hp euro DIMM (C4210A)

Introduction

Hewlett-Packard has made available the Euro DIMM hardware solution for use with the LaserJet 2100, LJ 4000, LJ 4500, LJ 5000, LJ 8000 and LJ 8100 printers. When installed into the appropriate LaserJet printer, the Euro DIMM hardware integrates the EURO character into the printer as a device font. In other words, the DIMM 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, along with the accompanying software development kit, to provide you with appropriate font selection and metric information, so that you can access the EURO and position it on the page as required.

Table 3 below lists the symbol sets, supplied by the DIMM, which contain the EURO character. It is important to note that in order to print the EURO, the unbound typefaces on the DIMM must be used in conjunction with one of the symbol sets that contain the EURO character. The unbound typefaces listed in Tables 1 and 2 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. Remember, only those symbol sets listed in Table 3 contain the EURO character.

Windows 3.0 Latin 1

9U

309

Windows 3.1 Latin 1

19U

629

Windows 3.1 Latin 2

9E

293

Windows 3.1 Latin 5

5T

180

Windows Baltic

19L

620

ISO 8859-15 Latin-9

9N

302

PC-858

13U

437

PS Math

5M

173

MC Text

12J

394

Roman 9

4U

149

With the exception of the LinePrinter typeface, all of the metric data that are given in Table 4 above are TrueType metrics. In order to convert this 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.

Here's and example usage of the TrueType metric conversion formula supplied above.

TrueType Method:

Albertus ExtraBold

11 point at 600 dpi, 300 uom

Assume the following values:

b = 1 inch/72 points

c = 11 points

d = 1360 Design Units (Tag 433)

e = 2048 Design Units (Tag 408)

dpi = 600 dots per inch

uom = 300 PCL Units of Measure

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

= round(91.66)

= 92 dots

x = round(1360/2048 * 92 * 300/600)

= round(30.592)

= 31 PCL Units of Measure

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

18

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

300