JP-2026075756-A - printing device

Abstract

[Problem] To provide a printing apparatus that can improve user work efficiency even when switching the stacker to which the media is discharged. [Solution] The printing apparatus comprises a printing unit, a transport unit, and two stackers ST1 and ST2. The first stacker ST1 discharges the medium with one side facing upwards. The second stacker ST2 discharges the medium with the other side facing upwards. In the case of double-sided printing, the side of the medium that is printed first is designated as the first side P1, and the side that is printed later is designated as the second side P2. When the medium is discharged to the first stacker ST1, the page printed on the first side P1 is designated as the first page, and the page printed on the second side P2 is designated as the second page. If the medium is discharged from the first stacker ST1 to the second stacker ST2 during printing, the medium discharged to the second stacker ST2 is configured such that the page printed on the first side P1 is set as the second page, and the page printed on the second side P2 is set as the first page. [Selection Diagram] Figure 10

Inventors

• 小平 寛久
• 原田 裕太朗
• 島田 知明

Assignees

• セイコーエプソン株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (16)

1. The printing department, which prints onto the medium, A conveying unit that conveys the medium in the conveying direction, A first stacker is provided downstream of the printing section in the aforementioned transport direction, and discharges the medium with one side facing upward. The system includes a second stacker located downstream of the printing section in the aforementioned transport direction, from which the material is discharged with the other side, which is the opposite side of the first side, facing upwards. In the case of double-sided printing, the side of the medium that is printed on first is designated as the first side, and the side that is printed on second is designated as the second side. When the output destination of the media is the first stacker, if the page printed on the first side is designated as the first page and the page printed on the second side is designated as the second page, A printing apparatus characterized in that, when the destination of the media is switched from the first stacker to the second stacker during printing, the media discharged to the second stacker has pages to be printed on the first side set to the second page, and pages to be printed on the second side set to the first page.
2. The printing department, which prints onto the medium, A conveying unit that conveys the medium in the conveying direction, A first stacker is provided downstream of the printing section in the aforementioned transport direction, and discharges the medium with one side facing upward. The system includes a second stacker located downstream of the printing section in the aforementioned transport direction, from which the material is discharged with the other side, which is the opposite side of the first side, facing upwards. In the case of double-sided printing, the side of the medium that is printed on first is designated as the first side, and the side that is printed on second is designated as the second side. When the output destination of the media is the first stacker, if the page printed on the first side is designated as the first page and the page printed on the second side is designated as the second page, A printing apparatus characterized in that, when the destination of the media is switched from the first stacker to the second stacker during printing, the media discharged to the second stacker is set in descending order from the last page of the entire set, with the pages to be printed on the first side set to the first page and the pages to be printed on the second side set to the second page.
3. A printing apparatus according to claim 1, A printing apparatus characterized in that, before the switching of the medium discharge destination from the first stacker to the second stacker is determined, print data for discharge to the first stacker and print data for discharge to the second stacker are generated.
4. A printing apparatus according to claim 1, A printing apparatus characterized in that, once a switch in the destination for discharging the media from the first stacker to the second stacker is determined, print data for discharging to the second stacker is generated.
5. A printing apparatus according to claim 1, The first stacker is equipped with a detection unit for detecting the load amount, A printing apparatus characterized in that, when it is detected that the stacking amount of the first stacker exceeds a threshold during printing, the destination of the media is switched from the first stacker to the second stacker.
6. A printing apparatus according to claim 5, The threshold is smaller than the maximum amount that the first stacker can load. A printing apparatus characterized in that, in a medium on which the first page has been printed on the first side before it is detected that the load has exceeded the threshold, the second page is printed on the second side.
7. A printing apparatus according to claim 6, A printing apparatus characterized in that, after it is detected that the stacking amount has exceeded the threshold, when the last medium on which the first page has been printed on the first surface has passed the branching point between the first path to the first stacker and the second path to the second stacker, the apparatus switches from the first stacker to the second stacker.
8. A printing apparatus according to claim 1, A printing apparatus characterized by comprising a control unit that, when the destination of the media is switched from the first stacker to the second stacker during printing, sets the page to be printed on the first side to the second page and the page to be printed on the second side to the first page.
9. The printing department, which prints onto the medium, A conveying unit that conveys the medium in the conveying direction, A first stacker is provided downstream of the printing section in the aforementioned transport direction, and discharges the medium with one side facing upward. A second stacker is provided downstream of the printing section in the aforementioned transport direction, and discharges the material with the other side, which is the opposite side of the first side, facing upwards. The system includes a reversal path provided downstream of the printing section in the transport direction for reversing the front and back sides of the medium, In single-sided printing, if the side to be printed is designated as the first side, A printing apparatus characterized in that, when the destination of the media is switched from the first stacker to the second stacker during printing, the media discharged to the second stacker is configured to be transported to the reversal path after the first side has been printed before being discharged.
10. A printing apparatus according to claim 9, If the transport speed when printing on the first surface is defined as the first speed, and the transport speed in the reversal path is defined as the second speed, A printing apparatus characterized in that the second speed is faster than the first speed.
11. A printing apparatus according to claim 9, The first stacker is equipped with a detection unit for detecting the load amount, A printing apparatus characterized in that, when it is detected that the stacking amount of the first stacker exceeds a threshold during printing, the destination of the media is switched from the first stacker to the second stacker.
12. A printing apparatus according to claim 9, A printing apparatus comprising a control unit that, when switching the output destination of the medium from the first stacker to the second stacker during printing, sets the medium to be transported to the reversal path after printing on the first side before being output.
13. A printing apparatus according to claim 1 or claim 9, The first stacker and the second stacker have opposite directions from which the medium is discharged. A printing apparatus characterized in that, when the destination of the media is switched from the first stacker to the second stacker, the orientation of the print data is maintained for the media discharged to the second stacker.
14. A printing apparatus according to claim 1 or claim 9, The system includes a detection unit for detecting jam in the aforementioned medium, The transport unit includes a transport path through which the medium is transported. The transport unit includes, located downstream of the printing unit in the transport direction along the transport path, a first path for discharging the medium to the first stacker, a second path for discharging the medium to the second stacker, and a path selection member at the branching point between the first and second paths for selecting one of the first and second paths as the destination for discharging the medium. A printing apparatus characterized in that, when a jam is detected during printing, and it is detected that the medium of the jam has passed the branching position, the destination of the subsequent media of the jam is switched from the first stacker to the second stacker.
15. A printing apparatus according to claim 1 or claim 9, The system includes a detection unit for detecting abnormalities in the first stacker, A printing apparatus characterized in that, if an abnormality in the first stacker is detected during printing, the destination of the media is switched from the first stacker to the second stacker.
16. A printing apparatus according to claim 1 or claim 9, A printing apparatus characterized by having a notification unit that notifies when the output destination is switched.

Description

This invention relates to a printing apparatus comprising a conveying unit for transporting a medium, a printing unit for printing on the medium, and a stacker for stacking the discharged medium. For example, Patent Document 1 discloses a printing apparatus comprising a transport unit for transporting a medium, a printing unit for printing on the medium, and a plurality of stackers for discharging the printed medium. This printing apparatus includes two output trays and a high-capacity paper output device as the plurality of stackers. The two output trays function as a first stacker that discharges the medium with one side facing upwards, and a second stacker that discharges the medium with the opposite side facing upwards. In this printing apparatus, the destination stacker for the discharged medium is switched between the output trays and the high-capacity paper output device during printing. Japanese Unexamined Patent Publication No. 6-127810 Figure 1 is a schematic front view showing a section of the printing apparatus in the first embodiment.Figure 2 is a schematic cross-sectional view showing the media transport state during single-sided printing.Figure 3 is a schematic cross-sectional view showing the media transport state during single-sided printing.Figure 4 is a schematic cross-sectional view showing the media transport state during double-sided printing.Figure 5 is a schematic cross-sectional view showing the media transport state during double-sided printing.Figure 6 is a schematic side view illustrating a loading sensor that detects bundles of media loaded onto a stacker.Figure 7 is a schematic side view illustrating a loading sensor that detects bundles of media loaded onto a stacker.Figure 8 is a block diagram showing the electrical configuration of a printing apparatus.Figure 9 is a schematic diagram showing the processing flow in stacker switching control during double-sided printing in the first comparative example.Figure 10 is a schematic diagram showing the processing flow in stacker switching control during double-sided printing in the first embodiment.Figure 11 is a schematic diagram showing the media bundles loaded onto the stacker during stacker switching control in the first comparative example.Figure 12 is a schematic diagram showing the media bundles loaded onto the stacker in the stacker switching control in the first embodiment.Figure 13 is a schematic diagram illustrating the orientation of the media bundles discharged into the two stackers.Figure 14 is a schematic plan view of the two stackers shown in Figure 13, viewed from above.Figure 15 is a schematic diagram showing print job data and reconstruction data for stacker switching control.Figure 16 is a schematic diagram showing the notification information displayed on the display unit.Figure 17 is a schematic diagram showing the processing flow in stacker switching control during double-sided printing in the second comparative example.Figure 18 is a schematic diagram showing the processing flow in stacker switching control during double-sided printing in the second embodiment.Figure 19 is a schematic diagram showing the stack of media loaded onto the stacker during stacker switching control in the second comparative example of double-sided printing.Figure 20 is a schematic diagram showing the stack of media placed on the stacker during stacker switching control in the second embodiment of double-sided printing.Figure 21 is a schematic diagram showing the processing flow in stacker switching control during single-sided printing in the third comparative example.Figure 22 is a schematic diagram showing the processing flow in stacker switching control during single-sided printing in the third embodiment.Figure 23 is a schematic diagram showing the stack of media loaded onto the stacker during stacker switching control when printing on one side in the third comparative example.Figure 24 is a schematic diagram showing the stack of media loaded onto the stacker during stacker switching control when printing on one side in the third embodiment.Figure 25 is a schematic diagram showing the processing flow in stacker switching control during single-sided printing in the fourth comparative example.Figure 26 is a schematic diagram showing the processing flow in stacker switching control during single-sided printing in the fourth embodiment.Figure 27 is a schematic diagram showing the stack of media loaded onto the stacker during stacker switching control when printing on one side in the fourth comparative example.Figure 28 is a schematic diagram showing the stack of media loaded onto the stacker during stacker switching control when printing on one side in the fourth embodiment.Figure 29 is a schematic diagram showing the processing flow in stacker switching control during double-sided printing in the fifth embodiment, according to the second embodiment.Figure 30 is a schematic diagram showing the stack of media loaded onto the stacker d