Browse Prior Art Database

MULTIPLE USE JUNCTION BLOCK

IP.com Disclosure Number: IPCOM000025389D
Original Publication Date: 1985-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 111K

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electrophotographic printing machine, a cleaning unit removes residual toner particles from a photoconductive surface. The residual toner particles may be reclaimed, i.e. transported back to the developer unit for subsequent reuse or transported to a waste toner container. Moreover, residual toner particles may be separated into contaminated toner particles which are transported to the waste toner container and toner particles which may be reused and are transported to the developer unit. It is highly desirable to be capable of selecting, in the field, the manner in which the printing machine will be operating. Thus, it is desirable to be able to switch from transporting all of the toner particles to the waste toner container to only transporting the contaminated particles thereto with the other toner particles being reclaimed and transported to the developer unit. In order to achieve the foregoing, an appropriate junction block must be utilized. As shown in Figure 1, cleaning unit 10 removes toner particles from the photoconductive surface after transfer of the toner powder image to the copy sheet. The contaminated toner particles are transported by auger 16 to junction block 18. The uncontaminated or reclaimed toner particle's are transported by auger 14 to developer housing 12 for subsequent reuse. Junction block 18 couples auger 16 with auger 20. Auger 20 receives the contaminated toner particles from auger 18 and transports them to waste toner container 22.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

MULTIPLE USE JUNCTION BLOCK
Proposed A. F. h4cCarroll Classification

U.S. Cl. 355/3
Int. Cl. G03g 15/00

FK. /

PHOTORECPTOR CLEANER \

RECLAIMED TONER

DEVELOPER HOUSING

WASTE TONER

JUNCTION BLOCK

SECTION VIEW OF FIG 3

CONTAM IMTED

C.T. A.

TONER AUGER

(OPTION IN FIG. I ONLY)

(USED WITH BOTH OPTIONS)

Volume 10 Number 1 January/February 1985 37

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

Page 2 of 2

MULTIPLE USE JUNCTION BLOCK (Cont'd)

In an electrophotographic printing machine, a cleaning unit removes residual toner particles from a photoconductive surface. The residual toner particles may be reclaimed, i.e. transported back to the developer unit for subsequent reuse or transported to a waste toner container. Moreover, residual toner particles may be separated into contaminated toner particles which are transported to the waste toner container and toner particles which may be reused and are transported to the developer unit. It is highly desirable to be capable of selecting, in the field, the manner in which the printing machine will be operating. Thus, it is desirable to be able to switch from transporting all of the toner particles to the waste toner container to only transporting the contaminated particles thereto with the other toner particles being reclaimed and transported to the developer unit. In order to achieve the foregoing, an appropriate junction block must be utilized. As shown in Figure 1, cleaning unit 10 removes toner particles from the photoconductive surface after transfer of the toner powder image to the copy sheet. The contaminated toner particles are transported by auger 16 to junction block 18. The uncontaminated or reclaimed toner particle's are transported by auger 14 to developer housing 12 for subsequent reuse. Junction block 18 couples auger 16 with auger 20. Auger 20 receives the contaminated toner particles from auger 18 and transports them to waste toner container 22.

Referring now to Figure 2, th...