Card-operated copying machine
US4501485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Apr 19, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00101
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A card-operated copying machine allows copying operation in response to insertion of one, at a time, of key checking cards for supervising copy counts for a plurality of sections. The card-operated copying machine includes (a) key checking cards assigned respectively to the sections, (b) a processor for issuing a signal capable of copying operation, the processor having a random-access memory for storing total copy counts respectively for the sections with flags indicative of permission and inhibition of copying operation, (c) a copy count display for reading the data stored in the random-access memory and displaying the total copy count for each section, and (d) an inhibition card recording thereon information for setting the flags to an inhibition state. The copying operation is permitted and inhibited in response to the flag conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.