IBM 4230 User Guide - Page 206

Left Margin Alignment You can print a single line of text to help in setting the left margin position using the Left Margin Alignment Test. You can also change the current left margin position using this test. You can set the left margin position from 1 to 66 units (where each | unit is 0.686 mm [0.027 in.]). The factory default setting is 10. The | margin is measured starting at 1.27 mm (0.05 in.) from the center of the tractor pins for continuous forms and from the left edge of a cut form. To align the left margin position, follow these steps: 1. Enter the Operator Print Tests (see "General Test Instructions" on page 5-1). The printer displays OPERATOR PRINT TESTS Printer Demonstration 2. Press Scroll ↑ or Scroll ↓ until the printer displays OPERATOR PRINT TESTS Left Margin Alignment 3. Press Enter or Start to begin the test. The printer displays Left Margin Position ᑍ xxx where xxx is the current value of the left margin position. 5-6 User's Guide