STEP 3 - AIM AND AUTOFOCUS THE READER
PRODUCT REFERENCE GUIDE
5
STEP 3 - AIM AND AUTOFOCUS THE READER
Matrix 220 provides a built-in LED aiming system to aid reader positioning. The autofo-
cus feature is also incorporated into this function. The aiming system is accessed
through the X
-PRESS Interface.
1. Power the reader on. During the reader startup (reset or restart phase), all the
LEDs blink fo
r one second. On the reverse side of the reader near the bracket, the
“POWER ON” LED (blue) indicates the reader is correctly powered.
2. Place the Gr
ade
A Barcode Test Chart in front of the reader at the correct reading
distance for your application. See "
Global FOV Diagrams" on page 107 for reference.
3.
Enter the Aim/Autofocus function by pressing and holding the X-PRESS push but-
ton until the Aim LED is on.
4. Release the button to enter the Aim function. The aiming system turns on, and the
Autof
ocus procedure begins, see Figure 9. The Aim LED will blink until the proce-
dure is completed.
Within 3 seconds (before the reader flashes), center one of the larger codes
between the aimin
g system indicators (the code must not move during this proce-
dure).
The Autofocus procedure ends when the Reading Distance and PPI values are suc-
cessfully saved in the reader memory, the Aim LED will stop blinking and Matrix
220 emits 3 high pitched
beeps.
If the Autofocus cannot be reached after a timeout of about 3 (three) minutes
Matrix 220
will exit without saving the parameters to memory, the Aim LED will
stop blinking and in this case Matrix 220 emits a long low pitched beep.
Figure 9
NOTE
- X-PRESS Interface; Aim/Autofocus Function
You can exit the Aim/Autofocus function at any time by pressing the
X-PRESS push button once. After a short delay the autofocus procedure
is cancelled and the aiming indicators turn off.
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