
The Waste Toner Full error on Canon IR (imageRUNNER) printers can be a frustrating issue, often halting printing operations until the waste toner container is replaced or emptied. However, there are temporary workarounds to bypass this error and resume printing, especially in situations where immediate replacement isn't feasible. These methods typically involve resetting the printer's waste toner counter or manually emptying the waste toner container, though it’s important to proceed with caution to avoid damaging the printer or creating a mess. While these tricks can provide a short-term solution, they are not a permanent fix, and addressing the issue properly by replacing the waste toner container is ultimately recommended to ensure optimal printer performance and longevity.
| Characteristics | Values |
|---|---|
| Error Cause | Waste toner container is full or sensor is malfunctioning. |
| Temporary Solution | Reset the waste toner counter (requires service mode access). |
| Service Mode Access | Press "Additional Functions," "2," "8," then "Additional Functions." |
| Counter Reset Code | Navigate to "COPyer" > "Counter" > "MISC" > "W-TONER-CT." |
| Permanent Solution | Empty or replace the waste toner container. |
| Risk of Temporary Fix | Overfilling the waste toner container can damage the printer. |
| Tools Required | Screwdriver, gloves, and possibly a replacement waste toner container. |
| Compatibility | Applies to Canon IR (imageRUNNER) series printers. |
| Manufacturer Recommendation | Contact Canon service for proper waste toner container replacement. |
| Frequency of Issue | Common in high-volume printing environments. |
| Environmental Impact | Improper disposal of waste toner can harm the environment. |
| Alternative Method | Manually clean the waste toner sensor to resolve false errors. |
| Warning | Avoid spilling toner during the process; it can cause health issues. |
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What You'll Learn
- Resetting the waste toner counter manually in the Canon IR series service mode
- Using a waste toner box bypass method to avoid error messages
- Cleaning the waste toner sensor to resolve false full error alerts
- Replacing the waste toner box with a compatible or refilled alternative
- Disabling the waste toner full error via firmware adjustments (advanced method)

Resetting the waste toner counter manually in the Canon IR series service mode
The Canon IR series, like many multifunction printers, includes a waste toner container that collects excess toner during printing. Over time, this container fills up, triggering a "Waste Toner Full" error that halts printing. While replacing the container is the recommended solution, there are situations where manually resetting the waste toner counter in service mode can temporarily resolve the issue. This method is particularly useful when immediate access to a replacement container is unavailable, but it should be approached with caution to avoid long-term damage to the printer.
To reset the waste toner counter, access the Canon IR series service mode by pressing the "Additional Functions" key, followed by "2" and "8" simultaneously, then the "Additional Functions" key again. This sequence varies slightly depending on the model, so consult the printer’s manual for precise instructions. Once in service mode, navigate to the "Counter" menu, locate the waste toner counter, and reset it to zero. This process effectively tricks the printer into believing the waste toner container is empty, allowing printing to resume. However, this is a temporary fix, as the container’s actual capacity remains unchanged.
It’s crucial to monitor the printer closely after resetting the counter. Continued use without replacing the waste toner container can lead to toner spillage, which damages internal components and compromises print quality. Additionally, excessive toner buildup can clog the printer’s mechanisms, resulting in costly repairs. Therefore, this method should only be used as a stopgap measure, with the container replaced as soon as possible. Regular maintenance, such as checking toner levels and cleaning the printer, can also prevent premature waste toner container errors.
Comparatively, while third-party solutions like drilling a hole in the container to empty it exist, they are not recommended due to the risk of toner leakage and voiding the printer’s warranty. Manually resetting the counter in service mode is a safer, non-invasive alternative, provided it’s done responsibly. For businesses relying heavily on their Canon IR printers, investing in genuine replacement containers and scheduling routine maintenance is a more sustainable approach than relying on temporary fixes. Understanding the printer’s service mode and its capabilities empowers users to address issues efficiently while minimizing downtime.
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Using a waste toner box bypass method to avoid error messages
The waste toner full error on Canon IR printers can be a frustrating interruption, especially during critical print jobs. One method to bypass this issue involves manipulating the waste toner box sensor, effectively tricking the printer into believing the box is not full. This approach requires precision and an understanding of the printer’s internal mechanics, as it involves accessing the sensor and adjusting its position or connection. While not a permanent solution, it can provide temporary relief until a proper replacement or maintenance is feasible.
To execute this bypass, start by powering off the printer and unplugging it to ensure safety. Locate the waste toner box, typically found near the toner cartridges or drum unit, depending on the model. Carefully remove the box, noting its position and any sensors or connectors attached to it. The sensor, often a small lever or optical detector, is designed to trigger the error when the waste toner reaches a certain level. Gently reposition the sensor away from the toner accumulation or disconnect it temporarily, ensuring it does not interfere with the printer’s operation. Reassemble the components and power on the printer to verify the error has been bypassed.
While this method can be effective, it comes with risks. Disabling the sensor means the printer will no longer monitor waste toner levels, potentially leading to overflow and damage to internal components. Additionally, bypassing safety mechanisms can void warranties or violate manufacturer guidelines. Users should weigh these risks against the immediate need to resume printing and consider this a short-term fix rather than a long-term solution.
For those attempting this bypass, it’s crucial to work methodically and document each step for future reference. Use tools like a screwdriver or tweezers to handle small components, and avoid applying excessive force to prevent damage. After bypassing the error, monitor the printer closely for unusual noises, leaks, or print quality issues, as these may indicate complications. Ultimately, this method serves as a temporary workaround, emphasizing the importance of regular maintenance and timely replacement of the waste toner box to ensure optimal printer performance.
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Cleaning the waste toner sensor to resolve false full error alerts
A common culprit behind false waste toner full errors on Canon IR printers is a dirty or malfunctioning waste toner sensor. This sensor, typically located near the waste toner bottle, detects toner levels and triggers the error message when it believes the bottle is full. However, dust, toner buildup, or misalignment can cause the sensor to malfunction, leading to inaccurate readings and unnecessary downtime.
Cleaning the waste toner sensor is a straightforward process that can often resolve this issue without requiring a new bottle.
Locating the Sensor: Before cleaning, consult your Canon IR printer's manual to identify the exact location of the waste toner sensor. It's usually a small, rectangular component with a clear window or lens, positioned near the waste toner bottle's opening.
Cleaning Process:
- Power Down: Ensure the printer is powered off and unplugged for safety.
- Access the Sensor: Open the printer's front cover and locate the waste toner bottle. Carefully remove the bottle, taking note of its orientation for reinstallation.
- Gentle Cleaning: Using a soft, lint-free cloth slightly dampened with isopropyl alcohol (70% concentration), gently wipe the sensor's window or lens. Avoid excessive pressure or rubbing, as this can damage the sensor.
- Dry Thoroughly: Allow the sensor to air dry completely before reassembling the printer.
Important Considerations:
- Avoid Abrasives: Never use abrasive materials or solvents, as these can scratch or damage the sensor.
- Reassembly: Ensure the waste toner bottle is reinserted correctly, following the manufacturer's instructions.
- Test and Monitor: After cleaning, power on the printer and check if the error persists. If the issue reoccurs, further investigation or professional assistance may be necessary.
Preventative Measures: Regularly cleaning the area around the waste toner bottle and sensor can help prevent dust and toner buildup, reducing the likelihood of false error alerts.
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Replacing the waste toner box with a compatible or refilled alternative
One of the most straightforward ways to bypass the "waste toner full" error on a Canon IR printer is by replacing the waste toner box with a compatible or refilled alternative. This method not only saves costs but also extends the life of your printer without requiring extensive technical knowledge. Compatible waste toner boxes are designed to fit seamlessly into your Canon IR model, offering a plug-and-play solution that immediately resets the error message. Refilled options, on the other hand, involve cleaning and reusing the original box, which can be more labor-intensive but equally effective if done correctly.
When opting for a compatible waste toner box, ensure it meets the specifications of your Canon IR model. Generic alternatives are widely available online and often come with detailed instructions for installation. Look for products with positive reviews and compatibility guarantees to avoid compatibility issues. For refilling, start by carefully removing the waste toner box from the printer, following the manufacturer’s guidelines. Use a soft brush or compressed air to clean out residual toner, taking care not to inhale the particles or spill them. Once cleaned, refill the box with fresh waste toner or use a sealing kit to reset the box’s sensor, allowing it to function as if it were new.
While replacing the waste toner box is effective, it’s crucial to weigh the risks. Using a refilled box improperly can lead to toner leaks or sensor malfunctions, potentially causing long-term damage to your printer. Compatible boxes, though convenient, may not always meet the same quality standards as OEM (Original Equipment Manufacturer) parts. To mitigate these risks, always follow the manufacturer’s instructions and consider purchasing from reputable suppliers. Additionally, monitor your printer’s performance after installation to ensure the error has been resolved and no new issues arise.
From a cost-benefit perspective, replacing the waste toner box with a compatible or refilled alternative is a practical solution for users looking to avoid the expense of OEM parts. A new OEM waste toner box can cost upwards of $50, while compatible options are often available for less than half that price. Refilling, though time-consuming, can cost as little as $10 in materials. However, the savings come with a trade-off: the potential for reduced reliability or voiding your printer’s warranty. For businesses or individuals with high print volumes, the recurring savings may outweigh these risks, making this method a viable long-term strategy.
In conclusion, replacing the waste toner box with a compatible or refilled alternative is a cost-effective and accessible way to trick the "waste toner full" error on a Canon IR printer. By choosing the right product, following proper installation procedures, and being mindful of potential risks, users can extend their printer’s functionality without significant investment. Whether you opt for a compatible box or decide to refill the original, this approach offers a practical workaround to keep your printer running smoothly.
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Disabling the waste toner full error via firmware adjustments (advanced method)
Firmware adjustments offer a technical workaround for the waste toner full error on Canon IR devices, but this method demands caution and precision. Unlike physical resets or sensor tricks, firmware modifications directly alter the printer's operating system, potentially voiding warranties or causing irreversible damage if mishandled. This advanced approach targets the error message's root cause by recalibrating the printer's waste toner level detection thresholds or disabling the alert altogether.
Understanding the Risks: Before proceeding, acknowledge the inherent risks. Incorrect firmware adjustments can brick your printer, rendering it inoperable. Additionally, tampering with firmware may violate Canon's terms of service, voiding warranties and limiting future support options. Proceed only if you possess a strong understanding of printer firmware and are comfortable accepting these risks.
Locating Firmware Resources: Finding compatible firmware files is crucial. Online forums and communities dedicated to printer maintenance sometimes host modified firmware versions designed to bypass waste toner errors. Exercise extreme caution when downloading files from unknown sources, as they may contain malware. Verify file integrity using checksums and prioritize sources with positive user feedback.
Flashing the Firmware: The process involves flashing the modified firmware onto the printer's memory. This typically requires specialized software and a specific procedure unique to your Canon IR model. Detailed instructions are often included with the firmware file or available on the source website. Follow these steps meticulously, ensuring a stable power supply throughout the process to prevent data corruption.
Post-Flash Considerations: After successfully flashing the firmware, monitor the printer closely. While the waste toner full error should be suppressed, keep an eye on actual waste toner levels. Overfilling the waste toner container can lead to spills and damage internal components. Regularly check the container and empty it as needed, even without the error prompt.
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Frequently asked questions
The "Waste Toner Full" error indicates that the waste toner container in your Canon IR printer is full or detected as full. This container collects excess toner not used during printing, and when it reaches capacity, the printer stops functioning to prevent damage.
To temporarily reset the error, locate the waste toner sensor (usually near the waste toner container), clean it gently with a soft cloth, and ensure no debris is blocking it. Then, power cycle the printer by turning it off, waiting a few minutes, and turning it back on. This may allow you to continue printing temporarily, but replacing the waste toner container is recommended.
Bypassing the error without replacing the container is not recommended, as it can lead to toner leakage and damage the printer. However, some users report emptying the waste toner container carefully and resetting the sensor, but this is not advised by Canon and may void your warranty. Always replace the waste toner container for a permanent solution.







































