Recorders – Record receivers and/or driving means therefor – Web
Patent
1992-05-22
1995-08-01
Tran, Huan H.
Recorders
Record receivers and/or driving means therefor
Web
226 2, 226 10, 226 24, 226 27, 226 45, B41J 1504, B41J 1506
Patent
active
054383498
ABSTRACT:
An apparatus and method for sensing gaps between labels adhered to a backing material in longitudinally spaced-apart positions as the backing material travels along the print path of a thermal printer. An array of light-emitting diodes oriented transverse to the print path illuminates the backing material. A fiber optic detects the light transmitted through the backing material and passes the light to a photodiode. The photodiode produces an analog electrical signal indicative of the amount of light transmitted, which varies depending on whether the light has passed through only the backing material or through both the backing material and the print media it carries. The analog signal is converted to a digital signal which is processed by a microprocessor to monitor and control the advancement of the print media and backing material through the printer.
REFERENCES:
patent: 4699531 (1987-10-01), Ulinski, Sr. et al.
patent: 5061946 (1991-10-01), Helmbold et al.
patent: 5061947 (1991-10-01), Morrison et al.
patent: 5206662 (1993-04-01), Fox et al.
Fox Duane M.
Schoen Joel A.
Intermec Corporation
Tran Huan H.
LandOfFree
Thermal printer label gap sensor and method for controlling same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal printer label gap sensor and method for controlling same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal printer label gap sensor and method for controlling same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-736168