Digital Printing Machine

You want your prints to look bright, but your Digital Printing Machine makes colors look strange. This problem upsets many people who work with printing.  Many people do not realize how important ICC profiles and color management are. You need the right profiles, good calibration, and to know about color spaces to get good results. Key Takeaways Change your designs from RGB to CMYK before you print. This makes sure the colors look right on your printed things. Pick the correct ICC profiles for your printer, ink, and paper. This helps keep colors accurate and stops colors from looking wrong. Check and adjust your monitor and printer often. This keeps colors the same on all devices and makes your prints look better.   Why Digital Printing Machines Produce Off-Color Results Screen vs. Print Color Spaces (RGB & CMYK) You might see that colors on your screen look brighter than what your digital printing machine prints. This is because screens and printers use different color spaces. Your screen uses rgb, which stands for red, green, and blue. These colors mix with light and make many bright shades. Printers use cmyk, which stands for cyan, magenta, yellow, and black. These colors mix with ink, not light, and they soak up light instead of shining it out. Here is a simple table to help you see the difference: Color Model Type Description rgb Additive Combines red, green, and blue light to create colors, primarily used for digital displays. cmyk Subtractive Uses cyan, magenta, yellow, and black inks to absorb light and produce colors on a white surface.   When you design in rgb, you get lots of bright colors. Your digital printing machine cannot print all these colors because cmyk has a smaller range. Some colors, like neon pink or electric blue, look great on your screen but turn dull when printed. That is why you should change your designs from rgb to cmyk before printing. If you do not, your digital printing machine will guess the colors, and you might not like the results. Tip: Always check your design in cmyk mode before printing. This helps you find colors that may not print right. You also need to think about the substrate, which is the material you print on. Different papers and fabrics soak up ink in different ways. For example, cotton fabric can make colors look softer. Glossy paper can make colors look brighter. The substrate you pick changes how rgb colors look when printed in cmyk. Here is another table showing how color space and substrate affect your results: Color Model Usage Gamut Color Accuracy rgb Digital Displays Wider Less accurate for print cmyk Printing Narrower More accurate for print You should use rgb for digital designs and cmyk for printing. Change rgb files to cmyk before printing to keep colors more even. Remember, cmyk colors may look less bright because of the substrate. Think about this: You spend hours making a bright t-shirt graphic in rgb. It looks awesome on your screen with bright purples and blues. You print it on a shirt, and the colors look faded. The purple turns into a light lavender, and the blue looks dull. Why did this happen? The printer changed your rgb file to cmyk, and some colors did not come out the same. Common Color Issues in Digital Printing Your digital printing machine can have color problems if you do not set up your files and settings right. Here are some common problems: Color Issue Description Dull or Off-Tone Colors Colors appear lifeless or skewed due to paper choice, ink levels, or printer settings. Streaks or Banding Visible streaks in solid color areas indicate uneven ink application, often due to printhead issues. Printed Colors Don’t Match the Screen Mismatches occur from inconsistent color management throughout the design and printing process. You might see dull colors if you use the wrong substrate or if your digital printing machine is low on ink. Streaks or banding can happen if the printhead is dirty or not lined up. The most annoying problem is when printed colors do not match your screen. This usually happens if you designed in rgb and did not change to cmyk, or you used the wrong color profile.   Here are some technical reasons why colors look different between your digital printing machine and your screen: Reason Explanation Color Space Differences Digital designs use rgb color space, while printing uses cmyk, leading to shifts in hue or vibrancy. Device Calibration Regular calibration of monitors and printers is necessary to ensure accurate color reproduction. Printing Machine Variations Different machines and ink types produce varying color outputs, even among the same model. Substrate Effects The type and texture of paper affect color appearance, with absorbent papers showing dull colors. Environmental Conditions Colors can look different under various lighting, impacting the final print's appearance. File Preparation Errors Incorrect color profiles can cause misinterpretation of colors by printing machines. Proofing Oversights Uncalibrated monitors and differences in proofing devices can lead to mismatches in color. Human Errors Variability in color perception and misunderstandings can lead to errors in color selection. Aging of Printed Materials Over time, printed materials may fade, altering their appearance compared to the original print.   You need to watch every step in your work. If you skip color space changes, you might get dull or weird colors. You should know the differences between rgb, cmyk, and Pantone colors to get the best results from your digital printing machine. Color problems often mean you have to print again, which wastes time and money. Many print jobs need to be redone because the colors do not match what the customer wanted. Bad color matching or too much color can cause jobs to be rejected. You want to avoid these problems by managing your color steps carefully. The environment matters too. Temperature changes how ink works. If it is too hot or cold, prints can look different. The best temperature for printing is between 65°F and 75°F for good color. High humidity can make paper bend and cause blotchy prints. Low humidity can make paper dry and jam. You should keep humidity between 40% and 60% to stop ink from bleeding and paper from curling. How fast ink dries depends on both temperature and humidity, which changes the final print.   The Role of Colour Management You need a good color management system to get the same results every time from your digital printing machine. Color management software helps you match colors across different devices. This makes sure the colors on your screen look the same as your digital printing machine prints.   Here are some ways color management software helps you: Makes sure colors are the same on all devices, so your prints match your digital designs. Keeps colors even across projects, which is important for repeat orders. Cuts down on waste and saves time by stopping mistakes that waste supplies. Meets customer needs by making sure printed designs look like what they wanted. Works for many uses, so you can print well on different materials. Making your color steps better improves your printed products. It makes things faster and more efficient. It cuts waste, which saves money. It makes customers happier because colors stay the same. Benefit Description Improved customer satisfaction Better color match leads to higher satisfaction among clients. Reduced reprints and waste Efficient color management minimizes the need for reprints, saving resources and time. Streamlined onboarding New jobs and clients can be integrated more smoothly into the workflow. Enhanced market reputation Companies become recognized as reliable color partners, boosting their competitive edge. As Kerry Malony of Fiery said, “If you don't have professional color management or you don’t use it right, you’re going to have problems. Big problems like waste, lost customers, and a loss of reputation.” You should follow standards like G7 and ISO to keep colors even and correct. These standards help you meet client needs with fewer mistakes and reprints. They help you build trust with clients by giving them the same color results every time. Here are some steps you can take to make color management better with your digital printing machine: Calibrate your monitor and printer often to keep colors right. Use the right color profiles for your digital printing machine and substrate. Change your designs from rgb to cmyk before printing. Check your designs in cmyk mode to find color problems. Pick substrates that make colors look bright and fit your project. Control the environment in your print area to keep colors correct. You can get even and bright prints by following these steps. Your digital printing machine will make colors that match what you want and make your customers happy. Note: Color management is not just about software. It is about knowing how rgb and cmyk work together, picking the right materials, and controlling your environment. You need to pay attention to every detail to get the best results from your digital printing machine. You want your prints to look as good as your digital designs. By learning about rgb and cmyk, managing your color steps, and using your digital printing machine the right way, you can stop off-color results and make high-quality prints every time.   ICC Profiles and Accurate Color Management What Are ICC Profiles? You use digital printing machines a lot. You want your prints to look just like your designs. ICC profiles help you do this. ICC profiles are files that show how devices make colors. These profiles work like translators for images. They help keep colors the same on different devices. ICC profiles match the colors in your image to your printer or monitor. This helps stop color mistakes and keeps colors right. ICC profiles help your software change colors for each device. You need ICC profiles for color management when color must be exact. ICC profiles are needed for good and even color in printed things. You should know the color space of your printer and monitor. Each device has its own color space. ICC profiles help you match colors between these spaces. You put ICC profiles in your images. Your color management system uses these profiles to keep colors the same from screen to print.   Why Accurate ICC Profiles Matter You want your prints to look how you expect. Good ICC profiles make this happen. When you use the right profiles, you get even results. ICC profiles help by matching colors in your image to your device. They help stop color mistakes between devices. Without ICC profiles, colors may look different on your monitor or printer. This can cause problems in jobs like photography and design. You should follow rules for ICC profiles. GRACoL® sets rules for quality and even color in printing. ICC profiles help set color rules for devices. This helps screens and printers match colors. You must use the right ICC profiles for your printer, ink, and paper. Making custom profiles with a colorimeter or spectrophotometer helps make colors more exact. For printers like Epson, you need to set color settings in the printer driver. You should check your profiles often to keep them correct. If you print a lot, check profiles every week or month. Office printers need checks a few times a year. If things change, check profiles as needed. Scenario Recommended Frequency High volume printing Weekly or monthly General office printers A few times a year Environmental changes Recalibrate as needed You should print a new chart when you use new ink. You need to check and print again when you get a new printer. Checking every six months helps keep profiles correct.   Troubleshooting ICC Profile Issues You may have problems with ICC profiles. Wrong or old profiles can cause color mistakes. If profiles are missing, your printer may not read color data right. You need to find and fix these problems fast. Cause of Issue Description Incorrect ICC Profiles Using the wrong ICC profile for the printer, ink, and paper can lead to color translation errors. Missing ICC Profiles If the necessary ICC profiles are not available, the printer may misinterpret color data.   You may see color changes or lines in your prints. You need to fix these problems. Try these steps to fix color problems from ICC profiles: Step Description 1 Check color settings to make sure they are right. 2 Change ICC profiles to match what you want. 3 Fix printheads to make color output better. 4 Look at colors in daylight to avoid mistakes from indoor lights. 5 Print a nozzle test to find missing nozzles that cause color changes. Lines in prints often come from ICC profile problems. You can fix these by doing a few things: Check profile bit depth. Set your ICC profile to 16-bit color depth for smoother color transitions. Match profile to device. Make sure your ICC profile fits your printer and media. Reset color management settings. In your design software, reset the color management settings to apply the correct profile. You may make mistakes when setting up ICC profiles. Common mistakes are picking the wrong profiles, not checking monitors, and using the wrong rendering intents. "If you don't select the correct ICC profile, the image can come out looking completely different," says Jay. You need to check your monitor before using ICC profiles. You must use profiles made for your printer and paper. You should pick the right rendering intent for your project.   Setting Up Profiles for Your Digital Printing Machine You want to set up ICC profiles the right way for your digital printing machine. You need to use the right profiles for your printer, ink, and paper. Making custom ICC profiles with a colorimeter or spectrophotometer helps make colors more exact. You should set color settings in your printer driver, especially for brands like Epson. You need to follow good steps for ICC profiles: Use the right ICC profiles for your printer, ink, and paper. Make custom profiles with a colorimeter or spectrophotometer for better accuracy. Set color settings in your printer driver. Check your monitor and printer often. Update profiles when you change ink, paper, or printer. Check your output profiles to make sure they fit your device color space. You should go to training to learn ICC profile setup and color management. Training at Caldera’s facilities gives you a good place to learn. On-site training gives you lessons at your work. Online training gives you quick lessons on CalderaRIP. GMG workshops teach color management and proofing for all skill levels. These workshops teach color basics, measuring, rules, and proofing. You learn by doing with help from experts. Training Type Description Training in Caldera’s facilities Get trained in a proper learning environment. On-site training Tailored training sessions directly at your workplace. Online training Get fast and effective training on CalderaRIP. GMG workshops teach color management and proofing. Good for beginners and experienced people. Teach color basics, measuring, rules, and proofing. You learn by doing with expert help.   You need to know the color space of your printer and monitor. You must use output profiles that fit your device color space. You should update profiles often to keep them correct. You need a color management system to keep colors the same on all devices. You want your prints to look professional. You need to use good ICC profiles, check your devices, and follow good steps for color management. You should go to training to get better. You must check your output profiles and device color space often. You need to update profiles when you change ink, paper, or printer. You should use a color management system to keep colors the same. You want to get color accuracy and keep profiles correct in every print job. You can get good at ICC profiles and color management with practice and training. You need to pay attention to checking, device color space, and output profiles. You should use good ICC profiles and update them often. You want your prints to look like your designs every time.   You can get good print results if you learn about color spaces and use ICC profiles. If you check and fix your profiles often, you can stop colors from changing or looking wrong. Follow these steps to make your prints look bright and the same every time. If you do things the right way, your digital prints will look just how you want. FAQ Why do colors look different on my screen and in printing? Your screen shows colors using light. Printing uses ink on paper. These use different color spaces. That is why colors may not look the same. How can I make sure my printing matches my design? Change your design to CMYK before you print. Make sure your monitor and printer are calibrated. Use the right ICC profiles for your printer setup. What causes streaks or banding in printing? Streaks or banding can happen if the printhead is dirty. Low ink or wrong ICC profiles can also cause problems. Tip: Check your printer’s maintenance schedule often to stop problems. Using different substrates can change how colors look. High humidity can make ink bleed on the paper. Old ICC profiles can make prints look wrong. Printing Issue Quick Solution Off-color printing Update ICC profiles Dull printing Use correct color space Streaky printing Clean printhead Printing needs careful setup to look good. Using the right settings and profiles helps your prints turn out well. Skipping color management steps can cause mistakes. Using the wrong paper can change your colors. Bad lighting can make it hard to see the real print colors. If your devices are not calibrated, colors may not match. Old software can make printing errors. Not proofing your work can cause color problems. Using the wrong ink can make prints fade. Printing too fast can make smudges. Low-quality images can look blurry. Not controlling the environment can change drying time. Wrong rendering intent can shift colors. Mismatched device profiles can confuse color translation. Bad resolution can make details look fuzzy. The wrong substrate soaks up ink in a different way. Poor maintenance can cause more printing problems. Wrong temperature can change how ink works. If your workflow is not steady, results can change each time.   Choose Haotian Corp and Say Goodbye to "Color Anxiety" At Haotian, we understand that color is the soul of your design. We don't just print; we restore the integrity of your artwork. Don't let poor printing quality ruin a great design. Experience true, professional full-color digital printing.  

Taking care of your digital printing machine helps you save money. It also stops surprise problems from happening. Regular maintenance makes your equipment last longer. It keeps your dtf printer working well. If you check and clean your equipment every day, you can find small problems early. This stops them from becoming big problems. Machines that get regular maintenance can last 2-3 times longer than machines that are not cared for. Finding problems early stops big breakdowns and saves money. For example, one printer worked very well for over 2 million pages because it got regular care. You can get more use from your machine if you take care of it every day. Key Takeaways Doing regular maintenance helps your digital printing machine last much longer. This can save you money over time. Cleaning and checking your machine every day helps you spot small problems early. This stops big repairs and keeps your printer working well. Checking ink and cleaning print heads often gives you better prints. This stops problems like lines or missing colors. Making a schedule for daily, weekly, and monthly tasks helps you stay on track. This keeps your printer working its best. Getting a professional to check your printer twice a year finds hidden problems. This protects your machine and keeps it working well. Why Maintenance Matters Benefits for Digital Printing Machines You want your digital printing machine to work well each day. Doing regular maintenance helps you reach this goal. Taking care of your equipment stops many common problems. Manufacturers usually suggest these steps: Cleaning often keeps dust and ink residue from hurting print quality. Checking your machine helps you find worn parts like print heads and rollers. Changing parts on time keeps your machine running well and stops breakdowns. If you do maintenance, you get more than just a working printer. You get better prints, fewer repairs, and a machine that lasts longer. The table below shows how maintenance helps your machine: Benefit Description Improves Print Quality Regular care gives you good prints by stopping problems like banding and ink smudges. Reduces Downtime Checking your machine early finds problems, so it does not break down without warning. Extends Equipment Lifespan Taking care of your machine helps it last longer and saves you money. Boosts Efficiency A well-cared-for machine works faster and uses less energy. Lower Operating Costs Doing upkeep means fewer big repairs and less waste, so you save money over time. Impact on Print Quality You want every print to look clear and professional. Maintenance is very important for this. When you clean your dtf printer and check it often, you get good prints every time. Dust and dried ink can make streaks or faded spots. If you do not fix these, your prints will look bad. With regular care, your machine stays in great shape. You stop problems like banding, smudges, or color changes. This means your customers get good prints, and your business keeps a good name. Good maintenance also helps your printer work the same way every time, so you can trust it for every job. Tip: Always check your machine before and after each print job. This easy step helps you find small problems early and keeps your prints looking great. Daily Cleaning and Inspection It is important to keep your digital printing machine working well. Cleaning and checking it every day helps you find problems early. This keeps your equipment in good shape. If you do these steps, you can stop expensive repairs. You will also get good prints each time. Cleaning Print Heads Your dtf printer needs clean print heads for sharp prints. If ink dries or dust builds up, you may see streaks or missing colors. Clean the printer head after 10-15 prints or every 100 hours. If you see bad prints or extrusion problems, clean the print heads right away. Cleaning often stops clogs and helps your printer work well. Tip: Use cleaning solutions your manufacturer suggests. Always rinse the CAP system with distilled water so clogs do not happen. Print Head Cleaning Checklist: Take the machine out of standby before cleaning. Use the correct cleaning solution for your dtf printer. Rinse the CAP system to clear ink residue. Do a nozzle test and write down the results. Cleaning Task Description Clean print heads and ink lines Use cleaning solutions from the manufacturer to keep print quality high. Rinse the CAP system Take out and rinse the CAP system with distilled water to stop clogs. Conduct a nozzle test Do a nozzle test and keep records to check print head performance. Checking Ink and Consumables Check ink levels and consumables every day. If you run out of ink or use old ink, your dtf printer will not print well. Look for air bubbles in ink tubes. These can block ink and cause missing colors. Make sure ink is fresh and stored right. If printheads look worn or damaged, replace them if cleaning does not help. Sign of Issue Description Air bubbles in ink tubes Air bubbles can block ink flow and cause missing colors. Ink supply issues Ink might be old or stored wrong, or there may be problems with dampers or tubes. Worn out or damaged printhead Some nozzles may stop working after lots of use, so replace them if cleaning does not help. Note: Always empty waste tanks and check ink levels in sub-tanks before you start printing. Inspecting Rollers and Belts Rollers and belts move prints through your dtf printer. If these parts wear out or break, your equipment will not work right. Check rollers and belts for damage every day. If you see cracks, fraying, or uneven movement, change the part before it causes bigger problems. Look for cracks or worn spots on rollers. Check belts for fraying or stretching. Make sure rollers and belts move smoothly when working. Tip: Tighten loose fasteners and keep parts clean to stop breakdowns. Maintaining a Clean Environment Your printing area affects your equipment and print quality. Dust, humidity, and temperature changes can hurt your dtf printer. Keep the room between 20-25 °C and humidity between 50-70%. Clean around your machine every day. Remove dust from surfaces and keep tools neat. Daily Environment Checklist: Wipe surfaces near your printer. Keep the floor clean to stop dust from building up. Store ink and consumables in a cool, dry place. Keep the right temperature and humidity. Callout: Operators who know their equipment and follow safety rules can stop contamination and keep their digital printing machine working well. If you do these daily cleaning and checking steps, you will protect your equipment. You will get better prints and help your dtf printer last longer. Routine Maintenance Tasks Routine maintenance tasks help your digital printing machine work well. These steps stop problems and help your equipment last longer. They focus on dtf printer maintenance. You get good prints every time if you do these tasks. Nozzle Checks Nozzle checks are very important for dtf printer maintenance. You should check the nozzles every day before printing. This helps you find clogs or ink flow problems. Clean nozzles make prints look sharp and stop streaks. Nozzle checks can: Help you find clogs early. Keep colors and details the same. Stop wasted prints and extra cleaning. Help your equipment last longer. You can use the nozzle check function on your printer. Print a test pattern and look for missing lines. If you see gaps, run a cleaning cycle. Test again until the pattern looks right. Tip: Use good filaments and inks. These have fewer bad things in them. This helps stop nozzle clogs and makes dtf printer maintenance easier. Firmware Updates Firmware updates are needed for good dtf printer maintenance. New firmware helps your equipment work better and safer. Old firmware can cause print problems and slow your printer down. Old firmware can cause: Bad print quality from wrong ink drops. Slow speeds that hurt how your printer works. More risk of cyberattacks on your equipment. Check for firmware updates every month. Follow the maker’s steps to install updates. This keeps your dtf printer safe and working well. Note: Always save your printer settings before you update firmware. This keeps your custom profiles safe and your work smooth. Electrical Component Inspection Electrical parts need checks as part of dtf printer maintenance. Bad wires or sensors can stop your equipment or mess up prints. Check these parts every week. Step-by-step inspection: Use vision systems to watch print quality live. Check color with tools to keep it the same. Look at digital files before printing to stop mistakes. Check variable data with barcode readers or OCR. Test printheads and nozzles for clogs. Check finished prints for mistakes. Connect your printer to software for tracking. Callout: Regular electrical checks help you find problems early. This keeps your dtf printer running and stops downtime. Lubricating Moving Parts Moving parts like rods and bearings need oil to work well. This is a key part of dtf printer maintenance. Oil these parts every 500 to 1,000 printing hours. If you hear squeaks or feel stiffness, add oil right away. Oil rods and bearings every 1,000 hours. Use the oil your maker says to use. Wipe off old grease before adding new oil. Write down each time you oil the parts. Tip: Clean moving parts before you oil them. This takes away dust and dirt. It helps your equipment last longer. Avoiding Overuse and Underuse Do not use your dtf printer too much or too little. Too much use can wear out parts fast. Not using it enough can dry ink and clog the system. Make a good schedule for printing and maintenance. This helps your machine last longer and work well. Routine maintenance tasks like nozzle checks, cleaning, and inspections help your equipment last longer. You get better prints, fewer problems, and more value from your machine. Make dtf printer maintenance a habit for the best prints and results. Maintenance Schedule Making a clear maintenance schedule helps your printer work well. You can use a maintenance equipment history card to track tasks. This helps you see patterns and plan for future care. Many print shops use special software to help with this. Daily Tasks You should use a daily dtf printer maintenance checklist. These steps help stop problems and keep prints looking good. Flush the print head with cleaning fluid. Do nozzle checks every day to find clogs. Keep white ink moving to stop print issues. Check ink levels and empty waste tanks. Wipe surfaces and cover the printer when not used. Keep the room at 22–26°C and humidity at 40–50%. Tip: Doing daily care keeps your dtf printer ready for work. Weekly Tasks Weekly checks help you find small problems early. You should: Look at rollers and belts for damage. Clean the encoder strip and film sensors. Test safety features and electrical parts. Oil moving parts if needed. Check your schedule and update your history card. A weekly routine helps your printer make better prints and last longer. Monthly Deep Clean A monthly or quarterly cleaning gives your printer a fresh start. Use this time to clean deeply and check all parts. Procedure Steps Film Path Cleaning Clean rollers, check encoder strip, clean film sensors. Mechanical Systems Check Check belt tightness, oil parts, check electrical connections. Deep cleaning helps your printer last longer and keeps prints looking good. Professional Servicing You should get professional servicing two times a year. This is extra important for second-hand dtf printers. A trained technician can find hidden problems and fix them. This step protects your printer and helps it work well. Note: A good schedule with daily, weekly, and monthly tasks helps your printer give great prints every time. Preventive Maintenance Issues Common Problems Avoided You can avoid many problems by following a good maintenance plan for your dtf printer. Regular care keeps your digital printing machine running smoothly. The table below shows some common issues you can prevent: Preventive Maintenance Issue Description Regular Printer Cleaning Routine cleaning stops dust, scraps, and ink from hurting print quality. Proper Consumable Storage Good storage keeps ink, toner, and paper in top condition for your printer. Follow Manufacturer Guidelines The manual gives you the best advice for your dtf printer and its schedule. If you clean your dtf printer and store supplies well, you will see fewer jams and better prints. You also lower the risk of sudden downtime. Troubleshooting Tips When your dtf printer has a problem, you can try some simple steps before calling for help. These tips help you fix small issues and keep your printer working: Read your dtf printer manual for common problems. Always follow safety rules when you open your printer. Write down any problems that happen often. Clean your dtf printer by hand if the auto-clean does not work. Check your printer settings to match your print job. Run a test print every two weeks to keep ink from drying. Store your dtf printer in a clean, dry place. Tip: Run cleaning cycles every month to stop clogs and keep your dtf printer in good shape. When to Call a Technician Sometimes, you need a professional to fix your dtf printer. Call a technician if you see these signs: The printer makes strange noises or stops working. You see error messages you cannot clear. Cleaning and basic steps do not fix the problem. You notice electrical smells or sparks from the machine. Print quality stays poor after you try all troubleshooting steps. A trained technician can find and fix problems that you cannot solve. This keeps your printer safe and helps you avoid long downtime.   You can keep your digital printing machine in good shape with regular care. Clean and check your dtf printer every day to stop big problems. This helps you avoid spending lots of money on repairs. If you look after your dtf printer and clean the print heads, it will last longer. You also stop parts from wearing out too fast. Benefit Description Reduced Downtime Regular care finds problems early. This stops breakdowns and keeps your printer working. Extended Equipment Lifespan Taking care of your printer helps it last longer. You do not need to buy new parts as often. Cost Savings Good maintenance saves money. You can spend 12% to 18% less on fixing your printer. If you take care of your dtf printer, it works well for a long time. You save money and get better prints each time.