Mpc 2550 error sc 400

[copyaction]

I had same thing today on an MPC2050, removed ITB and cleaned plate and sensors but there was not much toner on them.
After that I ran SP3324-003 and it was “0”.
Checking history there were 2 prior SC 400 codes this week.
If it comes back again is next step to replace sensors?

[redneckstylin]

Ah yes the flaw of the c2050 open side door,remove black plastic cover over id sensors above reg roller i think 2 screws 1 phillips 1 nut driver and clean those id sensors power machine back on and you will be good to go till someone sweeps the room again lol

[Polarbear]

Sc 400 is also caused on these models by a blocked exhaust fan filter (check the one one the back cover right behind the fusing section). Also there is a motor assembly on the front right (behind the L - shaped light brown inner cover.) If this is not lubricated it also causes the same Sc and changing the I'd sensor board would not fix that.

[lef3pap]

thank you all for your answers.problem is solved by replacing one of the 3 sensors which was a mess and couldn't be cleaned.Have a nice day all of you!