Hi ccl,
Pelase try reinstalling your PIXMA MP495. To do this, please disconnect the USB cable from the PIXMA MP495 and follow these steps:
1. Put the PIXMA MP495's CDROM in the CDROM drive. If the welcome screen appears, exit it.
2. Click on Start and then Run. If Run is not in your Start menu, please follow these steps to add it:
2-1. Click Start.
2-2. Right click the Start menu and left click on Properties.
2-3. Click on the Customize button next to 'Start Menu'.
2-4. In the Customize Start Menu window, place a checkmark next to 'Run Command'.
2-5. Click OK in the Customize Start Menu window.
2-6. Click OK in the Properties window.
3. Click Browse. In the Browse window, click on "Computer".
4. Double click the CANON_IJ CDROM.
5. Double click the folder named WIN.
6. Double click the folder named Driver.
7. Double click the folder named DrvSetup.
8. Double click the file named DELDRV. If you are using the 64 bit version of Windows 7, please double click DELDRV64.
9. In the Run box click OK and follow the on-screen prompts to uninstall the driver.
Once the PIXMA MP495 has been uninstalled, restart the computer.
When the computer restarts, we will install yoiur PIXMA MP495 again:
1. Click on Start and then Run.
2. Click Browse. In the Browse window, click on "Computer".
3. Double click the CANON_IJ CDROM.
4. Double click the folder named WIN.
5. Double click the folder named Driver.
6. Double click the folder named DrvSetup.
7. Double click the file named SETUP. If you are using the 64 bit version of Windows 7, please double click SETUP64.
8. In the Run box click OK. Files will extract, the box will disappear.
9. Reconnect the USB cable from the PIXMA MP495 to the computer.
The computer will recognize and install the PIXMA MP495.
Once your PIXMA MP495 is reinstalled, please attempt to print.
If you continue to have difficulties, please contact our support group using the following link:
http://www.usa.canon.com/cusa/consumer/standard_display/contact_us_consumer
