Trim bar gap verification tool and method using a flexible capacitor sensor having a magnetic metallic laminate
US5155444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Aug 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring the gap between a roller and an adjacent member in an electrophotographic printing machine is disclosed wherein a flexible sensor is provided and passed into the developer sump area in the printing machine. The flexible sensor is passed between the roller and adjacent member for measuring the distance therebetween. The flexible sensor is comprised of a capacitance sensor and a metal laminate. As the sensor is passed between the roller and adjacent member, the sensor is magnetically attracted to the roller and conforms to the circumference of the roller. The adjacent member can be a trim bar within the developer sump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.