Abstract
Brother Industries uses cleanerless system with nonmagnetic single component toner for monochrome laser printer products. The cleanerless system is useful for downsizing process cartridge because it does not need much space around post-transfer process. In monochrome laser printer HL2040, we tried space saving by using the cleanerless system and downsizing of many parts in all area of the machine. However, this cleanerless system needed stabilization of high toner transfer efficiency in all environmental conditions and to solve image quality issue that comes from paper dust adherence on photoconductor surface. This paper introduces some contraptions for downsizing of the machine and countermeasures to make possible the cleanerless system in small monochrome laser printer.
