Canon Multipass L6000 - MPSERVICE.EXE at 100% CPU Cycles

Archived from groups: comp.periphs.printers (More info?)

This might be related.
http://support.microsoft.com/default.aspx?scid=kb;en-us;318273

But I'm an idiot... :-|

Good luck!

mchiles wrote:
> Hello
>
> I am having a problem with the Canon MPSERVICE.exe software causing my
> laptop to go to 100% CPU cycles when the printer is unplugged from the
> computer.
>
> I have a fairly new Dell Inspiron 8500 Laptop running Microsoft
> Windows XP PRO with the SP2 upgrade.
>
> I also have a Canon Multipass L6000 Laser Fax/Printer/Copier/Scanner
> that I have begun traveling with in order that I can have fast and
> high quality laser printing and faxing and copying in my hotel room.
>
> I downloaded the latest L6000.EXE XP software from the Canon website
> and installed both setup.exe and setup2.exe as instructed and the
> installation worked fine and the printer works great and CPU cycles
> are normally low (about 3%).
>
> However, as soon as I disconnect the Canon L6000 Laser Fax/Printer
> from the laptop's parallel port to use the computer in places other
> than in my hotel room, the CPU cycles go to 100% and the systems
> grinds to a halt where it won't even download web pages.
>
> Using MSCONFIG, I have been able to isolate that the problem as
> definitely being caused by Canon's MPSERVICE.exe
>
> In MSCONFIG, if I disable MPSERVICE and reboot the computer without
> the printer, the CPU cycles are normal. However, to print, I have to
> go into MSCONFIG and enable MPSERVICE again and reboot the laptop
> again with the printer attached to the parallel port. Otherwise, the
> Canon Multipass software gets an fatal error due to MPSERVICE not
> loaded.
>
> Additionally, when I want to take the laptop mobile again, I have to
> go into MSCONFIG again and disable MPSERVICE again and reboot the
> computer again without the printer attached. Otherwise, if there is no
> printer attached and MPSERVICE is loaded from the Windows XP "startup"
> list, the system bogs down to a crawl
>
> I have seen posts on this and other internet printer driver forums
> that state that MPSERVICE is a known CPU "HOG" when the Canon printers
> are disconnected from the printer ports and that Canon is aware of the
> issue and has an XP SP2 fix or "patch" for MPSERVICE.exe.
>
> I have not been able to find the XP SP2 fix for Canon MPSERVICE when
> using the Canon L6000.
>
> I called Canon Customer Service today and explained the problem. They
> admitted that there is a problem with MPSERVICE on other newer Canon
> printers and have created a software "patch" fix for those printers.
>
> I was told that I was the first to call about the issue with the L6000
> and in the case that the L6000 being an older printer, they presently
> do not plan to offer a software patch to fix the problem. Due in part
> to a perceived low installed base of the L6000 printers and that few
> customers disconnect their Canon printers from the computer after the
> Canon Multipass software has been installed.
>
> Canon did gave me an additional workaround that prevents me from
> having to reboot the computer all the time. From Control Panel /
> Administrative Tools / Services: Set MPSERVICE to a "MANUAL" Load and
> then manually "START" MPSERVICE when I want to print and then manually
> "STOP" MPSERVICE when I want to disconnect the printer. It is a
> "techie" workaround, and hard to explain to a "non-techie", but easier
> and quicker than changing MSCONFIG and rebooting all the time.
>
> Perhaps if you and/or someone you know is still using a Canon L6000,
> you may want weigh the pros and cons of upgrading to Windows XP SP2.
>
> However, I still think the benefits of SP2 are worth the inconvenience
> of the issues of the Canon printer software.
>
> Perhaps, if enough people call Canon Customer Service (800-828-4040)
> and demand/request that they fix MPSERVICE for Canon L6000 printers,
> like they have for done for other newer Canon products, then we might
> get them to fix this issue so printing with the Canon L6000 Laser
> Fax/Printer can be 'easy' again.
>
> This may also be an issue with the similar Canon L4500IF Laser
> Fax/Printer.
>
> Thank you in advance for your replies and responses.
>
> Mark
>


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Archived from groups: comp.periphs.printers (More info?)

Thanks for the reply...

But, Sorry... It is not the same issue.. Although it is
interesting...

That's a whole 'nother issue....

In trying to get the Canon MPSERVICE to work correctly I tried several
ways of hooking up the printer including using a USB to Parallel
printer cable to the L6000. The Canon Multipass software for the
L6000 only seems to work correctly when the L6000 printer is hooked to
the parallel port using a parallel cable that is never removed.

Thanks,

Mark

Unfortunately, mpservice.exe is poorly written. I like to turn off my printer when not in use.

I simply change the service to manual and start it when I need to print, and stop if after. Start -> Control Panel -> Administrative Tools -> Services -> MPService

And I took the Canon MP Status Monitor out of startup as well.

This may be the issue, not certain.

Go under your list of printers and see if you have any outstanding print jobs in the queue of a disconnected printer.

This is a fairly common issue that I've seen. You get a new printer and disconnect the old printer, accidently print to the old printer, and leave junk print jobs in its queue. For some reason this can cause your CPU util to max out, as I'm guessing these print jobs keep getting retried.

You'll want to delete the print jobs in the queue of any disconnected printer, and then delete the printer. It might take a reboot after this, but it seems to clear the 100% CPU utilization.



Hope that helps.

Ack, old thread, but still an issue that crops up. I'm usually good about looking at the dates on these posts.. lol.