Image scanner and image forming apparatus with an interface for connection with an external computer

摘要

An image scanner is occasionally used with an external host computer and includes an optical system and a CCD image sensor for reading an image of a document placed on a document platform. The image scanner further includes a small computer system interface (SCSI) for connecting the image scanner to the external host apparatus, and a CPU, a nonvolatile memory, an SCSI controller etc. for emulating a file system contained in the external host computer.