Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1989-11-06
1990-12-18
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 33R, 346140R, 364519, 400121, B41J 201
Patent
active
049789716
ABSTRACT:
Print heads are formed with spaced subheads having nozzles such that all of the lines or pixel rows on a print medium such as a sheet of paper are printed by scanning of the print head along the face of the sheet. The head structures include three subheads, each having nozzles for printing one or more adjacent lines with the subheads being spaced the same number of lines apart as the number of lines each prints; and three subheads spaced the equivalent of seven lines apart, each subhead having three nozzles spaced at the equivalent of alternate lines. The heads are advanced between scans by an equivalent number of lines generally equal to the number of nozzles in the head, whereby all print lines are addressed only once. Apparatus for printing includes the use of pointers in registers to keep track of head structure and location on a print medium for calculating print addresses. A partial page memory is used which wraps around to the beginning from the end. A positive printer carriage position encoder uses an index marker located in the middle of a strip of incremental markers. Sensing of the index marker resets an up/down counter with a value that gives a positive value for all count conditions.
REFERENCES:
patent: Re30743 (1981-09-01), Shelley et al.
patent: 4069485 (1978-01-01), Martin
patent: 4084195 (1978-04-01), Pereira
patent: 4112469 (1978-09-01), Paranjpe et al.
patent: 4131898 (1978-12-01), Gamblin
patent: 4232324 (1980-11-01), Tsao
patent: 4272771 (1981-06-01), Furukawa
patent: 4401991 (1983-08-01), Martin
patent: 4593295 (1986-06-01), Matsufuji et al.
patent: 4630076 (1986-12-01), Yoshimura
patent: 4737041 (1988-04-01), Nakayama
Goetz Howard V.
Springer Richard A.
Anderson Edward B.
Hartary Joseph W.
Tektronix Inc.
Winkelman John D.
LandOfFree
Method and apparatus for reformatting print data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reformatting print data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reformatting print data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1428485