Abstract: The invention provides a keypad comprising at least consonant keys and vowel keys such that the vowel keys are arranged in a column between two edge columns of consonant keys, or in a row between two edge rows of consonant keys, wherein the consonant keys other than Z follow an alphabetic progression.

Abstract: The invention provides a keypad comprising at least consonant keys and vowel keys such that the vowel keys are arranged in a column between two edge columns of consonant keys, or in a row between two edge rows of consonant keys, wherein the consonant keys other than Z follow an alphabetic progression.

Abstract: An electrolytic system for continuously treating raw surface water sources and disinfecting them for Cryptosporidium to produce water of a drinkable quality for humans includes a source of raw water, a series of electrolytic cells, input and output structure coupled to the series of electrolytic cells. The system generates sufficient voltage potential at the anode to attract and damage the outer shell of the C. parvum oocyst, and also generates oxygen and hypochlorite to disinfect the raw water by secondary oxidation. The system may also include programmable-logic-controller structure and feedback probe structure to enable the system to self-regulate. The system may be constructed to be stand-alone, or as a subsystem of a municipal water-treatment plant that serves <10,000 people.

Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.

Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.

Abstract: Apparatus for removing and controlling microbial contamination in dental unit water includes a source of water and an electrolytic subsystem located between the source and a dental unit that continuously treats all the water from the source before the water enters the dental unit. The subsystem does not segregate the anolyte from the catholyte, does not require a separate source of salt or brine, and generates hypochlorite and other active halide compounds from salt naturally present in the water. The subsystem may be formed as an electrolytic cell that can be located in-line between the source of water and the dental unit.

Abstract: Apparatus and methods reduce, and preferably prevent, contamination of a surface or component to be charged or acted upon by a corona generating device. When a voltage is applied to the corona generating device, corona winds having a plurality of corona vortices are formed. Air is pulled via at least one drawing port of the corona generating device. At least one substantially continuous air curtain is formed along a side of the corona generating device when air is pulled via the drawing port of the corona generating device. The formation of the continuous air curtain is not dependent on air being pushed into the corona generating device. Preferably the substantially continuous air curtain extends from substantially one end of the corona generating device, at least a distance equivalent to a greatest continuous total length of the plurality of corona vortices and any portion of the corona generating device situated therebetween.

Abstract: A method for removing a residue, such as lateral charge migration (LCM) film, from an imaging member includes contacting at least a portion of the imaging member with a wash liquid capable of removing the residue. The wash liquid containing the residue is then removed, for example, by applying an absorbent material such as a toner, to the contacted portion of the imaging member.

Abstract: An electrolytic system for continuously treating raw surface water sources and disinfecting them for Cryptosporidium to produce water of a drinkable quality for humans includes a source of raw water, a series of electrolytic cells, input and output structure coupled to the series of electrolytic cells. The system generates sufficient voltage potential at the anode to attract and damage the outer shell of the C. parvum oocyst, and also generates oxygen and hypochlorite to disinfect the raw water by secondary oxidation. The system may also include programmable-logic-controller structure and feedback probe strcuture to enable the system to self-regulate. The system may be constructed to be stand-alone, or as a subsystem of a municipal water-treatment plant that serves <10,000 people.