Many Canon PIXMA MG7720 users encounter the frustrating issue where the printer does not detect or show the paper, even when it is properly loaded. This can bring printing tasks to a halt, whether you are working on documents for the office or printing photos at home. Fortunately, in most cases, the cause is simple and can be resolved without professional repair. Understanding the possible reasons behind this problem will help you fix it quickly and avoid repeated disruptions.

Why Won’t Paper Show in Canon PIXMA MG7720 Printer?

Empty or Misaligned Paper Tray

If the paper tray is empty or not aligned correctly, the printer may fail to recognize that paper has been loaded. Sometimes, even when paper is present, uneven stacking or improper adjustment of the paper guides can prevent the sensor from detecting it.

Incorrect Paper Size or Type

The Canon PIXMA MG7720 is designed to work with specific paper sizes and types. If you load a size that does not match the printer settings, the device may not register the paper. For example, using photo paper without selecting the correct size and type in the printer menu can trigger a paper detection error.

Dust or Debris in the Paper Feed Rollers

Over time, dust, paper fibers, or debris can build up on the paper feed rollers. This prevents the rollers from grabbing and feeding the paper properly, making the printer think the tray is empty. Regular cleaning of the rollers helps maintain smooth paper handling.

Printer Firmware or Driver Issues

Sometimes the issue is not mechanical but software-related. Outdated firmware or corrupted drivers may cause the printer to misread the paper tray status. Ensuring that your Canon PIXMA MG7720 is running the latest updates can eliminate such detection problems.

Hardware Sensor Problems

If none of the above issues apply, the problem may lie with the paper detection sensor itself. A malfunctioning sensor can incorrectly signal that no paper is present, even when the tray is full. In this case, professional repair may be required.

How to Fix the Canon PIXMA MG7720 Printer Not Showing Paper

1. Check the Paper Tray

Begin by removing the paper tray and making sure it is not empty. Reload fresh paper and adjust the paper guides to fit snugly against the stack. Avoid overfilling the tray, as too much paper can also cause detection errors. Once properly loaded, reinsert the tray and check if the printer recognizes the paper.

2. Confirm Paper Size and Type Settings

Navigate to your printer’s menu or the Canon software on your computer and confirm that the correct paper size and type are selected. If you are using special media, such as glossy photo paper, you need to match the settings to avoid errors. Incorrect configuration is a common reason for paper not being detected.

3. Clean the Paper Feed Rollers

If the printer still does not recognize paper, open the rear panel and inspect the rollers. Use a lint-free cloth slightly dampened with water to clean them. Rotate the rollers manually to ensure that the entire surface is free of dust or residue. Allow them to dry completely before loading paper again.

4. Restart and Reset the Printer

Turn off the printer, unplug it from the power source, and wait for a few minutes. Plug it back in and restart the device. This reset often clears minor errors and refreshes the sensor system. After restarting, reload the paper and test again.

5. Update or Reinstall Printer Drivers

Visit Canon’s official website and download the latest drivers and firmware for the PIXMA MG7720. Outdated drivers can cause communication errors between your computer and the printer, resulting in paper not being recognized. If necessary, uninstall the existing drivers before reinstalling the updated versions.

6. Inspect for Hardware Issues

If none of the above steps solve the problem, the issue may be hardware-related. Inspect the paper detection sensor and the tray for visible damage. If you suspect the sensor is malfunctioning, contacting Canon support or visiting a service center may be necessary. Professional repair ensures that the problem is fixed without causing further damage to the device.

FAQs About Canon PIXMA MG7720 Paper Feed Issues

Why does my Canon PIXMA MG7720 keep saying no paper?

This usually happens when the tray is empty, misaligned, or the printer settings do not match the paper size. Dust on the rollers or outdated drivers can also trigger the error.

Can using the wrong paper type cause this problem?

Yes. If the printer expects standard paper but you insert specialty paper without adjusting settings, it may fail to detect it. Always match the media settings to the loaded paper.

How often should I clean the paper rollers?

Cleaning every few months or whenever you notice feeding issues is recommended. Regular cleaning prevents dust buildup and keeps the rollers working efficiently.

Do I need to replace the paper feed rollers?

If cleaning does not restore proper function and the rollers appear worn or cracked, replacement may be necessary. Worn rollers cannot grip the paper effectively.

Will a firmware update fix the issue?

In some cases, yes. A firmware update can correct software errors that prevent the printer from recognizing paper. Always ensure your printer is running the latest updates.

Final Thoughts

If your Canon PIXMA MG7720 printer does not show paper even when the tray is loaded, the issue may stem from simple causes such as empty trays, misaligned guides, or dust on rollers. More complex problems like driver errors or sensor malfunctions are also possible. By following the troubleshooting steps provided, you can often resolve the issue without professional assistance. Regular maintenance, correct paper settings, and keeping the printer clean are the best ways to prevent future paper detection problems. With the right care, your Canon PIXMA MG7720 will continue to deliver reliable and high-quality prints without unnecessary interruptions.