Printronix L1024 Printer User Manual


 
4–4
Diagnostics and Troubleshooting
Hex Dumps
The hex dump option, outlined in the Operator’s Guide, allows you to place the
printer in a mode in which the printer will output a hexadecimal data stream.
When enabled, the hex dump mode translates all host interface data to its
hexadecimal equivalent, then prints the hex code and its printable symbol, if one
exists. Figure 3–8 shows a partial example of a hex dump.
All characters printed after entering the hex dump mode (including any in the
input buffer) are printed in two forms: as a two–symbol hexadecimal code and as
its printable symbol, if any. A non–printable code is printed as a period [.]
symbol. Up to 16 characters can be printed per line. No control codes will be
acted upon by the printer while in hex dump mode.
The 16 characters are formatted so that the 16 printable symbols are printed in
columns 1 through 16. The 17th column is blank. Column 18 contains either a p
(PI line active) or a blank (PI not active). Columns 19 and 20 contain the
hexadecimal code for the first character, followed by a blank. The PI line
condition and hexadecimal code for the second character is printed in columns
22, 23, and 24, followed by a blank. The hexadecimal code for the 16th character
is printed in columns 78, 79, and 80.
Subsequent printing observes the current setting for skip–over perforation, form
length, and top–of–form position parameters.
Cancel the hex dump mode (while off–line), by disabling it from the control
panel. The paper then may be advanced to the next top–of–form.
If a fault occurs while printing a hex dump, the printer reverts to the normal fault
state. When the fault is cleared, the printer resumes printing the hex dump (either
a partial line with a form feed, or nothing at all). Top–of–form remains
unaffected.
NOTE: This is not available for Coax/Twinax. Use the buffer dump as
described in the emulation manual instead.
The
Impact Print
54 68 65 20 49 6D 70 61 63 74 20 50 72 69 6E 74
er Emulation pri
65 72 20 45 6D 75 6C 61 74 69 6F 6E 20 70 72 69
nts in one–up, t
6E 74 73 20 69 6E 20 6F 6E 65 2D 75 70 2C 20 74
wo–up, and four–
77 6F 2D 75 70 2C 20 61 6E 64 20 66 6F 75 72 2D
up page windows,
75 70 20 70 61 67 65 20 77 69 6E 64 6F 77 73 2C
Figure 4–1. Example of Hex Dump