Color LaserJet 8500/8550 Printer Family Service Manual This manual contains the necessary information to service the Color LaserJet 8500/8550 Printer Family Printers Contents: 1 Product Information Introduction Printer features Specifications Site requirements Media requirements Identification (model and serial numbers) Printer Information Safety information 2 Service approach Chapter contents Introduction Parts and supplies Ordering Technical assistance Warranty 3 Operational overview Chapter contents Verifying package contents Verifying the cables are installed Connecting the printer to the network Changing the printer control panel overlay Printer control panel layout Menu maps Selecting the display language Installing the consumables Configuring input trays Verifying the printer is installed correctly Verifying DIMM installation Duplex registration (HP Color LaserJet 8550) Booklet printing HP TonerGauge (HP Color LaserJet 8550) 4 Printer maintenance Chapter contents Cleaning procedures Printer consumables 5 Theory of operation Chapter contents Introduction Color theory Image formation Consumable detection mechanisms Electrical systems Mechanical systems Paper path Printer timing EPH controller board Duplexer 2,000-sheet input unit Multi-bin mailbox 3,000-sheet stapler/stacker 6 Removal and replacement Chapter contents Introduction Maintenance units Doors and covers Top assemblies Front assemblies Left assemblies Right assemblies Rear assemblies 2,000-sheet input unit Multi-bin mailbox 3,000-sheet stapler/stacker and 3,000-sheet stacker 7 Troubleshooting Chapter contents Pre-troubleshooting checklist Printer message troubleshooting Aids to troubleshooting Paper path troubleshooting Image formation troubleshooting Image defects troubleshooting Color balance adjustment Repetitive defects troubleshooting Repetitive defects troubleshooting 2,000-sheet input unit troubleshooting Multi-bin mailbox troubleshooting 3,000-sheet stapler/stacker troubleshooting Communications troubleshooting Diagrams 8 Parts and diagrams Chapter contents Overview Ordering parts Illustrations and parts lists Numerical parts list Alphabetical parts list Index FORMAT: High resolution PDF document ZIP archive: 135 497 kB
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