Until very recently there were no reasons for downgrading Samsung ML-2160 firmware. To get rid from the chip you need to find the fix firmware, due to which the device would stop monitoring the chip what gives you an opportunity to stop paying for chips and refill cartridges for free. When Samsung released new ML-2160 V1.01.02.00 firmware, the situation changed rapidly. Samsung have decided to stop fooling around and began to sign new firmware versions with electronic digital signature (EDS), meaning not being able to install modified firmware without having the original Samsung EDS. It is impossible to pick or hack EDS, unless there’s a leak of EDS or should anyone find a weak spot in mechanization of the testing algorithm. Continue reading How to downgrade Samsung ML-2160 firmware using JTAG
Before speaking about the history of laser printers, I need to explain the basis of this technology. Continue reading How it all began. The history of laser printing. Part 3
The history of currently popular ink-jet printing, or, scientifically speaking the technology of nonimpact high-speed ink spotting through microscopic openings onto the solid carrier for producing an image on the surface of it, is more than a decade long. But the origin of this technology is actually the research of the Frenchman Felix Savart, who in 1833 have discovered and noted the uniformity of liquid drops formation when delivered through a narrow opening. It was first described mathematically in 1878 by lord Reilly (the future Nobel Prize Winner). However, many years on, in 1951, Siemens patented the first device that was separating the jet into similar drops. This invention led to the creation of minograph, one of the first commercial recorders used for the registration of voltage magnitude. Continue reading How it all began. The history of ink-jet printing. Part 2
Usually, we don’t even think about how much time is needed for a new discovery to become applicable in our ordinary, day-to-day life. How much additional energy, finances and calculations is needed to drive those theoretical developments to their practical application.
Today, we are speaking about printing methods, and there are definitely more than a few. But we will have a closer look at the three most popular ones. Continue reading How it all began. The history of matrix printing. Part 1