Scalable Font Control - Printronix T2N series User Manual

Scalable Font Control

This section is for emulations which use scalable fonts (PGL and ZGL only). EGL does not use
scalable fonts.
IMPORTANT: For most applications, the default settings for font memory are acceptable.
DO NOT change the defaults unless your application requires an uncommon memory
configuration.
Max Font Buffer
The maximum amount of DRAM allocated for downloading fonts (TrueType, Scalable, or Bitmap).
DRAM allocation will not take effect unless you save it in a configuration and the printer is powered
up with that configuration.
The range is 1 to 18 (units of 100 Kbytes), and the factory default is 11 (1100 Kbytes).
Max Cache Memory
The Maximum Cache Memory option specifies the size of the memory block that can be allocated to
the font cache. The font cache stores bitmaps that are created on demand from the font outlines
stored on the printer flash. The cache allows the printer to print scalable fonts at optimum speed.
Memory block allocation will not take effect unless you save it in a configuration and the printer is
powered up with that configuration.
To calculate the memory requirement, use the following equation:
(HS x VS x Average Height x Average Width x NumOf Char) / 8
where:
HS = Horizontal resolution
VS = Vertical resolution
Average Height = Average character height (inches)
Average Width = Average character width (inches)
NumOfChar = Number of Characters to be cached
The allowable range is 200 KB through 2000 KB in 200 KB increments.
The factory default is 1800 KB.
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