MP C4501 not waking up

[Staggan]

Hello

I have an MP C4501 that is refusing to wake up after going to sleep...

First thing I did was update firmware, which made no difference.

Then I replaced the control panel, checked connections to control panel and BCU etc.. but still no joy.

Anyone have any suggestions before I try BCU ?

Could it be power supply perhaps?

Thanks

[Cipher]

Assuming you have updated the PowerSaving Sys to F.19, try disabling STR (Suspend-to-RAM), cycle the power off / on and give it a test.

SP 5191-001 to 0

[Staggan]

Hello Cipher

Thanks for the suggestion.. that seems to have resolved it.

What is the reasoning behind this causing a problem?

Thanks

[Cipher]

STR has been known to be a little bit temperamental on some Ricoh controllers depending on the peripheral configuration.
Sometimes a firmware update can fix it, but the workaround is just to disable the feature which is enabled by default.

[Staggan]

Thanks for the update, machine now seems fine.

I'll add this to our list of issues we've not seen for future reference.

Thanks again.