JP2001096877A - Apparatus and method for printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To print all page data without taking out a sheet after printing is finished from a delivery sheet tray on the way of printing in the case of printing a plurality of pages including different sheet size data. SOLUTION: The apparatus for printing comprises a large capacity memory having a storage capacity for storing page data of a plurality of pages including sheet size data and image data, a plurality of delivery sheet tray for delivering the sheet after the printing is finished in response to its sheet size, and a delivery sheet tray switching means for switching the trays responsive to the sheet size of the sheet of its delivery sheet destination after the printing is finished. In this case, page data of a plurality of pages store din the memory are transmitted to an engraving part by the data of each one page, engraved and printed. The sheet after the printing is finished is delivered on the tray responsive to the sheet size, and printing of all the page data is continuously conducted without taking out the sheet after the printing is finished from the delivery tray on the way of printing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a printing apparatus and a printing method.

[0002]

2. Description of the Related Art In general, a conventional printing apparatus is provided with a plurality of paper feed trays and one discharge tray. A movable fence is provided on the paper discharge tray so as to be movable in accordance with the size of paper discharged after printing.

In such a printing apparatus, upon receiving page data including paper size data and image data, a master corresponding to the image data is made, the master made is wound around a plate cylinder, and the master is printed on the paper size data. The corresponding paper is fed from one of the paper feed trays and printing is performed. Prior to the start of printing, the movable fence of the paper discharge tray is manually or automatically moved to a position corresponding to the size of paper used for printing so that the discharged paper is aligned.

When printing a plurality of page data,
If the paper size data in each page data is the same, the paper printed based on each page data can be continuously discharged onto the paper discharge tray.

However, if the paper size data of each page data is different, the paper discharged from the paper output tray is removed every time the printing of each page data is completed, and the paper size used for printing the next page data is reduced. The movable fence has been moved to the corresponding position.

[0006]

Therefore, when printing a plurality of page data including different paper size data, each time the printing of each page data is completed, the printing discharged on the paper discharge tray is performed. The operator must remove the paper after completion, which is complicated.

According to the present invention, when printing a plurality of page data including different paper size data, it is possible to print all the page data without taking out the paper from the discharge tray during the printing. An object of the present invention is to provide a printing apparatus and a printing method that can perform the printing.

Further, the present invention provides a printing apparatus and a printing method which can reduce the amount of uselessly consumed masters when printing a plurality of page data including different paper size data. Aim.

[0009]

According to a first aspect of the present invention, there is provided a printing apparatus for receiving a page data including sheet size data and image data and making a master having a size corresponding to the sheet size data. And a plurality of paper feed trays on which sheets of different sizes are placed. When printing is performed using the master, paper of a size corresponding to the paper size data in the page data is supplied from the paper feed tray. In a printing apparatus adapted to print on paper, a large-capacity storage unit having a storage capacity for storing page data for a plurality of pages transmitted to the plate making unit, and page data for a plurality of pages stored in the large-capacity storage unit A page data transmitting unit for transmitting one page at a time to the plate making unit, a plurality of discharge trays for discharging the paper after printing according to the paper size, Having a paper discharge tray switching means for switching the discharge destination to the discharge tray in accordance with the sheet size of the sheet, a.

Therefore, the page data for a plurality of pages stored in the large-capacity storage unit is transmitted to the plate making unit one page at a time, and is a master having a size corresponding to the paper size data in the page data. A master corresponding to the image data in the master is made, and printing is performed using the master. During this printing, paper of a size corresponding to the paper size data in the page data is fed,
The paper after printing is discharged onto a discharge tray whose discharge destination is switched according to the paper size of the paper. For this reason, even when printing page data for a plurality of pages including different paper size data, the paper after printing is discharged onto a different paper output tray according to the paper size. Printing of all page data can be continuously performed without taking out the printed paper from the paper tray.

According to a second aspect of the present invention, in the printing apparatus according to the first aspect, there is provided a sheet size checking means for checking the sheet size data in the page data of a plurality of pages stored in the large-capacity storage unit. If the checked paper size data has a different size, the page data is sorted so that the order of transmission of the page data to the plate making unit is in the order of the small size of the paper size data. Means.

Therefore, the page data of a plurality of pages stored in the large-capacity storage unit is sorted in ascending order of the paper size data, and transmitted to the plate making unit in the sorted order to perform plate making and printing. For this reason, the page data having the same sheet size data is continuously made and printed, and the sheets of the same size discharged at that time are continuously discharged onto the same discharge tray. In addition, the frequency of switching the discharge destination of the discharge tray is reduced.

When printing the page data of the last page, a master of the maximum size is made, and the master is kept wound around the plate cylinder even after the printing is completed, so that the plate cylinder is not dried until the next printing. There is a need to. At this time, the paper size data of the page data of the last page is
Since it is the largest among the page data of a plurality of pages stored in the large-capacity storage unit, even if a master having the maximum size is made as a master based on the page data, no image is formed on the master and it is useless. The number of parts is minimized, and the amount of wasteful master is reduced.

According to a third aspect of the present invention, in the printing apparatus according to the first or second aspect, the paper discharge trays are arranged in multiple stages in a vertical direction, and the paper discharge tray is provided with a paper discharge port for discharging paper after printing. An elevating mechanism that raises and lowers all of the paper discharge trays so that one of the paper discharge trays faces the other is provided as the paper discharge tray switching means.

Therefore, when the paper is discharged after the printing is completed, the paper discharge tray corresponding to the paper size of the paper to be discharged is moved up and down to a position facing the paper discharge port. Sheets are ejected. If the paper size data in the page data for plate making and printing is different from the paper size data in the page data of the previous page, the size of the paper to be fed is changed and the entire output tray is raised and lowered. The paper discharge tray facing the paper discharge port is switched.

The invention described in claim 4 is the first to third aspects of the present invention.
In the printing device according to any one of the above, a final page check unit that checks whether the page data transmitted to the plate making unit is a last page, and the page data transmitted to the plate making unit And a master size changing means for receiving the page data and changing the master to be used for plate making to the maximum size.

Therefore, when making and printing the page data of the last page, a master having the maximum size is made. By keeping the master wrapped around the plate cylinder after printing is completed, the master is maintained until the next printing. Further, the disadvantage that the plate cylinder dries is prevented.

The invention described in claim 5 provides the invention according to claims 1 to 4
The printing device according to any one of the above, further comprising a display unit that displays the paper discharge tray from which the paper after printing is discharged.

Therefore, when taking out the paper ejected onto the paper ejection tray after printing of all the page data is completed, the paper can be taken out from which paper ejection tray by looking at the display on the display means. Can be easily known.

According to a sixth aspect of the present invention, there is provided a printing apparatus comprising: receiving page data including paper size data and image data; making a master having a size corresponding to the paper size data by a plate making unit; In a printing method in which paper of a size corresponding to the paper size data in the page data is fed from any one paper feed tray on which papers of different sizes are placed,
A plurality of pages of page data are stored in a large-capacity storage unit having a storage capacity for storing page data of a plurality of pages, and the master plate making and mastering are performed for each page of the page data stored in the large-capacity storage unit. Printing using the master is performed, and the paper after printing is discharged to a different discharge tray according to the paper size.

Therefore, the page data for a plurality of pages stored in the large-capacity storage unit is transmitted to the plate making unit one page at a time, and a master corresponding to the page data is made.
Printing using the master is performed. At the time of this printing,
Paper of a size corresponding to the paper size data in the page data is fed, and the paper after printing is discharged onto a discharge tray whose discharge destination is switched according to the paper size of the paper. . For this reason, even when printing page data for a plurality of pages including different paper size data,
Since the paper after printing is discharged to a different paper output tray according to the paper size, printing is continuously performed for all page data without removing the paper after printing from the paper output tray during printing. Can be done.

According to a seventh aspect of the present invention, in the printing method according to the sixth aspect, the paper size data in the page data for a plurality of pages stored in the large-capacity storage unit is checked, and the checked paper size is checked. When there is a different size data in the size data, the page data is sorted so that the order of the master making and printing of the master for each page data is in ascending order of the paper size data.

Therefore, the page data for a plurality of pages stored in the large-capacity storage unit is sorted in ascending order of the paper size data, and transmitted to the plate making unit in the sorted order to perform plate making and printing. For this reason, the page data having the same sheet size data is continuously made and printed, and the sheets of the same size discharged at that time are continuously discharged onto the same discharge tray. In addition, the frequency of switching the discharge destination of the discharge tray is reduced.

In printing the page data of the last page, a master of the maximum size is made, and the master is kept wound around the plate cylinder even after the printing is completed, so that the plate cylinder does not dry until the next printing. There is a need to. At this time, the paper size data of the page data of the last page is
Since it is the largest among the page data of a plurality of pages stored in the large-capacity storage unit, even if a master having the maximum size is made as a master based on the page data, no image is formed on the master and it is useless. The number of parts is minimized, and the amount of wasteful master is reduced.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a print processing system. According to this print processing system, a personal computer (hereinafter abbreviated as PC) 1 and a printing machine 2 are connected via a controller 3.

In the PC 1, page data including paper size data (size data of paper used for printing) and image data (data of image contents to be made and printed) are created. This page data is transmitted to the printing press 2 via the controller 3.

FIG. 2 is a block diagram showing the internal configuration of the controller 3. The controller 3 includes a CPU 4 for controlling each unit according to the control program, a ROM 5 for storing the control program, a RAM 6 for storing various data, a font ROM 7, a decoder 8, a timer 9, an I / O 10 for connection to the PC 1, a printing operation. I / for connecting to machine 2
O11, an HD that is a large-capacity storage unit having a storage capacity for storing page data for a plurality of pages received from the PC1
D12 and the like.

FIG. 3 is a vertical sectional front view showing the structure of the printing press 2. The printing press 2 includes a printing press main body 13 and a discharge tray unit 14 provided in parallel with the printing press main body 13.

Inside the printing press body 13, a porous cylindrical plate cylinder 15, which is rotatably driven about an axis, is provided.
Press roller 1 movable to a position where it comes into contact with and separates from the outer peripheral surface of
6, a plate making section 18 for making a master 17 wound around the outer peripheral surface of the plate cylinder 15, a plate discharge section 19 for storing the used master 17 by peeling it off from the plate cylinder 15, and a sheet S for which printing has been completed to a sheet discharge port 20. Transfer unit 2 that performs suction transfer toward
1. A control unit 22 (see FIG. 4) for controlling the plate cylinder 15, the plate making unit 18, and a movable unit in the discharge tray unit 14, which will be described later.
Etc. are provided.

The paper feed trays 23a and 23 on which sheets S of different sizes are stacked are provided on the side and the lower part of the printer body 13.
b, 23c are attached.

A scanner device 24 for reading an image of a document to be printed is provided on an upper portion of the printer body 13.
An operation panel 25 including various operation keys and an LCD 25a (see FIG. 4) serving as display means is provided.

In the discharge tray unit 14, a plurality of discharge trays 26a, 26b, 26
c, 26d, 26e, and the paper discharge trays 26a-2
6 e, and a lifting mechanism, which is a discharge tray switching unit that raises and lowers the discharge tray 27 so that any one of the discharge trays 26a to 26e moves up and down to a position facing the discharge port 20. 28, and a pair of side fences slidable in a horizontal direction orthogonal to the paper discharge direction of the paper S discharged from the paper discharge port 20 on the paper discharge trays 26a to 26e that have been moved up and down to positions facing the paper discharge port 20. 29 and the side fence 29 to a position corresponding to the paper size of the paper S to be discharged.
And a side fence slide mechanism 30 that slides the slide.

The elevating mechanism 28 is provided with the sheet discharge tray unit 14
An elevating drive motor 31 disposed at a lower portion of the inside, a pair of lower pulleys 32 rotationally driven by the elevating drive motor 31,
A pair of upper pulleys 3 arranged above the lower pulley 32
3, a pair of timing belts 34 and the like stretched between the lower pulley 32 and the upper pulley 33; The discharge tray 27 is fixed to the timing belt 34.

The side fence slide mechanism 30 includes a guide rail 35 extending in a horizontal direction orthogonal to the paper discharge direction of the paper S discharged from the paper discharge port 20 and a guide rail 3.
5 comprises a pair of sliders 36 slidably attached along the direction of extension thereof, and a horizontal arm 37 having one end fixed to the slider 36, and a side fence 29 fixed to the other end of the horizontal arm 37. I have.

FIG. 4 is a block diagram showing a control configuration of the printing press 2. The control unit 22 is a microcomputer including a CPU, a ROM, and a RAM. The control unit 22 includes a controller 3, an operation panel 25, and a plate making unit 1.
8, plate discharging section 19, transport motor 38 for driving suction transport unit 21, scanner 24, paper feed motor 3
9. A plate cylinder driving motor 40 for rotatingly driving the plate cylinder 15, a press roller moving motor 41 for moving the press roller 16 to a position where the press roller 16 comes into contact with and separating from the plate cylinder 15, and sheet discharge trays 26a to 26.
lifting drive motor 31 for raising and lowering e, side fence 2
The side fence drive motor 42 for sliding the slide 9 is connected.

FIG. 5 is a flowchart for explaining the processing contents of the controller 3. The processing starts when the power of the controller 3 is turned on. First, each device in the controller 3 is reset (step S
1), information of the printing press 2, for example, the paper feed trays 23 a to 23
The size of the sheet S on the sheet 3c, the empty state of the paper discharge trays 26a to 26e, the amount of ink, the error state, and the like are acquired (step S2).

Thereafter, the process waits for transmission of page data from the PC 1 (step S3). When the page data is transmitted, all the page data is stored in the HDD 12 (step S4) and stored in the HDD 12. The page number "N" of the page data is checked (step S5). Further, the paper size data in the page data stored in the HDD 12 is checked (Step S).
6) Here, the paper size checking means is executed, and it is determined whether or not the paper size data in all the page data is the same (step S7).

If it is determined that the paper size data in all the page data is the same (Y in step S7), the image data is developed in the page order of the page data (step S8), and the developed image data Is transmitted to the printing press 2 one page at a time (step S9), and the page data transmission unit is executed here.
After it is confirmed that the transmission of the page data of all pages has been completed (Y in step S10), a series of processing operations ends.
As will be described later, each time one page of page data is transmitted to the printing press 2, plate making and printing are performed based on the page data.

On the other hand, if it is determined that the paper size data in all the page data is not the same (N in step S7), the page data of each page is sorted in ascending order of the paper size data (when the paper size data is the same). The page data is sorted in the order of pages (step S11), where
Sorting means is executed. The image data is developed in the order of the sorted page data (step S12), and the developed image data is transmitted to the printing press 2 (step S12).
9) After confirming that transmission of all pages has been completed (Y in step S10), a series of processing operations ends.

FIG. 6 is a flowchart for explaining the processing contents in the printing press 2. When the power of the printing press 2 is turned on, the process starts. First, each device in the printing press 2 is reset (step S21), and information on the printing press 2, for example, information on the paper feed trays 23a to 23c. The size of the paper S, the availability of the paper discharge trays 26a to 26e, the amount of ink, the error status, and the like are acquired (step S2).
2).

Thereafter, basic job data such as the number of pages “N”, the number of pages printed, the paper size data of each page, etc., relating to the page data of a plurality of pages stored in the HDD 12 of the controller 3 are transmitted from the controller 3. In preparation for this (step S23), when the basic job data has been transmitted, a discharge tray selection process is performed (step S24). In this paper discharge tray selection process, it is determined which paper discharge tray 26a to 26e is to be discharged to which page data is printed. In the discharge tray selection process, if the discharge trays 26a to 26e required for discharging all pages cannot be secured, the printing is not started, and the process waits for the cancellation process to be performed. I do.

After the discharge tray selection process is completed, the controller 3 waits for the transmission of one page of page data from the controller 3 (step S25). The number of the page is counted (step S26), and it is determined whether or not the page data is the page data of the last page "N" (step S27). Here, the last page checking means is executed. . If it is not the page data of the last page (N in step S27), the master 17 corresponding to the page data (sheet size data and image data) is made (step S28).

After the master 17 is made, the master 1
7 or not, it is necessary to switch the paper discharge trays 26a to 26e serving as paper discharge destinations of the paper S to be printed using the sheet No. 7 (that is, the paper size data of the page data of the previous page and the paper size of the page data of this page). It is determined whether or not the data is the same (step S29), and if switching is necessary (Y in step S29), the paper discharge trays 26a to 26e are switched (step S30), and printing / paper discharging is performed. This is performed (step S31). In addition, the paper discharge trays 26a to 26
The switching of e is performed by driving the lifting drive motor 31 to raise and lower the paper discharge table 27 and to set the paper discharge tray 2 facing the paper discharge port 20.
6a to 26e are changed, and the side fence 29 is slid to a required position by driving the side fence drive motor 42. Output tray 26
If switching between a to 26e is not necessary (N in step S29), printing / discharge is performed without switching to the discharge trays 26a to 26e (step S31).

After the start of printing / discharge, it is determined whether or not a predetermined number of prints has been reached (step S32). If the predetermined number of prints has been reached (Y in step S32),
It is again determined whether or not the printing is the page data of the last page “N” (step S33). If the printing is not the last page (N of step S33), the master 17 used for printing is discharged (step S34). ), And waits for the next page data of one page to be transmitted from the controller 3 (step S25).

If the page data transmitted from the controller 3 is the last page "N" (step S27)
Y), regardless of the paper size data in the page data, the master 17 of the maximum size usable in the printing press 2
Is made (step S35), and the master size changing means is executed here. Thereafter, a discharge tray 26a serving as a discharge destination of the paper S printed using the master 17 is used.
Is determined (step S29), switching of the paper discharge trays 26a to 26e (step S30), printing and paper discharging (step S31), and the like are performed.

When it is determined that the completed printing is the page data of the last page "N" (Y in step S33).
In step S36, the paper discharge trays 26a to 26e on which the paper S after printing is discharged in the series of printing are displayed on the display unit of the operation panel 25 (step S36), and the series of printing operations ends.

In such a configuration, according to the printing press 2 of the present embodiment, when page data of a plurality of pages including different paper size data is transmitted from the PC 1,
The paper S after printing corresponding to each page data can be discharged onto any of the paper discharge trays 26a to 26e for each paper size, and printing of page data of a plurality of pages including different paper size data can be performed. Can be performed continuously. For this reason, every time printing of page data of one page is completed, the operator removes the printed paper S from the discharge tray 2.
It is not necessary to take out from 6a-26e, and the work efficiency of the printing work is improved.

When printing a plurality of pages of page data including different paper size data, the page data is sorted in ascending order of paper size data (step S11), and plate making and printing are performed in that order. Plate making and printing are continuously performed on page data having the same sheet size data, and sheets of the same size discharged at that time are continuously discharged onto the same discharge trays 26a to 26e. The frequency of switching the paper discharge destinations of the paper discharge trays 26a to 26e is reduced, and the durability of the lifting mechanism 28 is improved.

When printing the page data of the last page, a master 17 of the maximum size usable in the printing press 2 is made (step S35). Therefore, after the printing is completed, the master 17 is wound around the plate cylinder 15. Is maintained so that the plate cylinder 15 does not dry until the next printing, and the next printing is started smoothly.

Further, when the master 17 having the maximum size is subjected to plate making, the sheet size data of the page data of the last page is the largest among the page data of a plurality of pages stored in the HDD 12, so that the page data is Even if the maximum size master 17 is made as a master based on
The portion of the master 17 that is not wasted without forming an image is minimized, and the amount of the master 17 that is wasted is reduced.

After the printing of all the page data is completed, the discharge tray 2 where the paper S has been discharged in the current printing is
6a to 26e are displayed on the display unit. For this reason, the paper S discharged in the current printing is transferred to the discharge trays 26a to 26
When the paper S is taken out from the printer, the user can easily know which paper tray S to take out the paper S from by looking at the display on the display unit. Even if it is present on any of the paper discharge trays 26a to 26e, the paper S discharged by the current printing can be taken out without fail.

In this embodiment, the controller 3
Is described as an example separately from the printing press 2, but the controller 3 may be provided integrally with the printing press 2.

Further, in this embodiment, all the discharge trays 26a to 26e are raised and lowered simultaneously as discharge tray switching means so that any one of the discharge trays 26a to 26e faces the discharge port 20. Although the elevating mechanism 28 has been described as an example, the discharge tray switching means may have another structure. For example, a plurality of discharge trays may be provided at a fixed position, and the discharge destination of the sheet S after printing is completed. A paper discharge destination switching claw for switching to one of the paper discharge trays may be provided on the paper discharge path.

In this embodiment, the LCD 25a has been described as an example of the display means. However, the LED which is turned on according to each of the discharge trays 26a to 26e where the discharge has been performed.
May be provided as display means.

[0055]

According to the printing apparatus of the first aspect of the present invention, even when printing a plurality of pages of data including different paper size data, the paper after the printing is completed is output differently according to the paper size. Paper can be discharged onto a paper tray, and printing of all page data can be performed continuously without taking out the printed paper from the paper discharge tray during printing.

According to the printing apparatus of the second aspect,
The page data of a plurality of pages stored in the large-capacity storage unit are sorted in ascending order of the paper size data, and plate making and printing are performed in the sorted order. The same size of paper discharged at that time is continuously discharged onto the same discharge tray, so that the frequency of switching the discharge destination of the discharge tray can be reduced. it can. Further, since the paper size data of the page data of the last page is the largest among the page data of a plurality of pages stored in the large-capacity storage unit, in order to prevent the plate cylinder from drying until the next printing. Even if the maximum size master is made as a master based on the page data,
The part of the master that is wasted without forming an image is minimized, and the amount of the master that is wastefully consumed can be reduced.

According to the printing apparatus of the third aspect,
When discharging paper after printing is completed, the paper discharge tray corresponding to the paper size of the paper to be discharged moves up and down to a position facing the paper discharge port, and discharges the printed paper onto that paper discharge tray. can do.

According to the printing apparatus of the fourth aspect,
When making and printing the page data of the last page, the master of the maximum size is made, so by keeping the master wrapped around the plate cylinder after printing, the plate cylinder can be dried until the next printing. Can be prevented.

According to the printing apparatus of the fifth aspect,
When taking out the paper ejected on the paper ejection tray after printing of all the page data is completed, it is easy to know from which paper ejection tray the paper should be taken out by looking at the display on the display means. The paper discharged by the current printing can be taken out without fail.

According to the printing method of the invention described in claim 6,
Even when printing page data for a plurality of pages including different paper size data, the paper after printing can be discharged to a different paper output tray according to the paper size. Printing of all page data can be performed continuously without taking out the paper after printing from above.

According to the printing method of the invention described in claim 7,
The page data of a plurality of pages stored in the large-capacity storage unit are sorted in ascending order of the paper size data, and plate making and printing are performed in the sorted order. The same size of paper discharged at that time is continuously discharged onto the same discharge tray, so that the frequency of switching the discharge destination of the discharge tray can be reduced. it can. Further, since the paper size data of the page data of the last page is the largest among the page data of a plurality of pages stored in the large-capacity storage unit, in order to prevent the plate cylinder from drying until the next printing. Even if the maximum size master is made as a master based on the page data,
The part of the master that is wasted without forming an image is minimized, and the amount of the master that is wastefully consumed can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a print processing system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a controller.

FIG. 3 is a vertical sectional front view showing the structure of the printing press.

FIG. 4 is a block diagram illustrating a control configuration of the printing press.

FIG. 5 is a flowchart illustrating processing performed by a controller.

FIG. 6 is a flowchart illustrating processing performed by the printing press.

[Explanation of symbols]

 12 Large-capacity storage unit 17 Master 18 Plate-making unit 20 Discharge ports 23a to 23c Paper feed tray 25a Display means 26a to 26e Discharge tray 28 Discharge tray switching means, elevating mechanism S paper S6 paper size check means S9 page data transmission means S11 Sorting means S27 Last page checking means S35 Master size changing means

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B41F 33/02 B41F 33/02 Z B41J 21/00 B41J 21/00 Z 29/38 29/38 Z G06F 3 / 12 G06F 3/12 MF term (reference) 2C061 AP01 HH03 HJ04 HK07 HL01 HN02 HN15 HN18 2C087 AB05 BC05 BC14 CA03 CA05 CA13 CB17 DA16 DA17 2C250 EA02 EA12 EA18 EA36 2H084 AA38 AE04 CC09 5KK

Claims (7)

[Claims] 1. A plate making section for receiving page data including sheet size data and image data and making a master having a size corresponding to the sheet size data, and a plurality of sheet feeders on which sheets of different sizes are placed. A printing apparatus having a tray, and when printing using the master, a sheet having a size corresponding to the sheet size data in the page data is fed from the sheet feeding tray. A large-capacity storage unit having a storage capacity for storing page data for a plurality of pages, and a page data transmission unit for transmitting the page data for a plurality of pages stored in the large-capacity storage unit to the plate making unit one page at a time A plurality of paper output trays on which the paper after printing is discharged according to the paper size; and a paper discharge destination for the paper after printing is set according to the paper size of the paper. Printing apparatus comprising: the sheet discharge tray switching means for switching the paper tray, the. 2. A sheet size checking means for checking the sheet size data in the page data of a plurality of pages stored in the large capacity storage unit, wherein the checked sheet size data has a different size. 2. The printing apparatus according to claim 1, further comprising: a sorting unit that sorts the page data so that the order of transmission of the page data to the plate-making unit is in ascending order of the sheet size data. Printing device. 3. The paper discharge tray is arranged in multiple stages in the vertical direction, and all of the paper discharge trays are arranged such that any one of the paper discharge trays faces a paper discharge port from which paper after printing is discharged. 3. An apparatus according to claim 1, wherein an elevating mechanism for elevating and lowering a tray is provided as said discharge tray switching means.
The printing device according to the above. 4. A last page checking means for checking whether or not the page data transmitted to the plate making section is of a last page, and wherein the page data transmitted to the plate making section is of a last page. 2. The apparatus according to claim 1, further comprising: a master size changing unit configured to receive the page data and change the master for plate making to a maximum size.
4. The printing device according to any one of items 3 to 3. 5. The printing apparatus according to claim 1, further comprising display means for displaying the paper discharge tray on which the paper after printing is discharged. 6. Receiving page data including sheet size data and image data, making a master having a size corresponding to the sheet size data in a plate making section, and performing printing using the master in the page data. In a printing method in which paper of a size corresponding to the paper size data is fed from one of the paper feed trays on which papers of different sizes are placed, a storage capacity for storing page data for a plurality of pages Storing the page data for a plurality of pages in the large-capacity storage unit having, and performing the master making of the master and printing using the master for each page of the page data stored in the large-capacity storage unit, and printing A printing method, wherein the completed paper is discharged to a different paper discharge tray according to the paper size. 7. Checking the paper size data in the page data for a plurality of pages stored in the large capacity storage unit, and if there is a different size in the checked paper size data, 7. The printing method according to claim 6, wherein the page data is sorted such that the order of plate making and printing of the master for each page data is in ascending order of the paper size data.