Lotem 400 Calibration Overview

The Lotem 400 Family platesetter optic system is calibrated before the device is shipped to the end user.

After installation, you must verify that the calibrated values are correct. Expose the SDT file from Brisque and examine the plate, see Scitex Digital Target (SDT). If results are unsatisfactory, perform the following calibration test procedures in Brisque, using the Lotem Calibration application. Save the machine calibration parameters on Lotem Controller.

Note: Perform the tests in the order in which they appear:

1. Focus Calibration Test
2. Elevation Test and Adjustment Procedure
3. Intensity Calibration Test
4. Resolution Calibration Test
5. Delay Calibration Test
6. Laser Uniformity Calibration Test
7. Drum Speed Calibration Test

Two additional calibration procedures are required to complete the calibration process (these tests are also performed on a regular basis by the user):

• Excurve calibration (page 92)
• Tone Reproduction calibration (page 112)