Multi-function monitoring module for a printer

Details Multi-function monitoring module for a printer Multi-function monitoring module for a printer

2005-09-27

2005-09-27

Meler, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

06948793

ABSTRACT:
In a module for monitoring the print quality of a dot printer (10), comprising a radiation source (41), a condenser lens system (43′) for forming an illuminated area (45) on a printing medium (13) and an imaging lens system (87,89) for imaging the illuminated area on a detector (49′), the detector comprises at least a linear array of detector elements and the imaging system is configured in such a way that both the illuminated area and a small portion thereof can be imaged. This allows detection of both the gray scale of a print line (35) and the size and colour of an individual dot. A dot printer provided with this modules gives an improved print quality.

REFERENCES:
patent: 6378976 (2002-04-01), Byers et al.

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