[Error Code] MP 7500 sc495

[O sentinela]

Hey ..... I have a problem with Ricoh mp7500. I put the belt on it and transfer it after the machine started to give the code sc495 .....I have checked all the connections that had been removed to install the belt correctly and they are made .... any advice?

[SCSI]

A sc495 is a toner recycling error. In the back of the machine where the transfer unit dumps the waste toner there is a sensor. Sometimes it gets dust or toner on it, also there is a gear belt that turns the recycling coil. Make sure that has not come off.

[mikadonovan]

Sc 495 is usually caused by the white recycling tubes being plugged by toner. Pull the tubes off, pull out the augers and clean them out.

[tcs04]

I'm with SCSI on this one. Remove the recycling unit and the sensor inside (top end behind the transfer unit) As a precaution, swap the sensor with the home position sensor for the front duplex jogger (same part). If the sensor is faulty it's much easier to change.

[teebee1234]

I'm with SCSI on this one. Remove the recycling unit and the sensor inside (top end behind the transfer unit) As a precaution, swap the sensor with the home position sensor for the front duplex jogger (same part). If the sensor is faulty it's much easier to change.

X2 - Item 31 is the sensor in question. Also, it's quite possible you knocked something loose/out in the recycling unit when you inserted the transfer unit back in place.
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[Problem]
SC 495 after 1 copy

[Cause]
If the toner collection coil sensor [31] does not change within 3 seconds after the drum motor turns on, then SC 495 (Toner Recycling Unit Error) is logged.

• Paper dust built up on the toner collection coil sensor [31] and /or bad sensor.
• Worn toner collection coil drive belt [1].
• The transport coil [43 & 26] maybe clogged and cannot rotate.

1. Clean and check the toner collection coil sensor [33] with SP Mode 5-803-013, bit 5 should change from 1 to 0 or 0 to 1 when SP5-804-28 (Main Motor) is turned on.
2. Check that the toner collection coil drive belt [1] is not worn allowing for proper drive of the toner collection sensor pulleys [27 & 28].
3. Check that the toner collection coil [43 & 26] is not clogged, it can cause the toner collection drive belt [1] to slip.

[1] Toner collection drive belt AA04 3945
[26] Toner collection pipe B065 3601
[27] Pulley B065 3660
[28] Shield plate B065 3652
[43] Transport screw B065 3663