Symptom 

Cause(s)

Resolution(s)

Scanner will not power

1) Faulty cable
2) Port not enabled on device scanner connected to 

1) Replace cable
2) Enable port on device (see device user manual)

Scanner decodes but no data displayed 

1) Scanner not programmed for interface type

1) Scan programming code for required interface type (see note 1) 

Scan beam has loops in it 

1) Mal adjusted mirror

1) Scanner needs to be sent in for service

Scanner makes a high speed tapping sound

1) Scan engine is out of adjustment

1) Scanner needs to be sent in for service