Reciprocating-element position encoder

Details Reciprocating-element position encoder Reciprocating-element position encoder

1989-10-10

1992-05-26

Lall, Parshotam S.

Boots, shoes, and leggings

364560, 346 75, G06F 1520

Patent

active

051173743

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: 4009332 (1977-02-01), Van Hook
patent: 4179223 (1979-12-01), Kwan et al.
patent: 4190845 (1980-02-01), Cooper et al.
patent: 4198642 (1980-04-01), Gamblin
patent: 4212553 (1980-07-01), Acosta et al.
patent: 4272771 (1981-06-01), Furukawa
patent: 4520368 (1985-05-01), Ims
patent: 4622560 (1986-11-01), Withoos et al.
patent: 4686540 (1987-08-01), Leslie et al.
patent: 4775254 (1988-10-01), Nakao et al.
patent: 4905015 (1990-02-01), Sieber et al.
patent: 4920355 (1990-04-01), Katerburg
patent: 4974164 (1990-11-01), Lewis et al.
patent: 4978971 (1990-12-01), Goetz et al.

Affiliated with

Also associated with

Rating

Reciprocating-element position encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reciprocating-element position encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocating-element position encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-424719