Quick ReferenceService ManualHP DesignJet 430HP DesignJet 450CHP DesignJet 455CAPrinters ENGLISH Copyright Hewlett-Packard Company 1997This document containsproprietary information that isprotected by copyright. Allrights are reserved. No part ofthis document may bephotocopied, reproduced, ortranslated into anotherlanguage without the priorwritten consent of Hewlett-Packard Company.First edition, November 1997WarrantyThe information contained inthis document is subject tochange without notice.Hewlett-Packard makes nowarranty of any kind withregard to this material,including, but not limited to,the implied warranties ofmerchantability and fitnessfor a particular purpose.Hewlett-Packard shall not beliable for errors containedherein or for incidental orconsequential damages inconnection with the furnishing,performance, or use of thismaterial.WARNINGThe procedures described inthis manual are to beperformed by HP-qualifiedservice personnel only.Electrical Shock HazardSerious shock hazard leadingto death or injury may result ifyou do not take the followingprecautions:Ensure that the ac poweroutlet (mains) has aprotective earth (ground)terminal.Disconnect the Printer fromthe power source prior toperforming anymaintenance.Prevent water or otherliquids from running ontoelectrical components orcircuits, or through openingsin the enclosure.Product Support, Barcelona DivisionHewlett-Packard Espaola, S.A.Avda. Graells, 50108190 Sant Cugat del VallsSpainQuick Reference Service Manual 1HP DesignJet 430, 450C and 455CA Printers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uick Reference Service ManualHP DesignJet 430, 450C and 455CA PrintersC0087C0104C0097C0116 C0099C0097C0110 C0073 C0100C0111 C0105C0102 C0116C0104C0101 C0080C0114C0105C0110C0116C0101C0114 C0099C0111C0110C0116C0105C0110C0117C0111C0117C0115C0108C0121 C0114C0101C0106C0101C0099C0116C0115 C0067C0097C0114C0116C0114C0105C0100C0103C0101C0115C0063! C0097 C0097 C0097C0097 C0079 C0097 C0097 C0079C0078C0097 C0097 C0082C0101C0109C0111C0118C0101 C0116C0097C0112C0101 C0097C0110C0100 C0097C0108C0105C0103C0110 C0099C0097C0114C0116C0114C0105C0100C0103C0101C0115C0046 C0087C0104C0101C0110 C0110C0111C0122C0122C0108C0101 C0102C0097C0105C0108C0117C0114C0101C0115 C0111C0099C0099C0117C0114C0044 C0099C0108C0101C0097C0110 C0116C0104C0101 C0102C0108C0101C0120 C0099C0111C0110C0116C0097C0099C0116C0115 C0111C0110 C0116C0104C0101C0099C0097C0114C0116C0114C0105C0100C0103C0101 C0097C0110C0100 C0105C0110 C0116C0104C0101 C0067C0097C0114C0114C0105C0097C0103C0101C0046 C0082C0101C0109C0111C0118C0101 C0097C0108C0108 C0099C0097C0114C0116C0114C0105C0100C0103C0101C0115 C0102C0114C0111C0109 C0116C0104C0101 C0067C0097C0114C0114C0105C0097C0103C0101 C0097C0110C0100 C0116C0114C0121 C0105C0110C0115C0116C0097C0108C0108C0105C0110C0103 C0106C0117C0115C0116C0116C0104C0101 C0114C0101C0106C0101C0099C0116C0101C0100 C009