Question about Ricoh Aficio Colour 3006 Color Copier

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Ricoh CL 7000 error code SC 387

Read out states: SC 387 error- how do we correct this as the copier does not respond to any command, even after shut off/power on.

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  • VAN CO TRINH May 20, 2008

    Thank you. Before receiving your solution, I replaced the yellow toner and it solved my problem. But it is very helpful regarding the Develpment and Drum unit. vanco

  • kelay Sep 05, 2008

    dumping yellow toner not transfering on toi drum


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  • 14 Answers

This Code relates to color gamma error in the Yellow development. Possible causes Low toner density in the Y toner,Toner supply Y mechanism problem( not supplying enough toner),Laser exposure problem, image transfer problem. My suggestion would be to ensure you have toner in the cartridge( but by this time it has depleted the developer), and you will need to replace the development unit and possibly the drum Unit. My best guess would be the development Unit.


Posted on May 20, 2008

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SC No. Item Definition Possible Cause Related
SCs Troubleshooting Procedure Type
SC 221 Synch.
detection signal
error 2
221-001: Y
221-002: M
221-003: C
221-004: K
Main scan length detection is
not properly completed ten
consecutive times.
The front (for C&M) or rear (for
K&Y) laser synchronizing
detector boards are used for
the main scan length
detection, which automatically
corrects the main-scan
• Damaged or
disconnected cable
between front (C&M)
or rear (K&Y) laser
detector board and
the LD unit
• Incorrect installation
of front (C&M) or rear
(K&Y) synchronizing
detector board (the
beam does not target
the photo detector.)
• Defective front (C&M)
or rear (K&Y)
detector board
• Defective LD unit
After doing any of the following, print ten
jobs or more to see if the same SC code
is displayed:
1. Turn the main switch off and on.
2. Check or replace the cable
connecting front (for C&M) or rear (for
K&Y) synchronizing detector board
and the LD unit.
3. Check or reinstall the front (for C&M)
or rear (for K&Y) synchronizing
detector board.
4. Replace the front (for C&M) or rear
(for K&Y) synchronizing detector
5. Replace the laser optics housing unit.
6. Replace the BCU.
If a synch. detector board cannot be
replaced, do the following as a
temporary measure:
• Disable main scan length detection

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Please let me know and rate solution :)

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If the code is displayed on the screen, physically TURN OFF the copier with the main switch (red switch), wait 10 seconds and turn it back on. If it's an erroneous error, this should reset the error code. NOTE: THE ERROR CODE MUST BE DISPLAYED FOR THIS TO WORK.

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Ricoh 3006

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fusing roller if this is not the case replace the thermistor;
Good luck

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