Ricoh Ri 4000 User Manual page 235

9. Troubleshooting Guide
Press [ENHANCER] and [INK].
Press [CLEANING].
The carriage moves to the center position.
Turn off the machine.
If you cannot turn off the machine, turn off the main power switch.
Proceed to page 236, "Checking the carriage position".
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RICOH Ri 4000 User Manual