Specifications

Frequently Asked Questions and Troubleshooting
Use the following procedures to perform basic troubleshooting tasks
on the SelfCheck™ System:
How do I increase or decrease the volume of happy/sad tones?
The volume control knob is located behind the door in the front
center of the machine. Turn clockwise to increase the volume and
counter-clockwise to decrease the volume.
SelfCheck System is not Responding
Possible cause Solutions
No AC power.
1 Make sure the outlet being used is not operated
from a wall switch or other control device.
2 Check to see if any other machine or appliance
using the same outlet is working or not.
3 If the outlet is dead, have a qualified technician
check the circuit breaker or fuse box.
There is a computer problem with the
system.
In the U.S., call 3M Technical Support at 1-800-328-
0067. Outside the U.S., call your local 3M office.
Refer to "Obtaining Service and Supplies" in this guide.
Scanner Problems
If the scanner is functioning properly, the bar code on the item being
scanned may be faded or dirty. Try an item with a clean, good quality
bar code.
Message Issues
When changing text in a receipt or in a screen, press and hold the
Ctrl key on the keyboard, then press and hold the left mouse button
to drag the text to the desired location.
If a language other than English is selected, the text on the top part
of the Message Screen Editor window may be incorrect. You may
need to go to the drop-down menu and select the desired language.
Screen does not change after a book is removed from the cradle
Problem: The item sensors do not change states when the book is
removed.
Solution: Too much light may be shining on the SelfCheck system
cradle. Reduce the light shining on the SelfCheck system cradle.
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