资源描述：
《办公设备维修资料网复印机维修网打印机维修网传真机维修网一体机维修网打印机维修》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、办公设备维修资料网复印机维修网打印机维修网传真机维修网一体机维修网打印机维修Thescannerconsistsofthreeparts,theopticalpart,themechanicaldrivepartandtheelectroniccircuitpart.Amongthem,theopticalimagingpartisthemostprecisedesign.Whetheritisanopticallensorareflectionlens,aslightchangewillaffectthequalityofCCDimaging,andmayevenleadtothep
2、henomenonthatCCDcannotreceiveimagesignals.Therefore,manyscannermanufacturershavedesignedalockingdevice(mechanicaldeviceorelectronicdevice),whichisspeciallyusedforlockingthelensassemblyofthescanner.Thefactorylocksthescanner'slenssetwhenthescannerleavesthefactory.Thefirststeptheusermustdowhenpurch
3、asingthescanneristounlockthelocklensgroup.Similarly,ifthescannerrequireslongdistancehandling,thelensmustberelocked.IfyourscannerisusedunderWindows98,youmustpayattentiontotheorderoftheboot.Thecorrectbootsequenceistoturnonthescannerfirstandthenstartthecomputer.ThisisbecausetheWindows98systemwillde
4、tectalldevicesandoneloginatstartup,ifthescannerisnotopen,theWindows98systemwillnotthinkthatthecurrentsystemofthescannerisaregistereddevice,yourefusethisequipmentforaccess,havenottheerrorontheonlinescanner.Second,it'sbettertowarmupthescannerforsometimebeforeyoustartscanning.Whenthescannerisopen,t
5、hestabilityofthelightsourceispoor,andthecolortemperatureofthelightsourcedoesnotreachthecolortemperaturerequiredforthenormaloperationofthescanner.Therefore,theoutputimageisoftennotsaturatedenough.Thebesttimetoscanisafterthescannerhasbeenpreheatedfor20minutes.Intheuseoftheprocessdoesnothavetoshutd
6、owninthegaptime,sothatthequalityoftheimagescanningisrelativelystable.Thebestscaninputentriesarepositive(transmission),followedbygeneralpictures(reflections).Ifyouhavenobetterscanningmaterials,canbeusedasaprintornegativescanmaterials.Becausetheprintingintheprintingwithcyan,magenta,yellowandblack(
7、CMYK)inksfromdifferentanglesoverprint,whichleavesnettedinprint,aslongastheuseofamagnifyingglasstowatchprintwillfindthisphenomenon.Scanningthemanuscriptwithascanneralsorevealsthisphenomenononthescreen,soyoumustsolvetheproblem
