Siheyuan: Starting from a fitter

Chapter 160 Inkjet Printer

"Every month from now on, our laboratory will assign test tasks to all leaders and write down the results. When everyone checks that there are no problems, they can sign."

When everyone heard that "the test task is issued," their faces showed unnaturalness, but when they heard that "after writing it, just sign it," they all laughed happily and expressed their cooperation.

"Xiao Wu, you need to organize everyone to produce more 103 computers as soon as possible. They will need to be sent to the department for testing in the future. Tomorrow, Deputy Director Nie, Xiao Wu, Xiao Li and I will go to the department to report."

Seeing that everyone was discussing about the same thing, Li Huaide spoke up.

The three of them said there was no problem.

Thursday, June 1968, 9.

In the large conference room of the Mechanical and Electrical Department, a group of main leaders surrounded Li Guocheng.

Li Guocheng was sitting in front of a 103 computer, explaining the computer's functions and two applications. He did not dare to show the pinball game.

During the whole process, everyone whispered to each other and talked in low voices, all expressing their surprise and pride for the 103 computer.Because they all know that the Electrical and Mechanical Department will turn around this year.

According to previous statistics every year, the input of the Electrical and Mechanical Department is greater than the output, and it is at the bottom of the industrial sector. The output-input ratio reaches the lowest level of 60%, which means that with an investment of 100 yuan, only 60 yuan worth of products can be produced.

Every time we have a meeting, we will be criticized. This year, everyone saw the opportunity to be proud, so they were all excited.

This is high technology. According to Li Guocheng's introduction, it far exceeds the current world's latest technological level and is truly No. 1.

After a demonstration, everyone sat down one after another.

Zhao Cheng patted the microphone and said, "Comrades, I think everyone is in a great mood and full of pride right now. The steel rolling mill submitted an answer sheet to us with a score exceeding 100 points this year. It is the best gift from our Electrical and Mechanical Department to the motherland's birthday. I think the big boss will be very happy as a gift.

However, before there is a final decision above, I ask everyone to implement the confidentiality regulations! "

Everyone nodded in agreement, and several people in the steel rolling mill had flushed faces.

"I will contact the superiors shortly. Comrade Li Huaide will take the information and report with me in the afternoon."

Hearing the last sentence, Li Huaide was at a loss at first, and then became inexplicably excited. He wanted to jump up and dance, and the surrounding leaders congratulated him one after another.

A week later, the steel rolling mill received the No. 103 commendation order (only the computer was mentioned, not [-]), which was carefully framed by Li Huaide and hung in the most conspicuous position in the exhibition room.In the following months, Li Huaide would go around the exhibition room every morning, stand in front of the inscriptions and commendations, and giggle for a while.

As everyone expected, no news related to the Sugon 103 computer appeared in the media. Only a few key research institutes and military factories knew the information about the Sugon 103 computer.

Naturally, because of the low price of the 103 computer, an order for 1000 units was obtained.After discussion, the steel rolling mill had to suspend the production of radios and concentrate on manufacturing the 103 computer.

Originally, the Ministry of Mechanical and Electrical Engineering hoped that engineers from the Semiconductor Laboratory, especially Li Guocheng, could go to each user interface to guide its use.Apart from sending Zhang Zhijing and Yan Jiefang to work together in the lab, Li Guocheng flatly refused.

Half a month later, Li Guocheng couldn't bear it anymore and stopped the two of them and stopped letting them go out to explain.

Later, the outing mission turned into a one-man show for Wu Liankui after a brief training.

For this reason, some bad remarks were spread in the department, such as being arrogant about talents and not obeying orders, and some even clamored for ideological reform of the entire laboratory.

At an enlarged meeting, Zhao Cheng pounded the table and said: "Comrades who don't know the situation, shut up! If you still do this after knowing the inside story, then I have reason to believe that your purpose is not pure. You want to help the enemy suppress China's technology." progress!"

The harsh words immediately suppressed the noise, and no one dared to be identified as an enemy agent.

The turmoil outside did not affect the semiconductor laboratory, and all tasks were progressing step by step.

The task of the inkjet printer was handed over to Zhou Xiaojuan’s team. The working principle and materials used were all written down in a document. The thermal foaming technology is used. The basic principle is to heat the nozzle to generate bubbles of ink and spray them onto the printing medium. It is a high-temperature and high-pressure printing. technology.

After knowing the principle, manufacturing is very simple. The only difficulty is the motor. Li Guocheng directly modified it on the basis of the hard drive motor to increase the output torque, and they could complete the design of the rest.

Slow down, slow down. Now, Li Guocheng will do these jobs if he can.

在这期间，李国成设计了一款直接连接并行总线接口的485接口芯片。基于KT32F100，重新设计一块专用主板，上面只有CPU、DRAM和485接口芯片CX485S100。

This motherboard was the first time that Yan Jiefang designed it himself. It took him a full month to complete the drawing design. The biggest reason was that if he made a mistake, he would have to start over with a new drawing.

Li Guocheng had the support of his mind and had already completed the simulation and simulation in his mind. Drawing the drawings was more like copying the drawings.

During the whole process, Li Guocheng did not give any guidance or reminder, and just let him perform on his own.

Even for mask making, when he asked Li Guocheng for help, he didn't agree and let him figure out a way by himself.

This guy is also a geek. He used a piece of cardboard the size of A4 paper to carve a large-sized circuit board, and then used the lens set of the photolithography machine to compress it and directly expose the circuit board.

This sudden inspiration also laid the foundation for the subsequent computer-controlled exposure of circuit boards.

The production process of the circuit board is very simple, avoiding the number of words, so I will not describe it here. If you are interested, please Baidu yourself.

Finally, the design of the first version of the inkjet printer was completed in early February 1969.

Under the witness of the main factory leaders, the first manuscript paper was printed.Due to ink issues, the text is slightly blurred.But relative to its success, everyone has ignored this flaw.

When he learned that the circuit board was designed by Yan Jiefang, Li Huaide was even more happy, because it meant that the laboratory was growing rapidly.Reliance on Li Guocheng is getting smaller and smaller.

As Li Guocheng grew up, Li Huaide became more and more aware of the crisis. He was afraid that Li Guocheng would be transferred to another job. He was afraid that if Li Guocheng left, the laboratory would be completely shut down and he would be beaten into his original form again.

Now, as long as the problem of chip design is solved, Li Huaide can sit back and relax. It would be better for Li Guocheng to stay. If Li Guocheng is transferred, the laboratory will still be the same laboratory, but the development will be slower.

Why does Li Guocheng vigorously train young people in the laboratory? First, he has limited abilities and energy alone, so he must have a capable helper; second, only if he can do it, everyone can, and he will be able to leave the laboratory in the future. Build your own technological kingdom.

Because he deeply understands that the development of state-owned enterprises in later generations cannot be changed by manpower.If he wants to let go and develop quickly, just like for a certain subsequent action, he must become a free agent.

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(End of this chapter)