Note The Copy Processor is a replaceable unit. Functions G Controls the Front Panel display G Monitors touch screen inputs G Controls communication from the copier engine (no unsolicited data flows from the copier engine) G Performs image processing (grayscale to dithered black and white) G Initiates and controls communication to the printer • The interface is IEEE 1394 based, 200 MB per second total bus speed. • Copy module firmware is downloaded from the printer’s hard disk to the Copy Processor. • The user inputs settings through the touch screen Front Panel to the Copy Processor to the printer. • The printer sends status responses to the Copy Processor.
• printer control commands go from the Copy Processor to the printer. • Image data is sent to the printer, essentially printer ready strip buffer data. Key Components G 2 PM44s [Image processing Digital Signal Processor (DSP)] G 1 16-bit Motorola 68306 micro-controller G 1 boot ROM, which provides code to start 1394 communication and begin to download the operating system G 1 1394 interface and connector G 1 DRAM C4265-90907 Copy Module Functional Overview 241