Casio PX-780 Service Manual page 30

6-3. C-MOS Imager
(IT-3100M55E/M55E2/M55U/M56E/M56E2/M56U only)
1. Turn on the Handheld Printer Terminal, position its C-MOS Imagerreader port near the bar code or 2D
code, and then press the Trigger Key (R or L).
2. The Handheld Printer Terminal reads the code by emitting laser and red lights.
Indicator 2 (read operation indicator lamp) lights in green when the reading is successful.
Bar code and stacked 2D code Reading Guide
When you press the Trigger key (R or L), LEDs in the Handheld Printer Terminal emit laser and red lights.
Align the laser frame with the center of the bar code or 2D code you are trying to read. Take particular
care aligning the light when there are other bar codes nearby.
When reading a large code, adjust the position of the Handheld Printer Terminal so that the entire code is
enclosed within the laser frame.
Important!
• If you have problem not properly reading a code, change the angle and/or the distance between the code
and the Handheld Printer Terminal and try reading it again.
• A bar code can be read from a distance of 40mm to 410mm (1
be read from a distance of 50mm to 250mm (1
distance of 60mm to 150mm (2
the resolution.
• For smaller codes, move the Handheld Printer Terminal closer to the code.
• To read a large code, move the Handheld Printer Terminal further away from the code.
• Note that a special reader application is required to read bar codes and 2D codes.
• The IT-3100M55E/M55E2/M55U/M56E/M56E2/M56U support reading of 2D code symbologies.
• Fingerprints, dust, dirt, or other foreign matter on the C-MOS Imager reader port can cause abnormal
reading. Should the reader port become dirty, wipe it clean with a soft and dry cloth.
15 " to 9
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16
3 " to 5 5 "). The actual reading distance depends on the symbology and
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8 16
– 28 –
9 " to 16 1 "), and a stacked 2D code can
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16 8
13 ") and matrix 2D code can be read from a
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16