LQ-1600K printer color belt drive failure analysis

xiaoxiao2021-03-06  42

LQ-1600K printer often has some ribbon transmission failure, resulting in abnormal print jobs, affecting office efficiency, the following is the processing method of this type of fault, in practice, Introduce to everyone.

The failure of the LQ-1600K printer tape drive fault is mainly:

1 Printing ink is gradually faded with the increase of print characters.

2 The printer often strands, sometimes even hangs the printhead, causing the printhead to move, printer alarm.

This failure of the LQ-1600K printer is mainly due to damage to the tape cassette or the ribbon transmission, which causes the ribbon that does not move, or the printing time color band cannot be completely screwed into the tape cartridge, but accumulates in a ribbon box. The left side is caused.

When we encounter such a fault, mainly from the following three aspects, find the cause of the fault, and then the subject of the drug.

First, the first is to check the ribbon and color belt box

Check method: Turn off the printer, take the color strip box from the machine, use force to the moving reel (in the direction of the picture as specified), see if the colored belt is normal (moving in the direction of the figure below) There is no perforation on the ribbon, such as the shaped perforation, burrs, should be replaced, such as the ribbon walking in the ribbon box, and the tape cassette should be replaced.

Second, check whether the tape drive mechanism is normal

Checking method: Patching has been checked and confirmed to confirm the normal ribbon box, first grab the printhead to return left and right, see if the tape drive gear (see below) is always rotated counterclockwise, print head sports The process in the process is a process of stopping the rotation of the ribbon drive gear. Second, one hand grasps the ribbon moving reel, and the other hand is back and forth to move the printhead, check the tape drive gear has no smooth and unusually smooth. "咔, 咔 "sound. In the above two-step inspection, if there is a problem, it will illustrate that the ribbon drive mechanism is damaged, the replacement method should be replaced, the method is: Unscrew the front two screws, open the two locks on the top cover, open the printer cover; Two small screws on both sides, remove the tractor; then tighten the mechanical rotating parts 7 large 4 small 11 screws; hold the entire rotating member, at this time, you can see the ribbon transmission in the left side. The two fixed screws are removed, and the colored belt drive mechanism can be replaced.

Third, check the printhead

In the above two-step check, you can't check the problem. Finally check the printhead, because the printhead is often in contact with the ribbon ink, paper clad and dust, so the front end of the printhead is easy to be blocked by the dirt. The needle cannot be retracted, and the print needle will bring the ribbon to cause a ribbon drive failure. This fault is to be cleaned, and the specific steps are:

1 Pump the fastening screw on the printhead, remove the printhead and printhead cable. 2 Inject the front end of the printhead into the needle, pay attention to at least 2 cm in the needle, soak for at least 2 hours. 3 Medicinal injection needles to inhale water alcohol to remove contaminants in the upper end and lower end injection of the upper and lower ends, and use waste printing needles to pick waste. 4 Connect the print head cable to the printer, the printhead is not mounted on the print head, open the printer power and make the printer self-test, use skim cotton to dry out the needle alcohol and dirt. 5 3rd, 4 steps to repeat multiple times, then install the printhead, the problem is solved.

In short, as long as the above method carefully checks, analyzes, always solves the general color

With a transmission failure.

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