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From: Jolly Roger <jollyroger@pobox.com>
Newsgroups: uk.comp.sys.mac,comp.sys.mac.apps
Subject: Re: Canon scanner and Mavericks
Followup-To: comp.sys.mac.apps
Date: 3 Feb 2014 14:01:09 GMT
Organization: People for the Ethical Treatment of Pirates
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On 2014-02-03, Peter James <pfj@doesn't.exist.com> wrote:
> I am running an iMac with a 3.33GHz Core 2 duo processor, 8 gig memory
> and a CanonLide 200 scanner.  All software is up to date from Apple and
> Canon.
>
> I'm having terrible problems with the scanner not working or working
> intermittently.
>
> Very often in attempting to scan using preview or Image Capture I'm told
> that there is no scanner connected, even when the scanner is shown in
> System Preferences.
> I did manage to get the scanner working via Photoshop Elements for a
> while, but that has stopped now.  Elements tells me there is no scanner
> present.  

Is the scanner USB cable plugged directly into the computer, or is it
plugged into a USB hub? If the cable is connected directly to
the computer, which USB port is the scanner plugged into?

Next time it tells you no scanner is connected, open
/Applications/Utilities/System Information and select USB on the sidebar
to view the USB deice connections on your computer. See if the scanner
appears in that listing.

It would also be good to know what, if any, messages are posted to the
system / console logs at the time of this problem. 

Viewing Crash, Console, and System Logs

To view logs on your computer, open /Applications/Utilities/Console.

NOTE: You cannot use the Console application to view the system log from
a non-administrative account. Instead, do this:

a. Open a terminal window.
b. Enter the command (where admin is the short name of an administrator
account): su admin
c. Supply the password to the admin account when prompted.
d. Enter the command: cat /var/log/system.log

If you enter these commands correctly, the system log will be displayed
in the terminal window.

The system log will usually give you an indication as to what is causing
startup and low-level issues, where the console log typically shows only
issues you experience after you are logged into your user account.

Feel free to post *relevant portions* (only entries that are time
stamped around the time of the occurrence) of the logs here if you need
help understanding them. We'll be glad to take a look and tell you what
we see.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR