Print Cartridge (AIO) 
 
SM  7-25  M0C3/M0C4/M0C5/M0C6/M0C7 
Descriptions 
Toner Supply and Development 
 
No.  Item 
1.  Scraper 
2.  Toner tank 
3.  Agitator 
4. 
Toner detection feeler  
5.  Toner supply roller 
6.  Drum 
7.  Development roller 
   
Toner Supply: 
The agitator mixes toner and sends it to the toner supply roller and development roller. 
 
 
Toner End: 
The toner detection feeler [4] detects toner end. The toner end sensor is on the outside of the 
development unit. 
 
 
Development Unit: 
This machine uses a one-roller development system. The high voltage supply applies 
approximately -300V to the development roller. 
This machine does not use a TD sensor or ID sensor to control toner density. The scraper 
controls the toner density.