The printhead cable generally uses a plastic flexible strip cable. This cable is easy to generate creases during use, one is a cable inserted at one end of the printhead socket. As the printhead is increased, it will break in the crack (repair the print head when repairing under);
The other is as the printing time increases, the intermediate portion of the print cable is easily wear or generated during the movement of the cart. If the insulation layer on the cable is ground, the print pin drives the signal and the printer rack short-circuit, causing the printer master circuit fault; if the print cable crease is broken, the print pin drives the signal open, causing the corresponding print pin No need to print, causing the printing characters / Chinese character shortcomings.
These two failures of the cable can be checked with a multimeter. The method is to separate the two caiqules of the multimeter on the corresponding lines of the cables, and the resistance is zero, and if necessary, it is necessary to bend the test at the fold, and there is no change in the resistance on the multimeter. After the diagnosis is diagnosed, it can be replaced with the same model type printhead cable. The breakage of the cutting cable cannot be treated with the welding method, since the signal short-circuit method is processed during use, and the signal is short-circuited, the signal is shorted, causing the main control circuit of the printer to generate a fault.
In the print head cable, it can take precautions to avoid the signal line break when the printhead cable is displayed. The method is: first, a viscose tape having a length of approximately 1.5 cm, and then a length of about O, 5CM, and the width of the adhesive belt are passed to the middle of the tape to avoid the central portion of the tape and the cable. Together. The cable is then bent to bend slightly in the crease, allowing the sheet to abut the tape to the cable.
Thus, the tension generated by the tape sheet will always force the cable to be bent outwardly in the crease, thereby generating an outward suitable tension at the fold, which can reliably avoid the printhead in the printing process The cable causes the cable to generate a discount at the fold to prevent the discontinuation of the signal line in the printhead cable.
