Device for driving inkjet print head

Details Device for driving inkjet print head Device for driving inkjet print head

1998-03-05

2000-06-13

Royer, William

Incremental printing of symbolic information

Ink jet

Controller

B41J 2938

Patent

active

060740337

ABSTRACT:
To prevent a deficiency of ink supply in a high drive frequency inkjet head operating at low ambient temperatures, and to reduce temperature dependent ink squirting variations, an inkjet head is driven at an ink jetting cycle that compensates for temperature. In particular, the ink jetting cycle of a drive waveform includes a period (t1) of constriction of the pressure generation chamber, a period (t2) of holding the drive voltage, and a process (t3) of expansion of the pressure generation chamber. With a decrease in the ambient temperature of ink, the sum of the periods t1, t2, and t3 is changed from a time period which is (n+1 / 4) (where n=1, 2, 3) times as much as the cycle of inherent oscillation T of the pressure generation chamber to a time period which is (n+3 / 4) times as much as T or to a time period which is (n-1 / 4) times as much as T. As a result, a low ambient temperature ink supply deficiency can be prevented without the use of an ink heater or the like.

REFERENCES:
patent: 4980699 (1990-12-01), Tanabe et al.
patent: 5631675 (1997-05-01), Futagawa
Patent Abstracts of Japan, vol. 004, No. 057 (M-009), Apr. 26, 1980 & JP 55 022972.
Patent Abstracts of Japan, vol. 016, No. 270 (M-1266), Jun. 17, 1992 & JP 04 065245.
Patent Abstracts of Japan, vol. 011, No. 090 (M-573), Mar. 20, 1987 & JP 61 242850 A.

Affiliated with

Also associated with

Rating

Device for driving inkjet print head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for driving inkjet print head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for driving inkjet print head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2062973