface is in contact with the feeding roller. The recording medium is cut off from the second load that can pass through the separation portion. Comprising a load switching mechanism to obtain, a, the resistance of the load and the separating portion by the load switching mechanism, a recording apparatus wherein said recording medium is stopped at the separating portion.

  According to this application example, the recording medium stops at the separation unit due to the load by the load switching mechanism and the resistance of the separation unit. Thereby, it can prevent recording on the 2nd surface on the opposite side to the 1st surface used as the intended recording surface.

  [Application Example 2] When the first load is set to be smaller than the second load and is set to the first load by the load mechanism when recording on the second surface. The recording apparatus is characterized in that when the feeding of the recording medium is started in a state where the second surface is in contact with the feeding roller, the recording medium is stopped by the separation unit.

  According to this application example, the recording medium is placed so that the user intends to print the first surface as the recording surface, and the second surface opposite to the first surface is the recording surface. Even when the recording medium is placed, the recording medium is stopped by the separation section when feeding of the recording medium is started. Therefore, since the recording medium is not fed to the recording unit, it is possible to prevent the recording medium from being wasted by being recorded on an unintended surface or an unspecified surface.

  Application Example 3 A detection unit that detects whether or not a leading end of the recording medium in the feeding direction has passed through the separation unit, a display unit that displays a message, and a control unit, In the detection result obtained from the detection unit, the control unit is configured such that when the tip portion does not pass through the separation unit, the second surface is oriented toward the side recorded by the recording unit. The recording apparatus according to claim 1, wherein a message indicating that the recording medium is placed on the placement unit is displayed on the display unit.

  According to this application example, it is easy for the user that the second surface opposite to the first surface that is the intended recording surface is placed facing the recording side by the recording unit. Can be recognized.

  Application Example 4 When recording on the second surface, the control unit uses the load switching mechanism to change the load applied by the load mechanism from the first load to the second load. The recording apparatus, wherein the recording apparatus is switched to

  According to this application example, a feeding force capable of feeding the recording medium can be generated by the second load in a state where the feeding roller is in contact with the second surface of the recording medium.

  Application Example 5 The recording apparatus, wherein the load is switched by an urging force applied to the feeding roller.

  According to this application example, it is possible to change the feeding force of the feeding roller for feeding the recording medium.

1 is a diagram illustrating a schematic configuration of a recording apparatus. The perspective view of a feeder. The figure for demonstrating operation | movement at the time of applying a 1st load in the state in which the communication surface of the postcard faced the feed roller side. The figure for demonstrating operation | movement at the time of applying a 1st load in the state in which the communication surface of the postcard faced the feed roller side. The figure for demonstrating operation | movement when the 2nd load is applied in the state in which the address surface of the postcard faced the feed roller side. The figure for demonstrating operation | movement when the 1st load is applied in the state in which the address surface of the postcard faced the feeding roller side. FIG. 2 is a block configuration diagram showing an electrical schematic configuration of a recording apparatus. 6 is a flowchart showing a flow of processing of a program executed by the recording apparatus. 10 is a flowchart showing a flow of processing of a program executed by the recording apparatus according to the second embodiment. 10 is a flowchart showing a flow of processing of a program executed by the recording apparatus according to the third embodiment. The figure which shows the content of a message.

Hereinafter, an embodiment of a recording apparatus will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a diagram showing a schematic configuration of the recording apparatus 1. FIG. 2 is a perspective view of the feeding device 10. The paper P as the recording medium in FIG. 1 is fed to the recording unit 2 by the feeding device 10. The recording head 4 that ejects ink as liquid is provided below the carriage 3 in the vertical direction Z, and the carriage 3 is provided so as to be reciprocally movable in the main scanning direction X.

  On the upstream side in the sub-scanning direction Y of the recording head 4 (hereinafter referred to as the upstream side), a transport driving roller 6 and a transport driven roller 7 are provided, and the paper P is transported by the transport drive roller 6 and the transport driven roller 7. Are supported by a support portion 5 provided at the lower portion of the recording head 4 and conveyed downstream in the sub-scanning direction Y (hereinafter referred to as downstream side).

  The recording unit 2 according to the present embodiment includes a recording head 4 provided on the carriage 3, a support unit 5, a transport driving roller 6, and a transport driven roller 7. Characters and images are recorded on the paper P as the recording head 4 reciprocates in the main scanning direction X while ejecting ink onto the paper P conveyed downstream.

  A discharge drive roller 8 and a discharge driven roller 9 are provided on the downstream side of the recording head 4, and the recorded paper P is sandwiched between the discharge drive roller 8 and the discharge driven roller 9 and discharged downstream. The

  The hopper 11 of FIG. 2 includes a pair of edge guides 30 that are slidable in the main scanning direction X, and the edge guides 30 are positioned at both ends of the paper P placed on the hopper 11 in the main scanning direction X. To regulate. A feeding roller 13 fixed to the feeding roller shaft 39 is provided on the lower end side of the hopper 11. The feeding roller 13 of FIG. 1 has a D-shaped cross section viewed from the main scanning direction X, and is provided to be rotatable about an axis center 131 as a rotation center.

  The hopper 11 in FIG. 1 is provided so as to be capable of swinging in the rotation directions D1 and D2 with the swinging shaft 110 as a fulcrum while holding a plurality of sheets P obliquely in a stacked state. The plurality of sheets P is placed on the hopper 11 with the lower end of the sheet P in contact with the support surface 120 of the wall portion 12 provided on the downstream side of the hopper 11. A friction member 111 formed of a cork-like plate member is provided at the center of the upper surface on the lower end side of the hopper 11 in the main scanning direction X.

  As the hopper 11 swings, the uppermost part of the paper P placed on the hopper 11 comes into contact with or separates from the feeding roller 13. The paper P is nipped and held by the feeding roller 13 and the hopper 11, and the uppermost paper P placed on the hopper 11 is picked up when the feeding roller 13 rotates in the direction D7 in this state. The paper P picked up by the feed roller 13 is transported downstream along the upper surface 121 of the wall portion 12 and fed to the recording unit 2.

  A separation pad 17 is provided on the downstream side of the support surface 120 in the wall portion 12. The separation pad 17 is provided only for the uppermost sheet P to which the feeding roller 13 abuts when a so-called multi-feed occurs in which a plurality of sheets P placed on the hopper 11 are to be fed out. Is configured to separate from other paper P such that the paper is fed downstream. The separation pad 17 is formed of an elastic material such as an elastomer, and microscopically, the leading edge of the paper P moves downstream while being reduced to the pad surface.

  On the downstream side of the separation pad 17 and upstream of the transport driving roller 6 and the transport driven roller 7, a detection unit 18 that detects the upstream or downstream end of the paper P is located above the upper surface 121 of the wall 12. Provided. The detection unit 18 is an optical type including a light receiving unit (not shown) and a light emitting unit (not shown).

  A pair of return levers 38 are swingably provided on the downstream side of the hopper 11 in FIG. By swinging the return lever 38, it is possible to return the paper P other than the uppermost part of the plurality of fed papers P to the hopper 11.

  The drive transmission system 32 includes a plurality of gears including a feeding motor 31 and a gear 33 that meshes with an output pinion (not shown) of the feeding motor 31. The last gear 34 of the drive transmission system 32 meshes with a cam shaft gear 35 fixed to the end of the cam shaft 36. The driving force of the feeding motor 31 is transmitted through a cam (not shown) formed on the cam shaft 36, and the hopper 11 and the return lever 38 swing.

  The hopper actuating member 14 of FIG. 1 is supported by the base frame 19 of FIG. 2, and is supported so as to be swingable in directions D3 and D4 with the center 143 of the cylindrical shaft portion 142 as a fulcrum. A hopper pressing portion 140 is formed on one side of the cylindrical shaft portion 142, and a cam receiving portion 144 is formed on the other side.

  The hopper actuating member 14 is provided with a coiled spring 15 formed by winding a linear member in a spiral shape. The coiled spring 15 is provided in a state in which a cylindrical shaft portion 142 is inserted into an annular portion 150 in which a linear member is spirally wound.

  A plunger 16 is provided below the hopper actuating member 14. The plunger 16 has a main body portion 160 and a moving portion 161, and the main body portion 160 is fixed to the base frame 19 in FIG. 1 is formed with a cylinder portion 163 extending in the sub-scanning direction Y, and the right side of the moving portion 161 is slid and moved in the directions D5 and D6 in the sub-scanning direction Y while being inserted into the cylinder portion 163. Provided as possible.

  The sliding movement of the moving part 161 is driven by an electromagnet, and the position of the moving part 161 in the sub-scanning direction Y with respect to the main body part 160 can be selectively fixed. One end portion 151 of the linear member forming the coiled spring 15 is locked to a protruding portion 141 provided in the hopper pressing portion 140 and protruding in the main scanning direction X, and the other end portion 152 of the linear member. Is locked to a hook portion 162 having a bent shape on the left end of the moving portion 161 in the drawing.

  When the position of the moving portion 161 in the sub-scanning direction Y is in a selectively fixed state, the end portion 152 of the linear member is fixed by the hook portion 162 and the end of the linear member locked by the protruding portion 141. The part 151 tries to rotate the hopper pressing part 140 in the direction D3 by the urging force generated by the annular part 150 of the coiled spring 15. Thereby, the hopper pressing part 140 is contact | abutted to the surface at the side of the hopper operation member 14 of the lower end part of the hopper 11, and presses it in the direction which rotates the hopper 11 to the direction D1.

  The load mechanism 20 in this embodiment includes a hopper actuating member 14 and a coiled spring 15. With the lower end of the hopper 11 rotating in the direction D <b> 1 approaching the feeding roller 13 and the paper P placed on the hopper 11 is in contact with the feeding roller 13, the load mechanism 20 moves to the feeding roller 13. A load is applied to the contacted paper P via the hopper 11.

  The cam 37 formed on the cam shaft 36 of FIG. 2 abuts so that the cam receiving portion 144 of the hopper actuating member 14 of FIG. 1 operates as a cam follower. The hopper actuating member 14 is rotated in the direction D4 with the center 143 of the cylindrical shaft portion 142 as a rotation fulcrum by the cam action of the cam 37 accompanying the rotation of the cam shaft 36, whereby the hopper pressing portion 140 is moved at a predetermined timing. Retreat to the lower side of the hopper 11. Thereby, the pressing force with respect to the lower surface of the hopper 11 by the hopper pressing portion 140 is released, and the hopper 11 rotates in the direction D2 due to its own weight.

  3 and 4 are diagrams for explaining the operation when the first load N1 is applied in a state where the communication surface of the postcard placed on the hopper 11 faces the feeding roller 13 side. The sheets P <b> 1 and P <b> 2 are sheets having different friction coefficients between the front surface and the back surface with respect to the feeding roller 13. In the present embodiment, a case where printing is performed on a postcard will be described as an example of sheets P1 and P2 having different friction coefficients on the front and back surfaces. The postcard has a communication surface (front surface) on which a communication text is written and an address surface (back surface) on which an address is written, and the friction coefficient of the communication surface is different from the friction coefficient of the address surface. For explanation, two sheets P1 and P2 are used.

  The sheets P1 and P2 in FIG. 3 are placed on the hopper 11 with the communication surfaces P1a and P2a facing the feeding roller 13 side. The hopper 11 rotates in the direction D1 from the rotation position of FIG. As a result, the lower end portions P1c and P2c of the sheets P1 and P2 move upward along the support surface 120 of the wall portion 12 and then enter between the feeding roller 13 and the wall portion 12 to enter the separation pad 17. Abut.

  The feeding roller 13 that has been at the rotational position in FIG. 1 rotates in the rotation direction D7 and contacts the communication surface P1a of the paper P1 as shown in FIG. The first load N1 acts on the paper P1 as a pressing load via the hopper 11 and the paper P2 by the load mechanism 20.

  Since the weight of the sheet varies depending on the number of sheets placed on the hopper 11, the first load N <b> 1, that is, the pressing load applied to the sheet P <b> 1 is placed from the load applied to the hopper 11 by the load mechanism 20. The weight of the paper is subtracted. That is, the first load N1 is set as a pressing load corresponding to the weight of the loaded paper.

  A feeding force F1 to be fed downstream by friction between the rotating feeding roller 13 of FIG. 4 and the communication surface P1a of the paper P1 is a friction resistance R1 of the lower end portion P1c of the paper P1 against the separation pad 17, and It is larger than the sum of the frictional resistance R2 of the address surface P1b of the paper P1 with respect to the communication surface P2a of the paper P2. Accordingly, as shown in FIG. 4, when the feed roller 13 rotates in the rotation direction D7, the paper P1 is fed downstream.

  Even if the paper P1 is fed downstream by the rotation of the feed roller 13, the lower end P2c of the paper P2 stops at the position of the separation pad 17 due to the frictional resistance of the lower end P2c of the paper P2 with respect to the separation pad 17. The paper P2 is not fed downstream.

  That is, the sheets P1 and P2 that are overlapped with the gap between the feeding roller 13 and the wall portion 12 are separated from the sheet P1 that passes through the separation pad 17 as the feeding roller 13 rotates. The paper P2 is stopped at the position of the separation pad 17. The sheet P1 that has passed through the separation pad 17 is transported further downstream and recorded in the recording unit 2.

As shown in the following equation (1), the feeding force F1 has a relationship obtained by integrating the first load N1 and the friction coefficient μ1 between the feeding roller 13 and the communication surface P1a.
F1 = N1 × μ1 (1)

  FIG. 5 illustrates the operation when the second load N2 is applied in a state where the address surfaces P1b and P2b of the sheets (postcards) P1 and P2 placed on the hopper 11 face the feed roller 13 side. FIG. The feeding roller 13 is in a rotating position where it abuts on the address surface P1b of the paper P1.

  The moving part 161 of the plunger 16 slides in the direction D6, and the hook part 162 in the moving part 161 is moved from the position indicated by the broken line to the position indicated by the solid line. As a result, the end portion 152 of the coiled spring 15 indicated by the broken line also has a larger inclination angle with respect to the vertical direction Z as indicated by the solid line. Therefore, the urging force generated in the annular portion 150 of the coil spring 15 is increased, and the second load N2 is applied to the hopper 11 by the hopper pressing portion 140 of the hopper operation member 14. A second load N2 acts on the paper P1 as a pressing load via the hopper 11 and the paper P2. Since the weight of the paper varies depending on the number of sheets placed on the hopper 11, the second load N2 is set as a pressing load corresponding to the weight of the placed paper.

As shown in the following equation (2), the feeding force F2 to be fed downstream by the friction between the rotating feeding roller 13 and the address surface P1b of the paper P1 includes the second load N2 and the feeding The relationship is obtained by integrating the friction coefficient μ2 between the roller 13 and the address surface P1b.
F2 = N2 × μ2 (2)

  The friction coefficient μ2 between the feeding roller 13 and the address surface P1b in FIG. 5 is smaller than the friction coefficient μ1 between the feeding roller 13 and the communication surface P1a in FIG. Therefore, the second load N2 is set larger than the first load N1.

  Thereby, the feeding force F2 to be fed downstream by friction between the rotating feeding roller 13 and the address surface P1b of the paper P1 is a friction resistance R3 of the lower end portion P1c of the paper P1 against the separation pad 17, and It is larger than the sum of the frictional resistance R4 of the communication surface P1a of the paper P1 with respect to the address surface P2b of the paper P2.

  Accordingly, the sheet P1 with the address surface P1b facing the feeding roller 13 is fed to the downstream side with the rotation of the feeding roller 13 while being pressed by the feeding roller 13, and the recording unit 2 Is recorded on the address plane P1b.

  As described above, the first load N1 described with reference to FIGS. 3 and 4 is applied to the paper P1 by the load mechanism 20 in a state where the moving portion 161 is pushed out from the cylinder portion 163 in the direction D5 and is at the left side of the drawing. This is a load that is applied, and is a load that allows the paper P1 to be fed by the rotation of the feed roller 13 in a state where the communication surface P1a of the paper P1 is in contact with the feed roller 13.

  The second load N1 described with reference to FIG. 5 is a load applied to the paper P1 by the load mechanism 20 in a state where the moving unit 161 is at the right side of the drawing, and the address surface P1b of the paper P1 is the feeding roller. 13 is a load that allows the sheet P1 to be fed by the rotation of the feeding roller 13 while in contact with the sheet 13.

  Also, the friction coefficient μ1 between the feeding roller 13 and the communication surface P1a in FIGS. 3 and 4 is larger than the friction coefficient μ2 between the feeding roller 13 and the destination surface P1b in FIG. 5, and the first load N1 is 2 is set to be smaller than the load N2.

  Here, a case where the sheets P1 and P2 are set in the hopper 11 with the communication surfaces P1a and P2a intended to be recorded by the user facing the side opposite to the side recorded by the recording unit 2 will be described. FIG. 6 illustrates an operation when the first load N1 is applied in a state where the address surfaces P1b and P2b of the sheets (postcards) P1 and P2 placed on the hopper 11 face the feeding roller 13 side. FIG. That is, FIG. 6 shows a state in which the sheets P1 and P2 are placed on the hopper 11 with the communication surfaces P1a and P2a intended to be recorded by the user facing the side opposite to the side recorded by the recording unit 2.

In a state where the first load N1 is applied to the hopper 11 by the load mechanism 20, the feeding force F3 to be fed downstream by friction between the rotating feeding roller 13 and the address surface P1b of the paper P1 is As shown in the following equation (3), there is a relationship obtained by integrating the first load N1 and the friction coefficient μ2 between the feeding roller 13 and the address surface P1b.
F3 = N1 × μ2 (3)

  As described above, the first load N1 is set to be smaller than the second load N2. Accordingly, the feeding force F3 in the state where the first load N1 in FIG. 6 is applied is smaller than the feeding force F2 in the state where the second load N2 in FIG. 5 is applied. Therefore, as shown in FIG. 6, even if the feeding roller 13 rotates in the rotation direction D7, the lower end portion P1c of the paper P1 remains in the position of the separation pad 17, and the paper P1 is fed downstream. Not.

  FIG. 7 is a block configuration diagram showing an electrical schematic configuration of the recording apparatus 1. The recording apparatus 1 includes a control unit 60. The control unit 60 includes a RAM 72, a ROM 73, an ASIC (application specific integrated circuit) 71, a CPU (central processing unit) 75, a nonvolatile memory 74, a head drive circuit 76, and a motor drive circuit. 77, 78, 79. The RAM 72, ROM 73, ASIC 71, CPU 75, and nonvolatile memory 74 are connected to the system bus 70. The head drive circuit 76 and the motor drive circuits 77, 78, 79 are connected to the ASIC 71.

  The ROM 73 stores a recording control program (firmware) and the like necessary for the control of the recording apparatus 1 by the CPU 75. The RAM 72 is used as a work area for the CPU 75 and a storage area for recording data and the like. The ASIC 71 includes a control circuit for performing nozzle drive control of the recording head 4 and a control circuit for performing speed control of the feed motor 31, the transport motor 80, and the carriage motor 81.

  The ASIC 71 sends control signals for the recording head 4 to the head drive circuit 76, and sends control signals for the feed motor 31, the transport motor 80, and the carriage motor 81 to the motor drive circuits 77, 78, and 79, respectively. Further, the ASIC 71 performs transmission / reception with the personal computer 90 via the interface 82. The CPU 75 performs arithmetic processing for executing recording control of the recording apparatus 1 and other necessary arithmetic processing. The nonvolatile memory 74 stores various data necessary for processing the recording control program.

  The ASIC 71 controls the driving of the plunger 16 and controls the position of the moving unit 161 in FIG. 1 in the sub-scanning direction Y. The CPU 75 detects the upstream or downstream edge of the paper P by the detection unit 18 via the ASIC 71. Further, the recording apparatus 1 is provided with a display unit 84 composed of a liquid crystal or the like, and the CPU 75 displays a message on the display unit 84 via the ASIC 71. Further, the recording apparatus 1 includes an operation unit 85 such as operation buttons (not shown) operated by the user.

  Next, a description will be given of a processing method executed in the recording apparatus 1 when a sheet is placed on the hopper 11 on the side opposite to the side recorded by the recording apparatus 1 on the side on which the user intends to record. To do.

  FIG. 8 is a flowchart showing the flow of processing of a program executed by the recording apparatus 1. Regarding the processing method in the case where the sheet P1 is set on the side recorded on the address surface P1b by the recording unit 2 when the surface side that the user intends to record is the communication surface P1a (see FIG. 6). This will be described with reference to FIG.

  In the personal computer 90 of FIG. 7, a printer driver is installed as a program for setting printing conditions for executing recording in the recording apparatus 1, and the user operates the printer driver with a mouse (not shown). For example, the paper type and the surface side information that the user intends to record are set.

  The ASIC 71 acquires the paper type and surface side information intended by the user from the personal computer 90 via the interface 82, and the CPU 75 stores the acquired paper type and surface side information in the nonvolatile memory 74. Remember me.

  In this embodiment, the user intends to print on the communication surface of the postcard, and the non-volatile memory 74 has “postcard” as information on the paper type and “communication surface” as information on the surface side. , Stored in advance.

  In step S <b> 100, the CPU 75 acquires “postcard” as information on the type of paper stored in the nonvolatile memory 74 and “communication surface” as surface-side information.

  In step S110, the CPU 75 drives the plunger 16 via the ASIC 71 in FIG. 7 based on the paper type information and the surface side information acquired in step S100. N1 "is set to be applied to the hopper 11.

  In step S120, the CPU 75 drives the feed motor 31 by the drive control of the motor drive circuit 77 of the ASIC 71, rotates the feed roller 13, and starts feeding the paper P1.

  In step S130, the CPU 75 determines whether or not the downstream end of the paper P1 has been detected using the detection unit 18 of FIG. When the downstream end of the sheet P1 is detected (Yes), that is, when it is determined that the sheet P1 is fed by the rotation of the feeding roller 13, the process proceeds to step S140, and the recording process is performed in the recording unit 2. , The process ends.

  When the downstream end of the sheet P1 is not detected (No), that is, when it is determined that the sheet P1 has not been fed due to the rotation of the feeding roller 13, the process proceeds to step S150. In step S150, the CPU 75 stops feeding by stopping the rotation of the feeding roller 13, and ends the processing.

  As described above, in the recording apparatus 1 of FIG. 3 described in the present embodiment, the friction coefficient μ1 of the communication surface P1a as the first surface is the friction coefficient μ2 of the address surface P1b as the second surface opposite to the communication surface P1a. The recording apparatus 1 feeds a sheet (postcard) P1 as a larger recording medium to the recording unit 2 by a feeding roller 13.

  The recording apparatus 1 is provided so as to be able to swing in the direction in which the placed paper P1 comes in contact with and separates from the feeding roller 13, and the first load N1 or the second load is applied to the paper P1 in contact with the feeding roller 13. A hopper 11 serving as a mounting portion having a load mechanism 20 for applying N2 (see FIG. 5) and a downstream side in the feeding direction (sub-scanning direction Y) of the feeding roller 13 are fed in an overlapping state. The sheet P1 is in contact with the feeding roller 13 in conjunction with the separation pad 17 serving as a separation unit that separates one sheet P1 from the plurality of sheets P1 and P2 and the load mechanism 20. A load switching mechanism that switches between the first load N1 that can pass through the separation pad 17 and the second load N2 that allows the paper P1 to pass through the separation pad 17 in a state where the address surface P1b of FIG. As a It includes a Rangers 16, a.

  The first load N1 is smaller than the second load N2, and when the first load N1 is set by the load mechanism 20 as shown in FIG. When feeding of the paper P1 is started in the contact state, the paper P1 is set to be stopped by the separation pad 17.

  According to this configuration, the sheet P1 is placed on the hopper 11 so that the user intends to print the communication surface P1a as the recording surface, and the address surface P1b opposite to the communication surface P1a is the recording surface. However, when feeding of the paper P1 is started, the paper P1 is stopped by the separation pad 17. Therefore, since the paper P1 is not fed to the recording unit 2, it is possible to prevent the paper P1 from being wasted due to being recorded on the unintended address surface P1b.

  The first load N1 and the second load N2 are set corresponding to the friction coefficient μ1 of the communication surface P1a and the friction coefficient μ2 of the address surface P1b in the paper P1, respectively.

  Accordingly, the first load N1 that allows the paper P1 to pass through the separation pad 17 in a state where the communication surface P1a is in contact with the feeding roller 13, and the paper P1 in the state where the address surface P1b is in contact with the feeding roller 13. And a second load N2 that can pass through is set. Further, when the first load N1 is smaller than the second load N2 and is set to the first load N1 by the load mechanism 20, the sheet P1 is fed in a state where the address surface P1b is in contact with the feeding roller 13. Can be set to be stopped by the separation pad 17.

(Embodiment 2)
In the second embodiment, the recording medium is mounted on the hopper 11 so that the user intends to print the first surface as the recording surface, and the second surface opposite to the first surface is the recording surface. If it is set, a recording device for displaying a message will be described.

  As in the first embodiment, the user intends to print on the communication surface of the postcard, and the nonvolatile memory 74 stores the paper by the printer driver and the control unit 60 installed in the personal computer 90 of FIG. “Postcard” as type information and “communication surface” as surface-side information are stored in advance.

  FIG. 9 is a flowchart showing a flow of processing of a program executed by the recording apparatus according to the second embodiment. FIG. 9 is obtained by adding step S160 to the flowchart of FIG. The contents of the processing from step S100 to step S150 are the same as the contents of the processing described with reference to FIG. 8 in the first embodiment.

  After feeding is stopped in step S150, the process proceeds to step S160. In step S160, the CPU 75 indicates that the address surface, which is the second surface, is directed toward the side recorded by the recording unit 2, not the communication surface, which is the first surface that the user intends to record. A message is displayed on the display part 84, and a process is complete | finished. Specifically, a message is displayed as “the address side opposite to the communication side to be printed is set” in FIG. 11A, and the process is terminated.

  As described above, the recording apparatus described in the second embodiment includes the detection unit 18 that detects whether the leading end in the feeding direction (sub-scanning direction Y) of the paper P as the recording medium has passed through the separation pad 17. , A display unit 84 for displaying a message, and a control unit 60, and the control unit 60 outputs the second when the tip does not pass through the separation pad 17 in the detection result obtained from the detection unit 18. A message indicating that the address surface as a surface is placed on the hopper 11 in a posture facing the side recorded by the recording unit 2 is displayed on the display unit 84.

  As a result, the user can easily recognize that the address surface is opposite to the communication surface that is the intended recording surface. Other configurations in the recording apparatus of the present embodiment are the same as those described in the first embodiment.

  In the first and second embodiments, the case where a postcard having a communication surface and an address surface is fed has been described. However, the present invention is also applied to a sheet having a printing surface dedicated for photographs as a first surface, such as glossy paper. . That is, the first load N1 and the second load N2 are set corresponding to the friction coefficient of the first surface and the friction coefficient of the second surface in a plurality of types of recording media.

  Thus, even in a plurality of types of recording media, the user tries to print the first surface as the recording surface, and the second surface opposite to the first surface becomes the recording surface. Even if the recording medium is placed on the hopper 11, the recording medium is recorded on an unintended surface or an unspecified surface (for example, a surface opposite to the printing surface of the glossy paper), and the recording medium (glossy paper) is recorded. It can prevent being wasted.

(Embodiment 3)
In the third embodiment, the user intends the address surface as the second surface as the recording surface, and the user places the address surface on the hopper 11 in a posture facing the side recorded by the recording unit 2. The case where “the communication surface as the first surface” is set as the surface-side information in the nonvolatile memory 74 by the printer driver installed in the personal computer 90 in FIG. 7 will be described.

  FIG. 10 is a flowchart illustrating a flow of processing of a program executed by the recording apparatus according to the third embodiment. FIG. 10 is obtained by adding steps S200 to S250 to the flowchart of FIG. The contents of the processing from step S100 to step S150 are the same as those described in the first embodiment with reference to FIG.

  In step S200, the CPU 75 indicates that the address surface as the second surface is directed to the side recorded by the recording unit 2, and displays a message on the display unit 84 for confirming whether or not to record on the address surface. Display. Specifically, a message is displayed on the display unit 84, as shown in FIG. 11 (b), "The address side opposite to the communication side to be printed is set. Do you want to print on this side?" The

  In step S210, the CPU 75 acquires information from the operation unit 85 in FIG. 7, and determines whether or not the user intends to record. If there is an intention to record (Yes), the process proceeds to step S220. If there is no intention to record (No), the process is terminated.

  In step S220, the CPU 75 drives the plunger 16 via the ASIC 71, and sets the load applied by the load mechanism 20 from the first load N1 to the second load N2 (changes the setting).

  In step S <b> 230, the CPU 75 drives and controls the motor driving circuit 77 to drive the feeding motor 31 and starts feeding by rotation of the feeding roller 13.

  In step S <b> 240, the CPU 75 uses the detection unit 18 to determine whether the downstream end of the paper P has been detected. When the downstream end of the paper P is detected (Yes), the process proceeds to step S140, and the recording process by the recording unit 2 is performed in step S140. In step S240, when the downstream end of the sheet P is not detected by the detection unit 18 (No), the process proceeds to step S250.

  When the downstream end of the paper P is not detected by the detection unit 18, an error state is indicated. In step S 250, an error message indicating the error state is displayed on the display unit 84.

  As described above, in the recording apparatus according to the present embodiment, the “communication surface” is stored in the nonvolatile memory 74 as information on the surface side even though the user intends to record on the address surface. If the load applied by the load mechanism 20 is switched from the first load N1 to the second load N2 by the plunger 16, the address surface intended by the user can be printed with an easy operation.

  That is, after erasing the print data that has already been transmitted from the personal computer 90 and received by the control unit 60, the “address surface” as the surface-side information is stored in the nonvolatile memory 74 by the operation of the printer driver of the personal computer 90 again. There is no need for the user to perform an operation for storing the data in the memory. Other configurations in the recording apparatus of the present embodiment are the same as those described in the first embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Recording device, 2 ... Recording part, 11 ... Hopper, 13 ... Feeding roller, 14 ... Hopper operation member, 15 ... Coil spring, 16 ... Plunger, 17 ... Separation pad, 18 ... Detection part, 20 ... Load Mechanism, 60 ... control unit, 84 ... display unit, P, P1, P2 ... paper, P1a, P2a ... communication surface, P1b, P2b ... address surface, N1 ... first load, N2 ... second load, μ1, μ2 Coefficient of friction.

Claims (5)

A recording apparatus for feeding a recording medium having a friction coefficient of a first surface larger than a friction coefficient of a second surface opposite to the first surface to a recording unit by a feeding roller,
A loading portion provided with a load mechanism that applies a load to the recording medium in contact with the feeding roller, and is provided so as to be swingable in a direction in which the loaded recording medium is brought into contact with and separated from the feeding roller; ,
A separation unit that is provided on the downstream side in the feeding direction of the feeding roller and separates the recording medium from a plurality of the recording media fed in an overlapping state;
In conjunction with the load mechanism, a first load that allows the recording medium to pass through the separation portion in a state where the first surface is in contact with the feeding roller, and the second surface serves as the feeding roller. A load switching mechanism that switches between a second load that allows the recording medium to pass through the separation unit in a contact state, and
The recording apparatus is characterized in that the recording medium stops at the separation unit due to the load by the load switching mechanism and the resistance of the separation unit. The recording apparatus according to claim 1,
The first load is set smaller than the second load, and when the first load is set by the load mechanism when recording on the second surface, the second load is set. The recording apparatus is characterized in that when the recording medium starts to be fed in a state where the surface is in contact with the feeding roller, the recording medium is stopped by the separation unit. The recording apparatus according to claim 1 or 2, wherein
A detection unit that detects whether or not a leading end of the recording medium in the feeding direction has passed through the separation unit;
A display for displaying a message;
A control unit,
In the detection result acquired from the detection unit, the control unit is configured such that when the tip portion does not pass through the separation unit, the second surface is oriented toward the side recorded by the recording unit, A recording apparatus, wherein a message indicating that a recording medium is placed on the placement section is displayed on the display section. The recording apparatus according to claim 3,
When recording on the second surface, the control unit switches the load applied by the load mechanism from the first load to the second load by using the load switching mechanism. A recording device. The recording apparatus according to any one of claims 1 to 4, wherein
The recording apparatus according to claim 1, wherein the load is switched by an urging force applied to the feeding roller.

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