Faq List; Abnormal Print Results - Epson TM-L90 Developer's Manual
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Also See for TM-L90:
- Technical reference manual (212 pages) ,
- Service manual (148 pages) ,
- User manual (112 pages)
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FAQ List
The questions shown in the list below begin with "Q" and their replies with "A".
1. Look through sentences beginning with "Q" to find information relating to a question or
problem.
2. Then follow the instructions described in the "A" sentence below it.
Abnormal Print Results
Q: The printer does not print according to selected program settings.
A: Check the hexadecimal dump to confirm whether data was properly received.
The hexadecimal dump is designed to output received data in its original format. Output the
data from the hexadecimal dump and compare it with the sent data.
Confirmation procedure
1. Output the contents of the hexadecimal dump. (Refer to section below "Outputting content
of hexadecimal dump. ")
2. Compare that with the sent data.
3. If the data from the hexadecimal dump matches the sent data, proceed to "Corrective
Procedure" shown below.
Corrective procedure
Begin by confirming that correct command procedure was followed.
(Refer to the "ESC/POS Application Programming Guide. ")
Outputting content of hexadecimal dump
Use the following procedures to view the contents of the hexadecimal dump.
1. With the paper roll cover in an open state, press and hold the FEED button; then press the
Power supply switch.
2. Close the paper roll cover.
The received data will now be printed in both hexadecimal and character formats.
3. When printing completes, power off the printer.
Rev. A
TM-L90 Developer's Guide
Application Development Information 4-15
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