Copy Module Power Up Process Copy Processor Board There are 4 main stages of the power-up process of the Copy Processor. Each of the four stages are represented by an icon displayed on the Digital Copier's front panel. If a Digital Copier does not successfully boot up, the icons displayed will assist the field technician in diagnosing the failure. While first power-up icon is displayed: 1 The 16-bit Motorola 68306 microprocessor boots itself from the ROM. 2 The Copy Processor performs minimum checks (Level-1 checks) on ROM. 3 The Copy Processor polls the keypad for initial key status (to determine whether to start up in Service Mode). 4 The Copy Processor begins performing self-checks.
(During Level II checks on the Copy Processor, the user can let go of any keys held down. This is a short phase with no animation.) While second power-up icon is displayed: 5 The connection to the printer starts over the IEEE 1394 interface and looks for the printer. This stage may take more time if the printer is not powered on and ready. If the printer is not available, the Copy Processor continuously monitors the bus to find one. Therefore, the power-on order between the printer and the Copy Module does not matter. While third power-up icon is displayed: 6 The unit begins download of the Copy Module Firmware (CMF) from the printer's hard disk to the Copy Processor's DRAM.
This may take up to two minutes, although 60-70 seconds is most typical. The hourglass icon is animated during this time and a progress bar is displayed. 242 Chapter 5 Functional Overview C4265-90907