IBM 4230 User Guide - Page 205

The printer then displays Top of Form Alignment Press ENTER to Reprint 4. If the H's do not print where you want your top of form position, you can adjust the setting with the following keys: Line Feed Advance form 4.23 mm (0.17 in.) Micro ↑ Advance form 0.35 mm (0.0139 in.) Micro ↓ Move form backward 0.35 mm (0.0139 in.). 5. After you have made an adjustment, press Enter to print the H's again on the same page, or press Form Feed (Load/Eject for the F3 or F4 forms devices) and then Enter to print the H's at the new top of form position on the next page. 6. Repeat Steps 4 and 5 until the top of form position is where you want it. 7. Press Set Top of Form to set the new top of form position. The alarm beeps and the printer displays TOP OF FORM SET 8. Press Cancel Print to exit the test and make the printer ready. Press Stop to exit the test and return to the Test Menu (see "General Test Instructions" on page 5-1). Note: The top of form position can be adjusted without printing the row of H's. See the appropriate section for your forms device on setting the top of form position. Chapter 5. Tests 5-5