Ricoh BRG-P1 Field Service Manual page 158

4. Replacement and Adjustment
1. Dampen a small piece of clean linen cloth with a small amount of alcohol.
• Never use cotton, soft tissue, or any other type of material that could shred and leave fibers
on the encoder wheel.
2. Hold the dampened cloth [A] at the edge on both sides of the wheel.
3. Move the timing belt by hand to rotate the encoder wheel as you wipe it with a dry cloth.
4. Continue to rotate the wheel through at least 2 or 3 full turns so the entire edge of the wheel is
clean.
5. Re-attach covers and turn on the machine.
6. Confirm that the machine is in standby mode and ready to operate.
7. Do the "Nozzle Check" after cleaning, and then check the patterns.
8. Do "Print Head Cleaning" if the pattern is not satisfactory.
9. Do "Print Head Flushing" if the pattern is not satisfactory, even after three print head cleanings.
10. Do "Print-Head Flushing" and print another Nozzle Check Pattern.
11. If the Nozzle Check Pattern is still not satisfactory after flushing the print heads, replace the vertical
encoder wheel.
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