US4420246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple reproduction apparatus
Assignee: Ricoh Co Ltd
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Filing: 1981-11-05
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Granted: 1983-12-13
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Expires: 2001-11-05
Abstract
Abstract An improved multiple reproduction apparatus is provided. The apparatus includes an original holder for holding thereon an original from which multiple copies are to be made and an optical system for leading a light image of the original to a desired position, the optical system constituting a part of the exposure system of the apparatus. Either of the original holder or optical system is movably provided with respect to the other, which is fixedly provided on the apparatus. The present apparatus further comprises wait time control means so that the original holder or optical system stays still for a predetermined period of time at its home position in response to the size of the original or copy paper.
Inventors
- 👤 Mitsuhiro Nonaka
- 👤 Yuichi Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:18
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03G; G03G15/00; G03G15/22; G03G15/28; G03G15/30; G03G15/305
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
196 words
Apparatus for making at least one copy from an original comprising: an original holder for holding thereon said original; image forming means having an image forming surface on which a copy image of said original is to be formed, an exposure system for exposing an image of said original onto said image forming surface; driving means for intermittently driving after a wait time period either one of said original holder or at least a part of said exposure system for image exposing motion relative to the other, in a reciprocating manner between a home position from where an image exposing motion is initiated and an advanced position from where a returning motion back to said home position is initiated; transferring means for transferring said copy image formed on said image forming surface to a transfer medium; and wait time period control means for controlling the length of a wait time period at said home position between completion of a returning motion and initiation of a next image exposing motion of said one of said original holder or at least a part of said exposure system in response to the size of said original or transfer medium.
Claim 2
Dependent Claim
196 words
Apparatus for making at least one copy from an original comprising: an original holder for holding thereon said original; image forming means having an image forming surface on which a copy image of said original is to be formed, an exposure system for exposing an image of said original onto said image forming surface; driving means for intermittently driving after a wait time period either one of said original holder or at least a part of said exposure system for image exposing motion relative to the other, in a reciprocating manner between a home position from where an image exposing motion is initiated and an advanced position from where a returning motion back to said home position is initiated; transferring means for transferring said copy image formed on said image forming surface to a transfer medium; and wait time period control means for controlling the length of a wait time period at said home position between completion of a returning motion and initiation of a next image exposing motion of said one of said original holder or at least a part of said exposure system in response to the size of said original or transfer medium.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said wait time period control means includes a detector for detecting the size of said original or transfer medium.
Claim 4
Dependent Claim
112 words
The apparatus of claim 1 wherein said wait time period control means includes a reference pulse generator for supplying a reference pulse signal, a controller having a counter to count the number of pulses received from said reference pulse generator until it counts up to a first predetermined value when said image exposing motion is initiated and a detector for supplying a size signal having the size information of said original or transfer medium to said controller, said size signal setting the value of said counter to a second predetermined value which is smaller than said first predetermined value, the difference between said second and first values determining said wait time period.
Claim 5
Dependent Claim
46 words
The apparatus of claim 3 further comprising a home position switch which is turned on when said original holder or at least a part of said exposure system, whichever is movable, has returned to the home position thereby setting the counter to said second predetermined value.
Claim 6
Dependent Claim
48 words
The apparatus of claim 3 wherein said detector includes a plurality of switches, each corresponding to a particular size of said transfer medium, which are selectively operated by an associated actuating means provided on a magazine for storing therein a quantity of transfer medium of a predetermined size.
Claim 7
Dependent Claim
16 words
The apparatus of claim 5 wherein said actuating means is a projection formed on said magazine.
Claim 8
Dependent Claim
37 words
The apparatus of claim 1 wherein said wait time period control means controls the length of said wait time period at said home position to be longer for a longer size of said original or transfer medium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |