Motorola LS9203 用户手册

3-3

This chapter covers suggested scanner maintenance, troubleshooting, technical specifications, and signal descriptions (pinouts).

Cleaning the exit window is the only maintenance required. A dirty window may affect scanning accuracy.

•

Do not allow any abrasive material to touch the window.

•

Remove any dirt particles with a damp cloth.

•

Wipe the window using a tissue moistened with ammonia/water.

•

Do not spray water or other cleaning liquids directly into the window.

If after performing these checks the symbol still does not scan, contact the distributor or call the local Global 
Customer Interaction Center. See 

 for contact information.

The omni-line scan pattern does not display when 
the directions are followed for installing the 
interface cable on 

No power to the scanner.

Ensure the host has power, and is on. If the scanner uses a 
separate power supply, ensure it’s connected to a working AC 
outlet.

Interface cable is not properly 
connected.

Check for loose cable connections.

Scan line(s) display, but bar code cannot be read.

Scanner is not programmed to read the 
bar code type.

Ensure scanner is programmed to read the bar code type being 
scanned.

Bar code is damaged.

Try scanning other bar codes of the same bar code type.

Bar code is too far from scanner.

Move the bar code closer to the scanner.

The host has disabled scanning or 
overridden parameter settings.

See the technical person in charge of scanning.

Bar code is decoded, but not transmitted to the host. Scanner is not programmed for the 

correct host type.

Scan the appropriate host type bar code.

Scanned data is incorrectly displayed on the host.

Scanner is not programmed to work with 
the host. Check scanner host type 
parameters or editing options.

Ensure proper host is selected.

For RS-232, ensure the scanner’s communication parameters 
match the host’s settings.

For keyboard wedge, ensure scanner is programmed with the 
correct country code and that the CAPS LOCK key is off.

Ensure editing options (e.g., UPCE-to-UPCA Conversion) are 
properly programmed.

Note