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MOTION SENSOR - OUTPUT ROLL CAPTURED

IP.com Disclosure Number: IPCOM000025380D
Original Publication Date: 1985-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 82K

Publishing Venue

Xerox Disclosure Journal

Abstract

Referring to the drawing figures, a non-vacuum copy sheet motion sensor/jam detector 5 for a copying or printing machine is proposed. Detector 5 uses a star wheel 7 rotatably mounted by bearing 8 on the outside of the stationary sleeve-like housing 9 for the drive shaft 10 to the lower output roll 11 of copy sheet feed roll pair 11, 12. Roll pair 11, 12 are part of the copy sheet transport path which brings one copy sheet 13 at a time from the machine paper supply tray 16 forward into transfer relation with the machine photoreceptor where the developed image is transferred from the machine photoreceptor to the copy sheet. The image bearing copy sheet is thereafter fed to the machine fuser where the toner imaged is fixed. Thereafter, the finished copy sheet is discharged from the fuser to a suitable output such as a copy sheet stacker.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

MOTION SENSOR - OUTPUT ROLL
CAPTURED
Edward P. DeJong

Proposed Classification
U.S. C1. 271/258 Int. CI. B65h 7/02

FIG I

I0

15 Volume 10 Number 1 January/February 1985

I3

[This page contains 1 picture or other non-text object]

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MOTION SENSOR - OUTPUT ROLL CAPTURED (Cont'd)

Referring to the drawing figures, a non-vacuum copy sheet motion sensor/jam detector 5 for a copying or printing machine is proposed. Detector 5 uses a star wheel 7 rotatably mounted by bearing 8 on the outside of the stationary sleeve-like housing 9 for the drive shaft 10 to the lower output roll 11 of copy sheet feed roll pair 11, 12. Roll pair 11, 12 are part of the copy sheet transport path which brings one copy sheet 13 at a time from the machine paper supply tray 16 forward into transfer relation with the machine photoreceptor where the developed image is transferred from the machine photoreceptor to the copy sheet. The image bearing copy sheet is thereafter fed to the machine fuser where the toner imaged is fixed. Thereafter, the finished copy sheet is discharged from the fuser to a suitable output such as a copy sheet stacker.

Star wheel 7 is mounted just inside the path of movement of the copy sheets 13, the effective diameter of wheel 7 being such that the teeth of wheel 7 are engaged by the copy sheet passing through the nip of roll pair 11, 12. A photocell type sensor 14 has the outer toothed periphery of wheel 7 passing therethrough, the output of...