Hexadecimal Dump - OKIDATA ML395C Service Manual

Page: 129
Service Guide ML395/395C
Chapter 4 Failure & Repair Analysis

4.8.04 Hexadecimal Dump

General Information
Hexadecimal Dump Mode allows you to test the data being sent from the computer to the printer.
When the printer is in Hex Dump Mode, all data received (including text and printer commands) will be
printed in both hexadecimal and ASCII format.
NOTE: In ASCII format, all non-printable characters are represented by a period.
Example
Below is a line of BASIC code. LPRINT CHR$(27) ;"0";CHR$(30);" This is an example of hexadecimal
dump." Below is the same line as it would appear in Hex Dump Mode. 1B 30 1E 54 68 69 73 20 69 73 20
61 6E 20 65 78 .0.This is an ex 61 6D 70 6C 65 20 66 20 61 20 68 65 78 61 64 ample of a hexadecimal
dump 65 63 69 6D 61 6C 20 64 75 6D 70 2E 0D 0A
Procedure
1. Verify that paper is loaded.
2. Verify that the ribbon is installed.
3. Power OFF the printer.
4. Press and hold SELECT and FORM FEED while powering ON the printer.
5. The printer will print the line shown below.
HEX DATA DUMP
6. The printer is ready to receive data in the Hexadecimal Dump Mode.
7. Send data to the printer.
8. To exit Hex Dump Mode, power OFF the printer.
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