# i1 Profiler with i1 Pro Measurement Devices i1 Profiler can be used in demo mode for all of the measurement file requirements used for the QuadToneProfiler apps Latest Version that supports i1 Pro 1 (rev D) (i1 Profiler v3.1.1) : https://www.xrite.com/service-support/downloads/i/i1profiler-i1publish_v3_1_1 ## Measurements for Linearization - Open i1 Profiler and check the advanced button to enable the additional options on the left side of the window. If you have a target with an even number of columns - Find the **RGB Printer** section and select **Measure Chart**. - Select the device model and define the chart structure - Use the sliders or text entry boxes to set the number of rows and column for the chart - 21-step target: 1x21 - 51-step target: 3x17 - 128-step target: 8x16 - 256-step target: 16x16 If you have a target with an odd number of columns (86, 101, 129 steps) - Find the **RGB Printer** section and select **Measure Reference Chart**. - Select the device and open the CGATS reference file for the target - Calibrate the device and follow the directions on the screen ### Saving the Measurement Data - Press the **Save Data** Button - Choose “CGATS custom...” in the file type menu at the bottom of the window and press save. - A new window will open with the save options. - Check the boxes for LAB values - Use a period as a decimal separator - Use a scale of 0-100. - I recommend saving the name and location info, but it isn’t absolutely necessary. --- ## Measurements from Ink Separation Images ### for Custom Curve Creation Tools in QTP-Pro and QTP-Pro-DN The easiest method of measuring the separation image is as a generic target in single scan mode with i1 Profiler. - Open i1 Profiler and check the advanced button to enable the additional options on the left side of the window. Find the RGB printer section and select Measure Chart. - Define the size of the target for one row for each ink you are using in the gray base curve (don’t duplicate channels, dilutions, or include the color inks in this step). Set the target to have 21 columns. - Calibrate the i1 Pro device and set it to single scan mode (M0). - Measure each row from the darkest ink to the lightest, from the white patch to the 100% patch for each row. - - Press the **Save Data** Button - Name the file for your printer, ink set, and paper, and then add “-InkSep-100”. - Choose “CGATS custom...” in the file type menu at the bottom of the window and press save. - A new window will open with the save options. - Check the boxes for LAB values - Use a period as a decimal separator - Use a scale of 0-100. - I recommend saving the name and location info, but it isn’t absolutely necessary.