Paxar Monarch HandiPrint 6017 Operating Instructions Manual page 16

Quickly swipe the card through the reader either left-to-
right or right-to-left with the magnetic stripe in the reader.
The magnetic stripe must be facing toward the handheld
while it is passed through the reader.
Stripe is facing
toward handheld
The green LED on the printer indicates the following:
LED Indicator
On
Blinks once
Off
Refer to your application for more magnetic stripe reader
information.
3-2 Using the Printer
Status
Ready/waiting for card.
Error reading card's data.
Good swipe (card's data read). OR
Not ready for card.