Engine controller PCB Power supply PCB Figure 5-3 High-voltage power supply circuit Image-formation system Laser printing requires the interaction of several different technologies including electronics, optics, and electrophotographics to provide a printed page. Each process functions independently and must be coordinated with the other device processes. Image formation consists of seven processes:
ENWW Device functions 51 IC902 CPU PRPWM J902-10 J201-14 High-voltage power supply circuit Primary charging bias circuit IC301 DC voltage generation circuit PR1 Combined IC301 IC301 AC voltage generation circuit Developing bias circuit DC voltage generation roller circuit DEV Combined IC301 AC voltage generation circuit Transfer charging bias circuit Positive voltage generation circuit TRS Negative voltage generation circuit IC501 Pri J304 chargi PRAC J902-9 J201-15 DEV Photos J303 dr DVAC J902-8 J201-16 Deve J301 cyl TRS Tra J302 chargi TRPDC J902-6 J201-18 TRNDC J902-7 J201-17 TRCRNT J902-2 J201-22