HP Memory Enhancement technology
The HP Memory Enhancement technology (MEt) effectively doubles the standard memory through a
variety of font- and data-compression methods.
NOTE: The MEt is available only in PCL mode; it is not functional when printing in PS mode.
CPU
The formatter incorporates a 540 MHz processor.
PJL overview
The printer job language (PJL) is an integral part of configuration, in addition to the standard product
command language (PCL). With standard cabling, the product can use PJL to perform a variety of
functions, such as these:
●
Two-way communication with the host computer through a network connection or a USB device
port. The product can inform the host about the control-panel settings, and the control-panel
settings can be changed from the host.
●
Dynamic I/O switching. The product uses this switching to be configured with a host on each I/O.
The product can receive data from more than one I/O simultaneously, until the I/O buffer is full.
This can occur even when the product is offline.
●
Context-sensitive switching. The product can automatically recognize the personality (PS or PCL) of
each job and configure itself to serve that personality.
●
Isolation of print environment settings from one print job to the next. For example, if a print job is
sent to the product in landscape mode, the subsequent print jobs print in landscape only if they
are formatted for landscape printing.
PML
The printer management language (PML) allows remote configuration and status readback through the
I/O ports.
Control panel
The formatter sends and receives product status and command data to and from a control-panel PCA.
Scanner interface
The formatter receives data from the scanner to produce copies and to send scanned data in e-mail
format.
6 Chapter 1 Theory of operation ENWW
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