Operating Mode (Panel Switch Operation); Self Test Mode - Epson TM L90 Technical Reference Manual

2.12 Operating Mode (Panel Switch Operation)

In order to check the setting condition of the printer, it has the self-testing mode other than the
normal-printing mode.

2.12.1 Self Test Mode

In self test mode, following items are checked and printed out:
• Control circuit functions
• Printer mechanisms
• Print quality
• Control software ROM version
• DIP switch settings
• Memory switch setting
• Paper layout setting
Use the following procedure to start a self test.
With TM-L90
1. First, open the roll paper cover; then close the roll paper cover while pressing and holding
down the FEED button until the ERROR LED flashes. The printer prints out the various
printer states.
2. When all printer states have been printed, make sure that the following message is
displayed and the PAPER OUT LED flashes.
"If you want to continue SELF-TEST printing, please press FEED button."
The printer is now in the self test wait mode.
3. To start a test print, press the FEED button when the printer is in the self test wait mode.
4. Check that the following has been printed.
"*** completed ***"
This indicates that the printer has been initialized and made the transition to the normal mode.
Rev. B
TM-L90/TM-L90 with Peeler Technical Reference Guide
Setup 2-53