JPH06344545A - Transfer type inkjet recording device - Google Patents

Abstract

(57) [Summary] [Object] To reliably transfer an ink image from a transfer medium in a transfer type ink jet recording apparatus. [Structure] A pressure roller is provided with a rotational speed difference or a skew angle so that a transfer medium and a recording sheet are slipped in a transfer state, and a peeling force by a shearing force is applied to an ink image on the transfer medium to form an ink image. Facilitates peeling from the transfer medium,
Transfers to recording paper with high efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus. More specifically, the present invention relates to a transfer type inkjet recording apparatus that forms an ink image on a transfer medium and then transfers the ink image to the recording medium to obtain the ink image on the recording medium.

[0002]

2. Description of the Related Art A transfer type ink jet recording apparatus is capable of high reliability printing without ink clogging due to ink jet clogging caused by unintended contact between recording paper or paper dust and a recording head. Is obtained. As such a transfer type inkjet printer, the configurations described in US Pat. No. 4,538,156 and US Pat. No. 5,099,256 are known.

In these apparatuses, an ink jet recording head (hereinafter referred to as a recording head) having a plurality of nozzles with respect to a cylindrical ink image holding medium with a gap therebetween.
Is provided. In the device of US Pat. No. 4,538,156, the nozzles of the recording head are arranged in the axial direction of the ink image holding medium. Ink image recording on the recording paper is performed by an ink image writing process on the ink image holding medium and a transfer process for transferring the ink image on the recording paper. In the ink image writing step, the recording head forms an ink image on the cylinder while moving in the axial direction of the ink image holding medium by a fixed amount per rotation in synchronization with the rotation of the cylindrical ink image holding medium. The pre-recorded area is scanned by a plurality of rotations of the ink image holding medium. In both of the devices, in the transfer step, a recording paper, which is a recording medium, is brought into contact with the ink image holding medium and pressed from behind to transfer the ink image onto the recording paper. Then, the recording paper is peeled off from the ink image holding medium and discharged.

As described above, the ink image is formed on the cylindrical ink image holding medium formed of a material such as silicone rubber which has a small ink bleeding and which can easily remove the adhered ink.
If this ink image is semi-dried and then transferred to a recording sheet, it can be printed on the recording sheet without causing ink bleeding.

[0005]

On the other hand, on the other hand, since the ink is in a semi-dried state at the time of transfer,
The adhesiveness of the ink to the recording paper is reduced, and in particular, in a pattern formed by continuous dots such as a line segment, a part of the ink image is likely to be untransferred, which may deteriorate the print quality. .

In the printer of the type in which the image once formed on the image holding drum is transferred to the recording sheet, it is also proposed to provide a speed difference between the image holding drum and the recording sheet in order to improve the transfer efficiency. (Japanese Patent Laid-Open No. 4-70
No. 785), the technique disclosed here is to transfer an image held by electrostatic force to a recording sheet by electrostatic force, and is used as it is for a printing method that does not use electrostatic force at the time of transfer like an inkjet printer. Cannot be used.

The present invention has been made in view of the above problems, and its purpose is to make it possible to reliably transfer the ink of the ink image holding drum onto the recording paper regardless of the dry state of the ink. Another object of the present invention is to provide a transfer type inkjet recording device.

[0008]

SUMMARY OF THE INVENTION To solve the above problems, the present invention provides an ink jet recording head which ejects ink droplets corresponding to recorded data, and an ink which is elastically deformable upon receiving the ink droplets. A transfer type including an image holding unit and a pressing roller that is arranged so as to advance and retreat in a transfer area of the ink image holding unit and has a rotation speed set so as to cause slippage in a state where a nip pressure is applied to the ink image holding unit. The ink jet recording apparatus is characterized in that the movement driving mechanism of the ink image holding means and the rotation driving mechanism of the pressing roller are connected.

Further, the ink image holding means is constituted by an end belt, and a pinch roller for sandwiching the end belt is provided after the transfer area of the end belt.

Further, an ink jet recording head for ejecting ink droplets corresponding to the data to be recorded, an ink image holding means which receives the ink droplets and is elastically deformable, and a reciprocating area of the ink image holding means. A press roller that is arranged so as to be capable of holding and is held at a predetermined angle with respect to the moving direction of the ink image holding means so that the ink image holding means slides under a nip pressure applied thereto. I am trying.

Further, the predetermined angle is 85 to 85 in the axial center direction of the pressing roller with respect to the moving direction of the ink image holding means.
It is characterized by being in the range of 95 degrees.

[0012]

According to the above method, when the ink pattern formed on the ink image holding means reaches the transfer area, the recording paper is pressed against the ink image by the pressing roller. Since the pressure roller slides while applying pressure to the ink image holding means, the recording paper gives a shearing force between the ink image holding means and the ink image, and the ink image is transferred onto the surface of the ink image holding means. Will be easily torn off.

[0013]

EXAMPLES The ink jet recording apparatus of the present invention will be described in detail below with reference to examples.

FIG. 1 is a perspective view of the ink jet printer of the first embodiment. An inkjet recording head 2 and a pressing roller 3 that is a transfer unit are arranged around an ink image holding drum 1 that is an ink image holding medium.

The recording head 2 is a line type ink jet recording head using a piezoelectric element, and has a plurality of nozzles at regular intervals in the axial direction of the ink image holding drum 1. In the case of the present embodiment, the recording head 2 has 512 nozzles at a pitch of 16/600 inches, and the head moving device 21 causes the recording head 2 to move in the axial direction of the ink image holding drum 1.
The head is moved by 1/600 inch per one rotation of the ink image holding drum 1, and the image for one page of the ink image holding drum is formed by 16 rotations.

Similar to an ordinary serial printer, each of these nozzle openings communicates with a pressure chamber to which ink is supplied from an ink tank, and a piezoelectric element or a heating element provided in these pressure chambers. The energy generating source is activated by the print data, and the ink in the pressure chamber is ejected from the nozzle opening.

The ink image holding drum 1 is rotatably supported by a frame (not shown), and an elastic layer made of silicone rubber is laminated around a metal tube, and the elastic layer is recorded in a shaded area in the figure. It is divided into two areas, an area 11 and a non-recording area 12 not shaded. In the case of this embodiment, 8
The ink image holding drum 1 having a diameter of 0 mm is used. Further, the elastic layer is preferably a rubber material that easily peels off the ink image,
In addition to silicone rubber, fluorosilicone rubber, fluororubber and the like can be used.

The pressing roller 3 has a material having a friction coefficient with respect to the recording paper 4 which is larger than that of the recording paper 4 with respect to the ink image holding drum 1, for example, a friction layer such as rubber or ceramic sprayed on the surface, and is provided on a frame (not shown). The fixed support shaft 31 is pivotally supported by a pressing lever 32 having a swing shaft. The pressing roller 3 is driven to rotate by the opening / closing motor 35, and reciprocates in the direction of arrow C in the figure by the rotation of the pressing opening / closing shaft 34 which is rotatably supported by a frame (not shown) and whose outer shape is an eccentric cam. However, the structure is such that it can be pressed and released. The transfer pressure is generated by the transfer pressure applying means 33, and is controlled in the range of 5 to 50 kg weight in this embodiment.

The ink image holding drum 1 has a drum gear 5
3, it is connected to the pulse motor 5 via the drum-side intermediate gear 52 and the motor gear 51, and is rotationally driven in the direction of arrow A in the figure. The pressing roller 3 is connected to the drum-side intermediate gear 52 via the roller gear 55 and the roller-side intermediate gear 54, and the speed difference ΔV is set so that the pressing roller 3 slips with the surface peripheral speed V1 of the ink image holding drum 1. With speed V2,
It is configured to be rotationally driven in the direction of arrow B in the figure.

The outer diameter of the ink image holding drum 1 is D1, the outer diameter of the pressing roller 3 is D2, and the number of teeth of the drum gear 53 is Z5.
3, and the number of teeth of the roller gear 55 is Z55, the transmission ratio of the transmission mechanism is expressed by the following equation.

(D1 / D2) ≠ (Z53 / Z55) As the transmission mechanism, a toothed belt mechanism, a pulley mechanism or the like can be used in addition to the gear mechanism of this embodiment.

The drum origin detection plate 13 is fixed to the ink image holding drum 1, the ink image holding drum 1 rotates, and when the head of the recording area 11 reaches the recording head 2, the origin detector 14 outputs an origin signal. The generated print data is output to the recording head 2 and the ink droplets are ejected to form an ink image on the ink image holding drum 1.

Next, the operation of the apparatus thus constructed will be described with reference to FIG.

In a state where the pressure roller 3 is separated from the ink image holding drum 1 (FIG. 2A), the ink image holding drum 1 is rotated at a constant speed V1, an origin signal is generated, and the writing start position is the recording head. At the time of facing 2, the print data from the host or the like is output to the recording head 2. The ink droplets ejected from the recording head 2 sequentially form an ink image matching the print data on the surface of the ink image holding drum 1.

When an ink image is formed while the ink image holding drum 1 is rotated in this way, the ink image is in a semi-dried state due to evaporation of the solvent constituting the ink.
A predetermined amount of ink image, for example, one page of ink is formed on the ink holding drum 1.
At the stage when the recording sheet 4 is formed, the recording sheet 4 is fed by the sheet feeding device 37 in the direction of arrow D in the figure to the transfer area at the timing when the writing start position of the ink image holding drum 1 moves to the transfer area. When the leading edge of the recording paper 4 reaches the printing area, the pressing opening / closing shaft 34 rotates, and the transfer pressure applying means 33 moves the pressing roller 3 in the direction of arrow E in the figure, so that the ink image holding drum 1 is predetermined. Press with the nip pressure of.

As a result, the recording paper 4 is sandwiched between the ink image holding drum 1 and the pressing roller 3, and is pressed against the ink pattern image with a constant force by the pressing force from the pressing roller 3 (see FIG. 2B. )) And thereafter, while maintaining this state, the ink image on the ink image holding drum 1 is transferred to the recording paper 4.

In this process, since the pressing roller 3 has a larger frictional resistance with respect to the recording paper 4 than the ink image holding drum 1, the recording paper 4 moves at a speed V2 which matches the peripheral speed V2 of the pressing roller 3 as much as possible. To do. As a result, the recording paper 4 has a speed difference ΔV = | V1-V2 | with respect to the peripheral speed V1 of the ink image holding drum 1, and the ink image has a difference between the ink holding drum 1 and the recording paper 4. The ink image and the surface of the ink holding drum 1 are made of a rubber material that easily separates from each other due to a shearing force that tends to slip, and the ink image and the recording sheet 4 easily stick to each other. It is peeled off from the surface of the sheet and transferred to the recording sheet 4 with high efficiency.

When the transfer for one page is completed in this way, the pressing opening / closing shaft 34 is rotated, the pressing roller 3 is separated from the ink image holding drum 1 and the pressing is released, and the printing for one page is completed. .

According to this embodiment, the transfer ratio of the transfer mechanism can always obtain a constant speed difference even if a load change such as a pressing force occurs, and a compact and inexpensive transfer device can be realized with a simple mechanism. It becomes possible.

In this embodiment, the case where the line type recording head is used has been described as an example, but it is clear that the same effect can be obtained even if the serial type recording head is used.

The second embodiment is shown in FIG. The apparatus of the present embodiment shows an embodiment in which the ink holding means is constituted by an end belt, and the reference numeral 6 in the figure is an ink image holding means constituted by the end belt, which is a thin plate base material made of spring steel or the like. An elastic material such as the above-mentioned silicone rubber is adhered to the surface of the.

The length of the recording area of the ink image holding belt 6 is at least one page of the recording paper 4 or more, and each end is connected to the unwinding pulley 61 and the winding pulley 62. Between the unwinding pulley 61 and the take-up pulley 62 is in contact with the outer periphery of the feed drum 65, and at the time of standby, the head portion of the recording area 11 stops at a position facing the recording head 7, and the unwinding pulley 61 side. It is wound around and tensioned so that there is no slack.

The ink image holding belt 6 is provided with a feed drum 65.
The nip pressure is applied by a pinch roller pressurizing means (not shown), and it is moved by a frictional force with the feed drum 65. Feeding drum 65
Is rotated by the pulse motor 5 in the direction of arrow F in the figure,
The ink holding belt 6 moves in the direction of arrow G in the drawing (hereinafter referred to as the main scanning direction), the recording area is unwound from the unwinding pulley 61, and at the same time, the winding motor 64 is arranged so that the ink holding belt 6 does not loosen. It is pulled up by the take-up pulley 62 side driven by.

The recording head 7 is a serial type ink jet recording head using a piezoelectric element and has a plurality of nozzles at regular intervals in the main scanning direction of the ink image holding belt 6. In the case of the present embodiment, the recording head 7 is moved in the moving direction of the ink image holding belt 6 at a pitch of 1/600 inch.
It has a number of nozzles and is installed with a predetermined gap with respect to the ink holding belt 6, and is moved by the head moving device 71 in a direction perpendicular to the main scanning direction of the ink image holding belt 6 (hereinafter referred to as the sub-scanning direction). ) To reciprocate.

Similar to the recording head 2 of the first embodiment, each of these nozzles is configured to eject ink from the nozzle opening.

The feed drum 65 is connected to the pulse motor 5 via a drum gear 53, a drum-side intermediate gear 52, and a motor gear 51, and is rotationally driven in the direction of arrow F. The pressing roller 3 is connected to the drum-side intermediate gear 52 via a roller gear 55 and a roller-side intermediate gear 54, and has a speed difference ΔV so that the pressing roller 3 slips with the surface peripheral speed V1 of the ink image holding belt 6. It is configured to be rotationally driven in the direction of arrow H at speed V2. In addition to the gear mechanism of this embodiment, a toothed belt mechanism, a pulley mechanism or the like can be used as the transmission mechanism.

The surface peripheral velocity of the ink image holding belt 6 is V
1, the peripheral speed of the pressure roller 3 is V2, the number of teeth of the drum gear 53 is Z53, and the number of teeth of the roller gear 55 is Z55,
The transmission ratio of the transmission mechanism is expressed by the following equation.

(V1 / V2) ≠ (Z53 / Z55) Next, the operation of the apparatus thus constructed will be described with reference to FIG.

During standby, as described above, the head of the recording area of the ink holding belt 6 is stopped at a position facing the recording head 7, and the pressing roller 3 is separated from the ink holding belt 6.

When a print start command is issued, the recording head 7
Starts forward movement in the sub-scanning direction by the head drive device 71, and at the same time, print data according to the recording head position at the time of forward movement is output from the host or the like to the recording head 7, and the ink image 1
Writing of the line starts. When the forward movement of the recording head 7 is completed, the writing of the first line of the ink image is completed, and the ink holding belt 6 is moved by the feed drum 65.
The recording head 7 starts to move backward in the sub-scanning direction by the head driving device 71, and at the same time print data corresponding to the print head position at the time of returning is sent from the host or the like. The data is output to the recording head 7 and the second line is written. When the returning movement of the recording head 7 is completed, the writing of the second line of the ink image is completed, and the ink holding belt 6 is fed by the feed drum 65 by one pitch (64/600 inch). After that, the recording head 7 reciprocates until the print data of a predetermined amount is completed, and the ink holding belt 6 is intermittently fed to form an ink image on the ink holding belt 6.

When an ink image is formed while the ink image holding belt 6 is intermittently moved in this way, the ink image is in a semi-dried state due to evaporation of the solvent constituting the ink.

At the timing when the writing start position of the ink image holding belt 6 moves to the transfer area, the recording paper 4 is fed to the transfer area by the paper feeding device 37 in the direction of arrow D in the figure. When the front end of the recording paper 4 reaches the printing area, the pressing opening / closing shaft 34 rotates and the transfer pressure applying means 33 moves the pressing roller 3 in the direction of arrow E in the figure to apply a predetermined nip pressure to the ink image holding belt 6. Press down.

As a result, the recording paper 4 is nipped between the ink image holding belt 6, the feed roller 65, and the pressing roller 3,
The pressing force from the pressing roller 3 presses the ink pattern image with a constant force. Thereafter, while maintaining this state, the ink image on the ink image holding belt 6 is transferred to the recording paper 4.

In this process, as described above, since the pressing roller 3 has a larger frictional resistance to the recording paper 4 than the ink image holding belt 6, the recording paper 4 matches the peripheral speed V2 of the pressing roller 3 as much as possible. Move at speed V2. As a result, the recording paper 4 is rotated at the peripheral speed V of the ink image holding belt 6.
1 has a velocity difference ΔV = | V1−V2 |, and a shearing force is generated in the ink image between the ink holding belt 6 and the recording paper 4 so that the ink image and the ink holding belt are slipped. Since the ink image and the recording sheet 4 are easily adhered to each other, the ink image is separated from the surface of the ink image holding belt 6 and transferred onto the recording sheet 4 with high efficiency. .

When the transfer of one page is completed in this way, the pressing opening / closing shaft 34 rotates to separate the pressing roller 3 from the ink image holding belt 6 to release the pressing, and the ink holding belt 6 feeds the feeding roller 65. Is moved in the direction opposite to the main scanning direction, and at the same time, is taken up by the unwinding pulley 61 side driven by the unwinding motor 63, and stopped at a position where the recording head position of the ink holding belt 6 faces the recording head 7, The printing operation ends.

According to this embodiment, a constant speed difference can be obtained even if a load change such as a pressing force occurs due to the transmission ratio of the transmission mechanism, and a compact and inexpensive transfer device can be realized with a simple mechanism. . In addition, it is possible to increase the distance between the recording area and the transfer area, and it is possible to extend the time from the formation of the ink pattern to the transfer so that the ink image can be sufficiently dried, and if necessary, the ink image holding means. It is easy to dispose a cleaning unit for removing the ink image remaining on the ink, a heater and a blowing unit for volatilizing the solvent of the ink having a low drying rate.

A third embodiment is shown in FIG. The apparatus of this embodiment shows an embodiment constituted by a pressing roller held at a set angle with respect to the moving direction of the ink holding means, and the ink image holding drum 1 which is an ink image holding medium.
An inkjet recording head 2 and a skew pressing roller 8 as a transfer unit are arranged around the area.

FIG. 6 is a front view of the roller portion as seen from the direction of arrow J in the drawing, which is the feeding direction of the recording paper 4, and the axis lines of the ink holding drum 1 and the skew pressing roller 8 are parallel to each other. As shown in FIG. 7, in the plan view seen from the vertically upward direction of the arrow J direction in the drawing, the axial center lines of the ink holding drum 1 and the skew pressing roller 8 intersect at the skew angle θ with the axial center point as an intersection. It has been configured.

The ink image holding drum 1 has a drum gear 53,
It is connected to the pulse motor 5 via a motor gear 51 and is rotationally driven in the direction of arrow A in the figure.

Next, the operation of the apparatus thus constructed will be described.

When the skew pressing roller 8 is separated from the ink image holding drum 1, the ink image holding drum 1 is rotated at a steady speed V1, and when the origin signal is generated and the writing start position faces the recording head 2, the ink is discharged. As shown in FIG. 5, print data from the host or the like is output to the recording head 2 so that the ink image 15 on the surface of the holding drum 1 is formed obliquely at a skew angle θ with respect to the axial direction. The ink droplets ejected from the recording head 2 sequentially form an ink image matching the print data on the surface of the ink image holding drum 1.

When a predetermined amount of data is recorded on the ink image holding drum 1 as described above, the recording paper 4 is supplied from a direction perpendicular to the axial direction of the skew pressing roller 8 by a paper feeding device (not shown). When the front end of the recording paper 4 reaches the printing area, the skew pressing roller 8 is moved to the ink image holding roller 1 side, and the recording paper 4 is pressed against the ink pattern image. Thereafter, while maintaining this state, the ink image on the ink image holding drum 1 is transferred to the recording paper 4.

In this process, the skew pressing roller 8
Since the frictional resistance against the recording paper 4 is larger than that of the ink image holding drum 1, the recording paper moves in a direction perpendicular to the axial direction of the skew pressing roller 8. As a result, the recording paper 4 skews at a skew angle θ with respect to the direction perpendicular to the axis of the ink image holding drum 1, and the surface of the ink image holding drum 1 and the recording paper 4 slip within the nip width. The slip amount can be represented by (nip width) × tan (skew angle θ). Then, a shearing force that tends to slip between the ink holding drum 1 and the recording sheet 4 is generated in the ink image, and the ink image and the surface of the ink holding drum 1 are made of a rubber material that easily separates from each other. Since the ink image is easily adhered to the paper 4, the ink image is separated from the surface of the ink image holding drum 1 and transferred onto the recording paper 4 with high efficiency.

When the transfer for one page is completed in this way, the skew pressing roller 8 is separated from the ink image holding drum 1 and the pressing is released to complete the printing for one page.

The skew angle θ is 5 degrees or less (the angle in the axial center direction of the pressing roller with respect to the moving direction of the ink image holding medium is 85 to 95 degrees). A state occurs in which the ink holding drum 1 is disengaged and is not pressed. The skew pressing roller 8 is preferably 3 degrees or less (the angle of the axial direction of the pressing roller with respect to the moving direction of the ink image holding medium is 87 to 93 degrees).
As a result, the amount of slippage of the ink image holding drum 1 is relatively small, and it is possible to obtain a high-quality transfer image with almost no deviation of the ink image during transfer.

According to this embodiment, since the pressing roller presses at a predetermined skew angle, a constant slip ratio can always be obtained even if load fluctuations such as pressing force occur, and a simple mechanism is small and inexpensive. It becomes possible to realize a transfer device.

In this embodiment, the case where the line recording head is used has been described as an example, but it is clear that the same effect can be obtained even if the serial recording head is used.

[0058]

As described above, in the present invention,
An ink jet recording head that ejects ink droplets corresponding to recorded data, an ink image holding unit that receives the ink droplets and that is elastically deformable, and an ink image holding unit that is arranged so as to be capable of advancing and retracting in a transfer area of the ink image holding unit Since a pressure roller having a rotational speed difference or a skew angle is set so as to cause a slip when the nip pressure is applied to the ink, shearing is performed on the ink image that has become semi-dry on the surface of the ink image holding means. An ink image can be reliably transferred to a recording medium by exerting a peeling force by force, print quality can be improved and the cleaning interval of the ink image holding means can be extended with a simple mechanism, which is small and inexpensive. A transfer device of high quality can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of an ink jet printer showing a first embodiment of the present invention.

FIG. 2 is a view for explaining the operation of the inkjet printer showing the first embodiment of the present invention.

FIG. 3 is a perspective view of an ink jet printer showing a second embodiment of the present invention.

FIG. 4 is a view for explaining the operation of the inkjet printer showing the second embodiment of the present invention.

FIG. 5 is a perspective view of an ink jet printer showing a third embodiment of the present invention.

FIG. 6 is a front view illustrating the configuration of an inkjet printer showing a third embodiment of the present invention.

FIG. 7 is a plan view illustrating the configuration of an inkjet printer showing a third embodiment of the present invention.

[Explanation of symbols]

 1: Ink holding drum (ink holding medium) 2: Recording head (line type) 3: Pressing roller (transfer means) 4: Recording paper (recording medium) 5: Pulse motor 6: Ink holding belt 7: Recording head (serial type) ) 8: Skew pressing roller 11: Recording area 12: Non-recording area 13: Drum origin detection plate 14: Origin detector 15: Ink image 21: Head moving device 31: Spindle 32: Press lever 33: Transfer pressure applying means 34 : Pressing open / close shaft 35: Opening / closing motor 51: Motor gear 52: Drum-side intermediate gear 53: Drum gear 54: Roller-side intermediate gear 55: Roller gear 65: Feed drum 66: Pinch roller

Claims (4)

[Claims] 1. An inkjet recording head for ejecting ink droplets corresponding to recorded data, and the ink droplets,
An elastically deformable ink image holding means and a pressing roller arranged so as to be able to move forward and backward in a transfer area of the ink image holding means and having a rotational speed set so as to cause a slip when a nip pressure is applied to the ink image holding means. A transfer-type ink jet recording apparatus comprising: a transfer drive mechanism of the ink image holding means and a rotation drive mechanism of a pressing roller, which are connected to each other. 2. The ink image holding means is composed of an endless belt, and a pinch roller for sandwiching the endless belt is provided after the transfer area of the endless belt moving path. 1. The transfer type inkjet recording device according to 1. 3. An ink jet recording head for ejecting ink droplets corresponding to recorded data, and receiving the ink droplets,
An elastically deformable ink image holding means, and a movement of the ink image holding means, which is arranged so as to be able to advance and retreat in a transfer area of the ink image holding means, so that the ink image holding means slides in a state where a nip pressure is applied to the ink image holding means. A transfer-type ink jet recording apparatus comprising a pressing roller held at a predetermined angle with respect to a direction. 4. The predetermined angle is 85 to 95 in the axial center direction of the pressing roller with respect to the moving direction of the ink image holding means.
4. The transfer type ink jet recording apparatus according to claim 3, wherein the transfer type ink jet recording apparatus is in a range of degrees.