EN-77 Unit Record Printer
Abstract
The task covered by this report was to redesign and rework the unit record printer to give it substantially increased capability in the areas of mensuration and auxiliary data recording and to make it more reliable and more convenient in operation. Section 1 of the report describes the final configuration of the reworked printer, illustrates all the major components and controls, and describes its capabilities. Section 2 presents the theory of operation of the printer as a whole and of each major functional subsystem and describes the automatically controlled sequence of operation in the printing cycle with each function referenced to the detailed logic diagram bound in Appendix B of the report. Section 3 discusses the changes that are required by contract to bring the printer to its new configuration and describes the methods proposed to achieve the performance goals. Section 4 describes the progress of the development, the problems that were uncovered, and the solutions that were incorporated in the final configuration. Appendix A is a research report on initial studies of approaches to the problem of recording the machine and human-readable codes on the output film. Appendix B contains all the schematic diagrams of the printer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0813516
Entities
People
- Clyde Lefevre