Calling all Konica Minolta gurus. I replaced th2 and reset dipsw3-1 to 0 yesterday with no success. I'm going back to recheck my work and test thermostats and lamps. Anyone with experience on these beasts, can you give me some pointers or usual fixes for this problem. Thanks. (All I have is a manual from 2012 which I've found out is wrong and outdated.)
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Re: 951 with c-3905
Ok C-3905 describes a abnormality with TH1.
Test your lamps and connectors first L1 and L2 . Even dirty lamps could cause this.
Check TH1 for abnormality.
If not those then reseat connectors on the PRCB and ACDB.
Otherwise replace PRCB or ACDB.
Check the end connector behind the fuser and on the main body for damage. there is a frustrating shutter closing off the connector on the main body if the ADU is not inplace. I remove it but the bracket must be reinstalled to insure the right spacing.
AllanWhatever -
Re: 951 with c-3905
I too am suffering this code.....
carried out the above to no avail:
Checked stats, lamps, replaced all t/h's tested all but had them to replace.
To no avail.
checked all connections in the rear and to pcb .
Lamps turn on x3
I suspect the prcb as i have lamps which would rule out the acdb.
Next plan is to try a complete working fuser from another machine.
Any thoughts appreciated.Comment
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Re: 951 with c-3905
If its B951 also check the auxillary roller, had that on a machine a year ago
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Re: 951 with c-3905
I don't know if it's true, but I've heard that these machines can actually run with a blown lamp, they just keep slipping back into warmup cycle in the middle of print jobs. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: 951 with c-3905
yes same with 920s they will take 15 minutes to warm up and then run, pause and then keep running...
I rule of thumb lamps with over 3mil we replace if issues like this arise.Comment
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Re: 951 with c-3905
Its also easy to be fooled by a visual check on the upper roller lamps. You get a reflection from the good lamp on to the bad one which makes both of them look ok.
A continuity test of the lamps is the only foolproof way to check them.
I'm speaking from experience here
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