Laser printers are now in work and are inseparable. However, repair is a highly technical job that requires considerable experience and patience. In recent years, with the widespread use of laser printers, troubleshooting laser printers has become an important issue, as many units do not have professional Maintenance personnel, there are many misoperations in the maintenance, not only does not eliminate the fault, but also damage the good accessories.
In recent years, due to the continuous adoption of high-tech laser printers, the degree of integration of printers has become stronger and stronger. With the rapid improvement of electronic control technology, the structure of laser printers will become more and more simple. However, due to the use of many integrated circuits on the board, it adds difficulty and technical content to the maintenance work. In addition, the general laser printer random data does not provide circuit drawings, and some integrated chips have no data to check. Therefore, when repairing, be sure to correctly master the method of checking and judging the fault. Can not be dismantled blindly, so as not to expand the fault.
In general, models above the mid-range, as long as the main power supply is working properly, the fault code will be displayed when the fault occurs, and the corresponding fault location (such as HP, Canon, Epson, etc.) can be checked according to the meaning of the code. A "display" showing the status of the work). The models below the mid-range use panel indicators to indicate the working status and the meaning of the fault. The fault can be repaired according to the status and meaning of the indicator (such as HP 4L, 6L, etc.). In some models, there is no panel indicator. After installing and connecting the supplied printing software to the computer, the computer screen will display the current working status screen and voice prompts, and check the corresponding parts according to these prompts.
The circuit design of the laser printer is quite perfect. It uses multi-level protection measures and sequential switching circuits, and the failure rate is very low. Therefore, when the printer fails, you should first eliminate other improper operation and material unsuitable problems. Do not rush to disassemble the printer. First turn off the main power switch, and then restart the printer after the temperature drops, to see if the fault is cleared. The phenomenon is still being overhauled. Because many faults in laser printers are caused by temporary errors, this is done by restarting the printer's self-test function to recover from sequential error faults.
Also note that many parts of the laser printer, such as the drum unit, fixing unit, pickup roller, etc., are consumable parts and need to be replaced regularly.
Why is Standing Desk becoming more and more popular? Sit stand desk is not only a desk. Using sit and stand desk station interchange for office can make sense of life, reduce fat, enhance energy, reduce pain, improve work efficiency and improve team cooperation ability.
1.5-2.5mm thick cold rolled steel plate with high mechanical strength, smooth surface and uniform thickness,Double motor balanced drive, lifting the whole table without shaking. The rising and falling sound is less than 45 dB, which is lower than that of keyboard typing.
The color of ergonomic standing desk frame: black, white, gray, and can be customized; it can be matched with different color panels, reflecting the modern design of the product.
Sit Stand Desk,Sit And Stand Desk,Electric Sit Stand Desk,Stand Up Sit Down Desk,Best Sit Stand Desk
Suzhou Uplift Intelligent Technology Co., Ltd , https://www.upliftecdesk.com