Hex Code Printout - IBM 6400 Maintenance Information Manual

Chapter 5

Hex Code Printout

Hex Code Printout

A hex code printout ("hex dump") prints every ASCII character received from
the host computer with its corresponding two-digit hexadecimal code. Hex
dumps can be used to troubleshoot printer data reception problems by
comparing the printed hex data to the data sent from the host.
In a hex dump, every character is printed as its assigned ASCII symbol and
as the hexadecimal value of the character. A character that does not have a
printed symbol (for example, a control character) is printed as a period (.) and
the hex value of the control character.
If the printer is using a parallel interface, the letter p before a hex code
indicates an active Paper Instruction (PI) line and a blank space before a hex
code indicates an inactive PI line.
To convert an ASCII character to its corresponding hex code, or vice-versa,
refer to the ASCII code chart on page 142.
Step
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
140
Press Displayed Result
Install the ribbon, load paper, and power on the printer.
NOT READY
Stop
OPERATOR MENU
UNLOCKED
Scroll↑ Scroll↓
+
OPERATOR MENU
PRINTER CONTROL
Menu
PRINTER CONTROL
Enter
INTERFACE SELECTION
PRINTER CONTROL
Scroll↑
HEX PRINT MODE
UNTIL
HEX PRINT MODE
Enter
DISABLE*
HEX PRINT MODE
Scroll↑
ENABLE
HEX PRINT MODE
Enter
ENABLE*
NOT READY
Stop
Notes
Puts printer in NOT
READY mode.
Unlocking ENTER key
gives you access to the
configuration menus.
First of series of
configuration menus.
Moves down to Interface
Selection option.
Moves down to the Hex
Print Mode option.
Moves down to Disable,
the active option.
Moves to Enable, the
alternate option.
Asterisk (*) indicates this
choice is now active.
Returns printer to NOT
READY mode.