Measurement with Nonius Marks (visual)

If you have neither a USB microscope camera nor an iPhone with the iRegister app, you can read off misregistration visually using Nonius marks (see Nonius mark). Like the USB microscope camera, this method lets you measure spot colors in any print order. However, this method is very time-consuming and prone to errors.

Measurement with a Nonius Mark - Spot Color Example

In the example below, we describe measurement for individual compensation. The sheet was already output via APSC and automatic compensation was run on the four process colors with a characteris­tic curve. Now residual misregistration of the spot color is to be measured and the plate re-imaged.

IconPrerequisite00021.png

Prerequisite: The printed sheet is at hand. The Nonius marks are placed on the sheet (see Nonius mark).

Proceed as follows to measure the spot color:

1.Go to the APSC job list.

2.Select the job.
Make sure to select the correct sheet surface.

3.Click "Measured Data Individual".
The "Measurement Editor" opens. The correct job is automatically selected in the top list.

4.Click "Create".
The dialog for capturing measurement data displays:

individuelle_kompensation_04.png

 

5.Select the number of marks that are located on the sheet (1).

6.Enter the offset of the marks to the sheet margin (2).
See Check offset to sheet margin (mm).

7.Click the first mark (3).

8.Read off the misregistration on the sheet and enter it in APSC (4).
See also Enter/edit "measurement data".
The following screenshot shows an example of what to enter for a mark. The offset between two graduations is 0.05 mm (line width = 0.02 mm; line offset = 0.03 mm)

nonius-marke_04.png

 

9.Click the mark again to confirm your input:

nonius-marke_03.png

 

10.Capture misregistration for all the other marks. To do this, click the next mark and enter the misregistration that you read off.

11.Click "Apply" when you have captured all the marks.

individuelle_kompensation_05.png

 

12.Give the measurement data set a unique name (1).
You must select this data set in the ImpositionOutput sequence for re-imaging. The data set can also be used for repeat jobs. For that reason, select a name you can remember easily.

13.Click "Save" (2).

The data set is saved and is available in Prinect Cockpit. In the next step, you must select this data in the ImpositionOutput sequence.