Error Message:

HEAD: LV Too much stray light for beam balance

Applies to:

• Thermal

Service Information:

The amount of leakage light on the shutter sensor is so large that the HC board can not null it out. Check contrast with "head power full / head power off" to determine if LV is working. If contrast is bad it may be possible to improve it by changing the "head bposn" setting.

Operator Action:

Call service.

Cause:

• Too much leakage light detected on shutter sensor.

See Also:

• NVS: head bposn
• Command: head power