Cleaning The Scanner And Camera Windows And Screen - Intermec CN3 User Manual

Chapter 4 — Maintaining the Computer
Problems While Scanning Bar Codes (continued)
Problem
The input device attached to the
CN3 does not work well or read
bar code labels very quickly.
The scanner will not read the bar
code label.
The scanner does not read the bar
code labels quickly, or the
scanning beam seems to be faint
or obscured.
You scan a valid bar code label to
enter data for your application.
The data decoded by the scan
module does not match the data
encoded in the bar code label.

Cleaning the Scanner and Camera Windows and Screen

110
Solution
Set the Scanner Model command to the specific attached input device. Check
enabled bar code symbologies and enable only the symbologies being used.
Aim the scanner beam to cross entire bar code label in one pass. Vary the
scanning angle.
Check the quality of the bar code label, Scan a bar code label that you know will
scan. Compare the two bar code labels to see if the bar code quality is too low.
You may need to replace the label that you cannot scan.
Ensure the bar code symbology is enabled. Use Intermec Settings to check the
symbologies. Expand Data Collection > Symbologies beneath devices listed
(scanner, virtual wedge) to check and enable symbologies, then scan the bar code
label again.
Ensure the CN3 application is expecting input from a bar code. You may need to
type this information instead.
The scanner window may be dirty. Clean the window with a solution of
ammonia and water. Wipe dry. Do not allow abrasive material to touch the
window.
The CN3 may have decoded the bar code label in a symbology other than the
label's actual symbology. Try scanning the bar code label again. Make sure you
scan the entire label.
To keep the CN3 in good working order, you may need to clean the EA11
scanner and color camera windows and the screen.
Clean the scanner and camera windows and screen as often as needed for
the environment in which you are using the CN3. To clean the CN3, use a
solution of ammonia and water.
There are no user-serviceable parts in the CN3. Opening the CN3 will
void the warranty and may cause damage to the internal components.
To clean the scanner, camera windows, and screen
1 Press the Power button to turn off the CN3.
2 Dip a clean cloth towel in the ammonia solution and wring out the
excess.
3 Wipe off the scanner window and camera lens and flash area. Do not
allow any abrasive material to touch these surfaces.
CN3 Mobile Computer User's Manual