Ricoh Pro C7200S Troubleshooting Manual page 543

11. Clean the sliding part (fabric part) [A] of the belt holding plate.

Use a vacuum cleaner or an air blower to remove dust.

Wipe the sensor with a wet cotton swab. If a cotton swab is not at hand, wipe the sensor with a
damp cloth. Use water if necessary, but do not use any solvent (ethanol, etc).

Do not attempt to wipe off the "black prints" on the sensors. These black prints are not
dust/dirt but are components of the sensor.
After cleaning the ITB Speed Feedback Sensor
1.
Reassemble the ITB Unit.
2.
Turn the main power switch ON.
3.
Execute the following SP

Remove the front cover of the ITB cleaning unit, and rotate both levers of the ITB cleaning unit
clockwise to retract the cleaning blades from the ITB.

Keep opening the font doors and enter the SP mode, and then execute SP2-920-001 (Steering
Control Roller- Initialize Belt Position).

After pressing the "Execute" button, close both front doors to run the above SP.

Rotate both levers of the ITB cleaning unit counter-clockwise and re-install the front cover of
the ITB cleaning unit.
4.
Execute SP2-912-001(Encoder Sn:Adj Light - Adj Light Amt).
5.
Exit the SP mode and then turn the main power switch OFF.
6.
Turn the main power switch ON and then enter the SP mode.
7.
Execute SP2-914-1 (Encoder Sn:Get 1stPhase - Get Phases:Execut All). This SP code resets the
ITB speed feedback sensor.
8.
Exit the SP mode and then turn the main power switch OFF.
9.
Turn the main power switch ON and then enter the SP mode.
10. Select SP2-915-001 (Encoder Sn Ctrl Condition - Scale FB Control Enable) and confirm that it is
set to default "1".

If SP2-915-001 is set to "0", clean the ITB Speed Feedback Sensor again.
7.Detailed Procedures of SC Occur
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