How to Choose Cartridge Thread Type for CO2 Inflator: Easy!
Have you ever seen a flat tire ruin a fun bike ride? It can be very upsetting. A CO2 inflator can help you fix it fast. But how do you know which one to use? It all starts with knowing how to choose cartridge thread type for CO2 inflator. It is simpler than you might think!
Do you know about threaded and unthreaded CO2 cartridges? They are not all the same. Using the wrong one can cause problems. Let’s learn how to pick the right one so you can get back to riding quickly.
Figuring out how to choose cartridge thread type for CO2 inflator is important. It keeps you safe. It also makes sure your inflator works when you need it most. Let’s get started!
Key Takeaways
- Always check your CO2 inflator instructions before buying cartridges.
- Threaded cartridges screw into the inflator, while unthreaded cartridges do not.
- Using the correct cartridge thread type ensures a secure and leak-free connection.
- Different inflators need different cartridge types, so match them carefully.
- Knowing how to choose cartridge thread type for CO2 inflator saves time and frustration.
Understanding CO2 Inflator Basics

A CO2 inflator is a small tool. It helps you fill your bike tire with air quickly. It uses a CO2 cartridge. This cartridge holds compressed carbon dioxide gas. When you use the inflator, the gas goes into your tire. This fills it up so you can keep riding. CO2 inflators are small and easy to carry. Many bikers keep them in their seat bag or backpack. This way, they can fix a flat tire on the road. It is much faster than using a hand pump. CO2 inflators are very useful for races or long rides. They help you get back on your bike quickly. Knowing how they work will help you learn how to choose cartridge thread type for CO2 inflator.
- CO2 inflators fill tires fast.
- They use small CO2 cartridges.
- Inflators are easy to carry on rides.
- They are great for quick tire fixes.
- CO2 gas fills the tire.
Using a CO2 inflator is usually simple. First, you attach the inflator to the valve on your tire. Then, you pierce the CO2 cartridge. This releases the gas into the tire. It is important to follow the instructions. Some inflators have controls. These controls let you control how much air goes into the tire. This can help you avoid overfilling the tire. CO2 inflators can be very cold when used. Some have a sleeve to protect your hands. Always be careful when using one. Knowing the parts of your inflator will help you know how to choose cartridge thread type for CO2 inflator. It is a good idea to practice using your inflator before you need it on a ride. This way, you will be ready if you get a flat tire.
Why Use a CO2 Inflator?
Have you ever tried pumping a tire with a hand pump for a long time? It can be tiring! A CO2 inflator is much faster. It fills your tire in seconds. This is very helpful when you are in a race. It is also great if you just want to get back to riding quickly. CO2 inflators are small and lightweight. They don’t take up much space in your bag. Some pumps can be big and heavy. CO2 inflators are easy to use. Even kids can learn how to use them. They are a good tool for any biker to have. They help you fix flats and get back to your ride faster. This is why many bikers like using them. Knowing how they work is important. It also matters how to choose cartridge thread type for CO2 inflator.
Types of CO2 Inflators
Did you know there are different kinds of CO2 inflators? Some have a simple design. You just push the cartridge in to release the gas. Others have more features. They might have a valve to control the airflow. Some even have a gauge to show the tire pressure. This helps you avoid overfilling the tire. Some inflators work with both threaded and unthreaded cartridges. But most only work with one type. It is important to know which type your inflator needs. Using the wrong cartridge can damage the inflator. It can also be dangerous. Knowing the type will help you know how to choose cartridge thread type for CO2 inflator. Always read the instructions for your inflator.
Safety Tips for Using CO2 Inflators
Using a CO2 inflator is usually safe. But there are some things to remember. The CO2 cartridge can get very cold. This can hurt your hand. Some inflators have a cover to protect your hand. If yours doesn’t, wear gloves. Never point the inflator at your face or body. The gas comes out very fast. It could hurt your eyes. Always follow the instructions that come with your inflator. Don’t try to use a cartridge that is the wrong size. It might not work. It could also damage the inflator. Always be careful. Knowing how to choose cartridge thread type for CO2 inflator is part of staying safe. After using a CO2 cartridge, it can’t be refilled. You need to throw it away. Be sure to recycle it if you can.
Fun Fact or Stat: The first CO2 inflators were invented in the late 1800s for inflating bicycle tires!
Threaded vs. Unthreaded Cartridges

CO2 cartridges come in two main types. These are threaded and unthreaded. Threaded cartridges have a screw thread at the top. This thread lets you screw the cartridge into the inflator. Unthreaded cartridges are smooth at the top. They are used with inflators that pierce the cartridge. Knowing the difference is key to how to choose cartridge thread type for CO2 inflator. Using the wrong cartridge can cause leaks. It can also damage your inflator. Always check your inflator’s instructions. They will tell you which type of cartridge to use. Using the right cartridge keeps you safe. It also makes sure your inflator works when you need it. Both types of cartridges are filled with CO2 gas. This gas is used to inflate your tires quickly.
- Threaded cartridges screw into the inflator.
- Unthreaded cartridges are smooth.
- Use the right type to avoid leaks.
- Check your inflator’s instructions first.
- Both types contain CO2 gas.
- Right type is key to how to choose cartridge thread type for CO2 inflator.
Threaded cartridges are often seen as more secure. The screw thread makes a tight connection. This helps prevent leaks. Some people find them easier to use. Unthreaded cartridges can be quicker to use. You just push them into the inflator. But they need a good seal to prevent leaks. Some inflators work with both types. These are called hybrid inflators. But most inflators only work with one type. It is very important to know which type your inflator needs. This will help you avoid problems on the road. Make sure you know how to choose cartridge thread type for CO2 inflator before you buy cartridges. This way, you will always have the right ones with you. It is a simple step that can save you time and trouble.
How to Identify Threaded Cartridges
How can you tell if a cartridge is threaded? Look at the top of the cartridge. A threaded cartridge has a small screw thread. This thread is made of metal. It looks like the threads on a screw. You can turn a threaded cartridge into the inflator. The threads will match up. If the cartridge is unthreaded, it will be smooth. There will be no threads at the top. Knowing how to spot the difference is key. This is important in how to choose cartridge thread type for CO2 inflator. Always look closely at the cartridge before you buy it. Make sure it is the right type for your inflator. Using the wrong type can be dangerous. It can also damage your inflator. Take a moment to check before you use it.
How to Identify Unthreaded Cartridges
What does an unthreaded cartridge look like? It is smooth at the top. There are no screw threads. The top is just a flat piece of metal. Unthreaded cartridges are often used in inflators that pierce them. The inflator has a sharp pin. This pin punctures the top of the cartridge. This releases the CO2 gas. If you try to screw an unthreaded cartridge into a threaded inflator, it won’t work. The threads won’t match up. Knowing this difference is important. It will help you how to choose cartridge thread type for CO2 inflator correctly. Always check the top of the cartridge before you use it. Make sure it is the right type for your inflator. This will keep you safe and make sure your inflator works.
Pros and Cons of Each Type
Each type of CO2 cartridge has its own good and bad points. Threaded cartridges are often more secure. The screw thread makes a tight seal. This helps prevent leaks. But they can take a little longer to screw in. Unthreaded cartridges are faster to use. You just push them into the inflator. But they can be more likely to leak. This is especially true if the seal is not perfect. Some people like the speed of unthreaded cartridges. Others like the security of threaded cartridges. Which type is best for you? It depends on what you like. It also depends on your inflator. Knowing the pros and cons will help you with how to choose cartridge thread type for CO2 inflator. Think about what is most important to you.
Fun Fact or Stat: Threaded cartridges are generally considered more reliable for long-term storage because the threads create a better seal!
Matching Cartridge to Your Inflator

The most important thing is to match the cartridge to your inflator. Using the wrong type can cause problems. It can damage the inflator. It can also be dangerous. Always check the instructions for your inflator. They will tell you which type of cartridge to use. Some inflators only work with threaded cartridges. Others only work with unthreaded cartridges. Some inflators can use both. But these are not as common. Knowing how to choose cartridge thread type for CO2 inflator is key. It keeps you safe. It also makes sure your inflator works correctly. If you are not sure which type to use, ask a bike shop. They can help you find the right cartridges for your inflator. Always be careful when using a CO2 inflator.
- Check your inflator’s instructions.
- Use the right cartridge type.
- Threaded or unthreaded must match.
- Ask a bike shop for help if needed.
- Using the wrong type is dangerous.
Imagine trying to fit a square peg into a round hole. It just won’t work! The same is true for CO2 cartridges. If you try to use the wrong type, it won’t fit. Or it might fit, but it won’t work correctly. This can be very frustrating. Especially if you are trying to fix a flat tire on the road. That is why it is so important to know how to choose cartridge thread type for CO2 inflator. Take the time to check your inflator and your cartridges. Make sure they are a match. This will save you time and trouble in the long run. It will also help you stay safe. Remember, a little bit of checking can go a long way. It is always better to be safe than sorry when it comes to bike repairs.
Checking Inflator Compatibility
How do you know if a cartridge will work with your inflator? The first step is to look at the inflator. Does it have a screw thread? If so, you need a threaded cartridge. If it has a pin that pierces the cartridge, you need an unthreaded cartridge. The best way to be sure is to read the instructions. The instructions will tell you exactly which type of cartridge to use. They might even have a picture. This can help you see the difference between the two types. If you don’t have the instructions, look online. Most manufacturers have instructions on their website. Knowing this will help you how to choose cartridge thread type for CO2 inflator. It is always better to check before you buy the cartridges.
Reading Product Manuals
Product manuals can seem boring. But they are very helpful. They tell you everything you need to know about your inflator. This includes which type of cartridge to use. The manual might also have tips on how to use the inflator safely. It might tell you how to avoid leaks. Some manuals even have diagrams. These diagrams show you how to attach the cartridge. They can be very useful if you are not sure what to do. Always read the manual before using a new inflator. This will help you avoid problems. It will also help you stay safe. Manuals are important for how to choose cartridge thread type for CO2 inflator. They have all the information you need. Don’t skip this important step.
Asking Experts for Advice
Sometimes, the best thing to do is ask an expert. If you are not sure which cartridge to use, go to a bike shop. The people who work there know a lot about bikes. They can help you find the right cartridges for your inflator. They can also show you how to use the inflator safely. Don’t be afraid to ask questions. That is what they are there for! They can help you understand how to choose cartridge thread type for CO2 inflator. They can also give you tips on how to fix a flat tire quickly. Getting advice from an expert can save you time and trouble. It can also help you stay safe on the road. Bike shop workers are a great resource for bikers of all levels.
Fun Fact or Stat: Many bike shops offer free workshops on basic bike maintenance, including how to use CO2 inflators correctly!
Sizes and Compatibility of Cartridges

CO2 cartridges come in different sizes. The most common sizes are 12g, 16g, and 20g. The size tells you how much CO2 gas is in the cartridge. Bigger cartridges can fill bigger tires. Smaller cartridges are good for smaller tires. It is important to choose the right size for your tire. If the cartridge is too small, it won’t fill the tire enough. If it is too big, you might overfill the tire. This can cause it to burst. Always check the instructions for your inflator. They will tell you which size cartridge to use. Also, remember how to choose cartridge thread type for CO2 inflator. Size and thread type both matter for safety.
- Common sizes are 12g, 16g, and 20g.
- Size tells you how much CO2 gas.
- Choose the right size for your tire.
- Too small won’t fill enough.
- Too big can cause bursting.
- Check inflator instructions.
Think of it like filling a glass of water. If you have a small glass, you don’t need a lot of water. If you have a big glass, you need more water. The same is true for bike tires. A small tire needs a smaller cartridge. A big tire needs a bigger cartridge. It is also important to consider the type of tire. Road bike tires are usually smaller. Mountain bike tires are usually bigger. Choose the cartridge size that is right for your tire type. This will help you get the right pressure. This makes for a safer and more comfortable ride. Remember, size is just one part of how to choose cartridge thread type for CO2 inflator. Thread type is also very important. Make sure you get both right.
Understanding Gram (g) Sizes
What does “16g” mean on a CO2 cartridge? The “g” stands for grams. It tells you how much CO2 gas is in the cartridge. A 16g cartridge has 16 grams of CO2 gas. A 12g cartridge has 12 grams. The more grams, the more gas. More gas can fill a bigger tire. Or it can fill a tire to a higher pressure. Knowing this helps you choose the right size. Most road bike tires need a 16g cartridge. Mountain bike tires might need a 20g cartridge. Check your tire’s pressure rating. This will tell you how much pressure it needs. Then, choose a cartridge that can fill it to that pressure. This knowledge also helps with how to choose cartridge thread type for CO2 inflator. Both are important.
Matching Size to Tire Type
Do you have a road bike or a mountain bike? This makes a difference in cartridge size. Road bike tires are usually narrow. They don’t need much gas. A 12g or 16g cartridge is often enough. Mountain bike tires are wider. They need more gas. A 16g or 20g cartridge might be better. Fat bike tires are very wide. They need a lot of gas. You might need a 25g cartridge or even bigger. Always check your tire’s size. This will help you choose the right cartridge. It will also help you fill the tire to the right pressure. This is important for a safe ride. Don’t forget how to choose cartridge thread type for CO2 inflator too. Both size and thread type matter.
Avoiding Over-Inflation
Over-inflating a tire can be dangerous. It can cause the tire to burst. This can lead to a crash. Always be careful when filling your tires. Use a CO2 inflator with a control valve. This lets you control how much gas goes into the tire. Check the tire pressure often. Use a tire pressure gauge. This will tell you how much pressure is in the tire. Don’t go over the maximum pressure listed on the tire. It is better to under-inflate than over-inflate. An under-inflated tire will be slow. But an over-inflated tire can explode. This knowledge and knowing how to choose cartridge thread type for CO2 inflator are crucial. Stay safe by being careful.
| Cartridge Size | Typical Tire Type | Benefits | Drawbacks |
|---|---|---|---|
| 12g | Road Bike (Narrow Tires) | Lightweight, compact | May not fully inflate larger tires |
| 16g | Road Bike, Hybrid Bike | Good balance of size and capacity | Might need two for very large tires |
| 20g | Mountain Bike (Standard) | Sufficient for most mountain bike tires | Slightly heavier than smaller sizes |
| 25g | Mountain Bike (Large Volume), Fat Bike | Can fully inflate large volume tires | Bulky, potentially overkill for smaller tires |
Fun Fact or Stat: Tire pressure is measured in PSI (pounds per square inch) or BAR (a metric unit). Check your tire sidewall for the recommended range!
Safety Precautions and Best Practices

Using a CO2 inflator is usually safe. But it is important to take precautions. Always wear gloves. The CO2 cartridge gets very cold. This can burn your skin. Never point the inflator at your face. The gas comes out very fast. It can hurt your eyes. Always follow the instructions. Don’t try to use a cartridge that is the wrong size. It might not work. It could also damage the inflator. After using a CO2 cartridge, it can’t be refilled. You need to throw it away. Be sure to recycle it if you can. It is also important to know how to choose cartridge thread type for CO2 inflator. This is part of being safe. Always be careful and think ahead.
- Wear gloves to protect your hands.
- Don’t point at your face or eyes.
- Follow all instructions carefully.
- Recycle used cartridges if possible.
- Use the correct cartridge size.
Imagine you are cooking. You wouldn’t touch a hot pan without a glove, right? The same goes for CO2 cartridges. They get very cold very quickly. This can be a surprise if you are not ready. Always have gloves with you when you use a CO2 inflator. This will protect your hands from the cold. It is also a good idea to practice using the inflator before you need it. This way, you will be ready if you get a flat tire on the road. Knowing how to use the inflator safely is important. So is knowing how to choose cartridge thread type for CO2 inflator. Both will help you stay safe and get back to riding quickly. Always think safety first when using a CO2 inflator.
Wearing Protective Gear
Why is it important to wear gloves? The CO2 cartridge gets very cold. This is because of the rapid expansion of the gas. The cold can cause frostbite on your skin. Frostbite is like a burn from the cold. It can be very painful. Gloves protect your hands from this cold. Any type of gloves will work. Even a cloth glove is better than nothing. Some CO2 inflators come with a sleeve. This sleeve goes around the cartridge. It helps protect your hand. But gloves are still a good idea. This is an important tip to help you know how to choose cartridge thread type for CO2 inflator and stay safe. Always be prepared and protect your skin.
Safe Disposal of Used Cartridges
What do you do with a used CO2 cartridge? You can’t refill it. It is empty. You need to throw it away. But don’t just throw it in the trash. CO2 cartridges are made of metal. They can be recycled. Check with your local recycling center. They might accept CO2 cartridges. If they don’t, you can take them to a metal recycling facility. Recycling is good for the environment. It helps save resources. It also keeps the cartridges out of landfills. Always dispose of used cartridges safely. This is part of being a responsible biker. Knowing this and how to choose cartridge thread type for CO2 inflator are both important for bikers.
Practicing Before You Need It
Have you ever tried something new without practicing first? It can be hard! The same is true for using a CO2 inflator. It is a good idea to practice before you need it. This way, you will know what to do if you get a flat tire. Practice at home in a safe place. Read the instructions carefully. Attach the cartridge to the inflator. Then, release the gas into an old tire. See how it works. This will help you get comfortable with the inflator. It will also help you avoid mistakes on the road. Knowing how to choose cartridge thread type for CO2 inflator is also important. Make sure you practice with the right type of cartridge. Practice makes perfect!
Fun Fact or Stat: Releasing CO2 gas too quickly can freeze the inflator mechanism, making it temporarily unusable!
Troubleshooting Common Issues
Sometimes, things go wrong. Your CO2 inflator might not work. The tire might not fill up. There might be a leak. Don’t panic! Most problems are easy to fix. First, check the cartridge. Is it the right size? Is it the right type? Remember how to choose cartridge thread type for CO2 inflator. This is often the problem. Next, check the inflator. Is it attached correctly? Is the valve open? If there is a leak, tighten the connection. Sometimes, the cartridge is empty. If so, try a new cartridge. With a little troubleshooting, you can usually fix the problem. Knowing what to do can save you time and frustration on the road.
- Check the cartridge size and type.
- Make sure the inflator is attached right.
- Tighten connections to stop leaks.
- Try a new cartridge if needed.
- Don’t panic, stay calm and check each part.
Imagine you are trying to start a car. It won’t start. What do you do? You check the gas. You check the battery. You check the wires. The same approach works for CO2 inflators. Start with the basics. Is the cartridge full? Is it the right type? Is the inflator working? Go through each step one by one. Often, the problem is something simple. A loose connection. An empty cartridge. A wrong cartridge type. By checking each part, you can usually find the problem. Then, you can fix it and get back to riding. This is why knowing how to choose cartridge thread type for CO2 inflator is so important. It is one of the first things to check when troubleshooting.
Dealing with Leaks
What if you hear a hissing sound? This means there is a leak. CO2 gas is escaping. This can be frustrating. But don’t worry. Most leaks are easy to fix. First, tighten the connection between the cartridge and the inflator. Make sure it is screwed on tight. Next, check the valve on your tire. Make sure it is closed properly. Sometimes, dirt or debris can get in the valve. This can cause a leak. Clean the valve with a cloth. If the leak continues, try a new cartridge. The old cartridge might be damaged. Knowing how to choose cartridge thread type for CO2 inflator helps avoid leaks too. Using the wrong type can cause leaks. Check everything carefully.
When the Inflator Doesn’t Release CO2
Sometimes, you attach the cartridge. But no CO2 gas comes out. What do you do? First, make sure the cartridge is pierced. Some inflators need you to twist or push the cartridge. This pierces the top. If it is not pierced, no gas will come out. Next, check the inflator’s valve. Make sure it is open. Some inflators have a valve to control the airflow. If the valve is closed, no gas will come out. If these things don’t work, try a new cartridge. The old cartridge might be empty. Also, double check how to choose cartridge thread type for CO2 inflator. The wrong type might not pierce correctly. Don’t give up. Keep trying until you find the problem.
Knowing When to Replace the Inflator
CO2 inflators can last a long time. But they don’t last forever. Over time, they can wear out. The threads can get damaged. The valve can stop working. If your inflator is old or damaged, it might be time to replace it. Look for signs of wear and tear. Cracks, rust, or broken parts. If the inflator is not working properly, replace it. It is better to be safe than sorry. A new inflator will work better. It will also be more reliable. Knowing when to replace your inflator is important. Especially when you also know how to choose cartridge thread type for CO2 inflator. Both keep you safe on the road.
Fun Fact or Stat: Temperature changes can affect the pressure inside a CO2 cartridge. Extreme heat can cause them to rupture!
Summary
CO2 inflators are great tools for bikers. They help you fix flat tires quickly. But it is important to use them correctly. You need to know the basics of CO2 inflators. You need to understand the difference between threaded and unthreaded cartridges. You need to know how to choose cartridge thread type for CO2 inflator. Matching the right cartridge to your inflator is key. You also need to know about cartridge sizes. Choose the right size for your tire. And always follow safety precautions. Wear gloves and dispose of used cartridges safely.
Troubleshooting common issues can help too. Check for leaks and make sure the inflator is working. With a little knowledge and practice, you can use a CO2 inflator like a pro. It will help you stay safe and get back to riding quickly. Remember to check the instructions. And ask for help if you need it. A little bit of preparation can go a long way. It can make the difference between a fun ride and a frustrating one. So, be prepared and enjoy the ride!
Conclusion
CO2 inflators are a great way to quickly inflate your tires. They are small and easy to carry. Knowing the difference between threaded and unthreaded cartridges is important. It will help you choose the right one for your inflator. It is also important to know about cartridge sizes. This will help you fill your tires to the right pressure. Always follow safety precautions when using a CO2 inflator. With a little practice, you can use a CO2 inflator like a pro. Knowing how to choose cartridge thread type for CO2 inflator will keep you safe and on the road.
Frequently Asked Questions
Question No 1: What is a CO2 inflator?
Answer: A CO2 inflator is a small device. Bikers use it to quickly fill their tires with air. It uses a CO2 cartridge. This cartridge holds compressed carbon dioxide gas. When you use the inflator, the gas goes into your tire. This fills it up fast. CO2 inflators are small and easy to carry. Many bikers keep them in their seat bag. This way, they can fix a flat tire on the road quickly. They are very useful for races or long rides. They help you get back on your bike fast. But you need to know how to choose cartridge thread type for CO2 inflator.
Question No 2: What is the difference between threaded and unthreaded CO2 cartridges?
Answer: Threaded cartridges have a screw thread at the top. This thread lets you screw the cartridge into the inflator. Unthreaded cartridges are smooth at the top. They are used with inflators that pierce the cartridge. Knowing the difference is key to how to choose cartridge thread type for CO2 inflator. Using the wrong cartridge can cause leaks or damage your inflator. Always check your inflator’s instructions. They will tell you which type of cartridge to use. Using the right cartridge keeps you safe. It also makes sure your inflator works when you need it.
Question No 3: How do I know which type of CO2 cartridge to use with my inflator?
Answer: The most important thing is to check the instructions for your inflator. They will tell you which type of cartridge to use. Some inflators only work with threaded cartridges. Others only work with unthreaded cartridges. Some inflators can use both. But these are not as common. Knowing how to choose cartridge thread type for CO2 inflator is key. It keeps you safe. It also makes sure your inflator works correctly. If you are not sure which type to use, ask a bike shop. They can help you find the right cartridges for your inflator. Always be careful when using a CO2 inflator.
Question No 4: What size CO2 cartridge should I use?
Answer: CO2 cartridges come in different sizes. The most common sizes are 12g, 16g, and 20g. The size tells you how much CO2 gas is in the cartridge. Bigger cartridges can fill bigger tires. Smaller cartridges are good for smaller tires. It is important to choose the right size for your tire. If the cartridge is too small, it won’t fill the tire enough. If it is too big, you might overfill the tire. Always check the instructions for your inflator. They will tell you which size cartridge to use. And remember how to choose cartridge thread type for CO2 inflator too.
Question No 5: Is it safe to use a CO2 inflator?
Answer: Using a CO2 inflator is usually safe. But it is important to take precautions. Always wear gloves. The CO2 cartridge gets very cold. This can burn your skin. Never point the inflator at your face. The gas comes out very fast. It can hurt your eyes. Always follow the instructions. Don’t try to use a cartridge that is the wrong size. It might not work. It could also damage the inflator. After using a CO2 cartridge, it can’t be refilled. You need to throw it away. Be sure to recycle it if you can. Knowing how to choose cartridge thread type for CO2 inflator is part of being safe.
Question No 6: What should I do if my CO2 inflator is not working?
Answer: Sometimes, things go wrong. Your CO2 inflator might not work. The tire might not fill up. There might be a leak. Don’t panic! Most problems are easy to fix. First, check the cartridge. Is it the right size? Is it the right type? Remember how to choose cartridge thread type for CO2 inflator. This is often the problem. Next, check the inflator. Is it attached correctly? Is the valve open? If there is a leak, tighten the connection. Sometimes, the cartridge is empty. If so, try a new cartridge. With a little troubleshooting, you can usually fix the problem.
