如今各種各樣的辦公設備已成為人們工作、生活中不可或缺的好幫手。當這些設備損壞需要進行維修時須特別小心，稍不注意就會出現故障范圍擴大或使故障變得復雜，從而使維修過程難度加大。復印機硒鼓廠家談談在(zai)維修工作中應著重注(zhu)意的地方(fang)。

1、不可隨意(yi)帶電拔(ba)插控制(zhi)卡(板(ban))和(he)連接電纜(插頭)。通常在加電情況(kuang)下，拔(ba)插瞬間會產生較強(qiang)的感(gan)應電動勢，足(zu)以將各種芯片、板(ban)卡或接口(kou)燒壞。

2、帶(dai)電檢測須小心(xin)。防止因(yin)使(shi)用鑷(nie)子(zi)、起子(zi)等工具引起電路短路現象；防止碰上交流電源火線和大電容或(huo)其它(ta)高(gao)壓部(bu)位(wei)，以(yi)免(mian)觸電。

3、防(fang)靜(jing)電(dian)(dian)(dian)(dian)。集成電(dian)(dian)(dian)(dian)路和電(dian)(dian)(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)對(dui)靜(jing)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)敏感范圍是(shi)+25v～+1000v，很容(rong)易受到高靜(jing)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)危(wei)害。在維修(xiu)工(gong)作中經常發現，許多(duo)辦公(gong)設備不能正常工(gong)作的(de)(de)原(yuan)因均屬芯片損(sun)壞(huai)，而芯片損(sun)壞(huai)80%以上(shang)是(shi)由靜(jing)電(dian)(dian)(dian)(dian)放(fang)(fang)電(dian)(dian)(dian)(dian)所致。通(tong)常情況下，靜(jing)電(dian)(dian)(dian)(dian)放(fang)(fang)電(dian)(dian)(dian)(dian)對(dui)傳真機(ji)等(deng)辦公(gong)設備破壞(huai)大致可以分為(wei)兩類：一種是(shi)與(yu)電(dian)(dian)(dian)(dian)壓(ya)(ya)有關，其破壞(huai)是(shi)通(tong)過高電(dian)(dian)(dian)(dian)壓(ya)(ya)跨過元(yuan)(yuan)器(qi)件(jian)氧(yang)化層(ceng)，氧(yang)化層(ceng)崩潰(kui)后(hou)形成短路，燒毀元(yuan)(yuan)器(qi)件(jian)；另一種是(shi)與(yu)能量有關，其破壞(huai)是(shi)通(tong)過結面崩潰(kui)，電(dian)(dian)(dian)(dian)壓(ya)(ya)跨過結面引起大電(dian)(dian)(dian)(dian)流，由電(dian)(dian)(dian)(dian)流產(chan)生熱效應(ying)，造成局(ju)部熱集中，使硅片、鋁金屬熔解，形成不可恢(hui)復的(de)(de)損(sun)壞(huai)。一般的(de)(de)芯片抗靜(jing)電(dian)(dian)(dian)(dian)放(fang)(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)值為(wei)+500v～+2000v。

4、更(geng)換(huan)集成電路(lu)(lu)和(he)電子元(yuan)(yuan)(yuan)器件時，須先(xian)切斷電源，以確保人機(ji)安全。更(geng)換(huan)集成電路(lu)(lu)和(he)電子元(yuan)(yuan)(yuan)件器時，不可任意選用替(ti)(ti)代品(pin)。如果(guo)無同(tong)型(xing)號(hao)、同(tong)規格的(de)(de)集成電路(lu)(lu)和(he)電子元(yuan)(yuan)(yuan)器件而選用其(qi)它替(ti)(ti)代品(pin)時，一定(ding)要(yao)查清替(ti)(ti)代品(pin)的(de)(de)類(lei)型(xing)、各引腳功能(neng)及其(qi)參數(shu)等，不得隨便增加(jia)(或降低)其(qi)功能(neng)。更(geng)換(huan)大功率(lv)元(yuan)(yuan)(yuan)器件時，須同(tong)時加(jia)裝散熱設備，并固(gu)定(ding)安裝。

5、清潔(jie)處理。檢修過的(de)(de)集成(cheng)電路和電子元器件，須先檢測并進(jin)行清潔(jie)處理，對于掉入(ru)機內(nei)的(de)(de)螺(luo)釘、螺(luo)母、導(dao)線頭和焊(han)錫膏等物品，一(yi)定(ding)要事先清除干凈，以防留下事故隱患。