United States Patent m
Damji et al.
 PROCESS CARTRIDGE INCLUDING A
HANDLE DEFINING PART OF A MACHINE
 Inventors: Dhirendra C. Damji. Webster; Ajay Kumar. Fairport; Douglas W. Shaffer,
Pittsford. all of N.Y.
 Assignee: Xerox Corporation, Stamford. Conn.
 Appl. No.: 970,839
 Filed: Nov. 14,1997
 Int CL6 G03G 21/16; G03G 21/18
 U.S. CI 399/110; 399/111; 399/124
 Field of Search 399/110, 111.
399/112. 113, 114. 124
 References Cited
U.S. PATENT DOCUMENTS
4,264,199 4/1981 Kuehnle 355/66
4,394,084 7/1983 Kuehnle 399/107
4,526,464 7/1985 Milillo 399/124
4,598,993 7/1986 Mi2utani et al 399/111
5,055,876 10/1991 Matsuoka et al 399/111
5,353,100 10/1994 Ohtsuka 399/111
5,585,889 12/1996 Shishidoetal 399/113
Primary Examiner—Joan H. Pendegrass Attorney, Agent, or Firm—Tallam Nguti
[ii] Patent Number: 5,784,671  Date of Patent: Jul. 21, 1998
An electrostatographic process cartridge detachably mountable into a cavity denned by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge includes an elongate housing having walls defining a front end of the process cartridge, a rear end thereof, and a process chamber; a rotatable endless photoreceptive member having a closed loop path within the process chamber, and an image bearing surface for holding a formed toner image, and being mounted within the process chamber and towards the rear end for contacting a toner image receiving sheet moving along a machine sheet path for toner image transfer. The process cartridge also includes plural electrostatographic process components located along the closed loop path for forming a toner image on, and transferring such toner image from, the image bearing surface to the sheet of paper, a cleaning component for removing and transporting waste toner from the image bearing surface, and a waste toner sump subassembly mounted to an end of the elongate housing for receiving and containing waste toner removed and transported thereto by the cleaning component Importantly, the process cartridge includes a module handle attached to the rear end thereof for gripping and use by an operator for inserting and removing the process cartridge from the defined cavity, and forming a part of the machine sheet path for contacting and guiding a sheet of paper moving from the photoreceptive member.
5 Claims, 7 Drawing Sheets