CN102896914B - Recording medium carrier device, image forming apparatus and ink-jet recording apparatus - Google Patents
Recording medium carrier device, image forming apparatus and ink-jet recording apparatus Download PDFInfo
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- CN102896914B CN102896914B CN201210265046.7A CN201210265046A CN102896914B CN 102896914 B CN102896914 B CN 102896914B CN 201210265046 A CN201210265046 A CN 201210265046A CN 102896914 B CN102896914 B CN 102896914B
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- endless belt
- recording medium
- scale portion
- initial position
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Classifications
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- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/007—Conveyor belts or like feeding devices
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- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
Landscapes
- Ink Jet (AREA)
- Handling Of Sheets (AREA)
Abstract
The present invention relates to a recording medium carrier device, an image forming apparatus and an ink-jet recording apparatus. The detection section of the recording medium carrier device comprises a base, a scale section, a switching section and a driver. The driver comprises a drive source, a transmission mechanism for transmitting power of the drive source to the scale section, and a release section for releasing power transmission between the drive source and the transmission mechanism. If the switching section enables the endless belt and the scale section to be engaged, the release section releases the power transmission between the transmission mechanism and the drive source; and if the switching section enables the endless belt and the scale section to be disengaged, the release section stops the release of the power transmission between the transmission mechanism and the drive source.
Description
Technical field
The present invention relates to recording medium carrying device, image processing system and ink-jet recording apparatus.
Background technology
In the past, the image processing system of such as ink-jet recording apparatus etc. and so on was equipped with and sheet-shaped recording medium was positioned on endless belt and by making endless belt turn round the recording medium carrying device transporting aforementioned recording medium.In this recording medium carrying device, there will be a known following structure: encoder is set on the rotating shaft of driven roller driving endless belt, control computed carrier amount (such as with reference to Japanese Patent No. 4449924 publication) according to its umber of pulse.
But for aforementioned recording medium carrying device, probably can cause because of main causes such as the bias of encoder, the thickness deviations of endless belt can not Accurate Determining computed carrier amount.
Summary of the invention
Problem of the present invention is the computed carrier amount enabling aforementioned recording medium carrying device Accurate Determining recording medium.
At least one object to achieve these goals, the recording medium carrying device of reflection one aspect of the present invention has: endless belt, and it is placed with recording medium on surface, multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on, offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth, calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion, and control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated, and described offset detect portion has: base station, this endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt, measure the sensor part of the amount of movement in described scale portion, by making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging, and make described scale portion return the drive unit of described initial position from described assigned position, described drive unit has: drive source, for the power of described drive source being sent to the connecting gear in scale portion, remove the releasing portion that the power between described connecting gear and described drive source transmits, if described engaging switching part makes described endless belt and the engaging of described scale portion, then described releasing portion removes the power transmission between described connecting gear and described drive source, if described engaging switching part removes the engaging in described endless belt and described scale portion, then described releasing portion stops removing the power transmission between described connecting gear and described drive source.
At least one object to achieve these goals, the recording medium carrying device of reflection one aspect of the present invention has: endless belt, and it is placed with recording medium on surface, multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on, offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth, calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion, and control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated, and described offset detect portion has: rotating shaft, and its path becoming a part for described plane along described endless belt extends, base station, it is supported by axle in the mode of carrying out linkedly rotating with described rotating shaft, the axis of guide, it is arranged at the side contrary with described rotating shaft of described base station in the mode parallel with described rotating shaft, scale portion, it is followed described endless belt while being guided by the described axis of guide and slides, sensor part, it is installed on described base station can measure the amount of movement in described scale portion, rotary driving source, it makes described base station rotate centered by described rotating shaft, and drive unit, it makes described scale portion return described initial position from described assigned position, if described rotary driving source made described base station rotate to make described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described rotary driving source makes described base station rotate with the engaging removing described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position, described calculating part is based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculate the computed carrier amount of described recording medium.
At least one object to achieve these goals, the recording medium carrying device of reflection one aspect of the present invention, it is equipped on ink-jet recording apparatus, this ink-jet recording apparatus makes record head form image on the recording medium while sub scanning direction carries out scanning, described recording medium carrying device has: endless belt, and it is placed with recording medium on surface, multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on, offset detect portion, its initial position becoming the path of the part of described plane at described endless belt and compare described initial position and be in the downstream that is closer to this endless belt gyratory directions and be set at a distance of the distance of described initial position move back and forth freely between the assigned position of the record width of the single pass of described record head, and detect amount of movement when moving back and forth, calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion, and control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated, and described offset detect portion has: base station, this endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt, be installed on described base station the sensor part of the amount of movement in described scale portion can be measured, by making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging, and make described scale portion return the drive unit of described initial position from described assigned position, if described engaging switching part made described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described engaging switching part removes the engaging of described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position, described calculating part is based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculate the computed carrier amount of described recording medium.
The present invention can be understood better by detailed description shown below and accompanying drawing.But these illustrate and accompanying drawing does not limit the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the internal structure of the ink-jet recording apparatus representing present embodiment.
Fig. 2 is the stereogram of the schematic arrangement representing the offset detect portion that the ink-jet recording apparatus of Fig. 1 has.
Fig. 3 is the front view in the offset detect portion of Fig. 2.
Fig. 4 is the rearview in the offset detect portion of Fig. 2.
A part for the rear side in the offset detect portion of Fig. 2 is amplified the stereogram represented by Fig. 5.
Fig. 6 represents the mobility detect portion at Fig. 2, the stereogram of the state of scale portion and endless belt engaging.
Fig. 7 is the front view in the offset detect portion of Fig. 6.
A part for the rear side in the offset detect portion of Fig. 6 is amplified the stereogram represented by Fig. 8.
Fig. 9 represents the offset detect portion at Fig. 3, the front view of the state that the belt wheel of drive source and face side links by releasing portion.
Figure 10 is the block diagram of the main control structure of the ink-jet recording apparatus representing Fig. 1.
Figure 11 represents the offset detect portion at Fig. 6, the stereogram of the state of arrival assigned position, scale portion.
Figure 12 represents the offset detect portion at Figure 11, and the engaging of scale portion and endless belt is by the stereogram of state removed.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of for implementing optimal modality of the present invention.In the embodiment of the following stated, carried out preferred various restriction in order to implement the present invention at technical elements, but the scope of protection of present invention is not limited to following embodiment and illustrated example.
Fig. 1 is the skeleton diagram of the ink-jet recording apparatus as image processing system of the present invention.As shown in Figure 1, be provided with at ink-jet recording apparatus 1: transport the recording medium carrying device 2 of the recording medium P of sheet, on the recording medium P utilizing recording medium carrying device 2 to transport, form the image forming part 3 of image.
At image forming part 3, be configured with bar-shaped carriage rail 4 in the horizontal direction.On carriage rail 4, the balladeur train 5 utilizing not shown carriage driving mechanism to drive is supported freely moving back and forth on the direction (hereinafter referred to as main scanning direction) of carriage rail 4.
Recording medium P balladeur train 5 is equipped with downwards discharges the record head 6 of ink.Such as, balladeur train 5 is equipped with 8 or 16 record heads 6.Specifically, record head 6 when with the YMCK of yellow (Y), pinkish red (M), cyan (C), black (K) and light color be combined as one group, have 8 to be mounted on balladeur train 5.Or, when possessing two groups of combinations thereof, have 16 to be mounted on balladeur train 5.In addition, though the diagram of omission, be equipped with the secondary ink tank for stockpiling each color ink supplied to record head 6 at balladeur train 5, secondary ink tank links with each respectively with the ink tank connected inking pipe storing each color ink.Suitably ink is supplied from ink tank to secondary ink tank via inking pipe.
Record head 6 is configured to be discharged to carry out image formation to recording medium P by each color ink while main scanning direction carries out scanning matchingly with moving back and forth of the balladeur train 5 along carriage rail 4.In the present embodiment, now, record head 6 is set to carry out discharging ink respectively to carry out ink mist recording when scanner uni scans to direction, loop in its yearning direction, road.
Recording medium carrying device 2 is configured with in the below of the image forming part 3 of ink-jet recording apparatus 1.Be provided with at this recording medium carrying device 2, with the state relative with the nozzle face of record head 6, recording medium P carried out along the direction (hereinafter referred to as sub scanning direction) orthogonal with main scanning direction the endless belt 21 that transports.In addition, be provided with for making the pivotal multiple carrying roller 23,24,25 of endless belt 21 at recording medium carrying device 2.A carrying roller 23 in carrying roller 23,24,25 is driven rollers, and other two carrying rollers 24,25 are driven vollers.Above-mentioned carrying roller 23,24,25 is linked with endless belt 21.By the endless belt 21 that hangs with the plane making its part mode parallel with the nozzle face of record head 6 form level.The surface of the plane of this level is placed with recording medium P.
In addition, the offset detect portion 7 of the computed carrier amount for calculating recording medium P is provided with at recording medium carrying device 2.Specifically, offset detect portion 7 endless belt 21 the initial position becoming the path of the part of plane and compare initial position and be in the downstream of this endless belt 21 gyratory directions and move back and forth freely between the assigned position being set to the record width of the single pass of record head 6 at a distance of the distance of initial position, and detect amount of movement when moving back and forth.
Fig. 2 is the stereogram of the schematic arrangement representing offset detect portion 7, and Fig. 3 is the front view in offset detect portion 7, and Fig. 4 is the rearview in offset detect portion 7, and a part for the rear side in offset detect portion 7 is amplified the stereogram represented by Fig. 5.As shown in Fig. 2 ~ Fig. 5, offset detect portion 7 has: rotating shaft 71, base station 72, the axis of guide 73, scale portion 74, sensor part 75, rotary driving source 76, drive unit 77.
Rotating shaft 71 is bar-shaped axis bodies, along endless belt 21 the path becoming a part for plane, namely extend along sub scanning direction.The both ends of rotating shaft 71 are supported by a pair of support member 711 of the framework being fixed on ink-jet recording apparatus 1.
Base station 72 rotates centered by rotating shaft 71, and it has: a pair rotary part 721, connecting member 722.A pair rotary part 721 is installed on the both ends of rotating shaft 71 respectively, and the rotatable earth's axis is supported on this rotating shaft 71.Connecting member 722 is for linking a pair rotary part 721, and it is arranged on the end of the side contrary with endless belt 21 of a pair rotary part 721.
The axis of guide 73 is bar-shaped axis bodies, is fixed on the end of the side contrary with rotating shaft 71 of rotary part 721 in the mode parallel with rotating shaft 71.
Scale portion 74 follows this endless belt 21 with the state being sticked in endless belt 21 and slides relative to base station 72.Scale portion 74 has: the body 741 being installed on rotating shaft 71 and the axis of guide 73 sliding freely, be arranged at body 741 rotating shaft 71 side end scale 742, be arranged at the band holding section 743 of the axis of guide 73 side end of body 741.
Because body 741 is installed on rotating shaft 71 and the axis of guide 73, therefore, this body 741 follows the rotation of base station 72, rotates in the same manner as this base station 72.
Scale 742 extends along sub scanning direction and is formed with scale (omitting diagram) in its one side.
Band holding section 743 is given prominence to downward from body 741, and its bottom surface becomes rubbing surface.If this rubbing surface contacts with endless belt 21, then band holding section 743 is sticked in endless belt 21.According to this engaging, scale portion 74 follows the gyration of endless belt 21 and slides relative to base station 72.
At this, across endless belt 21 position relative with band holding section 743, be provided with the clamping part 744 together clamping endless belt 21 with the band holding section 743 touching endless belt 21.This clamping part 744 together slides with band holding section 743.
Sensor part 75 is for measuring the amount of movement in scale portion 74.Sensor part 75 is configured at the assigned position of the connecting member 722 of base station 72 in the mode relative with graduated of the formation of scale 742.Because scale portion 74 moves, scale 742 also moves, and now, sensor part 75 measures the amount of movement in scale portion 74 by detecting scale.
Rotary driving source 76 rotates centered by rotating shaft 71 for making base station 72.Rotary driving source 76 is the cylinders linked with the base end part of the rotary part 721 of rear side, by making piston rod be elevated, rotary part 721 is rotated, thus base station 72 is rotated centered by rotating shaft 71.Represent in Fig. 2 ~ Fig. 5: the piston rod of rotary driving source 76 shrinks, and the part becoming plane of endless belt 21 and the engaging of band holding section 743 are by the state removed.And if the piston rod of rotary driving source 76 stretches from this state, then as shown in Figure 6 to 8, rotary part 721 rotates, the bottom surface of band holding section 743 and the part contact becoming plane of endless belt 21, scale portion 74 engages with endless belt 21.Like this, rotary driving source 76 is by making scale portion 74 contact with endless belt 21 or be separated from it, the engaging carrying out endless belt 21 and scale portion 74 or the engaging switching part removing this engaging.
Drive unit 77 returns initial position for making scale portion 74 from assigned position.Drive unit 77 has: drive source 771, connecting gear 772, releasing portion 773.
Drive source 771 is such as motor, near the rotary part 721 being configured at face side.
Connecting gear 772 is for being sent to scale portion 74 by the power of drive source 771.Connecting gear 772 has: a pair belt wheel 774,775, the ring-type linking belt 776 be hung on a pair belt wheel 774,775.The belt wheel 774 of the face side in a pair belt wheel 774,775 is configured to relative with drive source 771.In addition, the belt wheel 775 of rear side is configured near rotary driving source 76.And linking belt 776 configures along sub scanning direction as a whole.A part for linking belt 776 and the body 741 in scale portion 74 link, thus the gyration of linking belt 776 is sent to body 741.
Releasing portion 773 is such as the clutches such as electromagnetic clutch, is linked or removes this link by the belt wheel 774 of drive source 771 and face side.Fig. 3 represent releasing portion 773 remove drive source 771 and the link of the belt wheel 774 of face side after state, Fig. 9 represent releasing portion 773 drive source 771 and the belt wheel 774 of face side are linked after state.
Figure 10 is the block diagram of the main control structure representing ink-jet recording apparatus 1.As shown in Figure 10, the roller drive source 231, record head 6, balladeur train 5, sensor part 75, rotary driving source 76, drive source 771, releasing portion 773 etc. of carrying roller 23 are electrically connected with the control part 8 of ink-jet recording apparatus 1.
Control part 8 has CPU (central operation device) and memory, and controls each structural element of ink-jet recording apparatus 1.The view data being formed at recording medium P, the program of each structural element that is used for controlling ink-jet recording apparatus 1 store by memory.CPU carries out computing based on the view data stored in memory and program, transmits control signal to each structural element based on this operation result.
In addition, control part 8 calculates the computed carrier amount of recording medium P according to the testing result of sensor part 75.Specifically, control part 8 is based on until scale portion 74 calculates the computed carrier amount of recording medium P from the testing result of sensor part 75 that initial position arrives assigned position.This control part 8 is calculating parts of the present invention.And control part 8 controls the rotation amount of carrying roller 23 based on the computed carrier amount calculated, thus control the computed carrier amount of recording medium P.
Then, the effect of present embodiment is described.
If arrive the moment that image record starts, then control part 8 controls the roller drive source 231 of carrying roller 23 to transport recording medium P off and on.If recording medium P becomes halted state after interval conveyance, then control part 8 controls balladeur train 5, makes record head 6 in the enterprising line scanning of recording medium P.When balladeur train 5 scans, control part 8 controls record head 6 to discharge ink from each record head 6, thus records image on recording medium P.
At this, when transporting recording medium P, control part 8 calculates the computed carrier amount of recording medium P.Be described as follows: before conveyance recording medium P, namely before endless belt 21 gyration, as shown in Figure 2, the body 741 in scale portion 74 abuts with the rotary part 721 of rear side.Using this abutted position as initial position.Then, control part 8 controls rotary driving source 76 makes base station 72 rotate, thus scale portion 74 is engaged with the part becoming plane of endless belt 21 (with reference to Fig. 6 and Fig. 7).If endless belt 21 and scale portion 74 engage, then control part 8 controls releasing portion 773 to remove the power transmission between connecting gear 772 and drive source 771.
And if conveyance recording medium P and make endless belt 21 gyration, then scale portion 74 follows the gyration of endless belt 21 and moves.Move according to this, scale 742 also moves, and the amount of movement of scale 742 utilizes sensor part 75 to detect.
As shown in figure 11, by transporting as mentioned above, scale portion 74 arrives assigned position.At this, assigned position refers to the position being set to the record width of the single pass of record head 6 as previously mentioned at a distance of the distance H of initial position.If arrival assigned position, then as shown in figure 12, control part 8 controls rotary driving source 76 to remove the engaging of endless belt 21 and band holding section 743.If the engaging in endless belt 21 and scale portion 74 is removed, then control part 8 controls releasing portion 773 to stop removing the power transmission between connecting gear 772 and drive source 771.
Based on this stopping, the power because of drive source 771 is sent to connecting gear 772, and therefore, belt wheel 774 rotates, linking belt 776 gyration.The body 741 in scale portion 74 is followed linking belt 776 and moves, and turns back to initial position.Now, scale 742 also moves, but control part 8 does not consider the testing result of the sensor part 75 obtained because this moves.That is, control part 8 is based on until scale portion 74 calculates the computed carrier amount of recording medium P from the testing result of sensor part 75 that initial position arrives assigned position.In addition, also can be configured to, control part 8 calculates back amount when making scale portion 74 turn back to initial position based on the testing result of sensor part 75, and this control part 8 controls drive source 771, only returns to make scale portion 74 back amount calculated.
And control part 8 controls the rotation amount of carrying roller 23 to control the computed carrier amount of recording medium P based on the computed carrier amount calculated.
After returning initial position, control part 8 controls rotary driving source 76 makes base station 72 rotate, and engages (with reference to Fig. 6 and Fig. 7) to make scale portion 74 with endless belt 21.If endless belt 21 and scale portion 74 engage, then control part 8 controls releasing portion 773 to remove the power transmission between connecting gear 772 and drive source 771, and prepares the gyration of endless belt 21 next time.
As mentioned above, according to the present embodiment, if endless belt 21 and scale portion 74 engage, then releasing portion 773 removes the power transmission between connecting gear 772 and drive source 771, therefore, follow endless belt 21 in scale portion 74 when moving, the power from drive source 771 does not act on.Therefore, when utilizing sensor part 75 to detect, because not self-driven source 771 applies power, therefore, can prevent above-mentioned situation from becoming interference and causing bringing harmful effect to testing result.Therefore, can the computed carrier amount of Accurate Determining recording medium P.
In addition, if the engaging in endless belt 21 and scale portion 74 is removed, then releasing portion 773 stops removing the power transmission between connecting gear 772 and drive source 771, therefore, when making scale portion 74 return initial position, the power of drive source 771 can be sent to connecting gear 772, thus can return action smoothly be carried out.
In addition, form linear encoder by scale 742 and sensor part 75, utilize this linear encoder to detect computed carrier amount, therefore, also can suppress the impact brought because of the bias of encoder, the thickness deviation etc. of endless belt that existing apparatus is such.
In addition, according to the present embodiment, in order to carry out the engaging in endless belt 21 and scale portion 74 or remove this engaging, base station 72 is rotated centered by rotating shaft 71, thus makes scale portion 74 contact with endless belt 21 or be separated from it.And scale portion 74 follows the gyration of endless belt 21 and slides freely while the axis of guide 73 being parallel to rotating shaft 71 guides.Like this, by the simple structure that a pair axis body (rotating shaft 71 and the axis of guide 73) high with rigidity is basic structure, engaging/non-engagement the action of scale portion 74 relative to endless belt 21 and the sliding action in scale portion 74 can be realized, therefore, can repeatedly guarantee high positional precision.Therefore, have nothing to do with conveying distance, can the computed carrier amount of Accurate Determining recording medium P.
In addition, form linear encoder by scale 742 and sensor part 75, utilize this linear encoder to detect computed carrier amount, therefore, also can suppress the impact brought because of the bias of encoder, the thickness deviation etc. of endless belt that existing apparatus is such.
And, make base station 72 in rotary moving to make scale 742 and endless belt 21 engage or to remove in the action of above-mentioned engaging, position relationship between scale 742 and sensor part 75 is also maintained, therefore, interval between scale 742 and sensor part 75 can not be expanded, and can prevent dust etc. from invading between the two.Therefore, the error detection caused because of the intrusion of dust etc. can be suppressed.
In addition, according to the present embodiment, the gyration of endless belt 21 is the intermittent movement suspended after recording medium P is only transported the computed carrier amount corresponding with the record width of the single pass of record head 6.That is, if computed carrier amount when each detection record medium P is once transported by intermittent movement, then can carry out the little detection of error.And, if scale portion 74 follows the gyration of endless belt 21 from initial position and moves and arrive assigned position, then this scale portion 74 turns back to initial position, and the record width being set to the single pass of record head 6 at a distance of the distance H of initial position is arranged in assigned position.Therefore, can computed carrier amount when detection record medium P is once transported by intermittent movement at every turn, can the computed carrier amount of Accurate Determining recording medium P.
In addition, form linear encoder by scale 742 and sensor part 75, utilize this linear encoder to detect computed carrier amount, therefore, also can suppress the impact brought because of the bias of encoder, the thickness deviation etc. of endless belt that existing apparatus is such.
It should be noted that, the present invention is not limited to above-mentioned embodiment, can suitably change.
According to a preferred embodiment of the present invention, a kind of recording medium carrying device is provided, it is characterized in that having:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
Offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Base station;
This endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt;
Measure the sensor part of the amount of movement in described scale portion;
By making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging; And
Described scale portion is made to return the drive unit of described initial position from described assigned position,
Described drive unit has: drive source, for the power of described drive source is sent to scale portion connecting gear, remove the releasing portion that the power between described connecting gear and described drive source transmits,
If described engaging switching part makes described endless belt and the engaging of described scale portion, then described releasing portion removes the power transmission between described connecting gear and described drive source, if described engaging switching part removes the engaging in described endless belt and described scale portion, then described releasing portion stops removing the power transmission between described connecting gear and described drive source.
According to the present invention, if endless belt and the engaging of scale portion, then releasing portion removes the power transmission between connecting gear and drive source, and therefore, when following endless belt in scale portion and move, the power from drive source does not act on.Therefore, when utilizing sensor part to detect, because not self-driven source applies power, therefore, can prevent above-mentioned situation from becoming interference and causing bringing harmful effect to testing result.Therefore, can the computed carrier amount of Accurate Determining recording medium.
According to a preferred embodiment of the present invention, a kind of recording medium carrying device is provided, it is characterized in that having:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
Offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Rotating shaft, its path becoming a part for described plane along described endless belt extends;
Base station, it is supported by axle in the mode of carrying out linkedly rotating with described rotating shaft;
The axis of guide, it is arranged at the side contrary with described rotating shaft of described base station in the mode parallel with described rotating shaft;
Scale portion, it is followed described endless belt while being guided by the described axis of guide and slides;
Sensor part, it is installed on described base station can measure the amount of movement in described scale portion;
Rotary driving source, it makes described base station rotate centered by described rotating shaft; And
Drive unit, it makes described scale portion return described initial position from described assigned position,
If described rotary driving source made described base station rotate to make described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described rotary driving source makes described base station rotate with the engaging removing described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position,
Described calculating part, based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculates the computed carrier amount of described recording medium.
Be preferably, a kind of image processing system be provided, it is characterized in that, have: described recording medium carrying device, on the described recording medium utilizing described recording medium carrying device to transport, form the image forming part of image.
According to the present invention, in order to carry out the engaging in endless belt and scale portion or remove this engaging, base station is rotated centered by rotating shaft, thus make scale portion contact with endless belt or be separated from it.In addition, scale portion follows the gyration of endless belt while being parallel to the axis of guide guiding of rotating shaft and slides freely.Like this, by the simple structure that a pair axis body (rotating shaft and the axis of guide) high with rigidity is basic structure, engaging/non-engagement the action of scale portion relative to endless belt and the sliding action in scale portion can be realized, therefore, can repeatedly guarantee high positional precision.Therefore, have nothing to do with conveying distance, can the computed carrier amount of Accurate Determining recording medium.
According to a preferred embodiment of the present invention, a kind of recording medium carrying device is provided, it is equipped on ink-jet recording apparatus, this ink-jet recording apparatus makes record head form image on the recording medium while sub scanning direction carries out scanning, the feature of described recording medium carrying device is to have:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
Offset detect portion, its initial position becoming the path of the part of described plane at described endless belt and compare described initial position and be in the downstream that is closer to this endless belt gyratory directions and be set at a distance of the distance of described initial position move back and forth freely between the assigned position of the record width of the single pass of described record head, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Base station;
This endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt;
Be installed on described base station the sensor part of the amount of movement in described scale portion can be measured;
By making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging; And
Described scale portion is made to return the drive unit of described initial position from described assigned position,
If described engaging switching part made described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described engaging switching part removes the engaging of described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position
Described calculating part, based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculates the computed carrier amount of described recording medium.
Be preferably, a kind of ink-jet recording apparatus is provided, it is characterized in that having: described recording medium carrying device, make described record head carry out scanning along sub scanning direction while on the described recording medium utilizing described recording medium carrying device to transport, form the image forming part of image.
According to the present invention, the gyration of endless belt is the intermittent movement suspended after recording medium is only transported the computed carrier amount corresponding with the record width of the single pass of record head.That is, if computed carrier amount when each detection record medium is once transported by intermittent movement, then can carry out the little detection of error.And if scale portion follows the gyration of endless belt from initial position and moves and arrive assigned position, then this scale portion turns back to initial position, the record width being set to the single pass of record head at a distance of the distance of initial position is arranged in assigned position.Therefore, can computed carrier amount when detection record medium is once transported by intermittent movement at every turn, can the computed carrier amount of Accurate Determining recording medium.
Present patent application requires the priority of Patent 2011-167392, Patent 2011-167398 that on July 29th, 2011 proposes to Japanese Patent Office and Patent 2011-167401 according to Paris Convention, using the foundation that this Japanese patent application is corrected as the mistranslation of present patent application.
Claims (5)
1. a recording medium carrying device, it has:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
The feature of described recording medium carrying device is also have:
Offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Base station;
This endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt;
Measure the sensor part of the amount of movement in described scale portion;
By making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging; And
Described scale portion is made to return the drive unit of described initial position from described assigned position,
Described drive unit has: drive source, for the power of described drive source is sent to scale portion connecting gear, remove the releasing portion that the power between described connecting gear and described drive source transmits,
If described engaging switching part makes described endless belt and the engaging of described scale portion, then described releasing portion removes the power transmission between described connecting gear and described drive source, if described engaging switching part removes the engaging in described endless belt and described scale portion, then described releasing portion stops removing the power transmission between described connecting gear and described drive source.
2. a recording medium carrying device, it has:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
The feature of described recording medium carrying device is also have:
Offset detect portion, move back and forth freely between its initial position becoming the path of the part of described plane at described endless belt and the assigned position compared described initial position and be configured at the downstream being closer to this endless belt gyratory directions, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Rotating shaft, its path becoming a part for described plane along described endless belt extends;
Base station, it is supported by axle in the mode of carrying out linkedly rotating with described rotating shaft;
The axis of guide, it is arranged at the side contrary with described rotating shaft of described base station in the mode parallel with described rotating shaft;
Scale portion, it is followed described endless belt while being guided by the described axis of guide and slides;
Sensor part, it is installed on described base station can measure the amount of movement in described scale portion;
Rotary driving source, it makes described base station rotate centered by described rotating shaft; And
Drive unit, it makes described scale portion return described initial position from described assigned position,
If described rotary driving source made described base station rotate to make described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described rotary driving source makes described base station rotate with the engaging removing described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position,
Described calculating part, based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculates the computed carrier amount of described recording medium.
3. an image processing system, is characterized in that, has: the recording medium carrying device described in claim 1 or 2 and form the image forming part of image on the described recording medium utilizing described recording medium carrying device to transport.
4. a recording medium carrying device, it is equipped on ink-jet recording apparatus, and this ink-jet recording apparatus makes record head form image on the recording medium while sub scanning direction carries out scanning, and described recording medium carrying device has:
Endless belt, it is placed with recording medium on surface;
Multiple carrying roller, it supports described endless belt in the mode making a part for described endless belt and become plane, and described endless belt is turned round off and on;
The feature of described recording medium carrying device is also have:
Offset detect portion, its initial position becoming the path of the part of described plane at described endless belt and compare described initial position and be in the downstream that is closer to this endless belt gyratory directions and be set at a distance of the distance of described initial position move back and forth freely between the assigned position of the record width of the single pass of described record head, and detect amount of movement when moving back and forth;
Calculating part, it calculates the computed carrier amount of described recording medium according to the testing result in described offset detect portion; And
Control part, it controls to utilize described carrying roller to transport the computed carrier amount of described recording medium based on the described computed carrier amount calculated,
Described offset detect portion has:
Base station;
This endless belt is followed and the scale portion of sliding relative to described base station with the state being sticked in described endless belt;
Be installed on described base station the sensor part of the amount of movement in described scale portion can be measured;
By making described scale portion contact with described endless belt or be separated from it, carrying out the engaging in described endless belt and described scale portion or removing the engaging switching part of this engaging; And
Described scale portion is made to return the drive unit of described initial position from described assigned position,
If described engaging switching part made described scale portion engage with the part becoming described plane of described endless belt at described initial position before described endless belt gyration, then described scale portion follows the gyration of described endless belt and moves, and after described scale portion arrives described assigned position, described engaging switching part removes the engaging of described scale portion and described endless belt, after the engaging removing described scale portion and described endless belt, when described endless belt stops, described drive unit makes described scale portion turn back to described initial position
Described calculating part, based on until described scale portion to arrive the testing result of the described sensor part of described assigned position from described initial position, calculates the computed carrier amount of described recording medium.
5. an ink-jet recording apparatus, it is characterized in that having: recording medium carrying device according to claim 4 and form the image forming part of image while making described record head carry out scanning along sub scanning direction on the described recording medium utilizing described recording medium carrying device to transport.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-167392 | 2011-07-29 | ||
| JP2011167401A JP2013028144A (en) | 2011-07-29 | 2011-07-29 | Recording medium conveying device and image forming apparatus |
| JP2011167398A JP5397430B2 (en) | 2011-07-29 | 2011-07-29 | RECORDING MEDIUM CONVEYING DEVICE AND INKJET RECORDING DEVICE |
| JP2011-167398 | 2011-07-29 | ||
| JP2011-167401 | 2011-07-29 | ||
| JP2011167392A JP2013028142A (en) | 2011-07-29 | 2011-07-29 | Recording medium conveying device and image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896914A CN102896914A (en) | 2013-01-30 |
| CN102896914B true CN102896914B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210265046.7A Active CN102896914B (en) | 2011-07-29 | 2012-07-27 | Recording medium carrier device, image forming apparatus and ink-jet recording apparatus |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2551121B1 (en) |
| CN (1) | CN102896914B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625132B (en) * | 2013-12-03 | 2017-01-11 | 深圳市润天智数字设备股份有限公司 | Ink printer and medium positioning device thereof |
| CN104723696B (en) * | 2015-03-17 | 2017-03-01 | 汕头东风印刷股份有限公司 | There is ink-jet printer stock transmission platform and its method for work of deviation-correcting function |
| JP6808435B2 (en) * | 2016-10-11 | 2021-01-06 | 株式会社ミマキエンジニアリング | Printing equipment |
| JP2018192735A (en) * | 2017-05-19 | 2018-12-06 | セイコーエプソン株式会社 | Printer and slip detection method for conveyance belt |
| JP6926669B2 (en) * | 2017-05-19 | 2021-08-25 | セイコーエプソン株式会社 | Printing equipment |
| CN111587836A (en) * | 2020-05-27 | 2020-08-28 | 冯家富 | Intelligent logistics conveying equipment |
| JP7494623B2 (en) * | 2020-07-28 | 2024-06-04 | セイコーエプソン株式会社 | Recording device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482597A (en) * | 2002-08-28 | 2004-03-17 | 欧姆龙株式会社 | Magnetic recording method and apparatus, device for determining coercive force of magnetic recording medium |
| CN101274551A (en) * | 2007-03-27 | 2008-10-01 | 日本冲信息株式会社 | Image recording apparatus |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2516694B2 (en) * | 1990-02-05 | 1996-07-24 | 東伸工業株式会社 | Intermittent drive of endless belt in automatic screen printing machine |
| JP2003165250A (en) * | 2001-11-30 | 2003-06-10 | Copyer Co Ltd | Serial printer |
| JP4353123B2 (en) * | 2005-03-30 | 2009-10-28 | ブラザー工業株式会社 | Recording device |
| JP2006347055A (en) * | 2005-06-17 | 2006-12-28 | Ricoh Co Ltd | Ink jet recorder |
| JP4449924B2 (en) | 2006-02-27 | 2010-04-14 | ブラザー工業株式会社 | Inkjet printer |
| JP5305001B2 (en) * | 2007-12-05 | 2013-10-02 | セイコーエプソン株式会社 | Belt skew correction device, belt conveyance device, and recording device |
| JP2009149387A (en) * | 2007-12-19 | 2009-07-09 | Ihi Corp | Position detection device of transferred article |
| JP2010195553A (en) * | 2009-02-26 | 2010-09-09 | Seiko Epson Corp | Medium conveying device and inkjet recording device |
| EP2679391B1 (en) * | 2011-02-24 | 2017-09-20 | Konica Minolta, Inc. | Recording medium transfer apparatus and image forming apparatus |
-
2012
- 2012-07-18 EP EP12176944.2A patent/EP2551121B1/en active Active
- 2012-07-27 CN CN201210265046.7A patent/CN102896914B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482597A (en) * | 2002-08-28 | 2004-03-17 | 欧姆龙株式会社 | Magnetic recording method and apparatus, device for determining coercive force of magnetic recording medium |
| CN101274551A (en) * | 2007-03-27 | 2008-10-01 | 日本冲信息株式会社 | Image recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2551121B1 (en) | 2015-01-21 |
| EP2551121A1 (en) | 2013-01-30 |
| CN102896914A (en) | 2013-01-30 |
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