Applies to

• Lotem^® 800 Family
• Lotem 400 Family
• Lotem XL

Important: Do not implement this FCO on machines that have the debris removal system installed.

Priority = Next visit

Release date = 04 November 2002
Type of change = Next Visit

Component

Optic head lens protector

Problem

When plate flyoff occurs, the edge of the plate can scratch the glass in the optic head lens protector.

Solution

Install a lens protector ring on the lens protector. This ring prevents plates from contacting the glass when plate flyoff occurs.
Note: If it ever becomes necessary to remove the lens protector ring, you will need to replace the lens protector with a new one.

Time needed to implement

1/2 hour

Parts needed

Note: The protector ring will be included in accessory kits that are distributed after November 2002.

Procedure

1. Open the rear door and remove the upper rear panel.
2. Move the carriage to an accessible position, as required.
   Note: If the optic head lens is too close to the light detector, the lens protector will not be accessible.
3. Remove the lens protector from the optic head lens.
4. Clean the outside metal surface of the protector with a lint-free cloth and ethyl alcohol.
5. Peel the paper off of the adhesive backing on the lens protector ring (part number 291A9C340) and gently place the ring onto the lens protector, as shown below. Verify that the ring is centered on the protector and press the ring firmly down to secure it in place.
   Important: Do not touch the glass.





6. Clean the lens protector glass (inside and out) using a lint-free cloth and ethyl alcohol.
7. Place the lens protector back onto the optic head lens and tighten it in place.
   Note: Do not over tighten the lens protector.
8. Calibrate the laser and verify that all laser diodes are functioning properly.
9. Run the following tests:
   • Focus
   • Resolution

   If the results are not good, change the values for the focus and resolution parameters, as required.

Logistics

Approved quantities:

Schedule supplies for first lots:

Lead Time: 1 month (20 days)

Technical contact

Dennis Kaliser

Product Support Manager: Yaron Soffer
Approval Date:

Date submitted

719-29821