Formatter-control system The formatter is involved in the following procedures. ● Controlling the Sleep Delay function ● Receiving and processing print data from the various product inputs ● Monitoring control-panel functions and relaying product status information (through the control panel and the bidirectional input/output) ● Developing and coordinating data placement and timing with the DC controller PCA ● Storing font information ● Communicating with the host computer through the bidirectional interface The formatter receives a print job from the bidirectional interface and separates it into image information and instructions that control the printing process.
The dc controller PCA synchronizes the image-formation system with the paper-input and -output systems, and then signals the formatter to send the print-image data. Sleep Delay When the product is in Sleep Delay , the control-panel backlight is turned off, but the product retains all product settings, downloaded fonts, and macros. The default setting is a 15-minute idle time. Sleep Delay can be turned off from the System Setup menu on the control panel. The product exits Sleep Delay and enters the warm-up cycle when any of the following occurs. ● A print job, valid data, or a PML or PJL command is received at the serial port. ● The control panel is touched.
● A document is loaded in the document feeder or the scanner lid is opened. ● A tray is opened. ● The engine-test button is pressed. TIP: Error messages override the Sleep Delay message. The product enters Sleep mode at the appropriate time, but the error message continues to appear. Input/output The following sections discuss the input and output features of the product. USB The product includes a universal serial bus (USB) 2.0 connection. 10/100 networking The product includes a 10/100 network connection. Fax The product includes a fax phone line connection. 4 Chapter 1 Theory of operation ENWW