US 12,326,684 B2
Image forming system
Takahiro Suzuki, Saitama (JP); Ryota Fujioka, Chiba (JP); Yoshiro Tsukada, Chiba (JP); and Kenichiro Kitajima, Ibaraki (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 18, 2022, as Appl. No. 17/890,452.
Claims priority of application No. 2021-138073 (JP), filed on Aug. 26, 2021.
Prior Publication US 2023/0069158 A1, Mar. 2, 2023
Int. Cl. G03G 15/00 (2006.01)
CPC G03G 15/6582 (2013.01) [B65H 2301/5126 (2013.01); B65H 2401/13 (2013.01); B65H 2801/27 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An image forming system comprising:
an image forming apparatus including an image forming unit configured to perform printing processing to form an image on a sheet as a printed product and a first control unit configured to control the image forming unit;
a varnish application apparatus provided downstream in a sheet conveyance direction with respect to the image forming apparatus, wherein the varnish application apparatus includes a varnish application unit configured to apply varnish to the sheet with the image formed on the sheet by the image forming unit and a second control unit configured to control the varnish application unit; and
a sheet processing apparatus provided downstream in the sheet conveyance direction with respect to the varnish application apparatus,
wherein the sheet processing apparatus includes an inlet receiving roller configured to receive the sheet discharged from the varnish application apparatus, a processing unit configured to perform predetermined processing on the sheet received by the inlet receiving roller, and a third control unit configured to control the processing unit,
wherein the sheet processing apparatus includes an emboss roller configured to have a surface with an unevenness formed on the emboss roller and a nip portion receiving roller configured to form a nip portion with the emboss roller,
wherein the sheet processing apparatus includes a first conveyance path which does not convey the sheet to the emboss roller and a second conveyance path which conveys the sheet to the emboss roller,
wherein, in a case where a first print instruction for causing the varnish application apparatus to perform varnish application processing and not causing the emboss roller to perform embossing processing is received, the sheet processing apparatus conveys the sheet on which the varnish application apparatus has performed the varnish application processing to the first conveyance path so that the conveyed sheet does not receive the embossing processing by the emboss roller and is discharged to a discharge tray,
wherein, in a case where a second print instruction for causing the varnish application apparatus to perform varnish application processing and causing the emboss roller to perform embossing processing is received, the sheet processing apparatus conveys the sheet on which the varnish application apparatus has performed the varnish application processing to the second conveyance path so that the conveyed sheet receives the embossing processing by the emboss roller and is discharged to the discharge tray,
wherein the first conveyance path and the second conveyance path branch off from each other at a branching point on an upstream side in the sheet conveyance direction inside the sheet processing apparatus, and merge at a merging point on a downstream side,
wherein both a sheet having been conveyed along the first conveyance path and a sheet having been conveyed along the second conveyance path are discharged to the discharge tray that is identical one via the merging point, and
wherein the first control unit is capable of communicating with the second control unit and the third control unit.