Browse Prior Art Database

Contact Printing Random Forms Printer System

IP.com Disclosure Number: IPCOM000092122D
Original Publication Date: 1968-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Brownstein, R: AUTHOR

Abstract

Any one of several reproduction techniques, e.g., contact printing, electrophotography, can be used in a contact printing mode to overprint randomly selectable predetermined indicia formats. These are realized under direct or indirect computer control from a master onto output paper from a standard impact-type computer printer.

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Contact Printing Random Forms Printer System

Any one of several reproduction techniques, e.g., contact printing, electrophotography, can be used in a contact printing mode to overprint randomly selectable predetermined indicia formats. These are realized under direct or indirect computer control from a master onto output paper from a standard impact-type computer printer.

A full-size silver film or appropriate transparent or translucent master of the required business form is selected by mechanism, not shown, from magazine 1 containing a variety of different masters. Each selected master is deposited at predetermined time intervals on a conveyor system 2 comprising belts 3 and 4. These are entrained over drums 5, 6 and 6, 7, respectively, to move the master at a preselected constant speed to exposure station 8. At the latter, an image is transferred to photoconductive belt 9 that carries the transferred image successively past developing station 10, toner transfer station 11, cleaning station 12, and charging station 13. At this, belt 9 is reconditioned so it can receive another image as it completes the closed loop back to station 8.

Meanwhile, cut forms 14 are successively advanced from hopper 15 past toner transfer station 11 and overprinted before being advanced into stacker 16. If required, a continuous form can be substituted for 14 as the input, and overprinted by being fed past 11.

Many sequences of forms can be processed with minimal loss of throughput s...