Ricoh Be-C2, Technical Training Manual

Page: 101 / 282

Important points about the major units are as follows:
1. Image Writing Unit: Uses an LPH (LED Print Head) capable of 32-level
gradation to write 2-bit image data.
2. Scanner Unit: Uses a CIS for 256-level scanning.
3. Cleaning Unit: The drum is cleaned with a counter blade.
4. Fusing Unit: Fusing is done using a hot roller containing two halogen
lamps. For the paper type/size selected by the user, the machine chooses
the most suitable fusing temperature and nip width.
5. OPC Drum, Around the Drum: The units around the OPC drum do the
charging, image writing, development, image transfer, paper separation,
cleaning, and quenching.
6. Roll Trays (2nd Tray optional): Paper is supplied from continuous rolls.
7. By-pass Tray: The by-pass tray can be used to feed individual sheets of
copy paper.
8. Development Unit: Toner is attracted from a single magnetic roller to the
areas of low charge on the OPC drum. The ID sensor below the drum on the
edge of the idle registration panel controls the toner concentration.
The rollers, sensors, and other smaller components will be described in their
appropriate sections.
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