Honeywell 1900GHD-2 User Guide - Page 116

Aimer Mode This feature allows you to turn the aimer on and off. When the Interlaced bar code is scanned, the aimer is interlaced with the illumination LEDs. Default = Interlaced. Off * Interlaced Centering Use Centering to narrow the scanner's field of view to make sure that when the scanner is hand-held, it reads only those bar codes intended by the user. For instance, if multiple codes are placed closely together, centering will insure that only the desired codes are read. (Centering can be used in conjunction with Aimer Delay, page 4-17, for the most error-free operation in applications where multiple codes are spaced closely together. Using the Aimer Delay and Centering features, the scanner can emulate the operation of older systems, such as linear laser bar code scanners.) Note: To adjust centering when the scanner is in the stand, see Presentation Centering (page 4-10). If a bar code is not touched by a predefined window, it will not be decoded or output by the scanner. If centering is turned on by scanning Centering On, the scanner only reads codes that pass through the centering window you specify using the Top of Centering Window, Bottom of Centering Window, Left, and Right of Centering Window bar codes. 4 - 18