We had a machine just recently where literally all we did was clean the drum unit out and checked over the dev unit and the dreaded c2557 code appeared....
Unfortunately to clear it we had to chuck decent dev in the process then run F8. On these forums people mention that manually changing the Sensor Gain can let you switch units I'm just wondering to what success and how hard it actually is ?
Obviously changing the sensor gain is just to fool the machine into thinking the t/c ratio is good so you can pull toner from the dev unit but in the end you always have to get a good F8 result for long term usage ?
ATDC Sensor Gain is this just controlling the voltage to the atdc sensor ? just to help understand what is happening by changing this value.
If you had two machines and you knew the gain value could you in theory swap the units round ?
And can you do an auto toner supply on these ?
Thanks massively for any help with this evil code,
Mike
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