Epson TM-L90 Technical Reference - Page 82
Setting/Checking Modes of TM-L90 other than 4** models, TM-L90, Peeler other than 39* models
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Note: Do not use this mode when using OPOS. To do so will cause continuous polling, ending in undesirable results. 4.2 Setting/Checking Modes of TM-L90 other than 4** models, TM-L90 Peeler other than 39* models Besides the ordinary print mode, the printer has the following modes to set or check settings of the printer. ❏ Self-test Mode ❏ Memory Switch Setting Mode (page 83) ❏ Hexadecimal Dump Mode (page 84) The mode is selected depending on the operation performed when turning on the printer. Close the roll paper cover, and turn on the printer while pressing the FEED button. Self-test Open the roll paper cover, and turn on the printer while pressing the FEED button, and then press the FEED button twice and close the roll paper cover. (For Peeler Models only) Load paper in the paper path, and then press the FEED button. Memory Switch Setting Open the roll paper cover, and turn on the printer while pressing the FEED button, and then close the roll paper cover. (For Peeler Models only) Load paper in the paper path, and then press the FEED button. Hexadecimal Dumping 4.2.1 Self-test Mode You can check the following items using the self-test. ❏ Firmware version ❏ Interface type ❏ Receive buffer size ❏ BUSY condition ❏ Resident font ❏ Whether or not there are auto carriage returns 82 Setting/Checking Modes