I have a 820 that will come up from low power with no problem.But when it comes up from sleep mode it just stays at the kyrocera screen and does nothing.The only way to get it to clear is to turn the main power off and on.Machine runs fine.Customer wants it right.formatted harddrive and reloaded firmware.No help.Any ideas?

Can you just turn off auto-sleep and let it just go to energy saver?

I have a real winner customer.I told them that but when you hit the power button it puts it to sleep.I put a note over the button and they said no!I have already replaced main board.no help.gonna try panel.may just unsolder power button.lol

Changed control panel.called hotline.no help.going now going for engine board.any ideas?

Have you thought about downgrading the firmware, just for kicks? =^..^=

devdump..i wil start by formatting the HD on sim 024..it seems some sectors on that hd are corrupted...its strange but the program will not run good if the hd is not running properly then execute firmware...still not please run sim 021..good luck buddy..


DUMMIETEK...residual income for you...

Formatted 3 times.result 000.good.did scandisk also.good idea about sim.21.will try tomorrow.may do 20 too.also I am going for engine board after that.I tried the fuser too thinking it may be a lamp issue from a dead start.no luck with that.

Did sim.20&21. No change.called hotline.tried diff.power outlet with same 820.no help.I have not tried engine board yet.any ideas? E-prom? Thanks guys

devdump..did u try to upgrade the firmware on the print pcb only..just curious?



DUMMIETEK...i suspect...false judgement...

No.I removed print system.no change.thanks.

Just replaced harddrive and engine board.still no help. I have a task 820 at my office I have been taking stuff off for troubleshooting.One thing I noticed was that when it comes out of the sleep mode I don't see any response from the optics.compared to another machine.This machine the scanner doesn't find home and the lamp does not come on??hmmm?but again it you turn it on with the main power it comes on and works fine.

Rep. helped us. Power supply fixed it.Never would have known!

Glad this helped you I had a problem with a taskalfa 420i doing same thing replaced power supple and hdd still wouldnt work end up replacing the 2 ribbon cables that connect the hdd and it solved the problem.