Connection checking system, printer device, method of checking connected state, connection checking program, and recording medium storing connection checking program
US7391334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Apr 15, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A connection checking system of the present invention is arranged so as to apply a power supply voltage which is dropped by the resistance to a terminal when the control substrate and the unit are connected. Then, the control section determines that the unit is connected to the control substrate when the dropped voltage is applied to the terminal. On the other hand, when a dropped voltage is not applied to the terminal, the control section determines that the unit is not connected to the control substrate. The connection checking system of the present invention can be realized by using a conventional power supply cable, a signal cable and a terminal, and thus the connection checking system of the present invention can be manufactured at low costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.