Development Mechanism - Ricoh MP 7503SP Field Service Manual

• Toner bottle shutter. The toner bottle shutter prevents toner from spilling when the toner bottle holder
is opened during toner bottle replacement.
• Toner bottle supply mechanism. A small toner bottle motor rotates the toner bottle.
• Toner separation. The toner separation mechanism separates paper dust and clumps from recycled
toner.

Development Mechanism

In order to improve the quality of images, the development unit employs a single development roller
sleeve, and a concentrated magnetic band inside the sleeve.
• The small diameter, pulverized toner is comprised of two components.
• The toner collected during cleaning can be recycled and used again, greatly reducing toner
consumption.
No.
1 Development Sleeve
Inside the Development Unit
The thickness of toner on the sleeve is controlled by the doctor blade. Excess toner flows to the back-spill
plate on top of the development unit. From there, the Toner Transport Coil distributes the toner evenly
from front to rear.
Name
Print Process (Main Engine Components)
1059