Acoustic B410 Specifications download pdf (Page 77)

43984801TX Rev.3

77 /

Oki Data CONFIDENTIAL

7.4 Down Line Loading Fonts

Each down line loading font is abbreviated as DLL.

DLL’s are bitmap font DLL and scalable font DLL.

The number of fonts that can be down line loaded to respective B4300 printers depends on

the RAM capacities they have. The maximum number of bitmap and scalable fonts that can

exist concurrently in each of them is 32,768 in total (for HP emulation).

7.4.1 Bitmap DLL Fonts

Support for a compacted bitmap data format is provided for HP emulation.

7.4.2 Scalable DLL Fonts

Down line loading data formats of scalable fonts are an Intellifont-based format (which is called

PCLeo) and a TrueType-based format.

7.5 FONT (POSTSCRIPT3 EMULATION)

• Types of fonts

Fonts can mainly be divided into Bit Map Fonts and Scalable Fonts (Outline Font).

a) Type-1 Scalable Fonts

(1) Scalable Fonts are fonts in which the coordinate position of the edges of the character

image was numericalized based on certain mathematical formulas. By patternizing to

Bit Map patterns using an exclusive rasterizer, character images are formed for print.

(2) Type-1 fonts are a program described in PostScript language, and are not data col-

umns.

(3) There are some types of mathematical formulas, but Type-1 fonts apply tertiary Bezier.

(4) As rasterizing is time-consuming, characters that have been patternized into Bit Map

patterns are to be registered in cache memory.

b) Type-42 Scalable Fonts

As PostScript Interpreter supports TrueType fonts, it supports Type-42 fonts. The TrueType

fonts used in the document by the user is converted to Type-42 by the printer driver on the

host computer side, and is then sent to the printer. Thus, TrueType fonts are supported.

c) Type-3 Scalable Fonts

Although Type-3 fonts were used in early PostScript printers, they aren’t possessed as

residents in this device. The printer driver on the host computer side downloads the fonts

as Type-3 mainly when the fonts that don’t exist in the printer are used in documents.

Type-3 fonts are supported with this device.

d) Type-43 Scalable Fonts

Type-43 fonts is a special type for PostScript made from Xionics making the MicroType font

made from Agfa a PostScript font, and enabling use of it.

Type-43 fonts is used as the PS Resident Fonts with this device.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 183 184

No comments

Acoustic B410 Specifications Page 77