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Multifold Ink Jet Fog Collector

IP.com Disclosure Number: IPCOM000051521D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Salvadore, JM: AUTHOR [+2]

Abstract

Shown above in Fig. 2 is a multifold fog collector for an ink jet printer. The folds of the fog collector help to break up the boundary layer of air flow around the rotating print drum. With the boundary layer air flow broken, fog from ink droplets impacting on the drum are collected in the folds of the absorbent fog collector.

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Multifold Ink Jet Fog Collector

Shown above in Fig. 2 is a multifold fog collector for an ink jet printer. The folds of the fog collector help to break up the boundary layer of air flow around the rotating print drum. With the boundary layer air flow broken, fog from ink droplets impacting on the drum are collected in the folds of the absorbent fog collector.

Fig. 1 shows a stream of ink droplets directed towards a print drum 10 carrying the print sheet. As the droplets strike the paper, a fog or ink mist is created. The drum 10 is rotating and, thus, the boundary layer air flow associated with the drum 10 tends to drag the ink fog or mist to a fog collector
12. The fog collector 12 is typically an absorbent pad spaced one to two millimeters from the surface of the drum. The fog collector 12 collects most of the fog, but because of the boundary layer air flow, a great deal of fog or mist is carried around the drum to contaminate other printer hardware 14. The fog collector 12 could be extended around to the other printer hardware; however, the boundary layer air flow would still carry a significant percentage of the mist around to contaminate the hardware.

Fig. 2 shows a multifold fog collector 16 mounted just past the impact point of the droplet stream on the surface of the drum 10. Again, the fog collector is mounted about one to two millimeters from the surface of the drum 10. The folds of the fog collector provide an irregular surface that tends to break up t...