There are several options for reducing ink consumption in the printer cartridge. These include changing the printer settings by lowering the brightness and fill values, switching to other inks, and lowering the maximum fill rate during image creation.

The standard way to reduce ink consumption is to turn on the printer's economy mode. To change these settings, you need to go to an open document and go step by step through the categories printing, printer properties, printing options, graphics. Next, in the field called printer saving mode, you need to check the box to the value “On” or open this tab in the field called density, check the box on the light value.

Some models of printers or MFPs allow users to set the necessary settings for the printing device itself on the monitor. You must select the appropriate category in the menu and use the arrows or the + or - buttons to set the required parameters. Next, you need to confirm your choice using the Menu or Ok buttons.

Not the best way is to reduce the brightness and fill values ​​in the application of the printing device. Doing so may cause color imbalance and result in incorrect color reproduction. The most suitable option is to replace the fill value at creation time ICC Profile separately for all materials. However, when making these adjustments, do not go overboard with the toner saving rate. So, at a low value of optical density, the juiciness of the prints, as well as their opacity, may suffer.

When using insufficient quality ink, problems may appear in the form of print defects, sharp step transitions from light tones to dark ones. This is due to the presence of some heavy metals in the ink. Large and trusted ink suppliers simply do not have such a problem in the production of ink. Therefore, the best option is to buy quality inks, and although their cost is higher, they have a greater resource for reducing density without losing color gamut.

In addition to the settings of the printer and the use of high-quality ink, frequent cleaning of the print heads can be the reason for their overuse. If you use volatile cleaning solvents, the nozzles may dry out. The result of this is the consumption of a large amount of ink into the empty, while they do not even get on the surface of the paper. Frequent cleaning when printing has the effect of reducing printing speed. This again raises the question of the quality of the ink used.

You most likely had to replace color ink cartridges and also wondered how to reduce printing costs. Everyone knows that color ink cartridges are inherently more expensive than black ones, so many people have a need to save ink when printing images for as long as possible, and we will tell you how to do this.

#1: Avoid excesses.
The simplest and most fundamental piece of advice we can give about saving ink when printing images is to avoid excess. A single photo or an image reprinted many times can cost you tons of money.

If you want to see how the image will appear on paper, we recommend the following:

• reduce the image size and make a sample print;
• print in draft form first;
• print a contact strip to see multiple images at once.

#2: Reduce saturation.

This is something any photography or design professional can tell you. By reducing the color saturation in your images, you will use less ink. Color saturation basically depends on how much color is present in the image in relation to the background.

Needless to say, if the color saturation is high, then your printer will put more ink on the paper. Using this technique is useful if you don't need your photo prints for an exhibition.

#3: Print in grayscale.

What happens if you reduce the color saturation in your images to zero? Your images will go into monochrome or grayscale format.

It's worth noting that many printers tend to use color inks, even when printing in monochrome, to make blacks "richer".

Therefore, if you are going to print images in grayscale, you need to make sure that the settings that indicate the use of color ink on the printer are disabled.

#4: Lower your DPI settings.

DPI stands for dots per inch (resolution). The more dots there are per inch, the better the quality of the final print will be. However, the higher the resolution, the more ink you will use.

Often resolution options can be found in the printer's settings menu. However, in situations where such a feature is not available, you need to use a third-party photo editing program to make changes to the resolution of the image you want to print.

#5 Use compatible inks.

It's no secret that color prints require more ink than monochrome prints. The facts are that color prints require 30 percent more ink than monochrome prints.

If you can't do without printing color images, that means you'll spend about a third more.

Compatible inks are almost always significantly cheaper than original inks because third-party manufacturers don't have to make up the losses they've made by selling printers at one-time prices. Also, for a long time compatible inks are not inferior in quality to the original ones, a vivid example of this is OCP, Bursten and Ink-mate inks.

Electronics manufacturer Cooler Master has a range of hardware products such as keyboards, power supplies, headsets, computer (PC) cases, mice, and of course coolers. Each of its products has been custom designed based on community feedback. Including keyboards. Cooler Master even had a Kickstarter project, an analog keyboard with pressure-sensitive keys called the ContolPad. With that said, let's take a closer look at what can make the new Cooler Master SK621 keyboard special to the user.

Keyboard news: Cooler Master SK621 review - a mechanical wireless keyboard with a separate wired option.

The first thing that is noticeable during the review is the ability to conveniently pair the wireless keyboard with three different devices. Connecting a device is as simple as holding the function button and Z, X or C. This feature makes it very easy to switch from using your phone to using your computer. Turning on the Cooler Master SK621 keyboard is also easy. Either connect it via a USB Type-C cable, or activate a very simple switch to wireless mode on the left side.

Specifications of Cooler Master SK621 Wireless Keyboard:

Can display a wide variety of colors (shades) to any key, adjust lighting modes, or set up macros with software coolermaster.

When using the SK621 for the first time, it is recommended to connect to a computer via USB Type-C and install the Cooler Master Portal. This will allow you to control various lighting effects and wireless keyboard settings. It is possible to create preset profiles, which makes it easy to switch between profiles when using elements. You can also adjust the lighting effects with the controls, but the portal mentioned above is more user friendly. The wireless keyboard setup is very easy to use and has many combinations. There are options - adjusting the speed, direction and brightness of the keyboard backlight effects.

Macros can also be programmed. It's also worth adding that all functions such as RGB lighting, macros and controls are available when using the SK621 via a Bluetooth connection. Time battery life the wireless keyboard is also impressive. It may take a couple of full working days before the indicator turns red, indicating that the battery is low. Charging the SK621 wireless keyboard is also easy. Just connect your keyboard via USB Type-C. The keyboard can still be used as a wired keyboard as long as the cable charges the keyboard battery.

The body of the keyboard is crafted from polished aluminum, making it lightweight, durable and providing excellent appearance. There is also a nice smooth accent on the edge of the aluminum which adds a touch of elegance. The keys are made of plastic and don't have much texture.

The low-profile Cherry MX keys are quiet enough for office use. The key switches are incredibly responsive, and using the Cooler Master SK621 wireless keyboard takes some practice. This is because the keys register a press to the nearest millimeter or less.

The SK621 keyboard is designed compact, it is quite portable. A nice addition is a velvet bag. It's definitely made for gaming thanks to the Cherry MX keys, but it's easy to use for work.

The Cooler Master SK621 does everything it's meant to do. However, the keys are great for gaming, but too sensitive for typing. Plastic keys are also prone to oil stains on the fingers, so eating while playing can be tricky. Maybe if the keys had some sort of oil resistant coating or more texture, the oil prints wouldn't be as pronounced.

Cooler Master SK621 Wireless Keyboard Features:

Brushed aluminum body design;

Flat brushed aluminum keyboard top, floating keycaps and a slim, minimalist chassis design.

Color keyboard backlight (RGB LEDs);

Individual key illumination with LEDs and a customizable surrounding LED ring.

Hybrid wired and wireless;

Connect up to three devices via wireless technology Bluetooth 4.0 or wired connection and battery charging at the same time.

Minimum keyboard layout by 60%;

We can say that this wireless mini keyboard has a unique design for maximum portability.

Easy to use software.

Low profile Cherry MX keys;

The reduced travel distance and actuation point functions with the same durability and accuracy (according to the wireless keyboard manufacturer).

Available controls;

In real time, you can customize the keyboard backlight and macros without the need for software.

Summary of Cooler Master SK621 Wireless Keyboard:

Overall, the electrical and keyboard manufacturer Cooler Master has exceeded all expectations. This is especially impressive due to the fact that it can make for a really interesting wireless keyboard. The SK621 features multiple lighting effects and customization, a compact design and a host of user-friendly features. Using the SK621 at work and then bringing it back home to play can make the gadget a favorite wireless keyboard for almost $200 USD.

The ETH Zurich (ETH Zurich) has unveiled the details of "Concrete Choreography", an installation recently opened in Riom, Switzerland. The groundbreaking installation features the first robot-built 3D printed concrete stage, consisting of formworkless columns 3D printed to full height in 2.5 hours. This process is expected to significantly increase the efficiency of concrete structures while achieving the fabrication of complex material components and construction robots.

3D printing news: ETH Zurich creates concrete columns with a special concrete 3D printer.

In the Swiss Riom, at the Origen festival, nine columns 2.7 meters high are installed. Each column is 3D printed with concrete. The new columns were individually designed using special software and manufactured using a new automated concrete 3D printing process developed by the ETH Zurich team with support from NCCR DFAB.

3D printing from concrete

Students in the MA in Digital Manufacturing and Architecture explore the unique possibilities of multi-layer extrusion printing, demonstrating the potential of computer-aided design and digital fabrication for the future of concrete construction. Perhaps the construction industry this process will become more environmentally friendly in the future if they develop new eco-concrete for 3D printing.

Video review of 3D concrete printing: Concrete choreography.

Here's how easy and fast concrete 3D printing works.

3D printing of houses, concrete buildings is a perspective for construction.

Hollow concrete structures are printed for the strategic use of materials, providing a more sustainable approach to specific architecture. In addition, the calculated material structure and surface textures are an example of the versatility and significant aesthetic potential of concrete 3D printing when used in large-scale structures.

The new review will be about printing on a 3D printer with metal.

It is worth noting that there is a technology that would carry out 3D metal printing. This is also a promising direction for construction, but other materials (for example, powder), programs and other types of printers are used for this (which we will talk about soon).

What color is your mobile phone? Is it black, red, white, gold or blue? Most likely, rear end your phone has some kind of single color variant that you will find in the beginner coloring set. It's taken too long for most phone manufacturers to realize that phone colors really matter to customers, and it's only recently that they've started giving mobile phones not only a rarely used color, but fancy hues like coral red or canary.

Honor News: With the new 3D holographic color phones from Honor, it's possible to add some new color to life.

Unsurprisingly, most people don't mind hiding the backs of their phones behind opaque plastic cases. In cases, the user can choose the appropriate color of the phone case to give the mobile a bit of personality. But the new Chinese Honor 20 Pro and Honor 20 series phones are the world's first smartphones with a 3D dynamic holographic design, and their reflective exterior could become the new industry standard.

"Always better" is the motto of the company. Perhaps this motto indicates that she refuses to follow the industry standard, simply experimenting with layers of paint when creating each new phone model.

Color 3D holography for phone case.

In order to achieve a shimmering optical illusion for the body of the phone, manufacturer Honor has designed its Honor 20 with a depth layer containing millions of shimmering microscopic prisms, and on top of this is placed a so-called 3D curved glass layer. The combination of these technologies makes the light "play and dance" on the back of the phone when the user turns it in different directions.

Two colors for the Honor 20 phone can be found under these dynamic layers, they are Midnight Black and Sapphire Blue ( Sapphire Blue). Unlike the newfangled phrases for some phone colors, the mobile Honor has color gradients for phones that really evoke the effect of a shimmering night sky or a shimmering gem.

Although the color options of the cases sound exciting, with the Chinese phone Honor 20 Pro, you can go even further. This upgraded model contains the proprietary "3D Triple Mesh" containing three layers. Instead of just painting back panel of the phone itself, this time with a body color layer, sandwiched between the outer 3D layer and the inner depth layer. According to the handset manufacturer, this makes the color shift effects much more dynamic.

The Honor 20 Pro mobile phone is actively sold in two colors such as phantom black (Phantom Black) and phantom blue (Phantom Blue). Although the names of these phone colors are not so metaphorical, you should not think that their rear panels are less dynamic.

Honor's obsession with picking the right colors might seem overly dramatic, but in the UK, for example, a survey of hundreds of Britons found that forty-nine percent of them consider color when choosing a phone to buy.

What is the sale of a phone with a changing color scheme for?

The choice of a mobile phone, as Honor designer Jun-Soo Kim put it, is "Prolonging a person's life." In essence, Honor is stating that customer identities cannot be captured by one unchanging color.

The history of the creation of color phones Honor.

The Honor 20 shows a natural evolution of the company's experimentation with dynamic color in phone design. With the Honor 8, the trend of a 2.5D layered back wall, which creates a 3D lattice effect, began. The Honor 9 version then evolved into a phone with 3D curved glass, echoes of which can be found on the Honor 20. Well, last year the Honor 10 featured an Aurora back glass that reflected colors from all sides.

What is it, the screen in the Honor phone?

Honor's design innovations are not limited to the color of the phone's body. It is worth paying attention to the placement of the Honor 20's camera. Instead of cropping the screen to make room for the "selfie" camera. The phone manufacturer has cut a 4.5mm hole in the top left corner of the screen, leaving more screen real estate for the user's needs.

AI camera or AI camera on your phone.

On the phone's description, it's worth noting that on the back of the handset, the Honor 20's AI camera has four lenses and is positioned to leave more space for the battery with more storage. But most importantly, the result is a 48-megapixel camera that uses the Kirin 980 AI microchip to take DSLR-level stills and enhance photos.

Honor phone color summary.

In summary, phone descriptions, technical compatibility, and cutting-edge hardware innovation are what usually draw attention to Chinese Honor phones. But, in this case, the technology is almost dwarfed by the uniquely colored case design, which may make some users reluctant to go back to plain 2D phone case colors in the future.

Rumors about the release of the Google Pixel 4 mobile phone continue to arise. A new set of information or predictions comes from an image leaked on the Internet (3D rendering of colored cases) that is believed to be of the Google Pixel 4. It is not uncommon for users to follow behind the topic of novelties, such images are overlooked. Meanwhile, for some analysts new picture helps to make some assumptions not only about the color of the phone.

A new, unofficial image of the Google Pixel 4 gives rise to rumors about the color options of the mobile phone's body.

While another image of the phone's body itself doesn't seem to show any more than what's been discussed online before, the model seen in the background of the photo is surprising because of the color. That mobile phone has a shade of magenta that the Pixel model didn't have before.

Elsewhere, there have been other leaks of the same Google Pixel 4 with "three phones" (variants) stacked in a row. There are white and black colors plus a third has a bluish tint that some call mint green. Would you like to buy a blue phone? Probably the name of the colors of the phone will still be updated.

Whatever the phone's color leak may be true or false, it's safe to assume that this year's new Google Pixel 4 will definitely feature an additional color. More interestingly, in the image, the physical buttons on the sides of the phones contrast with the body color. You can see white, blue and yellow buttons that give the phone a fun look.

For some weird reason, all the images and leaks seen so far have only shown the back of the Google Pixel 4 smartphone. According to various sources, Google allegedly shared a rendering of the phone, and there was also a part where the square camera bump was featured. The double camera block was visible.

The leaked photos in question, including the image along with the cases, show the rear panel in different colors and the camera module. What do you think is the best phone color?

Pro specifications Google Pixel 4:

Obviously, the idea of ​​a fingerprint scanner does not leave fans alone. Some wish the phone had either face ID to unlock the phone, or an in-display fingerprint scanner, or both.

Some other aspects and specifications, such as the dimensions of the phones and the overall thickness of 8.2 millimeters higher than the 7.9 mm seen in the Google Pixel 3 and Pixel 3 XL, can be taken as close to reality.

There is speculation that Google's Pixel 4 and Pixel 4 XL versions of the phone may be more like a variant of " Apple iPhone 11", which is scheduled to be released in a couple of months, in the fall. When, exactly? Tech company Google has yet to announce an official release date for the Pixel 4, but various sources are hinting at a release of the new phone at the end of October.

Soon, we will talk about this in more detail, so stay tuned for news about new smartphones from Google.

The robot set the world record for solving the Rubik's Cube. This robot was developed by MIT students Jared Di Carlo and Ben Katz in a student lab. In comparison, the fastest human record is held by Australian Felix Zemdegs, who in 2018 solved the Rubik's Cube in just 4.22 seconds. By the way, the original size Rubik's Cube has 43 quintillion possible combinations for one solution. Watch the video with the record holder robot below.

Robotics News: Nimble MIT Robot solves Rubik's Cube in a world record time of 0.38 seconds.

There is a special place in the hearts of many people for the Rubik's Cube. This is a good workout for the intellect. Many have loved or still love to play with this ingenious toy, and over the years there have been many contests, challenges and variations on the Rubik's Cube solution.

The popularity of the Rubik's Cube can be attributed to the simplicity of its design, combined with the mind-boggling difficulty of the puzzle.

New record for solving Rubik's Cube 3x3x3.

Engineers and hobbyists have been using robots to solve Rubik's Cubes for years. 10 seconds used to be considered a quick build, but by today's digital age standards, that time is a smile.

A new record was only a matter of time before engineers and roboticists began to tackle the challenge of creating a new robot. Back in 2016, a robot set a new record for solving a Rubik's Cube in 0.637 seconds. But for some enthusiasts, that time wasn't fast enough.

More recently, two MIT students, Jared Di Carlo (third-year electrical and computer science student) and Ben Katz (mechanical engineering graduate student), thought they could build a faster robot that could solve a 3D combination puzzle.

They looked at videos of previous robots and noticed that the robots' engines weren't the fastest they could use to solve the problem. So we thought we could do better with better engines and controls.

How does a robot collect a Rubik's Cube

The students installed an electronically controlled motor that powers each face of the Rubik's Cube. Using a pair of webcams pointed at the cube, special software determines the initial state of each side of the cube (what colors are on which side of the cube at a given time). Then, based on the information received, using the already existing software for solving the Rubik's Cube, the robot solves puzzles using the algorithm.

What is the result of the work? Their robot solved the Rubik's Cube in 0.38 seconds! It's safe to say that no human is physically capable of breaking this speed record. One more achievement could be added to the list of robots surpassing humans.

There is a man who holds the fastest world record for manual assembly, his name is Felix Zemdegs. He was able to complete the Rubik's Cube in 4.22 seconds. The skills and talents that robots are replacing are vast and varied, to say the least. Not to mention that robots can still surprise. Below is a video demonstration of the robot.

Video review of the assembly of the Rubik's Cube in 0.38 seconds:

So, hardware hackers, Ben Katz and Jared Di Carlo, broke the previous record for robotically collecting the Rubik's Cube. Their robot solved the puzzle 40 percent faster than the previous record.

Details about the record-breaking robot

The robotic fixture is assembled from the Kollmorgen ServoDisc U9 series motors, PlayStation Eye cameras (for scanning the cube) and, of course, a Rubik's Cube was needed. According to the creators of the robot, - "The entire software process takes about 45 milliseconds. Most of the time is spent waiting for the webcam driver and determining the colors on the sides of the Rubik's Cube."

Artificial Intelligence Research Group Facebook Inc. introduced new platform for robotics called PyRobot. This platform (framework) was developed in collaboration with researchers from Carnegie Mellon University. PyRobot is designed to help AI researchers and students integrate deep learning models built using the PyTorch platform (a machine learning library for the Python programming language) with the robots they create. The basic idea is that they can build their robots more easily using artificial intelligence skills such as natural language processing.

News from the world of robots with AI (AI): Facebook introduces the PyRobot robotics platform, an open source framework for controlling robots.

Facebook said it wants to promote long-term robotics research to help develop embedded AI systems that can learn more effectively by interacting with the physical world.

Previously, to stimulate the production of artificial intelligence models, the company introduced the PyTorch Hub.

What is PyRobot today

PyRobot is a lightweight, high-level interface that provides independent hardware APIs for robotic manipulation and navigation. The PyRobot repository also contains a low-level stack for LoCoBot, a low-cost mobile manipulator hardware platform (robot assembly toolkit). Now artificial intelligence and machine learning is becoming more accessible for newcomers to robotics.

Research Supervisor Abinav Gupta and Saurabh Gupta, as a Facebook Research Fellow, explained in their blog that: PyRobot is a lightweight, high-level interface on top of the robot's operating system. It provides a consistent set of middle-level device-independent APIs (Application Programming Interfaces) for controlling various robots. PyRobot abstracts away the details of low-level controllers and inter-process communication, so machine learning professionals and others can simply focus on building high-level AI (artificial intelligence) robotics applications.

The Facebook source also says that PyRobot has dozens of potential applications, such as helping researchers share data and set benchmarks and build on each other's work. The company has solicited input from the broader AI research community on how to democratize robotics with LoCoBot and PyRobot, which is a hardware specification and toolkit for building low-cost robots.

PyRobot works by using an API to abstract the functions that robots should use. Perform tasks such as kinematics, trajectory planning, position, speed, and torque control for joints, and visual simultaneous localization and mapping. PyRobot comes with a number of pre-trained deep learning models that allow robots to navigate, grab objects, and so on.

This means developers can program their robots with just a few lines of Python code, according to Facebook.

More researchers from Facebook say that: The cost of hardware and the complexity of specialized software limit the scope of research in the field of robotics. With lower barriers to entry, researchers can, for example, create multiple robots that collect data and learn in parallel. By providing a common platform for various equipment. PyRobot will lead to the development of tests in robotics, similar to other areas in AI, and will quantify the pace of progress in robotics with artificial intelligence.

Like Amazon's RoboMaker tool, PyRobot runs as an interface on top of the Robot Operating System (ROS), extending the infrastructure. Tech company Microsoft released a limited preview robotics toolkit in May, and last year integrated the ROS platform into Windows 10.

Renowned analyst and forecaster for Apple smartphones, Ming-Chi Kuo is by far the most reliable source of leaks and information about Apple products. And today he released a new research report obtained by Mac Rumors where he mentions the future of the iPhone and when we can expect Apple to finally switch to 5G enabled smartphones.

Rumors and Technology News: Analyst Ming-Chi Kuo Predicts Apple to Release 5G iPhone in 2020

When Apple was still planning to use Intel modems in its iPhones, there were rumors that the "iPhone 2020" phone model would be the first to receive 5G connectivity. However, the Apple company has since switched from its modem supplier to Qualcomm. For which they had to settle a long patent dispute with an American chip manufacturer, pay at least $4.5 billion and not use Intel modems. Perhaps Intel even closed its 5G development plans after this news.

According to analyst Kuo Ming-Chi's note, the development new version mobile iPhone 5G is on track. Allegedly, we will see Apple announce the iPhone 5G in 2020. Also in Kuo's note, it is mentioned that both the 5.4-inch iPhone model and the 6.7-inch iPhone model will have a 5G modem. There is a hint of some iPhone update XS and iPhone XS Max smartphones.

Ming-Chi Kuo also said that all three iPhone models in 2020 will come in multiple colors and feature an OLED screen, as opposed to the LCD screen in the current iPhone XR. However, this year we will probably still get an update to the iPhone XR with an LCD display, so if the OLED screen in a mobile phone is too big a deal for you, maybe wait a year.

5G iPhone competitors:

Currently our best competitors on Android system are the following 5G phones:

1) Xiaomi Mi Mix 3 5G (128 GB storage, 6 GB RAM and battery with fast charging);

2) OPPO Reno 5G (innovative design, affordable price, powerful camera);

3) LG V50 ThinQ (screen 1440 by 3120 pixels, memory expansion up to 1 TB, battery 4000 mAh);

4) OnePlus 7 Pro 5G (frameless AMOLED screen without notches and holes);

5) ZTE Axon 10 Pro 5G (48 megapixel camera, Snapdragon 855 chip).

Global sales of 5G phones.

Global deliveries to mobile stores with 5G technology support (this is a fast mobile connection fifth generation) may be higher than the expectations of market analysts. It's worth noting that some mobile market watchers believe that such shipments are likely to reach 150 million to 200 million units, or more than a dozen percent of global 5G phone shipments next year.

After a lot of rumors in the news of the cryptocurrency market. On Tuesday, Facebook's plans for next year were revealed, including an ambitious release of a new digital currency called Libra (or Libra). It will be managed by an association made up of corporate investors. Payment companies Visa, Mercado Pago, PayPal, Mastercard and Stripe become partners. Technology companies Uber, eBay, Spotify and Lyft are joining the project. European telecommunications companies Vodafone and Iliad are also participating in the new project. Investors Union Square Ventures and Andreessen Horowitz, plus academic, non-profit institutions Womens World Banking and Kiva.

Facebook has unveiled a new project called Calibra, a digital wallet for storing and sending Libra "crypto coins".

Billions of people are expected to be able to make payments through their mobile apps using cryptocurrency from the social media giant Facebook. The social network Facebook plans to officially launch a new Libra cryptocurrency project in 2020. Libra is a new type of digital money that is intended for billions of people using mobile applications and social network.

Popular social network Facebook has more news for the cryptocurrency world.

To create a new digital wallet that will allow users of the Facebook app to store and exchange cryptocurrency. Facebook creates a new subsidiary, Calibra.

Why is Facebook betting on a cryptocurrency called Libra? Perhaps the high goal of the latest development is to go beyond social networks.

Digital wallets for storing, sending and spending Libra cryptocurrency will be connected to messaging platforms.

Initially, the cryptocurrency will be available in the Facebook Messenger / WhatsApp application, and of course in individual applications for iOS or Android.

Facebook said in a press release that: "Initially, Calibra will allow easy and instant sending at Libra's low cost to virtually anyone with a smartphone."

It also states that: "Over time, additional services will be offered for businesses and individuals. For example, buying a cup of coffee with a code scan, paying a bill at the touch of a button, traveling by public transport without having to take cash with you."

Facebook cryptocurrency wallet security.

To improve the security of the new cryptocurrency, it will use similar verification and anti-fraud features that are already used by credit cards, banks. Cryptocurrency service Facebook will have user support. And in case of access to account the user of someone else is promised compensation for lost assets.

Cryptocurrency coins will be stored by users in a digital wallet. But, the world of cryptocurrency itself is not always stable! Time will tell if Facebook's own digital money helps people save money by sending and spending it with the ease of sending text messages.

The cryptocurrency will be managed by the founding members: Facebook, more than two dozen different organizations and a separate Swiss foundation.

Why Libra?

What does the word Libra mean?

Former PayPal CEO David Marcus, head of the Facebook project, said something like this: "The choice of the name Libra (Libra) was inspired by several reasons, namely the French word Liberty, the Roman measurement of weight, the astrological sign of justice."

What would you like to know about the Facebook Libra cryptocurrency?

Technology & Design News: Insanely beautiful iPhone 11 concept with innovative, color, curved screen.

Tech giant Apple will release the iPhone 11 this coming September. If all sorts of rumors turn out to be true, then the multimedia phone could have the same design as the last two generations of the phone. Regarding the final design of the iPhone 11, we are ready to accept what the designers from Apple will offer. But, we can't stop imagining what it would be like if technology made it possible to create any iPhone design 11. And that's exactly what very talented designers do. This time around, a beautiful iPhone 11 concept has been created that ditches all buttons in favor of an immersive, curved phone screen.

The implementation of this design results in an iPhone with a beautiful luminous strip that stretches along the entire mobile phone and replaces the physical volume rocker buttons and the power button. Using this philosophy in design results in an iPhone with on-screen icons on the side.

While it may be a nice looking phone, there is absolutely no chance that the concept will become a reality. In addition, protecting such a phone with a case seems impossible, since by covering the screen space, the case will take away some of its main functions. Imagine if such a phone were accidentally dropped to the ground, the cost of repairing a curved screen would be higher for the user than with a classic screen.

We hope that new iPhone 11 will have a bright screen under the sun.

The 2019 iPhone 11 lineup is expected to feature three models, just like last year. There will probably be two OLED phones and one with an LCD screen. The iPhone 11 and 11 Max models may have a variety of OLED screens, as well as screen sizes of 5.8 and 6.5 inches, respectively. It is possible that the iPhone 11R model will be equipped with an LCD display to keep the price to a minimum.

It is also expected that the new versions of the iPhone 11 and 11 Max will have a triple camera configuration, while the iPhone 11R version is expected to be equipped with a dual camera. Essentially, this means that all three mobile phones there may be an additional camera on the back.

The front of the iPhone 11 lineup is expected to remain the same and there will be no difference in notch size. However, recent reports claim that there may be improved face identification that can authenticate a user from some sharp angles.

Video review of the iPhone 11 concept with an innovative, curved screen on the side:

According to the creator of this video, the new frameless iPhone 11 could have the specifications:

6.4" full screen display;
- Hidden front 13MP camera;
- Four cameras, 8K @ 120 FPS;
- New operating system Apple iOS 13;
- Apple A13 Bionic mobile chip (up to eight times faster than A12 Bionic chip).

WWDC is Apple's global developer event. During this event, Apple tells developers and interested visitors about new versions of the MacOS and iOS operating systems, its latest development tools, the latest native applications, devices. She talks about plans to stimulate further development, about new partnerships with developers and other details that she is working on. It so happens that attending the IT conference Apple WWDC 2019 is an ideal chance to be the first to find out and see what new applications will be for iOS and MacOS systems and not only.

Instruction

The standard way to reduce ink consumption is to enable printer save mode. To change these settings, open in an open document "Printing" - "Printer Properties" - "Printing Options" - "Graphics". Here, in the "Printer Saving Mode" field, check the "On" box or in the same tab in the "Density" field, check the "Light" box.

Some printers or multifunction devices allow the user to set the desired settings on the machine itself on the LCD monitor. Select the appropriate item in the menu and use the arrows or "+-" buttons to set the desired parameter. Confirm your choice with the "Menu" or "Ok" button.

Decreasing the brightness and fill value in the printer software is not the best option. The balance of colors is disturbed and incorrect color reproduction occurs. It is best to change the fill value when creating an ICC profile for each material individually. However, it is important not to overdo it with saving toner - at low optical density, the juiciness of the print and its opacity will suffer.

If the ink is not of sufficient quality, printing defects such as abrupt transitions from light to dark in the form of steps may occur. Therefore, it is best if you buy high-quality inks, because, despite the higher cost, they provide a great resource for reducing density without losing density and color gamut.

In addition to the settings of the printer itself and the quality of the ink, frequent cleaning of the print heads can be the cause of excessive ink consumption. When using volatile solvents for such cleaning, the nozzles dry out. As a result, a large amount of ink is wasted, not getting on the surface of the material. Due to the frequent cleaning during printing, its speed also decreases. Here again the question arises of the quality of the ink.

Sources:

• how to reduce costs

Many users complain about the high cost of consumables for printers. But instead of complaining about the greed of printer manufacturers, it is much more reasonable to use them rationally.

Instruction

Find out the cost of printing color photographs from electronic media at the nearest large supermarket. It is in them that this service is usually the cheapest. Compare its cost with that of a printout of one picture on yours. Decide whether you want to print your color photos at home or at one of these services.

Set your inkjet printer to a continuous system. Contrary to the position of manufacturers, a quality system does not reduce, but, on the contrary, extends the life of the print head. Use only certified systems. Remember, however, that non-original inks can fade quickly in bright sunlight.

If you use, instead of buying a new cartridge each time, refill the old one at a certified workshop. Be sure to make sure that the cartridges are vacuumed in it before refilling. After three or four refills, sell the cartridge to the workshop and buy a new one (preferably original). Repeat cycle.

If you have multiple printers, always use the one that makes the most sense for you. this case. Print draft documents on dot matrix, high-quality black and white on, color - on inkjet. This is much more profitable than using an inkjet printer to print any documents.

In the printer settings (where they are located depends on the OS used - Linux or Windows) for non-responsible printouts, select the draft mode. Remember, however, that saving consumables in this case is accompanied by accelerated wear of the printer mechanisms due to an increase in the speed of their movement.

A certain share in the cost of the print is also the price of the paper sheet itself. But too cheap paper with a low density can not be used in all printers - some of them often "chew" such sheets. In a dot matrix printer, paper that is too thin emits dust that is harmful to the mechanisms when printing. If the printout is going to be framed, you can save money by using regular paper instead of glossy paper, since the frame is already equipped with shiny glass in most cases.

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The practical use of household and computer equipment implies a competent use of resources. Reducing the consumption of some of them will not only save the money spent, but also increase the service life. For example, consider the economical consumption of printer cartridges.

You will need

• - operating system of the Windows family;
• - printer with installed drivers;
• - text editor.

Instruction

The most common way to reduce the consumption of cartridge resources is to activate the "Economy Consumption" option. Most printer models today already come with this setting on board. To test the functionality of this option, you need to open the document through any text editor (Notepad, Notepad, MS Word).

Among the big annoyances of modern life, few things annoy consumers more than the high price of printer ink, Consumer Reports says. If you want to see the black clouds roll in, just tell someone it's time to go to the store, open their wallet, and buy a new set of color cartridges.

Of course, this darkness is understandable. It's hard to justify such an expensive fee for the privilege of printing a grocery store coupon. And while third-party ink cartridges may promise savings, they're often dismissed by printers designed to sniff out off-brand intruders.

For all printer maintenance issues, you can contact the Ukrainian company https://kiev-itservice.com. In addition to refilling and selling cartridges, they also provide printer and MFP repair services, printer flashing, chip flashing. Departure is free!

So how do you save money on printer ink?

Consumer Reports offers several ideas.
1. Change the font. Your choice of font can make a difference in ink consumption. When Consumer Reports tested the fonts a few years ago, they got 27 percent more life when using Times New Roman rather than Arial, the default font in many browsers. Calibri and Century Gothic both also outperformed Arial. An option called Ecofont is specifically designed for thrift — it removes enough ink from its characters to remain legible while saving money. But you have to pay for it - lifetime licenses for Ecofont start at $19.99.

2. Print in black and white. What's the point of wasting precious ink on a colorful ad or logo when all you want is direction to your best friend's summer house? By changing your default settings to black and white (otherwise known as grayscale), you save color cartridges.

3. Separate the material you don't need. Many websites allow you to select printable versions of their stories, which automatically remove ink-sucking ads and images, leaving only the text for you. If the site you're reading doesn't offer an option like Instapaper, Clean Print, or Friendly Print, reformatting the story yourself can help, saving on ink and paper. Some even let you skip the printing process entirely and save the article for future reading on your laptop, tablet or smartphone.

4. Update Your Printer. Printers vary slightly in how much ink they use, and this is one factor Consumer Reports tests in their lab. Laser printers are known for their low cost per page (about 2 cents typically) and high print speeds.

Inkjet printers are catching up in page printing costs, if not speed. Consider Epson's EcoTank line of printers, which have a novel made on a home printer without the classic ink bubble ink cartridge and reservoir. The bottles cost $12.99 each and you will need four of them. Printers have expensive upfront costs—the Epson Expression ET-2550 costs $299. But the cost per page is tiny, about an order of magnitude lower than some other printers at just $0.003. Do all this arithmetic and you will be saving money after about three years. According to Epson, the range of EcoCase ink vials is equivalent to approximately 20 standard capacity printer ink cartridges.

5. Use Project Mode. Chances are you rarely use your printer for dissertation projects, wedding invitations, or quarterly earnings reports. As long as the device lays out the soup recipe legibly, you are happy. When the end result doesn't need to be high quality, use draft mode in your printer options. This will not only use less ink, but also print faster.