Mp 5500 Sc 552

[slim]

Have alot of these models kicking these codes even after replacing the updated thermofuses and thermostats. Tried newest firmware. Anybody else having this problem.

[paulg]

Had the problem but seems to go if the thermistors and thermostats (all three of them) replaced as a set.

[TonerMunkeh]

SC552

Ollie1981 had a DSM675 do this.

Look at the fusing lamp cables, see if there is a little nick in one of them that is shorting to the fuser frame.

Also, as per our technician's discussion board, the drum potential sensor (WTF, I know) has caused fuser error codes before and this has been the fix.

[cobiray]

I had one that kicked me around for awhile with this code. It ended up the lamp with the white connector on the rear of the fuser was pinched in the metal cover that goes on the rear of the fuser. Took a long time to find that one.

[slim]

thanks for the info, i will take a look at the lamps

[paulg]

I had a few where had to change the lamps now you mention it.

Once you change the lamps, thermistors and thermostats there is not much left so a little expensive

[black_bird]

voltage is control 220v +-5 v replace AW11 0064 192 c, AW11 0066 212 C thermostat, clean thermostat end check sp mode 1106 fusing themperature displey center and end

[cobiray]

I forgot about that part change to the thermostats. Also, we've been replacing all 3 with the AW11 0066 model due to the higher blow temp.

[Ollie1981]

Ollie1981 had a DSM675 do this.

Look at the fusing lamp cables, see if there is a little nick in one of them that is shorting to the fuser frame.

Also, as per our technician's discussion board, the drum potential sensor (WTF, I know) has caused fuser error codes before and this has been the fix.

I think it was a DSm660, but never mind, what's 15cpm between friends eh?

From feedback I got from our in house discussion board, even the slightest nick in the sheathing can cause this, if in doubt check continuity between the top lamp and the fuser frame.

[verderacer]

This might be a incorrect observation but is the thermistor installed with the proper orientation? I had a machine some time ago that threw a thermistor error 551/552 (dont remember which) that once I turned the dang thing around it was fine.