Ink sensing system for vector plotters

Details Ink sensing system for vector plotters Ink sensing system for vector plotters

1992-02-14

1994-03-29

Richardson, Robert L.

Recorders

Record receiver deforming

346 75, 346 11, 346139R, 346140R, 101DIG46, 101492, G06F 306

Patent

active

052992900

ABSTRACT:
An ink sensing system for a vector plotter in which a pen is adapted to be raised and lowered from a drawing media surface along a system axis. An optical detection system is provided which has a focal point on the system axis and below the media surface when the pen is in its lowered position and at the media surface when the pen is in its raised position. The optical detection system includes a source of illumination and a detector system to determine the degree of reflectance from the media surface to indicate the presence or absence of ink on the media surface. In a particular embodiment the optical detection system is moveable and the movement of the optical detection system is coupled to the movement of the pen. Furthermore, the focal point of the optical detection system coincides substantially with the last point of contact of the pen with the media surface when the pen is in the raised position.

REFERENCES:
patent: 4255754 (1981-03-01), Crean et al.
patent: 4328504 (1982-05-01), Weber et al.
patent: 4435674 (1984-03-01), Hevenor et al.
patent: 4751517 (1988-06-01), Crean et al.

Affiliated with

Also associated with

Rating

Ink sensing system for vector plotters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ink sensing system for vector plotters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink sensing system for vector plotters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-799242