US4386771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing a sheet from a drum
Assignee: Xerox Corp
•
Filing: 1981-05-08
•
Granted: 1983-06-07
•
Expires: 2001-05-08
Abstract
Abstract A facsimile transceiver unit utilizing a drum wherein a drum gripper bar grips an edge of a sheet to be scanned during system operation. On termination of operation, the drum direction is reversed allowing the beam strength of the scanned sheet to lift the free edge of the sheet off the drum. The sheet is then picked off by a suitable member and directed out of the facsimile transceiver unit. At the same time, the gripper bar is opened releasing the sheet for easy operator removal. In a preferred method, the sheet is bumped by the raised gripper bar to ensure release of the sheet from the facsimile transceiver unit.
Inventors
- 👤 Kushkumar N. Lakdawala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:53
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/08; H04N1/0804; H04N1/0813; B; B65; B65H; B65H29/00; B65H29/54; B65H29/56; H04N1/083; H04N1/0839
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
The method of removing a sheet from the drum of a facsimile transceiver device, which facsimile transceiver device processes a sheet attached to said drum while said drum is rotating in a first direction in which the leading edge of said sheet is gripped by a gripper bar, which comprises: stopping said drum; reversing the direction of rotation of said drum so that the free edge of said sheet becomes the leading edge of said sheet and allowing the beam strength of said sheet to raise said free edge of said sheet from said drum while simultaneously stripping said sheet from said drum and opening said gripper bar to release said sheet, said reverse direction rotation continuing until said gripper bar passes a home position; stopping said drum; rotating said drum again in said first direction until said gripper bar passes said home position; stopping said drum; reversing the rotation of said drum; and stopping said drum when said gripper bar is in said home position.
Claim 2
Independent Claim
166 words
The method of removing a sheet from the drum of a facsimile transceiver device, which facsimile transceiver device processes a sheet attached to said drum while said drum is rotating in a first direction in which the leading edge of said sheet is gripped by a gripper bar, which comprises: stopping said drum; reversing the direction of rotation of said drum so that the free edge of said sheet becomes the leading edge of said sheet and allowing the beam strength of said sheet to raise said free edge of said sheet from said drum while simultaneously stripping said sheet from said drum and opening said gripper bar to release said sheet, said reverse direction rotation continuing until said gripper bar passes a home position; stopping said drum; rotating said drum again in said first direction until said gripper bar passes said home position; stopping said drum; reversing the rotation of said drum; and stopping said drum when said gripper bar is in said home position.
References Cited (Backward Citations)
US1260017A
Cited
US2431360A
Cited
US3618123A
Cited
US3790159A
Cited
US3808603A
Cited
US3854715A
Cited
US4259695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |