JP2007160560A - Inkjet recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely carry out mounting positioning of a recording cartridge to a carriage. <P>SOLUTION: A recording cartridge insertion guide is set at a recording cartridge replacement station. The recording cartridge is mounted while a position in a lateral direction (scanning direction) is guided by the mounting guide. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image recording apparatus, and more particularly to an ink jet recording apparatus that performs recording by ejecting ink from recording means that is detachably mounted on a carriage that is movable along a recording medium.

  In recent years, with the spread of personal computers and digital cameras, it has become possible to easily handle image information, and the demand for a recording device that is easy to output is increasing. Among the recording systems used in the recording apparatus, there is an inkjet recording system known as a system that enables relatively small, inexpensive, and high-definition recording.

  In a recording apparatus using an ink jet recording system, a carriage (CR) equipped with an ink jet head (cartridge) having several tens to several hundreds of ink discharge ports is a driving belt that transmits the driving force of a carriage driving motor. It is configured to be movable by being connected to the section.

  As a result, the ink jet cartridge can move along the platen disposed so as to face the ejection surface, and during this movement, reciprocating motion (scanning) is performed over the entire width of the recording medium fed onto the platen, and recording is performed. Can be done. The recording medium is conveyed by a sheet conveying means for each scanning of the carriage for a distance determined according to the pitch of the ejection ports. By repeating the above scanning and conveyance of the recording medium, recording is performed on the entire surface of the recording medium.

  In an ink jet recording apparatus having recording means (recording head) detachably mounted on a carriage, a user can use a new recording head when ink in a head cartridge as recording means is used up or when the recording means fails. There is one that can be easily returned to a recordable state by replacing it. In addition, in recent years, ink jet printing apparatuses with advanced functions have been developed, and by replacing a permanent print head (such as a head cartridge) with an optional head such as a photo cartridge, output (recording) of photo-like photo images and the like. An ink jet recording apparatus configured to enable the above-mentioned has been widely used.

  In the conventional carriage configuration, in order to electrically connect the recording head and the recording apparatus main body, a substrate (head substrate) or an FPC having a conductor exposed portion not subjected to resist is provided on the recording head side. In many cases, a pressure contact connector for electrical connection with the conductor exposed portion of the recording head is provided on the carriage for mounting the printer. This pressure contact connector is usually one in which a metal is plated and pressed against a conductor exposed portion of the recording head using elastic deformation of the metal. Further, the pressure contact connector is soldered to a board (carriage board) mounted on the carriage, and the board on the carriage is connected to a circuit board (control circuit) on the apparatus main body side via FFC or FPC. Are electrically coupled.

  In the case where the user replaces the recording head, a conventional technique will be described in the following disclosure regarding a method for positioning the head on the carriage.

As a technique disclosed in Patent Document 1, a holding unit that detachably holds a recording head that forms an image on a recording medium, and a positioning of the recording head at a predetermined position of the holding unit when the recording head is mounted on the holding unit In the recording apparatus having the positioning means, the positioning means restricts the position of the recording head in one direction, and the second fitting means restricts the position of the recording head in two directions. And there is a technology having a regulating means for fitting the second fitting means prior to the first fitting means when the recording head is attached to the holding means.
JP 07-251547 A

  However, the conventional technique has a problem that a lever operation or the like is necessary and the head mounting property is not simple. In addition, when mounting without a lever, the mounting is likely to be unstable because the user mounts the guide while guiding it on the guide surface of the carriage. In particular, in a serial type recording apparatus, the carriage is likely to move in the scanning direction of the carriage, so that positioning is likely to be unstable.

  The present invention solves the above-mentioned problems by applying a recording apparatus using the following characteristic means.

(Means 1)
A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; In the recording apparatus having the cartridge attachment / detachment guide, the recording attachment / detachment guide is provided with a guide portion for guiding the insertion of the recording cartridge, and is configured to be pressed in the positioning direction when the cartridge is inserted into the carriage. The carriage is moved in the scanning direction by the insertion force of the cartridge.

(Means 2)
A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; A recording medium having a pressing means for pressing the carriage to a positioning portion provided on the carriage, a cartridge exchange station provided in a scanning range of the carriage, and the cartridge attachment / detachment guide provided on the exchange station. In the apparatus, the recording attachment / detachment guide is provided with a guide portion for guiding the recording cartridge to be inserted, and the holding force in the scanning direction by the stop holding control in the scanning direction generated when the carriage is stopped at the exchange station is pressed. Less than the pressure You have to move the carriage in the scanning direction in the insertion force of the cartridge.

(Means 3)
A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; The cartridge replacement station is provided in a scanning range of the carriage, and the cartridge mounting / dismounting guide is provided in the replacement station, wherein the recording mounting / dismounting guide has a guide portion for guiding the insertion of the recording cartridge, The holding force in the scanning direction by the stop holding control generated at the carriage exchange station is made weaker than the off pressure of the pressing means.

According to the present invention, it is possible to mount the cartridge to the carriage with high accuracy without using a complicated mechanism, and it is possible to prevent electrical contact, color misregistration, ruled line misalignment, etc. As described above, according to the present invention, it is possible to provide an ink jet recording apparatus that uses a detachable recording cartridge that is inexpensive and easy to use.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the same reference numerals denote the same or corresponding parts throughout the drawings.

  FIG. 11 is an external perspective view of a recording apparatus provided with a sheet conveying apparatus according to an embodiment of the present invention. FIG. 1 is a schematic perspective view showing an internal configuration of the recording apparatus of the present invention. A case where the apparatus is an ink jet recording apparatus that performs recording on a recording medium by discharging ink will be described.

  The recording apparatus according to the present embodiment is roughly composed of a paper feeding section 37, a recording medium transport section (paper transport section) 20, a recording section head 200, and a recording head (recording means) maintenance section. Recording data is sent from a host device (not shown), stored in a recording device controller (not shown) on the control board, and a recording operation start command is issued from the controller to start the recording operation.

  When recording starts, a paper feeding operation is first performed. The paper feeding unit is a main ASF (Automatic Sheet Feeder), and this paper feeding unit pulls out one recording sheet for each recording operation from a recording medium (recording sheet) stacked on the pressure plate 41. And an automatic paper feeding unit that sends the recording medium to a recording medium conveyance unit (paper conveyance unit). At the start of the paper feeding operation, the ASF motor 46 rotates in the forward direction, and the power rotates the cam holding the pressure plate 41 via the gear train. When the cam is removed by the rotation of the ASF motor 46, the pressure plate 41 is urged toward the paper feed roller 39 by the action of a pressure plate spring (not shown). At the same time, the paper feed roller 39 rotates in the direction in which the recording medium (paper) is conveyed, so that only the uppermost one of the stacked recording media is conveyed. At that time, a plurality of recording sheets may be sent out simultaneously depending on the frictional force between the paper feed roller 39 and the recording sheet 4 and the frictional force between the recording sheets.

  In that case, a separation roller 40 is pressed against the paper feed roller 39 and has a predetermined return rotational torque in the direction opposite to the recording sheet conveyance direction, and this separation roller 40 is the recording sheet closest to the paper feed roller 39. It works to push back the recording sheet other than the original pressure plate. At the end of the ASF paper feeding operation, the separation roller 40 is released from the pressure contact state with the paper feeding roller 39 by the operation of the cam and is separated by a predetermined distance. At that time, the recording sheet is surely reached a predetermined position on the pressure plate. In order to push back, the return claw 43 rotates and plays a role. With the operation as described above, only one recording sheet is conveyed to the sheet conveying unit.

  The recording sheet 4 as a recording medium conveyed from the paper feeding unit is conveyed toward a nip portion between a conveying roller (paper feeding roller) 21 and a pinch roller 22 as a paper conveying unit (recording medium conveying unit). Since the center of the pinch roller 22 is attached with a slight offset in the direction approaching the first paper discharge roller 30 with respect to the center of the transport roller 21, the tangential direction angle at which the recording sheet is inserted is from the horizontal. Slightly inclined. Therefore, the sheet is conveyed at an angle in the sheet passing path formed by the pinch roller holder 23 and the guide member (sheet passing guide) 70 so that the leading end of the sheet is accurately guided to the nip portion.

  A sheet (recording sheet) conveyed (feeded or fed) by the ASF 37 is abutted against the nip portion of the conveying roller 21 in a stopped state. At this time, a paper loop is formed between the paper feed roller 39 and the transport roller 21 by transporting the main ASF 37 for a distance slightly longer than a predetermined sheet passing path length. When the leading edge of the sheet is pressed against the nip portion of the conveying roller 21 with a force that the loop returns straight, the leading edge of the sheet becomes parallel to the conveying roller 21 and the so-called registration removing operation is completed. After the registration removal operation is completed, the rotation (forward rotation) of the LF motor (conveyance motor) 26 is performed in the direction in which the recording sheet moves in the forward direction (the direction in which the recording sheet advances toward the first paper discharge roller 30). ).

  Thereafter, the paper feeding roller 39 is cut in driving force and is rotated with the recording sheet. At this time, the recording sheet is conveyed only by the conveying roller 21 and the pinch roller 22. The recording sheet advances in the positive direction for every predetermined line feed amount, and advances along the rib provided on the platen 29.

  The leading edge of the paper gradually reaches the nip portion of the first paper discharge roller 30 and the first spur train 32 and the nip portion of the second paper discharge roller 31 and the first spur train 33. Since the peripheral speed of the paper roller 31 is set to be substantially equal to the peripheral speed of the transport roller 21 and the first discharge roller 30 and the second discharge roller 31 are connected from the transport roller 21 by a gear train, the first discharge The paper roller 30 and the second paper discharge roller 31 rotate in synchronization with the conveyance roller 21, so that the recording sheet 4 is conveyed without being loosened or pulled.

  The recording unit mainly includes a recording head 200 as recording means, and a carriage 100 that mounts the recording head 200 and scans (moves) in a direction crossing (usually orthogonal) to the recording sheet conveyance direction. The carriage 100 is guided and supported by a guide rail 14 fixed to the chassis 10 and a support rail 15 that is a part of the chassis 10, and a carriage belt 16 that is stretched between a carriage motor 17 and an idler pulley 20. The carriage motor 17 is reciprocated (scanned) by transmitting the driving force of the carriage motor 17.

  A plurality of ink flow paths are formed inside the recording head 200, and the ink flow paths communicate with ejection ports arranged on a surface (ejection port surface) facing the platen 29. Ink discharge actuators (energy generating means) are arranged inside each of the plurality of discharge ports forming the discharge port array. As this actuator, for example, an actuator using a liquid film boiling pressure by an electrothermal transducer (heat generating element), an electromechanical transducer (electric-pressure transducer) such as a piezo element, or the like is used.

  In an ink jet recording apparatus using the above recording head 200 as a recording apparatus, a head driver (not shown) signal is transmitted to the recording head 200 via a flexible flat cable 73, so that ink can be used in accordance with recording data. It is possible to eject drops. Further, by reading the code strip 18 stretched on the chassis 10 by a CR (carriage 100) encoder 19 mounted on the carriage 100, ink droplets can be ejected toward the recording sheet at an appropriate timing. In this way, when the recording for one line is completed, the recording sheet is conveyed (paper fed) by a necessary amount by the sheet conveying unit (recording medium conveying unit). By repeating this operation, the recording operation over the entire surface of the recording sheet becomes possible. The above is the outline of the recording apparatus.

  On the other hand, FIG. 2 is a perspective view of a recording head as recording means. In this embodiment, the replaceable ink jet cartridge (head cartridge) in which the recording means (recording head) and the ink reservoir (ink tank) are integrated. ) Is used. In the case of normal color recording, the recording head is provided with a black cartridge 200A as a recording means in the recording means accommodating portion, and the three-color cartridge 200B (cyan, magenta, yellow) as the recording means in the recording means accommodating portion. ) Is used. It is also possible to use a photo cartridge (not shown) (black, light cyan, light magenta) as an optional head instead of the black cartridge when recording in photographic tone photo color. Furthermore, when the recording apparatus is used as a scanner, a scanner head (not shown) as an optional head can be used instead of the black cartridge 200A or the three-color cartridge 200B.

  The head cartridges 200A and 200B and the photo cartridge as an optional head (which may be included in the optional head when a scanner head is used) have substantially the same shape and size.

  FIG. 2 shows a typical shape 200A of the recording head according to the present embodiment. As shown in FIG. 2, a positioning groove 202 is formed at the lower part of both side surfaces of the head cartridge main body 200A, and a rough guide projection 203 is formed at a position on the contact surface in front of the positioning groove 202 on both side surfaces. Has been.

  FIG. 3 is a schematic perspective view showing a state in which the black cartridge head 200A and the color cartridge 200B of FIG. 2 are mounted on the carriage 100 in FIG. 1 and 3, a carriage 100 is driven by a driving mechanism including a carriage motor 17 and a carriage belt 16 and reciprocates along the guide rail 14. The carriage 100 includes side walls 103 on both sides and An inner wall 104 is provided. An accommodating portion (recording means accommodating portion) of a head cartridge as recording means is formed between the side wall 103L and the middle wall 104 of the carriage 100, and the head is also located between the side wall 103R and the inner wall 104. A cartridge accommodating portion (recording means accommodating portion) is formed. 1 and 3 show a state where a black cartridge 200A and a three-color cartridge 200B as a permanent head are mounted on the carriage 100. FIG.

  FIG. 4 is a schematic perspective view showing only the carriage 100 unit. In FIG. 4, thick portions are provided on the lower portions of both sides of the inner wall 104 of the carriage 100 and the lower portions of the inner surfaces of both side walls 103, and these thick portions have respective heads as recording means. Positioning protrusions 101 are provided to engage the positioning grooves 202 of the cartridges 200A and 200B. The head cartridges 200A and 200B are provided at relatively lower portions of the side walls 103 and the middle wall 104 of the carriage 100 so that the head cartridges 200A and 200B are guided in the correct insertion direction when the head cartridges 200A and 200B are mounted. A guide groove 105 for guiding the rough guide protrusion 203 is formed. The carriage 100 can be easily introduced and fixed to the connector 120 for making electrical connection by contacting a wiring board (not shown) provided in each head cartridge 200A, 200B and each head cartridge 200A, 200B. Therefore, a head set cam 110 that is pressed downward by a compression spring (head set spring 111) is provided.

  Next, the operation when the head cartridge 200A (also the same as 200B) as recording means is attached to and detached from the carriage 100 will be described. FIG. 5 is a schematic longitudinal sectional view showing a state when the recording means is mounted, FIGS. 6 and 7 are schematic longitudinal sectional views showing a state in the middle of mounting of the recording means, and FIG. 8 shows that the recording head 200A is locked. It is a typical longitudinal cross-sectional view which shows a state when it exists in a state.

  12 is an overall perspective view of the recording apparatus in the state of FIG. 6, and FIG. 10 is an enlarged detailed perspective view of the internal configuration of FIG. FIG. 9 is a perspective view of the portion of FIG. 10 with the recording means removed.

  First, the user sandwiches the cartridge main body 200A and inserts the rough guide projection 203 of the head cartridge 200A into the guide groove 13a of the head guide member 13 in the front direction of the main body. Due to the engagement between the rough guide projection 203 and the guide groove 13a of the head guide member 13, the head cartridge 200A (the same applies to the head cartridge 200B) is guided in the direction of arrow A while maintaining a constant posture. As shown in FIG. 5, the rough guide protrusion 203 of the head cartridge comes into contact with the guide groove 105 on the carriage 100 that is configured to be slightly lower than the guide groove 13 a of the head guide member 13. At this time, since the guide groove 105 of the carriage 100 is configured to be lower than the guide groove 13a of the head guide member 13, the rough guide protrusion 203 does not interfere with or collide with the carriage 100, and the head cartridge 200A is not affected. The wearing operation is not hindered. Further, in this state, the posture of advancement to the carriage is maintained even when the user releases the hand. That is, at this time, the head cartridge 200 </ b> A tends to rotate around the rough guide protrusion 203. Therefore, in order to maintain the posture of the head cartridge 200 </ b> A during the attachment / detachment operation, the rear portion of the head cartridge that is far from the contact surface of the face surface including the ink ejection portion 201 is configured to contact the head guide member 13.

  When the head cartridge 200A is further pushed in in the direction of arrow A, the head cartridge 200A is positioned and fixed in the headset state (FIG. 8) by rotating without any special consciousness. It is configured.

  That is, when the head pressing portion 204 at the top of the head cartridge 200A and the head set cam 110 come into contact with each other, as shown in FIG. 6, the recording head 200A is rotated clockwise according to the shape of the cam surface, and the rough guide projection 203 Enters the direction of arrow A of the carriage 100. When the user further pushes the head cartridge 208 in the direction of arrow A, the head pressing portion 204 is pushed downward by the head set cam 110 as shown in FIG. 7 and the rough guide protrusion 203 is engaged with the guide groove 105 and lowered. Will be guided to. The lateral displacement of the head cartridge 200A (same as 200B) is regulated by the both side walls 103 of the carriage 100 and the middle wall 104, so that the rough guide projection 203 and the guide groove 105 are engaged. The guide function when inserting the recording means (head cartridge) 200A can be sufficiently exhibited.

  When the head cartridge 200A is pushed in the direction of arrow A from the state shown in FIG. 7, the head set cam 110 comes into contact with the head pressing portion 204 by the urging force of the head set spring 111, and the head cartridge 200A is drawn. When the head cartridge 200A is rotated to the fully retracted position by the headset cam 110, the positioning groove 202 abuts against the abutting portion of the positioning projection 101 as shown in FIG. The head cartridge 200 </ b> A is mounted in a stable state on the carriage 100 by the upper abutting portion coming into contact with the engaging portion of the carriage 100. In this mounted state, the electrical connection between the head cartridge 200A and the connector 120 is also completed.

  By detecting the electrical connection state between the head cartridge 200A and the connector 120, the recording apparatus can detect whether or not the head is mounted.

  As described above, a dedicated sensor may be used in addition to the method in which the head cartridge 200A and the connector 120 are electrically connected as described above.

  In the state where the head cartridge 200A of FIG. 8 is fixed, the rough guide projection 203 is located in the widened portion (wide space) of the guide groove 105 and is movable, so that the head cartridge This does not hinder the operation of fixing 200A (200B) at a predetermined position.

  On the other hand, when the head cartridge 200A (200B) is taken out from the carriage 100, the head cartridge body 200A may be pulled out contrary to the above-described insertion.

  That is, first, the head cartridge 200A is pushed down in the direction of arrow C in FIG. When the head cartridge 200A is pushed down in the direction of arrow C, the fixing of the head cartridge 200A (200B) by the headset cam 110 is released, and the state shown in FIG. 7 is obtained. When the head handle convex portion 205 is dragged in the direction of arrow B from the state of FIG. 7, the head cartridge 200A rotates counterclockwise around the positioning groove 202 of the head cartridge 200A and the positioning projection 101 on the carriage 100, and finally. The rough guide projection 203 as shown in FIG. 6 is guided to rotate to a position where it engages with the guide groove 105 of the carriage 100.

  When the head is rotated in the counterclockwise direction when the head 200A is attached / detached, the head cartridge rotates so that the face surface including the ink discharge unit 201 and the cartridge itself do not interfere with each other and cause damage or the like. Sufficient space is formed.

  Subsequently, by dragging the cartridge main body 200A in the direction of arrow B, the rough guide protrusion 203 is pulled out along the guide groove 105 of the carriage 100 toward the front of the main body discharge direction. At this time, when the rough guide projection 203 advances to the tip of the guide groove 105 on the carriage 100, the guide groove 13a of the head guide 13 provided on the front surface of the main body is configured to be higher than the guide groove 105 of the carriage 100. Therefore, the rough guide projection 203 comes into contact with the guide groove portion 13a of the head guide member 13 because of the level difference. At this time, the head cartridge 200A tries to rotate around the rough guide projection 203, but in order to maintain the posture of the head cartridge 200A, the head cartridge 200A is far from the contact surface of the face surface including the ink outlet 201 of the head cartridge 200A. The rear portion is configured to contact the head guide member 13. Thus, the problem that the head cartridge 200A falls can be solved, and an ink jet recording apparatus using the head cartridge 200A as a detachable recording means that is simple and inexpensive and excellent in usability is provided.

  FIG. 13 shows the positional relationship between the guide member 13 and the carriage 100 when the cartridge is mounted. Since the contents to be described here are mainly the positional relationship between the guide member 13 and the carriage 100 in the scanning direction of the carriage 100, a schematic view of the recording apparatus 1 viewed from above is used. When the cartridge is replaced, the carriage 100 is driven and moved by the carriage motor 17 in front of the guide member 13. Here, the guide groove 13a of the guide member 13 and the guide groove 105 of the carriage are set so as to be shifted in the scanning direction by 13GAPC and 13GAPB, respectively. This direction is set so as to overlap with the positioning portion 101 of the carriage 100. Here, as described above, the rough guide projection 203 of the head cartridge 200A is inserted into the guide groove 13a of the head guide member 13 in the front direction of the main body. By engaging the rough guide projection 203 with the guide groove 13a of the head guide member 13, the head cartridge 200A (the same applies to the head cartridge 200B) is guided in the direction of arrow A in FIG.

  For example, when the cartridge on the right side of FIG. 13 is mounted, when it is guided by the carriage 100, it comes into contact with the slope portion of 13TC. At this time, the carriage 100 receives a force that moves in the R direction in the drawing by the inclined surface 13TC. The holding power of the carriage motor 17 is adjusted so that this force is set slightly weaker than the holding force of the position by the carriage motor 17. As a result, the carriage 100 is moved in the L direction. Therefore, the cartridge is always guided along the left guide 105 and positioned without causing a gap in the carriage positioning projection 101.

  Similarly, when the cartridge on the left side of FIG. 13 is mounted, the carriage 100 is moved in the R direction in the drawing to complete the mounting.

  As described above, by shifting the position of the head guide member 13 and the carriage 100 in the scanning direction as 13 GAPC or 13 GAPB, cartridge positioning can be ensured without being affected by the accuracy of parts, tolerances, or variations in the stopping position of the carriage 100. It became possible.

  Even if the pressing force of the head side spring 113 is set so that the pressing force of the head side spring 113 is set slightly stronger than the holding force of the position by the carriage motor 17, the same action occurs.

  According to the carriage 100 and the recording means (head cartridge) 200A (200B) of the ink jet recording apparatus as one embodiment described with reference to FIGS. Therefore, an ink jet recording apparatus provided with a detachable recording means that is easy to use with a simple configuration is provided.

  3 to 10, the case where the two recording units (recording head and head cartridge) 200A and 200B are mounted on the carriage 100 has been described as an example. However, the present invention is not limited to the recording head. It can be freely implemented regardless of the number, and in addition to an inkjet recording apparatus using one recording head, an inkjet recording apparatus for color recording using a plurality of recording heads using different color inks, or the same color The present invention can be similarly applied to an inkjet recording apparatus for gradation recording using a plurality of recording heads that use inks of different concentrations, and further, an inkjet recording apparatus that combines these, and achieves the same effect. To get.

  Furthermore, the present invention uses a replaceable ink jet cartridge (head cartridge) in which the recording means (recording head 200) and the ink reservoir (ink tank) are integrated, and the recording means and the ink reservoir are separated, What is the arrangement configuration of the recording means and the ink storage part, such as a configuration in which the recording means and the ink storage part are separately provided on the carriage, and only the ink storage part is replaced? Can be applied in the same manner, and the same effect can be obtained. The present invention can be applied to an ink jet recording apparatus that uses an ink jet recording head 200 that uses an electromechanical transducer such as a piezo element. In particular, the ink is ejected using thermal energy. In the ink jet recording apparatus using the ink jet recording head 200 of the above method, an excellent effect is brought about. This is because according to such a method, high density and high definition of recording (print) can be achieved.

1 is a schematic perspective view illustrating an overall configuration of an ink jet recording apparatus according to an embodiment of the present invention. FIG. 2 is a schematic perspective view showing a recording head as recording means according to an embodiment of the present invention. FIG. 3 is a schematic perspective view illustrating a state where the recording head of the carriage unit according to the embodiment of the invention is mounted. FIG. 5 is a schematic perspective view illustrating a state before the recording head is mounted on the carriage unit according to the embodiment of the invention. FIG. 2 is a schematic cross-sectional view showing a state at the start of mounting of a recording head according to an embodiment of the present invention. FIG. 5 is a schematic cross-sectional view illustrating a first state during a recording head mounting operation according to an embodiment of the present invention. FIG. 6 is a schematic cross-sectional view showing a second state during the recording head mounting operation according to the embodiment of the invention. FIG. 6 is a schematic cross-sectional view illustrating a state where the recording head is completely mounted according to an embodiment of the present invention. FIG. 3 is a perspective view illustrating a state of a recording head mounting unit according to an embodiment of the invention. FIG. 3 is a perspective view illustrating a state in which the recording head mounting portion is incomplete according to an embodiment of the present invention. 1 is an external perspective view of a recording apparatus according to an embodiment of the present invention. FIG. 2 is an external perspective view of an apparatus showing a recording head replacement according to an embodiment of the present invention. It is a figure which shows the positional relationship of the guide member at the time of cartridge mounting based on one Embodiment of this invention, and a carriage.

Explanation of symbols

1. Recording device body (recording unit body)
2 Access cover 5 Host computer 4 Recording medium (recording sheet, recording paper)
DESCRIPTION OF SYMBOLS 10 Chassis 12 Flexible flat cable 13 Head guide member 13a Head guide member guide groove 14 Guide rail 15 Support rail 16 Carriage belt 17 Carriage motor 20 Paper conveyance part (paper feed part)
21 Conveyance roller (LF roller, paper feed roller)
22 Pinch roller 23 Pinch roller holder 24 Pinch roller spring 25 Pinch roller shaft 26 LF motor (paper feed motor, transport motor)
27 LF belt 28 Code wheel 29 Platen 30 First paper discharge roller 31 Second paper discharge roller 32 First spur train (rotating body)
33 Second spur train (rotating body)
35 LF encoder 36 Maintenance unit (discharge recovery device)
37 Main ASF (automatic paper feeder)
39 Feed roller 40 Separation roller 41 Pressure plate 44 ASF flap 46 ASF motor 55 Guide shaft spring 58 Lift cam shaft 66 PE sensor lever (paper detection lever)
67 PE sensor 68 PE sensor lever spring 70 Paper feed guide (guide member)
DESCRIPTION OF SYMBOLS 100 Carriage 101 Carriage positioning protrusion 103 Carriage outer wall 104 Carriage inner wall 105 Carriage guide groove 110 Headset cam 111 Headset spring 113 Head side spring 120 Connector 200A Recording head (black cartridge)
200B recording head (color cartridge)
201 Nozzle part 202 Positioning groove 203 Rough guide protrusion 204 Head pressing part 205 Head handle a
206 Head handle b
501 MPU
502 Recording Head Control Unit 503 Carriage Motor 504 Paper Feed Motor 505 Access Cover Sensor 506 Interface Unit 507 RAM
508 ROM
509 Motor controller 510 Carriage encoder 511 Display means

Claims (3)

  A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; In the recording apparatus having the cartridge attachment / detachment guide, the recording attachment / detachment guide is provided with a guide portion for guiding the insertion of the recording cartridge, and is configured to be pressed in the positioning direction when the cartridge is inserted into the carriage. An ink jet recording apparatus, wherein the carriage is moved in a scanning direction by an insertion force of the cartridge.   A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; A recording medium having a pressing means for pressing the carriage to a positioning portion provided on the carriage, a cartridge exchange station provided in a scanning range of the carriage, and the cartridge attachment / detachment guide provided on the exchange station. In the apparatus, the recording attachment / detachment guide is provided with a guide portion for guiding the recording cartridge to be inserted, and the holding force in the scanning direction by the stop holding control in the scanning direction generated when the carriage is stopped at the exchange station is pressed. Less than the pressure An ink jet recording apparatus characterized by an insertion force of the cartridge and to move the carriage in the scanning direction.   A carriage capable of scanning, driving means for scanning the carriage, a recording cartridge removable from the carriage, and a positioning portion provided on the carriage for positioning the cartridge and the carriage in the scanning direction; The cartridge replacement station is provided in a scanning range of the carriage, and the cartridge mounting / dismounting guide is provided in the replacement station, wherein the recording mounting / dismounting guide has a guide portion for guiding the insertion of the recording cartridge, An ink jet recording apparatus, wherein a holding force in a scanning direction by stop holding control generated at the carriage exchange station is made weaker than an off pressure of the pressing means.

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