Specifications

Setting Gain

The laser module gain setting, Mode 0 to Mode 3, can be selected. Selecting an optimum gain

mode enhances scanning performance especially for bar code distanced far away from the

terminal and bar code printed in high-resolution (“PCS”).

Table 2.45

Gain Mode Description

Mode 0 Standard mode

This mode generates ordinary scanning performance for bar codes with various

printing qualities and in various scanning conditions.

Mode 1 Low sensitive mode

This mode enhances scanning performance for bar codes especially with low PCS.

However, for bar codes with other PCS level, it is not recommended.

Mode 2 High sensitive mode

This mode enhances scanning performance for bar codes distanced far away from

the terminal. However, for bar codes distanced near by the terminal the

performance is relatively inferior.

Mode 3 Super sensitive mode

This mode enhances scanning performance for bar codes with thin white bars or

black thin bars or stained bars. For other conditions, it is not recommended.

The functions of the Laser Scanner Library relevant to the Setting Gain are as follows.

OBRSetGainControl

: Sets up gain control.

OBRGetGainControl

: Retrieves gain control.