There are three main structures of laser printers, namely laser working medium, excitation source and resonant cavity. The structure and principle of different kinds of lasers are very different, but their common features are the three that will be described below,
In the continuous development of the printer, the coding technology is also constantly evolving, and the function of the printer to identify the external device data has also been born. Let's take a look at this feature from Shenyang Oulans. The printer has the
Fixed ball valve features 1. Double blocking and discharging function: The fixed ball valve adopts a spring preloading floating valve seat. When the valve is in the fully open or fully closed state, the valve seat on the upstream and downstream sides blocks the flu
Application of stainless steel star unloader in food and medicine industry The stainless steel unloader is a comprehensive discharge device for the unloader, and the streamlined appearance is combined with the organic use characteristics. It is suitable for weak corrosive media such as air, s
From the current status of China's inkjet industry, we need a standard for inkjet printer ink safety, and this standard is also mandatory. First, the ink path system and the nozzle of the printer can not be ignored. After the ink is added, it must pass through
1 organic acids and their salts At present, organic acids and salts commonly used in food preservation include acetic acid, lactic acid, citric acid, ascorbic acid, sorbic acid and potassium salts thereof, and tartaric acid phosphate. The mechanism of action is mai
Designed for drying heat-sensitive, easily decomposable and oxidizable materials, vacuum dryers are filled with inert gas, especially for complex ingredients. The vacuum dryer is a device for removing the moisture of the components inside the container by removing
The two-dimensional mixer is mainly composed of three parts: the drum, the swing frame and the frame. The rotating drum is mounted on the swing frame and is supported by four rollers and is axially positioned by the two retaining wheels. Among the four supporting ro
With the extensive application filter press, a variety of filter press developed rapidly. Whether it is a car body filter press or a plate and frame filter press, there are certain experimental methods to verify the quality of the filter press. (The following method
1. Working principle of purifying hot air circulation oven The temperature control of the cabinet adopts GCD-23A intelligent computer temperature control and PLC automatic control system. The temperature signal is collected by platinum resistance. The temperature c
Do a good job of sterilization Let the people eat "safe food" August 29 The General Administration of Quality Supervision, Inspection and Quarantine issued the basic situation of product quality in the first half of 2011 . Among them, in the domestic p
The pilot type solenoid valve is composed of a pilot valve and a main valve, and the two are connected by a channel. When the solenoid valve coil is energized, the movable iron core and the static iron core are attracted to open the pilot valve hole, and the pressur