HP (Hewlett-Packard) 4000 Series, 4050 Series Printer User Manual


 
Formatter System 5-19
Random Access Memory (RAM)
The RAM contains the page and I/O buffers and the font storage area.
It stores printing and font information received from the host system,
and can also serve to temporarily store a full page of print image data
before the data is sent to the print engine (see “Page Protect” below).
RAM memory capacities for each printer are shown in “Printer
Features” on page 1-2. Memory capacity can be increased by adding
DIMMs to the Formatter PCA. Note that adding memory (DIMMs)
may also increase the print speed of complex graphics.
DIMM Slots
The DIMM slots may be used to add memory, fonts, or firmware
upgrades. Note that DIMMs and SIMMS are not compatible.
Non-Volatile Memory (NVRAM)
The printer uses NVRAM to store I/O and information on the print
environment’s configuration. The contents of NVRAM are retained
when the printer is turned off or disconnected.
Memory Enhancement technology (MEt)
The Hewlett-Packard Memory Enhancement technology (MEt)
effectively doubles the standard memory through a variety of font and
data compression methods.
Note MEt is only available in PCL mode; it is not functional when printing in
PS mode.