Canon NP3030 Copier PSU problem

li_gangyi · Joined: 26 Oct 2006 Posts: 2

Hi,
As above, I have a canon NP3030 copier that has a flaky power supply, swapping the PSU with a known good 1 got the unit working again, however I would like to repair the PSU, figured the 1st thing I needed was a set of schmatics or the service manual...wondering if anyone has a copy... I've tried searching on http://www.eserviceinfo.com , but no luck...

li_gangyi · Joined: 26 Oct 2006 Posts: 2

anything anyone?

Guest · Posted: Sun Oct 29, 2006 10:31 am Post subject:

Is it a linear or a switching powersupply? Is it an internal or external supply?
If you can't find the schematic you can do some basic checks for voltage and ripple on the output, check for failing solderjoints on the circuit board and look for heat stressed components.