Microfilm printer apparatus and method
US4746956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/223
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microfilm strip includes image frames arranged in chapters with indicia provided identifying those image frames which head the chapters. When it is desired to produce multiple prints of each of the image frames in a chapter the image frame comprising the first frame or head of the chapter is moved into the print gate. Upon entry of the print command signal, the strip is automatically advanced so that the last frame of the chapter is in the print gate. The printer then automatically prints each frame of the chapter starting with the last frame and ending with the first frame of the chapter. The prints arrive face-up at the output of the printer in collated form. As multiple sets of prints of the chapter are desired, the microfilm after printing the first image frame, returns to the last image frame for repeat printing of another set of prints of the chapter. This operation is repeated until the number of sets of collated prints is provided at the output. Provision is also made for automatically printing of collated sets of portions of a chapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.