[Error Code] SC552 / SC 552

[Guest]

Hi,
problem at Ricoh AC 3006 ( probably same: / 3506 4006 ), Fuser Error / Pressure Roller warm-up error
...
A thermistor was mechanically damaged by paper jam (but electrically apparently OK), there was a heavy blow
All connections checked all resistors (take a good ohm-meter) OK: thermistors, thermal fuses (in the cable crimped), warm-up lamp
Thermistor against a used exchanged.

it was no fault to be found anywhere

Despite repeated reset the machine does not function ..... SC552

Solution Reset (machine was not working for 2 - 3 month):
C button (yellow) + on keyboard: 107 + C-button (orange + large) long press
Then, go to the menu
scroll
Mode 5 enter
here below 810: SC Reset
Unfortunately, there is no OK
keyboard: 0 or 1 (probably 1) choosed and press #
it displays a confirmation message: run as service - etc.
Switch off the machine
Error: reset
(on some devices without a reset command: open flap + off)

…good luck ...

[fshead]

Re: SC552 / SC 552

Are you talking bout the old old ricoh color that uses the type k toner?
the one that came out b4 the b023 series 6513 copier?
now i wrk on old stuff but i havent touched one of those in 3-4 years..
do you leave the fnt door open after turning back on?
and see if closing the door still show code

[Herostrat]

Re: SC552 / SC 552

I had on BW machines mechanicaly damaged thermistors that worked in most cases but some of them simply culdn't,even if resistance is ok...I beleve it's reading higher temperature due to lack of film on it and reports abnormal teperature on hot roller.
U shuld replace that thermistor,I allways have spare ones in my toolbox just in case...for comparing at lest.

[swob]

Re: SC552 / SC 552

Are you talking bout the old old ricoh color that uses the type k toner?
the one that came out b4 the b023 series 6513 copier?
now i wrk on old stuff but i havent touched one of those in 3-4 years..
do you leave the fnt door open after turning back on?
and see if closing the door still show code

Hello,
yes this is the good old machine with K-Toner, with printing result we are glad...

No I didn't leave the door open (i'm not really sure).

[swob]

Re: SC552 / SC 552

I had on BW machines mechanicaly damaged thermistors that worked in most cases but some of them simply culdn't,even if resistance is ok...I beleve it's reading higher temperature due to lack of film on it and reports abnormal teperature on hot roller.
U shuld replace that thermistor,I allways have spare ones in my toolbox just in case...for comparing at lest.

Hello,

thank you for quick replies, the thermistore seams to work electrical well, but it's surface, witch is pulling on the surface of the drum was too rough.