IBM 6400 Setup Guide

6–9
Chapter 6. Routine Service and Diagnostics
Hex Code Printout
A hex code printout (or hex dump) lists each ASCII/EBCDIC data character
received from the host computer, along 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/EBCDIC character to its corresponding hex code (or
vice-versa), refer to the ASCII code chart in the 6400 ASCII Programmer’s
Reference Manual, or the EBCDIC code chart in the 6400 Coax/Twinax
Programmer’s Reference Manual.
Each printable character prints both as its assigned symbol and as its hex
equivalent. Each nonprintable character prints both as a period (.) and as its
hex equivalent.
When 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 obtain a hex code printout, perform the following steps.
NOTE: The asterisks (*) indicate steps specific to using the coax/twinax
interface menus which are only displayed when the IBM
Coax/Twinax feature is installed. These steps do not apply to the
Multi-Platform Interface Coax/Twinax feature.
Step
Key Result Notes
1. Press:
Stop
NOT READY
Places the printer in NOT
READY mode.
2. Press:
Scroll
Scroll
+
OPERATOR MENU
UNLOCKED
Press both keys at the same
time. Unlocking the
Operator Menu allows you
to test your printer.
3. Press:
Menu
OPERATOR MENU
PRINTER CONTROL
First of the series of
configuration menus.

IBM 6400 Specifications

General

Brand	IBM
Model	6400
Category	Printer
Language	English