DS4800 REFERENCE MANUAL
9
TROUBLESHOOTING GUIDE
Problem Suggestions
Reading:
Not possible to read the
target barcode (always
returns No Read)
Check synchronization of reading pulse with object to read:
Is the scan line correctly positioned?
Place barcode in the center of scan line and run Test mode
(selectable by Genius™ as an Operating Mode). If you still have
trouble, check the following:
• Is the reading distance within that allowed (see reading
diagrams)?
• Is the Tilt angle too large?
• Is the Skew angle less than 15° (direct reflection)?
• Choose the Code Definition branch and enable different
Code Symbologies (except Pharmacode). Length = Min
and Max (variable).
• Is the Bar Code quality sufficient?
If you had no success, try to perform the test using the
BARCODE TEST CHART included with the product.
Communication:
Device is not
transmitting anything to
the host
• Is the serial cable connected?
• Is the correct wiring respected?
• Are serial host settings equivalent to the serial device
setting?
• If using CBX, be sure the RS485 termination switch is
positioned to OFF.
Communication:
Data transferred to the
host are incorrect,
corrupted or incomplete
• In the Genius™ program select the Data Communication
Settings/Data Format/Standard Parameters branch and
check the Header, Separators, and Terminator values
• Also check the Code Field Length and Fill Character values.
• Are the COM port parameters correctly assigned?
Communication:
Always returns the
Reader Failure
Character (<BEL> char
as default)
• Contact your local Datalogic office or Datalogic Partner or
ARC, because either a Motor or Laser failure has occurred.
• Note the exact model and Serial Number of the device.
How do I obtain my
units’ serial
numbers?
• The device’s serial number is printed on a label that is affixed
to the body of the reader.
• Serial numbers consist of 9 characters: one letter, 2
numbers, and another letter followed by 5 numbers.
90
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