US20120048908A1 - Transport apparatus and recording apparatus - Google Patents
Transport apparatus and recording apparatus Download PDFInfo
- Publication number
- US20120048908A1 US20120048908A1 US13/204,053 US201113204053A US2012048908A1 US 20120048908 A1 US20120048908 A1 US 20120048908A1 US 201113204053 A US201113204053 A US 201113204053A US 2012048908 A1 US2012048908 A1 US 2012048908A1
- Authority
- US
- United States
- Prior art keywords
- transport
- guide
- roller
- recording medium
- continuous paper
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
- B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0054—Handling sheets of differing lengths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2220/00—Function indicators
- B65H2220/03—Function indicators indicating an entity which is measured, estimated, evaluated, calculated or determined but which does not constitute an entity which is adjusted or changed by the control process per se
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
- B65H2404/1441—Roller pairs with relative movement of the rollers to / from each other involving controlled actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/11—Length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/20—Avoiding or preventing undesirable effects
- B65H2601/25—Damages to handled material
- B65H2601/251—Smearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/12—Single-function printing machines, typically table-top machines
Definitions
- the present invention relates to a transport apparatus that transports a recording medium such as, for example, long paper or single sheet paper and a recording apparatus including the same.
- a transport apparatus that transports the recorded recording medium toward an outlet
- JP-A-11-193158 a transport apparatus described in JP-A-11-193158 is configured so as to transport the recording medium recorded by a recording unit at a recording position along a transport path by rotating both rollers constituting a transport roller pair in the state of being pinched therebetween by the transport roller pair that is disposed at a position more on a downstream side than the recording position in the transport path.
- An advantage of some aspects of the invention is to provide a transport apparatus that can suppress the transport load relative to the recording medium passing through the transport path, and a recording apparatus that can suppress a decline in recording quality.
- a transport apparatus that transports a recording medium from an upstream side of a transport path toward a downstream side thereof.
- the transport apparatus includes a transport roller pair which is disposed at a position more on a downstream side than a recording position where the recording medium is recorded in the transport path, at least one of a roller situated at one surface side of the recording medium and a roller situated at the other surface side thereof comes into contact with the recording medium passing through the position and is rotated, whereby the transport roller pair transports the recording medium along the transport path, wherein, when the recording medium passes through between both rollers, in a case where a length dimension along the transport direction of the recording medium is longer than a distance dimension between a position where the transport roller pair is disposed and the recording position more on the upstream side than the position, both rollers do not pinch a long recording medium therebetween.
- the transport roller pair in a case where the recording medium passing through the position, where the transport roller pair is disposed in the middle of the transport path, is a long recording medium, the transport roller pair does not pinch the recording medium therebetween. That is, when the length dimension along the transport direction of the recording medium is longer than the distance dimension between the position where the transport roller pair is disposed and the recording position more on the upstream side than the position, the transport roller pair does not pinch the long recording medium, whereby the transport load added to the recording medium by the transport roller pair is smaller than the case of the pinched state.
- the transport load relative to the recording medium passing through the transport path is suppressed, with the result that, for example, when the long recording medium passes through between both rollers of the transport roller pair, even in a case where the recording is concurrently performed in the recording position of the upstream side part in the recording medium, it is possible to contribute to the suppression of degradation of recording quality.
- the transport roller pair when both rollers enter the non-pinched state, the transport roller pair may be moved in a direction, in which at least one roller intersects an axial direction of the roller, and is separated from the transport path.
- At least one roller when the transport roller pair does not pinch the long recording medium, at least one roller may be moved in a direction, in which at least one roller intersects the axial direction, and is separated from the transport path.
- the configuration of the transport apparatus capable of suppressing the transport load.
- the transport roller pair may include a driving roller which comes into contact with one surface side in the recording medium and is subjected to a driving rotation, and a driven roller which comes into contact with the other surface side in the recording medium to be transported along with the driving rotation of the driving roller and is subjected to a driven rotation, and when the driven roller transports the long recording medium, the transport roller pair is moved in the direction separated from the driving roller.
- the driven roller is easily moved in the direction intersecting the axial direction further than the driving roller, it is possible to easily configure the transport roller pair which does not pinch the long recording medium.
- the transport apparatus capable of suppressing the transport load which is added to the long recording medium to be transported in this manner.
- a roller surface of the driven roller may be formed by a member that has a frictional coefficient higher than that of a roller surface in the driving roller.
- the transport apparatus in the pinched state in which the driven roller pinches the recording medium with the driving roller, it is possible to give the sufficient transport force to the recording medium to be transported.
- the transport apparatus can be compatible with the function of suppressing the transport load to be added to the long recording medium upon transporting the long recording medium and the function of giving another recording medium the necessary transport force upon transporting another recording medium other than the long recording medium.
- a recording apparatus which includes a recording unit that records a recording medium to be transported from an upstream side of a transport path to a downstream side thereof, and the transport apparatus having the above configuration that transports the recording medium recorded by the recording unit.
- FIG. 1 is a schematic front view of a printer in the present embodiment.
- FIG. 2 is a schematic front cross-sectional view of a transport apparatus included in a printer.
- FIG. 3 is a cross-sectional view taken from lines III-III in FIG. 3 .
- FIG. 4A is a schematic front view of a first movement mechanism that shows a case where a first transport roller pair is in a pinched state.
- FIG. 4B is a schematic front view of a first movement mechanism that shows a case where a first transport roller pair is in a non-pinched state.
- FIG. 5A is a schematic side view of a second movement mechanism that shows a case where a second transport roller pair is in a pinched state.
- FIG. 5B is a schematic side view of a second movement mechanism that shows a case where a second transport roller pair is in a non-pinched state.
- FIG. 6A is a schematic side view of a third movement mechanism that shows a case where a third transport roller pair is in a pinched state.
- FIG. 6B is a schematic side view of a third movement mechanism that shows a case where a third transport roller pair is in a non-pinched state.
- FIG. 7 is a schematic diagram taken from lines VII-VII in FIG. 2 .
- FIG. 8A is a schematic cross-sectional view taken from lines VIIIA-VIIIA in FIG. 7 that shows the state in which a flapper is in a long position.
- FIG. 8B is a schematic cross-sectional view taken from lines VIIIB-VIIIB in FIG. 7 that shows the state in which a flapper is in a short position.
- FIG. 9A is a schematic diagram taken from lines VIIIA-VIIIA in FIG. 7 that shows the state in which a flapper is in a long position.
- FIG. 9B is a schematic diagram taken from lines VIIIB-VIIIB in FIG. 7 that shows the state in which a flapper is in a short position.
- FIG. 10 is a schematic front cross-sectional view of a transport apparatus in a case of transporting cut paper.
- FIG. 11 is a schematic front cross-sectional view of a transport apparatus in a case of transporting continuous paper.
- an embodiment will be described in which the invention is embodiment to an ink jet type printer (herein, also referred to as a “printer”), which is a sort of a recording apparatus, and a transport apparatus included in the printer, based on FIGS. 1 to 11 .
- a “front and rear direction”, an “up and down direction”, and a “left and right direction” refer to the “front and rear direction”, the “up and down direction”, and the “left and right direction” shown by arrows in each drawing, unless otherwise mentioned.
- the “front and rear direction” in this case corresponds to a width direction intersecting a transport direction of a recording medium
- the “up and down direction” corresponds to a vertical direction
- a direction facing from the right side to the left side corresponds to the transport direction of the recording medium.
- a printer 11 includes a main body case 12 forming an approximately rectangular shape.
- an unwinding portion 13 is provided which unwinds the long continuous paper S.
- a winding shaft 14 extended in a width direction (the front and rear direction) perpendicular to the transport direction of the continuous paper S is rotatably provided.
- the continuous paper S which is an example of the long recording medium, is supported so as to be rotatable integrally with the winding shaft 14 in the state of being wound in a roll shape in advance. That is, the continuous paper S is unwound from the winding shaft 14 by the rotation of the winding shaft 14 and is transported toward the downstream side (the left side) of the transport direction.
- a relay roller 15 extending in the width direction (the front and rear direction) of the continuous paper S in a manner parallel to the winding shaft 14 is rotatably disposed. Moreover, by winding the continuous paper S, which is unwound from the winding shaft 14 , around the relay roller 15 from the right lower portion, the continuous paper S is horizontally transported toward the downstream side (the left side) of the transport direction.
- a rectangular support member 16 capable of supporting the continuous paper S to be transported is disposed.
- a support surface 16 a which is an upper surface of the support member 16 , is disposed so as to have the same height as a top of an outer peripheral surface in the relay roller 15 . For this reason, the continuous paper S, in which the transport direction is converted into the horizontal left direction by the relay roller 15 , is transported to the left side, which is the downstream side of the transport direction, while coming into sliding-contact with the support surface 16 a of the support member 16 .
- a recording portion 17 which records the continuous paper S so as to be transported.
- the recording portion 17 includes a carriage 18 which can reciprocate in a main scanning direction intersecting the transport direction of the continuous paper S by a driving unit (not shown), and a recording head 19 as an example of a recording unit supported on the lower surface of the carriage 18 .
- the lower surface of the recording head 19 is a horizontal nozzle forming surface through which a plurality of nozzles (not shown) ejecting ink is opened.
- the recording head 19 performs the recording by ejecting ink to the continuous paper S to be transported to the downstream side (the left side) of the transport direction while sliding on the support surface 16 a of the support member 16 .
- the position, where the recording head 19 is disposed is a recording position where the continuous paper (the recording medium) S is recorded.
- a roller pair 20 including a driving roller and a driven roller is disposed.
- the driven roller is subjected to the driven rotation along with the movement of the continuous paper S to the downstream side (the left side) of the transport direction based on the driving rotation of the driving roller, whereby the roller pair 20 transports the continuous paper S to the downstream side (the left side) of the transport direction while pinching the continuous paper S between both rollers.
- a cutter 21 is disposed which is capable of cutting the continuous paper S over the width direction (the front and rear direction) intersecting the transport direction.
- the cutter 21 cuts the long continuous paper S into a cut paper CS in which the length side along the transport direction is a predetermined length.
- the continuous paper S is transported to the downstream side (the left side) of the transport direction one by one whenever the continuous paper S is cut.
- a curl correction portion 22 which corrects (decurls) the curl (winding) of the cut paper CS formed by the cutting of the continuous paper S by the cutter 21 .
- the curl correction portion 22 includes an upstream side roller 23 which comes into contact with one surface side (the lower surface side in FIG. 1 ) of the cut paper CS, a downstream side roller 24 which comes into contact with one surface side of the cut paper CS in the downstream side of the transport direction further than the upstream side roller 23 , and a decurl roller 25 which comes into contact with the other surface side (the upper surface side in FIG.
- the decurl roller 25 corrects the curl of the cut paper CS by pinching the cut paper CS between the decurl roller 25 and the downstream side roller 24 .
- the curl correction portion 22 performs the correction of the curl.
- the curl correction portion 22 does not perform the correction of the curl.
- a transport port (not shown) for transporting the continuous paper S (specifically, the end portion of the downstream side of the transport direction) and the cut paper CS from the inner portion of the main body case 12 to the outer portion of the main body case 12 is opened and formed.
- a transport apparatus 27 is provided which transports so as to discharge the continuous paper S and the cut paper CS, which is transported from the inner portion of the main body case 12 through the transport port, to the outer portion of the main body case 12 .
- the transport apparatus 27 is configured so that the entire apparatus of the unit configuration can be attached to and detached from the main body case 12 .
- the transport apparatus 27 is configured so that the whole apparatuses of the unit configuration can be attached to or detached from the main body case 12 .
- the transport apparatus 27 transports the continuous paper S and the cut paper CS by the different transport paths, respectively, and discharges the paper from the respective different outlets.
- the transport apparatus 27 includes a case 31 having an inner portion of a hollow shape.
- a case 31 having an inner portion of a hollow shape.
- an inlet 32 for carrying the continuous paper S or the cut paper CS transported from the main body case 12 side via the roller pair 20 and the curl correction portion 22 into the case 31 is opened and formed.
- a long outlet 33 for discharging the long cut paper CS or the continuous paper S from the inner portion of the case 31 to the outer portion of the case 31 is opened and formed.
- a short outlet 34 for discharging the short cut paper CS from the inner portion of the case 31 to the outer portion of the case 31 is opened and formed.
- an induction portion 35 which leads the continuous paper S and the cut paper CS into the case 31 through the transport port of the main body case 12 and the inlet 32 of the case 31 , and a reversal transport portion 36 for transporting the long outlet 33 of the upper position while reversing the continuous paper S led by the induction portion 35 are provided. Furthermore, in the case 31 , a transport portion 136 for transporting the cut paper CS led by the induction portion 35 with the recorded surface facing upward to the short outlet 34 of the left sloped upper position is provided.
- the introduction portion 35 includes a first fixing introduction guide 37 and a second fixing introduction guide 38 of an approximately rectangular plate shape fixed to the case 31 .
- the first fixing introduction guide 37 is sloped from a bottom surface 31 c side of the case 31 toward the left upper part (in other words, so as to rise toward the downstream side of the transport direction).
- the second fixing introduction guide 38 is disposed vertically upward the first fixing introduction guide 37 and is gently sloped toward the left upper part.
- the upper surface of the first fixing introduction guide 37 and the lower surface of the second fixing introduction guide 38 function as transport path surfaces 37 a and 38 a transporting the cut paper CS or the continuous paper S, whereby the introduction path is formed between the first fixing introduction guide 37 and the second fixing introduction guide 38 .
- the reversal transport portion 36 includes a reversal path forming member 39 which forms a reversal path leading the long cut paper CS or the continuous paper S to the long outlet 33 while reversing the same, and first to third transport roller pairs 41 to 43 which give the transport force to the long cut paper CS or the continuous paper S to be transported in the transport path toward the long outlet 33 .
- the reversal path forming member 39 includes a first fixing reversal guide 44 and a second fixing reversal guide 45 forming an approximate arc shape when viewed from the cross-section fixed to the case 31 .
- the second fixing reversal guide 45 is disposed so as to face the surface (the left side surface in FIG. 2 ) of the outer peripheral side in the second fixing reversal guide 45 between the surface (the right side surface in FIG. 2 ) of the inner peripheral side of the first fixing reversal guide 44 in the position becoming the inner peripheral side of the first fixing reversal guide 44 at intervals slightly wider than the thickness size of the cut paper CS and the continuous paper S.
- the right side surface of the first fixing reversal guide 44 and the left side surface of the second fixing reversal guide 45 function as the transport path surfaces 44 a and 45 a transporting the cut paper CS or the continuous paper S, whereby a reversal path curved toward the left side is formed between the first fixing reversal guide 44 and the second fixing reversal guide 45 .
- the first fixing reversal guide 44 is configured so that the length of the upstream side of the transport direction is shorter than the length of the upstream side of the transport direction in the second fixing reversal guide 45 . That is, in the transport direction along the curved reversal path, in the first fixing reversal guide 44 , length of the upstream side of the transport direction is formed to be short so that the end portion of the upstream side of the transport direction is situated at the downstream side of the transport direction further than the end portion of the upstream side of the transport direction in the second fixing reversal guide 45 .
- the first to third transport roller pairs 41 to 43 are disposed in the order of the first transport roller pair 41 , the second transport roller pair 42 , and the third transport roller pair 43 along the transport direction of the long cut paper CS or the continuous paper S facing from the upstream side of the reversal path toward the downstream side (from the lower side to the upper side in FIG. 2 ).
- the first transport roller pair 41 is disposed in the position of the upstream end (that is, the end portion of the downstream side of the transport direction in the introduction portion 35 ) of the reversal path formed by the reversal path forming member 39 .
- the third transport roller pair 43 is disposed in the position of the downstream side (that is, the left side of the long outlet 33 ) of the reversal path.
- the second transport roller pair 42 is disposed in the position of the approximate center (that is, between the first and third transport roller pairs 41 and 43 that is the left sides of the first and third transport roller pairs 41 and 43 ) of the reversal path.
- the long cut paper CS or the continuous paper S transported to the reversal transport portion 36 is transported from the upstream side toward the downstream side (that is, from the lower side to the upper side in FIG. 2 ) on the reversal path formed between the first fixing reversal guide 44 and the second fixing reversal guide 45 by the first to third transport roller pairs 41 to 43 .
- the long cut paper CS or the continuous paper S is discharged from the long outlet 33 toward the upper surface 12 b of the main body case 12 in the state in which the recorded surface faces downward.
- a long transport path for transporting the long cut paper CS or the continuous paper S is formed by the introduction path and the reversal path.
- the transport portion 136 includes a first fixing transport guide 144 and a second fixing transport guide 145 of an approximately rectangular plate shape fixed to the case 31 .
- the first fixing transport guide 144 is disposed so as to be approximately horizontal from the left side of the first fixing reversal guide 44 toward the short outlet 34 in such a manner that the end portion of the upstream side of the transport direction is close to the end portion of the upstream side of the transport direction of the first fixing reversal guide 44 in the reversal transport portion 36 .
- the second fixing transport guide 145 is disposed in the lower portion of the vertical direction of the first fixing transport guide 144 and is gently sloped to the left upper side from the left side of the first transport roller pair 41 toward the short outlet 34 in such a manner that the end portion of the upstream side of the transport direction is close to the first transport roller pair 41 .
- the lower surface of the first fixing transport guide 144 and the upper surface of the second fixing transport guide 145 function as the transport path surface that transports the relatively short cut paper CS, whereby a short transport path is formed which transports the short cut paper CS between the first fixing transport guide 144 and the second fixing transport guide 145 .
- the cut paper CS transported through the introduction path of the introduction portion 35 passes through the first transport roller pair 41 , and then is transported from the upstream side toward the downstream side (that is, from the left side to the left side in FIG. 2 ) on the transport path formed between the first fixing transport guide 144 and the second fixing transport guide 145 .
- the short cut paper CS is discharged from the short outlet 34 to the outside of the transport apparatus 27 in the state in which the recorded surface faces upward.
- a flapper 46 is disposed in the position between the end portions of the upstream side of the transport direction of the first fixing reversal guide 44 and the first fixing transport guide 144 and the first transport roller pair 41 . That is, the flapper 46 is oscillated (displaced) in that position, thereby switching over the path portion becoming the downstream side of the transport path further that that position between the long transport path for discharging the long cut paper CS or the continuous paper S and the short transport path for discharging the short cut paper CS.
- first to third transport roller pairs 41 to 43 will be described.
- the configuration of the first transport roller pair 41 will be described as an example.
- FIG. 3 used in the description of the first transport roller pair 41 the cross-sections of the first fixing introduction guide 37 and the second fixing introduction guide 38 are omitted.
- the first transport roller pair 41 includes a driving shaft 41 a which is extended in a width direction (the front and rear direction) intersecting the transport direction of the continuous paper S and the cut paper CS, and a plurality (in the present embodiment, six) of driving rollers 41 b which is integrally rotatably supported on the driving shaft 41 a at intervals in the axial direction.
- the driving roller 41 b is formed by, for example, a metallic material or the like having a relatively low frictional coefficient in a cylindrical shape.
- the driving shaft 41 a is connected to an output shaft of the transport motor 47 so that the driving can be transmitted.
- the first transport roller pair 41 includes a plurality (in the present embodiment, six) of driven rollers 41 d which is rotatably supported on the rotation shaft 41 c extending in the front and rear direction at intervals in the axial direction.
- the driven roller 41 d is formed by, for example, a hard rubber or the like having a relatively high frictional coefficient in a cylindrical shape.
- the plurality of driving rollers 41 b and the plurality of driven rollers 41 d in the first transport roller pair 41 are disposed so as to face the continuous paper S and the cut paper CS interposed therebetween in the axial direction of the driving shaft 41 a and the rotation shaft 41 c .
- the driven roller 41 d is subjected to the driven rotation along with the driving rotation of the driving roller 41 b in the state of interposing the continuous paper S and the cut paper CS by the driving roller 41 b and the driven roller 41 d , thereby transporting the continuous paper S and the cut paper CS. Furthermore, as shown in FIG.
- the first transport roller pair 41 is disposed so that the driving roller 41 b is situated at the relatively upper side (that is, the second fixing reversal guide 45 side) in the upstream end of the transport path and the driven roller 41 d is situated at the relatively lower side (that is, the flapper 46 side).
- the second transport roller pair 42 includes a driving roller 42 b formed of a metallic material having a low frictional coefficient supported on the driving shaft 42 a , and a driven roller 42 d formed of a hard rubber having a high frictional coefficient supported on the rotation shaft 42 c .
- the second transport roller pair 42 is disposed so that the driving roller 42 b is situated at the left side (that is, the first fixing reversal guide 44 side) of the horizontal direction and the driven roller 42 d is situated at the right side (that is, the second fixing reversal guide side 45 side) of the horizontal direction.
- the third transport roller pair 43 includes a driving roller 43 b formed of a metallic material having a low frictional coefficient supported on the driving shaft 43 a , and a driven roller 43 d formed of a hard rubber having a high frictional coefficient supported on the rotation shaft 43 c .
- the third transport roller pair 43 is disposed so that the driving roller 43 b is situated at the lower side (that is, the second fixing reversal guide 45 side) of the vertical direction and the driven roller 43 d is situated at the upper side (that is, the first fixing reversal guide 44 side) of the vertical direction.
- the frictional coefficients of the respective driving rollers 41 b to 43 b in the first to third transport roller pairs 41 to 43 are all the same value (as an example, ⁇ 1 ). Furthermore, the frictional coefficients of the respective driven rollers 41 d to 43 d in the first to third transport roller pairs 41 to 43 are all the same value (as an example, ⁇ 2 ). Moreover, the frictional coefficients ( ⁇ 1 ) of the driving rollers 41 b to 43 b are smaller than the frictional coefficients ( ⁇ 2 ) of the driven rollers 41 d to 43 d ( ⁇ 1 ⁇ 2 ).
- first to third transport roller pairs 41 to 43 include first to third movement mechanisms 48 to 50 for moving the driven rollers 41 d to 43 d in a direction of approaching and being separated from the counterpart driving rollers 41 b to 43 b . That is, the first to third movement mechanisms 48 to 50 move the driven rollers 41 d to 43 d between the pinched position, where the driven rollers come close to the counterpart driving rollers 41 b to 43 b and pinch the continuous paper S and the cut paper CS, and a separated position where the driven rollers are separated from the counterpart driving rollers 41 b to 43 b and do not pinch the continuous paper S and the cut paper CS.
- the first movement mechanism 48 in the first transport roller pair 41 is provided at one end side (the right end side in FIG. 3 ) of the rotation shaft 41 c .
- the first movement mechanism 48 includes a plate-shaped first plate 51 formed in an approximately L shape when viewed from the front, and a plate-shaped first cam member 52 which comes into contact with the first plate 51 .
- the first cam member 52 is connected to the output shaft of the first cam motor 53 driving and rotating the first cam member 52 in a power-transmissible manner. That is, the first cam member 52 is rotated around the rotation shaft 52 a along with the driving of the first cam motor 53 .
- the first plate 51 includes a horizontal portion 51 a extending in the left and right direction, and a vertical portion 51 b extending from the left end side of the horizontal portion 51 a toward the upper side of the vertical direction.
- the rotation shaft 41 c is fixed to the right end side of the horizontal portion 51 a .
- a flat pate-shaped convex portion 51 c is formed which is protruded from the right end of the vertical portion 51 b toward the front side (that is, the front side of the vertical direction to the first plate 51 ).
- the outer peripheral surface of the first cam member 52 comes into contact with the convex portion 51 c from the left side.
- the rotation shaft 41 c and the driven roller 41 d in the first transport roller pair 41 is moved so that the outer peripheral surface as an example of the driven roller 41 d is situated at the lower side further than the transport path surface 37 a of the first fixing introduction guide 37 (see FIG. 11 ).
- the first cam motor 53 is driven from the state shown in FIG. 4B in the backward direction
- the first cam member 52 is rotated around the rotation shaft 52 a in the counterclockwise direction shown in FIG. 4B by about 90°.
- the first plate 51 is rotated around the rotation shaft 51 d in the counterclockwise direction in FIG. 4B and returns to the position shown in FIG. 4A
- the rotation shaft 41 c and the driven roller 41 d in the first transport roller pair 41 are moved to the right upper side according to the rotation of the first plate 51 and return to the position shown in FIG. 4A .
- the second movement mechanism 49 in the second transport roller pair 42 is provided at one end side of the rotation shaft 42 c .
- the second movement mechanism 49 includes a second plate 54 having an approximate L shape when viewed from the front, and a second cam member 55 which comes into contact with the second plate 54 .
- the second cam member 55 is connected to the output shaft of the first cam motor 53 in the power-transmissible manner. That is, the second cam member 55 is rotated around the rotation shaft 55 a along with the driving of the first cam motor 53 .
- the second plate 54 includes a horizontal portion 54 a extending in the left and right direction, and a vertical portion 54 b extending from the left end side of the horizontal portion 54 a toward the upper side of the vertical direction.
- a flat plate-shaped convex portion 54 c is formed which is protruded from the lower end of the horizontal portion 54 a toward the front side (that is, the front side of the vertical direction to the second plate 54 ).
- the rotation shaft 42 c is fixed to the upper end side of the vertical portion 54 b .
- the outer peripheral surface of the second cam member 55 comes into contact with the convex portion 54 c from the upper side.
- the rotation shaft 42 c and the driven roller 42 d in the second transport roller pair 42 is moved so that the outer peripheral surface of the driven roller 42 d is situated more at the right side than the transport path surface 45 a of the second fixing reversal guide 45 (see FIG. 11 ).
- the second cam member 55 is rotated around the rotation shaft 55 a in the counterclockwise direction shown in FIG. 5B by about 90°. Then, the second plate 54 is rotated around the rotation shaft 54 d in the counterclockwise direction in FIG. 5B and returns to the position shown in FIG. 5A , and the rotation shaft 42 c and the driven roller 42 d in the second transport roller pair 42 are moved to the left upper side according to the rotation of the second plate 54 and return to the position shown in FIG. 5A .
- the third movement mechanism 50 in the third transport roller pair 43 is provided at one end side of the rotation shaft 43 c .
- the third movement mechanism 50 in the third transport roller pair 43 includes a third plate 56 having an approximate L shape when viewed from the front, and a third cam member 57 which comes into contact with the third plate 56 .
- the third cam member 57 is connected to the output shaft of the first cam motor 53 in the power-transmissible manner. That is, the third cam member 57 is rotated around the rotation shaft 57 a along with the driving of the first cam motor 53 .
- the third plate 56 includes a horizontal portion 56 a extending toward the right lower portion in the left and right direction, and a vertical portion 56 b extending from the left end side of the horizontal portion 51 a toward the left lower portion.
- the rotation shaft 43 c is fixed to the right end side of the horizontal portion 56 a .
- a flat pate-shaped convex portion 56 c is formed which is protruded from the right end of the vertical portion 56 b toward the front side (that is, the front side of the vertical direction to the third plate 56 ).
- the outer peripheral surface of the third cam member 57 comes into contact with the convex portion 56 c from the upper side.
- the rotation shaft 43 c and the driven roller 43 d in the third transport roller pair 43 is moved so that the outer peripheral surface of the driven roller 43 d is situated at the upper side further than the transport path surface 44 a of the first fixing reversal guide 44 (see FIG. 11 ).
- the third cam member 57 is rotated around the rotation shaft 57 a in the clockwise direction shown in FIG. 6B by about 90°. Then, the third plate 56 is rotated around the rotation shaft 56 d in the clockwise direction in FIG. 6B and returns to the position shown in FIG. 6A , and the rotation shaft 43 c and the driven roller 43 d in the third transport roller pair 43 are moved to the lower side according to the rotation of the third plate 56 and return to the position shown in FIG. 6A .
- first and second fixing introduction guides 37 and 38 in the introduction portion 35 will be described based on FIGS. 7 , 8 A and 8 B.
- the second fixing introduction guide 38 situated at the upper side of the first fixing introduction guide 37 and the second fixing reversal guide 45 situated at the upper side of the first fixing reversal guide 44 are shown by imaginary lines of dot and dash lines, respectively.
- rectangular concave portions 37 b and 38 b along the transport direction (the left and right direction) of the continuous paper S and the cut paper CS are notched in a plurality of positions at intervals in the width direction of the continuous paper S and the cut paper CS so that the end portion forms the teeth of a comb.
- the concave portions 37 b and 38 b of the same numbers (in the present embodiment, six) as those of the driving roller 41 b and the driven roller 41 d are formed.
- a plurality of rectangular convex portions 37 c and 38 c is formed toward the downstream side of the transport direction in a plurality (in the present embodiment, seven) of positions avoiding the region where the driving roller 41 b and the driven roller 41 d are disposed in the width direction of the continuous paper S and the cut paper CS.
- the convex portion 37 c in the first fixing introduction guide 37 is extended to the upper position of the vertical direction of the rotation shaft 41 c so as to overlap with the driven roller 41 d of the first transport roller pair 41 in the transport direction (the left and right direction). Furthermore, the convex portion 38 c in the second fixing introduction guide 38 is extended to the lower position of the vertical direction of the driving shaft 41 a so as to overlap with the driving roller 41 b of the first transport roller pair 41 in the transport direction (the left and right direction).
- the flapper 46 which is an example of a path switch-over member switching over the transport path of the continuous paper S and the cut paper CS, will be described based on FIGS. 7 and 8A and 8 B.
- the flapper 46 includes a first guide 61 of an approximately rectangular plate shape when viewed from the plane, and a second guide 62 of an approximately rectangular plate shape when viewed from the plane disposed so as to be overlap with the upper part of the vertical direction of the first guide 61 .
- the length in the width direction (the front and rear direction) in the first guide 61 intersecting the transport direction of the continuous paper S and the cut paper CS is shorter than the length of the width direction in the second guide 62 .
- the first guide 61 is formed so that the length along the transport direction (the left and right direction) of the continuous paper S and the cut paper CS in the first guide 61 is greater than the length of the transport direction (the left and right direction) in the second guide 62 . That is, the end portion of the downstream side of the transport direction of the first guide 61 is extended toward the downstream side of the transport direction (toward the left side) further than the end portion of the downstream side of the transport direction of the second guide 62 .
- the end portion of the upstream side of the transport direction comes into contact with the end portion of the upstream side of the transport direction in the first guide 61 in the state in which the tip thereof is aligned. Furthermore, the second guide 62 is disposed with respect to the first guide 61 so as to become a position state in which a space portion AS is formed between the end portion of the downstream side of the transport direction in the second guide 62 and the end portion of the downstream side of the transport direction in the first guide 61 .
- the second guide 62 is disposed so as to sloped upward to the first guide 61 so that, as the second guide 62 goes toward the downstream side of the transport direction, the gap between the second guide 62 and the first guide 61 , that is, the space portion AS formed between the second guide 62 and the first guide 61 is increased. Moreover, the respective end portions of the upstream side of the transport direction in the first fixing reversal guide 44 and the first fixing transport guide 144 are inserted and positioned in the space portion AS formed between the first guide 61 and the second guide 62 .
- the end portion of the downstream side of the transport direction in the second guide 62 is disposed so as to overlap in the thickness direction of the continuous paper S to be transported along the transport path from the upper side by being situated at the upper side of the vertical direction with respect to the end portion of the upstream side of the transport direction in the first fixing reversal guide 44 . Furthermore, the end portion of the downstream side of the transport direction in the first guide 61 is disposed so as to overlap in the thickness direction of the cut paper CS to be transported along the transport path from the lower side by being situated at the lower side of the vertical direction with respect to the end portion of the upstream side of the transport direction in the first fixing reversal guide 44 .
- rectangular concave portions 61 a and 62 a along the transport direction (the left and right direction) of the continuous paper S and the cut paper CS are notched in a plurality of positions at intervals in the width direction of the continuous paper S and the cut paper CS so that the end portions form the teeth of a comb.
- the concave portions 61 a and 62 a of the same numbers (in the present embodiment, six) as those of the driving roller 41 b and the driven roller 41 d are formed, respectively.
- a plurality of rectangular convex portions 61 b and 62 b is formed toward the upstream side of the transport direction in a plurality (in the present embodiment, seven) of positions avoiding the region where the driving roller 41 b and the driven roller 41 d are disposed in the width direction of the continuous paper S and the cut paper CS.
- the convex portions 61 b and 62 b is extended to the position close to the rotation shaft 41 c so as to overlap with the driven roller 41 d of the first transport roller pair 41 in the transport direction (the left and right direction).
- the respective end portions of the downstream side of the transport direction in the first guide 61 and the second guide 62 are formed so as to be extended in a linear shape along the width direction (the left and right direction) intersecting the transport direction of the continuous paper S and the cut paper CS.
- the second guide 62 is supported on an upper end of an arm 63 formed in an approximately L shape when viewed from the front which is bent toward the left side in the position of the downstream side of the transport direction of the second guide 62 .
- the respective one end sides of the two shafts 64 a and 64 b protruded and extended in the vertical direction to the arm 63 are fixed so as to be the position where the shaft 64 a is separated from the bent portion of the arm 63 further than the shaft 64 b .
- an oscillation mechanism 65 for oscillating the flapper 46 is provided in the other end sides of the two shafts 64 a and 64 b .
- the oscillation mechanism 65 oscillates the flapper 46 between the long position where the upper surface of the second guide 62 is lower than the transport path surface (the upper surface) 37 a of the first fixing introduction guide 37 of the introduction portion 35 as shown in FIG. 8A and the short position where the lower surface of the first guide surface 61 is higher than the transport path surface 38 a (the lower surface) of the second fixing introduction guide 38 of the introduction portion 35 as shown in FIG. 8B .
- the oscillation mechanism 65 includes a plate 66 formed in a plate shape, and a cam member 67 coming into contact with the plate 66 . Furthermore, the cam member 67 is connected to the output shaft of the second cam motor 68 driving and rotating the cam member 67 in the power transmissible manner. That is, the cam member 67 is rotated around the rotation shaft 67 a along with the driving of the second cam motor.
- the other end side of the shaft 64 b with one end side fixed to the arm 63 is rotatably supported. Furthermore, in the left end of the plate 66 , similarly, the other side of the shaft 64 a with the one end side fixed to the arm 63 is fixed. Furthermore, more to the right side than the bent portion by which the shaft 64 b is supported in the plate 66 , a flat plate-shaped convex portion 66 a is protruded from the upper end toward the rear side (that is, the rear side of the vertical direction to the plate 66 ). Moreover, the outer periphery surface of the cam member 67 comes into contact with the convex portion 66 a from the lower side.
- the end portion of the upstream side of the transport direction of the flapper 46 situated at the short position is situated at the upper part of the vertical direction further than the end portion of the downstream side of the transport direction of the second fixing introduction guide 38 .
- the flapper 46 blocks the inlet to the reversal path in the upstream side of the transport direction of the reversal transport portion 36 (see FIG. 10 ).
- the flapper 46 blocks the inlet to the transport path in the upstream side of the transport direction of the transport portion 136 (see FIG. 11 ).
- the second cam motor 68 of the transport apparatus 27 is driven for the forward rotation based on the selected information. Then, the flapper 46 in the transport apparatus 27 is oscillated (displaced) from the long position which is also the standby position to the short position (see FIG. 8B ) which is also the oscillation position. In addition, the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are still situated at the pinched position. Moreover, the continuous paper S is unwound from the unwinding portion 13 and is transported from the upstream side of the transport direction to the downstream side. Next, when the continuous paper S passes through the lower portion of the recording head 19 in the recording portion 17 , ink is ejected from the recording head 19 to the continuous paper S, whereby the surface of the continuous paper S is recorded.
- the continuous paper S with the ink attached thereto is transported to the further downstream side and passes through the lower portion of the cutter 21 , the continuous paper S is cut into the short cut paper CS by the cutter 21 .
- the curl of the short cut paper CS is corrected (decurled) by being provided with the pinching force from the decurl roller 25 .
- the cut paper CS is transported to the transport apparatus 27 .
- the short cut paper CS in which the curl is corrected and which is transported into the transport apparatus 27 , is transported to the first transport roller pair 41 while coming into sliding-contact with the transport path surface 37 a of the first fixing introduction guide 37 in the introduction portion 35 .
- the driven roller 41 d of the first transport roller pair 41 is situated at the pinched position.
- the driven roller 41 d is subjected to the driven rotation, whereby the transport force from the first transport roller pair 41 is given to the continuous paper S. Moreover, the cut paper CS is further transported to the downstream side.
- the flapper 46 When the relatively short cut paper CS is transported, since the flapper 46 is situated at the short position which is also the oscillation position, the inlet to the reversal path in the reversal transport portion 36 is blocked by the flapper 46 in the position of the upstream side of the transport direction. For that reason, it is suppressed that the short cut paper CS passed through the first transport roller pair 41 is brought into the reversal path of the reversal transport portion 36 by the flapper 46 . Moreover, the short cut paper CS is transported to the left side while the recorded surface comes into sliding-contact with the lower surface of the first guide 61 in the flapper 46 . That is, the lower surface of the first guide 61 is the transport path surface through which the cut paper CS is transported.
- the short cut paper CS sliding on the lower surface of the first guide 61 is transported while the recorded surface is pressed against the lower surface of the first guide 61 by the transport force given from the first transport roller pair 41 . For that reason, force is applied from the end portion of the downstream side of the transport direction in the first guide 61 to the recorded surface of the short cut paper CS.
- the end portion of the downstream side of the transport direction in the first guide 61 is formed in a comb shape, there is a concern that the recording performed on the surface of the cut paper CS is disturbed by the comb-shaped end portion, and a sliding contact trace of the comb-shaped end portion is formed on the surface of the cut paper CS.
- the end portion of the downstream side of the transport direction in the first guide 61 is formed so as to be extended in the linear shape along the width direction of the cut paper CS. For that reason, the force from the end portion of the downstream side of the transport direction in the first guide 61 is uniformly applied to the cut paper CS passing through the end portion along the width direction. Moreover, even if the cut paper CS passing through the end portion of the downstream side of the transport direction in the first guide 61 is transported while being pressed against the first guide 61 , the recording performed on the surface is not disturbed and the sliding contact trace is not formed in the end portion of the downstream side of the transport direction in the first guide 61 .
- the short cut paper CS passed through the end portion of the downstream side of the transport direction in the first guide 61 is transported to the further downstream side (the left side in FIG. 10 ) and slides on the lower surface of the first fixing transport guide 144 in the transport portion 136 .
- the end portion of the upstream side of the transport direction in the first fixing transport guide 144 overlaps with the end portion of the downstream side of the transport direction in the first guide 61 in the thickness direction (the up and down direction) of the cut paper CS, and is situated at the upper side further than the end portion of the downstream side of the transport direction in the first guide 61 . That is, the end portion of the upstream side of the transport direction in the first fixing transport guide 144 is provided without providing a gap in the transport direction between it and the end portion of the downstream side of the transport direction in the first guide 61 .
- the cut paper CS is smoothly transported to the downstream side so that the tip (the end portion of the downstream side of the transport direction) in the transport direction is not caught by the end portion of the upstream side of the transport direction in the first fixing transport guide 144 disposed adjacent to the downstream side of the transport direction of the flapper 46 .
- the short cut paper CS is discharged from the short outlet 34 to the outside of the case 31 .
- the relatively long cut paper CS is cut and transported from the recorded continuous paper S (the long recording medium).
- the respective driven rollers 41 d to 43 d in the first to third transport roller pairs 41 to 43 are situated at the pinched position, and the flapper 46 is situated at the long position that is also the standby position.
- the first cam motor 53 of the transport apparatus 27 is subjected to the forward rotation driving based on the selected information. Then, the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 in the transport apparatus 27 are moved to the separated position. In addition, the flapper 46 is still situated at the long position that is also the standby position. Moreover, the continuous paper S is unwound from the unwinding portion 13 and is transported from the upstream side of the transport direction to the downstream side. Next, when the continuous paper S passes through the lower portion of the recording head 19 in the recording portion 17 , ink is ejected from the recording head 19 to the surface of the continuous paper S, whereby the surface of the continuous paper S is recorded.
- the continuous paper S is further transported to the downstream side while continuously recording the upstream side part of the continuous paper S by the recording head 19 , and the tip passes through the lower portion of the cutter 21 . Moreover, the tip of the continuous paper S passed through the cutter 21 is further transported and passes through the curl correction portion 22 .
- the continuous paper S is continuously recorded by the recording head 19 in the upstream side part, the pinching force is not given to the continuous paper S from the decurl roller 25 .
- the continuous paper S is transported to the transport apparatus 27 in the curled state without correcting the curl.
- the continuous paper S in which the tip is transported into the transport apparatus 27 in the state of being continuously recorded by the recording head 19 in the upstream side part, is transported to the first transport roller pair 41 while coming into sliding-contact with the transport path surface 38 a in the second fixing introduction guide 38 in the introduction portion 35 .
- the continuous paper S comes into contact with the driving roller 41 b , whereby the transport force is given from the driving roller 41 b to the continuous paper S.
- the driven roller 41 d of the first transport roller pair 41 is situated at the separated position where the outer peripheral surface of the driven roller 41 d is lower than the transport path surface 37 a in the first fixing introduction guide 37 .
- the continuous paper S passing through the first transport roller pair 41 does not come into contact with the driven roller 41 d .
- the continuous paper S, which is continuously recorded by the recording head 19 in the upstream side part is further transported to the downstream side without the transport load applied from the driven roller 41 d of the first transport roller pair 41 .
- the flapper 46 When the continuous paper S is transported, since the flapper 46 is situated at the long position that is also the standby position, the inlet to the transport path in the transport portion 136 is blocked by the flapper 46 in the position of the upstream side of the transport direction. For that reason, it is suppressed that the continuous paper S passed through the first transport roller pair 41 is brought into the short transport path of the transport portion 136 by the flapper 46 . Moreover, the continuous paper S is transported onto the second guide 62 of the flapper 46 in the state where the recorded surface faces upward.
- the continuous paper S transported onto the second guide 62 of the flapper 46 is further transported to the downstream side (the left oblique upper part of FIG. 11 ) while sliding on the upper surface of the second guide 62 . That is, the upper surface of the second guide 62 is the transport path surface through which the continuous paper S is transported. Moreover, the continuous paper S is transported from the upper surface of the second guide 62 onto the transport path surface 44 a of the first fixing reversal guide 44 .
- the end portion of the upstream side of the transport direction in the first reversal transport guide 44 overlaps with the end portion of the downstream side of the transport direction in the second guide 62 in the thickness direction (the up and down direction) of the continuous paper S, and is situated at the lower side further than the end portion of the downstream side of the transport direction in the second guide 62 . That is, the end portion of the upstream side of the transport direction in the first fixing reversal guide 44 is provided without providing a gap in the transport direction between it and the end portion of the downstream side of the transport direction in the second guide 62 .
- the continuous paper S is smoothly transported from the upper surface of the second guide 62 onto the transport path surface 44 a of the first fixing reversal guide 44 so that the tip (the end portion of the downstream side of the transport direction) in the transport direction is not caught by the end portion of the upstream side of the transport direction in the first fixing reversal guide 44 disposed adjacent to the downstream side of the transport direction of the flapper 46 .
- the continuous paper S is transported while being pressed against the upper surface of the second guide 62 of the flapper 46 situated at the outer peripheral side (the left side in FIG. 11 ) in the reversal transport portion 36 and the transport path surface 44 a of the first fixing reversal guide 44 .
- force is applied from the end portion of the downstream side of the transport direction in the second guide 62 to the continuous paper S passing through the end portion of the second guide 62 .
- the end portion of the downstream side of the transport direction in the second guide 62 is formed in a comb shape, there is a concern that the sliding contact trace of the comb-shaped end portion is formed on the back surface of the continuous paper S.
- the end portion of the downstream side of the transport direction in the second guide 62 is formed so as to be extended in the linear shape along the width direction of the continuous paper S. For that reason, the force from the end portion of the downstream side of the transport direction in the second guide 62 is uniformly applied to the continuous paper S passing through the end portion along the width direction. Moreover, even if the continuous paper S passing through the end portion of the downstream side of the transport direction in the second guide 62 is transported while being pressed against the second guide 62 , the sliding contact trace is not formed in the end portion of the downstream side of the transport direction in the second guide 62 .
- the continuous paper S is further transported to the downstream side while sliding on the transport path surface 44 a of the first fixing reversal guide 44 . Moreover, the continuous paper S coming into contact with the driving roller 42 b disposed in the first fixing reversal guide 44 side upon passing through the second transport roller pair 42 , whereby the transport force is given from the driving roller 42 b to the continuous paper S. Meanwhile, the driven roller 42 d of the second transport roller pair 42 is situated at the separated position where the outer peripheral surface of the driven roller 42 d is the right side further than the transport path 54 a in the second fixing reversal guide 45 . For that reason, the continuous paper S passing through the second transport roller pair 42 does not come into contact with the driven roller 42 d .
- the continuous paper S which is continuously recorded by the recording head 19 in the upstream side part, is further transported to the downstream side without even the transport load applied from the driven roller 42 d of the second transport roller pair 42 in addition to the driven roller 41 d of the first transport roller pair 41 .
- the recorded surface of the continuous paper S in which the tip of the transport direction passes through the second transport roller pair 42 and is transported to the downstream side while sliding on the transport path surface 44 a of the first fixing reversal guide 44 , faces downward by being reversed. Then, the continuous paper S slides on the transport path surface 45 a of the second fixing reversal guide 45 by receiving gravity in the vicinity of the upstream side of the transport direction of the third transport roller pair 43 .
- the continuous paper S comes into contact with the driving roller 43 b disposed in the second fixing reversal guide 45 side upon passing though the third transport roller pair 43 , whereby the transport force is given from the driving roller 43 b to the continuous paper S.
- the driven roller 43 d of the third transport roller pair 43 is situated at the separated position where the outer peripheral surface of the driven roller 43 d is the upper side further than the transport path surface 44 a in the first fixing reversal guide 44 . For that reason, the continuous paper S passing through the third transport roller pair 43 does not come into contact with the driven roller 43 d .
- the continuous paper S which is continuously recorded by the recording head 19 in the upstream side part, is further transported to the downstream side without even the transport load applied from the driven roller 43 d of the third transport roller pair 43 in addition to the driven rollers 41 d and 42 d of the first and second transport roller pairs 41 and 42 .
- the respective driving rollers 41 b to 43 b of the first to third transport roller pairs 41 to 43 are formed by a metallic material having a relatively low frictional coefficient or the like, the transport force is given to the continuous paper S based on the frictional resistance, but the frictional resistance is extremely small, and the transport load is not added.
- the continuous paper S which passes the reversal transport portion 36 and in which the front and the back are reversed, is discharged from the long outlet 33 toward the upper surface 12 b of the main body case 12 in the state where the recorded surface faces downward.
- the continuous paper S in which the recording by the recording head 19 is finished in the upstream side part, is cut by the cutter 21 and becomes the relatively long cut paper CS.
- the first cam motor 53 of the transport apparatus 27 is subjected to the backward rotation driving, and the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are moved from the separated position to the pinched position.
- the long cut paper CS enters the state of being pinched by the first to third transport roller pairs 41 to 43 (see FIG. 2 ).
- the long cut paper CS is moved to the downstream side of the transport direction based on the driving rotation of the respective driving rollers 41 b to 43 b , and in this connection, the respective paired counterpart driven rollers 41 d to 43 d are subjected to the driven rotation, whereby the transport force is given from the first to third transport roller pairs 41 to 43 to the long cut paper CS. Moreover, the long cut paper CS is transported until the cut rear end portion (the end portion of the upstream side of the transport direction) of the cut paper CS is discharged to the outside of the case 31 of the transport apparatus 27 .
- the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S. That is, in the case of the continuous paper S in which the length dimension along the transport direction is longer than the distance dimension between the position where the first transport roller pair 41 is disposed and the recording position of the upstream side from that position, the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S, whereby the transport load applied to the continuous paper S by the first to third transport roller pairs 41 to 43 is smaller than the case of the pinched state.
- the transport load relative to the continuous paper S passing through the transport path is suppressed.
- the first to third transport roller pairs 41 to 43 may move the respective driven rollers 41 d to 43 d in a direction perpendicular to the axial direction of the respective rotation shafts 41 c to 43 c that is a direction separated from the transport direction of the continuous paper S.
- the configuration of the transport apparatus 27 capable of suppressing the transport load.
- the respective paired counterpart driven rollers 41 d to 43 d are more easily moved to the direction intersecting the axial direction of the respective rotation shafts 41 c to 43 c than the respective driving rollers 41 b to 43 b . For that reason, it is possible to easily configure the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S. Thus, it is possible to easily realize the transport apparatus 27 capable of suppressing the transport load that is added to the continuous paper S to be transported in this manner.
- the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are formed of a material having the frictional coefficient higher than the respective paired counterpart driving rollers 41 b to 43 b . For that reason, in the pinched state where the respective driven rollers 41 d to 43 d pinch the cut paper CS between the same and the respective paired counterpart driving rollers 41 b to 43 b , the sufficient transport force can be given to the cut paper CS to be transported.
- the transport apparatus 27 can be compatible with the function of suppressing the transport load to be added to the continuous paper S upon transporting the continuous paper S and the function of giving the necessary transport force to the cut paper CS upon transporting the cut paper CS.
- Flapper 46 is disposed such that the end portion of the downstream side of the transport direction overlaps with the respective end portions of the upstream side of the transport direction of the first fixing reversal guide 44 and the first fixing transport guide 144 in the thickness direction of the continuous paper S and the cut paper CS to be transported. For that reason, it is possible to dispose the flapper 46 , the first fixing reversal guide 44 and the first fixing transport guide 144 , which are adjacently disposed in the respective transport directions of the continuous paper S and the cut paper CS, along the respective transport paths without providing unnecessary space between both members in the respective transport directions. Thus, even when the flapper 46 is included in the middle of the transport path in a displaceable manner, it is possible to suppress an increase in size of the apparatus in the transport direction and the transport defect of the continuous paper S and the cut paper CS.
- the flapper 46 has a space portion AS, into which the end portions of the upstream side of the transport direction of the first fixing reversal guide 44 and the first fixing transport guide 144 can be inserted, in the end portion of the downstream side of the transport direction. For that reason, it is possible to smoothly transport the continuous paper S and the cut paper CS, in which the transport direction is switched over in the switch-over position by the flapper 46 , without being caught by the end portions of the upstream side of the transport direction of the first fixing reversal guide 44 and the first fixing transport guide 144 disposed adjacent to the downstream side of the flapper 46 .
- the respective end portions of the downstream side of the transport direction in the first guide 61 and the second guide 62 of the flapper 46 are formed so as to be extended in a linear shape along the width direction. For that reason, when the continuous paper S and the cut paper CS are transported while coming into contact with the end portions of the downstream side of the transport direction in the first guide 61 and the second guide 62 , force from the respective end portions of the downstream side of the transport direction in the first guide 61 and the second guide 62 is uniformly applied to the continuous paper S and the cut paper CS in the width direction intersecting the transport direction of the continuous paper S and the cut paper CS. Thus, it is possible to suppress that the slid-trace is formed on the surfaces in the continuous paper S and the cut paper CS which come into sliding-contact with the end portions of the downstream side of the transport direction of the first guide 61 and the second guide 62 .
- the recording medium may be, for example, a continuous film, a cut film or the like, without being limited to the continuous paper S or the cut paper CS. Furthermore, the recording medium to be discharged from the short outlet 34 may use a single sheet paper without being limited to the cut paper CS formed by cutting the continuous paper S during transportation.
- the respective driving rollers 41 b to 43 b and the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 may be, for example, rollers which form a long cylindrical shape extended in the respective driving shafts 41 a to 43 a and the respective rotations shafts 41 c to 43 c , without being limited to toe rollers which are divided into a plurality of rollers in the axial direction of the respective driving shafts 41 a to 43 a and the respective rotations shafts 41 c to 43 c .
- the respective convex portions 37 c , 38 c , 61 b and 62 b may not be provided.
- the respective outer peripheral surfaces of the respective driving rollers 41 b to 43 b in the first to third transport roller pairs 41 to 43 may not be formed of a material having the frictional coefficient higher than those of the respective outer peripheral surfaces in the respective paired counterpart driving rollers 41 b to 43 b .
- the first to third transport roller pairs 41 to 43 may be configured so that the respective driving rollers 41 b to 43 b are moved away from the respective paired counterpart driven rollers 41 d to 43 d without being limited to the movement of the respective driven rollers 41 d to 43 d from the respective paired counterpart driving rollers 41 b to 43 b . Furthermore, the first to third transport roller pairs 41 to 43 may be configured so that both of the rollers are moved in a direction away from each other without being limited to the separation of one of that paired counterpart rollers from the other thereto. In addition, the first to third transport roller pairs 41 to 43 may be configured so that the driving rollers are paired without being limited to one in which the driving roller and the driven roller form the pair.
- the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 may not be moved until the outer peripheral surfaces of the respective driven rollers 41 d to 43 d are situated outside the transport path further than the transport path surfaces 37 a , 44 a , and 45 a of the first fixing introduction guide 37 , the first fixing reversal guide 44 , and the second fixing reversal guide 45 , which are situated on the side where the respective driven rollers 41 d to 43 d are disposed.
- the respective driven rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 may be individually moved without being limited to the simultaneous movement (at the same timing).
- the number of the transport roller pair disposed in the transport apparatus 27 may be equal to or greater than three or more or equal to or less than three.
- the first transport roller pair 41 may not be provided between the first fixing introduction guide 37 and the flapper 46 . In that case, it is desirable that the plurality of convex portions 61 b in the comb-shaped end portion of the upstream side of the transport direction of the flapper 46 meshes with the plurality of concave portions 37 b and 38 b in the respective comb-shaped end portions of the downstream side of the transport direction of the first and second fixing introduction guides 37 and 38 .
- the flapper 46 may be, for example, an approximately triangular-shaped prism or the like when viewed from the cross-section in which an approximately rectangular, triangular or arc-shaped concave portion or the like when viewed from the cross-section are recessed in the lower side portion becoming the downstream side of the transport direction along the transport direction, without being limited to that formed by two sheets of plate-like first guide 61 and the second guide 62 .
- the recording apparatus was embodied to the ink jet type printer 11
- the recording apparatus may be embodied to a FAX device, a copy device or a multifunction machine including a plurality of functions or the like without being limited to the printer.
- a recording apparatus ejecting or discharging liquid other than ink may also be adopted.
- the recording apparatus can be applied to various liquid ejecting apparatus that includes a liquid ejecting head or the like for ejecting small amount of liquid droplet.
- the liquid droplet refers to the state of liquid to be ejected from the recording apparatus and also include one which leaves traces in a granular shape, a tear shape, a thread shape.
- liquid may be a material that can be ejected by the recording apparatus.
- the material may be one in which the substance is the state of the liquid phase, and the material includes a liquid body having high or low viscosity, sol, gel water, other inorganic solvent, organic solvent, solution, liquid phase resin, a flow-shaped body such as a liquid phase metal (metallic melt), liquid as one state of substance, as well as one in which particles of a functional material formed of solid body such as pigment or metallic particles are dissolved, dispersed or mixed in the solvent.
- a typical example of liquid includes ink as described in the embodiment described above, a liquid crystal or the like.
- ink includes various ink compositions such as a general water-based ink, an oil-based ink, a gel ink, and a hot-melt ink.
- the liquid ejecting apparatus may be, for example, a recording apparatus for ejecting liquid which includes the material such as an electrode material or a color material to be used in manufacturing a liquid crystal display, an EL (electroluminescence) display, a plane emission display, a color filter, or the like in the form of the dispersion or the dissolution; a recording apparatus that ejects a bio organic matter to be used in manufacturing a bio chip; a recording apparatus which is used as a precision pipette and ejects liquid becoming a sample; a printing apparatus; a micro dispenser or the like.
- a recording apparatus which ejects a lubricant oil to precision machine such as a watch or a camera by a pinpoint
- a recording apparatus which ejects a transparent resin liquid such as an ultraviolet-curing resin onto the substrate so as to form a micro hemispherical lens (an optical lens) to be used in an optical communication element or the like
- a recording apparatus which ejects an etching liquid such as acid or alkaline so as to etch the substrate or the like.
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Handling Of Cut Paper (AREA)
- Advancing Webs (AREA)
Abstract
A transport apparatus that transports a recording medium from an upstream side of a transport path to a downstream side thereof, including a transport roller pair which is disposed at a position more on a downstream side than a recording position where the recording medium is recorded in the transport path and transports the recording medium along the transport path, wherein, when the recording medium passes through between both rollers, in a case where a length dimension along the transport direction of the recording medium is longer than a distance dimension between a position where the transport roller pair is disposed and the recording position more on the upstream side than the position, both rollers do not pinch a long recording medium.
Description
- The entire disclosure of Japanese Patent Application No: 2010-188278, filed Aug. 25, 2010 is expressly incorporated by reference herein.
- 1. Technical Field
- The present invention relates to a transport apparatus that transports a recording medium such as, for example, long paper or single sheet paper and a recording apparatus including the same.
- 2. Related Art
- In the related art, among recording apparatuses that record a recording medium, there is an apparatus including a transport apparatus that transports the recorded recording medium toward an outlet (for example, JP-A-11-193158). That is, a transport apparatus described in JP-A-11-193158 is configured so as to transport the recording medium recorded by a recording unit at a recording position along a transport path by rotating both rollers constituting a transport roller pair in the state of being pinched therebetween by the transport roller pair that is disposed at a position more on a downstream side than the recording position in the transport path.
- In the transport apparatus described in JP-A-11-193158, a plurality of kinds of recording medium having different length dimensions along the transport direction is transported toward the outlet. However, even when there is a difference in length dimensions along the transport direction of the recording medium, the transport roller pair similarly pinches the respective recording medium between the rollers which are situated at one surface side of the recording medium and the other surface side, respectively. That is, both rollers of the transport roller pair pinch the recording medium therebetween, whereby a transport load is applied to the respective recording medium passing between both rollers of the transport roller pair. For this reason, in a case where a downstream side part of the recording medium is in the state of being pinched by the transport roller pair therebetween, when the upstream side part of the recording medium is still recorded by the recording unit in the recording position, there is a concern that disturbance of the recording relative of the upstream side part of the recording medium or the like is generated due to the generation of the transport load in the downstream side part of the recording medium, and the recording quality declines.
- An advantage of some aspects of the invention is to provide a transport apparatus that can suppress the transport load relative to the recording medium passing through the transport path, and a recording apparatus that can suppress a decline in recording quality.
- According to an aspect of the invention, there is provided a transport apparatus that transports a recording medium from an upstream side of a transport path toward a downstream side thereof. The transport apparatus includes a transport roller pair which is disposed at a position more on a downstream side than a recording position where the recording medium is recorded in the transport path, at least one of a roller situated at one surface side of the recording medium and a roller situated at the other surface side thereof comes into contact with the recording medium passing through the position and is rotated, whereby the transport roller pair transports the recording medium along the transport path, wherein, when the recording medium passes through between both rollers, in a case where a length dimension along the transport direction of the recording medium is longer than a distance dimension between a position where the transport roller pair is disposed and the recording position more on the upstream side than the position, both rollers do not pinch a long recording medium therebetween.
- According to the configuration, in a case where the recording medium passing through the position, where the transport roller pair is disposed in the middle of the transport path, is a long recording medium, the transport roller pair does not pinch the recording medium therebetween. That is, when the length dimension along the transport direction of the recording medium is longer than the distance dimension between the position where the transport roller pair is disposed and the recording position more on the upstream side than the position, the transport roller pair does not pinch the long recording medium, whereby the transport load added to the recording medium by the transport roller pair is smaller than the case of the pinched state. Thus, the transport load relative to the recording medium passing through the transport path is suppressed, with the result that, for example, when the long recording medium passes through between both rollers of the transport roller pair, even in a case where the recording is concurrently performed in the recording position of the upstream side part in the recording medium, it is possible to contribute to the suppression of degradation of recording quality.
- In the transport apparatus of the invention, when both rollers enter the non-pinched state, the transport roller pair may be moved in a direction, in which at least one roller intersects an axial direction of the roller, and is separated from the transport path.
- According to the configuration, when the transport roller pair does not pinch the long recording medium, at least one roller may be moved in a direction, in which at least one roller intersects the axial direction, and is separated from the transport path. Thus, it is possible to easily realize the configuration of the transport apparatus capable of suppressing the transport load.
- In the transport apparatus of the invention, the transport roller pair may include a driving roller which comes into contact with one surface side in the recording medium and is subjected to a driving rotation, and a driven roller which comes into contact with the other surface side in the recording medium to be transported along with the driving rotation of the driving roller and is subjected to a driven rotation, and when the driven roller transports the long recording medium, the transport roller pair is moved in the direction separated from the driving roller.
- According to the configuration, since the driven roller is easily moved in the direction intersecting the axial direction further than the driving roller, it is possible to easily configure the transport roller pair which does not pinch the long recording medium. Thus, it is possible to easily realize the transport apparatus capable of suppressing the transport load which is added to the long recording medium to be transported in this manner.
- In the transport apparatus of the invention, a roller surface of the driven roller may be formed by a member that has a frictional coefficient higher than that of a roller surface in the driving roller.
- According to the configuration, in the pinched state in which the driven roller pinches the recording medium with the driving roller, it is possible to give the sufficient transport force to the recording medium to be transported. Thus, the transport apparatus can be compatible with the function of suppressing the transport load to be added to the long recording medium upon transporting the long recording medium and the function of giving another recording medium the necessary transport force upon transporting another recording medium other than the long recording medium.
- Furthermore, according to another aspect of the invention, there is provided a recording apparatus which includes a recording unit that records a recording medium to be transported from an upstream side of a transport path to a downstream side thereof, and the transport apparatus having the above configuration that transports the recording medium recorded by the recording unit.
- According to the configuration, it is possible to obtain the same effect as the case of the transport apparatus in the recording apparatus.
- The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.
-
FIG. 1 is a schematic front view of a printer in the present embodiment. -
FIG. 2 is a schematic front cross-sectional view of a transport apparatus included in a printer. -
FIG. 3 is a cross-sectional view taken from lines III-III inFIG. 3 . -
FIG. 4A is a schematic front view of a first movement mechanism that shows a case where a first transport roller pair is in a pinched state. -
FIG. 4B is a schematic front view of a first movement mechanism that shows a case where a first transport roller pair is in a non-pinched state. -
FIG. 5A is a schematic side view of a second movement mechanism that shows a case where a second transport roller pair is in a pinched state. -
FIG. 5B is a schematic side view of a second movement mechanism that shows a case where a second transport roller pair is in a non-pinched state. -
FIG. 6A is a schematic side view of a third movement mechanism that shows a case where a third transport roller pair is in a pinched state. -
FIG. 6B is a schematic side view of a third movement mechanism that shows a case where a third transport roller pair is in a non-pinched state. -
FIG. 7 is a schematic diagram taken from lines VII-VII inFIG. 2 . -
FIG. 8A is a schematic cross-sectional view taken from lines VIIIA-VIIIA inFIG. 7 that shows the state in which a flapper is in a long position. -
FIG. 8B is a schematic cross-sectional view taken from lines VIIIB-VIIIB inFIG. 7 that shows the state in which a flapper is in a short position. -
FIG. 9A is a schematic diagram taken from lines VIIIA-VIIIA inFIG. 7 that shows the state in which a flapper is in a long position. -
FIG. 9B is a schematic diagram taken from lines VIIIB-VIIIB inFIG. 7 that shows the state in which a flapper is in a short position. -
FIG. 10 is a schematic front cross-sectional view of a transport apparatus in a case of transporting cut paper. -
FIG. 11 is a schematic front cross-sectional view of a transport apparatus in a case of transporting continuous paper. - Hereinafter, an embodiment will be described in which the invention is embodiment to an ink jet type printer (herein, also referred to as a “printer”), which is a sort of a recording apparatus, and a transport apparatus included in the printer, based on
FIGS. 1 to 11 . In addition, in the description below, a “front and rear direction”, an “up and down direction”, and a “left and right direction” refer to the “front and rear direction”, the “up and down direction”, and the “left and right direction” shown by arrows in each drawing, unless otherwise mentioned. Furthermore, the “front and rear direction” in this case corresponds to a width direction intersecting a transport direction of a recording medium, the “up and down direction” corresponds to a vertical direction, and in the “left and right direction”, a direction facing from the right side to the left side corresponds to the transport direction of the recording medium. - As shown in
FIG. 1 , aprinter 11 includes amain body case 12 forming an approximately rectangular shape. In a position that is a right lower portion in themain body case 12, anunwinding portion 13 is provided which unwinds the long continuous paper S. In theunwinding portion 13, awinding shaft 14 extended in a width direction (the front and rear direction) perpendicular to the transport direction of the continuous paper S is rotatably provided. In the windingshaft 14, the continuous paper S, which is an example of the long recording medium, is supported so as to be rotatable integrally with the windingshaft 14 in the state of being wound in a roll shape in advance. That is, the continuous paper S is unwound from the windingshaft 14 by the rotation of the windingshaft 14 and is transported toward the downstream side (the left side) of the transport direction. - In a position of the upper part of the vertical direction of the winding
shaft 14, arelay roller 15 extending in the width direction (the front and rear direction) of the continuous paper S in a manner parallel to the windingshaft 14 is rotatably disposed. Moreover, by winding the continuous paper S, which is unwound from the windingshaft 14, around therelay roller 15 from the right lower portion, the continuous paper S is horizontally transported toward the downstream side (the left side) of the transport direction. - Furthermore, in a position of the downstream side (the left side) further than the
relay roller 15, arectangular support member 16 capable of supporting the continuous paper S to be transported is disposed. Asupport surface 16 a, which is an upper surface of thesupport member 16, is disposed so as to have the same height as a top of an outer peripheral surface in therelay roller 15. For this reason, the continuous paper S, in which the transport direction is converted into the horizontal left direction by therelay roller 15, is transported to the left side, which is the downstream side of the transport direction, while coming into sliding-contact with thesupport surface 16 a of thesupport member 16. - In a position which is the upper part of the
support member 16 and faces thesupport surface 16 a of thesupport member 16, arecording portion 17 is provided which records the continuous paper S so as to be transported. Therecording portion 17 includes acarriage 18 which can reciprocate in a main scanning direction intersecting the transport direction of the continuous paper S by a driving unit (not shown), and arecording head 19 as an example of a recording unit supported on the lower surface of thecarriage 18. The lower surface of therecording head 19 is a horizontal nozzle forming surface through which a plurality of nozzles (not shown) ejecting ink is opened. Moreover, therecording head 19 performs the recording by ejecting ink to the continuous paper S to be transported to the downstream side (the left side) of the transport direction while sliding on thesupport surface 16 a of thesupport member 16. In addition, on the transport path through which the continuous paper S is transported, the position, where therecording head 19 is disposed, is a recording position where the continuous paper (the recording medium) S is recorded. - Furthermore, in the position of the downstream side (the left side) of the transport direction further than the recording position where the
recording head 19 is disposed, aroller pair 20 including a driving roller and a driven roller is disposed. In the state in which the continuous paper S is pinched by the driving roller and the driven roller, the driven roller is subjected to the driven rotation along with the movement of the continuous paper S to the downstream side (the left side) of the transport direction based on the driving rotation of the driving roller, whereby theroller pair 20 transports the continuous paper S to the downstream side (the left side) of the transport direction while pinching the continuous paper S between both rollers. - Furthermore, in the position of the downstream side (the left side) of the transport direction further than the
roller pair 20, acutter 21 is disposed which is capable of cutting the continuous paper S over the width direction (the front and rear direction) intersecting the transport direction. Thecutter 21 cuts the long continuous paper S into a cut paper CS in which the length side along the transport direction is a predetermined length. Moreover, when the continuous paper S is cut into the cut paper CS of a predetermined length by thecutter 21, the continuous paper S is transported to the downstream side (the left side) of the transport direction one by one whenever the continuous paper S is cut. - In a position of the downstream side (the left side) of the transport direction further than the
cutter 21, acurl correction portion 22 is provided which corrects (decurls) the curl (winding) of the cut paper CS formed by the cutting of the continuous paper S by thecutter 21. Thecurl correction portion 22 includes anupstream side roller 23 which comes into contact with one surface side (the lower surface side inFIG. 1 ) of the cut paper CS, adownstream side roller 24 which comes into contact with one surface side of the cut paper CS in the downstream side of the transport direction further than theupstream side roller 23, and adecurl roller 25 which comes into contact with the other surface side (the upper surface side inFIG. 1 ) of the cut paper CS in the position between theupstream side roller 23 and thedownstream side roller 24. Moreover, thedecurl roller 25 corrects the curl of the cut paper CS by pinching the cut paper CS between thedecurl roller 25 and thedownstream side roller 24. In addition, in the present embodiment, for example, when the relatively short cut paper CS shown inFIG. 10 is transported, thecurl correction portion 22 performs the correction of the curl. However, when the long cut paper CS (seeFIG. 2 ) longer than the short cut paper CS or the continuous paper S (seeFIG. 11 ) is transported, thecurl correction portion 22 does not perform the correction of the curl. - Furthermore, in the side wall of the
main body case 12 in the position which is more on the downstream side (the left side) of the transport direction than thecurl correction portion 22, a transport port (not shown) for transporting the continuous paper S (specifically, the end portion of the downstream side of the transport direction) and the cut paper CS from the inner portion of themain body case 12 to the outer portion of themain body case 12 is opened and formed. Moreover, on an upper outer surface of theleft side wall 12 a in themain body case 12 formed with the transport port, atransport apparatus 27 is provided which transports so as to discharge the continuous paper S and the cut paper CS, which is transported from the inner portion of themain body case 12 through the transport port, to the outer portion of themain body case 12. Thetransport apparatus 27 is configured so that the entire apparatus of the unit configuration can be attached to and detached from themain body case 12. Thetransport apparatus 27 is configured so that the whole apparatuses of the unit configuration can be attached to or detached from themain body case 12. Moreover, thetransport apparatus 27 transports the continuous paper S and the cut paper CS by the different transport paths, respectively, and discharges the paper from the respective different outlets. - Next, the
transport apparatus 27 will be described based onFIGS. 2 to 7 . - As shown in
FIG. 2 , thetransport apparatus 27 includes acase 31 having an inner portion of a hollow shape. In the lower portion of theright side wall 31 a in thecase 31, aninlet 32 for carrying the continuous paper S or the cut paper CS transported from themain body case 12 side via theroller pair 20 and thecurl correction portion 22 into thecase 31 is opened and formed. Furthermore, in the upper portion (that, is the upper portion of the vertical direction of the inlet 32) of theright side wall 31 a in thecase 31, along outlet 33 for discharging the long cut paper CS or the continuous paper S from the inner portion of thecase 31 to the outer portion of thecase 31 is opened and formed. Moreover, in the lower portion (that is, the left oblique upper portion of the inlet 32) of theleft side wall 31 b in thecase 31, ashort outlet 34 for discharging the short cut paper CS from the inner portion of thecase 31 to the outer portion of thecase 31 is opened and formed. - In the
case 31, aninduction portion 35 which leads the continuous paper S and the cut paper CS into thecase 31 through the transport port of themain body case 12 and theinlet 32 of thecase 31, and areversal transport portion 36 for transporting thelong outlet 33 of the upper position while reversing the continuous paper S led by theinduction portion 35 are provided. Furthermore, in thecase 31, atransport portion 136 for transporting the cut paper CS led by theinduction portion 35 with the recorded surface facing upward to theshort outlet 34 of the left sloped upper position is provided. - The
introduction portion 35 includes a firstfixing introduction guide 37 and a secondfixing introduction guide 38 of an approximately rectangular plate shape fixed to thecase 31. The firstfixing introduction guide 37 is sloped from abottom surface 31 c side of thecase 31 toward the left upper part (in other words, so as to rise toward the downstream side of the transport direction). Furthermore, the secondfixing introduction guide 38 is disposed vertically upward the first fixingintroduction guide 37 and is gently sloped toward the left upper part. Moreover, the upper surface of the first fixingintroduction guide 37 and the lower surface of the secondfixing introduction guide 38 function as transport path surfaces 37 a and 38 a transporting the cut paper CS or the continuous paper S, whereby the introduction path is formed between the first fixingintroduction guide 37 and the secondfixing introduction guide 38. - The
reversal transport portion 36 includes a reversalpath forming member 39 which forms a reversal path leading the long cut paper CS or the continuous paper S to thelong outlet 33 while reversing the same, and first to third transport roller pairs 41 to 43 which give the transport force to the long cut paper CS or the continuous paper S to be transported in the transport path toward thelong outlet 33. - The reversal
path forming member 39 includes a firstfixing reversal guide 44 and a secondfixing reversal guide 45 forming an approximate arc shape when viewed from the cross-section fixed to thecase 31. The secondfixing reversal guide 45 is disposed so as to face the surface (the left side surface inFIG. 2 ) of the outer peripheral side in the secondfixing reversal guide 45 between the surface (the right side surface inFIG. 2 ) of the inner peripheral side of the first fixingreversal guide 44 in the position becoming the inner peripheral side of the first fixingreversal guide 44 at intervals slightly wider than the thickness size of the cut paper CS and the continuous paper S. Moreover, the right side surface of the first fixingreversal guide 44 and the left side surface of the secondfixing reversal guide 45 function as the transport path surfaces 44 a and 45 a transporting the cut paper CS or the continuous paper S, whereby a reversal path curved toward the left side is formed between the first fixingreversal guide 44 and the secondfixing reversal guide 45. - Furthermore, the first fixing
reversal guide 44 is configured so that the length of the upstream side of the transport direction is shorter than the length of the upstream side of the transport direction in the secondfixing reversal guide 45. That is, in the transport direction along the curved reversal path, in the first fixingreversal guide 44, length of the upstream side of the transport direction is formed to be short so that the end portion of the upstream side of the transport direction is situated at the downstream side of the transport direction further than the end portion of the upstream side of the transport direction in the secondfixing reversal guide 45. - The first to third transport roller pairs 41 to 43 are disposed in the order of the first
transport roller pair 41, the secondtransport roller pair 42, and the thirdtransport roller pair 43 along the transport direction of the long cut paper CS or the continuous paper S facing from the upstream side of the reversal path toward the downstream side (from the lower side to the upper side inFIG. 2 ). Specifically, the firsttransport roller pair 41 is disposed in the position of the upstream end (that is, the end portion of the downstream side of the transport direction in the introduction portion 35) of the reversal path formed by the reversalpath forming member 39. The thirdtransport roller pair 43 is disposed in the position of the downstream side (that is, the left side of the long outlet 33) of the reversal path. Furthermore, the secondtransport roller pair 42 is disposed in the position of the approximate center (that is, between the first and third transport roller pairs 41 and 43 that is the left sides of the first and third transport roller pairs 41 and 43) of the reversal path. - Moreover, the long cut paper CS or the continuous paper S transported to the
reversal transport portion 36 is transported from the upstream side toward the downstream side (that is, from the lower side to the upper side inFIG. 2 ) on the reversal path formed between the first fixingreversal guide 44 and the secondfixing reversal guide 45 by the first to third transport roller pairs 41 to 43. Moreover, the long cut paper CS or the continuous paper S is discharged from thelong outlet 33 toward theupper surface 12 b of themain body case 12 in the state in which the recorded surface faces downward. In this manner, in thetransport apparatus 27, a long transport path for transporting the long cut paper CS or the continuous paper S is formed by the introduction path and the reversal path. - The
transport portion 136 includes a firstfixing transport guide 144 and a secondfixing transport guide 145 of an approximately rectangular plate shape fixed to thecase 31. The firstfixing transport guide 144 is disposed so as to be approximately horizontal from the left side of the first fixingreversal guide 44 toward theshort outlet 34 in such a manner that the end portion of the upstream side of the transport direction is close to the end portion of the upstream side of the transport direction of the first fixingreversal guide 44 in thereversal transport portion 36. Furthermore, the secondfixing transport guide 145 is disposed in the lower portion of the vertical direction of the first fixingtransport guide 144 and is gently sloped to the left upper side from the left side of the firsttransport roller pair 41 toward theshort outlet 34 in such a manner that the end portion of the upstream side of the transport direction is close to the firsttransport roller pair 41. - Moreover, the lower surface of the first fixing
transport guide 144 and the upper surface of the secondfixing transport guide 145 function as the transport path surface that transports the relatively short cut paper CS, whereby a short transport path is formed which transports the short cut paper CS between the first fixingtransport guide 144 and the secondfixing transport guide 145. Moreover, the cut paper CS transported through the introduction path of theintroduction portion 35 passes through the firsttransport roller pair 41, and then is transported from the upstream side toward the downstream side (that is, from the left side to the left side inFIG. 2 ) on the transport path formed between the first fixingtransport guide 144 and the secondfixing transport guide 145. Moreover, the short cut paper CS is discharged from theshort outlet 34 to the outside of thetransport apparatus 27 in the state in which the recorded surface faces upward. - Furthermore, in the position between the end portions of the upstream side of the transport direction of the first fixing
reversal guide 44 and the first fixingtransport guide 144 and the firsttransport roller pair 41, aflapper 46 is disposed. That is, theflapper 46 is oscillated (displaced) in that position, thereby switching over the path portion becoming the downstream side of the transport path further that that position between the long transport path for discharging the long cut paper CS or the continuous paper S and the short transport path for discharging the short cut paper CS. - Next, the first to third transport roller pairs 41 to 43 will be described. In addition, since the first to third transport roller pairs 41 to 43 have the same configuration, the configuration of the first
transport roller pair 41 will be described as an example. Furthermore, inFIG. 3 used in the description of the firsttransport roller pair 41, the cross-sections of the first fixingintroduction guide 37 and the secondfixing introduction guide 38 are omitted. - As shown in
FIG. 3 , the firsttransport roller pair 41 includes a drivingshaft 41 a which is extended in a width direction (the front and rear direction) intersecting the transport direction of the continuous paper S and the cut paper CS, and a plurality (in the present embodiment, six) of drivingrollers 41 b which is integrally rotatably supported on the drivingshaft 41 a at intervals in the axial direction. The drivingroller 41 b is formed by, for example, a metallic material or the like having a relatively low frictional coefficient in a cylindrical shape. The drivingshaft 41 a is connected to an output shaft of thetransport motor 47 so that the driving can be transmitted. Furthermore, the firsttransport roller pair 41 includes a plurality (in the present embodiment, six) of drivenrollers 41 d which is rotatably supported on therotation shaft 41 c extending in the front and rear direction at intervals in the axial direction. The drivenroller 41 d is formed by, for example, a hard rubber or the like having a relatively high frictional coefficient in a cylindrical shape. - Moreover, the plurality of driving
rollers 41 b and the plurality of drivenrollers 41 d in the firsttransport roller pair 41 are disposed so as to face the continuous paper S and the cut paper CS interposed therebetween in the axial direction of the drivingshaft 41 a and therotation shaft 41 c. In addition, the drivenroller 41 d is subjected to the driven rotation along with the driving rotation of the drivingroller 41 b in the state of interposing the continuous paper S and the cut paper CS by the drivingroller 41 b and the drivenroller 41 d, thereby transporting the continuous paper S and the cut paper CS. Furthermore, as shown inFIG. 2 , the firsttransport roller pair 41 is disposed so that the drivingroller 41 b is situated at the relatively upper side (that is, the secondfixing reversal guide 45 side) in the upstream end of the transport path and the drivenroller 41 d is situated at the relatively lower side (that is, theflapper 46 side). - As shown in
FIG. 2 , similar to the firsttransport roller pair 41, the secondtransport roller pair 42 includes a drivingroller 42 b formed of a metallic material having a low frictional coefficient supported on the drivingshaft 42 a, and a drivenroller 42 d formed of a hard rubber having a high frictional coefficient supported on therotation shaft 42 c. Moreover, the secondtransport roller pair 42 is disposed so that the drivingroller 42 b is situated at the left side (that is, the first fixingreversal guide 44 side) of the horizontal direction and the drivenroller 42 d is situated at the right side (that is, the second fixingreversal guide side 45 side) of the horizontal direction. - Similar to the first and second transport roller pairs 41 and 42, the third
transport roller pair 43 includes a drivingroller 43 b formed of a metallic material having a low frictional coefficient supported on the drivingshaft 43 a, and a drivenroller 43 d formed of a hard rubber having a high frictional coefficient supported on therotation shaft 43 c. Moreover, as shown inFIG. 2 , the thirdtransport roller pair 43 is disposed so that the drivingroller 43 b is situated at the lower side (that is, the secondfixing reversal guide 45 side) of the vertical direction and the drivenroller 43 d is situated at the upper side (that is, the first fixingreversal guide 44 side) of the vertical direction. - Furthermore, the frictional coefficients of the
respective driving rollers 41 b to 43 b in the first to third transport roller pairs 41 to 43 are all the same value (as an example, μ1). Furthermore, the frictional coefficients of the respective drivenrollers 41 d to 43 d in the first to third transport roller pairs 41 to 43 are all the same value (as an example, μ2). Moreover, the frictional coefficients (μ1) of the drivingrollers 41 b to 43 b are smaller than the frictional coefficients (μ2) of the drivenrollers 41 d to 43 d (μ1<μ2). - In addition, the first to third transport roller pairs 41 to 43 include first to
third movement mechanisms 48 to 50 for moving the drivenrollers 41 d to 43 d in a direction of approaching and being separated from thecounterpart driving rollers 41 b to 43 b. That is, the first tothird movement mechanisms 48 to 50 move the drivenrollers 41 d to 43 d between the pinched position, where the driven rollers come close to thecounterpart driving rollers 41 b to 43 b and pinch the continuous paper S and the cut paper CS, and a separated position where the driven rollers are separated from thecounterpart driving rollers 41 b to 43 b and do not pinch the continuous paper S and the cut paper CS. - As shown in
FIG. 3 , thefirst movement mechanism 48 in the firsttransport roller pair 41 is provided at one end side (the right end side inFIG. 3 ) of therotation shaft 41 c. As shown inFIG. 4A , thefirst movement mechanism 48 includes a plate-shapedfirst plate 51 formed in an approximately L shape when viewed from the front, and a plate-shapedfirst cam member 52 which comes into contact with thefirst plate 51. Furthermore, thefirst cam member 52 is connected to the output shaft of thefirst cam motor 53 driving and rotating thefirst cam member 52 in a power-transmissible manner. That is, thefirst cam member 52 is rotated around therotation shaft 52 a along with the driving of thefirst cam motor 53. - The
first plate 51 includes ahorizontal portion 51 a extending in the left and right direction, and avertical portion 51 b extending from the left end side of thehorizontal portion 51 a toward the upper side of the vertical direction. Therotation shaft 41 c is fixed to the right end side of thehorizontal portion 51 a. Furthermore, in thevertical portion 51 b, a flat pate-shapedconvex portion 51 c is formed which is protruded from the right end of thevertical portion 51 b toward the front side (that is, the front side of the vertical direction to the first plate 51). Moreover, the outer peripheral surface of thefirst cam member 52 comes into contact with theconvex portion 51 c from the left side. - Thus, when the
first cam motor 53 is driven in the forward direction in the state shown inFIG. 4A , thefirst cam member 52 is rotated around therotation shaft 52 a in the clockwise direction inFIG. 4A by about 90°. Then, as shown inFIG. 4B , along with the rotation of thefirst cam member 52, thefirst plate 51 is rotated around therotation shaft 51 d provided in the bent portion of thefirst plate 51 in the clockwise direction shown inFIG. 4B , whereby therotation shaft 41 c and the drivenroller 41 d in the firsttransport roller pair 41 are moved to the left lower portion. Furthermore, therotation shaft 41 c and the drivenroller 41 d in the firsttransport roller pair 41 is moved so that the outer peripheral surface as an example of the drivenroller 41 d is situated at the lower side further than the transport path surface 37 a of the first fixing introduction guide 37 (seeFIG. 11 ). - Furthermore, when the
first cam motor 53 is driven from the state shown inFIG. 4B in the backward direction, thefirst cam member 52 is rotated around therotation shaft 52 a in the counterclockwise direction shown inFIG. 4B by about 90°. Then, thefirst plate 51 is rotated around therotation shaft 51 d in the counterclockwise direction inFIG. 4B and returns to the position shown inFIG. 4A , and therotation shaft 41 c and the drivenroller 41 d in the firsttransport roller pair 41 are moved to the right upper side according to the rotation of thefirst plate 51 and return to the position shown inFIG. 4A . - Furthermore, similar to the
first movement mechanism 48, thesecond movement mechanism 49 in the secondtransport roller pair 42 is provided at one end side of therotation shaft 42 c. As shown inFIG. 5A , similar to thefirst movement mechanism 48, thesecond movement mechanism 49 includes asecond plate 54 having an approximate L shape when viewed from the front, and asecond cam member 55 which comes into contact with thesecond plate 54. Furthermore, thesecond cam member 55 is connected to the output shaft of thefirst cam motor 53 in the power-transmissible manner. That is, thesecond cam member 55 is rotated around therotation shaft 55 a along with the driving of thefirst cam motor 53. - The
second plate 54 includes ahorizontal portion 54 a extending in the left and right direction, and avertical portion 54 b extending from the left end side of thehorizontal portion 54 a toward the upper side of the vertical direction. In the right end side of thehorizontal portion 54 a, a flat plate-shapedconvex portion 54 c is formed which is protruded from the lower end of thehorizontal portion 54 a toward the front side (that is, the front side of the vertical direction to the second plate 54). Furthermore, therotation shaft 42 c is fixed to the upper end side of thevertical portion 54 b. Moreover, the outer peripheral surface of thesecond cam member 55 comes into contact with theconvex portion 54 c from the upper side. - Thus, when the
first cam motor 53 is driven in the forward direction in the state shown inFIG. 5A , thesecond cam member 55 is rotated around therotation shaft 55 a in the clockwise direction inFIG. 5A by about 90°. Then, as shown inFIG. 5B , along with the rotation of thesecond cam member 55, thesecond plate 54 is rotated around therotation shaft 54 d provided in the bent portion of thesecond plate 54 in the clockwise direction shown inFIG. 5B , whereby the drivenroller 42 d in the secondtransport roller pair 42 is moved to the right side. Furthermore, therotation shaft 42 c and the drivenroller 42 d in the secondtransport roller pair 42 is moved so that the outer peripheral surface of the drivenroller 42 d is situated more at the right side than the transport path surface 45 a of the second fixing reversal guide 45 (seeFIG. 11 ). - Furthermore, when the
first cam motor 53 is driven from the state shown inFIG. 5B in the backward direction, thesecond cam member 55 is rotated around therotation shaft 55 a in the counterclockwise direction shown inFIG. 5B by about 90°. Then, thesecond plate 54 is rotated around therotation shaft 54 d in the counterclockwise direction inFIG. 5B and returns to the position shown inFIG. 5A , and therotation shaft 42 c and the drivenroller 42 d in the secondtransport roller pair 42 are moved to the left upper side according to the rotation of thesecond plate 54 and return to the position shown inFIG. 5A . - Furthermore, similar to the first and
second movement mechanisms third movement mechanism 50 in the thirdtransport roller pair 43 is provided at one end side of therotation shaft 43 c. As shown inFIG. 6A , similar to the first andsecond movement mechanisms third movement mechanism 50 in the thirdtransport roller pair 43 includes athird plate 56 having an approximate L shape when viewed from the front, and athird cam member 57 which comes into contact with thethird plate 56. Furthermore, thethird cam member 57 is connected to the output shaft of thefirst cam motor 53 in the power-transmissible manner. That is, thethird cam member 57 is rotated around therotation shaft 57 a along with the driving of thefirst cam motor 53. - The
third plate 56 includes ahorizontal portion 56 a extending toward the right lower portion in the left and right direction, and avertical portion 56 b extending from the left end side of thehorizontal portion 51 a toward the left lower portion. Therotation shaft 43 c is fixed to the right end side of thehorizontal portion 56 a. Furthermore, in thevertical portion 56 b, a flat pate-shapedconvex portion 56 c is formed which is protruded from the right end of thevertical portion 56 b toward the front side (that is, the front side of the vertical direction to the third plate 56). Moreover, the outer peripheral surface of thethird cam member 57 comes into contact with theconvex portion 56 c from the upper side. - Thus, when the
first cam motor 53 is driven in the forward direction in the state shown inFIG. 6A , thethird cam member 57 is rotated around therotation shaft 57 a in the clockwise direction inFIG. 6A by about 90°. Then, as shown inFIG. 6B , along with the rotation of thethird cam member 57, thethird plate 56 is rotated around therotation shaft 56 d provided in the bent portion of thethird plate 56 in the clockwise direction shown inFIG. 6B , whereby the drivenroller 43 d in the thirdtransport roller pair 43 is moved to the upper side of the vertical direction. Furthermore, therotation shaft 43 c and the drivenroller 43 d in the thirdtransport roller pair 43 is moved so that the outer peripheral surface of the drivenroller 43 d is situated at the upper side further than the transport path surface 44 a of the first fixing reversal guide 44 (seeFIG. 11 ). - Furthermore, when the
first cam motor 53 is driven from the state shown inFIG. 6B in the backward direction, thethird cam member 57 is rotated around therotation shaft 57 a in the clockwise direction shown inFIG. 6B by about 90°. Then, thethird plate 56 is rotated around therotation shaft 56 d in the clockwise direction inFIG. 6B and returns to the position shown inFIG. 6A , and therotation shaft 43 c and the drivenroller 43 d in the thirdtransport roller pair 43 are moved to the lower side according to the rotation of thethird plate 56 and return to the position shown inFIG. 6A . - Next, the first and second fixing introduction guides 37 and 38 in the
introduction portion 35 will be described based onFIGS. 7 , 8A and 8B. In addition, inFIG. 7 , the secondfixing introduction guide 38 situated at the upper side of the first fixingintroduction guide 37 and the secondfixing reversal guide 45 situated at the upper side of the first fixingreversal guide 44 are shown by imaginary lines of dot and dash lines, respectively. - As shown in
FIGS. 7 , 8A and 8B, in the end portion of the downstream side of the transport direction in the first and second fixing introduction guides 37 and 38, rectangularconcave portions introduction guide 37 and the secondfixing introduction guide 38, in the plurality of positions where the drivingroller 41 b and the drivenroller 41 d of the firsttransport roller pair 41 correspond to the continuous paper S and the cut paper CS in the width direction, theconcave portions roller 41 b and the drivenroller 41 d are formed. In other words, in the respective end portions of the downstream side of the transport direction of the first and second fixing introduction guides 37 and 38, a plurality of rectangularconvex portions roller 41 b and the drivenroller 41 d are disposed in the width direction of the continuous paper S and the cut paper CS. - Moreover, as shown in
FIG. 8A , theconvex portion 37 c in the first fixingintroduction guide 37 is extended to the upper position of the vertical direction of therotation shaft 41 c so as to overlap with the drivenroller 41 d of the firsttransport roller pair 41 in the transport direction (the left and right direction). Furthermore, theconvex portion 38 c in the secondfixing introduction guide 38 is extended to the lower position of the vertical direction of the drivingshaft 41 a so as to overlap with the drivingroller 41 b of the firsttransport roller pair 41 in the transport direction (the left and right direction). - Next, the
flapper 46, which is an example of a path switch-over member switching over the transport path of the continuous paper S and the cut paper CS, will be described based onFIGS. 7 and 8A and 8B. - As shown in
FIGS. 7 , 8A and 8B, theflapper 46 includes afirst guide 61 of an approximately rectangular plate shape when viewed from the plane, and asecond guide 62 of an approximately rectangular plate shape when viewed from the plane disposed so as to be overlap with the upper part of the vertical direction of thefirst guide 61. The length in the width direction (the front and rear direction) in thefirst guide 61 intersecting the transport direction of the continuous paper S and the cut paper CS is shorter than the length of the width direction in thesecond guide 62. Furthermore, thefirst guide 61 is formed so that the length along the transport direction (the left and right direction) of the continuous paper S and the cut paper CS in thefirst guide 61 is greater than the length of the transport direction (the left and right direction) in thesecond guide 62. That is, the end portion of the downstream side of the transport direction of thefirst guide 61 is extended toward the downstream side of the transport direction (toward the left side) further than the end portion of the downstream side of the transport direction of thesecond guide 62. - As shown in
FIG. 8A , in thesecond guide 62, the end portion of the upstream side of the transport direction comes into contact with the end portion of the upstream side of the transport direction in thefirst guide 61 in the state in which the tip thereof is aligned. Furthermore, thesecond guide 62 is disposed with respect to thefirst guide 61 so as to become a position state in which a space portion AS is formed between the end portion of the downstream side of the transport direction in thesecond guide 62 and the end portion of the downstream side of the transport direction in thefirst guide 61. That is, thesecond guide 62 is disposed so as to sloped upward to thefirst guide 61 so that, as thesecond guide 62 goes toward the downstream side of the transport direction, the gap between thesecond guide 62 and thefirst guide 61, that is, the space portion AS formed between thesecond guide 62 and thefirst guide 61 is increased. Moreover, the respective end portions of the upstream side of the transport direction in the first fixingreversal guide 44 and the first fixingtransport guide 144 are inserted and positioned in the space portion AS formed between thefirst guide 61 and thesecond guide 62. That is, the end portion of the downstream side of the transport direction in thesecond guide 62 is disposed so as to overlap in the thickness direction of the continuous paper S to be transported along the transport path from the upper side by being situated at the upper side of the vertical direction with respect to the end portion of the upstream side of the transport direction in the first fixingreversal guide 44. Furthermore, the end portion of the downstream side of the transport direction in thefirst guide 61 is disposed so as to overlap in the thickness direction of the cut paper CS to be transported along the transport path from the lower side by being situated at the lower side of the vertical direction with respect to the end portion of the upstream side of the transport direction in the first fixingreversal guide 44. - Furthermore, as shown in
FIG. 7 , in the respective end portions of the upstream side of the transport direction in thefirst guide 61 and thesecond guide 62, rectangularconcave portions first guide 61 and thesecond guide 62, in the plurality of positions where the drivingroller 41 b and the drivenroller 41 d of the firsttransport roller pair 41 correspond to the continuous paper S and the cut paper CS in the width direction, theconcave portions roller 41 b and the drivenroller 41 d are formed, respectively. In other words, in the respective end portions of the upstream side of the transport direction in thefirst guide 61 and thesecond guide 62, a plurality of rectangularconvex portions roller 41 b and the drivenroller 41 d are disposed in the width direction of the continuous paper S and the cut paper CS. - Moreover, as shown in
FIG. 8A , theconvex portions rotation shaft 41 c so as to overlap with the drivenroller 41 d of the firsttransport roller pair 41 in the transport direction (the left and right direction). Meanwhile, the respective end portions of the downstream side of the transport direction in thefirst guide 61 and thesecond guide 62 are formed so as to be extended in a linear shape along the width direction (the left and right direction) intersecting the transport direction of the continuous paper S and the cut paper CS. - Furthermore, as shown in
FIGS. 7 , 8A and 8B, thesecond guide 62 is supported on an upper end of anarm 63 formed in an approximately L shape when viewed from the front which is bent toward the left side in the position of the downstream side of the transport direction of thesecond guide 62. In the left end side of thearm 63, the respective one end sides of the twoshafts arm 63 are fixed so as to be the position where theshaft 64 a is separated from the bent portion of thearm 63 further than theshaft 64 b. Moreover, in the other end sides of the twoshafts oscillation mechanism 65 for oscillating theflapper 46 is provided. Theoscillation mechanism 65 oscillates theflapper 46 between the long position where the upper surface of thesecond guide 62 is lower than the transport path surface (the upper surface) 37 a of the first fixingintroduction guide 37 of theintroduction portion 35 as shown inFIG. 8A and the short position where the lower surface of thefirst guide surface 61 is higher than the transport path surface 38 a (the lower surface) of the secondfixing introduction guide 38 of theintroduction portion 35 as shown inFIG. 8B . - As shown in
FIGS. 9A and 9B , theoscillation mechanism 65 includes aplate 66 formed in a plate shape, and acam member 67 coming into contact with theplate 66. Furthermore, thecam member 67 is connected to the output shaft of thesecond cam motor 68 driving and rotating thecam member 67 in the power transmissible manner. That is, thecam member 67 is rotated around therotation shaft 67 a along with the driving of the second cam motor. - In the bent portion bent at an obtuse angle in the approximate center of the
plate 66, the other end side of theshaft 64 b with one end side fixed to thearm 63 is rotatably supported. Furthermore, in the left end of theplate 66, similarly, the other side of theshaft 64 a with the one end side fixed to thearm 63 is fixed. Furthermore, more to the right side than the bent portion by which theshaft 64 b is supported in theplate 66, a flat plate-shapedconvex portion 66 a is protruded from the upper end toward the rear side (that is, the rear side of the vertical direction to the plate 66). Moreover, the outer periphery surface of thecam member 67 comes into contact with theconvex portion 66 a from the lower side. - Thus, when the
second cam motor 68 is driven in the forward direction in the state shown inFIG. 9A , thecam member 67 is rotated in the clockwise direction inFIG. 9A by about 90°. Then, as shown inFIG. 9B , theplate 66 is rotated around theshaft 64 b in the clockwise direction inFIG. 9B along with the rotation of thecam member 67, whereby theflapper 46 is oscillated around theshaft 64 b as the rotation center in the clockwise direction inFIG. 9B , and the end portion of the upstream side of the transport direction of theflapper 46 is moved upward. As shown inFIG. 8B , the end portion of the upstream side of the transport direction of theflapper 46 situated at the short position is situated at the upper part of the vertical direction further than the end portion of the downstream side of the transport direction of the secondfixing introduction guide 38. Moreover, theflapper 46 blocks the inlet to the reversal path in the upstream side of the transport direction of the reversal transport portion 36 (seeFIG. 10 ). - Furthermore, when the
second cam motor 68 is driven in the backward direction from the state shown inFIG. 9B , thecam member 67 is rotated around therotation shaft 67 a in the counterclockwise direction inFIG. 9B by about 90°. Then, theplate 66 is rotated around theshaft 64 b in the counterclockwise direction inFIG. 9B and returns to the position shown inFIG. 9A , and theflapper 46 is oscillated around theshaft 64 b in the counterclockwise direction inFIG. 9A according to the rotation of theplate 66 and returns to the position shown inFIG. 9A . As shown inFIG. 8A , the end portion of the upstream side of the transport direction of theflapper 46 situated at the long position as shown inFIG. 8A is situated more at the lower portion of the vertical direction than the end portion of the downstream side of the transport direction of the first fixingintroduction guide 37. Moreover, theflapper 46 blocks the inlet to the transport path in the upstream side of the transport direction of the transport portion 136 (seeFIG. 11 ). - Next, the action of the
printer 11 configured as above will be described based onFIGS. 10 and 11 . - Firstly, a case will be described where the relatively short cut paper CS is cut from the recorded continuous paper S. In addition, at this time, the respective driven
rollers 41 d to 43 d in the first to third roller pairs 41 to 43 are situated at the pinched position, and theflapper 46 is situated at the short position shown inFIGS. 8B and 9B . - Incidentally, for example, when the short cut paper CS is selected as the paper to be cut and transported after recording in the
printer 11 and the recording processing is started, thesecond cam motor 68 of thetransport apparatus 27 is driven for the forward rotation based on the selected information. Then, theflapper 46 in thetransport apparatus 27 is oscillated (displaced) from the long position which is also the standby position to the short position (seeFIG. 8B ) which is also the oscillation position. In addition, the respective drivenrollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are still situated at the pinched position. Moreover, the continuous paper S is unwound from the unwindingportion 13 and is transported from the upstream side of the transport direction to the downstream side. Next, when the continuous paper S passes through the lower portion of therecording head 19 in therecording portion 17, ink is ejected from therecording head 19 to the continuous paper S, whereby the surface of the continuous paper S is recorded. - When the continuous paper S with the ink attached thereto is transported to the further downstream side and passes through the lower portion of the
cutter 21, the continuous paper S is cut into the short cut paper CS by thecutter 21. Herein, the curl of the short cut paper CS is corrected (decurled) by being provided with the pinching force from thedecurl roller 25. In addition, the cut paper CS is transported to thetransport apparatus 27. - As shown in
FIG. 10 , the short cut paper CS, in which the curl is corrected and which is transported into thetransport apparatus 27, is transported to the firsttransport roller pair 41 while coming into sliding-contact with the transport path surface 37 a of the first fixingintroduction guide 37 in theintroduction portion 35. At this time, the drivenroller 41 d of the firsttransport roller pair 41 is situated at the pinched position. For that reason, in the state in which the cut paper CS passing through the firsttransport roller pair 41 is pinched by the firsttransport roller pair 41, along with the movement of the downstream side (the left side) of the transport direction of the continuous paper S based on the driving rotation of the drivingroller 41 b, the drivenroller 41 d is subjected to the driven rotation, whereby the transport force from the firsttransport roller pair 41 is given to the continuous paper S. Moreover, the cut paper CS is further transported to the downstream side. - When the relatively short cut paper CS is transported, since the
flapper 46 is situated at the short position which is also the oscillation position, the inlet to the reversal path in thereversal transport portion 36 is blocked by theflapper 46 in the position of the upstream side of the transport direction. For that reason, it is suppressed that the short cut paper CS passed through the firsttransport roller pair 41 is brought into the reversal path of thereversal transport portion 36 by theflapper 46. Moreover, the short cut paper CS is transported to the left side while the recorded surface comes into sliding-contact with the lower surface of thefirst guide 61 in theflapper 46. That is, the lower surface of thefirst guide 61 is the transport path surface through which the cut paper CS is transported. - The short cut paper CS sliding on the lower surface of the
first guide 61 is transported while the recorded surface is pressed against the lower surface of thefirst guide 61 by the transport force given from the firsttransport roller pair 41. For that reason, force is applied from the end portion of the downstream side of the transport direction in thefirst guide 61 to the recorded surface of the short cut paper CS. Herein, if the end portion of the downstream side of the transport direction in thefirst guide 61 is formed in a comb shape, there is a concern that the recording performed on the surface of the cut paper CS is disturbed by the comb-shaped end portion, and a sliding contact trace of the comb-shaped end portion is formed on the surface of the cut paper CS. - However, in the present embodiment, the end portion of the downstream side of the transport direction in the
first guide 61 is formed so as to be extended in the linear shape along the width direction of the cut paper CS. For that reason, the force from the end portion of the downstream side of the transport direction in thefirst guide 61 is uniformly applied to the cut paper CS passing through the end portion along the width direction. Moreover, even if the cut paper CS passing through the end portion of the downstream side of the transport direction in thefirst guide 61 is transported while being pressed against thefirst guide 61, the recording performed on the surface is not disturbed and the sliding contact trace is not formed in the end portion of the downstream side of the transport direction in thefirst guide 61. - Moreover, the short cut paper CS passed through the end portion of the downstream side of the transport direction in the
first guide 61 is transported to the further downstream side (the left side inFIG. 10 ) and slides on the lower surface of the first fixingtransport guide 144 in thetransport portion 136. - Herein, the end portion of the upstream side of the transport direction in the first fixing
transport guide 144 overlaps with the end portion of the downstream side of the transport direction in thefirst guide 61 in the thickness direction (the up and down direction) of the cut paper CS, and is situated at the upper side further than the end portion of the downstream side of the transport direction in thefirst guide 61. That is, the end portion of the upstream side of the transport direction in the first fixingtransport guide 144 is provided without providing a gap in the transport direction between it and the end portion of the downstream side of the transport direction in thefirst guide 61. Moreover, the cut paper CS is smoothly transported to the downstream side so that the tip (the end portion of the downstream side of the transport direction) in the transport direction is not caught by the end portion of the upstream side of the transport direction in the first fixingtransport guide 144 disposed adjacent to the downstream side of the transport direction of theflapper 46. - Moreover, after the short cut paper CS is further transported toward the downstream side (the left side in
FIG. 10 ) of the transport direction in which the recorded surface faces upward, the short cut paper CS is discharged from theshort outlet 34 to the outside of thecase 31. - Next, a case will be described where the relatively long cut paper CS is cut and transported from the recorded continuous paper S (the long recording medium). At this time, the respective driven
rollers 41 d to 43 d in the first to third transport roller pairs 41 to 43 are situated at the pinched position, and theflapper 46 is situated at the long position that is also the standby position. - Incidentally, for example, when the long cut paper CS is selected as the paper, which is cut and transported after the recording in the
printer 11, and the recording processing is started, thefirst cam motor 53 of thetransport apparatus 27 is subjected to the forward rotation driving based on the selected information. Then, the respective drivenrollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 in thetransport apparatus 27 are moved to the separated position. In addition, theflapper 46 is still situated at the long position that is also the standby position. Moreover, the continuous paper S is unwound from the unwindingportion 13 and is transported from the upstream side of the transport direction to the downstream side. Next, when the continuous paper S passes through the lower portion of therecording head 19 in therecording portion 17, ink is ejected from therecording head 19 to the surface of the continuous paper S, whereby the surface of the continuous paper S is recorded. - Even after the tip (the end portion of the downstream side of the transport direction) in the transport direction of the continuous paper S passes through the lower portion of the
recording head 19, the continuous paper S is further transported to the downstream side while continuously recording the upstream side part of the continuous paper S by therecording head 19, and the tip passes through the lower portion of thecutter 21. Moreover, the tip of the continuous paper S passed through thecutter 21 is further transported and passes through thecurl correction portion 22. Herein, since the continuous paper S is continuously recorded by therecording head 19 in the upstream side part, the pinching force is not given to the continuous paper S from thedecurl roller 25. Moreover, the continuous paper S is transported to thetransport apparatus 27 in the curled state without correcting the curl. - As shown in
FIG. 11 , the continuous paper S, in which the tip is transported into thetransport apparatus 27 in the state of being continuously recorded by therecording head 19 in the upstream side part, is transported to the firsttransport roller pair 41 while coming into sliding-contact with the transport path surface 38 a in the secondfixing introduction guide 38 in theintroduction portion 35. Moreover, when the tip of the continuous paper S passes through the firsttransport roller pair 41, the continuous paper S comes into contact with the drivingroller 41 b, whereby the transport force is given from the drivingroller 41 b to the continuous paper S. Meanwhile, the drivenroller 41 d of the firsttransport roller pair 41 is situated at the separated position where the outer peripheral surface of the drivenroller 41 d is lower than the transport path surface 37 a in the first fixingintroduction guide 37. For that reason, the continuous paper S passing through the firsttransport roller pair 41 does not come into contact with the drivenroller 41 d. Moreover, the continuous paper S, which is continuously recorded by therecording head 19 in the upstream side part, is further transported to the downstream side without the transport load applied from the drivenroller 41 d of the firsttransport roller pair 41. - When the continuous paper S is transported, since the
flapper 46 is situated at the long position that is also the standby position, the inlet to the transport path in thetransport portion 136 is blocked by theflapper 46 in the position of the upstream side of the transport direction. For that reason, it is suppressed that the continuous paper S passed through the firsttransport roller pair 41 is brought into the short transport path of thetransport portion 136 by theflapper 46. Moreover, the continuous paper S is transported onto thesecond guide 62 of theflapper 46 in the state where the recorded surface faces upward. - The continuous paper S transported onto the
second guide 62 of theflapper 46 is further transported to the downstream side (the left oblique upper part ofFIG. 11 ) while sliding on the upper surface of thesecond guide 62. That is, the upper surface of thesecond guide 62 is the transport path surface through which the continuous paper S is transported. Moreover, the continuous paper S is transported from the upper surface of thesecond guide 62 onto the transport path surface 44 a of the first fixingreversal guide 44. - Herein, the end portion of the upstream side of the transport direction in the first
reversal transport guide 44 overlaps with the end portion of the downstream side of the transport direction in thesecond guide 62 in the thickness direction (the up and down direction) of the continuous paper S, and is situated at the lower side further than the end portion of the downstream side of the transport direction in thesecond guide 62. That is, the end portion of the upstream side of the transport direction in the first fixingreversal guide 44 is provided without providing a gap in the transport direction between it and the end portion of the downstream side of the transport direction in thesecond guide 62. Moreover, the continuous paper S is smoothly transported from the upper surface of thesecond guide 62 onto the transport path surface 44 a of the first fixingreversal guide 44 so that the tip (the end portion of the downstream side of the transport direction) in the transport direction is not caught by the end portion of the upstream side of the transport direction in the first fixingreversal guide 44 disposed adjacent to the downstream side of the transport direction of theflapper 46. - Furthermore, since the reversal path has a strong bent, the continuous paper S is transported while being pressed against the upper surface of the
second guide 62 of theflapper 46 situated at the outer peripheral side (the left side inFIG. 11 ) in thereversal transport portion 36 and the transport path surface 44 a of the first fixingreversal guide 44. For that reason, force is applied from the end portion of the downstream side of the transport direction in thesecond guide 62 to the continuous paper S passing through the end portion of thesecond guide 62. Herein, if the end portion of the downstream side of the transport direction in thesecond guide 62 is formed in a comb shape, there is a concern that the sliding contact trace of the comb-shaped end portion is formed on the back surface of the continuous paper S. - However, in the present embodiment, the end portion of the downstream side of the transport direction in the
second guide 62 is formed so as to be extended in the linear shape along the width direction of the continuous paper S. For that reason, the force from the end portion of the downstream side of the transport direction in thesecond guide 62 is uniformly applied to the continuous paper S passing through the end portion along the width direction. Moreover, even if the continuous paper S passing through the end portion of the downstream side of the transport direction in thesecond guide 62 is transported while being pressed against thesecond guide 62, the sliding contact trace is not formed in the end portion of the downstream side of the transport direction in thesecond guide 62. - Next, the continuous paper S is further transported to the downstream side while sliding on the transport path surface 44 a of the first fixing
reversal guide 44. Moreover, the continuous paper S coming into contact with the drivingroller 42 b disposed in the first fixingreversal guide 44 side upon passing through the secondtransport roller pair 42, whereby the transport force is given from the drivingroller 42 b to the continuous paper S. Meanwhile, the drivenroller 42 d of the secondtransport roller pair 42 is situated at the separated position where the outer peripheral surface of the drivenroller 42 d is the right side further than thetransport path 54 a in the secondfixing reversal guide 45. For that reason, the continuous paper S passing through the secondtransport roller pair 42 does not come into contact with the drivenroller 42 d. Moreover, the continuous paper S, which is continuously recorded by therecording head 19 in the upstream side part, is further transported to the downstream side without even the transport load applied from the drivenroller 42 d of the secondtransport roller pair 42 in addition to the drivenroller 41 d of the firsttransport roller pair 41. - The recorded surface of the continuous paper S, in which the tip of the transport direction passes through the second
transport roller pair 42 and is transported to the downstream side while sliding on the transport path surface 44 a of the first fixingreversal guide 44, faces downward by being reversed. Then, the continuous paper S slides on the transport path surface 45 a of the secondfixing reversal guide 45 by receiving gravity in the vicinity of the upstream side of the transport direction of the thirdtransport roller pair 43. - Moreover, the continuous paper S comes into contact with the driving
roller 43 b disposed in the secondfixing reversal guide 45 side upon passing though the thirdtransport roller pair 43, whereby the transport force is given from the drivingroller 43 b to the continuous paper S. Meanwhile, the drivenroller 43 d of the thirdtransport roller pair 43 is situated at the separated position where the outer peripheral surface of the drivenroller 43 d is the upper side further than the transport path surface 44 a in the first fixingreversal guide 44. For that reason, the continuous paper S passing through the thirdtransport roller pair 43 does not come into contact with the drivenroller 43 d. Moreover, the continuous paper S, which is continuously recorded by therecording head 19 in the upstream side part, is further transported to the downstream side without even the transport load applied from the drivenroller 43 d of the thirdtransport roller pair 43 in addition to the drivenrollers - Furthermore, since the
respective driving rollers 41 b to 43 b of the first to third transport roller pairs 41 to 43 are formed by a metallic material having a relatively low frictional coefficient or the like, the transport force is given to the continuous paper S based on the frictional resistance, but the frictional resistance is extremely small, and the transport load is not added. The continuous paper S, which passes thereversal transport portion 36 and in which the front and the back are reversed, is discharged from thelong outlet 33 toward theupper surface 12 b of themain body case 12 in the state where the recorded surface faces downward. - Furthermore, the continuous paper S, in which the recording by the
recording head 19 is finished in the upstream side part, is cut by thecutter 21 and becomes the relatively long cut paper CS. When cutting the continuous paper S by thecutter 21, thefirst cam motor 53 of thetransport apparatus 27 is subjected to the backward rotation driving, and the respective drivenrollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are moved from the separated position to the pinched position. Moreover, the long cut paper CS enters the state of being pinched by the first to third transport roller pairs 41 to 43 (seeFIG. 2 ). - After that, the long cut paper CS is moved to the downstream side of the transport direction based on the driving rotation of the
respective driving rollers 41 b to 43 b, and in this connection, the respective paired counterpart drivenrollers 41 d to 43 d are subjected to the driven rotation, whereby the transport force is given from the first to third transport roller pairs 41 to 43 to the long cut paper CS. Moreover, the long cut paper CS is transported until the cut rear end portion (the end portion of the upstream side of the transport direction) of the cut paper CS is discharged to the outside of thecase 31 of thetransport apparatus 27. - According to the above embodiment, the following effects can be obtained.
- (1) When the continuous paper S as the long recording medium is transported within the transport path in which the first to third transport roller pairs 41 to 43 are disposed, the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S. That is, in the case of the continuous paper S in which the length dimension along the transport direction is longer than the distance dimension between the position where the first
transport roller pair 41 is disposed and the recording position of the upstream side from that position, the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S, whereby the transport load applied to the continuous paper S by the first to third transport roller pairs 41 to 43 is smaller than the case of the pinched state. Thus, the transport load relative to the continuous paper S passing through the transport path is suppressed. As a result, for example, when the continuous paper S passes between therespective driving rollers 41 b to 43 b of the first to third transport roller pairs 41 to 43 and the respective paired counterpart drivenrollers 41 d to 43 d, even in a case where the recording is concurrently performed on the upstream side part in the continuous paper S in the recording position, it is possible to contribute to the suppression of a decline in recording quality. - (2) When the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S, the first to third transport roller pairs 41 to 43 may move the respective driven
rollers 41 d to 43 d in a direction perpendicular to the axial direction of therespective rotation shafts 41 c to 43 c that is a direction separated from the transport direction of the continuous paper S. Thus, it is possible to easily realize the configuration of thetransport apparatus 27 capable of suppressing the transport load. - In the first to third transport roller pairs 41 to 43, the respective paired counterpart driven
rollers 41 d to 43 d are more easily moved to the direction intersecting the axial direction of therespective rotation shafts 41 c to 43 c than therespective driving rollers 41 b to 43 b. For that reason, it is possible to easily configure the first to third transport roller pairs 41 to 43 enter the non-pinched state with respect to the continuous paper S. Thus, it is possible to easily realize thetransport apparatus 27 capable of suppressing the transport load that is added to the continuous paper S to be transported in this manner. - (4) The respective driven
rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 are formed of a material having the frictional coefficient higher than the respective pairedcounterpart driving rollers 41 b to 43 b. For that reason, in the pinched state where the respective drivenrollers 41 d to 43 d pinch the cut paper CS between the same and the respective pairedcounterpart driving rollers 41 b to 43 b, the sufficient transport force can be given to the cut paper CS to be transported. Thus, thetransport apparatus 27 can be compatible with the function of suppressing the transport load to be added to the continuous paper S upon transporting the continuous paper S and the function of giving the necessary transport force to the cut paper CS upon transporting the cut paper CS. - (5)
Flapper 46 is disposed such that the end portion of the downstream side of the transport direction overlaps with the respective end portions of the upstream side of the transport direction of the first fixingreversal guide 44 and the first fixingtransport guide 144 in the thickness direction of the continuous paper S and the cut paper CS to be transported. For that reason, it is possible to dispose theflapper 46, the first fixingreversal guide 44 and the first fixingtransport guide 144, which are adjacently disposed in the respective transport directions of the continuous paper S and the cut paper CS, along the respective transport paths without providing unnecessary space between both members in the respective transport directions. Thus, even when theflapper 46 is included in the middle of the transport path in a displaceable manner, it is possible to suppress an increase in size of the apparatus in the transport direction and the transport defect of the continuous paper S and the cut paper CS. - (6) The
flapper 46 has a space portion AS, into which the end portions of the upstream side of the transport direction of the first fixingreversal guide 44 and the first fixingtransport guide 144 can be inserted, in the end portion of the downstream side of the transport direction. For that reason, it is possible to smoothly transport the continuous paper S and the cut paper CS, in which the transport direction is switched over in the switch-over position by theflapper 46, without being caught by the end portions of the upstream side of the transport direction of the first fixingreversal guide 44 and the first fixingtransport guide 144 disposed adjacent to the downstream side of theflapper 46. - (7) Owing to the simple configuration in which both guides are integrated so that the space portion AS, into which the respective end portions of the upstream side of the transport direction in the first fixing
reversal guide 44 and the first fixingtransport guide 144 disposed adjacent to the downstream side of theflapper 46 can be inserted, is formed between the end portions of the downstream side of the transport direction of the first guide and the second guide forming the plate shape, it is possible to suppress an increase in size of thetransport apparatus 27 and the transport defect of the continuous paper S and the cut paper CS. - (8) The respective end portions of the downstream side of the transport direction in the
first guide 61 and thesecond guide 62 of theflapper 46 are formed so as to be extended in a linear shape along the width direction. For that reason, when the continuous paper S and the cut paper CS are transported while coming into contact with the end portions of the downstream side of the transport direction in thefirst guide 61 and thesecond guide 62, force from the respective end portions of the downstream side of the transport direction in thefirst guide 61 and thesecond guide 62 is uniformly applied to the continuous paper S and the cut paper CS in the width direction intersecting the transport direction of the continuous paper S and the cut paper CS. Thus, it is possible to suppress that the slid-trace is formed on the surfaces in the continuous paper S and the cut paper CS which come into sliding-contact with the end portions of the downstream side of the transport direction of thefirst guide 61 and thesecond guide 62. - (9) When the driven
roller 41 d of the firsttransport roller pair 41 is moved to the separated position, the drivenroller 41 d is moved to the position where the outer peripheral surface of the drivenroller 41 d is lower than the transport path surface 37 a in the first fixingintroduction guide 37. For that reason, the continuous paper S passing through the firsttransport roller pair 41 does not come into contact with the drivenroller 41 d. Thus, the firsttransport roller pair 41 can further transport the continuous paper S, which is continuously recorded by therecording head 19 in the upstream side part, to the downstream side without the transport load applied from the drivenroller 41 d of the firsttransport roller pair 41. As a result, for example, when the continuous paper S passes between the drivingroller 41 b and the drivingroller 41 d of the firsttransport roller pair 41, even in a case where the recording in the recording position is continuously performed in the upstream side part in the continuous paper S, it is possible to contribute to the suppression of decline in recording quality. - In addition, the embodiment mentioned above may be changed as below.
- The recording medium may be, for example, a continuous film, a cut film or the like, without being limited to the continuous paper S or the cut paper CS. Furthermore, the recording medium to be discharged from the
short outlet 34 may use a single sheet paper without being limited to the cut paper CS formed by cutting the continuous paper S during transportation. - The
respective driving rollers 41 b to 43 b and the respective drivenrollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 may be, for example, rollers which form a long cylindrical shape extended in therespective driving shafts 41 a to 43 a and therespective rotations shafts 41 c to 43 c, without being limited to toe rollers which are divided into a plurality of rollers in the axial direction of therespective driving shafts 41 a to 43 a and therespective rotations shafts 41 c to 43 c. Furthermore, in that case, in the end portions of the downstream side of the transport direction in the first fixingintroduction guide 37 ad the secondfixing introduction guide 38 and the end portions of the end portion of the upstream side of the transport direction in thefirst guide 61 and thesecond guide 62 in theflapper 46, the respectiveconvex portions - The respective outer peripheral surfaces of the
respective driving rollers 41 b to 43 b in the first to third transport roller pairs 41 to 43 may not be formed of a material having the frictional coefficient higher than those of the respective outer peripheral surfaces in the respective pairedcounterpart driving rollers 41 b to 43 b. However, in that case, it is desirable that the pinched force of therespective driving rollers 41 b to 43 b and the respective drivenrollers 41 d to 43 d relative to the cut paper CS in the first to third transport roller pairs 41 to 43 be strong, and the respective drivenrollers 41 d to 43 d do not idle upon pinching the cut paper CS. - The first to third transport roller pairs 41 to 43 may be configured so that the
respective driving rollers 41 b to 43 b are moved away from the respective paired counterpart drivenrollers 41 d to 43 d without being limited to the movement of the respective drivenrollers 41 d to 43 d from the respective pairedcounterpart driving rollers 41 b to 43 b. Furthermore, the first to third transport roller pairs 41 to 43 may be configured so that both of the rollers are moved in a direction away from each other without being limited to the separation of one of that paired counterpart rollers from the other thereto. In addition, the first to third transport roller pairs 41 to 43 may be configured so that the driving rollers are paired without being limited to one in which the driving roller and the driven roller form the pair. - The respective driven
rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43 may not be moved until the outer peripheral surfaces of the respective drivenrollers 41 d to 43 d are situated outside the transport path further than the transport path surfaces 37 a, 44 a, and 45 a of the first fixingintroduction guide 37, the first fixingreversal guide 44, and the secondfixing reversal guide 45, which are situated on the side where the respective drivenrollers 41 d to 43 d are disposed. However, in that case, it is desirable that the respective drivenrollers 41 d to 43 d be formed of a member having the relatively low frictional coefficient relative to the cut paper CS. - The respective driven
rollers 41 d to 43 d of the first to third transport roller pairs 41 to 43, for example, may be individually moved without being limited to the simultaneous movement (at the same timing). - The number of the transport roller pair disposed in the
transport apparatus 27 may be equal to or greater than three or more or equal to or less than three. - The first
transport roller pair 41 may not be provided between the first fixingintroduction guide 37 and theflapper 46. In that case, it is desirable that the plurality ofconvex portions 61 b in the comb-shaped end portion of the upstream side of the transport direction of theflapper 46 meshes with the plurality ofconcave portions flapper 46, the first fixingreversal guide 44 and the first fixingtransport guide 144 of the downstream side adjacently disposed in the transport direction of the continuous paper S and the cut paper CS as well as between theflapper 46 and the first and secondfixing introduction guide flapper 46 is provided in the middle of the transport path in a freely displaceable manner, it is possible to further suppress an increase in size of the apparatus in the transport direction. - The
flapper 46 may be, for example, an approximately triangular-shaped prism or the like when viewed from the cross-section in which an approximately rectangular, triangular or arc-shaped concave portion or the like when viewed from the cross-section are recessed in the lower side portion becoming the downstream side of the transport direction along the transport direction, without being limited to that formed by two sheets of plate-likefirst guide 61 and thesecond guide 62. - In the embodiment described above, although the recording apparatus was embodied to the ink
jet type printer 11, the recording apparatus may be embodied to a FAX device, a copy device or a multifunction machine including a plurality of functions or the like without being limited to the printer. Furthermore, in the ink jet type printer, a recording apparatus ejecting or discharging liquid other than ink may also be adopted. Furthermore, the recording apparatus can be applied to various liquid ejecting apparatus that includes a liquid ejecting head or the like for ejecting small amount of liquid droplet. In this case, the liquid droplet refers to the state of liquid to be ejected from the recording apparatus and also include one which leaves traces in a granular shape, a tear shape, a thread shape. Furthermore, liquid may be a material that can be ejected by the recording apparatus. For example, the material may be one in which the substance is the state of the liquid phase, and the material includes a liquid body having high or low viscosity, sol, gel water, other inorganic solvent, organic solvent, solution, liquid phase resin, a flow-shaped body such as a liquid phase metal (metallic melt), liquid as one state of substance, as well as one in which particles of a functional material formed of solid body such as pigment or metallic particles are dissolved, dispersed or mixed in the solvent. Furthermore, a typical example of liquid includes ink as described in the embodiment described above, a liquid crystal or the like. Herein, ink includes various ink compositions such as a general water-based ink, an oil-based ink, a gel ink, and a hot-melt ink. Specific examples of the liquid ejecting apparatus may be, for example, a recording apparatus for ejecting liquid which includes the material such as an electrode material or a color material to be used in manufacturing a liquid crystal display, an EL (electroluminescence) display, a plane emission display, a color filter, or the like in the form of the dispersion or the dissolution; a recording apparatus that ejects a bio organic matter to be used in manufacturing a bio chip; a recording apparatus which is used as a precision pipette and ejects liquid becoming a sample; a printing apparatus; a micro dispenser or the like. Furthermore, it may be possible to adopt a recording apparatus which ejects a lubricant oil to precision machine such as a watch or a camera by a pinpoint, a recording apparatus which ejects a transparent resin liquid such as an ultraviolet-curing resin onto the substrate so as to form a micro hemispherical lens (an optical lens) to be used in an optical communication element or the like, and a recording apparatus which ejects an etching liquid such as acid or alkaline so as to etch the substrate or the like. Moreover, it is possible to apply the invention to any kind of recording apparatus of them.
Claims (5)
1. A transport apparatus that transports a recording medium from an upstream side of a transport path to a downstream side thereof, comprising:
a transport roller pair which is disposed at a position more on a downstream side than a recording position where the recording medium is recorded in the transport path, at least one of a roller situated at one surface side of the recording medium and a roller situated at the other surface side thereof comes into contact with the recording medium passing through the position and is rotated, whereby the transport roller pair transports the recording medium along the transport path,
wherein, when the recording medium passes through between both rollers, in a case where a length dimension along the transport direction of the recording medium is longer than a distance dimension between a position where the transport roller pair is disposed and the recording position more on the upstream side than the position, both rollers do not pinch a long recording medium.
2. The transport apparatus according to claim 1 ,
wherein, when both rollers enter the non-pinched state, the transport roller pair is moved in a direction that is a direction in which at least one roller intersects an axial direction of the roller, and is separated from the transport path.
3. The transport apparatus according to claim 1 ,
wherein the transport roller pair includes a driving roller which comes into contact with one surface side in the recording medium and is subjected to driving rotation, and a driven roller which comes into contact with the other surface side in the recording medium to be transported along with the driving rotation of the driving roller and is subjected to driven rotation, and when the driven roller transports the long recording medium, the transport roller pair is moved in the direction separated from the driving roller.
4. The transport apparatus according to claim 3 ,
wherein a roller surface of the driven roller is formed by a member that has a frictional coefficient higher than that of a roller surface in the driving roller.
5. A recording apparatus comprising:
a recording unit that records a recording medium to be transported from an upstream side of a transport path to a downstream side thereof; and
the transport apparatus of claim 1 that transports the recording medium recorded by the recording unit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-188278 | 2010-08-25 | ||
JP2010188278A JP5573494B2 (en) | 2010-08-25 | 2010-08-25 | Conveying apparatus and recording apparatus |
Publications (1)
Publication Number | Publication Date |
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US20120048908A1 true US20120048908A1 (en) | 2012-03-01 |
Family
ID=45695784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/204,053 Abandoned US20120048908A1 (en) | 2010-08-25 | 2011-08-05 | Transport apparatus and recording apparatus |
Country Status (3)
Country | Link |
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US (1) | US20120048908A1 (en) |
JP (1) | JP5573494B2 (en) |
CN (1) | CN102416779B (en) |
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JP2006242985A (en) * | 2005-02-28 | 2006-09-14 | Fuji Photo Film Co Ltd | Image recorder and photosensitive material carrying method |
JP2007137583A (en) * | 2005-11-17 | 2007-06-07 | Noritsu Koki Co Ltd | Image forming device |
JP2007079596A (en) * | 2006-10-31 | 2007-03-29 | Konica Minolta Holdings Inc | Image forming apparatus |
JP2009179414A (en) * | 2008-01-29 | 2009-08-13 | Noritsu Koki Co Ltd | Printing device |
JP5158354B2 (en) * | 2008-03-10 | 2013-03-06 | セイコーエプソン株式会社 | Rolled recording material conveying apparatus and recording apparatus |
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2010
- 2010-08-25 JP JP2010188278A patent/JP5573494B2/en not_active Expired - Fee Related
-
2011
- 2011-08-05 US US13/204,053 patent/US20120048908A1/en not_active Abandoned
- 2011-08-23 CN CN201110250590.XA patent/CN102416779B/en not_active Expired - Fee Related
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US4555104A (en) * | 1983-09-30 | 1985-11-26 | Ncr Corporation | Overlapping document feed apparatus |
US20020104782A1 (en) * | 1996-05-17 | 2002-08-08 | Dewitt Robert R. | Method and apparatus for sorting and acquiring image data for documents |
US6308952B1 (en) * | 1998-01-27 | 2001-10-30 | Brother Kogyo Kabushiki Kaisha | Paper sheet discharge apparatus |
US7018034B2 (en) * | 2001-10-30 | 2006-03-28 | Hewlett-Packard Development Company, L.P. | Starwheel actuation timing for print media transport system and method |
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US7527371B2 (en) * | 2004-08-18 | 2009-05-05 | Canon Kabushiki Kaisha | Ink jet printing apparatus and method for controlling ink jet printing apparatus |
US20120062677A1 (en) * | 2010-09-14 | 2012-03-15 | Seiko Epson Corporation | Printing apparatus and printing method therefor |
Also Published As
Publication number | Publication date |
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JP2012046282A (en) | 2012-03-08 |
CN102416779B (en) | 2016-03-30 |
JP5573494B2 (en) | 2014-08-20 |
CN102416779A (en) | 2012-04-18 |
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AS | Assignment |
Owner name: SEIKO EPSON CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KAWAMOTO, MAKOTO;REEL/FRAME:026709/0897 Effective date: 20110715 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |