TROY Group Using Digital Resources - Understanding TROY’s Flash-File Feature - Manual (Page 3)

Digital Signatures and Images
Using Digital Resources
Document #50-70403-001 Rev. B Page 3 of 3
Using TROY Digital Image Fonts
(non-Microsoft Windows)
1. Review the TROY Digital Image Data Sheet for the section labeled PCL Image Selection Sequence, and
note the pattern of characters. This pattern is used to generate the digital image.
2. Send the PCL Image Selection Sequence to the printer. Remember to replace the <esc> character with
the non-printable escape character (ASCII 27 / HEX 1B). This PCL command is a font selection command,
which selects the digital image within the printer.
3. Position the printer's cursor (the printer has an invisible cursor, all dots addressable) to the desired area of
the page. There are three methods for cursor positioning; decipoints, rows/columns, and PCL units (dots).
PCL units are used for this example. The PCL units are usually defined at 300 DPI (Dots Per Inch) but may
vary. Experimentation may be necessary for your application. To position the cursor, calculate the desired
X (horizontal) and Y (vertical) position for the image placement. For this example, the values are in PCL
units (dots); therefore, if the units are set to 300 DPI, 1 inch = 300 dots. The following PCL positioning
command will move the cursor 6 inches horizontally from the left edge of the logical page (6 x 300 = 1800)
and 3 inches vertically (3 x 300 = 900) on the page. The command is: <esc>*p1800x900Y.
The difference between horizontal and vertical positioning is that the horizontal value originates from the
left-edge of the logical page, but the vertical positioning value originates from the top margin, which can be
adjusted. Therefore, if the top margin value is changed, the image will shift vertically. The printer also
supports the print and space method of printing, which means the printer's cursor will move when it receives
control codes such as a space bar, carriage return, line feed, etc. With this in mind, if you create a PCL
positioning command, the text/data must immediately follow the command. If the positioning command is
sent separately followed by a carriage return/line feed, the cursor will now move to the next row and first
column, resulting in the loss of the desired position.
4. Enter the pattern of characters found on the TROY Digital Image Data Sheet. Once again, this pattern is
used to generate the digital image. Example: abcdef. If the pattern of characters is more than one line, you
must enter a separate position call for each line of characters.
5. Print the document. A standard form feed may be used, or send the PCL command <esc>&l0H (prints the
current page).
Programming Example for TROY Digital Image Fonts
(non-Microsoft Windows)
<esc>(201Q<esc>(s0p2h72v0s0b201T ' select the Digital Image.
<esc>*p1800x900Yabcdef ' cursor position followed by the pattern of characters.
<esc>&l0H ' print the current page.
Obtaining Technical Assistance
If you experience any difficulties with the installation process, call TROY Technical Support at (800) 332-6427,
8:00 AM and 8:00 PM, Monday through Friday, Eastern Standard Time. Customers outside the United States,
please call (304) 232-0899.