JPH08156333A - Recording device - Google Patents

Abstract

(57) [Abstract] [Purpose] A structure of a self-propelled recording unit that can reduce the number of constituent parts to reduce the processing man-hours and the assembly man-hours, and easily improve the strength and the dimensional accuracy. obtain. [Structure] In a self-propelled recording apparatus capable of performing self-propelled recording along an object to be recorded 12 and combined with a paper guide unit 11 to form a paper feeding type recording apparatus, a chassis base 20 is provided with: Guide rail portions 21 and 22 for guiding and supporting the carrier head 23, a slip line 30 electrically connected to the carrier head 23, and a self-propelled drive roller 3
The bearing portion 35 of No. 7, the support portion 34 of the auxiliary wheel 36, and the mounting portion for mounting the driving force transmission mechanism are formed on the body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording on a recording material by recording means.

[0002]

2. Description of the Related Art A recording device having functions such as a printer, a copying machine and a facsimile, or a recording device used as an output device of a multifunction machine or a workstation including a computer, a word processor, etc., is a sheet or a plastic thin plate based on image information. Images (including characters and symbols) on recording materials (recording media) such as (sheets for OHP)
Is configured to record. The recording device can be classified into an ink jet type, a wire dot type, a heat sensitive type, a thermal transfer type, a laser beam type and the like depending on the recording system of the recording means used.

In a serial type recording apparatus which employs a recording system in which a main scanning is performed in a direction intersecting a conveying direction (sub-scanning direction) of a recording material, the recording material is set at a predetermined recording position and then the recording material is set. An image (including characters, symbols, etc.) is recorded by a recording unit (recording head) mounted on a carriage that moves (main scanning) along, and after one line of recording is completed, a predetermined amount of paper is fed (sub-scan). An image is recorded in a desired range of the recording material by repeating the operation of performing (scanning) and then recording (main scanning) the image of the next row. On the other hand, in a line type recording apparatus that records a recording material only in the sub-scanning direction in which the recording material is fed in the transport direction, the recording material is set at a predetermined recording position, and one line of recording is continuously performed at one time. A predetermined amount of paper feed (pitch feed) is performed, and an image is recorded on the entire recording material.

Among them, the ink jet type (ink jet recording apparatus) is a means for recording by ejecting ink from a recording means (recording head) onto a recording material, and it is easy to make the recording means compact and high definition. Images can be recorded at high speed, plain paper can be recorded without requiring special processing, running costs are low, and the non-impact method reduces noise and uses multicolor inks. Therefore, it has an advantage that it is easy to record a color image. Above all, a line type recording apparatus using a line type recording means in which a large number of ejection ports are arranged in the paper width direction can further speed up recording.

In particular, an ink jet type recording means (recording head) for ejecting ink by utilizing heat energy,
Through the semiconductor manufacturing process such as etching, vapor deposition, and sputtering, the electrothermal converter formed on the substrate, the electrode,
By forming the liquid passage wall, the top plate, and the like, it is possible to easily manufacture a liquid discharge device having a high-density liquid passage arrangement (ejection port arrangement), and to further reduce the size. Further, by utilizing the advantages of IC technology and micro processing technology, it is easy to make the recording means long and planar (two-dimensional), and it is also easy to make the recording means full-multi and high-density mounting. is there. On the other hand, there are various requirements for the material of the recording material, and in recent years, in addition to the ordinary recording material such as paper and resin thin plate, thin paper and processed paper (paper with punch holes for filing and perforation). Paper, paper of any shape, etc.)
It has been required to use such as.

As the recording apparatus, a self-propelled recording apparatus having a unit structure capable of recording while traveling on a recording material has been proposed. This self-propelled recording apparatus is capable of recording independently while traveling on a recording material, and is also configured so as to constitute a stationary stationary recording apparatus by being combined with a paper guide unit. In this case, for example, a roller used as a self-propelled drive roller in the self-propelled type is used as a paper feed roller (conveying roller) in the stationary type.

As the first technical means of the above-mentioned self-propelled recording apparatus, each constituent portion is made into a small unit, and these constituent portions are respectively elastically locked to a chassis base of the apparatus body such as a mold hook or screw fastening. The method of assembling depending on the method is generally adopted.

As a second technical means, the bearing of the self-propelled driving roller for running the self-propelled recording apparatus is formed by a supporting surface having a hole diameter smaller than the roller diameter, and the outer diameter of the bearing is Also has a diameter smaller than the roller diameter. In this case, the position of the bearing of the self-propelled drive roller is usually selected at two positions near the center in the axial direction.

[0009]

However, in the above-mentioned first technical means, the number of parts is large, the management of parts is complicated, and the number of assembling steps is also large. Therefore, the cumulative error in assembling parts becomes large, There may be many technical problems such as a decrease in dimensional accuracy due to distortion at the time of fastening components to each other and a decrease in smoothness of component operation such as carrier operation.

Further, in the second technical means, the self-propelled driving roller has a particularly long roller length with respect to the roller diameter, so that the roller is distorted at two end portions of the shaft, and the roller is skewed. There are technical challenges. In this case, if the number of bearings is increased toward the center, a difference in torsional distortion occurs at both ends of the roller, resulting in a difference in feeding time.

[0011]

According to a first aspect of the present invention, there is provided a recording apparatus for recording on a recording material by a recording means, which is capable of recording while traveling by itself along the recording material, and a paper guide unit. In a self-propelled recording device that can be combined to form a stationary recording device, a chassis base is electrically connected to a guide rail portion that guides and supports a carrier that constitutes recording means, and is electrically connected to the carrier. The slip line, the bearing portion of the self-propelled drive roller, the support portion for axially supporting the auxiliary wheel, and the drive mechanism attachment portion for attaching the drive mechanism are integrally formed, It is an object of the present invention to provide a self-propelled recording device capable of significantly reducing the number of parts and easily realizing improvement in strength and dimensional accuracy.

According to a second aspect of the present invention, there is provided a recording apparatus for recording on a recording material by a recording means, which is capable of recording while traveling by itself along the recording material, and is static by coupling with a paper guide unit. A self-propelled recording device capable of forming a stationary recording device is provided with a self-propelled drive roller that becomes a paper feed roller when combined with a paper guide unit and becomes a traveling drive roller at the time of self-propelled recording. The roller is axially supported by a plurality of intermediate bearing portions arranged at intermediate positions in the axial direction, and an opening for ensuring contact between the self-propelled driving roller and the recording material is provided on the recording material side of each intermediate bearing portion. By forming the configuration, it is possible to significantly reduce the torsional distortion when driving the self-propelled drive roller,
It is an object of the present invention to provide a self-propelled recording device capable of avoiding the interference between the intermediate bearing portion and the recording material.

According to the inventions of claims 3 to 5, in addition to the constitution of claim 2, the outer diameter of the portion of the self-propelled drive roller supported by the intermediate bearing portion is equal to the outer diameter of the self-propelled drive roller. Or a slightly small structure, a structure in which a dry bearing material is coated on a contact portion of the intermediate bearing portion with the self-propelled driving roller, or both end portions of the self-propelled driving roller are supported by shaft end bearing portions, By making the outer diameter of the portion of the self-propelled drive roller supported by the intermediate bearing portion the same as the outer diameter of the self-propelled drive roller,
(EN) Provided is a self-propelled recording device capable of significantly reducing torsional distortion when driving a self-propelled drive roller and avoiding interference between an intermediate bearing portion and a recording material. Is.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic perspective view showing an embodiment of a self-propelled recording apparatus (hereinafter also referred to as a self-propelled recording unit) suitable for applying the present invention, and FIG. 2 is a self-propelled recording of FIG. FIG. 3 is a schematic perspective view of a stationary recording device configured by connecting a paper guide unit 11 to the unit. 1 and 2, the self-propelled recording unit 10 is configured to record on the recording material 12 while moving along the recording material (for example, a thick plate-shaped recording material) 12. The self-propelled recording unit 10 is provided with an operation unit 13 and a display unit 14. Reference numeral 15 denotes an interface connector of the self-propelled recording unit 10.

In FIG. 2, a stationary recording apparatus suitable for recording on a sheet-shaped recording material 16 fed between the self-propelled recording unit 10 and the paper guide unit 11 is connected. Is configured. The self-propelled recording unit 10 and the paper guide unit 11 are configured so that they can be combined and separated with one touch, and a split lever 17 is provided on the side surface of the paper guide unit 11.

FIG. 3 is a schematic perspective view of the constitution of the first embodiment of the self-propelled recording unit 10 to which the present invention is applied, as seen from the recording material 16 side. In FIG. 3, the chassis base 20 includes guide rail portions 21 extending in parallel to each other in the longitudinal direction.
A carrier (carrier head) 23, which is integrally formed with 22 and constitutes a recording means, has these guide rail portions 2.
It is guided and supported so as to be capable of reciprocating along 1 and 22.
A drive pulley 24 and a driven pulley 25 are attached to both ends of the chassis base 20, and the carrier head 2
A carrier rope 28, which is connected to the protruding portion 26 of No. 3 via a joint 27, is stretched around the pulleys 24 and 25.

The drive pulley 24 is a carrier motor 29.
Is driven to rotate. Therefore, by controlling the forward / reverse rotation of the carrier motor 29, the moving direction and position of the carrier head 23 are controlled. The carrier motor 29 is also attached to the chassis base 20 at a predetermined position. A slip line 30 electrically connected to a carrier head 23 is formed on the upper surface of the chassis base 20.
3 is provided with a contact brush 31 for rubbing against the slip line 30 to ensure electrical contact. One end of a flexible cable 33 is positioned and connected to one end of the slip line 30 by a pad 32.

The carrier head 23 is an ink jet recording means for ejecting ink for recording, and is composed of a replaceable ink jet cartridge in which an ink ejecting portion (recording head portion) and an ink tank are integrated. The recording head 23 is an inkjet recording unit that ejects ink by using thermal energy, and includes an electrothermal converter for generating thermal energy. Further, the recording head 23 performs recording by ejecting ink from an ejection port by utilizing a pressure change caused by growth and contraction of bubbles due to film boiling generated by thermal energy applied by the electrothermal converter. Is.

FIG. 4 is a partial perspective view schematically showing the structure of the ink ejection portion of the recording head 23. In FIG.
On the ejection port surface 81 facing the recording material (recording paper etc.) 12 (or 16) with a predetermined gap (for example, about 0.5 to 2.0 mm), a plurality of ejections are performed at a predetermined pitch. Exit 8
2 is formed, and an electrothermal converter (heating resistor or the like) 85 for generating energy for ejecting ink along the wall surface of each liquid passage 84 that connects the common liquid chamber 83 and each ejection port 82.
Is provided. The plurality of ejection openings 82 are arranged in a positional relationship such that they are arranged in a direction intersecting with the moving direction (main scanning direction) of the recording head 23. In this manner, the corresponding electrothermal converter 85 is driven (energized) based on the image signal or the ejection signal to cause the ink in the liquid passage 84 to film-boil, and the pressure generated at that time causes the ink to be ejected from the ejection port 82. The recording head 23 is configured.

In FIG. 3, at both ends of the chassis base 20, arm-shaped support portions 34, 34 and bearing portions 35,
35 is integrally formed. Auxiliary wheels 36, 36 for self-propelling are rotatably supported at the tip ends of the supporting portions 34, 34. Further, both end shaft portions of the self-propelled drive roller 37 are rotatably supported by the bearing portions 35, 35.
A paper feed motor 38 is provided at one end of the chassis base 20.
Is attached. On the other hand, the self-propelled drive roller 37
A gear (self-propelled drive roller gear) 39 is provided at the end portion on the same side of.

The motor gear 40 of the paper feed motor 38 is connected to the self-propelled drive roller gear 39 via a reduction gear 41. Therefore, the self-propelled recording unit 10 moves in the line feed direction (self-propelled) along the surface of the recording material 12 by controlling the forward and reverse rotations of the paper feed motor 38. When the self-propelled recording unit 10 is connected to the paper guide unit 11, the self-propelled driving roller gear 39 is configured to function as a paper feed roller (conveying roller) for feeding the recording material 16 to the paper. ing.
Further, a bracket portion (not shown) for mounting the carrier motor 29, a bracket portion (not shown) for mounting the paper feed motor 38, the drive pulley 24.
The shaft portion (not shown) of the driven pulley 25 and the shaft portion (not shown) of the reduction gear 41 are also the chassis base 20.
Is formed integrally with.

According to the embodiment described above, the recording material 1
In the self-propelled recording device 10 capable of recording while self-propelled along 2 and capable of constituting a stationary recording device by coupling with the paper guide unit 11,
Guide rail portions 21 and 22 for guiding and supporting the carrier head 23 on the chassis base 20, slip lines 30 electrically connected to the carrier head, and both-end bearing portions 35 and 35 for axially supporting the self-propelled drive roller 37. , Support portions 34, 34 on both sides for axially supporting the auxiliary wheels 36 on both sides, and a drive mechanism attachment portion for attaching the carrier motor 29, the paper feed motor 38 and their drive transmission mechanism are integrally formed. Since the configuration is adopted, the self-propelled recording device, that is, the self-propelled recording unit 10 capable of significantly reducing the number of parts and easily realizing the improvement of the strength and the dimensional accuracy is provided. .

FIG. 5 is a schematic perspective view of the construction of a second embodiment of a self-propelled recording apparatus (self-propelled recording unit) 10 to which the present invention is applied, as viewed from the recording material 12 side. This embodiment is different from the first embodiment of FIG. 3 in that the movement of the carrier (carrier head) 23 is driven by a lead screw. That is, in this embodiment, the lead screw 44 is rotatably supported by the bearing portions 42 and 43 integrally formed at both ends of the chassis base 20. A spiral lead groove 45 is formed on the peripheral surface of the lead screw 44, and the tip end of a pin-shaped projection (not shown) provided on the carrier head 23 is engaged in the lead groove 45.

A carrier motor 29 is fixed to a bracket portion 46 formed at one end of the chassis base 20 by means of screws and the motor gear 47 of the carrier motor 29 is fixed to the lead screw 44 (or It meshes with the lead screw gear 48 (in one piece). Therefore, by controlling the forward / reverse rotation of the carrier motor 29, the moving direction and position of the carrier head 23 are controlled. This embodiment is different from the first embodiment of FIG. 3 only in that the above-described lead screw type transmission mechanism is used instead of the transmission mechanism including the carrier rope 28 and the pulleys 24, 25 in FIG. Although different, the other configurations are substantially the same. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof will be omitted.

Also according to the second embodiment of FIG. 5, the chassis base 20 has guide rail portions 21 and 22 for guiding and supporting the carrier head 23, a slip line 30 electrically connected to the carrier head 23, and a self-rail. Both-end bearings 35, 35 that axially support the running drive roller 37, support portions 34, 34 on both sides for axially supporting the auxiliary wheels 36 on both sides, the carrier motor 29, the paper feed motor 38, and their drive transmission mechanisms. Since the drive mechanism mounting part for mounting is configured integrally, it is possible to greatly reduce the number of parts and to easily improve strength and dimensional accuracy. A type of recording device, a self-propelled recording unit 10, is provided.

FIG. 6 is a schematic perspective view of the construction of a third embodiment of a self-propelled recording apparatus (self-propelled recording unit) 10 to which the present invention is applied, as viewed from the recording material 16 side. In FIG.
Guide rail portions 21 and 22 extending parallel to each other in the longitudinal direction are integrally formed on the chassis base 20, and a carrier (carrier head) 23 constituting a recording unit reciprocates along these guide rail portions 21 and 22. Guided and supported as possible. A drive pulley 24 and a driven pulley 25 are attached to both ends of the chassis base 20,
The carrier rope 28 coupled to the protrusion 26 of the carrier head 23 through the joint 27 is the pulley 24,
It is stretched around 25.

The drive pulley 24 is a carrier motor 29.
Is driven to rotate. Therefore, by controlling the forward / reverse rotation of the carrier motor 29, the moving direction and position of the carrier head 23 are controlled. The carrier motor 29 is also attached to the chassis base 20 at a predetermined position. A slip line 30 electrically connected to a carrier head 23 is formed on the upper surface of the chassis base 20.
3 is provided with a contact brush 31 for rubbing against the slip line 30 to ensure electrical contact. One end of a flexible cable 33 is positioned and connected to one end of the slip line 30 by a pad 32.

In FIG. 6, arm-shaped supporting portions 34, 34 are integrally formed at both ends of the chassis base 20, and self-propelled auxiliary wheels 36, 34 are provided at the tips of the supporting portions 34, 34. 36 is rotatably supported. The chassis base 20 is integrally formed with a plurality of intermediate bearing portions 51 that rotatably support the self-propelled drive roller 37 at a plurality of intermediate positions. In the illustrated example, the intermediate bearing portions 51 are provided at two locations, and the intermediate bearing portions 51 at these two locations are arranged so that the ratio of the axial dimension A: B: A shown in FIG. 6 becomes the Early ratio. Has been done.

FIG. 7 is a schematic longitudinal sectional view of the intermediate bearing portion 51 of the self-propelled recording unit 10 of FIG. 6 when the self-propelled recording unit 10 is in a self-propellable state on the recording material 12. Figure 6
In addition, in FIG. 7, each intermediate bearing portion 51 is formed at a tip portion (a lower end portion in the illustrated example) of an arm portion 52 integrally formed with the chassis base 20, and each intermediate bearing portion 5 is formed.
An opening 53 for ensuring contact between the self-propelled driving roller 37 and the recording material 12 during recording is formed on the recording material 12 side (the lower side in the illustrated example) of No. 1. These openings 53
Is for preventing the interference of the respective intermediate bearing portions 51 when the self-propelled driving roller 37 is brought into contact with the recording material 12 to be self-propelled.

The portion (bearing shaft portion) 54 of the self-propelled drive roller 37 which is axially supported by each intermediate bearing portion 51 has a diameter slightly smaller than the outer diameter of the roller, as shown in FIG.
Further, a coating layer 55 of a dry bearing material is formed on the inner diameter surface of each intermediate bearing portion 51 that contacts the self-propelled drive roller 37 (specifically, the outer peripheral surface of the bearing shaft portion 54). In FIG. 6, a paper feed motor 38 is attached to one end of the chassis base 20. On the other hand, a gear (self-propelled drive roller gear) 39 is provided at the same end of the self-propelled drive roller 37.

The motor gear 40 of the paper feed motor 38 is connected to the self-propelled drive roller gear 39 via a reduction gear 41. Therefore, the self-propelled recording unit 10 moves in the line feed direction (self-propelled) along the surface of the recording material 12 by controlling the forward and reverse rotations of the paper feed motor 38. When the self-propelled recording unit 10 is connected to the paper guide unit 11, the self-propelled driving roller gear 39 is configured to function as a paper feed roller (conveying roller) for feeding the recording material 16 to the paper. ing.

In this embodiment, the self-propelled drive roller 37 is rotatably supported by the intermediate bearing portion 51 at two locations in the axially intermediate portion thereof, and these two intermediate bearing portions 51 are self-propelled. The drive roller 37 is arranged at the Early point with the least distortion. A, B, and A in FIG. 6 indicate the position of the Early point in the entire length of the self-propelled drive roller 37, where A:
The ratio of B: A is the Early ratio. In addition, each intermediate bearing portion 5
The self-propelled drive roller 3 on the recording material 12 (or 16) side
Since the opening 53 for avoiding the interference between the recording medium 7 and the recording material is provided, it is not necessary to make the diameter of the bearing shaft portion 54 of the self-propelled driving roller 37 very small, and the size is slightly smaller than the roller diameter. Can be selected.

As described above, in the present embodiment, the self-propelled drive roller 37 is supported at the early point with the least distortion, and the diameter of the bearing shaft portion 54 may be made slightly smaller than the roller diameter. It is also possible to reduce the amount to a very small amount. As a result, the bending distortion and the torsional distortion of the self-propelled driving roller 37 can be reduced to a minimum, skewing at the time of recording can be prevented, and accurate paper feeding without skewing (line feeding = sub-scanning) A recording device capable of

According to the third embodiment described with reference to FIGS. 6 and 7, it is possible to perform recording while traveling along the recording material 12 and to record by stationary type by coupling with the paper guide unit 11. A self-propelled recording apparatus 10 that can be configured as an apparatus is provided with a self-propelled drive roller 37 that functions as a paper feed roller when coupled with a paper guide unit 11 and as a traveling drive roller during self-propelled recording. The roller 37 includes a plurality of intermediate bearing portions 5 arranged at intermediate positions in the axial direction.
The recording material 12 of each intermediate bearing portion 51 is supported by 1
Since the opening 53 for avoiding the interference between the intermediate bearing portion and the recording material is formed on the (or 16) side, the self-propelled driving roller 37 can be reliably pressed against the recording materials 12, 16. Moreover, a self-propelled recording apparatus is provided which can minimize the torsional distortion when the self-propelled driving roller 37 is rotationally driven, and which enables highly accurate paper feeding and recording.

FIG. 8 is a schematic perspective view of the configuration of a fourth embodiment of a self-propelled recording apparatus (self-propelled recording unit) 10 to which the present invention is applied, as viewed from the recording material 12 side. In this embodiment, the self-propelled driving roller 37 is supported at both end positions in addition to a plurality of intermediate positions.
6 and FIG. 7 in that the intermediate bearing portion 51 directly supports the portion of the roller diameter without forming 4, and the movement of the carrier (carrier head) 23 is driven by the lead screw. This is different from the embodiment.

In FIG. 8, in addition to the arm-shaped supporting portions 34, 34, the shaft end bearing portion 5 is provided at both ends of the chassis base 20.
6, 57 are integrally formed. Then, the self-propelled drive roller 37 includes a plurality of intermediate bearing portions 51 as in the case of FIG.
Is axially supported by the shaft end bearing portion 56 at both ends.
It is rotatably supported by. In this embodiment, the self-propelled drive roller 37 has a straight roller shape without the bearing shaft portion 54 shown in FIG. 6, and the roller diameter (outer peripheral surface) is directly changed to the intermediate bearing at the axially intermediate portion. It is pivotally supported by the portion 51. In this embodiment, one shaft end of the self-propelled drive roller 37 is axially supported by the shaft end bearing 56 at a position adjacent to the inner side of the self-propelled drive roller gear 39.

In FIG. 8, a lead screw 44 is rotatably supported by bearings 42 and 43 integrally formed at both ends of the chassis base 20. A spiral lead groove 45 is formed on the peripheral surface of the lead screw 44, and the tip end of a pin-shaped projection (not shown) provided on the carrier head 23 is engaged in the lead groove 45.
The carrier motor 29 is fixed to a bracket portion 46 formed at one end of the chassis base 20 by means of screws or the like. The lead screw 44 is rotationally driven by the driving force of the carrier motor 29 via the motor gear 47 and the lead screw gear 48. Therefore, by controlling the forward / reverse rotation of the carrier motor 29, the moving direction and position of the carrier head 23 are controlled.

That is, in the present embodiment, as described above, the both end bearing portions 56 and 57 of the self-propelled driving roller 37 are added, and the transmission mechanism including the carrier rope 28 and the pulleys 24 and 25 in FIG. It differs from the third embodiment shown in FIG. 6 in that the lead screw type transmission mechanism is used instead, and the other parts have substantially the same configuration. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof will be omitted.

According to the fourth embodiment of FIG. 8, the self-propelled drive roller 37 is supported at the early point and both ends having the least distortion, and has the same maximum outer diameter (roller diameter) as the outer diameter at the axial middle portion. Since it is axially supported by the radial portion, it becomes possible to further reduce the torsional strain and the bending strain as compared with the third embodiment of FIG. Therefore, the bending strain and the torsional strain of the self-propelled driving roller 37 can be further reduced to the minimum.
It is possible to obtain a recording device capable of more accurate paper feed (line feed = sub-scanning) without skewing.

That is, according to the fourth embodiment of FIG. 8 as well as the case of the third embodiment of FIGS. 6 and 7, since the openings 53 are formed on the recording material side of each intermediate bearing portion 51, It is possible to reliably press the running drive roller 37 against the recording materials 12 and 16, and to reduce the torsional distortion when the self-running drive roller 37 is rotationally driven to a minimum. And a self-propelled recording device capable of recording is provided.

In the above embodiments, the case where the present invention is applied to the ink jet recording apparatus has been described as an example, but the present invention is not limited to the wire dot type, heat sensitive type, thermal transfer type or laser beam type. The same can be applied to the recording apparatus using the recording means of the method (3), and the same operation and effect can be obtained.

In the above-described embodiments, the case of the serial recording method in which the recording means (recording head) is moved in the main scanning direction has been described as an example, but the present invention is the entire width or a part of the recording material. The same can be applied to the case of the line recording method in which the line recording unit having a length covering the above is used to perform recording only in the sub-scan, and the same effect can be achieved. Further, the present invention provides a single-color recording device for recording with one recording device, a color recording device using a plurality of recording devices for recording with different colors, or a plurality of recording devices for recording with the same color but different densities. The same can be applied to the gradation recording device used, and further to the recording device in which these are combined, and the same effect can be achieved.

Further, according to the present invention, when a replaceable head cartridge in which a recording head and an ink tank are integrated is used, or when the recording head and the ink tank are provided separately and the space between them is connected by an ink supply tube or the like. The same can be applied to any arrangement of the recording head and the ink tank, and similar effects can be obtained.

The present invention can be applied to an ink jet recording apparatus using a recording means (recording head) using an electromechanical transducer such as a piezo element, but among others, thermal energy is used. The present invention brings excellent effects in an ink jet recording apparatus that uses a recording means of a type that ejects ink. This is because such a system can achieve high density recording and high definition recording.

[0045]

As is apparent from the above description, according to the first aspect of the invention, it is a recording apparatus for recording on a recording material by the recording means, which is capable of recording while traveling along the recording material. In a self-propelled recording device capable of forming a stationary recording device by being combined with a paper guide unit, a guide rail portion for guiding and supporting a carrier constituting recording means on a chassis base, The slip line electrically connected to the carrier, the bearing portion of the self-propelled drive roller, the support portion for axially supporting the auxiliary wheel, and the drive mechanism attachment portion for attaching the drive mechanism are integrally formed. With the above configuration, the number of parts can be greatly reduced, and a self-propelled recording device that can easily achieve improvement in strength and dimensional accuracy is provided.

According to the second aspect of the present invention, a recording device for recording on a recording material by the recording means is capable of recording while traveling on the recording material while being self-propelled and coupled with a paper guide unit. In a self-propelled recording device capable of forming a stationary recording device by means of a self-propelled driving roller that becomes a paper feed roller when combined with a paper guide unit and a traveling drive roller at the time of self-driving recording, The running drive roller is rotatably supported by a plurality of intermediate bearing portions arranged at intermediate positions in the axial direction, and each intermediate bearing portion has a recording material side for ensuring contact between the self-driving roller and the recording material. Since the opening is formed, it is possible to greatly reduce the torsional strain when driving the self-propelled drive roller,
Provided is a self-propelled recording apparatus capable of performing highly accurate paper feeding and recording without skewing and avoiding interference between an intermediate bearing portion and a recording material.

According to the inventions of claims 3 to 5, in addition to the construction of claim 2, the outer diameter of the portion of the self-propelled drive roller supported by the intermediate bearing portion is equal to the outer diameter of the self-propelled drive roller. The same or slightly smaller than that, a structure in which a dry bearing material is coated on the contact portion of the intermediate bearing portion with the self-propelled drive roller, or both end portions of the self-propelled drive roller are supported by shaft end bearing portions. In addition, since the outer diameter of the portion of the self-propelled drive roller supported by the intermediate bearing portion is the same as the outer diameter of the self-propelled drive roller,
Even more efficiently, it is possible to greatly reduce the torsional distortion when driving the self-propelled drive roller, perform highly accurate paper feed and recording without skewing, etc. There is provided a self-propelled recording device capable of avoiding the interference of.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a self-propelled recording apparatus suitable for applying the present invention.

FIG. 2 is a schematic perspective view of a stationary recording device in which a paper guide unit is coupled to the self-propelled recording device of FIG.

FIG. 3 is a schematic perspective view of the configuration of a first embodiment of a self-propelled recording apparatus to which the present invention is applied, as viewed from the recording material side.

FIG. 4 is a partial perspective view schematically showing the structure of an ink ejection portion of the recording means in FIG.

FIG. 5 is a schematic perspective view of the configuration of a second embodiment of a self-propelled recording apparatus to which the present invention is applied, as seen from the recording material side.

FIG. 6 is a schematic perspective view of the configuration of a third embodiment of the self-propelled recording apparatus to which the present invention is applied, as seen from the recording material side.

7 is a schematic vertical sectional view of an intermediate bearing portion of the recording apparatus of FIG.

FIG. 8 is a schematic perspective view of the configuration of a fourth embodiment of the self-propelled recording apparatus to which the present invention is applied, as seen from the recording material side.

[Explanation of symbols]

 10 Self-propelled recording device (self-propelled recording unit) 11 Paper guide unit 12 Recording material (recorded material) 13 Operation part 14 Display part 16 Recording material 17 Split lever 20 Chassis base 21 Guide rail part 22 Guide rail part 23 Carrier (carrier head = recording means) 24 Drive pulley 25 Driven pulley 28 Carrier rope 29 Carrier motor 30 Slip line 31 Contact brush 34 Support part 35 Bearing part 36 Auxiliary wheel 37 Self-propelled driving roller 38 Paper feed motor 41 Reduction gear 42 Bearing part 43 bearing portion 44 lead screw 45 lead groove 46 bracket portion 51 intermediate bearing portion 52 arm portion 53 opening portion 54 bearing shaft portion 55 dry bearing material 56 shaft end bearing portion 57 shaft end bearing portion 81 discharge port surface 82 discharge port 84 liquid path 85 Electrothermal converter

Claims (8)

[Claims] 1. A recording apparatus for recording on a recording material by a recording means, which is capable of recording while traveling along the recording material, and which is a stationary recording apparatus by coupling with a paper guide unit. In a self-propelled recording apparatus that can be configured, a chassis base includes a guide rail portion that guides and supports a carrier that constitutes a recording unit, a slip line electrically connected to the carrier, and a self-propelled driving roller. A self-propelled recording apparatus, wherein a bearing portion, a support portion for axially supporting an auxiliary wheel, and a drive mechanism attachment portion for attaching a drive mechanism are integrally formed. 2. A recording device for recording on a recording material by a recording means, which is capable of recording while traveling along the recording material, and which is of a stationary type by combining with a paper guide unit. A self-propelled recording apparatus that can be configured includes a self-propelled drive roller that functions as a paper feed roller when combined with a paper guide unit and a propellant drive roller during self-propelled recording, and the self-propelled drive roller is an axial intermediate It is rotatably supported by a plurality of intermediate bearing portions arranged at positions, and an opening is formed on the recording material side of each intermediate bearing portion for ensuring contact between the self-propelled drive roller and the recording material. Self-propelled recording device characterized by. 3. The self-propelled type according to claim 2, wherein an outer diameter of a portion of the self-propelled drive roller supported by the intermediate bearing portion is equal to or slightly smaller than an outer diameter of the self-propelled drive roller. Recording device. 4. The self-propelled recording apparatus according to claim 2, wherein a dry bearing material is coated on a contact portion of the intermediate bearing portion with the self-propelled driving roller. 5. The both ends of the self-propelled drive roller are supported by shaft end bearing portions, and the outer diameter of the portion of the self-propelled drive roller supported by the intermediate bearing portion is the outer diameter of the self-propelled drive roller. The self-propelled recording apparatus according to claim 2, wherein the recording apparatus is the same as the recording apparatus. 6. The recording apparatus according to claim 1, wherein the recording unit is an inkjet recording unit that ejects ink to record. 7. The recording apparatus according to claim 6, wherein the recording unit is an inkjet recording unit including an electrothermal converter that generates thermal energy used for ejecting ink. 8. The recording apparatus according to claim 7, wherein the recording unit ejects the ink from the ejection port by utilizing film boiling generated in the ink by the thermal energy generated by the electrothermal converter.