[Error Code] mx2640 f2-78

[ash_572]

I have a sharp mx2640 with an error code of f2-78. colour registration is also out.

I have cleaned the ID sensors and replaced the transfer belt. colour density is very strong.

following sims tried and failed.

sim 44-02 pcs_F LED ADJ error, R LED ADJ error.
sim 50-22 ERROR ; SENSOR CALIBRATION F 04


I have tried using the special tool in sim but sim 44-13 does not exist.

firmware is upto date.

please advise

[moose55]

Re: mx2640 f2-78

Just saying this to cover myself...make sure the ID sensor is completely clean! Next I would try a different (or at least rebuild) primary transfer unit. It may ultimately be an LSU.

[copiertec]

Re: mx2640 f2-78

Agreed with moose55, try cleaning the sensor again and a different transfer belt first. Next, per service manual, replace the image density (registration) sensor, next service manual is saying to replace PCU PWB.

[ash_572]

Re: mx2640 f2-78

Just saying this to cover myself...make sure the ID sensor is completely clean! Next I would try a different (or at least rebuild) primary transfer unit. It may ultimately be an LSU.

Hi

i have cleaned the ID sensors and replaced the primary transfer belt and still the same. I will order some ID sensors

[OlliK1969]

Re: mx2640 f2-78

Hi
clean ccd and please clean the color registration sensor ( incl. gray field)
44-2
50-22 all near 0.0

44-6
44-26
restart
46-74
restart

[repn1999]

Re: mx2640 f2-78

I assume you stopped the machine and looked at the image on the belt before doing any more troubleshooting to see if the image is screwed up there. I am also assuming you have updated the firmware to v6.0 which is the current level. There was a firmware update to reduce the occurence of F2-XX codes. I have seen bad density sensors on these machines before. I have also seen a bad belt unit cause this which you already replaced. I have also seen machines that were too far out of adjustment cause this issue. When I see these errors I usually set everything in 50-20 to default and try the whole process again. if 50-22 fails I bypass it and complete 44-6 and 26 and then try 50-22 again and this usually fixes it. That being said......make sure to only clean the density sensors with alcohol and a clean white rag. check all of the drums to make sure none of them are hard to turn or make noise when you turn them. I had a tech who was getting this error and it was solely because he didnt powder the damn drums and blades very well.

[tonasis]

[ash_572]

Re: mx2640 f2-78

[tonasis]

Re: mx2640 f2-78

[ash_572]

Re: mx2640 f2-78

Could also be the transfer belt worn.