Incremental printing of symbolic information – Thermal marking apparatus or processes – Record receiver driving means
Patent
1992-07-07
1995-08-01
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Record receiver driving means
2502222, 250223R, 346134, 346136, B41J 2325
Patent
active
054383455
ABSTRACT:
An image forming apparatus for forming an image on a recording medium includes a first sensor for detecting a supply of the recording medium, a second sensor for detecting the type of the recording medium and a third sensor for detecting the size of the recording medium. The image forming apparatus of the present invention automatically determines threshold values of first, second and third sensors by feeding the recording medium so as to adjust output levels of first, second and third sensors. The image forming apparatus may thereby print the image on the recording medium in accordance with the size and the type of the recording medium detected by the second and third sensors when the first sensor detects the supply of the recording medium.
REFERENCES:
patent: 4975715 (1990-12-01), Saito et al.
Kabushiki Kaisha Toshiba
Tran Huan H.
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