故障现象:HP—DJ710彩色喷墨打印机使用近两年后,打印资料时开始打印的字体笔画清晰,后来出现了缺笔断画现象,最后打印纸上一片空白,一点墨迹也没有,但打印头仍正常地来回运作。分析与检修:开始以为是计算机计喷墨系统失误,可能是墨盒没有墨水了,于是换上一盒新的墨水进行打印,故障依旧;按使用手册上的自检方法进行自检打印,纸上仍然一片空白。但由此可以说明打印机的硬件没有问题,电路信号正常,另外,打印机在自检或开机 Symptoms: HP-DJ710 color inkjet printer used nearly two years after the print material began to print the font strokes clear, and later appeared missing pen-off phenomenon, the last piece of paper on a blank, a little ink, but the print head Still working normally back and forth. Analysis and Overhaul: Start thinking that computer error in the inkjet system, ink cartridges may not have ink, so put on a new box of ink for printing, the fault still; self-test method according to the manual for self-printing, paper Still blank. But this can explain the printer hardware is no problem, the circuit signal is normal, in addition, the printer during self-test or boot