hp euro SIMM (C4208A)

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Introduction

Hewlett-Packard has made available the Euro SIMM (C4208A) hardware solution for use with the LaserJet 4 Series, LaserJet 5P, Color LaserJet and Color LaserJet 5 printers. When installed into the appropriate LaserJet printer, the Euro SIMM hardware integrates the Euro character into the printer as a device font. In other words, the Euro SIMM makes the Euro character available for your application's use in the same manner that the printer makes characters from its original, on-board fonts available. It is the intent of this primer to provide you with appropriate font selection and metric information so you can access the Euro and position it on the page as required.

typeface selection

symbol set selection

Table 2 below lists the symbol sets, supplied by the Euro SIMM, which contain the Euro character. It is important to note that in order to print the Euro, the unbound typefaces on the Euro SIMM must be used in conjunction with one of the symbol sets that contain the Euro character. The unbound typefaces listed in Table 1 can easily be identified by the underscore
( __ ) in their Symbol Set value field. This character indicates that you can fill in this field with any valid symbol set value. It is also important to use Intellifont Symbol Sets when your application is using Intellifont typefaces, and use TrueType Symbol Sets when your application is using TrueType typefaces. Remember, only those symbol sets listed in Table 2 contain the Euro character.

The LinePrinter typeface is the only bound typeface listed in Table 1. By definition, bound typefaces contain their own symbol set mapping and cannot access characters from any other symbol set. Therefore, we have included the Euro character in the LinePrinter typeface that contains the ISO 8859-15 Latin-9 (9N) symbol set value. Be sure to use this symbol set values when attempting to print the Euro character in the LinePrinter typeface.

typeface metrics

This section provides the metric information for the Euro character. Table 3 below depicts each typeface and the Euro width value. The width value, expressed as HorzEsc, is taken either from the TrueType, Intellifont or Bitmap font directly. Consequently, each value represents the width of the Euro relative to the TrueType design window, the Intellifont design window or the Bitmap font resolution, respectively. You can find information for converting these data into PCL Units of Measure immediately following Table 3.

calculating TrueType metrics

In order to convert TrueType metric information into PCL Units of Measure, you must use the following formula:

EMsize = round(c * b * dpi)

x = round(d/e * EMsize * uom/dpi)

Where:

EMsize = size of EM in device resolution dots

c = point size of font

b = inches per point

dpi = device resolution

x = desired metric value in units of measure

d = metric value in Design Units (HorzExt)

e = number of Design Units in the design EM

uom = PCL Units of Measure

As you can see, most of the values for these variables are supplied by your application, and depend upon the font selection criteria at print time. The exceptions are 'd' and 'e'. Table 4 supplies the value for the variable 'd', while 'e' is the constant value 2048.

This example below converts the width of the Euro character found in Arial at 20-point size, to PCL Units of Measure.

TrueType Method:

Arial

11 point at 600 dpi, 300 uom

Assume the following values:

b = 1 inch/72 points

c = 11 points

d = 1139 Design Units

e = 2048 Design Units

dpi = 600 dots per inch

uom = 300 PCL Units of Measure

EMsize = round(11 * 1/72 * 600)

= round(91.66)

= 92 dots

x = round(1139/2048 * 92 * 300/600)

= round(25.583)

= 26 PCL Units of Measure

calculating Intellifont metrics

Use the following formula to convert Intellifont metric data into PCL Units of Measure:

This example converts the width of the Euro character found in CG Times at 20-point size, to PCL Units of Measure. The first example uses 300 PCL Units per inch and the second example uses 600 PCL Units per inch.

The font metric units for scalable fonts are always given in Design Units. Convert Design Units to PCL Units using the following equation:

x =round( b * c * (d/e) * (uom) )

where:

x = desired metric value in units of measure

b = inches per point

c = point size of font

d = metric value in Design Units

e = number of Design Units in the design EM

uom = PCL Units of Measure

Intellifont Method (20 point at 300 PCL Units per inch)

Assume the following values:

b = 1 inch/72.307 points

c = 20 points

d = 4391 Design Units

e = 8782 Design Units

uom = 300 PCL Units of Measure

Using the above values:

x = round(1/72.307 * 20 * 4391/8782 * 300)

= round(41.489)

= 41 PCL Units of Measure

Intellifont Method (20 point at 600 PCL Units per inch)

Assume the following values:

b = 1 inch/72.307 points

c = 20 points

d = 4391 Design Units

e = 8782 Design Units

ppi = 600 PCL Units of Measure

Using the above values:

x = round(1/72.307 * 20 * 4391/8782 * 600)

= round(82.979)

= 83 PCL Units of Measure

calculating bitmap metrics

In the case of the LinePrinter typeface, the metric data is resolution specific. The resolution of the LinePrinter supplied by HP Euro SIMM is 300 dpi. As such, the metric data describes the width of the Euro in 1/300-inch increments. To convert this value inches, simply divide it by 300.

18

----- = .06 inches (16.67 characters per inch)

300