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Hello everybody.I have a tech friend who doesn't have access here and he asked my help.He has an mpc 2550ricoh machine and after one copy it shows sc 400.I followed the service manual and told him to clean the id sensor which is on the side of the machine under the belt on a small board.3 sensors which have been cleaned but it keeps showing sc 400.Any help?
Clean the I.D sensors and take off the transfer unit metal bracket with the three holes as the inside of that will probably be covered in toner as well.
Also clean the positioning sensors for the paper transfer roller cam, that can play havoc with the MUSIC adjustment pattern on the transfer belt.
where is that metal brucket with the 3 holes?
Untitled.jpg
ooops too little image.is it on the transfer belt unit?
From TSB 045:
Please follow the troubleshooting steps below to resolve an SC400 (ID Sensor Adjustment Error).
1. Check the harness of the ID sensor.
2. Clean the ID sensor with a cloth moistened with water.
NOTE: Never use alcohol, because this may damage the board.
3. Execute SP3011-001 (manual process control).
4. If the value of SP3324-003 (Vsg error counter) is NOT “0”, repeat Steps 2 and 3.
5. If the value of SP3324-003 is still NOT “0” after repeating Steps 2 and 3, check the spring for the PTR unit
contact lever. Repeat steps 3 & 4.
6. If the value of SP3324-003 is still NOT “0” replace the ID sensor. Repeat steps 3 & 4.
Notes:
1. If the black spacers are stuck to the sensor board, remove all black spacers. These black
spacers should be used when a new ID sensor board is installed.
2. Input all correction coefficients for the ID sensor with the SP modes referring to the barcode
sheet provided with the new ID sensor unit/board.
For example, input "0.98" with SP3362-013 & 016.
3. Always refer to the Service Manual for the complete part replacement procedure.
7. If the value of SP3324-003 is still NOT “0” replace the BCU. Repeat steps 3 & 4.
8. If the value of SP3324-003 is still NOT “0” replace the ITB unit.
slimslob you are from my favourite members.where did you find that?service manual says these :
ID sensor adjustment error
When the Vsg error counter reaches "3", the machine detects "SC400".
The Vsg error counter counts "1" when the Vsg detected by ID sensor is more than
the value (default: 4.5V) specified with SP3324-005 or less than the value (default:
3.5V) specified with SP3324-006.
• Dirty or defective ID sensor
• ID sensor detection surface dirty
1. Check the harness of the ID sensor.
2. Clean or replace the ID sensor.
• After replacing the ID sensor, input the ID sensor correction coefficient
with SP3362-013 and -016. For details, refer to "ID sensor board" in the
Replacement and Adjustment section.
3. Check the spring at the PTR unit contact lever. (See “PTR Unit Contact Motor”
in the chapter “Replacement and Adjustment”.)
4. Replace the BCU.
4. Appendix: Service Call Conditions
56
4No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
5. Replace the ITB unit.
It is a bit different from yours .
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2014-10-24_17-18-53.jpgOriginally Posted by lef3pap
(A)
Attachment 26911
PTR contact sensor ( green )
Technical Service Bulletin 045 is not in the manual.
NEVER ASSUME ANYTHING
You can clean these sensors without taking the ITB unit out, but it is easier to do it. You can also clean underneath the ITB unit but if you don't remove the plate (see above) the dust will vibrate back down onto the sensors.
If you clean it, reboot the machine and it returns, replace the whole ID board (save the black spacers from the previous board!).
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