Data Dump Mode - Epson FX-870 User Manual

Data Dump Mode

Data dump mode is a special feature that allows experienced users
to find the cause of communication problems between the printer
and application programs.
In data dump mode, the printer produces a printout of all the codes
it receives. To use data dump mode, follow these steps:
1. Make sure the printer is turned off.
Hold down the PAUSE button while you turn on the printer.
2.
Load the paper.
3.
Next, run an application program or a program you have
4.
written in any programming language. Your printer prints all
the codes it receives in hexadecimal format and text, as shown
below.
Dump Mode
Data
4F 50 51 52 53 54 55 56 67 56 59 5A 5B 5C 5D 5E
0001
5F 60 61 62 63 64 65 66 67 66 69 6A 6B 6C 6D GE
0002
6F 70 71 72 73 74 75 76 77 76 79 78 70 7C 7D 7E
0003
5. To turn off data dump mode, press the PAUSE button to stop
printing and then turn off the printer.
By reading the characters printed in the text field on the right side of
the printout or the printout of hex codes, you can check which codes
are being sent to the printer.
In the text field, characters appear as their true ASCII characters if
they are printable. Nonprintable codes, such as control codes, are
represented by dots.
Using the Printer
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