Service manual

AR-203E/5420/M200/M201 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 7
6. PWB unit
1
5
2
11
8
6
3
7
4
10
9
No. Name Function
1 Exposure lamp invertor PWB Exposure lamp (CCFL) control
2 Main PWB (MCU) Copier control
3 Operation PWB Operation input/display
4 High voltage PWB High voltage control
5 CCD sensor PWB For image scanning
6 LSU motor PWB For polygon motor drive
7 TCS PWB For toner sensor control
8 LSU PWB For laser control
9 FAX-operation PWB FAX operation input (AR-FX13 option)
10 Power PWB AC power input, DC voltage control
11 Modem PWB FAX control (AR-FX13 option)