Browse Prior Art Database

Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


Dual-cycle xerographic copiers in which imaging, development and transfer occurs on the first cycle and cleaning on the second cycle are known. The perceived advantage of such copiers is the dual function of subsystem components with a resultant cost savings over conventional single cycle xerographic systems. How-ever, a major drawback to the dual-cycle system is the obvious requirement that the circumference of the photoreceptor must accommodate the largest paper size for which the copier is designed in order that a complete image occurs on the first cycle. Further, constraints on unit manufacturing cost and copier size has encouraged a trend toward copiers employing short edge paper feed. Combined with a requirement for copying legal size documents (1 1" x 14"), the photoreceptor is constrained to be- 4.7" in diameter in a dual-cycle copier. This is incompatible with the need to minimize the physical size of the copier, especially the height.