Casio IT-800 Series Software Manual page 81

Print Weight Adjust Function
This function improves scanning bar codes comprised with thick or thin bars. The improvement
can be selected in seven grades. In ordinary condition, the setting is not required to change.
However, it is useful to change it if scanning a particular bar code is difficult.
Thin
1 2
Figure 2-8
The functions of the Imager Library relevant to the Print Weight are as follows.
IMGSetPrintWeight
IMGGetPrintWeight : Retrieves print weight of bar thickness used for decoding symbol.
Decode Window Function
This is a function that specifies an area for decoding bar code located in the center of the aimer
emitted by the CMOS Imager. It is useful for decoding a specific bar code symbol only among
plural bar codes printed on same paper sheet. If either Mode 1 or Mode 2 of the parameters is
specified in the Decode Window function, the decoding area is automatically determined to
scan only a bar code located near the center. Setting the User Setting effect in the Decode
Window function allows an area of decoding to be specified with X and Y coordinates.
Table 2.60
Setting Parameters for
Decode Window function
Disable
Mode 1
Mode 2
User Setting
If the Decode Window function is set for scanning a bar code, a bar code or a part of the bar
code that is within the aimer's area (see Figure 2.9) is scanned, and other bar codes outside of the
area are not scanned. For example, in Figure 2.9, bar code A cannot be scanned because the entire
bar code is outside of the aimer area, but bar code B can be scanned because a part of the bar code
is within the area.
A
B
Figure 2-9
Default
3 4
: Sets up print weight of bar thickness used for decoding symbol.
Disable the Decode Window function.
Scan a single bar code located in the center area of the aimer.
Scan Composite code located in the center area of the aimer.
Specify decode area with X and Y coordinates.
Aimer
81
Thick
5 6 7
Description
The entire bar code is outside of the area.
A part of bar code B is within the area.
Decode area specified by the Decode Window
function which is automatically set up by
designating Mode 1 or Mode2 in the function.
Remarks