HP 3100, 3150 manual Image formation system, Toner cartridge

Image formation system

Laser printing requires the interaction of several different technologies (such as electronics, optics, and electrophotographics) to provide a printed page. Each process functions independently and must be coordinated with the other printer processes. Image formation consists of six processes:

●Step 1. Primary charging

●Step 2. Scanning exposure

●Step 3. Developing

●Step 4. Transferring

●Step 5. Separating

●Step 6. Drum cleaning

Figure 11. Image formation block diagram

Toner cartridge

As the heart of the image formation system, the toner cartridge houses the cleaning, conditioning, and developing steps of the process. The toner cartridge contains the photosensitive primary charging roller, developing station, toner cavity, and cleaning station. Including these components (which wear, degrade, or are consumed) in the replaceable toner cartridge eliminates the need for a service call when replacement is required. The special photosensitive properties of the drum allow an image to be formed on the drum surface and then transferred to paper.

74 Functional overview EN