Samsung ML-4550 Service Manual

Also see for ML ML-4551N: Specifications Solution guide Quick install guide User guide Declaration of conformity

Contents

PrecautionsSamsung ElectronicsService Manual 1-1111. PrecautionsIn order to prevent accidents and to prevent damage to the equipment please read the precautions listedbelow carefully before servicing the printer and follow them closely.1.1 Safety Warning(1) Only to be serviced by appropriately qualified service engineers.High voltages and lasers inside this product are dangerous. This printer should only be serviced by a suitablytrained and qualified service engineer.(2) Use only Samsung replacement partsThere are no user serviceable parts inside the printer. Do not make any unauthorized changes oradditions to the printer, these could cause the printer to malfunction and create electric shock or fire hazards.(3) Laser Safety StatementThe Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J forClass 1(1) laser products, and elsewhere, it is certified as a Class I laser productconforming to the requirements of IEC 825. Class I laser products are not considered to be hazardous. Thelaser system and printer are designed so there is never any human access to laser radiation above a Class Ilevel during normal operation, user maintenance, or prescribed service condition.Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. Thereflected beam, although invisible, can damage your eyes. When using this product, these basic safetypre-cautions should always be followed to reduce risk of fire, electric shock, and injury to persons.CAUTION - INVISIBLE LASER RADIATIONWHEN THIS COVER OPEN.DO NOT OPEN THIS COVER.VORSICHT - UNSICHTBARE LASERSTRAHLUNG,WENN ABDECKUNG GE FFNET.NICHT DEM STRAHL AUSSETZEN.ATTENTION - RAYONNEMENT LASER INVISIBLE EN CASD OUVERTURE. EXPOSITION DANGEREUSEAU FAISCEAU.ATTENZIONE - RADIAZIONE LASER INVISIBILE IN CASO DIAPERTURA. EVITARE L ESPOSIZIONE ALFASCIO.PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.EVITAR EXPONERSE AL RAYO.ADVARSEL. - USYNLIG LASERSTR LNING VED BNING, N RSIKKERHEDSBRYDERE ER UDE AF FUNKTION.UNDG UDSAETTELSE FOR STR LNING.ADVARSEL. - USYNLIG LASERSTR LNING N R DEKSELPNES. STIRR IKKE INN I STR LEN.UNNG EKSPONERING FOR STR LEN.VARNING - OSYNLIG LASERSTR LNING N R DENNA DELR PPNAD OCH SP RREN R URKOPPLAD.BETRAKTA EJ STR LEN. STR LEN R FARLIG.VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSAOLET ALTTIINA N KYM TT M LLE LASER-S TEILYLLE L KATSO S TEESEEN.