IBM 4247-003 Maintenance Manual - Page 217
Bidirectional Adjustment Printout, s printed on one
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T&D16 - Bidirectional Adjustment Test Note: This test allows the bidirectional adjustment to be made from the operator panel. 1. Display: T&D16 Bidirectional Adjustment Test RUN TEST ? YES END NO 2. Press the Line Feed key. If the following message displays, go to "T&D11 - Pinch Roller/Sensor Tune/Ribbon Feed and Lift Motors" on page 208. T&D16 Bidirectional Adjustment Test STORED PINCH XXXXX PRESS A KEY Return here after the sensors are tuned. 3. If fanfold paper is not loaded, display: T&D16 Bidirectional Adjustment Test LOAD PAPER 4. Install fanfold paper on the tractor assembly, and press the Load/Eject key. 5. Six blocks of Hs will be printed with a number in the middle and a line of Hs and Is printed on one line. Next, the paper will feed to a position for viewing. Note the vertical alignment of the Is on the Hs in the last line. Use an H and an I in the center of the line for this check and adjustment. 0 Use Center Characters Figure 22. Bidirectional Adjustment Printout The alignment is correct if the x (a 1 for Model 001 and Model 003 or a 2 for Model 002) appears in the center of the Hs. Chapter 2. Diagnostics 217
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