Why is my Canon PIXMA TS9520 low ink error?

Common causes include driver issues, connectivity problems, outdated firmware, and hardware malfunctions. Follow our step-by-step guide to diagnose and fix your Canon PIXMA TS9520.

How do I fix Canon PIXMA TS9520 low ink error?

Start by checking your printer connections, updating drivers, and running the built-in troubleshooting utility. Our guide below provides detailed steps for resolving Canon PIXMA TS9520 low ink error.

When should I call a technician for my Canon PIXMA TS9520?

If basic troubleshooting doesn't resolve the low ink error issue, or if you hear unusual noises, smell burning, or see error codes, it's time to contact a certified Canon printer technician.

Canon PIXMA TS9520 Low Ink Error

The Canon PIXMA TS9520 low ink error is one of the most common issues faced by owners of this versatile all-in-one printer. This wireless inkjet printer uses six individual ink tanks (PGI-280 pigment black, CLI-281 black, cyan, magenta, yellow, and photo blue) to deliver exceptional photo and document quality. When your printer displays a low ink warning—or refuses to print despite having visible ink remaining—it can disrupt your workflow and cause unnecessary frustration. This guide walks you through proven troubleshooting steps to resolve the Canon PIXMA TS9520 low ink error, restore normal printing, and avoid costly printer repair calls.

Understanding the Canon PIXMA TS9520 Low Ink Warning System

The TS9520 employs an optical sensor system that monitors ink levels through the transparent windows on each CLI-281 and PGI-280 cartridge. Sometimes the sensor misreads actual ink volume, especially with refilled or third-party cartridges. Before you attempt any fix printer procedures, it's important to distinguish between a genuine low ink condition and a false error triggered by sensor issues or firmware glitches.

Step-by-Step Troubleshooting Guide

Verify Actual Ink Levels: Press the Home button on your TS9520's 4.3-inch touchscreen, then navigate to Setup > Estimated Ink Levels. Compare the on-screen display with the physical ink in your cartridges. If any color shows empty but the tank feels heavy, you likely have a sensor misread rather than a true depletion. This is the first step in any effective troubleshooting process.

Remove and Reinstall Cartridges: Open the front cover and lift the cartridge locking lever. Remove each CLI-281 and PGI-280 cartridge individually. Check that the transparent ink window is clean and unobstructed—fingerprints or dust can confuse the optical sensor. Reinsert cartridges firmly until they click, then lower the locking lever. Close the cover and wait 60 seconds for the printer to rescan levels.

Reset the Ink Counter Manually: With the printer powered on, press and hold the Stop button for at least 7 seconds. This forces the Canon PIXMA TS9520 low ink error to clear temporarily, allowing you to continue printing. Note that this override doesn't refill your cartridges—it simply bypasses the warning. Use this only when you're certain ink remains, as printing with truly empty tanks can damage the printhead and require professional printer repair.

Clean the Ink Sensor Windows: Dampen a lint-free cloth with distilled water and gently wipe the transparent plastic windows on each cartridge. Dry thoroughly with a fresh cloth. For stubborn residue, use a cotton swab lightly moistened with isopropyl alcohol. Avoid touching the copper electrical contacts or the ink nozzle area. Reinstall clean cartridges and check if the error clears.

Update Printer Firmware: Canon periodically releases firmware updates that improve ink level detection accuracy. Connect your TS9520 to your network, then navigate to Setup > Device Settings > Firmware Update > Check Current Version. If an update is available, install it and restart the printer. Many users report that firmware version 2.030 or later resolves persistent false low ink warnings with compatible cartridges.

Perform a Hard Reset: If the Canon PIXMA TS9520 low ink error persists, disconnect the power cord while the printer is on. Wait a full 5 minutes to drain residual power from the capacitors. Press the power button twice during this period to discharge remaining electricity. Reconnect power, turn on the printer, and check ink levels again. This reset clears temporary memory glitches that can cause erroneous sensor readings.

⚠️ Important: Never continue printing when cartridges are genuinely empty. The TS9520's thermal inkjet printhead relies on ink flow for cooling; running dry can permanently damage the printhead, leading to repair costs exceeding $150. If you must override the warning, replace cartridges within 50 pages. Always use genuine Canon PGI-280/CLI-281 cartridges or high-quality compatible alternatives with proper chip architecture to avoid recurring errors.

Preventing Future Low Ink Errors

Regular maintenance reduces false warnings and extends printhead life. Print at least once weekly to prevent ink from drying in the nozzles. Enable "Quiet Mode" only when necessary, as it uses more ink per page. For users who print infrequently, consider the Canon PIXMA G-series MegaTank models like the G3260, which use a different ink monitoring system. When you do need printer support, address warning messages promptly rather than repeatedly overriding them.

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Frequently Asked Questions

Why does my Canon PIXMA TS9520 show low ink when the cartridge is full?

This typically occurs with refilled or third-party cartridges whose chips weren't properly reset. The optical sensor may also misread ink levels if the transparent window is dirty or scratched. Cleaning the window and performing the Stop button reset (hold 7 seconds) usually resolves false warnings. For persistent issues, firmware updates or genuine Canon cartridges may be necessary.

Can I print in black only when color inks are low?

The TS9520 requires all installed cartridges to have sufficient ink for any printing, including grayscale documents. This protects the printhead from damage. To conserve color ink, select "Grayscale" in your print driver and set the paper type to "Plain Paper" rather than photo papers, which trigger six-color printing. For dedicated monochrome printing, consider a laser printer alternative.

How do I know if my low ink error requires professional tech support?

Seek professional printer support if: (1) the error persists after replacing all cartridges with genuine Canon products, (2) you observe leaking ink inside the printer, (3) print quality degrades with streaking or banding despite full cartridges, or (4) the touchscreen displays error codes like 1686 or 1688 that don't clear with standard resets. These symptoms may indicate printhead failure or mainboard issues requiring specialized diagnosis.