Incremental printing of symbolic information – Ink jet – Controller
Patent
1993-07-21
1995-06-27
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Controller
B41J 201
Patent
active
054283787
ABSTRACT:
An ink jet recording device having a capability of detecting the life of an ink jet recording head. The ink jet recording device includes a size sensor for generating a paper size signal relating to a size of a printing paper; a detecting device for detecting the number of print scans of the recording head; a converting device for counting the number of print scans detected by the detecting device without correction when the size of the printing paper is a predetermined paper size and for converting the number of print scans detected by the detecting device into the number of print scans corresponding to the predetermined paper size to count the converted number of print scans when the size of the printing paper is any size other than the predetermined paper size; an accumulating device for accumulating the number of print scans counted by the converting device; and a memory for storing the number of print scans accumulated by the accumulating device. The ink jet recording device further includes an informing device for informing the number of print scans accumulated by the accumulating device. Accordingly, the expiration of the life of the recording head can be easily and reliably predicted.
REFERENCES:
patent: 5049898 (1991-09-01), Arthur et al.
patent: 5068806 (1991-11-01), Gatten
patent: 5071273 (1991-12-01), Kato
patent: 5124727 (1992-06-01), Yamazaki
Furuya Masami
Fuse Takeshi
Koyama Toshio
Murata Yuji
Fuji 'Xerox Co., Ltd.
Fuller Benjamin R.
Le N.
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