Shared network printer drops offline

I have one network printer (out of 15 or so) that keeps dropping offline.  If I restart the spooler it will come online for about 30-45 seconds, just enough to push the documents in the queue out.  None of my other pritners are having an issue.

Server is W2k3, printer is Canon iR3570.  Has been working fine for 2 months since moved to server, previous print server had no issues for 4 years.

EDIT: Option to "Use Printer Offline" is not checked.
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Kyle AbrahamsSenior .Net DeveloperCommented:
Any other printers attached to that server?  Is the same happening with other printers?

(wondering if it's the spooler service?)  Also does the R3570 have any kind of powersaving?  

Any TS issues or just printing using a shared printer?
benharAuthor Commented:
Yes others are attached. No the same is not happening.  Yes it does have powersaving, but it's not in a powersave mode when happening.  TS, do you mean terminal services?  No.

This is not a directly attached printer, so I'm wondering if it is the network card on the Canon.
Will SzymkowskiSenior Solution ArchitectCommented:
Hello there,

This has happened where I work not too long ago. The fix for us was logging into the server and removing any cached printers from remote connections. These virtual cached printers (that were from another user) were killing the spooler service.

Another thing you might want to check is make sure that the printer is well cleaned out. We had another printer do the same thing and we had no idea what was wrong but we knew it was filthy. We sprayed it with some compressed air and once it was cleaned up it started working. Sometimes the sensors can be very sensitive.

Give that a shot
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benharAuthor Commented:
Removing the cached printers didn't help and I don't think it's a cleanliness issue since I'm able to access the web UI fine.

I did remove it from the server and installed it on a different one (the old print server) and it is staying at Ready status just fine.
Kyle AbrahamsSenior .Net DeveloperCommented:
I would try deleting the printer, from the new server, then re-add with most updated drivers.  Any differences between old print server and this one?
benharAuthor Commented:
Did that already.

Old server is 2000, the new 2003. I'm using the same driver on both (just downloaded it today).

I do have another Canon copier/printer, different model, on the server and it is fine.
benharAuthor Commented:
Issue resolved.  Turns out SNMP on the port settings on the properties page was on and that was causing erroneous traps.  Turned it off and voila!

Should I delete this question or should it remain for future user's problems?

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Kyle AbrahamsSenior .Net DeveloperCommented:
Accept your own solution.  Always helps to have another thing to check.
Benhar!   This was an excellent fix to an all to common Windows/HP/Canon Printer problem for me and certainly many others.  However, could you please post exactly what you changed on the SNMP properties or confirm you just disabled them completely.   If disabled, what is the impact of disabling this SNMP setting, will the PC never know if the printer is actually there online or offline after that settings is disabled?
I had the same issue, Benhar solution was very helpfull
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Windows Server 2003

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