IBM 4247 Maintenance Information page 174

3. Park the paper.
4. Set the operator menu to FIXED=1.
5. Load a single-sheet of paper into the print area. Note the wheel position.
6. The wheel position should be the same for AFTA=0 and FIXED=1 within ±0.25.
7. The wheel should be pointing to 1 ±0.25.
8. Verify printer operation by printing T&D14 on single-part forms, using a good ribbon. The print should appear
dark.
T&D13 - Not Used
Press the Micro key to bypass this message.
T&D14 - Fanfold Form Printout Test
Use this test to check print quality, print wires, printhead wire shifter, carrier movement, paper feed, line skew,
code level, and bidirectional (vertical) alignment. See "Print Quality Checks" on page 338 for a list of symptoms
and Figure 93 on page 342 for print samples.
If the following message displays, go to "T&D11 - Pinch Roller Status/Sensor Tuning/Ribbon Feed and Lift Motors"
on page 168.
PINCH XXXXX
Note: XXXXX is CLOSE or OPEN.
Return here after the following message displays.
SENSOR TUNED
If the following message displays, continue with the next step.
LOAD PAPER
1. Install fanfold paper in the tractor assembly, and press the Load/Form Feed key.
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Chapter 2. Diagnostics