JP2007090761A - Image recorder - Google Patents

Image recorder Download PDF

Info

Publication number
JP2007090761A
JP2007090761A JP2005285287A JP2005285287A JP2007090761A JP 2007090761 A JP2007090761 A JP 2007090761A JP 2005285287 A JP2005285287 A JP 2005285287A JP 2005285287 A JP2005285287 A JP 2005285287A JP 2007090761 A JP2007090761 A JP 2007090761A
Authority
JP
Japan
Prior art keywords
image recording
paper
switching
gear
carriage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005285287A
Other languages
Japanese (ja)
Inventor
Masatoshi Ido
Yuji Koga
正俊 井▲土▼
雄二 古閑
Original Assignee
Brother Ind Ltd
ブラザー工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brother Ind Ltd, ブラザー工業株式会社 filed Critical Brother Ind Ltd
Priority to JP2005285287A priority Critical patent/JP2007090761A/en
Priority claimed from DE602006018837T external-priority patent/DE602006018837D1/en
Publication of JP2007090761A publication Critical patent/JP2007090761A/en
Application status is Pending legal-status Critical

Links

Images

Abstract

The position of a switching gear that meshes with each driving force transmission gear in a plurality of operation modes is maintained even when a carriage is separated.
A power transmission switching unit 100 includes a plurality of driving force transmission units (intermittent paper feed transmission gear 113, continuous paper feed transmission gear 114, lower stage paper feed transmission gear 121, and maintenance) that transmit power to a plurality of operating parts. A transmission gear 115), a switching gear 102 that selectively transmits power from the driving gear 101 to the driving force transmitting portion in accordance with the movement position of the carriage 13 along the main scanning direction, and an adjacent to the switching gear 102. And a position holding means for holding the movement position of the lever portion 104a along the main scanning direction (first, second, and third set portions 111, 112, 108), and the position of the switching gear 102 is maintained even when the carriage 13 is separated from the switching gear 102.
[Selection] Figure 16

Description

  The present invention relates to an image recording apparatus such as a printer, a copying machine, and a facsimile machine having a plurality of paper feed cassettes, and more specifically, a recording medium corresponding to each paper feed cassette by changing a movement position of a carriage. The present invention relates to a configuration for switching the feeding operation.

  2. Description of the Related Art Conventionally, image recording apparatuses such as printers, copiers, and facsimile machines that are configured to accommodate recording media of a plurality of sizes are known. In this image recording apparatus, a recording medium of one size is selected from a plurality of types of recording media, and image recording is performed on the recording medium. Therefore, a large number of recording media for each size are deposited. A plurality of paper feed cassettes are prepared. The plurality of paper feed cassettes are stacked below the moving portion of the carriage and arranged in a plurality of stages, and are stacked on the selected paper feed cassette in accordance with a command for specifying the size of the recording medium and an image command. The uppermost recording medium is fed by the paper feed roller. Then, the fed recording medium is conveyed from one end of the sheet feeding cassette to a recording unit below the moving unit of the carriage via a U-turn conveyance path.

  In addition, as disclosed in Patent Documents 1 and 2, there is also known an image recording apparatus provided with an ink jet recording head as an image recording unit for recording an image of a dot pattern on a recording medium such as conveyed paper. It has been. Since this ink jet recording head is susceptible to ink ejection defects due to its structure, in order to recover ink ejection defects in the ink jet image recording apparatus, a maintenance unit is provided outside the image recording area on the recording medium. Is provided. The maintenance work is executed by moving and stopping the carriage in the maintenance section.

  In this case, in Patent Document 1, in order to switch between transmission of the driving force of the paper feed roller (platen) for carrying the recording medium and power transmission to the maintenance unit, the maintenance system gear and the paper feed system gear are switched. When the kick member is kicked and moved by a recording head (carriage) that moves in the main scanning direction orthogonal to the recording medium conveyance direction (sub-scanning direction) in order to switch the engagement of the idle gear, the idle gear and the platen gear are engaged with each other. The technology to make is disclosed.

  On the other hand, in Patent Document 2, a supply gear for supplying a sheet from a paper feeding unit on which a recording medium is deposited to an image recording unit, a conveyance / discharge gear for conveying and discharging the sheet to and from the image recording unit, and a maintenance purpose A gear and one drive motor are provided. The switching slider is moved by the force generated by the movement of the carriage so that power is transmitted alternatively from one drive motor to each gear. The switching slider is provided with one switching gear driven by one driving motor. Since the switching gear faces the position where the switching slider moves along the main scanning direction, the switching gear is configured to selectively mesh with any of the supply gear, the conveyance / discharge gear, and the maintenance gear. ing.

  That is, in Patent Document 1, when the carriage is away from the purge position, the idle gear moves in a direction to mesh with the platen gear by the biasing force of the biasing spring. When the carriage is at the purge position, the idle gear is pushed in the direction of meshing with the purge gear against the biasing force of the biasing spring.

In Patent Document 2, the switching slider is urged by a spring. At this time, in the first position where the carriage moves away from the switching slider and is positioned in the image recording area (at the time of paper feeding / conveying operation), the spring Due to the force, the switching slider is moved in a direction in which the switching gear, the paper feeding gear, and the conveying gear mesh. When the paper is discharged (the last page is discharged) (second position), the carriage is positioned between the image recording area and the maintenance position, and the switching slider moves against the spring force. Engage only the switching gear and the transport gear. During the maintenance work (third position), the carriage is moved to the maintenance position, the switching slider moves against the spring force, and the switching gear and the maintenance gear are engaged with each other.
JP-A-8-174958 JP 2003-89244 A

  However, in the configurations of Patent Documents 1 and 2, the idle gear or the switching slider is biased only in one direction by the biasing spring, and the idle gear and the switching slider return to a predetermined original position when the carriage is separated. In other words, since the position of the carriage determines the position of the idle gear and the switching slider, it is necessary to move the carriage each time the paper feeding, conveyance, and image recording operations are performed. There is a problem that it takes time for carriage movement and extra time for gear connection (meshing), and continuous image recording cannot be performed efficiently and quickly.

  Further, in the configurations of the above-mentioned Patent Documents 1 and 2, it is provided with a plurality of stages of paper feed cassettes, and in effect, switching of power transmission for the paper feed operation and maintenance work of the recording medium from each paper feed cassette is executed. It was impossible.

  The present invention has been made to solve the above-described problems, and it is possible to reliably switch the power transmission between the feeding operation of the recording medium from the paper feeding cassette and the maintenance work only by moving the carriage. It is another object of the present invention to provide an image recording apparatus that can be applied quickly and can be applied even when paper feed cassettes are arranged in a plurality of stages.

  In order to achieve the above object, an image recording apparatus according to a first aspect of the present invention includes a carriage mounted with a recording head capable of recording an image on a recording medium and capable of reciprocating in the main scanning direction. In the image recording apparatus provided at one end of the movement with power transmission switching means for switching power transmission for a plurality of operation modes for a plurality of operation parts, the power transmission switching means transmits power for each of the plurality of operation parts. A plurality of driving force transmission units, a switching unit that selectively transmits power from one power output unit to the driving force transmission unit according to a movement position of the carriage along the main scanning direction, and the switching Position holding means for holding the moving position of the part along the main scanning direction.

  According to a second aspect of the present invention, in the image recording apparatus according to the first aspect, a paper feed cassette capable of depositing and storing a recording medium below a recording portion by the recording head, and maintenance of the recording head. A maintenance section for carrying out the operation, and the operating portion includes means for feeding the recording medium from the paper feed cassette to the recording section and conveying the recording medium while recording an image, and operating means for the maintenance section. It is characterized by being.

  According to a third aspect of the present invention, in the image recording apparatus according to the first or second aspect, the paper feed cassettes are arranged in a plurality of upper and lower stages, and the plurality of operation parts are deposited for each of the paper feed cassettes. It is characterized by being a feeding means corresponding to each stage for separating one recording medium from the recorded medium and feeding it to the recording unit.

  According to a fourth aspect of the present invention, in the image recording apparatus according to any one of the first to third aspects, the plurality of driving force transmission units are arranged in a line along the main scanning direction. A gear group, and the switching portion includes a switching gear that is elastically urged in both directions along the main scanning direction so as to be reciprocally movable and meshes with the input spur gear group, The holding means includes a switching operation body for moving the switching gear in the main scanning direction in accordance with the movement of the carriage, and a plurality of holding portions for holding positions of the switching operation body in the main scanning direction. It is a thing.

  According to a fifth aspect of the present invention, in the image recording apparatus according to the fourth aspect, the switching actuating member is engaged with and disengaged from the engagement portion of the carriage and is engaged with and disengaged from the holding portions. It is equipped with.

  According to a sixth aspect of the present invention, in the image recording apparatus according to the fifth aspect, the lever portion is slidably disposed with respect to the holding frame on which the holding portion is formed.

  According to a seventh aspect of the present invention, in the image recording apparatus according to the sixth aspect, an annular passage is formed in the holding frame so as to be slidable in a state where the lever portion passes therethrough, and the annular passage. The holding part is formed in a compartment along the line.

  According to an eighth aspect of the present invention, in the image recording apparatus according to the seventh aspect, the lever portions are sequentially engaged only when the carriage moves in the main scanning direction and in a direction away from the image recording area. A plurality of holding portions to be removed are formed on one side of the annular passage, and when the lever portion moves along the other side of the annular passage, the lever portion is a holding portion closest to the image recording area. It is provided with a regulating piece that guides only to be locked.

  According to a ninth aspect of the present invention, in the image recording apparatus according to any one of the fourth to ninth aspects, the switching operation body and the switching gear are pivotally supported so as to be slidable and rotatable on a single spindle. It is what.

  According to a tenth aspect of the present invention, in the image recording apparatus according to the ninth aspect, the carriage is provided with a plurality of engaging portions on which the lever portion can be engaged and disengaged.

  According to an eleventh aspect of the present invention, in the image recording apparatus according to the ninth or tenth aspect of the present invention, the posture forcing body maintains a predetermined posture on the opposite side of the switching gear with the switching operation body interposed therebetween. It is arranged on a shaft, and is configured to turn and urge the switching operation body in one direction around the axis of the support shaft so that the lever portion is locked to each holding portion by the posture forcing member. Is.

  According to a twelfth aspect of the present invention, in the image recording apparatus according to any one of the second to eleventh aspects, the power transmission switching unit causes the carriage to stand by at one end in the moving direction to perform a maintenance operation. A power transmission unit for the maintenance unit is disposed at a position in the main scanning direction that is farthest from the image recording area, while a power transmission unit to a feeding unit for the upper sheet cassette is the main scanning direction. A power transmission unit that is disposed in the vicinity of the recording medium along the direction and outside the image recording area on the recording medium, and is arranged between the two power transmission units. It is what.

  According to a thirteenth aspect of the present invention, in the image recording apparatus according to any one of the second to twelfth aspects, the power transmission unit to the feeding unit for the arbitrary one paper feeding cassette includes an intermittent paper feeding transmission gear. It is separated into a continuous paper feed transmission gear.

  According to a fourteenth aspect of the present invention, in the image recording apparatus according to any one of the eleventh to thirteenth aspects, the switching operation body, the switching gear, and the posture forcing body can be brought into contact with and separated from each other at adjacent positions. It has been separated.

  According to a fifteenth aspect of the present invention, in the image recording apparatus according to any one of the eleventh to fourteenth aspects, the posture forcing body includes a maintenance piece for maintaining its own posture. .

  According to a sixteenth aspect of the present invention, in the image recording apparatus according to any one of the sixth to fifteenth aspects, the holding frame is fixed to a guide plate that guides and supports the carriage along a main scanning direction. Is.

  According to the first aspect of the present invention, a recording head capable of recording an image on a recording medium is mounted, and a carriage that can reciprocate in the main scanning direction is provided. In the image recording apparatus provided with the power transmission switching means for switching the power transmission for a plurality of operation modes, the switching unit is urged from both directions along the main scanning direction, so the carriage is moved in the main scanning direction. The switching unit moves and selectively meshes with one of the plurality of driving force transmission units. In the present invention, since there is a position holding means for each selected engagement portion of the switching portion and the driving force transmission portion, even if the carriage is separated from the switching portion into the image recording area, the engagement, that is, Power transmission state can be maintained. As a result, in continuous feeding operation and intermittent feeding operation, the time for the operation such as moving the carriage is reduced in order to select the driving force transmission state, and the image recording operation can be made faster and more efficient. There is an effect that can be.

  According to a second aspect of the present invention, the apparatus comprises: a paper feed cassette capable of storing a recording medium deposited and stored below a recording unit by the recording head; and a maintenance unit for maintaining the recording head. The parts are means for feeding the recording medium from the paper feed cassette to the recording unit and conveying the recording medium while recording an image, and operating means for the maintenance unit. For the operation means of the maintenance unit, it is only necessary to stop the carriage at the maintenance unit, and it is necessary to move the carriage into the image recording area in the operation mode for feeding and transporting the recording medium. Therefore, there is an effect that the image recording operation can be speeded up and made efficient.

  According to the third aspect of the present invention, the present invention can be applied to various types of image recording apparatuses, such as a case where a plurality of paper feed cassettes are arranged and a case where a maintenance unit is arranged.

  According to a fourth aspect of the present invention, the plurality of driving force transmission portions are input spur gear groups arranged in a line along the main scanning direction, and the switching portion is along the main scanning direction. Are provided so as to be able to reciprocate by being elastically urged in both directions, and provided with a switching gear that meshes with the input spur gear group, so that when the switching gear is moved along the main scanning direction, each drive Power can be transmitted by selectively meshing with the input spur gear in the force transmission portion. The position holding means has a switching actuating body for moving the switching gear in the main scanning direction in accordance with the movement of the carriage, and a plurality of holdings for holding positions of the switching actuating body in the main scanning direction. Therefore, the switching operation body moved in accordance with the movement of the carriage can be held by any one of the plurality of holding portions.

  According to the invention of claim 5, since the switching operation body is provided with a lever portion that engages / disengages with respect to the engaging portion of the carriage and engages / disengages with each of the holding portions, What is necessary is just to associate a part and each holding | maintenance part indirectly.

  According to the invention of claim 6, since the lever portion is slidably arranged with respect to the holding frame body on which the holding portion is formed, the lever is fixed with the holding frame body fixed. When the part is moved by the carriage, the lever part slides along the holding frame and the lever part can be engaged with and disengaged from the holding part.

  According to the seventh aspect of the present invention, the holding frame body is formed with an annular passage that is slidable in a state in which the lever portion penetrates, and the holding portion is formed along the annular passage. Therefore, when the lever portion is moved by the carriage, the lever portion does not come out of the annular passage in the holding frame body, and even if the carriage is separated from the lever portion, the lever The portion does not come off the annular passage, and the lever portion can be sequentially engaged with and disengaged from each holding portion defined along the annular passage.

  According to the invention described in claim 8, the lever portion is only when the carriage moves in the main scanning direction and away from the image recording area (direction in which the carriage approaches the power transmission switching means). Is formed on one side of the annular passage, and when the lever portion moves along the other side of the annular passage, the lever portion is located at a position closest to the image recording area. Since it is provided with a restricting piece that is guided only to the holding portion, the lever portion can be locked to the holding portion only when the carriage moves around the annular passage in one direction. There is an effect that the control of selecting one of these can be made clear and simple.

  According to the ninth aspect of the present invention, since the switching operation body and the switching gear are pivotally supported on one supporting shaft so as to be slidable and rotatable, the switching gear is moved by the carriage. The switching operation body can also slide on one spindle and can rotate.

  According to the tenth aspect of the present invention, when the switching operation body rotates about the axis, the lever portion can be selectively locked to any one of a plurality of engagement portions in the carriage.

  According to an eleventh aspect of the present invention, a posture forcing body is disposed on the support shaft while maintaining a predetermined posture on the opposite side of the switching gear across the switching operation body, and the posture forcing body causes the Since the switching operation body is configured to be urged to rotate in one direction around the axis of the support shaft so that the lever portion is locked to each holding portion, the carriage travels along the main scanning direction. Only when moving (one side of the annular passage) in one direction, the lever portion can be locked to the holding portion.

  According to the twelfth aspect of the present invention, the uppermost sheet cassette among the plural stages of sheet cassettes is disposed at the closest position outside the image recording area in the carriage movement direction, and the lower sheet cassette than the upper sheet. The power transmission unit to the feeding means is sequentially arranged away from the image recording area, and the maintenance unit is arranged at the position farthest from the image recording area. Therefore, when the carriage is moved along the main scanning direction, Since the switching operation in which power is transmitted from the upper stage to the lower stage paper cassette and the maintenance unit can be executed, when the design change is made to the optional image recording apparatus in which the number of stages of the paper feeding cassette is increased, the structure of power transmission switching and There is an effect that it is possible to reduce time and effort for changing the control and to reduce the manufacturing cost.

  According to the invention of claim 13, the power transmission part to the feeding means for the arbitrary one paper feeding cassette is separated into the intermittent paper feeding transmission gear and the continuous paper feeding transmission gear. By switching the drive with one paper feed cassette, it is possible to easily select between intermittent paper feed with accuracy (image quality) priority and continuous paper feed with speed priority.

  According to the fourteenth aspect of the present invention, the switching operation body, the switching gear, and the posture forcing body are separated so as to be able to come into contact with each other at adjacent locations. The three members, the gear and the posture forcing body, can execute independent operations.

  According to the fifteenth aspect of the present invention, since the posture forcing body includes a maintenance piece for maintaining its own posture, the switching operating body rotates around the axis. However, the posture of the posture forced body can be kept constant.

  According to the sixteenth aspect of the present invention, the holding frame is fixed to a guide plate that guides and supports the carriage in the main scanning direction. A holding part can be formed and there exists an effect that a structure can be made compact.

  An embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view seen from the front of a multi-function device (multifunction device) as an image recording device applied to the present embodiment, FIG. 2 is a side sectional view of a recording unit and upper and lower two-stage sheet cassettes, FIG. Fig. 4 is a plan view of the recording unit without the image reading unit, Fig. 4 is a side sectional view of the main part of the recording unit, Fig. 5 is a perspective view of the upper sheet cassette and the first feeding unit, and Fig. 6 is a main part of the recording unit. FIG. 7 is a perspective view of the recording unit in a state where the downstream guide plate is removed, and FIG. 8 is a perspective view of the second transmission unit and the power transmission unit for the power transmission switching unit and the lower sheet cassette. 9 is a view taken along the line IX-IX in FIG. 6, FIGS. 10A to 10C are explanatory views showing the position of the power transmission switching means during the intermittent sheet feeding operation with respect to the upper sheet cassette, FIG. ) To (d) are explanatory diagrams of the operation of the switching operation body and the posture forcing body, and FIGS. 12 (a) to (c) are the same in the continuous feeding operation. FIGS. 13A to 13C are explanatory diagrams showing the positions of the power transmission switching means, and FIGS. 14A to 14C are diagrams illustrating the positions of the power transmission switching means during the paper feeding operation with respect to the lower paper feeding cassette. c) is an explanatory view showing the position of the power transmission switching means at the time of the maintenance operation, FIG. 15 is a schematic configuration diagram of the power transmission switching means, and FIGS. 16 (a) to 16 (b) are explanatory diagrams of switching action at each operation, 17A to 17B are explanatory diagrams of the operation of the power transmission unit in the intermittent paper feeding mode, FIGS. 18A to 18C are explanatory diagrams of the operation of the power transmission unit in the continuous paper feeding mode, and FIG. (A)-(b) is an explanatory view of the operation of the power transmission unit at the time of paper processing, FIG. 20 is a functional block diagram of the control device, and FIGS.

  An image recording apparatus 1 according to the present embodiment is an application of the present invention to a multi-function device (MFD) having a printer function, a copy function, a scanner function, and a facsimile function, as shown in FIG. The upper first paper feed cassette 5A (see FIGS. 2 and 5) that can be inserted from the opening 2c on the front side of the first lower case 2a of the synthetic resin housing 2 in the apparatus is disposed, and the first lower case 2a Similarly, a lower second paper feed cassette 5B that can be inserted from the front opening 2d is also disposed in the second (lowermost) lower case 21 connected to the lower end of the second lower case 21. However, in FIG. 1, the second paper feed cassette 5 </ b> B is housed in the housing 2, but the first paper feed cassette 5 </ b> A is removed from the housing 2. Hereinafter, in parts such as the housing 2, the first lower case 2a, the second lower case 2b, and the paper feed cassettes 5A and 5B, the side close to the openings 2c and 2d is referred to as the front side, the front portion, or the front end, and the opposite side is referred to as the front side. It is called the rear side, rear part or rear end.

  The upper case 3 on the upper side of the housing 2 has an image reading device (not shown) provided with an automatic document feeder 32 for reading a document in a copy function or a facsimile function, and various operation buttons and liquid crystal in front thereof. An operation panel unit 30 including a display unit 31 and the like is provided (see FIGS. 1 and 2). A rear end of the document cover body 34 covering the upper surface of a document placement glass plate (not shown) in the image reading apparatus is attached to the rear end of the image reading apparatus so as to be rotatable up and down around a hinge. Accordingly, the document cover body 34 is opened upward to place the document on the document placement glass plate, and the lower side thereof is perpendicular to the paper surface of FIG. 2 (main scanning direction, Y-axis direction in FIG. 1). Image reading is performed by a contact image sensor (CIS: Contact Image Sensor) 34 that is provided on the extending spindle so as to be reciprocally movable.

  A recording unit 10, a paper discharge unit (a space above the paper feed cassette 5 </ b> A in the opening 2 c), a storage unit 27, and the like are disposed below the planar projection area of the operation panel 30 and the image reading device. ing. The ink cartridge 26 for supplying ink to the recording head 12 for color recording with respect to the storage portion 27 stores ink for each of a plurality of colors. In the embodiment, four colors of black, cyan, magenta, and yellow are stored. However, inks of more colors may be stored. Ink is supplied from each ink cartridge 26 to the recording head 12 by connecting a flexible ink tube 28. The ink cartridge 26 is configured to be detachable from above with respect to the housing portion 27 (see FIG. 3) with the upper case 3 being largely opened upward.

  2 to 5, the recording unit 10 includes a carriage 13 having a recording head 12, a plate-like platen 11 made of synthetic resin, a CR (carriage) motor 24 for reciprocating the carriage 13, and the CR. The timing belt 25 connected to the motor 24 and an engine frame 39 made of a metal plate for supporting them are mainly configured. The engine frame 39 is disposed on the rear side of the main body case 2 and above the paper feed cassette 5. The engine frame 39 as a support frame is made of metal, and as shown in FIGS. 2, 4, 5 to 8, the main body case 2 has a left and right direction (main scanning direction) on the upper side of the box-shaped main body 39 a. , And a pair of guide plates 40 and 41 on the upstream side and the downstream side that slidably support the carriage 13. An area between the lower surface of the recording head 12 and the platen 11 is defined as an image recording unit in the claims of the present application.

  Timing arranged to extend in the main scanning direction (Y-axis direction) on the upper surface of the guide plate 41 arranged on the downstream side in the paper feeding direction (see the arrow A direction in FIGS. 2, 5, and 6). A belt 25 is wound around pulleys 25a and 25b. A carriage 13 on which the recording head 12 is mounted is connected to a part of the timing belt 25.

  A linear encoder (encoder strip) 37 is disposed on the upper surface of the downstream guide plate 41 so as to extend along the longitudinal direction (main scanning direction), and the position of the carriage 13 in the Y-axis direction (main scanning direction). And its moving direction. The strip-shaped linear encoder (encoder strip) 37 is arranged such that the inspection surface (the surface on which slits are arranged at regular intervals in the Y-axis direction) is along the vertical direction.

  A first feeding unit 6 as a first feeding means having a sheet feeding roller 7 above the first sheet feeding cassette 5A, and a first U-turn conveying path having an upward U-shape at the rear end in the main body case 2 9 is provided with a transport path for transporting the paper P toward the recording unit in a substantially horizontal direction.

  In addition, an inclined separation plate 15 for paper separation is disposed on the rear side of the upper first paper feed cassette 5A. The inclined separation plate 15 is formed in a convex curve shape in a plan view so as to protrude at the center side in the width direction (Y-axis direction) of the paper P and to recede toward the left and right end portions in the width direction of the paper P. In addition, a serrated elastic separation pad (not shown) for abutting the leading edge of the paper P to promote separation is provided at the center in the width direction of the paper P.

  An upper end portion of the paper feeding arm 6a in the first feeding unit 6 is rotatably mounted on the main body 39a, and a paper feeding roller provided at the lower end (free end portion) of the paper feeding arm 6a. 7 and the elastic separation pad in the inclined separation plate 15, the paper P as the recording medium deposited on the first paper feed cassette 5 </ b> A is separated and fed one by one, and the first U-turn conveyance path 9. Sent to. The paper feed arm 6a is constantly urged in the downward rotation direction by a torsion spring 38 (see FIG. 5) as urging means. As shown in FIG. 17, a gear transmission mechanism 50 including a plurality of meshing gears for transmitting a rotational force from the drive shaft 14 to the sheet feeding roller 7 is disposed on the sheet feeding arm 6 a of the first feeding unit 6. ing.

  A lower second paper feed cassette 5B is disposed below the first paper feed cassette 5A as shown in FIG. On the rear side of the second paper feed cassette 5B, an inclined separation plate 16 with an elastic separation pad for paper separation having the same configuration as that in the first paper feed cassette 5A is disposed. An upper end portion of the paper feed arm 17a in the second feed unit 17 as the second feed means is attached to the second lower case 2b so as to be rotatable in the vertical direction, and is fed from the drive shaft 18 to the paper feed arm 17a. A gear transmission mechanism 51 composed of a plurality of meshing gears for transmitting a rotational force to the paper feed roller 19 at the tip of this is disposed.

  A second U-turn conveyance path 22 (shown in FIG. 2) provided integrally with the first U-turn conveyance path 9 is detachably mounted across the rear ends of the first lower case 2a and the second lower case 2b. A possible mounting notch (not shown) is formed. Accordingly, the paper P accumulated in the second paper feed cassette 5B is separated and fed one by one by the cooperation of the paper feed roller 19 and the elastic separation pad in the inclined separation plate 16, and the second U-turn conveyance path 22 is supplied. To the recording unit (between the lower surface of the paper feed cassette 2 and the platen 11.

  Further, of the registration roller (conveyance roller) pair 20 that is disposed on the upstream side in the conveyance direction across the platen 11 and sends the paper P to the image recording unit that is the lower surface of the recording head 12, both ends of the drive roller 20a The paper discharge roller pair 21 is disposed downstream of the platen 11 in the transport direction and transports the recorded paper P toward the paper discharge unit (see the arrow B direction in FIGS. 2 and 6). Both ends of the driven paper discharge roller 21a are rotatably supported by shaft support portions provided on the pair of side plates 39b and 39c in the engine frame 39. The conveyed paper P is nipped between the drive roller 20a located on the upper surface side and the driven roller 20b located on the lower surface side. Further, the driven paper discharge roller 21a in the paper discharge roller pair 21 comes into contact with the lower surface of the paper P to be discharged, and the spur 21b is nipped so as to contact the upper surface of the paper P.

  On the outside of the width of the paper P to be conveyed (short side of the paper P), one end side (in the embodiment, the main body 39a of the engine frame 39 is placed on the left side plate 39b when viewed from the paper P feeding direction. An ink receiving portion 35 is disposed in the vicinity (a portion near), and a maintenance portion 36 including a maintenance unit is disposed on the other end (a portion close to the right side plate 39c) (see FIG. 3). As a result, the recording head 12 periodically discharges ink to prevent nozzle clogging during the recording operation at the flushing position provided in the ink receiving portion 35, and receives ink at the ink receiving portion 35.

  The drive roller 20a, the discharge roller 21a, and the maintenance unit 36 are supplied with power from one common drive motor (LF motor) 42 disposed in the vicinity of the side plate 39b opposite to the side where the maintenance unit 36 is disposed. It is transmitted via a predetermined gear transmission mechanism 43 (see FIGS. 6, 7 and 9). As shown in FIGS. 7 and 9, the gear transmission mechanism 43 includes a pinion 43a attached to a drive shaft of a LF motor 42 that can rotate forward and backward (for paper conveyance), a transmission gear 43b that meshes with the pinion 43a, The intermediate gear 43c includes a transmission gear 43d that meshes with the intermediate gear 43c, and the transmission gear 43b is attached to one side (left end portion) of the drive roller 20a in the registration roller pair 20. The other transmission gear 43 d is attached to one end (left end portion) of the paper discharge roller 21 a in the paper discharge roller pair 21. When the sheet P is fed closer to the image recording unit via the first U-turn conveyance path 9 and the second U-turn conveyance path 22 than the position where the registration roller pair 20 is disposed, the sheet P is fed. A paper detection body 116 for detecting the leading end position and the terminal end position of P is provided (see FIG. 4), and a registration sensor 117 as a paper sensor is provided in association therewith.

  In the embodiment, the rotational force from the LF motor 42, which is a DC motor, is transmitted from the other end of the drive roller 20a in the registration roller pair 20 via the power transmission switching means 100 disposed on the maintenance unit 36 described later. Then, power is selectively transmitted to the sheet feed roller 7 of the feeding unit 6 and the maintenance mechanism (not shown in detail) of the maintenance unit 36.

  As described above, since the driving roller 20a and the paper discharge roller 21a are positioned above and below the paper conveyance path, the driving roller 20a and the paper discharge roller 21a are driven by the rotational drive of the LF motor 42 in a predetermined direction. Will rotate in opposite directions.

  Further, a part of the gear transmission mechanism 43 is provided with a rotary encoder 44 for detecting the transport amount of the paper P by the transport roller pair 20a. Both the CR motor 24 and the LF motor 42 are configured to be able to rotate forward and reverse.

  Note that a spur 51 is arranged at a position downstream of the image recording area by the nozzle surface of the recording head 12 and between the discharge roller pair 21 and close to the upper surface of the platen 11 (see FIG. 4). As a result, the image-recorded paper P is lifted and does not slide on the nozzle surface, so that the image quality is not deteriorated due to ink stains.

  Next, referring to FIGS. 8 and 10 to 16, the respective drives for the first feeding unit 6, the second feeding unit 17, and the maintenance unit 36 (which correspond to the operation parts in the claims). The configuration of the force transmission unit and power transmission switching means 100 will be described. The power transmission switching unit 100 includes a maintenance mode in which power is transmitted only to the maintenance unit 36, an intermittent sheet feeding mode and a continuous sheet feeding mode of the driving mode in the first feeding unit 6, and lower sheet feeding by the second feeding unit 17. The mode is switched to a plurality of operation modes. In the present embodiment, the “mode” refers to a continuous operating state unless switched by the power transmission switching means 100.

  As described above, the rotational force from the LF motor 42 capable of forward and reverse rotation is transmitted to the drive roller 20a in the registration roller pair 20 via the reduction gear 43b. At the right end portion (maintenance portion 36) of the drive roller 20a, one long drive gear 101 (corresponding to the power output portion in the claims) in the power transmission switching means 100 is provided so as to rotate integrally. . One switching gear 102 (corresponding to the switching portion in the claims) that always meshes with the drive gear 101 is configured to be slidable and rotatable with respect to the support shaft 103 arranged in parallel with the axis of the drive roller 20a. ing. Further, a first block 104 (corresponding to a switching operation body in the claims) having a lever portion 104a extending upward is fitted on the support shaft 103 so as to be slidable and rotatable. A second block 105 adjacent to the first block 104 (corresponding to a posture forcing body in the claims) is slidably fitted to the support shaft 103. The first block 104 can be separated from one side of the switching gear 102. Also, the first block 104 and the second block 105 can be separated.

  The first biasing spring 106a fitted on the support shaft 103 presses the second block 105 in the direction of arrow C in FIGS. 11B, 15 and 16, and the second biasing spring 106b is a switching gear. It arrange | positions so that 102 may be pressed to the arrow E direction of FIG.11 (b), FIG.15 and FIG.16. . In this case, the biasing force of the first biasing spring 106a is set to be larger than the force of the second biasing spring 106b.

  An end surface cam portion (not shown) that is inclined with respect to the axis of the support shaft 103 is formed at a facing portion between the first block 104 (switching operation body) and the second block 105 (posture forcing body). When the second block 105 pushes the first block 104 in the direction of arrow C, the lever portion 104a rotates in the direction of arrow D in FIG.

  In the embodiment, as shown in FIGS. 11A to 11D, a plate-shaped contact piece 104b is formed across the base portion 104c of the first block 104 and the lever portion 104a extending radially outward from the base portion 104c. Is provided. The second block 105 is provided with a notch 105b in which the abutting piece 104b can be loosely fitted at a position facing the abutting piece 104b in the base 105a, and one side of the notch 105b is formed on the base 105a. The forcible contact surface 105c is inclined from the radius center side to the radius outer side. The second block 105 is provided with a pair of corner portions 105d extending radially outward from the base portion 105a. The pair of corner portions 105 d are provided so as to be able to contact the lower surface of the downstream guide plate 41, and are configured so that the second block 105 does not rotate around the support shaft 103. The base portion 104c of the first block 104 is formed so as to be fitted into the inner diameter portion of the base portion 105a of the second block 105.

  From the state in which the first block 104 and the second block 105 approach and the contact piece 104b is in contact with the radially outward portion of the forced contact surface 105c of the notch 105b (see FIG. 11C). The distance between the first block 104 and the second block 105 is increased, and the contact piece 104b is in contact with a portion near the radius center of the forced contact surface 105c of the notch 105b (FIG. 11 (d). The posture of the first block 104 is forcibly changed in the direction of the arrow D (see FIG. 11B) until (see)). Accordingly, the lever portion 104a is also rotated in the arrow D direction.

  As shown in FIGS. 10 (a) to 10 (c) and 16 (a), at the position above the first block 104, a guide groove in which the tip of the lever portion 104a can slide up and down is slid. A guide block 107 made of synthetic resin such as a plate having 109 (corresponding to a holding frame in the claims) is fixed to the guide plate 41. FIG. 16A schematically shows the guide block 107. As shown in FIG. 16B in plan view, the guide groove 109 includes a linear groove portion 109a that is long in the directions of arrows C and E, and a clockwise annular groove portion 109b that communicates with the left end portion of the linear groove portion 109a. . In the embodiment, the restricting piece 110 extending downward from above the guide block 107 is made to face the central portion of the annular groove 109b (see FIGS. 10A to 10C). The restriction piece 110 is along the straight groove 109a. A stepped first set portion 111, a second set portion 112, and a sloped convex portion 108a are formed adjacent to the second set portion 112 on one side of the annular groove 109b. A three-set unit 108 is provided. These set portions are holding portions referred to in the claims.

  The lever portion 104a can be received by the first engagement step portion 13a or the second engagement step portion 13b in the carriage 13, and the switching gear 102, according to the movement of the carriage 13 in the arrow C direction or the arrow E direction. The first block 104 and the second block 105 are slid along the support shaft 103 and moved in the direction of arrow C or arrow E.

  Next, the operation mode switching operation of the power transmission switching means 100 according to the movement of the carriage 13 along the main scanning direction (movement in the direction of arrow C or arrow E) will be described.

  As shown in FIG. 16B, when the carriage 13 is greatly moved in the arrow C direction from the maintenance unit 36 and is in the recording area for the paper P, the first biasing spring 106a is pushed in the arrow C direction. The first block 104 and the switching gear 102 move along the support shaft 103 via the two blocks 105. Then, the lever portion 104 a in the first block 104 rotated in the direction of arrow D is locked to the first set portion 111. This position is referred to as position 1 (Po1). At this time, the switching gear 102 meshes with the intermittent paper feeding transmission gear 113 (see FIGS. 10A to 10C).

  Next, when the carriage 13 moves in the direction of arrow E by the maintenance unit 36, the lever unit 104 a is pushed by the first engagement step unit 13 a in the carriage 13. When the lever portion 104a is locked to the second set portion 112 (position 2, Po2), the switching gear 102 meshes with the continuous paper feed transmission gear 114 (see FIGS. 12A to 12C). ).

  When the carriage 13 further moves in the direction of arrow E, the lever portion 104a pushed by the first engagement step portion 13a gets over the inclined convex portion 108a adjacent to the second set portion 112, and reaches the third set position 108. It is locked to. This position is referred to as position 3 (Po3). At this time, the switching gear 102 meshes with the lower-stage sheet feeding transmission gear 121 (see FIGS. 13A to 13C). Then, the rotational force is transmitted from the lower-stage sheet feeding transmission gear 121 to the drive shaft 18 for the second feeding unit 17 via the gear transmission mechanism 122 having a plurality of gears (see FIG. 8). When the driving roller 20a of the registration roller pair 20 and the paper feeding roller 19 in the second feeding unit 17 are continuously rotated in the same direction, the same operation as the continuous paper feeding operation in the first feeding unit 6 described later is performed. The paper P accumulated in the second paper feed cassette 5B is fed to the recording unit 10, recorded / conveyed, and discharged.

  When the carriage 13 further moves in the direction of arrow E from position 3 (Po3), the lever portion 104a pushed by the first engagement step portion 13a follows the connecting inclined surface 109c to the linear groove portion 109a in the annular groove portion 109b. Moving. At an initial position where the lever portion 104a enters the linear groove portion 109a (this position is referred to as position 4 (Po4)), the lever portion 104a is engaged with the second engagement step portion 13b of the carriage 13. At this time, the switching gear 102 meshes with the maintenance transmission gear 115.

  The switching gear 102, the intermittent feeding gear 113, the continuous feeding gear 114, the lower feeding gear 121, and the maintenance transmission gear 115 are spur gears. And the gear teeth of the transmission gears 113, 114, 121, and 115 may be out of phase. Therefore, when the switching gear 102 is moved to an adjacent position, the drive roller 20a and thus the drive gear 11 are slightly adjusted. By rotating in reverse, the phase of the tooth tip of the switching gear 102 is changed so that the gears can mesh with each other. A large-diameter bevel gear 115a is provided on the side surface of the maintenance transmission gear 115 so as to rotate integrally.

  When the carriage 13 further moves in the direction of arrow E from the position 4 (Po4), the side surface of the switching gear 102 comes into contact with the bevel gear 115a and is prevented from moving in the direction of arrow E and is separated from the first block 104. The switching gear 102 is kept in mesh with the maintenance transmission gear 115 (see FIGS. 14A to 14C). The lever portion 104a is pushed by the second engagement step portion 13b in the carriage 13 and is positioned at the end portion (the right end portion in FIG. 16B) of the linear groove portion 109a. This position is defined as position 5 (Po5).

  Contrary to the above, when the carriage 13 moves from the position 5 (Po5) in the direction of arrow C and the lever portion 104a moves from the linear groove portion 109a to the annular groove portion 109b, the lever portion 104a receives the first engagement step portion 13a. Therefore, the lever portion 104a does not enter the connecting inclined surface 109c, and the lever portion 104a slides on the regulating piece 110 and reaches the left end portion along the left inclined surface of the annular groove portion 109b in FIG. The lever portion 104a is engaged with the one set portion 111 so that it can move cyclically.

  The position 5 (Po5) is a home position (origin position), and is a maintenance position that also serves as a standby position. At the maintenance position also serving as the standby position, the cap portion 36a in the maintenance portion 36 covers the nozzle surface of the recording head 12 from below. The LF motor 42 is driven, and a suction pump (not shown) is operated to selectively suck ink from the nozzles, or a recovery process for removing bubbles in a buffer tank (not shown) on the recording head 12. Do. When the carriage 13 moves laterally from the maintenance unit 36 to the image recording area (left direction in FIG. 6), the cap unit 36a is separated from the nozzle surface of the recording head 12 at the position 4 (Po4), and is empty. While performing suction, it cleans by wiping the nozzle surface with a cleaner (wiper blade) 36b. In a state where the image recording apparatus 1 is not powered on, the carriage 13 is stopped at the upper surface position of the maintenance unit 36 (position 5 (Po5)), and the nozzle portion of the recording head 12 in the carriage 13 is the maintenance unit. It is closely attached and covered by a cap portion 36a on the upper surface of 36 (see FIG. 6).

  At position 1 (Po1) where the switching gear 102 meshes with the intermittent paper feed transmission gear 113, as shown in FIGS. 17 (a) and 17 (b), the paper feed arm 6a is connected via two intermediate gears 119a and 119b. Power is transmitted to the drive shaft 14 at the base end, and the paper feed roller 7 is rotated via the gear transmission mechanism 50.

  On the other hand, at the position 1 (Po1) where the switching gear 102 meshes with the continuous paper feed transmission gear 114, as shown in FIGS. 12 (a) to 12 (c) and FIG. 18 (a), one intermediate gear 120 is moved. The power is transmitted to the drive shaft 14 at the base end of the paper feed arm 6 a through the gear transmission mechanism 50, and the paper feed roller 7 is rotated through the gear transmission mechanism 50.

  Next, the control unit (control means) of the image recording apparatus 1 will be described with reference to FIG. This control unit controls the overall operation of the image recording apparatus 1.

  This control unit is configured as a microcomputer centering on the CPU 300, ROM 301, RAM 302, and EEPROM 303, and is connected to an ASIC (Application Specific Integrated Circuit) 306 via a bus 305.

  The ROM 301 stores programs for controlling various operations of the ink jet printer, and the RAM 302 is used as a storage area for temporarily storing various data used when the CPU executes these programs and as a work area. It is done.

  A network control unit (NCU) 317 is connected to the ASIC 306, and a communication signal input from the public line via the NCU 317 is demodulated by the MODEM 318 and then input to the ASIC 306. When the ASIC 306 transmits image data to the outside by facsimile transmission or the like, the image data is modulated into a communication signal by the MODEM 318, and the communication signal is output to the public line via the NCU 317.

  The ASIC 306 generates, for example, a phase excitation signal for energizing the LF motor 42 in accordance with a command from the CPU 300, and supplies these signals to the drive circuit 311 of the LF motor 42 and the drive circuit 312 of the CR motor 24 for driving. A drive signal is supplied to the LF motor 42 and the CR motor 24 via the circuit 311 and the drive circuit 312 and the like, and the forward / reverse rotation and stop of the LF motor 42 and the CR motor 24 are controlled.

  Further, the ASIC 306 includes a scanner device 33 (for example, CIS) for reading a document image and characters, a panel interface 313 having a keyboard 30a of an operation panel 30 and a liquid crystal display (LCD) 30b for transmission / reception operations. A parallel interface 315, a USB interface 316, and the like for transmitting / receiving data to / from an external device such as a personal computer via a parallel cable or a USB cable are connected.

  Further, the leaf switch 118 for detecting the rotational position of the cam (not shown) of the maintenance unit 36 and the paper P are fed to the ASIC 306 through the U-turn conveyance path 9 so as to approach the image recording unit. Sometimes, the rotation amount of the registration sensor 117 and the driving roller 20a provided in association with the paper detection body 116 located on the downstream side of the U-turn conveyance path 9 in order to detect the leading end position and the end position of the paper P is determined. A rotary encoder 44 for detection, a linear encoder 37 for detecting a movement amount and a movement position (current position) of the carriage 13 in the main scanning direction, and the like are connected.

  The drive circuit 314 is for selectively ejecting ink from the recording head 12 to the paper P at a predetermined timing. The drive circuit 314 generates a signal generated and output by the ASIC 306 based on a drive control procedure output from the CPU 300. In response, the recording head 12 is driven and controlled.

  Next, control of paper feeding and image recording by the above-described control means will be described with reference to the flowchart of FIG. More specifically, the control is to switch the paper (cut sheet) paper feeding mode between the first mode and the second mode. In the first mode, when recording images on a plurality of paper sheets, the first paper cassette 5 In this mode, paper is intermittently fed, and priority is given to good accuracy of image recording. On the other hand, the second mode is a mode in which sheets are continuously fed from the first sheet feeding cassette 5 when recording images on a plurality of sheets, and a mode in which a plurality of sheets are fed at a high speed. is there.

  The image recording apparatus 1 is powered on and control starts. Next, when the user selects either the first mode or the second mode by pressing a mode setting button (not shown) on the operation panel 30, the control unit confirms the setting mode (S1). In the first mode, when the color recording (printing) of a color photographic image or the like is performed, and the multicolor ink is recorded on the paper with minute dots, the leading edge of the paper P to be conveyed is positioned at the position of the registration roller pair 20. By temporarily stopping and eliminating the skew of the paper P, and by matching the transport position of the paper P with the print position of the recording head, printing on photographic paper or the like is performed so that color misregistration and color unevenness do not occur. To do.

  Next, it is determined whether or not the accuracy priority mode (intermittent paper feed mode) is set (S2). If the accuracy priority mode is set (S2: yes), the flag is switched to the first mode, that is, in a predetermined area in the RAM 302. A flag indicating the first mode is stored (S3), and the power transmission switching means 100 is set to the first mode (S4). For this purpose, the carriage 13 stopped at the standby position (home position, position 5 (Po5)) is largely moved in the direction of arrow C and toward the image recording area as shown in FIG. As a result, the first block 104 pushed by the urging spring 106a moves in the direction of arrow C along the regulating piece 110 of the annular groove 109b, and when the carriage 13 is disengaged from the annular groove 109b, the first set portion 111 is moved. And is held in position (position 1 (Po1)). In this state, the switching gear 102 meshes with the intermittent sheet feeding transmission gear 113, and power is transmitted to the gear of the drive shaft 14 of the first feeding unit 6 via the intermediate gears 119a and 119b shown in FIG. They are connected. In this state, when the LF motor 42 is reversely rotated, the driving roller 20a and the switching gear 102 of the registration roller pair 20 are reversely rotated (counterclockwise in FIG. 17A). Accordingly, the paper feed roller 7 is rotationally driven in the feeding direction (counterclockwise in FIG. 17A and normal rotation) via the gear transmission mechanism 50 in the paper feed arm 6a. As a result, a plurality of sheets P accumulated in the first paper feed cassette 5 are abutted against a separation member (not shown) having a large friction coefficient on the separation inclined surface 8 provided at the front end of the first paper feed cassette 5. Then, only the uppermost sheet P (one sheet P) is separated and fed to the U-turn conveyance path 9 (S5). At this time, since the driving roller 20a of the registration roller pair 20 is rotating in the reverse direction (counterclockwise rotation in FIG. 17A), the leading edge of the sheet P is pushed into the nip portion between the driven roller 20b and the driving roller 20a. It is possible to receive a resist action of correcting skew by applying.

  Next, as shown in FIG. 17B, the LF motor 42 is rotated forward by an appropriate number of steps, and the driving roller 20a and the switching gear 102 of the registration roller pair are rotated forward (clockwise rotation in FIG. 17A). Thus, the paper P sandwiched by the nip portion between the driven roller 20b and the driving roller 20a is conveyed below the paper feed cassette 2 (indexing operation). In the cueing operation, the leading edge of the paper P sandwiched between the registration roller pair 20 passes through the position of the paper detection body 116 and then advances to a predetermined position of the image recording unit and is set at a position where image recording can be started. To do. At this time, the paper feed roller 7 rotates in the opposite direction to the paper feed direction (counterclockwise in FIG. 17B), but the nip force at the registration roller pair 20 is applied at the location of the first paper feed cassette 5. Is set to be larger than the conveying force of the sheet feeding roller 7 (the biting force of the sheet feeding roller 7 on the sheet by the pressing force of the sheet feeding roller 7 on the sheet by the biasing torsion spring 38). The paper P nipped in this way slides with respect to the peripheral surface of the paper feed roller 7, and the paper feed arm 6 a has a release action of swinging upward about the drive shaft 14.

  Subsequently, when there is an image recording command from an external computer (not shown) or the like, one side (front surface) of the paper P from the nozzles of the recording head 12 while reciprocating the carriage 13 in the main scanning direction while the paper P is moved forward intermittently. Ink is ejected to start image recording (S6). When the paper P is moved forward intermittently, the registration roller pair 20 and the paper discharge roller pair 21 rotate in the same direction (forward rotation). Further, at the time of cueing operation and image recording, the drive shaft 14 rotates reversely, whereby the paper feed arm 6a rotates upward and the paper feed roller 7 rotates reversely (rotates counterclockwise in FIG. 5). is doing.

  When the recording for one sheet is completed (S7: yes), the paper P on which the image has been recorded starts to be discharged (S8). In that case, the LF motor 42 is rotated forward by an appropriate number of steps in order to continuously rotate the registration roller pair 20 and the discharge roller pair 21 continuously (S9: yes), and then the LF motor 42 is stopped (S10).

  Next, it is determined whether or not there is image recording data for the following paper (next page) (S11). If there is image recording data (S11: yes), the processing from step S5 to S11 is repeated. In this way, the paper P can be fed to the image recording unit one by one and a precise image recording process like a color photograph can be executed.

  As described above, at the position 1 (Po1), the lever portion 104a biased in the direction of the arrow C by the first biasing spring 106a can be held at the first set portion 111, and similarly, the position 2 (Po2). ), The lever portion 104a can be held in the second set portion 112, which is one step lower than the first set portion 111. Thus, after the lever portion 104a is once held in a predetermined position, the carriage 13 is image-recorded. Return to the area and concentrate on the image recording operation. Therefore, it is not necessary to move the carriage 13 to the power transmission switching means 100 out of the image recording area every time the registration operation is performed, and the image recording operation in the precision recording (intermittent paper feeding) mode can be quickly performed as a whole.

  Next, the case of the second mode will be described. When it is determined in step S2 that the mode is not the first mode (S11: no), the flag is set to the second mode, that is, the second mode is set in a predetermined area in the RAM 302. Is stored (S12), and the power transmission switching means 100 is set to the second mode (S13). In the second mode, in the image recording operation, a plurality of sheets P are continuously fed from the first sheet feeding cassette 5 in order to prioritize the image recording speed rather than emphasizing image quality. Therefore, the nip force at the nip portion between the driven roller 20b and the driving roller 20a is larger than the conveying force for conveying the paper P on the first paper feeding cassette 5 by the paper feeding roller 7, and the peripheral speed of the driving roller 20a. Is set to be larger than the peripheral speed of the paper feed roller 7. For example, it is set by the reduction ratio between the continuous paper feed transmission gear 114 and the intermediate gear 10.

  Then, the carriage 13 stopped at the position 1 (Po1) is moved by a predetermined amount in the direction of arrow E as shown in FIG. As a result, the lever portion 104 a is pushed by the first engagement step portion 13 a in the carriage 13. When the lever portion 104a is positioned at the second set portion 112 (position 2, Po2), the switching gear 102 and the continuous paper feed transmission gear 114 are engaged with each other, and the base end of the paper feed arm 6a is connected via one intermediate gear 120. Power is transmitted to the gear of the drive shaft 14. After that, even if the carriage 13 is moved in the direction of arrow C (image recording area), the lever portion 104a biased by the first biasing spring 106a is positioned at the second set portion 112 which is a lower step portion. The state can be maintained.

  When the LF motor 42 is rotated forward in order to start feeding the recording paper (paper P), the driving roller 20a and the switching gear 102 of the registration roller pair are rotated forward (clockwise as shown in FIG. 13A). And the paper feed roller 7 is also rotated forward in the paper feed direction. Accordingly, only the uppermost sheet P (one sheet P) is separated and fed to the U-turn conveyance path 9 (S14). Next, when the leading end of the sheet P reaches the nip portion between the driving roller 20a and the driven roller 20b, the sheet P is immediately sandwiched by the nip portion and conveyed below the sheet feeding cassette 2 without receiving a resist action (see FIG. 18 (b)), image recording on the first sheet P is started (S15). In the second mode, it is preferable that the ASIC 306 does not accept an output signal (ON / OFF signal) from the registration sensor 17.

  When one sheet P is nipped at the nip portion between the driving roller 20a and the driven roller 20b and is also nipped at the position of the paper feed roller 7 (as shown in FIG. 18B), both nip portions are Even when the sheet P is straddling the sheet), as described above, the nip force at the nip portion between the driven roller 20b and the driving roller 20a is generated by the sheet feeding roller 7 in the first sheet feeding cassette. 5 is set to be larger than the conveying force for conveying the paper P on the sheet 5 and the circumferential speed of the driving roller 20a is set to be larger than the circumferential speed of the paper feeding roller 7. Thus, the sheet P sandwiched by the nip portion can be reliably conveyed to the image recording portion.

  Next, a command with the next page (following paper) is received from the external device (S16: yes), and when the image recording of the preceding paper P is completed (S17: yes), the current flag is set to the first flag. Whether the mode is the second mode or not (S18). If the flag is the second mode (S18: second), the LF motor 42 is continuously continuously rotated forward to drive roller 20a, paper discharge roller 21a and The paper feed roller 7 is rotated forward. As a result, the preceding paper P (previous page) is discharged, and the next recording paper (following paper) is conveyed to the recording start position (S19), and image recording is performed on the recording paper of the next page (following paper). The process returns to step S15 so as to start (see FIG. 18C). In this way, a plurality of sheets P are continuously fed and conveyed without temporarily stopping the sheet P at the position of the registration roller pair 20, so that a high-speed recording operation is possible.

  Next recording paper processing control when there is no image recording data for the next recording paper (subsequent paper) during the continuous paper feeding operation (second mode) will be described. In this process, when the position of the leading edge of the succeeding sheet is positioned on the downstream side in the transport direction beyond the position determined by the leading edge of the sheet detector 116, or the leading edge of the succeeding sheet P has already been moved by the registration roller pair 20. When the paper is nipped, the paper is transported to the paper discharge side. Conversely, when the leading edge of the subsequent paper P is positioned upstream in the transport direction not detected by the registration sensor (paper sensor) 117, the subsequent paper P is The process of returning to one sheet cassette 5 is performed (see FIGS. 19A and 19B and FIGS. 21 and 22 which are flowcharts).

  If there is no image recording data for the succeeding sheet P, if the sheet P is left stopped in the middle of the transport path 9 where the succeeding sheet P exists, the curve is generated particularly in the U-turn-shaped transport path 9. Since the curl along the path is left on the paper P, if it is conveyed as it is at the next recording opportunity, a paper jam occurs when it enters between the recording head 12 and the plate 11, or the nozzle surface of the recording head 12 Inconveniences such as the gap with the surface of the paper P being too small or being in contact occur. Therefore, in order to avoid such inconvenience, the leading end portion of the sheet P is located downstream of the determination position by the leading end portion of the sheet detection body 116 in the transport direction, or the leading end portion of the succeeding sheet P is detected. When the sheet is already nipped by the registration roller pair 20, the sheet P is discharged to the sheet discharge unit side. In this way, the discharged paper P can be accumulated again in the first paper feed cassette 5 and reused.

  On the other hand, when there is no image recording data for the succeeding sheet P, and the leading end of the succeeding sheet P is located upstream in the transport direction, which is not detected by the registration sensor 117, it is not a sheet P having a short size such as a postcard. The rear part of the succeeding sheet P is still sandwiched between the sheet feeding roller 7 and the uppermost sheet P accumulated in the first sheet feeding cassette 5, and is thus out of the conveying path 9. This is because the size of the paper P is short, and the process of returning to the paper cassette 5 can be processed more quickly in terms of time.

  In step S16, when the command with the next page is not received (S16: no), that is, when there is no image recording data for the following paper P, the paper P (recording paper) positioned in the image recording unit is printed. A predetermined amount of about 3 passes in a row is conveyed in the paper discharge direction (S20). When the predetermined amount has been transferred (S20: yes), the flag is switched to the first mode (S21). As a result, a movement command is issued to the carriage 13, and the power transmission switching means 100 is switched to the first mode (position 1). In this state, image recording on the paper P positioned in the image recording unit is executed (S17). When the image recording operation is completed (S17: yes), the current flag state is inquired (S18).

  When it is determined in step S18 that the flag is first (S18: first), the next recording sheet (subsequent recording sheet) processing control is executed (S30). The detailed control is shown in the flowchart of FIG. First, during the continuous paper feeding operation, when the image recording for one page of the preceding recording paper (paper P) is completed, the registration sensor 117 is turned on (the leading edge of the succeeding paper P indicates the position of the paper detector 116). It is determined whether it is equivalent) (S31). When the registration sensor 117 is OFF (when the leading end of the succeeding sheet P does not reach the sheet detecting body 116, refer to FIG. 19A) (S31: no), the succeeding sheet P is fed into the sheet feeding cassette. In order to return to 5, the paper feed roller 7 is rotated reversely (S32). On the other hand, since the preceding paper P has finished image recording, the registration roller pair 20 and the paper discharge roller pair 21 rotate in the forward direction in order to be discharged to the paper discharge unit side.

  In other words, in the above case, the carriage 13 is moved in the maintenance portion direction (the direction of arrow E in FIG. 16B), and the lever portion 114a is positioned at position 1 (Po1) (see S21 and S22). In this position, the switching gear 102 meshes with the intermittent paper feed transmission gear 113 and feeds the paper feed arm 6a from the intermittent paper feed transmission gear 113 through the intermediate gears 119a and 119b, as in the above-described intermittent paper feed operation. A rotational force is transmitted to the paper roller 7. When the LF motor 42 is rotated forward, the driving roller 20a of the registration roller pair 20 and the driving roller 21a of the paper discharge roller pair 21 rotate forward, so that the preceding paper P is conveyed to the paper discharge unit side, Since the paper feed roller 7 rotates in the reverse direction, when the paper feed roller 7 is rotated by a predetermined amount (S33) and then stopped (S34), the subsequent paper P1 returns to the accumulation position of the first paper feed cassette 5 (FIG. 19 (a)).

  As described above, the first half (conveying downstream portion) of the succeeding paper P is located in the U-turn conveying path 9 and the second half (conveying upstream portion) of the paper P is located on the paper feed cassette 5 side. When the paper P is returned to the first paper feed cassette 5, the processing time is shorter, and when the non-recorded paper P is discharged to the paper discharge section through the image recording section, the paper P This is to eliminate the trouble of setting P in the first paper feed cassette 5 again.

  When the registration sensor 117 is ON (corresponding to the time when the leading edge of the succeeding paper P exceeds the position of the paper detection body 116) (S31: yes), the LF motor 42 is rotated in the reverse direction, and the paper feed roller 7 is rotated forward ( The drive roller 20a is rotated in the reverse direction (S35), rotated by a predetermined amount (S36), and the leading edge of the succeeding paper P1 is applied to the registration roller pair 20 to be subjected to the registration action. In this state, the LF motor 42 is temporarily stopped, and the rotation of the drive roller 20a and the paper feed roller 7 is stopped (S37) (see FIG. 19B). Subsequently, by rotating the LF motor 42 forward, the drive roller 20a and the paper discharge roller 21a are rotated forward to discharge the paper P. In this state, since the paper feed roller 7 rotates in the reverse direction (see FIG. 19B), when the paper feed roller 7 is rotated forward by a predetermined amount (S39), the paper further following the succeeding paper P1. P2 can be returned to the paper feed cassette 5 direction.

  As shown in FIG. 18B, from the contact point (feeding position in the claims) of the paper feed roller 7 to the paper P accumulated in the first paper feed cassette 5 to the nip position of the registration roller pair 20. The distance along the U-turn conveyance path 9 is L1, and the distance from the contact point (the feeding position in the claims) to the separation member on the separation inclined surface 8 is L2. In the case of continuous paper feeding operation, the succeeding paper P1 is fed and conveyed by the rotation of the paper feeding roller 7 at the moment when the trailing edge of the preceding paper P deviates from the contact point with the paper feeding roller 7. Therefore, the distance L2 is a wrap amount (overlap amount) along the transport direction between the preceding paper P and the following paper P1. However, the difference between L2 and L1 is set to be longer than a predetermined value, and the difference (V1−V2) between the peripheral speed V1 of the drive roller 20a and the peripheral speed V2 (V1> V2) of the paper feed roller 7 Is set to be equal to or greater than a predetermined value, the leading edge of the succeeding sheet P1 does not reach the nip position when the trailing edge of the preceding sheet P moves downstream from the nip position of the registration roller pair 20 in the transport direction. Thus, an appropriate gap (paper interval) can be formed between the trailing edge of the preceding paper P and the leading edge of the succeeding paper P1.

  Therefore, even if a plurality of sheets P are continuously fed and conveyed, the image recording unit can record all of the image recording data corresponding to each sheet P without omission. That is, in the image recording unit, the end edge of the preceding paper P and the leading edge of the succeeding paper P1 are not overlapped (wrapped), and the image is not recorded across both papers. . In the above case, when the trailing edge of the preceding paper P that is transported only by the registration roller pair 20 deviates from the feeding position by the paper feeding roller 7, the feeding of the subsequent paper P1 by the paper feeding roller 7 is started. If controlled, there is an effect that it is possible to more surely form the above-mentioned sheet interval.

  In the present invention, the recording head 12 capable of recording an image on the paper P is mounted, and the carriage 13 that can reciprocate in the main scanning direction is provided. A power transmission switching means 100 for switching power transmission for the mode is provided, and this power transmission switching means 100 has a plurality of driving force transmission units (intermittent paper feed transmission gear 113, continuous feeding) for transmitting power for a plurality of operating parts. Paper driving gear 114, lower sheet feeding transmission gear 121 and maintenance transmission gear 115), and the driving force from the driving gear 101, which is one power output unit, according to the movement position of the carriage 13 along the main scanning direction. A switching gear 102, which is a switching portion that selectively transmits power to the transmission portion, and a position for moving the switching gear 102 along the main scanning direction. Since the switching gear 102 is urged from both directions along the main scanning direction. By simply moving the carriage 13 in the main scanning direction, the switching gear 102 moves and selectively meshes with one of the plurality of driving force transmission units. In the present invention, since there is a position holding means for each selected meshing position of the switching gear 102 and the driving force transmission unit, even if the carriage 13 moves away from the switching gear 102 into the image recording area, Engagement, that is, the power transmission state can be maintained. As a result, in continuous feeding operation and intermittent feeding operation, the time for the operation such as moving the carriage 13 is reduced in order to select the driving force transmission state, and the image recording operation is made faster and more efficient. There is an effect that can be.

  In the present invention, as described above, the paper P accumulated in the first paper feed cassette 5 is fed to the U-turn conveyance path 9 one by one by the paper feed roller 7, and the fed paper P is fed to the registration roller pair. 20 is configured to be conveyed to an image recording unit, while an image is recorded on the sheet P by a recording head 12 mounted on a carriage 13 that reciprocates in a direction crossing the conveyance direction of the sheet P. A registration roller pair 20 is disposed in the conveyance path 9 to temporarily stop the fed paper P and perform alignment control. A continuous paper feeding mode and intermittent paper feeding are provided at one end of the carriage 13 in the moving direction. The power transmission switching means 100 for switching the combination of rotation / stop of the driving roller 20a and the paper feeding roller 7 in the registration roller pair 20 is arranged in the mode, and the carriage 13 is moved. Further, since the power transmission switching means 100 is operated to control to selectively switch between the continuous paper feeding mode and the intermittent paper feeding mode, the image quality can be obtained without requiring high-speed image recording. Depending on the request of each user (user) when high-speed image recording is required without emphasizing image recording quality on the contrary, mode selection can be made according to the request of each user. There is an effect that it can be easily switched to the paper / conveying operation.

  The continuous paper feed mode is a mode in which the drive roller 20a and the paper feed roller 7 in the registration roller pair 20 are continuously rotated in the same direction. The intermittent paper feed mode is a paper feed direction of the paper feed roller 7. In this mode, the paper P is temporarily stopped by the forward rotation to the forward direction and the reverse rotation operation of the drive roller 20a, and then the paper feed roller 7 is reversely driven when the paper P is conveyed by the forward rotation of the drive roller 20a. In any of these modes, the power transmission switching means 100 is provided with holding means for holding the carriage 13 in the selected mode when the carriage 13 moves back to the image recording area. Since the mode is not changed even if the carriage 13 is moved back to the image recording area after the mode is once selected and moved to the 100 side, the registration mode is not changed in the intermittent feeding mode as in the conventional case. There is no need to move the carriage 13 to the power transmission switching means 100 for every operation (alignment operation), and efficient image recording can be executed.

  Further, a registration roller pair 20 is disposed upstream of the carriage 13 in the conveyance direction of the paper P, and a paper feed roller 7 is disposed upstream of the registration roller pair 20. Since the paper feed roller 7 is configured to be rotationally driven in the same direction by a single paper transport drive motor (LF motor) 24, the configuration of paper feed and transport is simplified.

  In addition, the peripheral speed of the drive roller 20a is set to be larger than the peripheral speed of the paper feed roller 7, and the paper feed roller 7 swings from the upper side so as to be able to contact and separate from the surface of the paper P to be accumulated. Since the paper feed arm 6a is urged so as to press against the surface of the paper P to be deposited, the subsequent paper P is fed to the registration roller pair 20 and the paper feed roller. 7, when the paper P is discharged to the paper discharge side, if the peripheral speed of the drive roller 20 a is set to be greater than the peripheral speed of the paper feed roller 7, Even if some back tension is applied to the paper P by the roller 7, the paper feeding arm 6a is pulled by the paper P to be transported, so that the pressing force on the paper P by the paper feeding arm 6a and the paper feeding roller 7 is reduced. For transporting paper P to the paper discharge side Never lead to disabilities.

  The nip force by the registration roller pair 20 is set to be larger than the conveying force at the position of the paper feed roller 7, and the peripheral speed of the drive roller 20 a is set to be larger than the peripheral speed of the paper feed roller 7. Since there is a control means for controlling the drive roller 20a and the paper feed roller 7 to continuously rotate in the same direction when there is image data for the subsequent paper P1, the conventional method is used. Compared with the paper feeding operation in which the leading edge of the paper P fed out from the paper feeding cassette one by one by the paper feeding roller is temporarily stopped at the position of the registration roller pair 20, a plurality of sheets of paper P are continuously recorded in the image recording unit. Therefore, it is possible to efficiently perform image recording with a simple configuration at a high speed by performing a continuous image recording operation on a plurality of sheets P.

  In the present invention, the paper feed roller 7 is provided at the front end portion of the paper feed arm 6 a that swings so as to be able to come in contact with and separate from the surface of the paper P accumulated in the first paper feed cassette 5. Therefore, it is possible to easily perform continuous paper feeding operation, and to switch between intermittent paper feeding operation (precision image recording processing) and continuous paper feeding operation (high-speed recording processing). This can be realized by using the same paper feed unit 6, and when there is no image data for the subsequent paper P1, the transfer direction of the subsequent paper P1 can be automatically selected. There is an effect that it is easy to clean up.

  The present invention is not limited to the embodiments described with reference to the above description and drawings, and various modifications can be made without departing from the scope of the invention. For example, power cassettes are arranged in multiple stages (three or more stages), and power is transmitted so that multiple operation modes such as the above-described continuous sheet feeding operation and intermittent sheet feeding operation are executed when feeding each stage. The switching means 100 may be provided with a plurality of corresponding position holding portions.

  In addition, one sheet feeding cassette may be provided and a plurality of (three or more) operation modes may be provided, and a position holding unit corresponding to each operation mode may be provided. In each of the above cases, an operation mode of maintenance work may be added.

  Furthermore, the sheet feeding cassette that selectively executes the continuous sheet feeding operation and the intermittent sheet feeding operation is not the uppermost one but may be an arbitrary lower sheet feeding cassette.

1 is an overall perspective view of an image recording apparatus. It is a principal part side sectional view of a recording and paper feed cassette. It is a top view of the 1st lower case except an upper case. It is a principal part expanded side sectional view of a recording part. It is a side view of a 1st paper feed cassette and a paper feed unit. FIG. 6 is a partially cutaway plan view of a state in which the first paper cassette is attached to the recording unit. FIG. 6 is a perspective view of a recording unit in a state where a downstream guide plate and a platen are removed. It is a perspective view which shows the power transmission mechanism with respect to a power transmission switching means and a 2nd feeding means. It is the IX-IX line arrow expanded sectional view of FIG. (A) is a front view showing power transmission in a paper feed state in the intermittent paper feed mode (second mode), (b) is a perspective view, and (c) is a side view. (A) is a perspective view of a switching operation body (first block) and a posture forcing body (second block); It is a top view which shows the state from which a phase differs. (A) is a front view showing power transmission in a paper feeding state in the continuous paper feeding mode (first mode), (b) is a perspective view, and (c) is a side view. (A) is a front view which shows the power transmission in the paper feeding state in a 2nd feeding unit, (b) is a perspective view similarly, (c) is a side view similarly. (A) is a front view showing power transmission in the maintenance operation mode, (b) is a perspective view, and (c) is a side view. It is a schematic diagram of a power transmission switching means. (A) is a schematic front view (b) showing the state of switching to each mode by the power transmission switching means. (A) is a figure which shows the power transmission in the paper feeding state in intermittent paper feeding mode (1st mode), (b) is a figure which shows the power transmission at the time of image recording. (A) is a diagram showing power transmission in the paper feeding state in the continuous paper feeding mode (second mode), (b) is a diagram showing power transmission during image recording, and (c) is a feeding of the subsequent paper P. It is a figure which shows the power transmission at the time of paper. (A) is a figure which shows 1st Embodiment of the paper return process in continuous paper feed mode (2nd mode), (b) is a figure which shows 2nd Embodiment. It is a functional block diagram of a control device. It is a flowchart of control of image recording. 6 is a flowchart of sheet return control during a continuous sheet feeding operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image recording apparatus 5 1st paper feed cassette 6 Feeding unit 6a arm 7 Paper feed roller 10 Recording part 11 Platen 12 Recording head 13 Carriage 20 Registration roller pair 20a Drive roller 20b Driven roller 21 Paper discharge roller pair 24 CR motor 36 maintenance section 42 LF motor 50, 51 gear transmission mechanism 100 power transmission switching means 101 drive gear 102 switching gear 103 support shaft 104 first block 104a lever section 105 second block as posture forcing body 107 Guide block as a holding frame 109 Guide groove 109a Annular groove 110 Restricting pieces 108, 111, 112 Set portion as a holding portion 113 Intermittent paper feed transmission gear 114 Continuous paper feed power transmission gear 115 Maintenance power transmission gear 121 Stage feeding power transmission gear

Claims (16)

  1. A recording head capable of recording an image on a recording medium is mounted, and a carriage capable of reciprocating in the main scanning direction is provided. Power is transmitted to one end of the carriage for a plurality of operation modes for a plurality of operation parts. In an image recording apparatus provided with power transmission switching means for switching between
    The power transmission switching means is
    A plurality of driving force transmission units for transmitting power for each of the plurality of operating parts;
    A switching unit that selectively transmits power from one power output unit to the driving force transmission unit according to the movement position of the carriage along the main scanning direction;
    An image recording apparatus comprising: a position holding unit for holding a movement position of the switching unit along the main scanning direction.
  2. A paper feed cassette capable of storing and storing a recording medium below a recording unit by the recording head, and a maintenance unit for maintaining the recording head,
    2. The operating portion includes means for feeding a recording medium from the paper feed cassette to a recording unit and conveying the recording medium while recording an image, and operating means for the maintenance unit. The image recording apparatus described in 1.
  3. The paper feed cassettes are arranged in a plurality of upper and lower stages,
    The plurality of operating parts are feeding means corresponding to each stage for separating a recording medium from the recording medium deposited for each of the paper feeding cassettes and feeding the recording medium to the recording unit. The image recording apparatus according to claim 1, wherein the image recording apparatus is an image recording apparatus.
  4. The plurality of driving force transmission units are an input spur gear group arranged in a line along the main scanning direction,
    The switching portion includes a switching gear that is elastically biased in both directions along the main scanning direction so as to be reciprocally movable, and meshes with the input spur gear group,
    The position holding means includes a switching operation body for moving the switching gear in the main scanning direction in accordance with the movement of the carriage, and a plurality of holding portions for holding positions of the switching operation body in the main scanning direction. The image recording apparatus according to claim 1, further comprising:
  5.   5. The image recording apparatus according to claim 4, wherein the switching operation body includes a lever portion that engages / disengages with respect to the engaging portion of the carriage and engages / disengages with each holding portion.
  6.   The image recording apparatus according to claim 5, wherein the lever portion is slidably arranged with respect to a holding frame body on which the holding portion is formed.
  7.   7. An annular passage is formed in the holding frame so as to be slidable with the lever portion penetrating therethrough, and the holding portion is defined along the annular passage. The image recording apparatus described in 1.
  8. A plurality of holding portions are formed on one side of the annular passage so that the lever portion sequentially engages and disengages only when the carriage moves in the main scanning direction and away from the image recording area.
    When the lever portion moves along the other side of the annular passage, the lever portion includes a restricting piece that guides the lever portion so as to be engaged only with the holding portion closest to the image recording area. The image recording apparatus according to claim 7.
  9.   The image recording apparatus according to any one of claims 4 to 9, wherein the switching operation body and the switching gear are supported by a single support shaft so as to be slidable and rotatable.
  10.   The image recording apparatus according to claim 9, wherein the carriage includes a plurality of engaging portions that can engage and disengage the lever portion.
  11.   A posture forcing body is arranged on the support shaft while maintaining a predetermined posture on the opposite side of the switching gear across the switching operation body, and the lever portion is locked to each holding portion by the posture forcing body. 11. The image recording apparatus according to claim 9, wherein the switching operation body is configured to be urged to rotate in one direction around the axis of the support shaft.
  12.   In the power transmission switching means, the driving force transmission unit for the maintenance unit that performs the maintenance work by waiting the carriage at one end in the moving direction is a position that is the most separated from the image recording area in the main scanning direction. On the other hand, the driving force transmission part to the feeding means for the upper sheet cassette is disposed in the vicinity of the outside of the image recording area on the recording medium along the main scanning direction. The image recording apparatus according to claim 2, wherein a driving force transmission unit to the feeding unit for the lower sheet feeding cassette is disposed between the two power transmission units.
  13.   The driving force transmission unit to the feeding means for the arbitrary one sheet feeding cassette is separated into an intermittent sheet feeding transmission gear and a continuous sheet feeding transmission gear. The image recording apparatus described in 1.
  14.   The image recording apparatus according to claim 11, wherein the switching operation body, the switching gear, and the posture forcing body are separated so as to be able to contact and separate at adjacent positions.
  15.   The image recording apparatus according to claim 11, wherein the posture forcing body includes a maintenance piece for maintaining its own posture.
  16.   The image recording apparatus according to claim 6, wherein the holding frame is fixed to a guide plate that guides and supports the carriage along a main scanning direction.
JP2005285287A 2005-09-29 2005-09-29 Image recorder Pending JP2007090761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005285287A JP2007090761A (en) 2005-09-29 2005-09-29 Image recorder

Applications Claiming Priority (21)

Application Number Priority Date Filing Date Title
JP2005285287A JP2007090761A (en) 2005-09-29 2005-09-29 Image recorder
DE602006018837T DE602006018837D1 (en) 2005-08-31 2006-08-31 Printer with sheet feeder
US11/513,179 US7955012B2 (en) 2005-08-31 2006-08-31 Printer with force transmitting path selecting mechanism
US11/513,388 US20070048059A1 (en) 2005-08-31 2006-08-31 Printer with sheet sending mechanism
DE602006008544T DE602006008544D1 (en) 2005-08-31 2006-08-31 Printer with a mechanism for selecting a path
EP06018216A EP1759861B1 (en) 2005-08-31 2006-08-31 Printer with sheet sending mechanism
EP06018217A EP1759862B1 (en) 2005-08-31 2006-08-31 Printer with sheet sending mechanism
AT06018217T AT491580T (en) 2005-08-31 2006-08-31 Printer with blade feeding device
US11/468,847 US8348271B2 (en) 2005-08-31 2006-08-31 Printer with sheet sending mechanism
DE602006009449T DE602006009449D1 (en) 2005-08-31 2006-08-31 Printer with sheet feeder
DE202006020747U DE202006020747U1 (en) 2005-08-31 2006-08-31 Printer with power path selection mechanism
EP06018215A EP1759860B1 (en) 2005-08-31 2006-08-31 Printer with force transmitting path selecting mechanism
US11/759,214 US7934882B2 (en) 2005-08-31 2007-06-06 Printer with sheet sending mechanism
US13/101,111 US8475067B2 (en) 2005-08-31 2011-05-04 Printer with force transmitting path selecting mechanism
US13/429,258 US8393809B2 (en) 2005-08-31 2012-03-23 Printer with force transmitting path selecting mechanism
US13/852,768 US8727648B2 (en) 2005-08-31 2013-03-28 Printer with force transmitting path selecting mechanism
US14/276,655 US9096085B2 (en) 2005-08-31 2014-05-13 Printer with force transmitting path selecting mechanism
US14/816,592 US9248676B2 (en) 2005-08-31 2015-08-03 Printer with force transmitting path selecting mechanism
US14/997,224 US9487038B2 (en) 2005-08-31 2016-01-15 Printer with force transmitting path selecting mechanism
US15/299,583 US9782988B2 (en) 2005-08-31 2016-10-21 Printer with force transmitting path selecting mechanism
US15/726,500 US10071577B2 (en) 2005-08-31 2017-10-06 Printer with force transmitting path selecting mechanism

Publications (1)

Publication Number Publication Date
JP2007090761A true JP2007090761A (en) 2007-04-12

Family

ID=37977002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005285287A Pending JP2007090761A (en) 2005-09-29 2005-09-29 Image recorder

Country Status (1)

Country Link
JP (1) JP2007090761A (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2020300A2 (en) 2007-07-31 2009-02-04 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP2009034832A (en) * 2007-07-31 2009-02-19 Brother Ind Ltd Image recording apparatus
JP2009161267A (en) * 2007-12-28 2009-07-23 Brother Ind Ltd Assembly body, and image recorder
JP2009242079A (en) * 2008-03-31 2009-10-22 Brother Ind Ltd Image recording apparatus
JP2009255307A (en) * 2008-04-11 2009-11-05 Brother Ind Ltd Image recorder
JP2010017993A (en) * 2008-07-14 2010-01-28 Brother Ind Ltd Image forming apparatus
EP2233298A1 (en) 2009-03-27 2010-09-29 Brother Kogyo Kabushiki Kaisha Ink supply devices
EP2233299A1 (en) 2009-03-27 2010-09-29 Brother Kogyo Kabushiki Kaisha Ink supply devices
JP2010241011A (en) * 2009-04-07 2010-10-28 Seiko Epson Corp Recording apparatus
US7942491B2 (en) 2007-08-31 2011-05-17 Seiko Epson Corporation Serial recording apparatus and method of feeding recording medium
US7959147B2 (en) 2006-12-27 2011-06-14 Brother Kogyo Kabushiki Kaisha Sheet feeding apparatus and image recording apparatus
JP2012000898A (en) * 2010-06-17 2012-01-05 Brother Industries Ltd Conveying device for inkjet recording apparatus
US8157346B2 (en) 2009-03-27 2012-04-17 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8210639B2 (en) 2009-03-27 2012-07-03 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8235493B2 (en) 2009-09-24 2012-08-07 Brother Kogyo Kabushiki Kaisha Image recording apparatus
US8322822B2 (en) 2009-03-27 2012-12-04 Brother Kogyo Kabushiki Kaisha Ink supply device and method of determining type of ink cartridge
JP2013173259A (en) * 2012-02-24 2013-09-05 Ricoh Co Ltd Image forming apparatus
JP2013208720A (en) * 2012-03-30 2013-10-10 Brother Industries Ltd Image recording apparatus
JP2014069410A (en) * 2012-09-28 2014-04-21 Brother Ind Ltd Image recorder
US8740344B2 (en) 2012-03-30 2014-06-03 Brother Kogyo Kabushiki Kaisha Ink-jet recording apparatus
US8967752B2 (en) 2010-12-28 2015-03-03 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
JP2016064578A (en) * 2014-09-25 2016-04-28 ブラザー工業株式会社 Image recording apparatus
JP2016137665A (en) * 2015-01-28 2016-08-04 ブラザー工業株式会社 Electronic equipment
JP2016140978A (en) * 2015-01-29 2016-08-08 ブラザー工業株式会社 Image formation device
JP2017124638A (en) * 2017-04-27 2017-07-20 ブラザー工業株式会社 Ink jet recording device
US9713930B2 (en) 2013-02-18 2017-07-25 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
US9889665B2 (en) 2015-09-30 2018-02-13 Brother Kogyo Kabushiki Kaisha Liquid discharging device

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7959147B2 (en) 2006-12-27 2011-06-14 Brother Kogyo Kabushiki Kaisha Sheet feeding apparatus and image recording apparatus
US8226206B2 (en) 2007-07-31 2012-07-24 Brother Kogyo Kabushiki Kaisha Image recording apparatus
EP2020301A2 (en) 2007-07-31 2009-02-04 Brother Kogyo Kabushiki Kaisha Image recording apparatus
US7934784B2 (en) 2007-07-31 2011-05-03 Brother Kogyo Kabushiki Kaisha Image recording apparatus
EP2020300A2 (en) 2007-07-31 2009-02-04 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP2009034832A (en) * 2007-07-31 2009-02-19 Brother Ind Ltd Image recording apparatus
US7942491B2 (en) 2007-08-31 2011-05-17 Seiko Epson Corporation Serial recording apparatus and method of feeding recording medium
US8454123B2 (en) 2007-12-28 2013-06-04 Brother Kogyo Kabushiki Kaisha Assembly and image recording apparatus
JP2009161267A (en) * 2007-12-28 2009-07-23 Brother Ind Ltd Assembly body, and image recorder
JP4600504B2 (en) * 2008-03-31 2010-12-15 ブラザー工業株式会社 Sheet guidance device
JP2009242079A (en) * 2008-03-31 2009-10-22 Brother Ind Ltd Image recording apparatus
US8297611B2 (en) 2008-03-31 2012-10-30 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP4582183B2 (en) * 2008-04-11 2010-11-17 ブラザー工業株式会社 Image recording device
JP2009255307A (en) * 2008-04-11 2009-11-05 Brother Ind Ltd Image recorder
US8109598B2 (en) 2008-04-11 2012-02-07 Brother Kogyo Kabushiki Kaisha Image recording device
JP2010017993A (en) * 2008-07-14 2010-01-28 Brother Ind Ltd Image forming apparatus
US8210639B2 (en) 2009-03-27 2012-07-03 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8157346B2 (en) 2009-03-27 2012-04-17 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8182060B2 (en) 2009-03-27 2012-05-22 Brother Kogyo Kabushiki Kaisha Ink supply devices
EP2233299A1 (en) 2009-03-27 2010-09-29 Brother Kogyo Kabushiki Kaisha Ink supply devices
EP2233298A1 (en) 2009-03-27 2010-09-29 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8246139B2 (en) 2009-03-27 2012-08-21 Brother Kogyo Kabushiki Kaisha Ink supply devices
US8322822B2 (en) 2009-03-27 2012-12-04 Brother Kogyo Kabushiki Kaisha Ink supply device and method of determining type of ink cartridge
JP2010241011A (en) * 2009-04-07 2010-10-28 Seiko Epson Corp Recording apparatus
US8235493B2 (en) 2009-09-24 2012-08-07 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP2012000898A (en) * 2010-06-17 2012-01-05 Brother Industries Ltd Conveying device for inkjet recording apparatus
US9308745B2 (en) 2010-12-28 2016-04-12 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
US8967752B2 (en) 2010-12-28 2015-03-03 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
JP2013173259A (en) * 2012-02-24 2013-09-05 Ricoh Co Ltd Image forming apparatus
JP2013208720A (en) * 2012-03-30 2013-10-10 Brother Industries Ltd Image recording apparatus
US8740344B2 (en) 2012-03-30 2014-06-03 Brother Kogyo Kabushiki Kaisha Ink-jet recording apparatus
US8801145B2 (en) 2012-03-30 2014-08-12 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP2014069410A (en) * 2012-09-28 2014-04-21 Brother Ind Ltd Image recorder
US10160240B2 (en) 2013-02-18 2018-12-25 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
US9713930B2 (en) 2013-02-18 2017-07-25 Brother Kogyo Kabushiki Kaisha Inkjet recording apparatus
JP2016064578A (en) * 2014-09-25 2016-04-28 ブラザー工業株式会社 Image recording apparatus
US9327533B2 (en) 2014-09-25 2016-05-03 Brother Kogyo Kabushiki Kaisha Image recording apparatus
JP2016137665A (en) * 2015-01-28 2016-08-04 ブラザー工業株式会社 Electronic equipment
US10044892B2 (en) 2015-01-28 2018-08-07 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operation prior to acceptance of job executing instruction
JP2016140978A (en) * 2015-01-29 2016-08-08 ブラザー工業株式会社 Image formation device
US10377159B2 (en) 2015-01-29 2019-08-13 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operations prior to image data receipt
US9889665B2 (en) 2015-09-30 2018-02-13 Brother Kogyo Kabushiki Kaisha Liquid discharging device
JP2017124638A (en) * 2017-04-27 2017-07-20 ブラザー工業株式会社 Ink jet recording device

Similar Documents

Publication Publication Date Title
JP4277902B2 (en) Sheet conveying apparatus and image recording apparatus
JP3818368B2 (en) Duplex printing device
JP4277223B2 (en) Paper feeding device and image recording apparatus having the same
JP4717571B2 (en) Image forming apparatus
US10071577B2 (en) Printer with force transmitting path selecting mechanism
US7614738B2 (en) Image recording apparatus
JP4735112B2 (en) Inkjet recording device
JP2005314067A (en) Recorded medium feeding device and image recording device provided with it
JP4244960B2 (en) Inkjet recording device
US7515866B2 (en) Image forming apparatus
EP1707392B1 (en) Image recording device with paper skip correction means
JP2007144766A (en) Inkjet recording device
US20070076036A1 (en) Image-recording device
JPH08295034A (en) Color recording apparatus
JP2007145524A (en) Image recording device
JP4458012B2 (en) Image recording device
JP2009007083A (en) Paper feeder and image recording device
JP4347157B2 (en) Inkjet recording device
JP4115268B2 (en) Image reading and recording device
JP4946194B2 (en) Inkjet recording device
JP4645184B2 (en) Recording medium conveying method and image recording apparatus
US7083245B2 (en) Recording apparatus
JPH10128964A (en) Ink jet recording device
JP3970097B2 (en) Recording device
JP4367325B2 (en) Discharge device and inkjet printer

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070124

A977 Report on retrieval

Effective date: 20081128

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Effective date: 20081203

Free format text: JAPANESE INTERMEDIATE CODE: A131

A521 Written amendment

Effective date: 20090130

Free format text: JAPANESE INTERMEDIATE CODE: A523

A02 Decision of refusal

Effective date: 20090603

Free format text: JAPANESE INTERMEDIATE CODE: A02

A521 Written amendment

Effective date: 20090828

Free format text: JAPANESE INTERMEDIATE CODE: A523

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20090910

A912 Removal of reconsideration by examiner before appeal (zenchi)

Effective date: 20100312

Free format text: JAPANESE INTERMEDIATE CODE: A912