EXP Computer C4077-90960 - Manual (Page 93)

Formatter System
The Formatter PCA is responsible for the following:
•
Controlling the PowerSave mode.
•
Receiving and processing print data from the various printer interfaces.
•
Monitoring Control Panel inputs and relaying printer status information
(through the Control Panel and the Bi-Directional I/O).
•
Developing and coordinating data placement and timing with the print engine.
•
Storing font information.
•
Communicating with the host computer through the Bi-Directional Interface.
The Formatter PCA receives a print job from the Bi-Tronics Interface and
separates it into image information and instructions which control the printing
process. The DC Controller synchronizes the Image Formation System with
the Paper Input and Output Systems, and then signals the Formatter to send
the print image data. The Formatter sends the print image data (dots) in the
form of a VIDEO signal to start the printing process.
The Formatter PCA also provides the electrical interface and mounting
locations for two MIO cards, additional memory SIMMs, the PostScript
SIMM, the Disk Accessory, and the External Paper Handling controller
PCA for the 2000-Sheet Input Unit, and the Multi-Bin Mailbox/Mailbox
With Stapler.
PowerSave
This user-adjustable feature (Configuration Menu) conserves power by
shutting down the fuser and exhaust fans after the printer has been idle for
15 minutes, 30 minutes, 1, 2, or 3 hours. A 10 second interval is also
available in Service Mode. The printer retains all printer settings,
downloaded fonts, and macros while in PowerSave mode. The default
setting is PowerSave ON, with a 1-hour idle time. (PowerSave can also be
turned OFF from the control panel.)
The printer exits PowerSave mode 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
parallel port or an MIO card.
•
A Control Panel key is pressed.
•
When any printer door (except the front access door) is opened and then
closed.
•
A paper tray is opened and then closed.
•
When the Engine Test microswitch is pressed.
5-8 Functional Overview