Formatter System The Formatter PCA is responsible for the following: G Controlling the PowerSave mode. G Receiving and processing print data from the various printer interfaces. G Monitoring Control Panel inputs and relaying printer status information (through the Control Panel and the bidirectional I/O). G Developing and coordinating data placement and timing with the print engine. G Storing font information. G Communicating with the host computer through the bidirectional Interface. The Formatter PCA receives a print job from the bidirectional parallel port (IEEE 1284) 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 three EIO cards, additional memory DIMMs, the Disk Accessory, the 8-bin Mailbox/5-bin Mailbox with Stapler, the 7-bin Tabletop Mailbox, and the 2 x 500-sheet Input Tray (Trays 4 and 5). PowerSave This user-adjustable feature conserves power by shutting down the fuser and exhaust fans after the printer has been idle for a specified time.
The default for PowerSave is “ON” and can be turned off from the control panel (Configuration Menu for the HP LaserJet 8100 Series and in the Resets Menu for the HP LaserJet 8150 Series). The default time setting for the HP LaserJet 8100 Series is 1 hour, and it is 30 minutes for the HP LaserJet 8150 Series. The printer retains all printer settings, downloaded fonts, and macros while in PowerSave mode. 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 EIO card. C4265-90907 Formatter System 185