EP0346851A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A sheet post-processing apparatus
Assignee: Canon Inc
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Filing: 1989-06-13
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Granted: —
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Expires: 2009-06-13
Abstract
Abstract A sheet-processing apparatus (1) includes a sheet discharger (10-14) for discharging sheets, a stacker (22) for stacking the sheets discharged by the discharger (10-14), a stapler (24) for stapling the sheets stacked on the stacker (22), moving device (17) for moving the sheets stapled by the stapler (24) from the the stacker (22) toward downstream with respect to a direction of sheet discharge, substantially vertically movable accommodator (25), constituting a part of the stacker (22), for accommodating the sheets moved from the stacker (22) by the moving device (17).
Inventors
- 👤 Masakazu Hiroi
- 👤 Mitsuhiro Mukasa
- 👤 Nobutaka Uto
- 👤 Masaaki Sato
- 👤 Takeshi Honjo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 04:39
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/30; B65H31/3081; B42; B42C; B42C1/00; B42C1/12; B65H31/04; B65H31/08; B65H31/10; B65H31/12; B65H31/14; B65H31/18; B65H31/34; B65H45/00; B65H45/12; B65H45/14; B65H45/142; G; G03; G03G; G03G15/00; G03G15/65; G03G15/6538; G03G15/6541; G03G15/6547; B65H2301/00; B65H2301/10; B65H2301/16; B65H2301/163; B65H2801/00; B65H2801/24; B65H2801/27; G03G2215/00; G03G2215/00362; G03G2215/00789; G03G2215/00822; G03G2215/00827; G03G2215/00877; G03G2215/00886; G03G2215/0089
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
81 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means.
Claim 2
Dependent Claim
81 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means.
Claim 3
Dependent Claim
39 words
An apparatus according to Claim 1, wherein said stacking means constitutes a first tray for supporting a stapling side of said sheets, and wherein said accommodating means constitutes a second tray for supporting a non-staple side of the sheets.
Claim 4
Dependent Claim
22 words
An apparatus according to Claim 2, wherein said moving means moves the stapled sheets until they are supported by the second tray.
Claim 5
Dependent Claim
29 words
An apparatus according to Claim 3, wherein said first and second trays are normally supported in a manner to provide their sheet stacking surfaces substantially at the same level.
Claim 6
Dependent Claim
42 words
An apparatus according to Claim 4, further comprising vertical movement control means for lowering the second tray to bring a top surface of the sheets on the second tray into the same level as a sheet stacking surface of the first tray.
Claim 7
Dependent Claim
66 words
An apparatus according to Claim 5, wherein the first and second trays are inclined upwardly toward downstream with respect to a direction of sheet discharge, and there is provided a regulating plate for regulating positions of the edge of the sheets stacked on said stacking means in a direction of the sheet discharge, and wherein said regulating plate is disposed adjacent upstream ends of said trays.
Claim 8
Dependent Claim
16 words
An apparatus according to Claim 6, wherein said regulating plate also functions as said moving means.
Claim 9
Dependent Claim
68 words
An apparatus according to Claim 1, wherein said stacking means and said accommodating means are inclined upwardly toward downstream with respect to a direction of sheet discharge, wherein there is provided a regulating plate for regulating positions of edges of the sheets stacked on said stacking means in a direction of sheet discharge and wherein said regulating plate is disposed adjacent an upstream end of said stacking means.
Claim 10
Dependent Claim
15 words
An apparatus according to Claim 8, wherein said regulating plate also functions as moving means.
Claim 11
Dependent Claim
21 words
An apparatus according to Claim 1, further comprising an aligning rotatable member for abutting the discharged sheets to the regulating plate.
Claim 12
Dependent Claim
18 words
An apparatus according to Claim 10, wherein said aligning rotatable member is disposed at an accommodating means side.
Claim 13
Dependent Claim
73 words
An apparatus according to Claim 11, further comprising a regulating plate for regulating edges of the sheets stacked on said stacking means in a direction of the sheet discharge, and control means for controlling said regulating plate for selectively positioning said regulating plate at a position where it is faced to said stapling means and is effective to regulate the sheets or a position where it regulates the sheets on said accommodating means.
Claim 14
Dependent Claim
25 words
An apparatus according to Claim 1, wherein said moving means includes a rotatable belt with means for pressing to the sheets on said stacking means.
Claim 15
Dependent Claim
97 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; and means for shifting stapled sets of sheet to prevent overlapping stapled portions of adjacent sets.
Claim 16
Dependent Claim
97 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; and means for shifting stapled sets of sheet to prevent overlapping stapled portions of adjacent sets.
Claim 17
Dependent Claim
31 words
An apparatus according to Claim 14, further comprising a movable lateral guide for aligning lateral edge of the sheets, wherein said lateral guide is effective to function as said shifting means.
Claim 18
Dependent Claim
116 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; regulating means for regulating edges of the sheet stacked on said stacking means; and control means for controlling said regulating plate to change its regulating position to provide different relative position to said stapling means.
Claim 19
Dependent Claim
116 words
A sheet-processing apparatus, comprising: means for discharging sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; regulating means for regulating edges of the sheet stacked on said stacking means; and control means for controlling said regulating plate to change its regulating position to provide different relative position to said stapling means.
Claim 20
Dependent Claim
19 words
An apparatus according to Claim 16, wherein said regulating plate regulates the sheets in a direction of sheet discharge.
Claim 21
Dependent Claim
15 words
An apparatus according to Claim 17, further comprising a keyboard for setting a stapling position.
Claim 22
Dependent Claim
19 words
An apparatus according to Claim 18, further comprising a lateral guide for regulating a lateral edges of the sheets.
Claim 23
Dependent Claim
157 words
A sheet-processing apparatus, comprising: a sheet passage for guiding sheets; discharging means disposed downstream of said sheet conveyance passage, for discharging the sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; switching means, in said sheet conveyance passage, for switching path of the sheets; a first auxiliary sheet passage blanching out of said sheet conveyance passage through said switching means; and a second auxiliary conveyance passage merging into said sheet conveyance passage; by which an optional apparatus capable of performing a function other than stapling function can be coupled with the apparatus.
Claim 24
Dependent Claim
157 words
A sheet-processing apparatus, comprising: a sheet passage for guiding sheets; discharging means disposed downstream of said sheet conveyance passage, for discharging the sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means; switching means, in said sheet conveyance passage, for switching path of the sheets; a first auxiliary sheet passage blanching out of said sheet conveyance passage through said switching means; and a second auxiliary conveyance passage merging into said sheet conveyance passage; by which an optional apparatus capable of performing a function other than stapling function can be coupled with the apparatus.
Claim 25
Dependent Claim
14 words
An apparatus according to Claim 20, wherein said optional apparatus is a sheet folder.
Claim 26
Dependent Claim
126 words
An image forming apparatus, comprising: means for forming images on sheets; a sheet conveyance passage for introducing the sheets into said image forming means a sheet conveyance passage for the sheets on which images are formed by said image forming means; discharging means communicated with said sheet conveyance passage for discharging the sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means.
Claim 27
Dependent Claim
126 words
An image forming apparatus, comprising: means for forming images on sheets; a sheet conveyance passage for introducing the sheets into said image forming means a sheet conveyance passage for the sheets on which images are formed by said image forming means; discharging means communicated with said sheet conveyance passage for discharging the sheets; stacking means for stacking the sheets discharged by said discharging means; stapling means for stapling the sheets stacked on said stacking means; moving means for moving the sheets stapled by said stapling means from the said stacking means toward downstream with respect to a direction of sheet discharge; substantially vertically movable accommodating means, constituting a part of said stacking means, for accommodating the sheets moved from said stacking means by said moving means.
Claim 28
Dependent Claim
47 words
An apparatus according to Claim 22, wherein further comprising an automatic document feeder for circulating originals to be copied, wherein plural originals are circulated a plural number of times to form plural sets of sheets which are stapled by said stapling means for each of the sets.
References Cited (Backward Citations)
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