diff --git a/Code/thermal_printer/printer.c b/Code/thermal_printer/printer.c
index c56cd04..4b49ed7 100644
--- a/Code/thermal_printer/printer.c
+++ b/Code/thermal_printer/printer.c
@@ -57,7 +57,7 @@ uint8_t IsPaper()
   
   if(  millis() - printer_vps_time > 10) {
     ENABLE_PEM;
-    if(ASK4PAPER==HIGH) // * temporary set,LOW is what we want**
+    if(ASK4PAPER==LOW) // * LOW is what we want**
     {status = IS_PAPER;}
     else
     {status = NO_PAPER;printf("Error:NO PAPER\n");}