|5638159||Developing unit for an image forming apparatus and method of collecting bicomponent developer therefrom|
A developing unit using a bicomponent developer and capable of collecting only carrier included in the developer and deteriorated due to aging while recycling toner, and a method of collecting the developer from the developing unit. The developing unit se...
|5442430||Color image forming apparatus and cleaning device therefor|
A color image forming apparatus and a cleaning device therefor are disclosed. Toner of different colors left on a photoconductive element image transfer are sequentially collected by respective cleaning units. A recycling mechanism, including conveyor scr...
|4284722||Heat and acid-stable alpha-amylase enzymes and processes for producing the same|
Heat and acid-stable alpha-amylase enzymes having the following characteristics: (1) capable of retaining at least about 70% of their initial activity when held at 90° C. and at a pH of 6.0 for 10 minutes in the absence of calcium ion; (2) capable of ret...