How to Uninstall Canon Printer Drivers (5 Steps)

Click the 'Start' menu and launch the 'Print Management' option. If there is no 'Print Management' option in the Start menu, position your mouse pointer over 'Administrative Tools'. If the 'Print Management' option is not here, return to the 'Start' menu and type 'Print Management' in the 'Start Menu Search' function. Once the Search has located 'Print Management', launch it by double-clicking on its icon.
Click on 'Print Servers' in the left frame of the 'Print Management' window and select the appropriate print server. On most computers, there will be only one option.
Click the 'Drivers' option in the left window. This will bring up a list of all the printer drivers installed on your computer.
Right-click the Canon printer driver and select the 'Remove Driver Package' option from the drop-down menu that appears. This will remove all the drivers for your Canon printer.
Reboot your computer to complete the uninstall process.

How to Troubleshoot Computer to Printer Connections

Walk over to the printer and print a test page directly. The procedure for printing a test page will vary from model to model, so you may need to consult the user guide that came with your printer. For most network printers, you can print a test page by navigating the 'Information' menu on the control panel and choosing 'Print Configuration' from the menu. For many desktop printers, you can print a test page by holding the power button until the page begins to print. If you can print a test page from the printer, but not from the computer, you know there is a communication problem between the printer and the PC.
Remove the printer cable from the back of your printer and the back of your computer. After the cable has been removed, carefully put the cable back into place, making sure that the printer cable is tight. If your printer uses a parallel cable, be sure that it is fully seated on the back of the printer and on the computer. If you are using a USB cable for your printer, be sure that the tab is fully seated in the computer, and that the square end of the cable is firmly connected to the printer.
Power down the printer, the restart your computer. Click on the 'Start' button and choose 'Control Panel' from the menu. Double-click the 'Printers and Faxes' icon, locate your printer, right-click on it and choose 'Properties' from the menu. Click on the 'Print Test Page' button to send a test page to your printer.
Look at the network card on your network printer to see if there is good communication between the printer and the network. You should see a flashing green light on the network card. If there is no light--or if the light is amber or red--the communication is not happening. To test the network communication, remove the network cable from both the network cable and the network port on the wall, then reseat the cable and check the communication again. If the problem remains, you will need to remove and replace the printer's network card.

How to Remove the Case or Cover of a Canon InkJet Photo Printer

OK, first thing you need to know is that all Canon photo printers use simple clip mechanisms to secure the outside case to the printer body and tray-like base (which holds the ink tank, which isn't really a tank, but several blotters used to soak up the surplus ink not used in your text or photo - and there's a LOT of surplus ink!). And what you need to look for are small 'arrow' imprints at various points of the outside of the case. Those arrows are usually sitting right next to a small, rectangular opening in the case (see the pic here). These clips can be sprung by inserting a flat bladed screwdriver into the small, rectangular slot and pushing it in (or sometimes, up or down).
Where to start? Good question. And the answer depends on which model printer you're working on. Please bear with me, but because we're talking about a lot of different printers here, there are going to be a few exceptions to these generic directions. I'll try to cover as many exceptions as I can, but I'll miss a few because I haven't worked on every Canon photo printer! Usually, you'll be starting on the back of the case to remove it. But on the Pixma models, you'll need to start by removing the side-trim first - it too is marked by an arrow imprint (lift the top door, look on the top corner of the trim, and slip the screwdriver into the opening under the trim - as the trim lifts off, it will release from the remaining clips). If you have trouble with a Pixma case, see my link to Marcus's excellent directions below under Additional Resources. Once you've sprung the first clip on the back, you may need to slip a screwdriver blade into the opening of the case there, in order to keep it from snapping closed again as you try the next clip.
Once you've got the back clips sprung, look for the arrows on the sides. They should open just like the back clips did. On most models, besides there being two clips on the back, and two clips on the sides, there are also two clips on the front, but unfortunately, for whatever reason, Canon has often failed to mark these front clips as clearly as elsewhere on the case.
Where are the front clips found? Again, it depends on your model. If you're lucky, there will be arrows indicating where the clips are located - but don't depend on it! If you don't see any arrows, look for openings in the paper exit area, and for metal or plastic strips behind those openings - use your screwdriver to push those strips to spring the clips. There is also another kind of clip sometimes used in the front, and that one requires that you simply use your fingertips to move a flexible area of the case to release the clip - Marcus describes this kind of clip in his case removal instructions noted below in Additional Resources.
Once all clips are loose, the case should lift straight up and off the tray-like bottom on which the body of the printer is secured. This will give you access to any foreign objects which need to be removed, or to any paper jams deep inside the printer innards. If your intent is to clean the waste ink blotters, you are almost there - see the companion article, How To Clean the Waste Ink Tank of Your Canon Photo Printer, listed under Additional Resources.
When the time comes to put the case back on, it will simply snap back into place. Make sure that all wiring is routed back into place before trying to replace the case. Piece of cake.

How to Decipher Printer Error Codes

See if your printer has a small digital screen on the front. The error code should be in that screen. Sometimes on smaller printers it's a series of flashing lights.
Copy down what scrolls or flashes across the screen or make note of which lights are flashing.
Consult your printer user guide first. If you cannot find the error code, try online support.



Locate your error code on the list.
Check to see if your printer is out of paper if Code 11 appeared.
Pull out your printer cartridge and reinsert it if a Code 12 is present. This is an indication that something is preventing the printer door from closing completely.
Refer to your user's manual if Code 13 comes up. This is a paper jam and most printers have specific instructions for that model to clear up jams.
Notice if there's a difference of color in your print jobs if Code 16 comes up. This is often a problem with the toner in the print cartridge. Try shaking it, then reinsert it. If the problem persists, replace the cartridge.
Adjust the page margins or font type if you get a Code 20/21. You have a print job that is too large for the memory to accept. If you still have problems, call a local technician to add more memory.

How to Uninstall A Printer From Your Windows Based Computer

In order to begin uninstalling your printer, make sure that it is still plugged in so that it is recognized when you start the computer. To begin, navigate and click the 'Start' button on the bottom left corner of your desktop. Once your program menu generates, click on 'Control Panel.' Your Control Panel will open, and you should navigate to the icon for Printers. When the window populates, it will have all printers that are installed on your computer available to click on. Once you have highlighted the printer you wish to uninstall, click on the 'Delete Printer' button.
A new window will pop up asking you 'Are you Sure You Want To Delete This Printer?' If you are certain you no longer want this installed on your computer, click 'Yes.' A new window for 'Wise Install Wizard will open.' This gives you the name of the printer you are going to uninstall in the middle section of the window, as well as options to 'Repair' or 'Cancel.' If you are only having problems with your printer, it is suggested that you hit the bubble next to 'Repair' and continue from here. If you indeed wish to uninstall, click the bubble next to 'Uninstal'l and then hit 'Next.'
The window moves to the next step in the process for you. This new window asks you if you would like to uninstall all related files for this printer including saved updates. Click on 'Yes,' because without the printer installed, the updates for the printer are only using up space on your hard drive.
A new window will open showing the progress of your command. You will see a progress bar in Vista or files moving from one folder to another in XP. The time needed to complete the process is shown in the middle portion of the window underneath the progress bar. Depending on the speed of your processor, this can take as little as 15 seconds and as much as two minutes. Once the process is complete, a new window will open saying 'Uninstall Complete.' You then want to click on the 'Close' button on the bottom right of this box to close it.
Any time you uninstall a program from your computer, it is recommended that you restart for the changes to take effect. Newer computers always have a pop up box that will open as soon as the uninstall is complete, alerting you for the need to restart. Click on 'Restart Now.'
If your computer is an older model, you may have to manually restart your system. In order to do so, navigate to and click on your 'Start' button on the bottom left corner of your desktop. In Vista, click on the power button that is located at the bottom of your program menu, and then hit 'Restart.' Using XP, open your Start Up Menu, and navigate to your power options. Click on 'Restart,' and your computer will begin to shut down. Once it restarts, the changes you specified during the uninstall process will take effect, and your printer is now removed from your computer.

How to Clear the Print Spooler (10 Steps)

Right-click on 'Computer' or 'My Computer' and a drop-down menu will appear. Click on 'Manage.'
Click on 'Services and Applications' and then click on 'Services' to view all the services on your computer.
Scroll down to 'Print Spooler' and right-click on it. A drop-down menu will appear, on which you will click on 'Stop' to temporarily halt the service.
Shrink the window and click on 'Computer' or 'My Computer.'
Click on the primary hard drive on the computer, which is normally the '(C:)' drive.
Click on the 'Windows' folder.
Click on the 'System32' folder.
Click on the 'Spool' folder and the 'Printers' folder inside it to view the print jobs you want to clear.
Press the 'Ctrl' key and the 'A' key simultaneously to select everything and press the 'Delete' key to clear the Print Spooler. Close the window.
Restore the 'Services' window, right-click on 'Print Spooler' and click on 'Start' so your printer can schedule print jobs again.

How to Troubleshoot an HP 1510 Printer

Check to make sure that the power cord is securely plugged into an active wall outlet if your printer is not turning on.
Make sure that the USB cable connecting your computer to your printer is securely connected if your printer powers on but will not perform a print job.
Remove a paper jam if the 'Check Paper' light on the front of the printer is blinking. To do this, first turn off the printer and unplug the power cord from the printer. Open the front cartridge door and locate the jammed paper. Gently pull the jammed paper toward you. Plug the printer back in and turn it back on.
Connect your printer to a different USB port on your computer if you are experiencing slow printing. The slowness could be due to a connection problem with your computer's USB port. After you've switched the port, try your print job again.
Make sure that a phone line is securely connected from a phone jack to your printer if you are having trouble sending or receiving faxes.
Clean the scanner surface if your scans are blurry or have vertical white or black lines. To do this, spray the a soft, lint-free cloth with a mild glass cleaner. Wipe the scanner glass with the cloth and then dry it with another clean lint-free cloth.
Hard reset the printer if you are having trouble solving your problem. Turn the printer off and remove the power cord from the wall outlet. Wait at least 15 seconds and plug the cord back in. Power the printer on and try your job again.
Restart your computer if you can't solve your printing or scanning job. Sometimes restarting the computer can solve an unseen problem.