| Patent Number |
Title Of Patent |
Date Issued |
| 5339144 |
Recording paper separating device with constant current control |
August 16, 1994 |
| A recording paper separating device for use in a copying machine, the device including a transfer charger for transferring a toner image from a photosensitive member onto a recording paper by discharge effected by a charging wire accommodated in a shield casing, a bias-loaded recording |
| 5138618 |
Image forming apparatus with communication function |
August 11, 1992 |
| A system includes an image forming apparatus or copier, and a central controller for remotely determining a cause of malfunction of the copier. The copier includes a control unit including a self-diagnostic portion; a selection portion for setting the control unit to a self-diagnosis mod |
| 4990957 |
Automatic exposure device |
February 5, 1991 |
| An automatic exposure control device for use in a copying machine in which a light source for illuminating the light to an original document is controlled based on the signal representing the light amount of the original document sensed by a light senses. There are two kinds of HIGH |
