Control method for recording device, and recording device

Abstract

To prevent a sheet from having a bleeding mark formed when a feed roller is in contact with the sheet for a long time.SOLUTION: A control method for a recording device comprises: paper feed means which has a paper feed roller which comes into contact with a recorded medium; a first paper feed cassette which has a first storage part capable of storing the recorded medium; a second paper feed cassette which is arranged above the first paper feed cassette to move to and away from the paper feed roller, and has a second storage part capable of storing the recorded medium; and a detection part which detects the second paper feed cassette, wherein the paper feed roller is elevated to move, based upon the detection result of the detection part, to one of a first paper feed position where the recorded medium is fed from the first paper feed cassette, a second paper feed position where the recorded medium is fed from the second paper feed cassette, and a stop position where the roller is not in contact with the recorded medium.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present disclosure relates to a method for controlling a recording device and a recording device.

Background Art

[0002] A recording device having two trays is known. Patent Document 1 describes a printer which is an example of a recording device. The printer described in Patent Document 1 has a lower tray and an upper tray. The upper tray is disposed above the lower tray. When the upper tray moves along the advancing and retreating direction, the feeding roller moves upward or downward in conjunction with the movement of the upper tray. When the lower tray is attached to the printer, the feeding roller contacts the paper accommodated in the lower tray. When the upper tray is positioned at a position where feeding is possible, the feeding roller contacts the paper accommodated in the upper tray.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the feeding roller is in contact with the paper for a long time, bleed marks may occur on the paper.

Means for Solving the Problems

[0005] The control method of the recording apparatus according to the present disclosure includes a paper feeding roller that contacts a recording medium, a paper feeding means having a rotary drive shaft that supports the paper feeding roller, a first paper feeding cassette having a first accommodating portion capable of accommodating the recording medium, a second paper feeding cassette that is disposed above the first paper feeding cassette so as to be movable forward and backward with respect to the paper feeding roller and has a second accommodating portion capable of accommodating the recording medium, a recording unit that performs printing on the recording medium, and a detection unit that detects the second paper feeding cassette. The paper feeding roller moves up and down to any one of a first paper feeding position where the recording medium is fed from the first paper feeding cassette, a second paper feeding position where the recording medium is fed from the second paper feeding cassette, and a stop position where the paper feeding roller does not contact the recording medium, based on the detection result of the detection unit.

[0006] The recording apparatus according to the present disclosure includes a paper feeding roller that contacts a recording medium, a paper feeding means having a rotary drive shaft that supports the paper feeding roller, a first paper feeding cassette having a first accommodating portion capable of accommodating the recording medium, a second paper feeding cassette that is disposed above the first paper feeding cassette so as to be movable forward and backward with respect to the paper feeding roller and has a second accommodating portion capable of accommodating the recording medium, a recording unit that performs printing on the recording medium, a control unit that controls the paper feeding means, and a detection unit that detects the second paper feeding cassette. The control unit moves the paper feeding roller up and down to any one of a first paper feeding position where the recording medium is fed from the first paper feeding cassette, a second paper feeding position where the recording medium is fed from the second paper feeding cassette, and a stop position where the paper feeding roller does not contact the recording medium, based on the detection result of the detection unit.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0008] FIG. 1 shows the appearance of the printer 1. The printer 1 is a multifunction device having a scanner unit 3 described later. The printer 1 prints an image or the like on a sheet P. The sheet P used in the printer 1 is plain paper, single-sided photo printing paper, double-sided photo printing paper, synthetic paper, or the like. The sheet P corresponds to an example of a recording medium. The printer 1 includes a housing 2, a document cover 4, an operation panel 5, a manual feed cover 6, and a tray cover 9. FIG. 1 shows the appearance of the printer 1 with the tray cover 9 closed. The printer 1 corresponds to an example of a recording device.

[0009] A plurality of figures including FIG. 1 show an XYZ coordinate system. The X-axis is an axis orthogonal to the direction in which the lower tray 50 and the upper tray 60 described later are inserted. The +X direction is the direction from the right to the left of the printer 1 when the surface on which the operation panel 5 of the printer 1 is arranged is taken as the front surface. The -X direction is the direction from the left to the right of the printer 1. The Y-axis is an axis parallel to the direction in which the lower tray 50 and the upper tray 60 are inserted. The +Y direction is the direction from the rear to the front of the printer 1. The -Y direction is the direction from the front to the rear of the printer 1. The Z-axis is an axis perpendicular to the installation surface of the printer 1. The +Z direction is the direction upward from the installation surface of the printer 1. The -Z direction is the direction from above the printer 1 toward the installation surface.

[0010] The housing 2 houses each unit of the printer 1 and the like. The housing 2 may be composed of one member or a plurality of members. The housing 2 shown in FIG. 1 is configured in a rectangular shape in a plan view from the +Z direction, but is not limited thereto. The shape of the housing 2 is set as appropriate.

[0011] The original cover 4 covers the +Z-direction surface of the scanner unit 3. The original cover 4 is provided so as to be rotatable about a cover rotation axis parallel or substantially parallel to the X axis. FIG. 1 shows a state where the original cover 4 is closed. When the original cover 4 is opened, the user can place the original.

[0012] The operation panel 5 receives various operations by the user. The operation panel 5 is arranged on the front surface of the printer 1. The operation panel 5 has a display for displaying various information to the user. The display may have a touch input function. The operation panel 5 may also have a power button and operation buttons for inputting various settings.

[0013] The manual cover 6 covers the manual tray 7 described later. The manual cover 6 is arranged at a position in the -Y direction on the +Z-direction surface of the printer 1. The manual cover 6 is configured to be openable and closable. The user can open the manual cover 6 and supply the paper P to the manual tray 7.

[0014] The tray cover 9 covers a portion for housing the upper tray 60 and the like. The tray cover 9 is arranged on the front surface of the printer 1. The tray cover 9 is arranged at a position in the -Z direction of the operation panel 5. The tray cover 9 is configured to be openable and closable. The tray cover 9 shown in FIG. 1 is in a closed state.

[0015] FIG. 2 shows the appearance of the printer 1. FIG. 2 shows the printer 1 with the tray cover 9 opened. The user opens the tray cover 9 and feeds paper to the lower tray 50 and the upper tray 60. The tray cover 9 is provided at a position in the +Y direction of the lower tray 50.

[0016] The lower tray 50 accommodates a plurality of sheets of paper P in the lower tray accommodating portion 51. The lower tray accommodating portion 51 will be described later. The lower tray 50 is disposed at the -Z direction position of the housing 2. The lower tray 50 is configured to be detachable from the housing 2. When the user moves the lower tray 50 in the +Y direction, the lower tray 50 is removed from the housing 2. When the user inserts the lower tray 50 in the -Y direction, the lower tray 50 is attached to the housing 2. The lower tray 50 corresponds to an example of the first paper feed cassette. The lower tray accommodating portion 51 corresponds to an example of the first accommodating portion.

[0017] The upper tray 60 accommodates a plurality of sheets of paper P in the upper tray accommodating portion 61. The upper tray accommodating portion 61 will be described later. The upper tray 60 is disposed at the +Z direction position above the lower tray 50. The upper tray 60 is configured to be detachable from the housing 2. When the user moves the upper tray 60 in the +Y direction, the upper tray 60 is removed from the housing 2. When the user inserts the upper tray 60 in the -Y direction, the upper tray 60 is attached to the housing 2. The upper tray 60 is configured to be able to move forward and backward along the Y axis within the printer 1. The upper tray 60 corresponds to an example of the second paper feed cassette. The upper tray accommodating portion 61 corresponds to an example of the second accommodating portion.

[0018] FIG. 3 shows a schematic configuration of the printer 1. FIG. 3 shows a Y-Z cross section of the printer 1. The printer 1 includes a scanner unit 3 at the +Z direction position. The printer 1 includes a manual feed tray 7 and a paper discharge receiving tray 8. The printer 1 includes a feed roller 10, a separation slope 16, an intermediate roller 17, a conveyance drive roller 24, a conveyance driven roller 25, a support member 28, a print head 30, a discharge drive roller 34, and a discharge driven roller 35 along the conveyance path of the sheet P. FIG. 3 shows the lower tray 50 and the upper tray 60 that accommodate the sheet P.

[0019] The scanner unit 3 reads the document. The scanner unit 3 is arranged at the position in the +Z direction of the printer 1. The scanner unit 3 is configured to be rotatable about a scanner rotation axis (not shown). The scanner unit 3 moves to the open position or the closed position by rotating. FIG. 3 shows the scanner unit 3 in the closed position. The scanner unit 3 has a document table 3a.

[0020] The document table 3a places the document. The scanner unit 3 reads the document placed on the document table 3a. The document table 3a is made of a light-transmissive glass or the like. The document table 3a is covered by a document cover 4.

[0021] The manual feed tray 7 places the paper P fed manually. The manual feed tray 7 is provided at the position in the +Z direction in the -Y direction of the printer 1. The manual feed tray 7 is covered by an openable and closable manual feed cover 6. When the manual feed cover 6 is opened, the manual feed tray 7 can place the paper P.

[0022] The paper discharge receiving tray 8 places the paper P printed by the print head 30. The paper discharge receiving tray 8 is configured to be movable by a paper discharge receiving tray motor (not shown). The paper discharge receiving tray 8 can be moved along the Y axis by the paper discharge receiving tray motor. When the paper discharge receiving tray 8 moves to the +Y direction position, it can receive the paper P.

[0023] The feed roller 10 feeds the paper P accommodated in the lower tray 50 or the upper tray 60 toward the intermediate roller 17. The feed roller 10 contacts the paper P accommodated in the lower tray 50 or the upper tray 60. The feed roller 10 feeds the paper P by rotating. The feed roller 10 is made of a rubber material such as ethylene propylene rubber. The feed roller 10 corresponds to an example of a paper feed roller. The feed roller 10 is attached to the roller support member 11 via the roller support shaft 10a. The roller support shaft 10a rotatably supports the feed roller 10.

[0024] The roller support member 11 has a feed roller 10 and a roller support shaft 10a. The roller support member 11 rotatably supports the feed roller 10 via the roller support shaft 10a. The roller support shaft 10a corresponds to an example of a rotation drive shaft. The roller support member 11 corresponds to an example of a paper feeding means. The roller support member 11 is supported so as to be swingable about a rotation shaft 12.

[0025] The rotation shaft 12 swingably supports the roller support member 11. By the rotation shaft 12 swingably supporting the roller support member 11, the feed roller 10 can contact the paper P accommodated in the lower tray 50 and the upper tray 60.

[0026] The separation slope 16 separates a plurality of papers P conveyed by the feed roller 10. When the feed roller 10 conveys two papers P toward the separation slope 16 as an example, the separation slope 16 contacts the paper P. The separation slope 16 separates the two papers P and moves the paper P at the +Z direction position toward the intermediate roller 17. The separation slope 16 is arranged at the -Y direction position of the lower tray 50 and the upper tray 60.

[0027] The intermediate roller 17 conveys the paper P in a predetermined direction. The intermediate roller 17 is rotationally driven by a feed motor (not shown). The intermediate roller 17 conveys the paper P separated by the separation slope 16 toward the print head 30. The intermediate roller 17 reversely conveys the paper P printed by the print head 30 toward the print head 30. The printer 1 can print on both sides of the paper P. On the circumferential surface of the intermediate roller 17, a first driven roller 18, a second driven roller 19, a third driven roller 20, and a fourth driven roller 21 are arranged.

[0028] The first driven roller 18 contacts the intermediate roller 17. The first driven roller 18 sandwiches the paper P at the nip with the intermediate roller 17 and conveys the paper P. The first driven roller 18 is arranged at the -Z direction position of the intermediate roller 17.

[0029] The second driven roller 19 contacts the intermediate roller 17. The second driven roller 19 sandwiches the sheet P at the nip with the intermediate roller 17 and conveys the sheet P. The second driven roller 19 is disposed at the -Y direction position of the intermediate roller 17.

[0030] The third driven roller 20 contacts the intermediate roller 17. The third driven roller 20 sandwiches the sheet P at the nip with the intermediate roller 17 and conveys the sheet P. The third driven roller 20 conveys the sheet P conveyed by the intermediate roller 17 and the second driven roller 19 toward the print head 30.

[0031] The fourth driven roller 21 contacts the intermediate roller 17. The fourth driven roller 21 sandwiches the sheet P at the nip with the intermediate roller 17 and conveys the sheet P. The fourth driven roller 21 conveys the sheet P conveyed by the intermediate roller 17 and the third driven roller 20 toward the print head 30.

[0032] The conveyance drive roller 24 conveys the sheet P conveyed by the intermediate roller 17 toward the print head 30. The conveyance drive roller 24 conveys the sheet P printed by the print head 30 toward the intermediate roller 17. The conveyance drive roller 24 is rotationally driven in the first direction or the second direction opposite to the first direction by a conveyance motor (not shown).

[0033] The conveyance driven roller 25 contacts the conveyance drive roller 24. The conveyance driven roller 25 is driven to rotate passively in response to the rotational drive of the conveyance drive roller 24. The conveyance driven roller 25 sandwiches the sheet P at the nip with the conveyance drive roller 24 and conveys the sheet P.

[0034] The support member 28 supports the sheet P. The support member 28 is disposed at the -Z direction position of the print head 30. The support member 28 supports the sheet P at a position facing the print head 30. The sheet P supported by the support member 28 is printed by the print head 30.

[0035] The print head 30 prints on the paper P. The print head 30 performs printing on the paper P by discharging ink onto the paper P. The print head 30 corresponds to an example of a recording unit. The print head 30 is supported by a carriage 31.

[0036] The carriage 31 supports the print head 30. The carriage 31 supports the print head 30 so as to be movable along the X-axis. The carriage 31 moves the print head 30 in the +X direction or the -X direction.

[0037] The discharge drive roller 34 discharges the paper P printed by the print head 30 toward the paper discharge receiving tray 8. The discharge drive roller 34 is rotationally driven by a paper discharge motor (not shown). The discharge drive roller 34 is disposed at the position in the +Y direction of the support member 28.

[0038] The discharge driven roller 35 contacts the discharge drive roller 34. The discharge driven roller 35 rotates in a driven manner in response to the rotational drive of the discharge drive roller 34. The discharge driven roller 35 sandwiches the paper P at the nip with the discharge drive roller 34 and discharges the paper P toward the paper discharge receiving tray 8.

[0039] The lower tray 50 shown in FIG. 3 houses a first paper P1 which is an example of the paper P in the lower tray housing portion 51. The lower tray housing portion 51 can house the paper P including the first paper P1. The lower tray housing portion 51 houses a plurality of first papers P1. A lower tray edge guide 52 is provided on the lower tray 50.

[0040] The lower tray edge guide 52 regulates the position of the edge of the first paper P1 housed in the lower tray housing portion 51. The lower tray edge guide 52 regulates the position of the edge parallel to the Y-axis of the first paper P1. The lower tray edge guide 52 is configured to be slidably movable along the X-axis.

[0041] The upper tray 60 shown in FIG. 3 houses a second sheet of paper P2, which is an example of the sheet of paper P, within the upper tray housing portion 61. The second sheet of paper P2 may be the same size as the first sheet of paper P1 or may be a different size. The second sheet of paper P2 may be the same type as the first sheet of paper P1 or may be a different type. It is preferable that the second sheet of paper P2 is a different size or a different type from the first sheet of paper P1. The upper tray housing portion 61 can house the sheet of paper P including the second sheet of paper P2. The upper tray housing portion 61 houses a plurality of second sheets of paper P2. An upper tray edge guide 62 is provided on the upper tray 60.

[0042] The upper tray edge guide 62 regulates the position of the edge of the second sheet of paper P2 housed in the upper tray housing portion 61. The upper tray edge guide 62 regulates the position of the edge parallel to the Y-axis of the second sheet of paper P2. The upper tray edge guide 62 is configured to be slidable along the X-axis.

[0043] The lower tray 50 and the upper tray 60 are housed in the tray housing portion 49. The tray housing portion 49 is provided at the -Z direction position of the printer 1. The tray housing portion 49 is the internal space of the printer 1 that houses the lower tray 50 and the upper tray 60.

[0044] FIG. 3 shows the printer 1 with the upper tray 60 disposed at the retracted position. When the user mounts the upper tray 60 into the tray housing portion 49, the upper tray 60 is mounted at the retracted position. When the upper tray 60 is mounted at the retracted position, it is detected by an upper tray detection unit 81, which will be described later, that the upper tray 60 has been mounted.

[0045] The retracted position is a position where the second sheet of paper P2 housed in the upper tray 60 is not conveyed by the feed roller 10. The retracted position is a position in the +Y direction from the feed roller 10. When the upper tray 60 is disposed at the retracted position, the feed roller 10 does not contact the second sheet of paper P2 housed in the upper tray 60.

[0046] When the upper tray 60 is disposed at the retracted position, the paper feed roller 10 is positioned at the first swing position RP1 where it contacts the first sheet P1 accommodated in the lower tray 50. The roller support member 11 swings about the rotation shaft 12, and the paper feed roller 10 moves to the first swing position RP1. The first swing position RP1 is the position where the paper feed roller 10 feeds the first sheet P1 from the lower tray 50. The first swing position RP1 corresponds to an example of the first paper feed position.

[0047] FIG. 4 shows a schematic configuration around the roller support member 11. FIG. 4 shows a schematic configuration around the roller support member 11 when the upper tray 60 is disposed at the retracted position. FIG. 4 shows a state where the sheet P is not accommodated in the lower tray 50 and the upper tray 60. The paper feed roller 10 shown in FIG. 4 is in contact with the +Z direction surface of the lower tray 50. FIG. 4 shows the paper feed roller 10, the roller support member 11, the rotation shaft 12, the transmission gear group 13, the cam shaft 45, the cam follower portion 46, the cam portion 47, the lower tray 50, and the upper tray 60. The upper tray 60 has a tray tip portion 60a.

[0048] The paper feed roller 10 is rotatably supported by the roller support member 11. Two paper feed rollers 10 are supported by the roller support member 11. The roller support member 11 shown in FIG. 4 supports two paper feed rollers 10, but is not limited to this configuration. The number of paper feed rollers 10 can be set as appropriate.

[0049] The roller support member 11 supports the paper feed roller 10 so as to be vertically movable about the rotation shaft 12. When the roller support member 11 swings, the paper feed roller 10 moves up and down. The roller support member 11 supports the transmission gear group 13.

[0050] The transmission gear group 13 transmits power to the paper feed roller 10. The transmission gear group 13 receives the power of a paper feed motor (not shown) and rotates. By rotationally driving, the transmission gear group 13 rotates the paper feed roller 10.

[0051] The camshaft 45 supports the cam follower portion 46 and the cam portion 47. The camshaft 45 is arranged along the X-axis. The camshaft 45 supports the cam follower portion 46 at the -X direction end. The camshaft 45 supports the cam portion 47 at the +X direction end.

[0052] The cam follower portion 46 is provided at a position where it can engage with the tray tip portion 60a of the upper tray 60. When the cam follower portion 46 engages with the tray tip portion 60a, it rotates in a predetermined direction. When the upper tray 60 is arranged at the retracted position, the cam follower portion 46 does not contact the tray tip portion 60a. FIG. 4 shows a state where the cam follower portion 46 and the tray tip portion 60a are not in contact.

[0053] The cam portion 47 is provided at a position where it can engage with the roller support member 11. When the cam portion 47 engages with the roller support member 11, the roller support member 11 is pushed up by the cam portion 47 and swings about the pivot axis 12. FIG. 4 shows a state where the roller support member 11 is not pushed up by the cam portion 47.

[0054] FIG. 5 shows a schematic configuration of the printer 1. FIG. 5 shows a Y-Z cross section of the printer 1. FIG. 5 shows the printer 1 with the upper tray 60 arranged at the feedable position. The upper tray 60 moves forward and backward along the Y-axis by a tray drive mechanism 73 described later. The upper tray 60 moves in the +Y direction or -Y direction by the tray drive mechanism 73. When the tray drive mechanism 73 moves the upper tray 60 in the -Y direction, the upper tray 60 moves to the feedable position.

[0055] The feedable position is a position where the second sheet P2 accommodated in the upper tray 60 is conveyed by the feed roller 10. The feedable position is a position in the -Y direction from the retracted position. When the upper tray 60 is arranged at the feedable position, the feed roller 10 contacts the second sheet P2 accommodated in the upper tray 60. The feed roller 10 does not contact the first sheet P1 accommodated in the lower tray 50.

[0056] When the upper tray 60 is disposed at the feedable position, the feed roller 10 is positioned at the second swing position RP2 in contact with the second sheet P2 accommodated in the upper tray 60. The roller support member 11 swings about the rotation axis 12, and the feed roller 10 moves up and down to the second swing position RP2. The second swing position RP2 is the position where the feed roller 10 feeds the second sheet P2 from the upper tray 60. The second swing position RP2 corresponds to an example of the second paper feed position.

[0057] FIG. 6 shows a schematic configuration around the roller support member 11. FIG. 6 shows a schematic configuration around the roller support member 11 when the upper tray 60 is disposed at the feedable position. FIG. 6 shows a state where the sheet P is not accommodated in the upper tray 60. The feed roller 10 shown in FIG. 6 is in contact with the +Z direction surface of the upper tray 60. At the -X direction end position of the upper tray 60, a tray end upper surface 60b, a tray slope 60c, and a tray recess 60d are formed. The tray end upper surface 60b is a surface parallel or substantially parallel to the X-Y plane. The tray slope 60c slopes in the -Z direction toward the +Y direction. The tray recess 60d is a surface in the -Z direction relative to the tray end upper surface 60b.

[0058] When the upper tray 60 is moved by the tray drive mechanism 73 from the retracted position toward the feedable position, the cam follower portion 46 engages with the tray tip portion 60a. After the cam follower portion 46 engages with the tray tip portion 60a, it contacts the tray end upper surface 60b. When the upper tray 60 continues to move in the -Y direction, the cam follower portion 46 contacts the tray slope 60c. After the cam follower portion 46 contacts the tray slope 60c, it contacts the tray recess 60d. While the upper tray 60 moves from the retracted position to the feedable position, the cam follower portion 46 contacts the tray tip portion 60a, the tray end upper surface 60b, the tray slope 60c, and the tray recess 60d in this order. Depending on the position where the cam follower portion 46 contacts, the roller support member 11 swings about the rotation axis 12. When the roller support member 11 swings, the position of the feed roller 10 along the Z axis changes. Depending on the position of the upper tray 60 along the Y axis, the position of the feed roller 10 along the Z axis changes.

[0059] Figure 6 shows the state when the cam follower portion 46 moves to the tray recess 60d. When the upper tray 60 is disposed at the feedable position, the cam follower portion 46 comes into contact with the tray recess 60d. When the cam follower portion 46 comes into contact with the tray recess 60d, the feed roller 10 is positioned at the second swing position RP2. When the feed roller 10 is positioned at the second swing position RP2, it can come into contact with the second sheet P2 accommodated in the upper tray 60.

[0060] Figure 7 shows a schematic configuration of the printer 1. Figure 7 shows a Y-Z cross section of the printer 1. Figure 7 shows the printer 1 with the upper tray 60 disposed at the intermediate position. The upper tray 60 moves forward and backward along the Y-axis by a tray drive mechanism 73. The upper tray 60 moves to the intermediate position by the tray drive mechanism 73. When the printer 1 is not executing printing, the upper tray 60 is stopped at the intermediate position.

[0061] The intermediate position is a position between the retracted position along the Y-axis and the feedable position. When the upper tray 60 is disposed at the intermediate position, the feed roller 10 does not come into contact with the first sheet P1 accommodated in the lower tray 50. When the upper tray 60 is positioned at the intermediate position, the feed roller 10 does not come into contact with the second sheet P2 accommodated in the upper tray 60. The intermediate position is a position in the -Y direction from the retracted position and a position in the +Y direction from the feedable position.

[0062] When the upper tray 60 is disposed at the intermediate position, the feed roller 10 is positioned at the third swing position RP3. When the feed roller 10 is positioned at the third swing position RP3, it does not come into contact with the first sheet P1 accommodated in the lower tray 50. When the feed roller 10 is positioned at the third swing position RP3, it does not come into contact with the second sheet P2 accommodated in the upper tray 60. When the roller support member 11 swings about the rotation shaft 12, the feed roller 10 moves up and down to the third swing position RP3. When the upper tray 60 stops at the intermediate position, the feed roller 10 stops at the third swing position RP3. The third swing position RP3 corresponds to an example of a stop position.

[0063] After the printer 1 executes printing, the paper feed roller 10 is stopped at the third swing position RP3. The paper feed roller 10 stops at the third swing position RP3. When the printer 1 is not executing a printing operation, the paper feed roller 10 is maintained in a state of not contacting the paper P. By the paper feed roller 10 not continuously contacting the paper P, it becomes difficult for bleed marks to occur on the paper P. Bleed marks may occur depending on the combination of the material of the paper feed roller 10 and the surface material of the paper P. As an example, when the paper P is double-sided photo printing paper, bleed marks are likely to occur. Double-sided photo printing paper has resin layers on both the front and back surfaces. Depending on the combination of the resin layer and the material of the paper feed roller 10, bleed marks are likely to occur. By stopping the paper feed roller 10 at a position where it does not contact the paper P when the printer 1 stops, the occurrence of bleed marks can be suppressed.

[0064] FIG. 8 shows a schematic configuration around the roller support member 11. FIG. 8 shows a schematic configuration around the roller support member 11 when the upper tray 60 is disposed at the intermediate position. FIG. 8 shows a state in which the paper P is not accommodated in the upper tray 60. The paper feed roller 10 shown in FIG. 8 is not in contact with the lower tray 50 and the upper tray 60.

[0065] The cam follower portion 46 is in contact with the upper surface 60b of the tray end. When the cam follower portion 46 contacts the upper surface 60b of the tray end, the roller support member 11 is pushed up to the third swing position RP3 by the cam portion 47. The third swing position RP3 is a position in the +Z direction relative to the second sheet P2 accommodated in the upper tray accommodating portion 61.

[0066] The third swing position RP3 only needs to be a position where it does not contact the paper P accommodated in the lower tray 50 and the upper tray 60. The third swing position RP3 is preferably at a position in the +Z direction higher than the position of the paper P accommodated in the upper tray 60. When the third swing position RP3 is at a position in the +Z direction higher than the position of the paper P accommodated in the upper tray 60, it becomes difficult for the paper feed roller 10 to contact the paper P during the movement of the upper tray 60. If the paper feed roller 10 contacts the paper P during the movement of the upper tray 60, the placement position of the paper P fluctuates. When the placement position of the paper P fluctuates, the position of the image printed on the paper P may fluctuate.

[0067] FIG. 9 shows the block configuration of the printer 1. The printer 1 includes a communication unit 71, a tray drive mechanism 73, a paper feed mechanism 75, a conveyance mechanism 77, a print head drive mechanism 79, an upper tray detection unit 81, a control unit 100, and a data memory 110. The printer 1 may include a paper detection unit 83 and a buffer memory 112.

[0068] The communication unit 71 is an interface circuit for communicating with an external device. The communication unit 71 is connected to the external device by wire or wirelessly according to a predetermined communication protocol. The communication unit 71 includes a wired connector, a wireless communication port, etc. The wired connector is a USB (Universal Serial Bus) connector, a LAN (Local Area Network) connector, etc. The wireless communication port is a Wi-Fi communication port, a Bluetooth communication port, etc. Wi-Fi and Bluetooth are registered trademarks. The communication unit 71 receives print data from the external device. The print data includes various settings such as a print instruction and paper settings. The communication unit 71 transmits a print processing result, etc. to the external device.

[0069] The tray drive mechanism 73 moves the upper tray 60 along the Y-axis or an axis substantially parallel to the Y-axis. The Y-axis or an axis substantially parallel to the Y-axis corresponds to an example of a slide axis. The tray drive mechanism 73 is composed of a tray drive motor (not shown), a drive transmission mechanism, etc. The tray drive mechanism 73 moves the upper tray 60 in the +Y direction or the -Y direction. The tray drive mechanism 73 moves the upper tray 60 to any one of a retracted position, a feedable position, and an intermediate position based on the detection result of the upper tray detector 81. The tray drive mechanism 73 stops the upper tray 60 at any one of the retracted position, the feedable position, and the intermediate position. The tray drive mechanism 73 corresponds to an example of a driving means.

[0070] When the tray drive mechanism 73 moves the upper tray 60, the feeding roller 10 moves up and down in conjunction with the movement of the upper tray 60. When the upper tray 60 swings the roller support member 11, the feeding roller 10 moves up and down. When the tray drive mechanism 73 stops the upper tray 60 at the retracted position, the feeding roller 10 stops at the first swing position RP1. When the tray drive mechanism 73 stops the upper tray 60 at the feedable position, the feeding roller 10 stops at the second swing position RP2. When the tray drive mechanism 73 stops the upper tray 60 at the intermediate position, the feeding roller 10 stops at the third swing position RP3.

[0071] The tray drive mechanism 73 may stop the upper tray 60 at a position different from the retracted position, the feedable position, and the intermediate position. As an example, the tray drive mechanism 73 moves the upper tray 60 to a second intermediate position different from the intermediate position. The tray drive mechanism 73 stops the upper tray 60 at the second intermediate position. The second intermediate position may be a position closer to the retracted position than the intermediate position along the Y-axis. The second intermediate position may be a position closer to the feedable position than the intermediate position along the Y-axis.

[0072] When the tray drive mechanism 73 stops the upper tray 60 at the second intermediate position, the paper feed roller 10 stops at the fourth swing position. The fourth swing position is a position different from the first swing position RP1, the second swing position RP2, and the third swing position RP3. When the tray drive mechanism 73 moves the upper tray 60 to the second intermediate position, the paper feed roller 10 moves up and down and stops at the second intermediate position. When the second intermediate position is, as an example, a position closer to the retracted position than the intermediate position along the Y-axis, the fourth swing position is in the -Z direction position from the third swing position RP3. The fourth swing position corresponds to an example of the second stop position.

[0073] The paper feed mechanism 75 feeds the paper P into the printer 1. The paper feed mechanism 75 feeds the first paper P1 accommodated in the lower tray 50 into the printer 1. The paper feed mechanism 75 feeds the second paper P2 accommodated in the upper tray 60 into the printer 1. The paper feed mechanism 75 is composed of a transmission gear group 13 and a paper feed motor. The paper feed mechanism 75 drives the paper feed roller 10.

[0074] The conveyance mechanism 77 conveys the paper P in the printer 1. The conveyance mechanism 77 conveys the first paper P1 or the second paper P2 toward the print head 30. The conveyance mechanism 77 may reversely convey the first paper P1 or the second paper P2 from the position facing the print head 30 toward the intermediate roller 17. The conveyance mechanism 77 is composed of a conveyance motor, a paper discharge motor, a drive transmission member, etc. The conveyance mechanism 77 drives a conveyance drive roller 24, a discharge drive roller 34, etc.

[0075] The print head drive mechanism 79 drives the print head 30 and the carriage 31. The print head drive mechanism 79 causes the print head 30 to discharge ink. The print head drive mechanism 79 drives the carriage 31. The print head drive mechanism 79 moves the print head 30 along the X-axis by driving the carriage 31. The print head drive mechanism 79 causes the print head 30 to execute printing based on print data.

[0076] The upper tray detection unit 81 detects the upper tray 60. The upper tray detection unit 81 detects the presence or absence of the upper tray 60 at the retracted position. The upper tray detection unit 81 transmits the detection result to the control unit 100. By the upper tray detection unit 81 detecting that the upper tray 60 is at the retracted position, the control unit 100 can confirm that the upper tray 60 is attached to the printer 1. The upper tray detection unit 81 is composed of an optical sensor or the like. The upper tray detection unit 81 corresponds to an example of a detection unit.

[0077] The upper tray detection unit 81 may detect the position of the upper tray 60. The upper tray detection unit 81 detects the position of the upper tray 60 along the Y-axis. As an example, the upper tray detection unit 81 is composed of an optical sensor and an encoder. The optical sensor detects the presence or absence of the upper tray 60 at a predetermined reference position such as the retracted position or the intermediate position. The encoder detects the distance that the upper tray 60 has moved along the Y-axis from the reference position. Using the distance from the reference position detected by the encoder, the upper tray detection unit 81 detects the position of the upper tray 60. The upper tray detection unit 81 may be composed of a plurality of optical sensors, a distance measuring sensor, or the like.

[0078] The paper detection unit 83 detects the presence or absence of the paper P fed into the printer 1 from the lower tray 50 or the upper tray 60. As an example, the paper detection unit 83 detects the paper P discharged to the paper discharge receiving tray 8. By the paper detection unit 83 detecting that the paper P has been discharged to the paper discharge receiving tray 8, it detects that there is no paper P in the printer 1. The paper detection unit 83 transmits detection data indicating the detected result to the control unit 100. The paper detection unit 83 is composed of an optical sensor, a weight sensor, or the like. As an example, the paper detection unit 83 is arranged between the discharge drive roller 34 and the paper discharge receiving tray 8 along the conveyance path of the paper P.

[0079] The control unit 100 is a controller that controls the printer 1. The control unit 100 is, for example, a processor having a CPU (Central Processing Unit). The control unit 100 is composed of one or more processors. The control unit 100 operates as various functional units by executing a control program. The control unit 100 functions as a paper feed control unit 101, a printing control unit 103, and an operation detection unit 105 by executing a control program. The control unit 100 may function as a functional unit other than the paper feed control unit 101, the printing control unit 103, and the operation detection unit 105 by executing a control program. The control unit 100 corresponds to an example of a control unit.

[0080] The paper feed control unit 101 controls the roller support member 11. The paper feed control unit 101 controls the roller support member 11 by controlling the tray drive mechanism 73. The paper feed control unit 101 moves the upper tray 60 by operating the tray drive mechanism 73. The paper feed control unit 101 swings the roller support member 11 in conjunction with the movement of the upper tray 60. The paper feed control unit 101 moves the paper feed roller 10 up and down by swinging the roller support member 11. The paper feed control unit 101 moves the paper feed roller 10 up and down to any one of the first swing position RP1, the second swing position RP2, and the third swing position RP3. The paper feed control unit 101 stops the paper feed roller 10 at any one of the first swing position RP1, the second swing position RP2, and the third swing position RP3. The paper feed control unit 101 may rotate the paper feed roller 10 to the fourth swing position and stop it.

[0081] The paper feed control unit 101 controls the roller support member 11 based on print data. The print data is transmitted from an external device to the control unit 100 via the communication unit 71. The print data includes paper settings, the number of printed sheets, single-sided / double-sided instructions, paper feed commands, etc. The print data is stored in the data memory 110. The print data corresponds to an example of a paper feed job.

[0082] The paper feed control unit 101 moves the paper feed roller 10 up and down based on the detection result of the upper tray detector 81. The paper feed control unit 101 receives the detection result from the upper tray detector 81. The paper feed control unit 101 checks the presence or absence of the upper tray 60 at the retracted position based on the detection result. After confirming that the upper tray 60 is at the retracted position, the paper feed control unit 101 moves the upper tray 60 to the paper feedable position or the intermediate position. The paper feed control unit 101 may move the upper tray 60 to the second intermediate position. The paper feed control unit 101 stops the upper tray 60 at any of the paper feedable position, the intermediate position, and the second intermediate position. After confirming that the upper tray 60 is at the retracted position, the paper feed control unit 101 maintains the stop of the upper tray 60 at the retracted position.

[0083] The paper feed control unit 101 moves the upper tray 60 based on the detection result of the upper tray detector 81, thereby moving the paper feed roller 10 up and down to any of the first swing position RP1, the second swing position RP2, and the third swing position RP3. The paper feed control unit 101 may move up and down to the fourth swing position.

[0084] When the upper tray detector 81 detects the position of the upper tray 60 along the Y-axis, the paper feed control unit 101 controls the position of the upper tray 60 based on the detected position of the upper tray 60. The paper feed control unit 101 moves the paper feed roller 10 up and down based on the position of the upper tray 60.

[0085] The paper feed control unit 101 makes the first sheet P1 accommodated in the lower tray 50 feedable by stopping the upper tray 60 at the retracted position. The paper feed control unit 101 makes the second sheet P2 accommodated in the upper tray 60 feedable by stopping the upper tray 60 at the paper feedable position. The paper feed control unit 101 selects the sheet P to be fed into the printer 1. The paper feed control unit 101 selects the lower tray 50 or the upper tray 60 according to the sheet setting included in the print data.

[0086] When the printing process is completed, the feeding control unit 101 moves the upper tray 60 to the intermediate position. The feeding control unit 101 determines that the printing process is completed based on the printing completion flag from the operation detection unit 105. When the feeding control unit 101 determines that the printing process is completed, it moves the upper tray 60 to the intermediate position. The feeding control unit 101 stops the upper tray 60 at the intermediate position. By stopping the upper tray 60 at the intermediate position, the feeding control unit 101 stops the feeding roller 10 at the third swing position RP3.

[0087] The printing control unit 103 controls the printing by the print head 30. The printing control unit 103 controls the transport mechanism 77 and the print head drive mechanism 79 to cause the print head 30 to perform printing. By controlling the transport mechanism 77, the printing control unit 103 causes single-sided printing or double-sided printing to be performed on the paper P. By controlling the print head drive mechanism 79, the printing control unit 103 causes an image to be printed on the paper P.

[0088] The operation detection unit 105 determines whether the printing process has ended. When the operation detection unit 105 determines that the printing process has ended, it generates a printing end flag. The printing end flag is data indicating that the printing process has ended. The operation detection unit 105 transmits the printing end flag to the feeding control unit 101. As an example, the operation detection unit 105 generates a printing end flag when it receives detection data from the paper detection unit 83. The operation detection unit 105 may detect the feeding operation of the paper P by the feeding roller 10. The operation detection unit 105 detects whether the paper feeding operation from the lower tray 50 or the upper tray 60 has ended. When the operation detection unit 105 detects that the feeding operation has ended, it generates a printing end flag. The operation detection unit 105 may detect the printing data stored in the buffer memory 112. The operation detection unit 105 detects whether printing data is stored in the buffer memory 112. When the operation detection unit 105 detects that no printing data is stored in the buffer memory 112, it generates a printing end flag. The operation detection unit 105 transmits the generated printing end flag to the feeding control unit 101. The feeding control unit 101 moves the feeding roller 10 up and down based on the printing end flag. When the feeding control unit 101 receives the printing end flag, the feeding roller 10 stops at the third swing position RP3.

[0089] The data memory 110 stores various programs, various data, etc. The data memory 110 stores the printing data transmitted from an external device. The data memory 110 is composed of a volatile semiconductor memory such as a RAM (Random Access Memory), a non-volatile memory such as a ROM (Read Only Memory), a flash memory, etc.

[0090] The buffer memory 112 stores print data in units of one job. The print data in units of one job is, for example, print data for printing on one sheet of paper P. The print data is divided into job units and stored in the buffer memory 112. The operation detection unit 105 detects whether print data is stored in the buffer memory 112. When no print data is stored in the buffer memory 112, the operation detection unit 105 determines that the printing process has ended. The operation detection unit 105 can detect whether the printing process has ended by detecting whether print data is stored in the buffer memory 112.

[0091] The printer 1 includes a feed roller 10 that contacts the paper P, a roller support member 11 having a roller support shaft 10a that supports the feed roller 10, a lower tray 50 having a lower tray storage portion 51 capable of accommodating the paper P, an upper tray 60 that is disposed above the lower tray 50 and is movable forward and backward with respect to the feed roller 10 and has an upper tray storage portion 61 capable of accommodating the paper P, a print head 30 that prints on the paper P, a control unit 100 that controls the roller support member 11, and an upper tray detection unit 81 that detects the upper tray 60. The control unit 100 moves the feed roller 10 up and down to any one of a first swing position RP1 for feeding the paper P from the lower tray 50, a second swing position RP2 for feeding the paper P from the upper tray 60, and a third swing position RP3 where the feed roller 10 does not contact the paper P, based on the detection result of the upper tray detection unit 81. The printer 1 can stop the feed roller 10 at a position where it does not contact the paper P.

[0092] Figure 10 shows the control flow of the printer 1. Figure 10 shows the control flow in a flowchart. Figure 10 shows the control flow that is executed when print data is received from an external device. The control flow corresponds to an example of a control method of the printer 1.

[0093] In step S101, printer 1 receives print data. The communication unit 71 of printer 1 receives the print data from an external device. The communication unit 71 transmits the print data to the control unit 100 and the data memory 110. The print data is expanded into print data in job units and stored in the buffer memory 112.

[0094] After receiving the print data, in step S103, printer 1 detects whether the upper tray 60 is placed at the retracted position. The upper tray detection unit 81 determines whether the upper tray 60 is placed at the retracted position. The upper tray detection unit 81 may determine whether the upper tray 60 is placed at the retracted position after the tray drive mechanism 73 moves the upper tray 60 in the +Y direction for a predetermined time. When it is detected by the upper tray detection unit 81 that the upper tray 60 is not placed at the retracted position, printer 1 proceeds to step S105 (step S103: NO). When it is detected by the upper tray detection unit 81 that the upper tray 60 is placed at the retracted position, printer 1 proceeds to step S107 (step S103: YES). Printer 1 determines that the upper tray 60 is mounted.

[0095] In step S105, printer 1 determines that the upper tray 60 is not mounted on printer 1. Printer 1 can perform printing processing in a state where the upper tray 60 is not mounted. When the paper setting included in the print data is the first sheet P1 accommodated in the lower tray 50, printer 1 performs printing processing on the first sheet P1 accommodated in the lower tray 50. When the paper setting included in the print data is not the first sheet P1 accommodated in the lower tray 50, printer 1 issues an error notification.

[0096] In step S107, printer 1 determines whether it is lower tray printing. Lower tray printing is the printing process for the first sheet P1 stored in the lower tray 50. Upper tray printing is the printing process for the second sheet P2 stored in the upper tray 60. Printer 1 determines whether it is lower tray printing or upper tray printing using the paper settings or tray settings included in the print data. When printer 1 performs lower tray printing based on the print data, it proceeds to step S109 (step S107: YES). When printer 1 performs upper tray printing based on the print data, it proceeds to step S111 (step S107: NO).

[0097] In step S109, printer 1 stops the feed roller 10 at the first swing position RP1. When the upper tray 60 is placed at the retracted position, the feed roller 10 is located at the first swing position RP1. The feed control unit 101 maintains the feed roller 10 at the first swing position RP1. The feed roller 10 contacts the first sheet P1 stored in the lower tray 50 at the first swing position RP1. The feed roller 10 enables the feeding of the first sheet P1 stored in the lower tray 50.

[0098] In step S111, printer 1 stops the feed roller 10 at the second swing position RP2. The tray drive mechanism 73 moves the upper tray 60 from the retracted position to the feedable position. The tray drive mechanism 73 stops the upper tray 60 at the feedable position. When the tray drive mechanism 73 stops the upper tray 60 at the feedable position, the feed roller 10 stops at the second swing position RP2. The feed roller 10 contacts the second sheet P2 stored in the upper tray 60 at the second swing position RP2. The feed roller 10 enables the feeding of the second sheet P2 stored in the upper tray 60.

[0099] After stopping the paper feed roller 10 at the first swing position RP1 or the second swing position RP2, the printer 1 executes the printing process in step S113. The printer 1 performs a printing process on the paper P fed from the lower tray 50 or the upper tray 60. The printer 1 conveys the fed paper P to a position facing the print head 30. The printer 1 uses the print head 30 to print on the paper P. The printer 1 discharges the paper P on which the printing process has been performed to the paper discharge receiving tray 8.

[0100] After the printing process is started, the printer 1 detects whether printing is finished in step S115. The operation detection unit 105 detects whether printing is finished based on whether print data is stored in the buffer memory 112. The operation detection unit 105 may detect whether printing is finished based on whether the paper feeding operation by the roller support member 11 has ended. When the printer 1 detects that printing is finished, it proceeds to step S117 (step S115: YES). When the printer 1 detects that printing is not finished, it returns to step S113 (step S115: NO). The printer 1 continues the printing process.

[0101] After the printing is completed, at step S117, the printer 1 stops the paper feed roller 10 at the third swing position RP3. The paper feed control unit 101 moves the paper feed roller 10 from the first swing position RP1 or the second swing position RP2 to the third swing position RP3. When the print head 30 executes a printing process on the first sheet P1 accommodated in the lower tray 50, the paper feed control unit 101 moves the paper feed roller 10 from the first swing position RP1 to the third swing position RP3. The paper feed control unit 101 moves the paper feed roller 10 to the third swing position RP3 by moving the upper tray 60 from the retracted position to the intermediate position. The paper feed control unit 101 stops the paper feed roller 10 at the third swing position RP3. When the print head 30 executes a printing process on the second sheet P2 accommodated in the upper tray 60, the paper feed control unit 101 moves the paper feed roller 10 from the second swing position RP2 to the third swing position RP3. The paper feed control unit 101 moves the paper feed roller 10 to the third swing position RP3 by moving the upper tray 60 from the paper feedable position to the intermediate position. The paper feed control unit 101 stops the paper feed roller 10 at the third swing position RP3. By stopping the paper feed roller 10 at the third swing position RP3, it becomes possible to avoid bringing the paper feed roller 10 and the sheet P into contact with each other for a long time during the printing standby. The occurrence of bleed marks due to the contact between the paper feed roller 10 and the sheet P is suppressed.

[0102] After the printing process, the paper feed control unit 101 may stop the paper feed roller 10 at the fourth swing position. The fourth swing position is, as an example, a position closer to the first swing position RP1 than the third swing position RP3. When the print head 30 executes a printing process on the first sheet P1 accommodated in the lower tray 50, the paper feed control unit 101 moves the paper feed roller 10 from the first swing position RP1 to the fourth swing position. The paper feed control unit 101 moves the paper feed roller 10 to the fourth swing position by moving the upper tray 60 from the retracted position to the second intermediate position. When receiving print data instructing lower tray printing after the printing is completed, the paper feed control unit 101 can shorten the time for moving the paper feed roller 10 to the first swing position RP1.

[0103] The printer 1 includes a feed roller 10 that contacts the paper P, a roller support member 11 having a roller support shaft 10a that supports the feed roller 10, a lower tray 50 having a lower tray housing portion 51 capable of housing the paper P, an upper tray 60 disposed above the lower tray 50 so as to be movable forward and backward with respect to the feed roller 10 and having an upper tray housing portion 61 capable of housing the paper P, a print head 30 that prints on the paper P, and an upper tray detection unit 81 that detects the upper tray 60. The feed roller 10 moves up and down to any one of a first swing position RP1 for feeding the paper P from the lower tray 50, a second swing position RP2 for feeding the paper P from the upper tray 60, and a third swing position RP3 where it does not contact the paper P, based on the detection result of the upper tray detection unit 81. The feed roller 10 can stop at a position where it does not contact the paper P.

[0104] After it is detected that there is no print data, the feed roller 10 moves from the first swing position RP1 or the second swing position RP2 to the third swing position RP3 and stops at the third swing position RP3. After printing is completed, the feed roller 10 stops at a position where it does not contact the paper P, so the occurrence of bleed marks due to contact between the feed roller 10 and the paper P during print standby is suppressed.

[0105] After the paper feeding operation from the lower tray 50 is completed, the feed roller 10 moves from the first swing position RP1 to the third swing position RP3 and stops at the third swing position RP3. After printing on the first sheet P1 fed from the lower tray 50 is completed, the feed roller 10 stops at a position where it does not contact the first sheet P1. The occurrence of bleed marks due to contact between the feed roller 10 and the first sheet P1 during print standby is suppressed.

[0106] After the paper feeding operation from the upper tray 60 is completed, the feed roller 10 moves from the second swing position RP2 to the third swing position RP3 and stops at the third swing position RP3. After printing on the second sheet P2 fed from the upper tray 60 is completed, the paper feed roller 10 stops at a position where it does not contact the second sheet P2. Generation of bleed marks due to contact between the paper feed roller 10 and the second sheet P2 during printing standby is suppressed.

[0107] The printer 1 includes a tray drive mechanism 73 that moves the upper tray 60 along the Y axis. The paper feed roller 10 moves up and down to a fourth swing position different from the first swing position RP1, the second swing position RP2, and the third swing position RP3, and stops at the fourth swing position. The paper feed roller 10 can stop at a plurality of positions. The printer 1 can stop the paper feed roller 10 in advance at a position that is easy to correspond to the next transmitted print data.

[0108] The printer 1 shown in FIG. 9 moves the paper feed roller 10 up and down by driving the tray drive mechanism 73, but is not limited to this configuration. The printer 1 may include a lifting mechanism that moves the paper feed roller 10 up and down. With the lifting mechanism, the roller support member 11 can swing independently of the movement of the upper tray 60. When the printer 1 includes a lifting mechanism, the printer 1 drives the lifting mechanism based on the detection position of the upper tray 60 detected by the upper tray detection unit 81. Based on the detection position of the upper tray 60, the lifting mechanism suppresses interference between the paper feed roller 10 and the upper tray 60 by moving the paper feed roller 10.

Description of Reference Numerals

[0109] 1... Printer, 2... Housing, 3... Scanner unit, 3a... Document table, 4... Document cover, 5... Operation panel, 6... Manual feed cover, 7... Manual feed tray, 8... Output paper receiving tray, 9... Tray cover, 10... Feeding roller, 10a... Roller support shaft, 11... Roller support member, 12... Rotation shaft, 13... Transmission gear group, 16... Separation slope, 17... Intermediate roller, 18... First driven roller, 19... Second driven roller, 20... Third driven roller, 21... Fourth driven roller, 24... Conveying drive roller, 25... Conveying driven roller, 28... Support member, 30... Print head, 31... Carriage, 34... Discharge drive roller, 35... Discharge driven roller, 45... Camshaft, 46... Cam follower part, 47... Cam part, 50... Lower tray, 51... Lower tray storage part, 52... Lower tray edge guide, 60... Upper tray, 60a... Tray tip part, 60b... Upper surface of tray end part, 60c... Tray slope, 60d... Tray recess, 61... Upper tray storage part, 62... Upper tray edge guide, 71... Communication unit, 73... Tray drive mechanism, 75... Feeding mechanism, 77... Conveying mechanism, 79... Print head drive mechanism, 81... Upper tray detection part, 83... Paper detection part, 100... Control unit, 101... Feeding control part, 103... Printing control part, 105... Operation detection part, 110... Data memory, 112... Buffer memory, P... Paper, P1... First paper, P2... Second paper, RP1... First swing position, RP2... Second swing position, RP3... Third swing position.

Claims

1. a paper feed means having a paper feed roller that comes into contact with a recording medium and a rotation drive shaft that supports the paper feed roller; a first paper feed cassette having a first storage section capable of storing the recording medium; a second paper feed cassette arranged above the first paper feed cassette so as to be movable toward and away from the paper feed roller, the second paper feed cassette having a second storage section capable of storing the recording medium; A recording unit that prints on the recording medium; a detection unit for detecting the second paper feed cassette; is provided, the feed roller moves up and down to any one of a first feed position where the recording medium is fed from the first feed cassette, a second feed position where the recording medium is fed from the second feed cassette, and a stop position where the feed roller does not come into contact with the recording medium, based on a detection result of the detection unit. A method for controlling a recording device.

2. The paper feed roller is After it is detected that there is no paper feed job, the paper feeder moves from the first paper feed position or the second paper feed position to the stop position; Stopping at the stop position. A method for controlling the recording apparatus according to claim 1.

3. The paper feed roller is After the sheet feeding operation from the first sheet feeding cassette is completed, the sheet feeding device moves from the first sheet feeding position to the stop position, Stopping at the stop position. A method for controlling the recording apparatus according to claim 1.

4. The paper feed roller is After the sheet feeding operation from the second sheet feeding cassette is completed, the sheet feeding device moves from the second sheet feeding position to the stop position, Stopping at the stop position. A method for controlling the recording apparatus according to claim 3.

5. a driving means for moving the second paper feed cassette along a slide shaft; the paper feed roller moves up and down to the first paper feed position, the second paper feed position, and a second stop position different from the stop position, and stops at the second stop position; A method for controlling the recording apparatus according to claim 1.

6. a paper feed means having a paper feed roller that comes into contact with a recording medium and a rotation drive shaft that supports the paper feed roller; a first paper feed cassette having a first storage section capable of storing the recording medium; a second paper feed cassette arranged above the first paper feed cassette so as to be movable toward and away from the paper feed roller, the second paper feed cassette having a second storage section capable of storing the recording medium; A recording unit that prints on the recording medium; A control unit for controlling the paper feeding means; a detection unit for detecting the second paper feed cassette; Equipped with The control unit is moving the paper feed roller up and down to any one of a first paper feed position where the recording medium is fed from the first paper feed cassette, a second paper feed position where the recording medium is fed from the second paper feed cassette, and a stop position where the paper feed roller does not come into contact with the recording medium based on a detection result of the detection unit; Recording device.

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