You have performed an incorrect operation.
An initial clear should jump you back to REG without data loss:
Turn key to P mode.
Turn power off at wall
Hold SUBTOTAL (SBTL) button down
Turn power on at wall
Wait for print out
Let go of SUBTOTAL
Turn key back to REG mode
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If anyone needs a Samsung / Sam4s ER-5200 or ER-5200M manual, try here:
http://the-checkout-tech.com/manuals/cashregisters/Samsung2.php
Registerman, December 2010
