Td (Mu) Sensor - Ricoh MP C3004 Field Service Manual

7. Detailed Descriptions
For MP C3004/C3504, only CMY of PCDU
This device uses a double-coil agitation system (twin-shaft environment development system).
Toner transported from the toner cartridge to the development unit will be agitated with the
developer by two toner transport coils [A] and will be delivered to the development roller.
The amount of developer adhering to the development roller is controlled by a doctor blade [B],
and supplies toner to the surface of the photoconductor unit.

TD (Mu) Sensor

In the TD sensor (also called the
information, the running distance information of Development unit and PCU, and other information used
by image density control.
ID chip
PCDU replacement information and toner density information are stored.
In the ID chip, the following data is stored.
• Model series ID
• New PCDU information
• Color information
• Developer replacement information
• PCU replacement information
• TD sensor serial no., date of manufacture
1240
sensor), there is an ID chip storing the machine identification