Abstract: A developing device for use in an image recording apparatus, comprising: a developer stirrer which stirs toner and carrier in order to prepare the compostion of developer; a developer supplier which supplies the developer prepared by the developer stirrer; a developer holder which attracts the developer supplied by the developer supplier onto its surface, conveys the developer to the development region; a height regulator which regulates the layer thickness of the developer attracted onto the surface of the developer holder; a developer remover which removes the residual developer from the surface of the developer holder after development; a magnetic conveyor which conveys the developer removed from the developer holder to the region of the developer stirrer; and a mechanical conveyor which is placed in the region between the magnetic conveyor and the developer stirrer, which removes the developer attracted onto the surface of the magnetic conveyor, and moves the removed developer toward the region between th

Abstract: A gap produced between a sheet intruding guide and a surface of a drum is kept to a predetermined value with an allowable tolerance by positioning the sheet intruding guide together with an image transcription unit placed under the drum and constantly pushed toward the drum surface so that a space between the drum surface and the image transcription unit is kept constant. The sheet intruding guide can be lifted up and held away from the image transcription unit when the drum is removed upward, and released from the holding and set back to its regular position mechanically when the drum is lowered back to its regular position.