Ipu (Image Processing Unit) - Ricoh B286 Service Manual

IPU (Image Processing Unit)

The IPU (Image Processing Unit) holds the ASIC and memory for image processing. It
processes image data from the CIS (Contact Image Sensors), sends it to the VDB (Video
Drive Board), and then sends it to the LPH (LED Print Heads). The IPU also controls the
HDD unit and the printer board, and the printer/scanner interface functions.
! The IPU DIP switches must always be OFF (default) and they must not be
changed in the field.
6.11.4 PSU
The PSU (Power Supply Unit) supplies dc for all electrical components in the machine, and
controls ac input to the fusing lamps and anti-condensation lamps.
SM 6-101
Electrical Components
B286/B289