1. The cause of the printer's failure.
1. Failure problem.
When the printer prints, black ink always appears on the edge of the paper, which greatly affects the aesthetics of the paper.
2. Problems caused by improper operation.
Due to the occurrence of ink that affects the aesthetics of the printer, the printer often automatically cleans the print head and the ink of the waste water ink tank, and mistakenly flips the printer 180 degrees, so that a large amount of ink left in the waste water ink tank flows out of the entire printer, causing the printer to be unusable.
3. Maintenance problems caused by urgent maintenance and improper tool selection.
Because there is no tool in the hand, the existing word gong wire knife is used to transform into a tool that can take out the 5-star inner gong nail, but because it is a restructured tool, in the process of disassembling the printer, the corner of the 5-star inner gong nail is wrung out, and it is very difficult to complete the disassembly work of the printer, so that the whole disassembly process takes too long, and the difficulty increases.
4. Ignore some components when disassembling the printer, resulting in problems.
Due to the lack of careful inspection of the disassembled parts of the printer, it was forgotten that the hidden 22V output DC power supply in the machine was not disassembled, resulting in water ingress into the 22V output DC power supply when cleaning the printer, and when the subsequent assembly printer was powered on, the DC power supply was burned.
5. When reassembling parts, ignore the problems caused by the installation direction of the parts.
Because when disassembling the parts, the direction of the teeth of the motor shaft cap is not recorded, and the teeth of the shaft cap are not stuck in the groove during installation, resulting in the printer part being reinstalled, the printer cartridge is always stuck on the right side, can not be moved, and the printer can not print the problem.
6. When assembling parts, other sundries are left in the machine.
After cleaning the printer, some debris is not completely cleaned up, resulting in abnormal paper feeding of the printer. Severe jitter issues occur.
7. During installation, printing problems caused by unknown problems.
In the process of reinstalling the printer parts, some parts are not installed in the connection in place, or the mating gap is not tight, and the paper feeding problem is not smooth.
Second, in view of the failure problem, adopt the method of solution.
1. The first point is to disassemble the printer parts and clean the ink on the parts with clean water.
2. For the second point of improper operation, as long as you pay attention not to flip the inkjet printer 180 degrees or tilt it at a large angle, the ink will not pour out. If you accidentally do not operate properly, the ink will flow into the printer, after disassembling the printer parts, rinse the box directly with tap water, and other parts can also be cleaned with water when they are stained with ink. Except for the electrical components with the circuit version, which cannot be cleaned with water, the others can be cleaned with water. If there is ink on the circuit components, they should only be cleaned with a cotton swab dipped in some alcohol. After the ink is cleaned, it is dried with a hair dryer.
3. The third point is that the improper selection of the disassembly tool causes the corners of the 5-star inner gong nails to be broken. In this case, only at the head of the gong nail, with a hacksaw blade, saw a straight groove, you can use a word gong wire cutter to twist the gong wire, it is best to choose to use special tools for maintenance and disassembly.
4. The fourth point is to ignore some components when disassembling the printer, this case is that the DC power supply is not taken out, resulting in water inlet and electricity burning. In this example, you can purchase the same power supply with the same parameters on the Internet, and the new wave production only needs 9 yuan to be mailed directly to your home.
5. Fifth, when disassembling parts, be sure to take pictures of the direction and position of the disassembled parts or make drawing records.
6. The problem that occurs in the sixth point, as long as the debris is cleaned in a hurry after installing a component, and then another component is installed, and so on.
7. Seventh, pay attention to the correct installation of the components in place during the installation process, and the gap between the components should be reasonable and important.
Fit in place.
3. Repair printer sequence** and maintenance instructions
1. Take out the printer cartridge first.
2. After taking out the four gongs of the scanner, the scanner can be taken out.
3. Take out the printer circuit board
4. Disassemble the main parts of the printer and take out 4 gongs for fixing the main machine.
5. Take out the DC power supply and a small piece of circuit board at the bottom of the printer.
6. Rinse the printer box.
7. The five-star inner gong nail of the broken printer is repaired into a word gong wire nail.
8. Burned DC power supply and parameters**
9. Printer after repair**.