IBM 4230 User Guide - Page 274
Print Quality and Ribbon Problems
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Print Quality and Ribbon Problems Problem: Unreadable characters 1: The ribbon is dry or worn. Solution: Check the ribbon and replace it if it is dry or worn. 2: The Automatic Forms Thickness Adjustment (AFTA) setting needs to be changed. Solution: See the procedure for adjusting the forms thickness setting through the operator panel (based on your forms device) in Chapter 1, "Setting Up the 4230 Printer." Problem: Missing dots or irregular characters 1: The Automatic Forms Thickness Adjustment (AFTA) setting needs to be changed. Solution: See the procedure for adjusting the forms thickness setting through the operator panel (based on your forms device) in Chapter 1, "Setting Up the 4230 Printer." 2: The ribbon is worn. Solution: Check the ribbon for wear; replace it if necessary. 3: The ribbon is twisted or folded. Solution: Straighten the ribbon. 4: The forms device is not seated correctly. Solution: Check the forms device installation. See Chapter 1, "Setting Up the 4230 Printer." 5: The print head or printer is failing. Solution: Do the printer test. See Chapter 5, "Using the Operator Print Tests." If your print head is defective, call for service. B-44 User's Guide