Olivetti d-Copia 6500MF Plus Service Manual page 762

1. Main PWB (MPWB) .............................. Controls the software such as the print data processing and
2. Engine PWB (EPWB)............................ Controls printer hardware such as high voltage/bias output con-
3. Power source PWB (PSPWB) .............. After full-wave rectification of AC power source input, switching
4. High voltage PWB (HVPWB) ................ Generates main charging, developer bias, transfer bias and sepa-
5. ISC PWB (ISCPWB) ............................. Controls the scanner section.
6. CCD PWB (CCDPWB).......................... Reads the image of originals.
7. LED lamp PWB (LLPWB) ..................... Exposes originals.
8. Front PWB (FRPWB) ............................ Consists of wiring relay circuit between engine PWB and drum
9. Feed PWB 1 (FPWB1).......................... Consists of wiring relay circuit between engine PWB and drive
10. Feed PWB 2 (FPWB2).......................... Consists of wiring relay circuit between engine PWB and paper
11. Relay PWB (RPWB) ............................. Consists of wiring relay circuit between feed PWB 1 and paper
12. LSU relay PWB (LSURPWB)................ Consists of wiring relay circuit between engine PWB and laser
13. APC PWB (APCPWB) .......................... Generates and controls the laser beam.
14. PD PWB (PDPWB) ............................... Controls horizontal synchronizing timing of laser beam.
15. Drum PWB(DRPWB) ............................ Drum individual information in EEPROM storage.
16. Fuser IH PWB (FIHPWB)...................... Controls the fuser IH and fuser heater.
17. Eject PWB (EJPWB) ............................. Consists of wiring relay circuit between front PWB and fuser IH
Service Manual
Figure 2-2-2 PWBs (operation section)
provides the interface with computers.
trol, paper conveying system control, and fuser temperature con-
trol, etc.
for converting to 24 V DC and 12 V DC for output.
ration bias.
units, developer units, eject unit.
section, relay PWB.
conveying section, drive section.
conveying unit.
scanner unit.
section.
2-2-2
27
25
26
Machine front
Machine inside
Machine rear
2N8/2N7
Y116520-3