User Manual

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Example 1.3： Cancel user-defined prefix in QR code
When you edit user-defined prefix and suffix, it will cancel the prefix and suffix you set if you scan
“user-defined prefix” or “user-defined suffix” and add no character and save.
For example, cancel user-defined prefix in QR code, first scan “user-defined prefix”, then scan 7,3,
and save. The prefix in QR code has been canceled.
Note: If there is a prefix for all type of barcode, after you done the operation above, the QR code will
have the prefix you set for all type barcode.
If you need to cancel all prefix or suffix for all type of barcode, please scan “clear all user-defined
prefix” and “clear all user-defined suffix”
USB update speed setting example
If the PC is weak properties, it is easy to have error of transmission and you need to set USB
keyboard update speed to low speed, like 50ms (user-defined speed)
First, scan “User-defined update speed” then scan 5,0 in appendix 1 and save.
Warning tone
When abnormal data transmission occurs, the scanner gun will issue a continuous four-tone alarm
sound prompt. If this phenomenon occurs, please check whether the connection line is normal.
Reading skills
In order to obtain good reading effect, the aiming beam emitted by the scanning gun should be in
the center of the aiming bar code, but it can be aimed in any direction for reading.
Hold the scanning gun in front of the bar code and press the button to align the sight beam to the
bar code center.
The closer the scanner is to the bar code, the smaller the aiming beam is; the farther the scanner is
away from the bar code, the larger the aiming beam is. If the bar code is small, the scanning gun
should be close to the bar code; if the bar code is large, the scanning gun should be a little farther
from the bar code, so that it is easier to read the bar code correctly.
If the bar code has a high reflectivity (e.g. coated surface), you may need to tilt the scanning gun at
an angle to scan the bar code successfully.