JP2000158636A - Image recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a stable image by a chemical setting agent by utilizing a printer having a structure which is not changed so much from a conventional one. SOLUTION: A chemical setting agent 11 is coated on a surface of a transfer medium 21 while the transfer medium 21 passes through a recording layer coating means 10. After that, the transfer medium 21 is conveyed to a recording means 30 and liquid drops are ejected in accordance with an image signal to form a visible image. A transfer paper 42 supplied from a paper supplying means 40 is fed to a transferring means 50 in synchronism with a visible image region of the transfer medium 21 and the visible image is transferred to the transfer paper 42, then the transfer paper 42 is discharged from a paper discharge means 60 to be stocked. The chemical setting agent 11 remaining on the transfer medium 21 is removed by means of a cleaning means 70 on an as-needed basis. When a second or a third paper supplying means is added, it is possible to print on a paper directly and to print thereon after coating the chemical setting agent thereon. When a paper reversing means and paper resupplying means are provided, it is possible to perform perfecting printing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer type recording apparatus using a droplet ejecting apparatus, and more particularly, to uniformly forming droplets ejected from a droplet ejecting apparatus on an intermediate transfer member in accordance with an image signal. The present invention relates to a so-called transfer type recording apparatus that forms a visible image on the intermediate transfer body by spraying the powder on the obtained powder, and then transfers the visible image onto plain paper.

[0002]

2. Description of the Related Art In a recording apparatus such as an ink jet recording apparatus which performs recording by ejecting a liquid containing a coloring material as liquid droplets in accordance with an image signal, recording is performed with less bleeding on plain paper such as high quality paper. That is an important technical issue. For this reason, various inventions have conventionally been proposed. These conventional techniques for plain paper can be roughly divided into the following three methods. (1) A method in which an ink curing agent is dropped in the same place at the same time as when the ink is dropped on the recording paper, or before and after the dropping. For example, JP-A-6-92009 and JP-A-6-9201
In the invention described in Japanese Patent Publication No. 0, the ink curing agent is dropped on the same location of the recording paper at the same time as before or after the ink is dropped on the recording paper only in the area where the ink droplet is dropped on plain paper. This prevents bleeding on the recording paper.
However, in the present invention, there is a disadvantage that a unit dedicated to the ink curing liquid is required, and that the recording time is longer than usual because the curing time is required.

(2) A method in which a recording paper is coated in advance with a component for reducing ink bleeding, and after recording, the component is fixed on the recording paper. For example, the invention described in Japanese Patent Application Laid-Open No. 5-97720 discloses a method in which particles for reducing ink bleeding are applied to plain paper in advance, and after fixing the ink, the particles are fixed on the paper. However, in the present invention, since the particle component is a component that shows a reaction such as dissolution with respect to the ink, after fixing the particles, the paper shows a reaction such as dissolution with water or oil as the ink solvent. There is a fear that the storage stability after recording is poor.

(3) A method of using an intermediate transfer member to increase the viscosity of ink before transferring it to recording paper. For example, JP-A-7-8
The invention described in Japanese Patent No. 9067 is a recording apparatus called an intermediate transfer body type ink jet, in which an ink image is once formed on an intermediate transfer body, and is transferred to a recording paper when a moderate viscosity is reached. It tries to solve ink bleeding and the like. However, the invention described in the publication is to apply a surfactant to the intermediate transfer member in advance to increase the wettability, and therefore, it takes a considerable time until the viscosity becomes moderate, and therefore, Blurring occurs on the intermediate transfer body and eventually on the recording paper, and is not suitable for high-speed recording. In particular, the blur is large in the case of a solid image, for example,
Even if it is attempted to increase the speed by calibrating with a line printer or the like, there is a limit to the increase in speed due to this bleeding.

In order to solve the problems in these methods, the present applicant has previously filed Japanese Patent Application Nos. 9-359308 (hereinafter referred to as "first application 1") and 9-359208 (hereinafter referred to as "first application"). 2), using plain paper, inserting it into the device as plain paper, and after printing, using a transfer type recording device using a droplet ejecting device that ejects the inserted plain paper from the device. We have already proposed a recording method and a recording apparatus which have minimum bleeding, excellent water resistance, excellent preservability of paper after printing, and capable of high-speed recording.

[0006]

However, the inventions according to the above-mentioned prior applications 1 and 2 are directed to a transfer type recording apparatus using a droplet ejecting apparatus. Later, since the inserted plain paper can be discharged from the recording apparatus as it is, some functions have to be added, and measures against jams and the like are required. The present invention has been made for the purpose of satisfying these needs and realizing it as an apparatus.

[0007]

According to a first aspect of the present invention, there is provided a recording apparatus for forming a visible image by depositing a droplet on a transfer body in accordance with an image signal, and transferring the visible image onto a recording medium. A recording layer applying means for applying a chemical setting agent onto the transfer body; a printing means for ejecting droplets onto the transfer body on which the chemical setting agent has been applied in accordance with an image signal; Means, transfer means for transferring the image on the transfer body to the transfer paper, paper discharge means for discharging and stocking the transferred transfer paper, and removing an unused chemical setting agent on the transfer body. Cleaning means.

According to a second aspect of the present invention, in the first aspect of the present invention, a second paper feeding means is provided immediately before the printing means, and printing is performed directly on the paper sent from the second paper feeding means. It was made.

According to a third aspect of the present invention, in the first aspect of the present invention, a third paper supply means is provided immediately before the recording layer applying means, and the recording is performed on the paper sent from the third paper supply means. After the chemical setting agent is applied by the layer applying means, printing is performed by the printing means.

According to a fourth aspect of the present invention, in the first aspect of the invention, there is provided a paper reversing means for reversing the transfer paper after being transferred by the transfer means, and a paper reversing the paper reversed by the reversing means. Re-feeding means for supplying the paper to the means.

[0011]

FIG. 1 shows a basic configuration of an embodiment of the present invention, and its configuration and operation will be described.

In the apparatus of the present invention, the chemical setting agent (the powder uniformly formed on the intermediate transfer member is not particularly limited to the powder, but can also be a semi-solid agent or a liquid material. Layer applying means 1 for applying a layer composed of
0, transfer means 20, printing means 30, paper feeding means 40, transfer means 50 and paper discharging means 60. In addition, a cleaning unit 70 for removing the chemical setting agent remaining on the transfer member is provided as needed.

When this apparatus receives a print start signal, first, the recording layer applying means 10 applies the chemical setting agent 11 to the transfer belt 21 of the transfer means 20. The supply stirring roller 13 and the application roller 15 are rotated by the driving force of the drive motor 12 attached to the recording layer application means 10. A blade 14 is in contact with the replenishing roller 13, so that the replenishing amount of the chemical setting agent 11 is adjusted and uniformized on the roller. The supply roller 13 and the application roller 15 are in contact with each other, and the chemical setting agent 11 from the supply roller 13 transfers to the application roller 15 and adheres uniformly.
A blade 16 is attached to the application roller 15 to make the chemical setting agent 11 on the application roller 15 thin and uniform, and to prevent the chemical setting agent 11 from leaking from the recording layer applying means 10. I have.

The transfer means 2 together with the recording layer applying means 10
0 also operates, and the chemical setting agent 11 is applied onto the transfer body 21 by the contact between the recording layer applying means 10 and the transfer body means 20. The transfer means 20 has three rollers 22, 23, 24,
It comprises a transfer body 21, a drive motor, a position control encoder, a housing, and the like. When the part of the transfer body 21 where the chemical set agent 11 is applied reaches the printing means 30,
The printing operation starts, and an image, a text, and the like are printed on the chemical setting agent 11 of the transfer body 21 by the printing unit 30.

FIG. 2 shows another embodiment of the printing means. The printing means comprises one or more line heads 33.
And so on. When the printing mechanism is constituted by the line head 33 instead of the one of the embodiment described in the shuttle system, printing and transfer are continuously performed. During or after printing is performed, the transfer paper 42 is sent out from the paper feeding device 40 and sent to the registration roller 46.

The timing is adjusted to the image or text printed on the transfer body 21 and the transfer paper 4
2, the image or the text on the transfer body 21 is transferred to the transfer paper 42 by the transfer means 50, and the paper discharge means 6
0 means paper is discharged and stocked. Normally, the chemical setting agent 11 that has not been involved in printing is left as it is, and is passed through the recording layer coating means 10 to overcoat a new chemical setting agent 11 for the next printing. The unused chemical setting agent 11 may be removed by the means 70. In particular, if the recording device is not used for a long time, the unused chemical set agent 11 should be cleaned by the cleaning means 70.

The recording layer coating means 10 has a hermetically sealed structure as a whole, and its opening is made slightly larger than the portion where the coating roller 15 comes into contact with the transfer member 21, and is coated with a blade 16 attached before and after the coating roller 15. The roller 15 is sealed. Normally, an amount detection sensor provided in a replenishing storage section in which the replenishing roller 13 and the application roller 15 are stored detects the amount of the chemical setting agent 11, and when the shortage is detected, the chemical setting agent 11 is replenished from the hopper. A constant amount of the chemical set agent 11 is always stored in the replenishment storage section. Chemical setting agent in hopper 11
Disappears and the amount detection sensor keeps detecting, the chemical setting agent 11 is displayed on an operation panel (not shown).
A lamp for urging the user to supply light is turned on, and the apparatus is stopped. A part of the recording layer coating means 10 can be opened, and the user can be replenished by opening it. Normally, the recording layer applying unit 10 is separated from the transfer body 21 by a cam, and when a print signal is input, the replenishing roller 13 and the applying roller 15 are rotated by the drive motor 12, and the coating roller 15 is Set agent 11
Is uniformly applied.

At this time, if the amount detecting sensor is activated and the chemical setting agent 11 is insufficient, replenishment is performed. If the chemical setting agent 11 in the hopper is insufficient and the amount detecting sensor is kept operating, the operation is started. A lamp for prompting the user to supply the chemical setting agent 11 is turned on on the panel, and the printing operation is stopped. The supply roller 13 and the application roller 15 for a certain time
Rotates, and the chemical setting agent 11 is placed on the supply roller 13.
Is applied uniformly, the actual printing operation starts. When this signal is output, the cam that caused the recording layer coating unit 10 to separate from the transfer member 21 comes off, and the supply roller 13 and the transfer member 21 are separated.
Are brought into contact with each other, and the operation for applying the chemical setting agent 11 to the transfer body 21 is started. At this time, the drive unit of the transfer member means 20 operates, the transfer member 21 starts to move, and the chemical set agent 11 is applied on the transfer member 21. The transfer member 20 is a transfer member 21
And three rollers 22, 23, and 24 and a drive unit.

In this embodiment, the transfer member 20 is formed in a belt shape.
It may be in the form of a drum. As shown in the enlarged view of the portion A of the transfer body 21 in FIG.
b and the receiving layer 21c. The transfer body 21 is divided into an elastic portion and an inelastic portion in terms of image transferability after image formation and image accuracy. The substrate 21a is
In this embodiment, PET (polyethylene terephthalate) is used because it is necessary to have flexibility along the surfaces of the rollers 22, 23, and 24. However, a material such as polyimide may be used as long as it has flexibility. Alternatively, a SUS (stainless steel) band may be used.

In order to accurately feed the transfer body 21 driven by the roller 22 with the belt, the elastic modulus of the base 21a is set to be 50 times or more the elastic modulus of the receiving layer 21c. The adhesive layer 21b is formed on the material of the substrate 21a and the receiving layer 21c.
It is necessary to select a material capable of exhibiting an adhesive force. In this embodiment, a rubber-based adhesive is selected, but an epoxy-based adhesive may be used. The receiving layer 21c is a layer for receiving the chemical setting agent 11, and in the present invention, a material exhibiting adhesion (a polymer such as a silicone rubber or a nitrile rubber may be used) is employed.
In this embodiment, silicon rubber (rubber hardness JIS 35 degrees)
You are using The prior application 2 describes a method in which the chemical setting agent 11 is applied with an electrostatic charge. In this case, the receiving layer 21c may be made of an insulator (for example, a rubber having low conductivity). Silicon rubber may be used. In this embodiment, the substrate 21a is made of PET having a thickness of 0.1 mm, the receiving layer 21c is made of silicone rubber, and the thickness of the entire transfer body 21 is set to 0.5 mm. In addition, the belt is an endless belt, a non-stopping prevention means is arranged on the entire circumference, and the driving of the belt is controlled by a roller 22.

The roller 22 is used as a driving roller, and a material having an appropriate coefficient of friction is disposed on the roller surface to generate a belt driving force, and tapered on both sides to prevent the belt from shifting. Although there are several possible non-stopping means, a drum roller or the like may be used. Further, the transfer member 20 may be provided with a tie toner for preventing belt loosening. The chemical set agent 11 is applied to the transfer body 21, and the belt is conveyed. However, a marker may be provided on the transfer body 21, the position thereof may be detected, printing timing may be taken, and the feed amount may be counted. Position control.

The printing means 30 comprises a print head 31 and its auxiliary section (ink supply section, etc.) 32 or, in the case of shuttle printing, a carriage, its running mechanism and a drive section. In the present embodiment, the transfer member 21 is disposed at a position outside the printing area of the transfer member 21 in the present embodiment.
When a print signal is input, preparation for printing starts. First, the print head 31 moves to the maintenance and escaping section 80, in which ejection, blade cleaning, air suction, and the like are performed, and the apparatus stands by. When the transfer body 21 coated with the chemical setting agent 11 comes to the printing area, the printing operation starts to be performed, and the printing is performed together with the reciprocation of the carriage. The operations of the carriage and the transfer body 21 are controlled, and a printing operation is performed. On the way, the carriage moves to the maintenance / retraction unit 80 as necessary, and the print head 31 performs a print maintenance operation. Even when a line head is used, the above operation is the same, and it is easier to move the line head shown in FIG. .

The paper supply means 40 comprises a paper supply cassette 41, transfer paper 42, paper separation section 43, registration rollers 46 and the like. The printing operation starts after the printing signal is input,
At the same time, the paper feeding operation starts, but the paper feeding operation may be performed after the print start signal is output. First, preparations are made to send out the transfer paper 42 from the paper feed cassette 41, and one sheet is separated by a pickup roller and a separation roller constituting the paper separation unit 43, and sent to the registration roller 46. When an image or text or the like is formed on the transfer body 21 and sent, the registration roller 46 operates and the paper is sent to the transfer means 50 at the same time.

The transfer means 50 includes a transfer roller 51, a pressing unit, a retracting unit, and the like. Normally, the transfer roller 51
Is separated from the roller 23 by the retracting portion. Transcript 2
When the transfer paper 42 is sent to the transfer means 50 in a timely manner with the image or text or the like formed and sent to the printer 1, the retraction unit is removed before or immediately before the transfer, and is transferred by the pressing unit. The roller 51 comes into contact with the roller 23 with pressure. The transfer body 21 and the transfer paper 42 are
The image or text is transferred to paper when pressure is applied. At this time, as described in the above-mentioned prior application 1, a heater may be provided in the transfer roller 51 or the roller 23 to add a fixing function. When the chemical setting agent 11 using the adhesive property is used, the paper 4
2, the chemical setting agent 11 having formed an image has a strong bonding force with paper and improves transferability. The transfer roller 51 or the roller 23 may be naturally fixed without providing a separate fixing function, or a fixing roller or a fixing plate having a fixing function may be provided in front of the transfer roller 51.

The transfer paper 42 onto which the image has been transferred is discharged
0 and the paper is stored in a paper discharge stocker.

The transfer body 21 that has passed through the transfer means 50 has
The chemical setting agent 11 remains in the portion where no printing is performed, and the cleaning device 70 collects the chemical setting agent 11 and returns the transfer body 21 to the initial state. The cleaning device 70 includes a brush 71, a blade 72, and the like. The rotating brush 71 scrapes off the chemical setting agent 11, and the blade 72 also scrapes it off. When performing continuous printing, the cleaning unit 70 may be separated from the transfer member 51 by the separation mechanism, and the transfer layer 21 may be overcoated by the recording layer coating unit 10.

Further, since the printing area can be determined by the printing signal, the recording layer applying means 10 and the transfer body 21 are separated from each other by a cam at a timing in consideration of the distance between the recording layer applying means 10 and the printing means 30, and the chemical setting agent 11 is used. May be stopped from being applied to the transfer body 21.

FIG. 3 shows another embodiment of the present invention, in which a second paper feeding means 90 is provided immediately before the printing means 30, and the paper fed from the second paper feeding means is directly provided. Printing is performed, and the chemical setting agent 11 is
Is printed without coating. Transfer paper 42
Is on the transfer body 21, and the transfer paper 42 is conveyed even when the pressing roller 91 is released. In this case, it is advisable to arrange a detector for the transfer paper 42 and to take timing for printing and paper transport. If a separation device for the pressing roller 91 is provided to switch between the transfer mode and the paper direct mode, the pressing roller 91 separates in the transfer mode, and the chemical setting agent 11 does not adhere to the pressing roller 91. FIG. 4 shows another embodiment of the second paper feeding means, in which a claw switching device (not shown) for switching the switching claw 94 includes a transfer means 50.
By switching the switching claw, the paper fed from the paper feeding means 40 and discharged from the transfer roller 51 is conveyed to the printing means 30 along the transfer body 21, Paper feeder 40
It is what we have.

FIG. 5 shows another embodiment of the present invention, in which a third paper supply means 96 is provided adjacent to the transfer roller 51 of the transfer means 50 and is supplied from the third paper supply means 96. The recording layer coating unit 10 is operated by separating and transporting the paper, and the chemical setting agent 11 is coated on the transfer paper 42.
And print it. As described above, the paper 42 is on the transfer body 21 and the pressing roller 91
, The paper 42 is conveyed. It is preferable that a detector for the paper 42 is arranged at a predetermined location so that the timing of printing and paper conveyance is set. Further, since the chemical setting agent 11 is applied to the transfer paper 42, the chemical setting agent 11 adheres to the pressing roller 91, and the image or the text may be stained. Therefore, it is preferable that the pressing roller 91 be configured to make a pinpoint contact with a spur or the like. In order to prevent the chemical setting agent 11 from adhering to the pressing roller 91 due to the electrostatic charge, the member of the roller may be made of a conductor of a metal or a carbon mixture. Further, it is preferable to switch between the transfer mode and the paper direct print application mode by providing a separating device for the pressing roller 91. As shown in FIG. 4, a switching claw 94 is provided, and at this switching timing, the paper fed from the paper feeding unit 40 and discharged from the transfer roller 51 is conveyed along the transfer body 21. The function of the third sheet feeding unit may be shared by the sheet feeding device 40 by sending the sheet to the printing unit 30 via the recording layer applying unit 10.

FIG. 6 shows still another embodiment of the present invention, in which the paper reversing means including a switching claw device 97 and a reversing device 98 is provided after the paper feeding means 40 and before reaching the paper discharging means 60. By arranging a sheet re-feeding unit including a paper feed switching device 99 to the registration roller 46, double-sided printing transfer can be performed while continuous printing is performed. FIG. 7 (A)
FIG. 7B is a detailed view of the switching claw device 97 and the reversing device 98, and FIG.
FIG. The paper fed from the paper feeding means 40 passes through the transfer means 50 and an image or text is transferred to one side, and then passes through the switching claw device 97 to the reversing device 98.
And the paper is inverted. Further, it is sent to the paper feed switching device 99. Therefore, by switching the paper feed switching device 99, the paper on which the image has been transferred to one surface is re-fed and sent to the registration rollers 46, where the transfer means 50
And the image or text is transferred to the other side.

As described above, double-sided recording can be easily performed by providing a double-sided recording mode and switching the mode. In this case, a collecting device for collecting the unused chemical setting agent 11 may be disposed immediately before the paper is discharged, and the excess chemical setting agent 11 may be removed.

[0032]

According to the first aspect of the present invention, there is provided a recording apparatus for forming a visible image by depositing a droplet on a transfer member in accordance with an image signal and transferring the visible image onto a recording medium. A recording layer applying means for applying a chemical setting agent thereon,
A printing unit that ejects droplets onto the transfer body coated with the chemical setting agent according to an image signal, a paper feeding unit that sends out a transfer paper, and a transfer unit that transfers an image on the transfer body to the transfer paper And a discharge means for discharging and stocking the transferred transfer paper, and a cleaning means for removing an unused chemical setting agent on the transfer body, which greatly changes the configuration from the conventional printing apparatus. In addition, a transfer type image recording apparatus capable of obtaining a stable image using a chemical setting agent can be realized.

According to a second aspect of the present invention, in the image recording apparatus of the first aspect, a second paper feeding means is provided immediately before the printing means, and the paper fed from the second paper feeding means is directly provided. By printing, a normal printing device can be realized.

According to a third aspect of the present invention, in the image recording apparatus according to the first aspect, a third paper feeding means is provided immediately before the recording layer applying means, and the paper fed from the third paper feeding means is provided. After the chemical setting agent is applied by the recording layer applying means, printing is performed by the printing means, so that the same effect as the transfer can be obtained with plain paper printing without strikethrough, bleeding, and the like. You can switch.

According to a fourth aspect of the present invention, in the image recording apparatus according to the first aspect, a paper reversing means for reversing the paper at a stage subsequent to the transfer means, and the paper reversed by the reversing means is again transferred to the transfer means. In the transfer recording apparatus using a chemical setting agent,
Double-sided recording is now possible.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing another embodiment of the printing means in one embodiment of the present invention.

FIG. 3 is a diagram showing another embodiment of the present invention.

FIG. 4 is a view showing another embodiment of the second sheet feeding means in another embodiment of the present invention.

FIG. 5 is a diagram showing another embodiment of the present invention.

FIG. 6 is a diagram showing still another embodiment of the present invention.

FIG. 7 is a detailed view of a switching claw device, a reversing device, and a paper feed switching device.

[Explanation of symbols]

10: recording layer coating means, 11: chemical setting agent, 12
… Drive motor, 13… supply roller, 14… blade, 1
5 ... coating roller, 16 ... blade, 20 ... transfer body means,
21: transfer body, 21a: base, 21b: adhesive layer, 21c
... receiving layer, 22, 23, 24 ... roller, 30 ... printing means,
DESCRIPTION OF SYMBOLS 31 ... Print head, 32 ... Auxiliary part, 33 ... Line head, 34 ... Travel mechanism, 35 ... Drive part, 40 ... First paper feeder, 41 ... Paper feed cassette, 42 ... Transfer paper, 43 ... Paper separation part , 46 ... registration roller, 50 ... transfer means, 51 ...
Transfer roller, 60: paper discharge means, 70: cleaning means, 71: brush, 72: blade, 80: maintenance / retraction section, 90: second paper supply means, 91: pressing roller, 94 ...
Switching claw, 96: third paper feeding means, 97: switching claw device, 98: reversing device, 99: paper feed switching device.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuo Hasebe 1-3-6 Nakamagome, Ota-ku, Tokyo Stock inside Ricoh Company (72) Inventor Satoru Tomita 1-3-6 Nakamagome, Ota-ku, Tokyo Stock In Ricoh Company (72) Inventor Nobuyuki Yanagawa 1-3-6 Nakamagome, Ota-ku, Tokyo F-Term in Ricoh Company (Reference) 2C056 EA05 EA20 FD13 2C058 AB17 AC07 AC17 AE02 AE09 AF04 AF17 AF20 AF25 AF55 2H086 AA49

Claims (4)

[Claims] 1. A recording apparatus for forming a visible image by depositing droplets on a transfer member in accordance with an image signal and transferring the visible image onto a recording medium, wherein a chemical setting agent is applied on the transfer member. Recording layer applying means, printing means for ejecting droplets onto the transfer body coated with the chemical setting agent in accordance with an image signal, paper feeding means for sending out transfer paper, and printing the image on the transfer body An image recording apparatus comprising: transfer means for transferring to a transfer paper; paper discharge means for discharging and stocking the transferred transfer paper; and cleaning means for removing an unused chemical setting agent on the transfer body. 2. The apparatus according to claim 1, wherein a second paper feeding means is provided immediately before said printing means, and printing is performed directly on paper sent from said second paper feeding means. Image recording device. 3. A third paper feeding means is provided immediately before the recording layer coating means, and after a chemical set agent is applied to the paper sent from the third paper feeding means by the recording layer coating means,
2. The image recording apparatus according to claim 1, wherein the image is printed by the printing unit. 4. A paper reversing means for reversing a transfer sheet transferred by the transfer means, and a paper re-feeding means for supplying the paper reversed by the reversing means to the transfer means again. The image recording apparatus according to claim 1, wherein: