JP2020104269A - Printer - Google Patents

Abstract

To provide a printer that obtains printing matter in the correct order of pages by reducing waste sheets when a printing medium jam occurs.SOLUTION: A printer comprises: a printing processing part 30 that applies printing processing to a printing medium on the basis of printing information; a cyclic conveyance path CR for conveying the printing medium; paper detection sensors 70-77 for detecting a printing medium jam; and a control part 60 that performs such jam processing that the printing medium causing the jam is removed and that the printed medium following the printing medium causing the jam is left on the conveyance path, when all original copy data included in the printing information can be printed on the one printing medium.SELECTED DRAWING: Figure 1

Description

The present invention relates to a printing apparatus that detects a jam of a print medium on a conveyance path and performs a jam process for returning to the print process.

2. Description of the Related Art Conventionally, a printing apparatus has been proposed which performs a printing process while transporting a print medium along a transport path.

In such a printing apparatus, when a jam of the printing medium occurs due to some cause during the transportation of the printing medium, the jam is detected and a jam process that prompts the user to remove the printing medium remaining in the printing apparatus is performed. Has been proposed (see, for example, Patent Document 1).

JP, 2014-195928, A

Here, in the printing apparatus as described above, there is a case where the already printed printing medium remains in the printing apparatus when the jam occurs. In such a case, for example, when a plurality of copies of one page of original data is printed by single-sided printing, if all print media in the printing device are removed as jam processing, even normally printed print media are removed. As a result, the amount of waste paper increases.

Therefore, it is conceivable to remove only the print medium causing the jam as the jam processing, and leave the already printed print medium in the printing apparatus.

However, for example, in the case of printing multiple pages of original data by simplex printing, if only the print medium causing the jam is removed and the already printed print medium is left in the printing apparatus as described above, the print When the used print medium is ejected, the page of the print medium that causes the jam becomes a missing printed matter, and the printed matter has a different page order.

For example, when the original data of 10 pages is printed on one side, a jam occurs on the print medium of the 5th page, and if only this print medium is removed, printing of already ejected pages 1 to 4 is performed. The print medium on which the sixth page is printed is ejected on the medium, and the fifth page is skipped, resulting in a printed matter with a different page order.

In view of the above circumstances, it is an object of the present invention to provide a printing apparatus that can reduce wasted paper when a print medium is jammed and that can obtain printed matter in the correct page order. is there.

The printing apparatus of the present invention includes a print processing unit that performs print processing on a print medium based on print information, a transport path that transports the print medium, and a jam detection unit that detects a jam during transport of the print medium. If all the original data included in the print information can be printed on one print medium, the print medium that is present on the conveyance path at the time of the jam detection and that is at least the cause of the jam A control unit that removes the medium and performs a jam process that leaves the printed medium that has been printed after the printing medium that has caused the jam on the transport path.

According to the printing apparatus of the present invention, when all the original data included in the print information can be printed on one print medium, the print medium exists on the conveyance path at the time of detecting a jam, At least the print medium that caused the jam is removed, and the jam process is performed so that the print medium that has been printed after the print medium that caused the jam is left on the transport path. In addition to being able to reduce the number, it is possible to obtain a printed matter in the correct page order.

The figure which shows the schematic structure of the inkjet printing apparatus using one Embodiment of the printing apparatus of this invention. The figure which shows an example of the jam display in the case of the 1st jam processing. Block diagram showing a schematic configuration of a control system of the inkjet printing apparatus shown in FIG. Flowchart for explaining a method of determining the first jam processing and the second jam processing

Hereinafter, an inkjet printing apparatus using an embodiment of the printing apparatus of the present invention will be described in detail with reference to the drawings. The inkjet printing apparatus according to the present embodiment is characterized by the jam processing method when a jam occurs in the conveyance path of the printing paper. First, the overall configuration will be described. FIG. 1 is a diagram showing a schematic configuration of an inkjet printing apparatus of this embodiment. The vertical and horizontal directions shown in FIG. 1 are the vertical and horizontal directions of the inkjet printing apparatus of this embodiment.

As shown in FIG. 1, the inkjet printing apparatus 1 of the present embodiment includes a side paper feed unit 10, an internal paper feed unit 20, a print processing unit 30, a paper discharge unit 40, a reversing unit 50, and a control unit. 60 and a display unit 80.

The print processing unit 30, the internal paper feeding unit 20, and the control unit 60 are housed and installed in a housing 100 formed of metal or resin. In addition, the side paper feed unit 10, the paper discharge unit 40, and the reversing unit 50 are installed in a state where a part of the side paper feed unit 10, the paper discharge unit 40, and the reversing unit 50 are housed inside the housing 100 and protrude outside the housing 100.

The side paper feed section 10 is a paper feed tray 11 on which the print paper P is placed, and a primary paper feed tray that feeds out only the uppermost print paper P from the paper feed tray 11 and conveys it onto the paper feed conveyance path FR. 12 and a secondary paper feed unit 14 for carrying the print paper P carried by the primary paper feed unit 12 onto the circulation carrier path CR.

The internal paper feed unit 20 is a paper feed table 21a on which the print paper P is placed, and a primary paper feed section that feeds out only the uppermost print paper P from the paper feed table 21a and conveys it onto the paper feed conveyance path FR. 22a, a paper feed table 21b on which the print paper P is placed, a primary paper feed section 22b for feeding only the uppermost print paper P from the paper feed tray 21b and carrying it to the paper feed path FR, The paper feed table 21c on which the paper P is placed, the primary paper feed section 22c for feeding only the uppermost print paper P from the paper feed tray 21c and carrying it to the paper feed carrying path FR, and the print paper P are placed. It is provided with a paper feed tray 21d to be placed, and a primary paper feed section 22d for feeding out only the uppermost printing paper P from the paper feed tray 21d and carrying it onto the paper feed carrying path FR.

As described above, the printing paper P is conveyed to the secondary paper feeding unit 14 from the side paper feeding unit 10 or the internal paper feeding unit 20, and the printing paper P is further conveyed from the reversing unit 50 described later.

Therefore, in front of the secondary paper feed unit 14 in the transport direction, the transport path of the print paper P fed from the internal paper feed unit 20 and the print paper P on which one surface transported from the reversing unit 50 is printed. There is a confluence point where the transportation route of the vehicle merges. A path on the paper feed mechanism side is referred to as a paper feed conveyance path FR, and other paths are referred to as a circulation conveyance path CR with reference to this joining point. In the present embodiment, the circulation transfer route CR corresponds to the transfer route of the present invention.

The print processing unit 30 includes four head units 31 provided with a plurality of inkjet heads, and an annular transport belt 133 provided so as to face the head units 31. The printing paper P fed by the secondary paper feeding unit 14 is printed by the ink ejected from the four head units 31 while being conveyed by the conveyor belt 133 at a predetermined conveying speed.

The four head units 31 eject inks of different colors, and in the present embodiment, eject inks of black (K), cyan (C), magenta (M), and yellow (Y).

The printing paper P printed by the print processing unit 30 is conveyed on the circulation conveyance path CR by the conveyance rollers arranged on the circulation conveyance path CR. A switching mechanism 49 is provided on the circulation conveyance route CR to switch between guiding the printing paper P conveyed on the circulation conveyance route CR to the paper discharge unit 40 or recirculating on the circulation conveyance route CR. There is. Specifically, the switching mechanism 49 switches between the transport path on the sheet discharge section 40 side and the transport path on the reversing section 50 side.

The paper discharge unit 40 includes a tray-shaped paper discharge tray 45 protruding from the housing 100 of the inkjet printing apparatus 1 and a pair of paper discharge rollers 48 for discharging the print paper P to the paper discharge tray 45. Then, the print paper P guided by the switching mechanism 49 to the transport path on the paper discharge section 40 side is discharged to the paper discharge tray 45 by the paper discharge rollers 48.

The reversing unit 50 conveys the print sheet P from the circulation conveyance path CR to the reversal table 51 and the reversal table 51 for reversing the print sheet P, and also transfers the print sheet P conveyed to the reversal table 51 on the circulation conveyance path CR. And a reversing roller 52 for returning to.

The printing paper P guided by the switching mechanism 49 to the reversing unit 50 is conveyed by the reversing rollers 52 from the circulation conveyance path CR to the reversing table 51, and is returned from the reversing table 51 to the circulation conveyance path CR again so that the front and back are reversed. In this state, it is conveyed on the circulation conveyance route CR. Then, the front and back of the print sheet P is conveyed again to the print processing unit 30 by a plurality of rollers such as the conveyance roller 53 provided on the circulation conveyance path CR.

Further, a plurality of sheet detection sensors 70 to 77 for detecting a jam of the print sheet P conveyed on the circulation conveyance route CR are provided on the circulation conveyance route CR. The sheet detection sensors 70 to 77 are, for example, optical sensors and detect whether or not the print sheet P has passed near the sheet detection sensors 70 to 77. The signals detected by the paper detection sensors 70 to 77 are output to the control unit 60, and the control unit 60 detects the printing paper P on the circulation conveyance route CR based on the signals detected by the paper detection sensors 70 to 77. Identify the location of the jam.

Specifically, as shown in FIG. 1, the control unit 60 causes the paper detection sensor 73 to print the printing paper P1 when a jam of the printing paper P1 has occurred on the circulation conveyance route CR in front of the paper ejection unit 40. When the printing paper P is not detected by the paper detection sensor 74 even after a preset time elapses after P is detected, the position of the jam of the printing paper P1 is determined by the paper detection sensor 73 on the circulation conveyance route CR. And the sheet detection sensor 74.

In this way, the control unit 60 identifies the position where the jam of the printing paper P is generated based on the detection signal of the paper detection sensor 74 that is continuously arranged on the circulation conveyance route CR.

Further, when performing a printing process on a plurality of printing sheets P, the control unit 60 counts the detection signals of the sheet detection sensors 70 to 77 to determine which page of the printing sheet P is being conveyed. judge. That is, the control unit 60 determines to what position the printing paper P of which page has been conveyed, based on the detection signals of the paper detection sensors 70 to 77. In the present embodiment, the paper detection sensors 70 to 77 correspond to the jam detection unit of the present invention.

Further, when a jam of the printing paper P occurs, the control unit 60 of the present embodiment performs the jam process so that the printing process can be restored thereafter. Specifically, as the jam processing, the control unit 60 performs a jam display that prompts the user to take out the printing paper P or the like, which is the cause of the jam, from the inside of the housing 100.

Further, the control unit 60 of the present embodiment switches between the first jam processing and the second jam processing based on jam processing switching information output from the print job output device 2 described later.

Specifically, the control unit 90 (see FIG. 3) of the print job output apparatus 2 can print all the original data included in the print job generated by the print job output apparatus 2 on one print medium. Or not. Then, when all the document data included in the print job can be printed on one print sheet P, the control unit 90 sends a signal for instructing to perform the first jam process as the jam process switching information. It is output to the control unit 60 of the inkjet printing apparatus 1.

On the other hand, when it is impossible to print all the original data included in the print job on one print medium, the control unit 90 sends a signal for instructing to perform the second jam processing as the jam processing switching information. It is output to the control unit 60 of the inkjet printing apparatus 1.

The case where all the original data included in the print job can be printed on one sheet of printing paper P means, for example, when the original data included in the print job is one page and the one-sided printing is performed, one sheet is printed. The printing paper P can be printed. On the other hand, when the original data included in the print job is a plurality of pages and the one-sided printing is performed, the printing paper P corresponding to the pages of the original data is required, and therefore one printing paper P cannot be printed. is there. However, if the document data included in the print job is a plurality of pages, single-sided printing is performed, and if imposition printing is performed, the number of pages of the document data is within the imposition number. It is possible to print with P. When the number of pages of document data exceeds the number of impositions, printing cannot be performed on one sheet of printing paper P.

If the original data included in the print job is two pages and double-sided printing is performed, it is possible to print on one printing sheet P. On the other hand, when the document data included in the print job is three pages or more and the printing is double-sided printing, two printing sheets P are required, and therefore one printing sheet P cannot be printed. However, in the case of double-sided printing and imposition printing, if the number of pages of the document data is within the imposition number×2, it is possible to print with one printing paper P. When the number of pages of the document data exceeds the number of impositions×2, it is impossible to print on one printing sheet P.

As described above, the control unit 90 of the print job output apparatus 2 determines, based on the number of pages of the document data included in the print job, the printing condition of double-sided printing or single-sided printing, and the imposition condition of imposition printing, It is determined whether or not all the original data included in the print job can be printed on one sheet of printing paper P, and job processing switching information corresponding to the determination result is output. By making a determination based on these conditions, it is possible to appropriately and easily determine whether or not all original data can be printed on one printing paper P.

In the present embodiment, the control unit 90 of the print job output apparatus 2 performs the above determination, but the present invention is not limited to this, and the control unit 60 of the inkjet printing apparatus 1 may perform the above determination. .. In that case, from the control unit 90 of the print job output device 2 to the control unit 60 of the inkjet printing device 1, the number of pages of the original data included in the print job, the printing condition of double-sided printing or single-sided printing, and imposition printing The imposition condition of No. 1 is output, and the control unit 60 of the inkjet printing apparatus 1 may make the above determination based on these conditions. Alternatively, the control unit 60 of the inkjet printing apparatus 1 may perform the above determination by analyzing the content of the print job after receiving the print job.

Then, the control unit 60 of the inkjet printing apparatus 1 switches between the first jam processing and the second jam processing based on the input job processing switching information.

Specifically, the first jam process is a process performed when all the same document data is printed on a plurality of printing sheets P. The first jam process is a process of leaving the already printed printing paper P on the circulation conveyance route CR, which is the printing paper P existing on the circulation conveyance route CR when a jam is detected. If all the original data included in the print job can be printed on one print sheet P, that is, if the same original data is printed on a plurality of print sheets P, at least the cause of the jam Even if the already printed printing paper P is ejected as it is, the same original data is printed on all the printing papers P, so that the page order may be out of order. There is no problem.

Therefore, in the first jam processing, the printing paper P that has already been printed is left in the circulation transport path CR. Specifically, in the case of the first jam processing, the control unit 60 causes the display unit 80 to display the position of the printing paper P that is the cause of the jam, and displays the printing paper P to the user. Although it is urged to remove P, nothing is displayed on the other printed printing paper P on the circulation conveyance route CR, that is, the user does not take it out of the housing 100. By leaving the printed printing paper P in this way, it is possible to reduce waste paper.

For example, when the print paper P1 is jammed as shown in FIG. 1, the control unit 60 displays the position E of the print paper P1 on the display unit 80 and displays the jam as shown in FIG. Urging the user to remove the printing paper P1. Then, the printed printing paper P2 and the printing paper P3 are left in the circulation transport route CR, and therefore the control unit 60 does not display the jam on the display unit 80. Note that in the present embodiment, the jam display is performed only for the printing paper P1 that is the cause of the jam, but the printing may be displayed for the printing paper P4 that is being conveyed by the secondary paper feeding unit 14. Although not shown in FIG. 1, the print processing unit 30 may also perform a jam display on the print paper P that is being printed.

After the jammed print paper P1 is removed by the user, the control unit 60 adds the removed number of sheets to the end to perform printing. As a result, it is possible to obtain the printed matter for the number of prints set by the user.

On the other hand, the second jam process is specifically a process performed when original data of different pages are printed on a plurality of printing sheets P. The second jam processing is the printing paper P existing on the circulation conveyance route CR at the time of detecting the jam, and is succeeding at least the printing paper P that is the cause of the jam and the printing paper P that is the cause of the jam. This is a process for removing all the printing paper P that has been printed.

When all the original data included in the print job cannot be printed on one printing paper P, that is, when the original data of different pages are printed on a plurality of printing papers P, for example, a jam occurs. When only the printing paper P that is the cause is removed, the printing paper P that has been printed after the printing paper P that has already been ejected to the paper ejection unit 40 is printed after the printing paper P that is the cause of the jam. The paper will be ejected, and the page order will be different.

Specifically, for example, if the original data included in the print job is 10 pages, and one-sided printing is performed without imposition, if the printing paper P1 that causes the jam shown in FIG. If only P1 is removed, the printing paper P2 on which the sixth page is printed and the seventh paper are printed on the printing paper P on the first to fourth pages that have already been discharged to the paper discharge unit 40. The printing paper P3 is ejected, and the printed matter in which the fifth page is omitted and the page order is different is generated.

Therefore, in the second jam processing, not only the printing paper P1 that causes the jam, but also the succeeding printed printing paper P2 and printing paper P3 are removed. Specifically, for example, when the print sheet P1 is jammed as shown in FIG. 1, the control unit 60 controls not only the position of the print sheet P1 but also the printed print sheet subsequent to the print sheet P1. The positions of P2 and the printing paper P3 are also jam-displayed on the display unit 80 to prompt the user to remove the printing paper P1, the printing paper P2, and the printing paper P3. Note that the printing paper P4 being conveyed by the secondary paper feeding unit 14 may be jam-displayed. Although not shown in FIG. 1, the print processing unit 30 may also perform a jam display on the print paper P that is being printed.

Then, after the printing papers P1 to P3 have been removed by the user, the control unit 60 restarts printing again from the original data of the fifth page that was scheduled to be printed on the printing paper P1 due to the jam. As a result, the user can obtain the printed matter in which the page order is correct.

The display unit 80 is configured by a touch panel having a liquid crystal display, and displays the jam display described above and various setting input screens.

FIG. 3 is a block diagram showing a schematic configuration of a control system of the inkjet printing apparatus 1 of this embodiment.

The control unit 60 controls the entire inkjet printing apparatus 1, and includes a CPU (Central Processing Unit), a semiconductor memory, a hard disk, and the like. The control unit 60 controls the operation of each unit of the inkjet printing apparatus 1 by executing a program stored in advance in a storage medium such as a semiconductor memory or a hard disk and operating an electric circuit.

In particular, the control unit 60 of the present embodiment communicates with the control unit 90 of the print job output device 2 and receives the print job output from the control unit 90. Further, when receiving the print job, the control unit 60 receives the above-described job process switching information, and switches between the above-described first jam process and second jam process according to the job process switching information.

The print job output device 2 is composed of a computer. The print job output device 2 is installed with a document creation application for creating document data and a printer driver for creating a print job including the document data. In the printer driver, it is possible to set printing conditions for single-sided printing or double-sided printing and imposition conditions for imposition printing. The print job output device 2 generates a print job based on the document data created by the document creation application and the print conditions and imposition conditions set on the printer driver, and outputs the print job to the inkjet printing device 1.

Further, the print job output device 2 outputs the jam processing switching information to the inkjet printing device 1 as described above.

In the present embodiment, the print job output device 2 corresponds to the print information output device of the present invention, and the inkjet printing device 1 and the print job output device 2 constitute the printing system of the present invention.

Next, based on the number of pages of the original data included in the print job, the printing condition for double-sided printing or single-sided printing, and the imposition condition for imposition printing, the first jam process or the second jam process is performed. A method of determining which is to be performed will be described in more detail with reference to the flowchart shown in FIG. This determination is performed by the control unit 90 of the print job output apparatus 2 or the control unit 60 of the inkjet printing apparatus 1 as described above. Here, it is assumed that the control unit 90 of the print job output device 2 makes the determination.

The control unit 90 first confirms whether the document data included in the print job is a plurality of pages (S10). When the document data included in the print job is one page (S10, NO), the control unit 90 performs the first jam process when printing a plurality of copies of the document data of one page (S18).

On the other hand, when the document data included in the print job is a plurality of pages (S10, YES), the control unit 90 confirms whether single-sided printing or double-sided printing (S12). Then, in the case of single-sided printing (S12, single-sided printing), the control unit 90 confirms whether it is imposition printing (S14). Next, in the case of single-sided printing and imposition printing (S14, YES), the control unit 90 confirms whether the number of pages of document data is equal to or less than the imposition number (S16).

Then, when the number of pages of the document data is equal to or less than the imposition number (S16, YEs) and the printed matter to which the plurality of document data are imprinted is printed in a plurality of copies, the first jam processing is performed. Is performed (S18).

On the other hand, when the control unit 90 confirms that the printing is the one-sided printing but not the imposition printing in S14 (NO in S14), the control unit 90 performs the second jam processing (S26). Further, when the number of pages of the document data exceeds the imposition number in S16 (S16, NO), the control unit 90 also performs the second jam processing (S26).

If the document data included in the print job is a plurality of pages (YES in S10) and it is confirmed in S12 that the printing is double-sided printing (S12, double-sided printing), the control unit 90 determines the page of the original data. It is confirmed whether the number is 3 pages or more (S20). Then, when the number of pages of the original data is not three or more (S20, NO), that is, when the number of pages of the original data is two and a plurality of copies are printed, the control unit 90 performs the first jam processing. Is performed (S18).

On the other hand, when it is confirmed in S20 that the number of pages of document data is three or more (S20, YES), the control unit 90 confirms whether imposition printing is performed (S22). Then, when the number of pages of the document data is three or more and imposition printing is performed (S22, YES), the number of pages of the document data is less than or equal to the imposition number×2. It is confirmed whether or not (S24).

Then, when the number of pages of the document data is equal to or less than the imposition number×2 (S24, YES), the control unit 90 prints a plurality of copies of the document to which the plurality of document data are imprinted, the first number. The jam processing is performed (S18).

On the other hand, if the controller 90 confirms in S22 that the number of pages of the document data is three or more, but it is not imposition printing (S22, NO), the controller 90 performs the second jam process (S26). .. Further, when the number of pages of the document data exceeds the number of impositions×2 in S24 (S24, NO), the controller 90 performs the second jam processing (S26). The above is the description of the determination method of the first jam processing or the second jam processing.

According to the inkjet printing apparatus of the above-described embodiment, when all the document data included in the print information can be printed on one print medium, the first jam process described above is performed and the data is included in the print information. When all the original data cannot be printed on one print medium, the above-described second jam processing is performed. Therefore, it is possible to reduce the waste paper by performing the first jam processing. In addition to the above, it is possible to obtain the printed matter in the correct page order by performing the second jam processing.

Further, the above embodiment is an example in which the printing apparatus of the present invention is applied to an inkjet printing apparatus, but the present invention is not limited to this, and is also applicable to a laser type printing apparatus having a photoconductor, for example.

Regarding the printing apparatus of the present invention, the following supplementary notes are further disclosed.
(Appendix)

In the printing apparatus of the present invention, when all the original data included in the print information cannot be printed on one print medium, the control unit uses the print medium existing on the conveyance path when the jam is detected. Therefore, it is possible to perform the jam processing that removes at least the print medium that has caused the jam and the print medium that has been printed subsequent to the print medium that has caused the jam.

Further, in the printing apparatus of the present invention, the control unit prints the print information based on the number of pieces of document data included in the print information, the print condition of double-sided printing or single-sided printing, and the imposition condition of imposition printing. It is possible to determine whether or not all the included document data can be printed on one print medium, and switch the jam processing based on the result of the determination.

A printing system comprising a printing apparatus according to the present invention and a printing information output apparatus for outputting printing information to the printing apparatus, wherein the printing information output apparatus sets all original data included in the printing information to 1 It is determined whether or not it is possible to print on one sheet of print medium, and based on the result of the determination, jam processing switching information for switching between the first jam processing and the second jam processing is output to the printing device, and printing is performed. The device switches between the first jam processing and the second jam processing based on the jam processing switching information.

A print information output device for outputting print information to a printing device according to the present invention, wherein it is determined whether all original data included in the print information can be printed on one print medium, and the determination is made. And a control unit that outputs jam processing switching information for switching between the first jam processing and the second jam processing to the printing device based on the result.

DESCRIPTION OF SYMBOLS 1 Inkjet printer 2 Print job output device 10 Side paper feeder 11 Paper feeder 12 Primary paper feeder 14 Secondary paper feeder 20 Internal paper feeder 21a Paper feeder 21b Paper feeder 21c Paper feeder 21d Paper feeder Base 22a Primary paper feed section 22b Primary paper feed section 22c Primary paper feed section 22d Primary paper feed section 30 Print processing section 31 Head unit 40 Paper ejection section 45 Paper ejection table 48 Paper ejection roller 49 Switching mechanism 50 Inversion section 51 Reversing base 52 Reversing roller 53 Conveying roller 60 Control unit 80 Display unit 70 to 77 Paper detection sensor 90 Control unit 100 Housing 133 Conveying belt CR Circulating conveying route FR Paper feeding conveying route P, P1 to P4 Printing paper

Claims (3)

A print processing unit that performs print processing on a print medium based on print information;
A transport path for transporting the print medium,
A jam detection unit that detects a jam during conveyance of the print medium,
When all the document data included in the print information can be printed on one print medium, the print medium exists on the transport path when the jam is detected, and at least the cause of the jam is A printing apparatus, which removes the print medium that has become defective, and performs a jam process that leaves a print medium that has been printed after the print medium that has caused the jam on the transport path. When all the document data included in the print information cannot be printed on one print medium, the control unit is a print medium existing on the transport path when the jam is detected, The printing apparatus according to claim 1, wherein the jam processing is performed so as to remove at least the print medium that has caused the jam and the print medium that has been printed subsequent to the print medium that has caused the jam. The control unit, based on the number of pieces of original data included in the print information, printing conditions for double-sided printing or single-sided printing, and imposition conditions for imposition printing, all original data included in the print information. 3. The printing apparatus according to claim 1, wherein it is determined whether or not can be printed on one print medium, and the jam processing is switched based on a result of the determination.