Formatter system The formatter system is responsible for the following: receiving and processing data from the various printer interfaces monitoring control panel input and relaying printer status information (through the control panel and the I/O) developing and coordinating data placement and timing with the print engine storing font information and macros communicating with the host computer The formatter receives data from the I/O and converts it into a dot image. The formatter then sends a print signal to the engine controller assembly.
The engine controller assembly synchronizes the image-formation system with the paper-feed system, and signals the formatter to send the print- image data. The formatter sends the print-image data (dots) in the form of a video signal and the printing process begins. Engine control system Laser/scanner system Engine controller PCB Image formation system Power supply PCB Formatter system Paper pickup/ feed system Figure 36. Formatter system 74 Chapter 5 Theory of operation C7058-90936