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How do I set the fusing unit correctly? - Ricoh 4506 Copier

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How to fix the Error: "Set the Fusing Unit correctly"
Ricoh Aficio SP C411DN & C410DN Color Laser Printers
1. There is a short Wire Jumper (color: black or white) on the inside of the main electrical connector of the Fuser Unit.
Note: These procedures can be done without removing the outer plastic housing of the Fuser Unit.
2. Press the side clip (or tab) and first pull the tab end of the large connector plug from the main housing of the Fuser Unit.
Warning: The connector plug wires are very short -- it extends a maximum of about 1 inch (or 2 cm) from the main housing of the Fuser Unit.
3. Use a small screwdriver and gently remove the small white connector that the Wire Jumper is plugged into.
Warning: Try to remember the correct orientation that this small connector is plug-in.
4. Use a small screwdriver (or a small flat blade) and gently raise the small tabs on the front of the small connector, while pulling gently on each end of the Wire Jumper.
Warning: Do not remove Wire Jumper forcefully by pulling.
5. Make sure that this Wire Jumper is plugged into the same pins as the one on the old Fuser Unit that is being replaced. There are only three pins that the jumper can plug into.
6. Reassembly the Fuser Unit by plugging in the two connector that were removed.
7. Replace the Fuser Unit into the Ricoh printer and secure properly.
8. Power on the printer -- it should start-up and go to the ready state without any errors.
9. The END.

Posted on Jul 15, 2017


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Posted on Jan 02, 2017


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The fusing belt sensor does not detect change in the actuator for 0.5
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Check the fusing unit for correct installation
Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary.
Change fusing unit
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• At the warm-up stage, the heating roller
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Check the fusing unit for correct installation
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Check the open/close operation of the
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Check the fusing unit, IHPU, PRCB and
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1. Turn OFF the Main Power Switch.
2. Turn Main Power Switch ON while pressing the Utility/Counter key.
3. Touch [Trouble Reset].
4. Check to make sure that [OK] is displayed and the it has been reset.
5. After turning off the Main Power Switch, turn it on again more than 10 seconds after and check if the machine starts correctly.
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2 Check the Fusing Unit, PWB-M and PU1 for proper connection and correct or change as necessary.
3 Change Fusing Unit
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