Printing apparatus

Patent metadata

Field	Value
Publication number	US-12291024-B2
Application number	US-202318108289-A
Country	US
Kind code	B2
Filing date	Feb 10, 2023
Priority date	Feb 24, 2022
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

A printing apparatus includes a conveyance unit configured to convey a print medium in a conveyance direction, a printing unit, a plurality of rotary members arrayed in the direction intersecting a conveyance direction on a downstream side of the printing unit in the conveyance direction and configured to regulate a height position of the print medium from above the print medium, a holding member configured to rotatably hold the plurality of rotary members, a base member configured to support the holding member, and an adjustment member configured to adjust a position of the holding member in a height direction with respect to the base member.

First claim

What is claimed is:

1. A printing apparatus comprising:
a conveyance unit configured to convey a print medium in a conveyance direction;
a printing unit configured to print an image on the print medium conveyed by the conveyance unit;
a plurality of rotary members, including a first rotary member and a second rotary member, arrayed in a width direction intersecting the conveyance direction on a downstream side of the printing unit in the conveyance direction and configured to regulate a height position of the print medium from above the print medium;
a holding member arranged so as to face the print medium conveyed by the conveyance unit and configured to rotatably hold the first rotary member and the second rotary member;
a base member extending in the width direction beyond a distance between the first rotary member and the second rotary member and configured to support the holding member; and
an adjustment member arranged between the holding member and the base member and configured to adjust positions of the first rotary member and the second rotary member in a height direction with respect to the base member.

2. The apparatus according to claim 1 , further comprising a discharge unit arranged on the downstream side of the printing unit in the conveyance direction and configured to discharge the print medium conveyed by the conveyance unit,
wherein the discharge unit includes:
a discharge roller; and
a spur facing the discharge roller,

the spur is rotatably held by the holding member, and
the plurality of rotary members are located on an upstream side of the spur with respect to the conveyance direction.

3. The apparatus according to claim 1 , wherein
the adjustment member and the base member are fixed to each other at a plurality of locations apart in the direction intersecting the conveyance direction, and at the plurality of locations, a fixing position can be adjusted in the height direction.

4. The apparatus according to claim 3 , wherein
at each of the plurality of parts, a screw hole is formed in one of the adjustment member and the base member, and a hole through which a screw threadably engaging with the screw hole passes is formed in the other, and
the hole has a size in which a position to pass the screw can be changed in a vertical direction.

5. The apparatus according to claim 1 , wherein
the base member has a higher bending strength in the direction intersecting the conveyance direction than that of the adjustment member.

6. The apparatus according to claim 1 , wherein
the adjustment member has a higher bending strength in the direction intersecting the conveyance direction than that of the holding member.

7. The apparatus according to claim 1 , further comprising:
a discharge unit arranged on the downstream side of the printing unit in the conveyance direction and configured to discharge the print medium conveyed by the conveyance unit;
a platen section facing the printing unit; and
a guide section configured to guide the conveyance of the print medium between the platen section and the discharge unit,
wherein the guide section includes:
a first declined section declined, from the platen section to the downstream side in the conveyance direction, in a direction of separating from a support height of the print medium in the platen section;
a second declined section located on the downstream side of the first declined section in the conveyance direction and declined, to the downstream side in the conveyance direction, in the direction of separating from the support height; and
an inclined section inclined, from the second declined section to the downstream side in the conveyance direction, in a direction of approaching the support height,

a declination of the second declined section is more moderate than that of the first declined section, and
the plurality of rotary members are arranged at positions facing the second declined section.

8. The apparatus according to claim 1 , wherein
the adjustment member includes:
a first plate section; and
a second plate section,

a vertical cross-section of the adjustment member has an L shape formed by the first plate section and the second plate section, and
the base member is fixed to one of the first plate section and the second plate section, and the holding member is fixed to the other.

Assignees

• Canon Kk

Inventors

• Uchida Kota
• Fukui Kohei
• Suzuki Yoshiaki
• Ohashi Takakazu
• Nieda Kengo

Classifications

• B41J13/025

  Special roller holding or lifting means, e.g. for temporarily raising one roller of a pair of nipping rollers for inserting printing material · CPC title

• B41J11/48

  Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers {, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts (B41J15/042 takes precedence)} · CPC title

• B41J11/007 Primary

  Conveyor belts or like feeding devices · CPC title

• B41J11/06 Primary

  Flat page-size platens {or smaller flat platens having a greater size than line-size platens (B41J11/0085 takes precedence)} · CPC title