Epson LQ-570e User Manual page 87

Set the paper thickness lever (located under the printer cover)
to position 2.
Before printing, turn on the card mode by pressing the Tear
Off/Bin button until both Tear Off/Bin lights are on. After you
finish printing on postcards, press the Tear Off/Bin button
once to exit the card mode. (Bin 1 of the optional cut-sheet
feeder is selected.)
Use postcards only under normal temperature and humidity
conditions, as follows:
Temperature
Humidity
15 to 25 °C (59 to 77 °F)
30 to 60% RH
Printing on Single Sheets
3
3-7