SC-990= Hardrive???
Thanks!!!
Thanks!!!
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SC-990 = drum unit???Comment
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Dirty ID sensor or OPC.Comment
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I've also had a duff laser unit cause this. LD power settings had gone stupidly high, drum had only done 7k.It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.
Hit it.Comment
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I think it depends of the situation when occurs.
You can try to find answers here searching for SC990:
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After contacting my company for PCB repair it has been confirmed that SC-990 is a HDD problem not OPC.
Thanks!!!Comment
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From memory, SC990 is a "software performance error" and can occur when any reading goes out of spec. This is often associated with overtoning / dirty machines. It can be caused by dirty laser diodes causing the laser power to max out and (apparently) worn drums causing charge voltages etc to exceed the maximum rating. I doubt the HDD is the cause.Comment
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Front door switches (above fuser), Drum, Drum ground shaft and last but not least Laser.
I had one of the Gestetner models of this macine doing the 990 code.
When i replaced these items in order (one at a time) it would work for a while befor the code came back. The laser power would always max out and the code would be SC990. The last item to be replaced was the laser and I have not had the code since (about 6 months).
Any of these items can cause it, I have not seen a hard drive cause it.
Hope this helps
CameronComment
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Sorry I forgot FIRST thing to try is a complete PM. Especially if the machine is dirty or over toning.
CameronComment
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I have same problem with A2045. Sometimes clearing memory helps.
But not in my case. Can you please send me a SM on matabg@gmail.com
Somewhere in service mode you can see what is causing SC990
Counters (board), drum or laserComment
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What a crap machine.Comment
...Thanks
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