Utax CLP 3521

2HL/2HM/2HN
2-2-2
15. PD PWB K ................................................... Controls horizontal synchronizing timing of laser beam. (black)
16. Drum PWB M ............................................... Relays wirings from electrical components on the drum unit M. Drum indi-
vidual information in EEPROM
*
storage.
17. Drum PWB C ............................................... Relays wirings from electrical components on the drum unit C. Drum indi-
vidual information in EEPROM
*
storage.
18. Drum PWB Y................................................ Relays wirings from electrical components on the drum unit Y. Drum indi-
vidual information in EEPROM
*
storage.
19. Drum PWB K................................................ Relays wirings from electrical components on the drum unit K. Drum indi-
vidual information in EEPROM
*
storage.
20. Zener PWB M .............................................. Adjusts the drum surface potential. (Magenta)
21. Zener PWB C............................................... Adjusts the drum surface potential. (Cyan)
22. Zener PWB Y ............................................... Adjusts the drum surface potential. (Yellow)
23. Zener PWB K ............................................... Adjusts the drum surface potential. (Black)
24. Developing PWB M...................................... Relays wirings from electrical components on the developing unit M.
25. Developing PWB C ...................................... Relays wirings from electrical components on the developing unit C.
26. Developing PWB Y ...................................... Relays wirings from electrical components on the developing unit Y.
27. Developing PWB K ...................................... Relays wirings from electrical components on the developing unit K.
*
: 21/23 ppm (500-sheet) model and 26/28 (500-sheet) model only