JP2005169745A - Recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording apparatus and a liquid jet apparatus, which are made compact so as to be made easily conveyable. <P>SOLUTION: A storage part 31, wherein a medium holding means 132 for holding a roll-shaped recording medium is to be housed, is constituted in such a manner as to be freely attached to/detached from an apparatus body 32. Since this enables the apparatus body and the storage part to be separated from each other and made compact, the conveyance of the recording apparatus is facilitated. Additionally, the storage part is equipped with a fastening means 133c which can be manually fastened to locking parts 133b and 32b capable of being locked to the apparatus body. Thus, the apparatus body and the storage part can be separated from each other only by hand even if a special instrument is not used. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a recording apparatus and a liquid ejecting apparatus including a storage unit that stores a medium holding unit that holds a roll-shaped recording medium.

  In general, a large-sized ink jet printer, which is one of conventional recording apparatuses, includes a paper supply unit that supplies recording roll paper, for example, a recording medium, a recording unit that records information on the supplied roll paper, and recording A paper discharge unit for discharging the rolled paper. Further, for example, it is possible to record even a relatively large roll paper such as JIS standard A2 size or USC standard 17 inch.

  When using such a large ink jet printer, the user stores the roll paper in the paper feed unit and pulls out the leading end of the roll paper. Then, the leading end portion of the roll paper is passed over the paper feed guide and is sandwiched between the paper feed roller and the driven roller to start the ink jet printer. Then, the ink jet printer records information on the roll paper by ejecting ink droplets from the nozzles of the recording head while rotating the paper feed roller to feed the roll paper onto the platen. Then, the paper discharge roller is rotated to discharge the roll paper to the paper receiver through the paper discharge guide.

JP 2003-146508 A

  The large-sized ink jet printer described above is formed such that a paper feed unit for storing roll paper protrudes from the rear upper part of the printer body. The paper feed unit is formed integrally with the printer body. For this reason, when the ink jet printer needs to be transported for installation work or repair work of the ink jet printer, the paper feed unit protruding from the printer body may interfere with transport.

  SUMMARY An advantage of some aspects of the invention is that it provides a recording apparatus and a liquid ejecting apparatus that are compact and easy to transport.

  In order to achieve the above object, the recording apparatus of the present invention is a recording apparatus including a storage unit that stores a medium holding unit that holds a roll-shaped recording medium, and the storage unit is attached to and detached from the apparatus main body. It is characterized by being freely configured. Thereby, since the apparatus main body and the storage unit can be separated and made compact, the conveyance of the recording apparatus is facilitated. In addition, the storage portion includes a locking portion that can be locked to the apparatus main body and a fastening means that can be manually fastened. Thereby, even if it does not use a special instrument, an apparatus main body and a storage part can be isolate | separated only by manual work.

  In order to achieve the above object, the liquid ejecting apparatus of the present invention is a liquid ejecting apparatus that ejects a liquid onto a medium to be ejected, and is characterized by including each of the storage units. Thus, a liquid ejecting apparatus that exhibits the above-described effects can be provided.

  FIG. 1 is a perspective view of an overall appearance configuration of an ink jet printer that is one of recording apparatuses according to an embodiment of the present invention, as viewed obliquely from the front. The ink jet printer 100 is a desktop large printer that can record on a relatively large size so-called cut paper or roll paper such as JIS standard A2 size or USC standard 17 inch. The housing 101 is covered with a substantially rectangular parallelepiped housing 101 extending in the width direction.

  A rectangular window portion 102 is formed on the upper surface of the housing 101. The window 102 is covered with a transparent or translucent window cover 103. The window cover 103 is attached so as to be rotatable in the direction of the arrow a in the figure around the upper rotation shaft. The user can perform maintenance work of the internal mechanism through the window portion 102 by lifting the window cover 103 and opening the window portion 102.

  On both sides of the front surface of the housing 101, cartridge storage portions 104 into which a plurality of ink cartridges are inserted and removed are formed. Each ink cartridge stores ink of each color for recording. Each cartridge housing portion 104 is covered with a transparent or translucent cartridge cover 105. The cartridge cover 105 is attached so as to be rotatable in the direction of the arrow b shown in the figure around a rotation shaft at the lower part thereof. The user can perform an ink cartridge replacement operation or the like by lightly pressing the cartridge cover 105 to release the locking portion and opening the cartridge storage portion 104.

  An operation unit 110 for instructing a printer operation is disposed on an upper portion of the cartridge housing unit 104 on the right side of the front surface of the housing 101. The operation unit 110 displays buttons 111 such as a power system for turning on / off the power, an operation system for operating a cueing of a paper sheet or operating ink flushing, a processing system for performing image processing, and the like. A liquid crystal panel 112 and the like are provided. The user can operate the button 111 while looking at the liquid crystal panel 112 for confirmation.

  A tank housing portion 106 into which the waste liquid tank 120 is inserted and removed is formed at the lower part of the cartridge housing portion 104 on the right side of the front surface of the housing 101. The waste liquid tank 120 stores waste ink that is discarded when the recording head 162 (see FIG. 5) is cleaned or when the ink cartridge is replaced. By pulling out the waste liquid tank 120, the user can perform a work of discarding the waste ink accumulated inside.

  On the back surface of the housing 101, a paper feeding unit 130 that feeds a roll-shaped paper including the characteristic part of the present invention is disposed so as to protrude rearward from the upper part. A roll paper holder 132 (see FIG. 7) on which a single roll-shaped paper can be set is disposed inside the paper supply unit 130, and a flip-up type opening / closing mechanism is provided on the front surface of the paper supply unit 130. A roll paper cover 131 is attached so as to cover the roll paper holder 132. The user can perform operations such as attaching / removing roll paper by lifting the roll paper cover 131 and opening the paper supply unit 130. Note that the upper surface of the roll paper cover 131 is formed as a paper feed guide surface capable of manually feeding the cut paper.

  Between the front center of the housing 101, that is, between the pair of cartridge storage portions 104, the paper supply / discharge tray 200 for loading the cut paper before recording and the cut paper after recording or roll-shaped paper is inserted and removed. A paper feed / discharge unit 140 is formed. The paper supply / discharge unit 140 is also formed so that thick paper that cannot be bent during conveyance can be manually fed.

  A front portion of the paper supply / discharge tray 200 is inserted into the paper supply / discharge portion 140 and fixed so that the rear portion of the paper supply / discharge tray 200 protrudes. The paper supply / discharge tray 200 is formed in a cassette type, and cut sheets to be fed before recording are stacked and stored therein, and cut sheets or roll-shaped sheets to be discharged after recording are stacked on the upper side. Sheets are stacked and placed. The detailed structure of such a paper supply / discharge tray 200 will be described below with reference to FIGS.

  FIG. 2 is a perspective view of the entire external configuration of the paper feed / discharge tray 200 as viewed obliquely from the front. The paper feed / discharge tray 200 includes a paper feed tray 210 formed in a box shape and a paper discharge tray 230 formed in a lid shape covering the upper surface of the paper feed tray 210. The paper supply / discharge tray 200 is formed to be extendable and retractable in the paper supply / discharge direction, and can be stored compactly when not in use, and corresponds to cut sheets of various sizes when used. It is possible.

  3 and 4 are perspective views showing the paper supply / discharge unit 140 with the paper supply / discharge tray 200 mounted thereon. When the cut sheets are stacked and placed, as shown in FIG. 3, the roll paper guide unit 240 is stored in the upper surface of the paper discharge member 239a, that is, the upper surface of the paper discharge member 239a is flat. As a result, the cut sheet discharged through the sheet discharge roller 155 (see FIG. 5) has a side surface and a bottom surface of the guide portion 145 having an L-shaped cross section and upper surfaces of the sheet discharge members 239a to 239d. Are smoothly stacked and placed on the sheet receiving surface formed by

  Note that a sponge mat 145 a is attached to the bottom surface of the guide portion 145. The sponge mat 145a is configured such that when the second cut sheet is ejected after the first cut sheet is placed, the leading end of the second cut sheet is the first sheet. It has a non-slip function for preventing the cut sheet from sticking out and falling off the sheet receiving surface.

  On the other hand, when stacking roll-shaped sheets, as shown in FIG. 4, on the other long side of the first guide plate 241 of the roll sheet guide 240 stored on the upper surface of the sheet discharge member 239a. The user puts his finger and turns it backward. Then, the second guide plate 242 is pulled by the first guide plate 241, the one end side in the longitudinal direction is lifted, and the other end side in the longitudinal direction is along the groove 239aa formed on the upper surface of the paper discharge member 239a. Slide backwards. Then, the first guide plate 241 is turned until the angle formed by the first guide plate 241 and the second guide plate 242 becomes an acute angle.

  Thus, the second guide plate 242 has a slide-like shape in which one end side in the longitudinal direction is close to the top of the side surface of the guide portion. For this reason, even if the roll-shaped paper discharged through the paper discharge roller is curled, the leading end thereof is not caught in the guide portion side, and the leading end is a slide-like second guide plate. It slides on 242 and is guided to the upper surface side of the paper discharge members 239a to 239d. Therefore, the roll-shaped paper is smoothly stacked and placed on the paper discharge receiving surface formed by the second guide plate 242 and the upper surfaces of the paper discharge members 239a to 239d.

  FIG. 5 is a cross-sectional side view showing an outline of the internal configuration of the ink jet printer 100 of FIG. In the housing 101, a paper supply / discharge unit 140, a transport unit 150, a recording unit 160, and the like are disposed. The paper supply / discharge unit 140 is provided with a hopper 141, a paper supply roller 142, a separation member 143, and the like for feeding cut paper. The hopper 141 is formed in a flat plate shape on which a cut sheet can be placed. One end of the hopper 141 is located in the vicinity of the paper feed roller 142 and the separating member 143 and the other end of the paper feed / discharge tray 200 is mounted. It is disposed so as to be located in the vicinity of the bottom surface of the paper feeding unit 210. The hopper 141 has the other end of the compression spring 144 attached at one end to the bottom surface of the housing 101 on the back surface at one end side, and the one end side pivots around the other end side by the expansion and contraction of the compression spring 144. It is arranged like this.

  The paper feed roller 142 is formed in a D shape with a part of a cross section cut out, and rotates intermittently to frictionally convey the cut paper on the hopper 141. The separation member 143 is formed with a rough upper surface, and when the paper cut by the paper feed roller 142 is double fed, the lower cut paper is frictionally separated from the uppermost cut paper. It has become. Here, the relationship between the cut sheet placed on the hopper 141 and the paper feed roller 142 will be described with reference to FIG.

  FIG. 6 is a diagram illustrating a contact state between the cut sheet placed on the hopper 141 and the paper feed roller 142. FIG. 6A shows a case where the maximum number of cut sheets P is placed on the hopper 141. In this case, when the hopper 141 is raised, the uppermost cut sheet P1 is fed to the paper feed roller. It adjusts so that it may not contact the notch part of 142 but may contact at least the circumference after the circular arc start point 142a.

  FIG. 6B shows a case where the minimum number (one) of cut sheets P1 is placed on the hopper 141. In this case, when the hopper 141 is lifted, the cut sheets P1. Is adjusted so as to come into contact with a point 142b slightly rotated from the arc start point 142a of the paper feed roller 142. The contact point 142b has a circumferential length from the contact point 142b to the arc end point 142c equal to the distance a from the leading edge ps of the paper P1 to the contact point 151a between the sub roller 151 and its driven roller 152a. This is the point.

  By adjusting as described above, when the number of the cut sheets P placed on the hopper 141 is equal to or less than the maximum number, the leading edge ps of the uppermost cut sheet P1 is moved to the sub roller 151 and its driven roller 152a. The cut paper P1 is not released from the paper feed roller 142 until it reaches the contact point 151a, so that the cut paper P1 can be reliably delivered to the sub-roller 151, and a paper feed error can be eliminated.

  The transport unit 150 includes a sub roller 151 for transporting paper and its driven rollers 152a, 152b, and 152c, a paper feed roller 153 and its driven roller 154, a discharge roller 155 and its driven roller 156, and a detection sensor for detecting the paper. 157a, 157b and the like are provided. The sub roller 151 sandwiches the cut sheet together with the driven rollers 152a, 152b, and 152c and reverses it into a U-shape in order to discharge the cut sheet fed from the sheet feeding tray 210 to the sheet discharge tray 230. It is designed to be transported. Further, the sub-roller 151 sandwiches and conveys the roll-shaped paper together with the driven roller 152c in order to eject the roll-shaped paper fed from the paper feeding section 130 to the paper ejection section 230. .

  The paper feed roller 153 sandwiches the cut paper that has been reversely conveyed or the roll-shaped paper that is fed together with the driven roller 154 and feeds it to the platen 163. The paper discharge roller 155 supports the paper passing through the platen 163 alone or sandwiches it together with the driven roller 156 and discharges it onto the paper discharge tray 230. The detection sensor 157a detects the transport amount when the skew of the cut paper that is fed is taken. The detection sensor 157b is configured to detect a conveyance amount when cueing a cut sheet that is reversely conveyed or a roll-shaped sheet that is conveyed.

  The driven roller 156 includes a serrated roller 11 and a roller 12 that are in contact with or separated from the recording surface of the sheet conveyed onto the paper discharge roller 155, and a switching shaft 14 that switches between contact and separation of these rollers 11 and 12. I have. The serrated roller 11 has a saw blade-like protrusion formed on its peripheral surface, and is surely conveyed by biting into the recording surface of the paper and sandwiching the paper with the paper discharge roller 155.

  The roller roller 12 has a smooth peripheral surface, and is surely conveyed by pressing the recording surface of the paper and sandwiching the paper with the paper discharge roller 155. Further, on the peripheral surface of the switching shaft 14, the release roller 13, in which the roller roller 11, the roller roller 12, the roller roller 11, and the roller roller 12 are not disposed, is disposed at a predetermined interval in the circumferential direction. A plurality of sets are arranged at predetermined intervals.

  According to such a driven roller 156, by rotating the switching shaft 14, it is possible to arbitrarily switch between the jagged roller 11 and the roller 12, the jagged roller 11 and the release unit 13, and the roller 12 and the release unit 13. The switching between the jagged roller 11 and the release unit 13 or the roller roller 12 and the release unit 13 is a pseudo contact / separation of the jagged roller 11 or the roller roller 12 with respect to the recording surface of the sheet. Therefore, it is possible to deal with paper having many attributes by the above switching. The follower roller 156 is provided with three kinds of the roller roller 156, the roller roller 12, and the release part 13 one by one. However, the invention is not limited to this. You may make it arrange | position by arbitrary combinations.

  The recording unit 160 includes a carriage 161, a recording head 162, a platen 163, a support rib 164, and the like. The carriage 161 is connected to a carriage belt (not shown). When the carriage belt is actuated by a carriage motor (not shown), the carriage 161 is entrained by the movement of the carriage belt 165 and is guided by the guide shaft to reciprocate on the sheet in the conveyance orthogonal direction. It is like that. Furthermore, the carriage 161 is mounted with a recording head 162 that can eject ink droplets toward a lower sheet.

  The recording head 162 includes, for example, a plurality of black ink recording heads that eject two types of black ink, and a plurality of color inks that respectively eject six ink droplets of yellow, dark yellow, cyan, light cyan, magenta, and light magenta. Recording head. The recording head 162 is provided with a pressure generation chamber and a nozzle opening connected to the pressure generation chamber. The ink is stored in the pressure generation chamber and pressurized at a predetermined pressure to control the recording head 162 from the nozzle opening toward the sheet on the platen 163. Ink droplets of a specified size are ejected.

  The platen 163 supports and guides the paper conveyed from the paper feed roller 153 and the driven roller 154 toward the paper discharge roller 155 and the driven roller 156 on the recording guide surface 163a which is the upper surface thereof, or the support rib 164. It is designed to support and guide you. The recording guide surface 163a of the platen 163 is provided with an ink absorbing material 167 (see FIG. 9) that absorbs ink that is removed from the side edge of the paper during borderless printing. As a result, useless ink can be collected, so that contamination of the paper by useless ink can be prevented. Further, a suction hole 168 (see FIG. 9) for adsorbing the sheet to the recording guide surface 163a of the platen 163 is formed. As a result, the distance between the nozzle forming surface of the recording head 162 and the recording surface of the paper can be kept constant, so that high recording accuracy can be maintained.

  The support rib 164 includes a rib 21 that protrudes or retracts from a slit 163b formed in the recording guide surface 163a of the platen 163, and a switching shaft 22 that switches the protrusion / retraction of the rib 21. The rib 21 is formed in a substantially triangular plate shape, and a corner portion of the arc shape protrudes from the recording guide surface 163a to support the sheet. Both ends of the switching shaft 22 are supported by the side surface 163 c of the platen 163. A plurality of ribs 21 are arranged on the circumferential surface of the switching shaft 22 at predetermined intervals in the axial direction.

  According to such a support rib 164, by rotating the switching shaft 22, in the slit 163 b formed in the recording guide surface 163 a of the platen 163, the arc-shaped corner portion and the flat portion of the rib 21 can be arbitrarily set. You can switch to That is, the rib 21 can be projected by positioning the arc-shaped corner of the rib 21 in the slit 163b formed in the recording guide surface 163a of the platen 163, and the flat portion of the rib 21 is positioned. The rib 21 can be retracted. Therefore, it is possible to deal with paper having many attributes that will be described in detail later by the above switching.

  FIG. 7 is a perspective view showing a detailed configuration of the roll paper holder 132. The roll paper holder 132 includes a roll paper spindle 132a and a pair of roll paper flanges 132b fitted to both ends of the roll paper spindle 132a. The roll paper spindle 132a is inserted into the hollow shaft portion of the roll-shaped paper R. The roll paper flange 132b is fitted into both ends of the hollow shaft portion of the roll-shaped paper R into which the roll paper spindle 132a is inserted.

  Here, since the recording guide surface 163a of the platen 163 is provided with the suction holes 168, it is difficult to dispose the ink absorbing material 167 corresponding to the side edges of the roll paper R of all sizes. For example, the ink absorbing material 167 corresponding to the side end portion of the roll-shaped paper R having an A2 size and an 8-inch size is not provided. Therefore, the roll paper holder 132 includes a disk-like spacer 132c that is fitted into the boss 132ba (see FIG. 8) of one roll paper flange 132b and abuts against the inner side surface 132bb (see FIG. 8).

  When the spacer 132c is used, first, as shown in FIG. 8A, one roll paper flange 132b inserted into the roll paper spindle 132a is pulled out from one end of the roll paper spindle 132a. Then, as shown in FIG. 8B, the spacer 132c is inserted from one end of the roll paper spindle 132a, and the other inserted and fixed to the other end side of the roll paper spindle 132a as shown in FIG. 8C. The roll paper flange 132b is fitted into the boss 132ba and brought into contact with the inner side surface 132bb.

  Then, as shown in FIG. 8D, the other end of the roll paper spindle 132a is inserted and fixed to the other end side of the roll paper spindle 132a by inserting the hollow shaft portion of the roll paper R from one end of the roll paper spindle 132a. The roll paper flange 132b is fitted into the boss 132ba and brought into contact with the spacer 132c. Then, as shown in FIG. 8E, the one rolled paper flange 132b is inserted from one end of the rolled paper spindle 132a and is fitted into the hollow shaft portion of the rolled paper R. As a result, the roll paper R can be rotated together with the roll paper holder 132.

  By attaching such a spacer 132c to the roll paper flange 132b, it is possible to shift the position of the side end portion in contact with one end portion of a roll-shaped paper R of A2 size or 8 inches. As a result, as shown in FIG. 9, the spacers 132c provide the positions P1 and P2 of the side edges when the recording guide surface 163a of the platen 163 does not have the A2 size or 8-inch roll paper R spacers 132c. It can be moved to the positions P11 and P12 of the side end when there is.

  Therefore, since the ink absorbing material 167 corresponding to the side end portion of the roll-shaped paper R of another size can be used, borderless printing can be performed even with the roll-shaped paper R of A2 size or 8 inches. It becomes possible. At this time, the position of the other side end portion of the A2 size or 8-inch size roll-shaped paper R moves from P3 to P13, but is used as it is because it is within the range of the existing ink absorbing material 167. be able to. Further, by removing the spacer 132c from the roll paper flange 132b, it is possible to perform borderless printing on a roll paper R having a size other than A2 size or 8 inches.

  FIG. 10 is a perspective view of the ink jet printer 100 as viewed from the paper feed unit 130 side including the characteristic portions of the present invention. The paper feed unit 130 includes a roll paper unit (storage) having a flip-up-type openable and closable roll paper cover 131, a roll paper holder 132 on which roll-shaped paper can be set, and a support part 133 that supports both ends of the roll paper cover. Part) 31. As shown in FIG. 10A, the roll paper unit 31 is disposed so as to protrude to the upper rear of the back surface of the printer main body (apparatus main body) 32. The roll paper unit 31 can be separated from the printer main body 32 as shown in FIG. As described above, the ink jet printer 100 can be made compact because the roll paper unit 31 is configured to be detachable from the printer main body 32. When the ink jet printer 100 is installed, repaired, or the like. The ink jet printer 100 can be easily transported.

  FIG. 11 is a perspective view showing a detachable structure between the roll paper unit 31 and the printer main body 32. The frame 133a constituting the support portion 133 of the roll paper unit 31 has a hook-like claw (engagement) that can be hooked to a slit (locking portion) 32b provided in the frame 32a constituting the printer main body 32. (Stop part) 133b and a knob screw (fastening means) 133c that can be manually screwed into the female screw 32c provided on the frame 32a. In such a configuration, when removing the roll paper unit 31 from the printer main body 32, the knob screw 133c is removed from the female screw 32c, the frame 133a is lifted along the frame 32a, and the claw 133b is removed from the slit 32b. When the roll paper unit 31 is attached to the printer main body 32, the claw 133b is inserted into the slit 32b, the frame 133a is lowered along the frame 32a, and the knob screw 133c is screwed into the female screw 32c. In this way, the roll paper unit 31 and the printer main body 32 can be easily separated only by manual work without using a special instrument.

  Note that the support 133 of the roll paper unit 31 has a tooth of the torque limiter in order to prevent tooth skipping caused by the reverse rotation of the torque limiter provided at the end of the roll paper spindle 132a and to eliminate paper skew. A contact member that contacts the portion is provided. The reaction force applied to the tooth portion of the torque limiter due to the contact with the contact member is set to be smaller than the weight of the roll paper holder 132 on which the roll paper is set. A positioning cap is press-fitted into the end of the roll paper spindle 132a. When the roll paper spindle 132a is taken out from the support portion 133 of the roll paper unit 31, the roll paper unit is not pulled out. The support portion 133 of 31 is chamfered.

  An operation in the case where recording is performed on a roll-like paper in the ink jet printer 100 in such a configuration will be described. First, the user loads a roll-shaped sheet on the roll sheet holder 132 and loads it into the sheet feeding unit 130. Then, the leading end of the roll-shaped paper is pulled out and abutted against the contact portion between the paper feed roller 153 and the driven roller 154. Next, the control unit of the ink jet printer 100 switches the driven roller 156 and the support rib 164 corresponding to the roll-shaped paper. That is, the driven roller 156 is switched to the release portion 13 and the rib 21 of the support rib 164 is retracted. Then, skewing and cueing of the roll-shaped paper are performed.

  The roll-shaped paper for which skew removal and cueing are completed is nipped by a paper feed roller 153 driven by a paper feed motor (not shown) and its driven roller 154 and conveyed to the recording unit 160. The conveyed roll-shaped paper is sucked and flattened on the platen 163 by a suction pump, and is recorded by a recording head 162 mounted on a carriage 161 scanned by a carriage motor and a timing belt.

  At this time, the control unit supplies each color ink from a total of seven ink cartridges, for example, yellow, light yellow, magenta, light magenta, cyan, light cyan, and black, to the recording head 162, and discharge timing of each color ink and the carriage 161 and The driving of the paper feed roller 153 is controlled to execute highly accurate ink dot control, halftone processing, and the like. Then, the roll-shaped paper on which recording has been completed is cut and discharged to the paper supply / discharge unit 140 by a paper discharge roller 155 driven by a paper feed motor (not shown), and is discharged onto the paper discharge tray 230 of the paper supply / discharge tray 200. Is stacked.

  Any recording apparatus provided with a storage unit can be applied to, for example, a facsimile machine, a copying machine, and the like. In addition to the recording apparatus, the meaning of a liquid ejecting apparatus that ejects a liquid corresponding to its use from a liquid ejecting head onto an ejected medium instead of ink and attaches the liquid to the ejected medium is, for example, a liquid crystal display or the like Color material jet head used for manufacturing color filters, electrode material (conductive paste) jet head used for electrode formation for organic EL display and surface emitting display (FED), bio-organic matter jet head used for biochip manufacturing, precision pipette The present invention can also be applied to an apparatus equipped with a sample ejection head or the like.

1 is a perspective view of an overall appearance configuration of an ink jet printer that is one of recording apparatuses according to an embodiment of the present invention, viewed obliquely from the front. FIG. FIG. 2 is a perspective view of a paper supply / discharge tray of the printer of FIG. 1. It is a perspective view which shows the usage condition of the paper supply / discharge tray of FIG. It is a perspective view which shows another usage pattern of the paper supply / discharge tray of FIG. FIG. 2 is a cross-sectional side view illustrating an outline of an internal configuration of the printer of FIG. 1. It is a figure which shows the contact state of the paper and paper feed roller on a hopper. FIG. 2 is a perspective view illustrating a detailed configuration of a roll paper holder of the printer of FIG. 1. It is a perspective view which shows the mounting procedure of the roll-shaped paper to the roll paper holder of FIG. It is a figure explaining the effect of the spacer of FIG. FIG. 3 is a perspective view of an ink jet printer viewed from a sheet feeding unit side. FIG. 3 is a perspective view showing a detachable structure between a roll paper unit and a printer main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Giza roller, 12 Roller roller, 13 Release part, 14 Switching shaft, 21 Rib, 22 Switching shaft, 31 Roll paper unit, 32 Printer main body, 32b Slit, 100 Inkjet printer, 101 Housing, 104 Cartridge storage part, 105 Cartridge cover, 110 operation unit, 111 button, 112 liquid crystal panel, 130 paper supply unit, 132 roll paper holder, 132a roll paper spindle, 132b roll paper flange, 132c spacer, 133 support unit, 133b claw, 133c knob screw, 140 paper supply / discharge unit, 141 Hopper, 142 Feed roller, 143 Separation member, 150 Conveying unit, 151 Sub roller, 152a, 152b, 152c Driven roller, 153 Paper feed roller, 154 Driven roller, 155 Paper discharge roller, 156 Driven Over La, 160 recording unit, 161 a carriage, 162 recording head, 163 a platen, 163a recording guide surface 164 supporting ribs 167 ink suction member, 168 suction hole, 200 sheet discharge tray, 210 paper feed tray 230 paper discharge tray

Claims (3)

A recording apparatus including a storage unit that stores medium holding means for holding a roll-shaped recording medium,
The recording apparatus, wherein the storage unit is configured to be detachable from the apparatus main body. The recording apparatus according to claim 1, wherein the storage unit includes a locking unit that can be locked to the apparatus main body and a fastening unit that can be manually fastened. A liquid ejecting apparatus that ejects liquid onto a medium to be ejected,
A liquid ejecting apparatus comprising the storage unit according to claim 1.

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