[惠普] HP惠普彩色多功能激光打印机CM4540维修手册故障排错拆装图解手册

The product routes all high-level processes through the formatter, which stores font information,processes the print image, and communicates with the host computer.
The basic product operation comprises the following systems:
● The engine-control system, which includes the power supply and the DC controller printed circuit assembly (PCA)
● The laser/scanner system, which forms the latent image on the photosensitive drum
● The image-formation system, which transfers a toner image onto the paper
● The media feed system, which uses a system of rollers and belts to transport the paper through theproduct
● Option (optional paper feeder)
Figure 1-1 Relationship between the main product systems