Brother International HL-3400CN Service Manual - Page 17

CHAPTER 1PRODUCT OUTLINE 3. INTERNAL STRUCTURE 4. Fusing Unit 2. OPC Belt Cartridge 3. Drum Cleaner 1. Toner Cartridge (K,Y,M,C) i i I 0 7. Paper Discharger 8. Transfer Roller 5. Transfer Unit 6. Transfer Drum v .1 10. Paper Pick-up Roller K OO OO M OO pec®OO 11. Laser Unit 9. Media Cassette Fig. 1-3 No. Components Name 1 Toner Cartridge 2 OPC Belt Cartridge 3 Drum Cleaner 4 Fusing Unit 5 Transfer unit 6 Transfer Drum 7 Paper Discharger 8 Transfer Roller 9 Media Cassette 10 Paper Pick-up Roller 11 Laser Unit Outline of Functions Contain the toner (K, Y, M, C) for developing. Each toner cartridge (K, Y, M, C) is independent. Forms images and includes the OPC belt. Cleans and collects waste toner adhering to the transfer drum. Fixes by heat and pressure the toner image onto the paper. Transfers toner images from the transfer drum to the paper. Forms color images, combining the toner images from the OPC belt on the drum. Emits a corona charge for separating the paper from the transfer drum. Transfers the toner image on the transfer drum to the paper. Feeds paper automatically. Feeds paper automatically from the media cassette. Generates a modulated laser beam and scans the OPC belt to produce the image. 1-8