Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

[tonerjockey]

Hi guys, hope you are all safe this new year.

i am having an issue with this unit. wide format. customer had two issues. it had a waste sump full indication which i dumped. then it shows an error SC300-01. i pulled the drum unit out, blew out the charge and transfer corona units. they look good. same thing.
i searched for a long time in service mode trying to find a clear error code. i looked for SP5-810, but that number isn't there.


also tried service mode and hitting SP and rebooting.


i am wondering if this error code needs a service mode entry to clear it, or if it resets assuming that the issue is gone, by s a simple reboot?

the code is for a charge corona feedback voltage loss.


has anyone got any experience with this code?


thank you very much for any input or advice.
Jim

[slimslob]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

Only requires cycling the power once the cause of the actual cause has been repaired. From Goose's Guide

check or repl. toner door switch

Charge corona ouput error: Defective CGB power pack

Charge corona ouput error: charge corona assembly defective

Charge corona ouput error: Clear NVRAM

The corona may look fine but there can be micro fractures in the plastic end blocks that will cause leakage to ground.

[DRichard]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

I agree with slimslob about the likelihood of tiny fractures etc. As old as these are, I would try to replace the entire assy, although individual parts were available originally.

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

Thanks guys. the last line said clear NVRAM. is that required to clear this fault code, or is it just the long list of possible causes of the initial code?

anyone have a source for charge corona etc??

thanks so much.

[slimslob]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

Thanks guys. the last line said clear NVRAM. is that required to clear this fault code, or is it just the long list of possible causes of the initial code?

anyone have a source for charge corona etc??

thanks so much.

Many items in Goose's Guide are things that some other tech at one time has had to do. Clear NVRAM is a last resort operation when nothing else seems to work.

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

Only requires cycling the power once the cause of the actual cause has been repaired. From Goose's Guide

check or repl. toner door switch

Charge corona ouput error: Defective CGB power pack

Charge corona ouput error: charge corona assembly defective

Charge corona ouput error: Clear NVRAM

The corona may look fine but there can be micro fractures in the plastic end blocks that will cause leakage to ground.

ok, that is what i thought.
thank you.

[Brianneoe]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

Dont do a NV clear with out backing up the NV in SP5824. 99 times out of 100 the problem is the end blocks are shorting out. The charge unit part # is AD00 4103

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

ok thank you.

do replace the wires as well? is it hard to keep them from getting all tangled up and kinked??

i was told by Hytec that there were pico or surface mount fuses on the charge power pack. i pulled the board and found none. i tested the output and then it started working. so i fully assume that the charge end blocks are going out.

have a nice day, Jim

[luca72]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

ok thank you.

do replace the wires as well? is it hard to keep them from getting all tangled up and kinked??

i was told by Hytec that there were pico or surface mount fuses on the charge power pack. i pulled the board and found none. i tested the output and then it started working. so i fully assume that the charge end blocks are going out.

have a nice day, Jim

you can try an old trick, to make sure they are really those, give a nice brushstroke of bleach / liquid concealer, on both blocks, even inside, and then let them dry well, and try. sometimes even without micro-fractures, the plastics of the blocks are chemically cooked, years ago they even changed color, they went from yellow to orange here corona sc codes usually do not need to be deleted.in case you try, let me know if it worked.regards

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

ok, great idea. yes, back in the day the amperage was much higher, and you could see and smell the burning trace. but that was way back when the HVPS was a separate box, not small transformers on a small board inside. gets the job done, but harder to diagnose.


be safe.

[tsbservice]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

you can try an old trick, to make sure they are really those, give a nice brushstroke of bleach / liquid concealer, on both blocks, even inside, and then let them dry well, and try. sometimes even without micro-fractures, the plastics of the blocks are chemically cooked, years ago they even changed color, they went from yellow to orange here corona sc codes usually do not need to be deleted.in case you try, let me know if it worked.regards

Yes good idea. Another trick I used in Toshibas when they had Voltage leaks through end plastic terminals is to simply cut 4 small pieces of electrical tape and put them between 2 corona wires(T and S) and terminals in places when corona touches plastic terminals. Worked every time for me.
Good luck

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

30 years ago i tried the electrical tape between the end block and the aluminum housing. but never had any luck.
this machine is 20 miles away for me, and the gas support springs are shot.

i took the power pack out Friday, looked for any surface mount fuses. found none. tested the output, even felt it thru my old leads. it was listed at 6250 volts. then reconnected the charge and it suddenly came to ready and printed nicely.
so i fully expect it to code out again. and when it does, i will replace the assembly. don't want any issues.


thank you, Jim

[luca72]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

30 years ago i tried the electrical tape between the end block and the aluminum housing. but never had any luck.
this machine is 20 miles away for me, and the gas support springs are shot.

i took the power pack out Friday, looked for any surface mount fuses. found none. tested the output, even felt it thru my old leads. it was listed at 6250 volts. then reconnected the charge and it suddenly came to ready and printed nicely.
so i fully expect it to code out again. and when it does, i will replace the assembly. don't want any issues.


thank you, Jim

let's say, it's been a couple of years that I have no problems with the corona (LOL) .. maybe because I replace it when it is not too old (?) if that family of sc codes happens to me, I already go there with a completely rebuilt unit, however I would be curious to try this:

https://www.amazon.it/Isolante-Elettrico-Aerosol-liquido-Dip/dp/B01G4ABSIC

guarantee 48k volts / mm !!

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

back maybe 20 years ago, there was a couple places that sold things for us techs. one might have been called tech aid? i had found some really useful tools and liquids for cleaning etc. there was a product called??? something dope or what ever. it was a thick black goo or paste in a bottle with a brush.

it was some electrical insulator that was supposed to help this corona end block problem. it may have been for tv high voltage fly back circuit.
and maybe it would work with today's HVPS better, since they may have much lower amperage's?

i may still have it somewhere, but it never seemed to work for me.

[tonerjockey]

Re: Lanier LW 310 / aficio 240W error SC300-01 does this need a service mode reset?

I remember now.
It was called corona dope