求助,打印机打出来的纸的左边老是有条黑边,怎么解决
推荐回答(2个)
1.输出全幅纵向黑带(线) :
(1)感光鼓刮板受损或刮板上其上利物划伤感光鼓;
(2)磁辊刮板局部损伤;
(3)打印机(一般指导纸器通道)被墨粉污染。
解决办法:
(1)首先观察输出样张的黑带是否呈模糊状,如果是,则清洁或更换感光鼓刮板。若不是,再检查感光鼓纵向上是否有被刮伤的痕迹,若有,则检查感光鼓刮板局部是否有损伤,一般来说,输出样张上有纵向黑线,说明感光鼓纵向(圆周方向)有较明显的划伤,这只能更换感光鼓,但也要仔细检查清洁刮板是否有粘有利物或有损伤,应先清除或更换刮板,以免再刮伤感光鼓。 (2)如果不是感光鼓上的问题,则可检查磁辊刮板是否有异物或有缺损,使其起不到限制墨粉的作用,墨粉与感光鼓之间没有跳动显像距离,磁辊局部上的墨粉直接粘附到感光鼓表面,形成黑线。解决的办法是清洁磁辊上的刮板或更换磁辊刮板。
(3)除上述两个原因之外,打印机(一般指导纸器通道)被墨粉污染也会形成黑条故障。当打印机走纸通道内导纸器上有熔化的墨粉聚集,打印纸经过时磨擦到打印纸上,便会形成黑线。这个原因形成的黑线,一般浓淡有所变化,线边缘比较模糊,不如上述两个原因清晰,而被墨粉污染的通道多数为传送轮,上、下热辊等部位,因此要将其清除,这可在关闭打印机电源时,趁热清除这些脏物。但若是上、下热辊损坏或老化引起的,虽清洁后会一时解决问题,但马上又会重现故障,因此应考虑更换上、下热辊。
2.输出横向无规律黑带(线) :
(1)感光鼓消电极接触不良;
(2)感光鼓刮板剪切力过大;
(3)感光鼓主齿轮转动时发生抖动;
(4)感光鼓有缺陷或安装不正确。
解决办法:
(1)先检查感光鼓消电触点是否接触良好,感光鼓表面光导体曝光后的点阵与导电基导通,电荷经感光鼓导电基经消电刷对地释放。例如惠普4L、4P型感光鼓的消电刷,就是采用消电刷与导电基圆筒内壁磨擦的消电方式,当用一定的时间后,感光鼓内壁被消电刷磨出两条深沟(双触电),这样会使触点与感光鼓导电基接触不良。维修的方法是改变触点原来的磨擦轨迹,然后涂上导电润滑脂增加导电率即可。
(2)再检查感光鼓刮板是否润滑(是否剪切力过大)。清洁刮板与感光鼓之间有一个剪切角,对感光鼓的剪切力很大。为了使感光鼓与刮板之间有良好的清洁能力,并且还需有良好的润滑而不损伤感光鼓,在刮板刃部涂有一层润滑粉。当使用日久润滑粉摩擦消失或清洁时将润滑粉擦掉,则刮板对感光鼓就会形成很大剪切阻力,使感光鼓运转不畅,产生抖动现象(这一般多发生在再生硒鼓上),就会使感光鼓动转不畅,出现故障。因此要特别注意,在清洁或更换感光鼓时不能把刮板上润滑粉去掉。要消除这个故障,只有更换刮板。
(3)打印机中有很多传动齿轮,当打印机使用一定时间后,往往会出现传动齿轮之间无润滑,磨损过度的问题,使齿轮间咬合间隙过大,引起传动不稳产生抖动现象,这也是造成横向黑线故障的一个重要原因。这时要先调整感光鼓啮合的主传动齿轮等,在齿轮上可适当加些润滑膏或润滑油,若磨损较厉害,无法调整,则应更换打印机与感光鼓啮合的主传动齿轮,才能消除故障。
(4)出现横向黑线条的还有一个原因是感光鼓有缺陷或安装不正确。当感光鼓有缺陷时,打印页面上出现的横向黑线条或污迹多是具有规律性的,这时可取出硒鼓仔细检查,若感光鼓确有问题,应更换感光鼓。若感光鼓没有问题,则可能是由于感光鼓安装不正确所造成的,当感光鼓安装不正确时,会导致其与打印纸的接触不正常,出现打印不均和黑条等现象。这时,应打开打印机盒盖,取出感光鼓,进行重新正确的安装。
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