IBM 3 User Manual page 300

CAUTION:
<2-51> The print head may get hot during operation. Be careful when removing
or replacing the ribbon.
To remove an existing ribbon cartridge, follow these steps:
1. If the printer is powered off (O), go to Step 3.
2. If the printer is powered on (|), and the Format/Online (coax) or the Online
3. Lift the cover and tilt it back to the full open position.
4. Slide the printhead to the center of the printer.
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4247 Model 003 User's Guide
(twinax) indicator is lighted, press Stop to make the printer not ready. This
indicator should now be off.