System for handling purged sheets in the output of a printer

Sheet-material associating – Associating or disassociating – Sheet associating

Patent

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270 5831, B65H 3902

Patent

active

056390807

ABSTRACT:
Printing systems with a printing apparatus outputting plural regular print job set sheets in a process direction typically have a control system and an output system with a stacking tray in which the print job set sheets are stacked. The printing apparatus may also occasionally output, into the same stacking tray, purge sheets for removal, as determined by the control system. Here the output system includes process direction sheet offsetting apparatus controlled by the control system for automatically substantially offsetting the purge sheets in the process direction in the stacking tray relative to the regular print job set sheets, so that the purge sheets are readily visible and graspable for removal from the regular print job set sheets even from within a regular print job set, and are not stapled. The printing apparatus can thus continue to print and output more regular print job set sheets on top of the purge sheets. The output system may also automatically offset regular print job sets relative to one another in a direction laterally of the process direction so as to even more clearly distinguish offset purge sheets from offset regular job sets, which are offset perpendicularly thereto.

REFERENCES:
patent: 3466983 (1969-09-01), Jagenberg
patent: 4688924 (1987-08-01), Anzai et al.
patent: 4730822 (1988-03-01), Wagner
patent: 5045881 (1991-09-01), Kinder et al.
patent: 5128762 (1992-07-01), Muramatsu et al.
patent: 5316279 (1994-05-01), Corona et al.
patent: 5407081 (1995-04-01), Oshino
patent: 5409202 (1995-04-01), Naramore et al.
Xerox Disclosure Journal, vol. 19, No. 6, Nov./Dec. 1994 p. 497-"Stack Discriminator" by Howell.
Xerox Disclosure Journal, vol. 18, No. 3, May/Jun. 1993 p. 289-"Process Direction Offsetting of Sheets on a Stack" by B. Parks
Xerox Disclosure Journal vol. 19, No. 3, May/Jun., 1994 "Job & User Distinguishing Offset Stacking".

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