Thermal printing head and method of fabricating the same

Details Thermal printing head and method of fabricating the same Thermal printing head and method of fabricating the same

B - Operations, Transporting

41

J

26/200, 101/43

B41J 2/335 (2006.01)

Patent

CA 1225274

ABSTRACT It has been found that the origin of crack(s) in the Ta2O5 anti-abrasion layer of a thermal printing head results from the crystallization of Ta2O5 in the layer, and that the crystallization can be suppressed by an addition of SiO2 to the layer. Thus, the anti-abrasion layer is kept from the crack(s) even under the high speed printing conditions using pulse width of 1 ms or less, and also under high colour density printing requiring input power density like 50 mj/mm2. Also, the thermal wearing life of the printing head can be extended to more than 10 folds of a conventional thermal printing head employing pure Ta2O5 anti-abrasion layer. The thermal printing head is subject to an appropriate annealing to stabilize the resistivity of the heat elements. The anti-abrasion layer is provided in a uniform mixture of Ta2O5 and SiO2 throughout the layer by sputtering a target composed of a mixture containing tantalum and silicon ingredients.

449761

Affiliated with

Also associated with

Rating

Thermal printing head and method of fabricating the 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 printing head and method of fabricating the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal printing head and method of fabricating the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1169357