Process for the production of information relative to the type of a printing head
US5033887A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jul 14, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Described is a process for producing information relative to the type of a printer head (18) present in a printer, which head contains at least one printer element (86, 88, 90). The servo component of the printing element (86, 88, 90) has an electrical resistance, which is determined via an electrical evaulation circuit. This resistance is assigned to one of several resistance ranges representing various types of printing head. Depending upon this completed assignment, the evaluation circuit produces a type signal (40a, 40b, 40c) as information. The type signal (40a, 40b, 40c) is made available to a subsequent control, whic can then supply the various types of printing heads (17, 18) with specifically suitable control signals. The invention can be used with practically all types of printing heads, whose printing elements are actuated by electrical or electromechanical servo components and therefore have an electrical resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.