Typewriting machines – Including selection of type-face by... – Including error detection
Patent
1998-05-27
2000-10-03
Hilten, John S.
Typewriting machines
Including selection of type-face by...
Including error detection
400 76, 400 70, 400 61, B41J 342
Patent
active
061263419
ABSTRACT:
A serial recording apparatus is disclosed which is capable of continuously printing even if a dot-forming element (or elements) of the element array of the recording head is defective, by substituting for the defective dot-forming element, a substitution dot-forming element. The serial recording apparatus also automatically detects a defective dot-forming element of the element array of the recording head. In operation, print data of the defective dot-forming element, which loses its dot-forming function, is saved in a second print-data storing device, and a first printing pass is carried out. In the second printing pass, a normal dot-forming element is moved to a location on a recording sheet which would otherwise be subjected to printing by the defective dot-forming element, and reads out the print data from the second print-data storing device to print it on that location.
REFERENCES:
patent: 5124720 (1992-06-01), Schantz
patent: 5781202 (1998-07-01), Silverbrook
patent: 5859652 (1999-01-01), Silverbrook
Patent Abstracts of Japan vol. 012, No. 045 (M-667) 2/10/88 & JP 62 198471 A (Mitsubishi Electric Corporation) Sep. 2, 1987 *Abstract.
Patent Abstracts of Japan vol. 012, No. 289 (M-728) 8/8/88 & JP 63 067164 A (Mitsubishi Electric Corporation) Mar. 25, 1988 *Abstract.
Patent Abstracts of Japan vol. 016, No. 051 (M-1209) Feb. 10, 1992 & JP 03 253351 A (Brother Ind Ltd) Nov. 12, 1991 *Abstract.
Koike Kiyofumi
Tanaka Minoru
Hilten John S.
Nolan, Jr. Charles H.
Seiko Epson Corporation
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