Casio IT-800 Series, Software Manual

Page: 37 / 325

37
2.2.2 Scanning Method
The Laser Scanner has “scanning state” (emits laser beam to read a bar code) and “standby state”
(scanning is halted and in standby state). These two states are controlled to start scanning bar code
and stop the scanning.
Table 2.27 Scanning methods
Scan method Description Conditions for scanning to end
Timeout
Yes or
No
Single scan Press Trigger key to start
scanning. Scanning is
stopped when either
scanning is succeeded or one
of the scan end conditions
(right side) is met.
•
Timeout time has elapsed.
•
OBRClose function is called.
Yes
Continuous scan
(controlled with
Trigger key) Press Trigger key to start
scanning, and scanning will
continue as long as the
Trigger key is held down.
Scanning will stop when
either scanning is completed
for just preset no. of times
for scanning or one of the
scan end conditions (right
side) is met.
•
Timeout time has elapsed after
scanning a bar code.
•
Scanning for the number of preset
times is complete.
•
The Trigger key is released.
•
OBRClose
function is called.
Yes
Continuous
scanning
(controlled by
program) Scanner library functions are
used to start and stop
scanning. The previous
scanning data and scanning
data overlapped with other
scanning data will be
disregarded. Also, to save the
power during scanning,
emitting laser beam will be
turned off between laser
emissions. (note 2)
•
Timeout time has elapsed after
scanning the precious scanning.
•
Scanning end function is called while
scanning continues.
•
OBRClose function is called.
Yes
Notes:
1.
The scanning method set by default are “Continuous scanning (controlled with Trigger
key)” and “No. of preset times for continuous scanning = 1”.
2.
In condition where the parameter in the registry has been set, performing a full reset on the
terminal makes emitting the laser beam is turned off intermittently between laser emissions
possible.
The path of the registry is as follows.
Path : HKEY_LOCAL_MACHINE\Drivers\CASIO\Laser
Data-type : DWORD
Parameter : ScnBlk (1: valid, 0: invalid)