Formatter-control system
The formatter is involved in the following procedures.
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Controlling the Sleep Delay function
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Receiving and processing print data from the various product inputs
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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
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