I. How to change the ribbon of the receipt dot matrix printer
The dot matrix printer is used to print receipts. If the printed words are found to be lighter, it means that the color needs to be changed There are two ways to replace the ribbon in the dot matrix printer:
Method 1:
1. Open the front and rear covers of the ribbon cassette, Look at the channel where the ribbon runs on the side without the gear. A: Straight: Indicates that the selected ribbon should be flush, B: The ribbon needs to be twisted to pass normally, indicating that the selected ribbon must be twisted.
2. Select the ribbon core. Generally, there will be a layer of plastic film in the core packaging. Carefully tear it open first, and hold the upper and lower cartons (otherwise the core will come out). Generally, there will be a plastic film on the carton. Arrow, the arrow generally points to the side without gear, buckle the tape core in the bottom box of the ribbon rack (in the lower box), then pull out the paper at the bottom of the tape core, and carefully remove the upper paper box.
3. Arrange the belt core, pull out a part of the belt core from the belt outlet (the side without the gear), plug it well according to the channel checked before (step 1), and press it with shrapnel. Then install the other side, put the tape core between the two gears on the other side (to be flat), after confirming that the tape core in the ribbon cassette is not twisted, close the lid of the ribbon cassette, and use the knob to press the instructions on the ribbon cassette. direction, and reel in the excess ribbon core.
In addition, don’t be afraid if the ribbon cores are all scattered, just pick up the ribbon and install the small part of the ribbon box along the channel of the ribbon, close the lid, and turn the scattered outside by hand. The knob can be all neatly retracted into the ribbon cassette.
Method 2:
1. Open the top cover of the printer, you will see a black box (usually black) shaped like a clip. Call it the print frame, and the empty part in the middle is the print head.
2. Remove the print frame, pay attention to pull up from the end close to the print head when disassembling, and the print frame can be easily removed.
3. Open the print frame, because the structure of the print frame of different models of printers is different, and its ribbon winding method is also slightly different, so you must observe the winding method of the primary ribbon, otherwise It is very likely that the ribbon will not rotate properly and the print will fail. It should be noted that the two gears in the print frame should clamp the ribbon, and should be parallel to them, otherwise the ribbon will shift with the rotation of the gears, and finally the gears will not be able to rotate.
4. After the ribbon is installed, put the print frame back to its original position, and the process of replacing the ribbon can be completed.
Second, how often should the ink ribbon for the dot matrix printer be replaced
The ink ribbon is the main consumable for dot matrix printers. How often does the dot matrix printer need to change the ribbon?
Generally speaking, the frequency of replacing the ribbon is not fixed, it mainly depends on the model of the dot matrix printer, the quality of the ribbon used, the printing frequency, etc. Generally, if the printing volume is not very large, You can count on 1m1 day. If the printed words are found to be light, or the ribbon is found to be hairy or broken during inspection, it needs to be replaced.
Third, how to maintain the dot matrix printer ribbon
1. Prepare two printing ribbon cassettes, use a darker color (new ones) Use the color ribbon to print formal documents, and use lighter color (used, but the tape base must be intact, otherwise it will damage the needle) ink ribbon to print informal documents or wax paper.
2. Use scotch tape to fix two small pieces of foam at the ribbon outlet in the ribbon cassette, sandwich the ribbon between the two pieces of foam, and let the foam absorb some good quality printing ink at the same time. This keeps the ribbon moist and prolongs the life of the ribbon.
3. Use two pieces of foam that absorb printing ink of good quality to clamp a section of the ribbon exposed at the front end of the ribbon cassette, and gently turn the ribbon shaft to allow it to be used for a period of time (the base of the ribbon). In good condition) add some ink to the ribbon (the whole ribbon must be added, otherwise the color will be different when printing), then open the ribbon box and let the ink-filled ribbon dry (or add a small amount of gasoline to the ink) use later.
