Ribbon problems and solutions
   Dot matrix printer in use, the most billing machine nylon ribbon common is the wrong ribbon to EPSON LQ Series dot matrix printer, for example, introduces several printer ribbons and solve problems.
  Ribbon crack how to do? - Ribbon tension is too large, pull off the sutures or word hammer smashing ribbon ribbon cause cracking. The former condition may be some cracking cut, sewn from scratch is good; the latter condition can simply replace the ribbon.
   The ribbon is jammed how to do? - Off the wire edge ribbon, ribbon simple wrapped round after fluffing, resulting ribbon round cards, ribbons not properly retract the ribbon cartridge. The solution is: first open the printer cover, turn the ribbon discharge interlock lever arm and hammer open, the ribbon cassette tape feed end of the ribbon back quietly, and then close the transfer ribbon
Arm and Hammer rows of interlocking handle, turn the power, the machine will be in self-test ribbon Replace the ribbon cartridge.
   Ribbon capstan drive belt worn or cracked how to do? - Such problems is the use of time is too long because the drive belt or chain letter drive belt caused by the conflict. The solution is to adjust the orientation of the character chain, it no longer conflicts drive belt; has cracked, replace.
   Ribbon motion sensing signal abort how to do? - To view the ribbon movement sensing signal line is not been damaged, replace the signal line when cracking; then check the ribbon movement sensing signal line interlock conversion board at J6 socket is not damaged or bad Please epson printer ribbon cartridges replace or plugged signal lines.
Maintenance Tip: Do not use defective ribbon, the use of defective ribbon cassette and ribbon in the printing process, due to defective lid ribbon cartridge body contact is not tight, very simple form driven gear out of position, with the main gear engagement is not tight, the ribbon slack. Because the difference between the use of quality ribbon ribbon along the printing ink will enter the print pin guide hole
Scalp seam and cured to form the print head needle resistance increases, a simple break or crush print pin parallel grooves, more serious causes print pin or ribbon motor driver chips and driver chips burned.

In fact, to do it yourself is not too fujitsu printer ribbon difficult to replace the print ribbon, but different types of dot matrix printers, the structure of their ribbon rack are different, but fortunately they are similar ribbons operating principle, we are now LQ1600 commonly used as an example: First, open the printer cover, you'll see a clip shaped like a black box (usually black), we call it the print frame, it is placed in the middle empty part is the print head. Remove the print frame, when attention apart from the print head near the end of the line to pull up, the print frame can easily unloaded. Then you can open the print frame, because the frame of the structure of the printer to print different models are different, it's the ribbon around the law is also a little bit different, so you have to observe the primary zone around the law, or the ribbon is likely Unable to normal rotation and cause printing failure. Note that print frame two gears to be sandwiched ribbon, star printer ribbon and should be parallel with them, or will lead to the occurrence of the ribbon with the rotation of the gear shift, and finally jammed the gear can not be rotated. After the ribbon installed, the print rack-mounted back in place, the program can replace the ribbon finished.