Hello, I am Michihiro Hayashi, advisor of the Design & Fabrication Club. Since the 2nd semester final exams have ended, I was looking for an interesting activity to help students pass the time. Breaking things can be a good stress reliever, and coincidentally, I had two printers that I was planning to dispose of because they could no longer be repaired. So, I decided to hold a "Printer Disassembly Contest." Rather than simply destroying them, I thought it would be more meaningful to turn it into a competition, evaluating the beauty of the disassembly process. The two printers were A3-size inkjet printers. Printers are excellent machines to disassemble, as they incorporate a well-balanced combination of various elements: "Machine Elements" for paper feeding mechanisms, "Electrical Circuits" for driving motors and printheads, and "Electronic Circuits" for controlling touch panels and other components. Taking them apart offers a great learning opportunity.
 The contest was held on the afternoon of Saturday, February 1st, 2025. A total of seven students participated. They were divided into two teams, one with four members and the other with three, and the contest began.
 First, the students began by observing the exterior of the printer, checking for any visible screw threads and identifying which parts could be opened. Since home printers are often designed to hide screws for a cleaner appearance, the students initially had difficulty locating them. However, through careful observation and examination, they managed to find the screws that could be removed and proceeded with the disassembly, starting with the outer casings.
 As the disassembly progressed, various internal machine elements of the printer, such as shafts and bearings, gears, and belts, began to emerge. Since these components required the correct tools for proper disassembly, the students learned about different types of tools and their safe and appropriate usage from the instructor as they worked. Along the way, there were unexpected incidents, such as lubricant grease and ink splattering, but after two hours of hard work, they had managed to disassemble the printers down to the component parts.
 Finally, the students neatly arranged the disassembled parts, marking the end of the disassembly process. At this stage, they discussed various ideas on how to organize the parts—whether by material, function, or size. In the end, both teams primarily sorted the parts by material, likely because it would make disposal and recycling easier. After a thorough evaluation of tool usage, safety considerations, and overall technique, the winning team was determined. The champions were a group of three 1st year students, who demonstrated excellent skills throughout the contest. As their prize, they received a box full of snacks.
 Meanwhile, the snowfall outside the window was remarkable. Our school offers various indoor extracurricular activities like this one, but we also have many outdoor activities, such as skiing and snowboarding. I look forward to seeing students continue to participate in a wide range of activities with enthusiasm and energy.

Michihiro Hayashi

Michihiro Hayashi