Printronix

P9212, Setup Manual

Page: 138 / 206

5–14
Routine Service and Diagnostics
Printing Hex Code
A hex code printout (or hex dump) translates all incoming data to
hexadecimal equivalents. A hex dump lists each ASCII data character
received from the host computer, together with its corresponding two-digit
hexadecimal code. Hex dumps can be used to troubleshoot some types of
printer data reception problems.
To convert an ASCII character to its corresponding hex code (or vice-versa),
refer to the ASCII code chart in Appendix C.
Figure 5–4 shows a few lines of a hex dump printout as a sample. Each
printable character prints both as its assigned ASCII symbol and as its hex
equivalent. Each non–printable (ASCII control) character prints both as a
period (.) and as its hex equivalent.
The letter “p” before a hex code indicates an active Paper Instruction (PI)
line. A blank space before a hex code indicates an inactive PI line.
Figure 5–4. Sample Hex Code Printout