LaserJet 1200 printer Service Manual This manual contains the necessary information to service the HP LaserJet 1200 Series printer. Contents: 1 Product information Chapter contents Introduction Hardware description Firmware description Product specifications Model and serial numbers Overview of printer Front and side view Back and side view Overview of optional copier/scanner Top view Warranty statement Extended warranty Toner cartridge information Refilled toner cartridges Recycling toner cartridges 2 Installation and operation Chapter contents Operating environment Identifying printer components Printer control panel Control panel light patterns Copier/scanner control panel Selecting media Selecting media to print . Selecting media to copy or scan Loading media Loading media to print Loading media to copy or scan . Printer output paths 3 Maintenance Chapter contents Life expectancies of consumables User-replaceable parts Replacing the printer pickup roller Replacing the printer separation pad Replacing the copier/scanner separation pad Cleaning the equipment Cleaning the print path Cleaning the toner cartridge area Cleaning the printer pickup roller Cleaning the printer separation pad Cleaning and recalibrating the copier/scanner Cleaning the scanner path 4 Operational overview Chapter contents Basic functions Formatter system Control panel Draft mode MEt Enhanced I/O PJL overview Printer functions Engine control unit/power system Image formation system Printer paper-feed system Jam detection Optional copier/scanner Optical system Document pickup and feed systems Basic sequence of operation (formatter-to-printer) 5 Removal and replacement Chapter contents Removal and replacement strategy Required tools Before performing service Toner cartridge Parts removal order Covers Left side cov Optional copier/scanner Back cover Right side cover Top cover Control panel assembly Front cover assembly Internal assemblies Transfer roller Formatter Laser/scanner assembly Fuser assembly Output rollers Motor Solenoid Fan assembly Right plate assembly Pickup assembly Pickup roller shaft Paper lift plate assembly Left plate assembly Bottom assemblies ECU pan Paper-feed assembly 6 Troubleshooting Chapter contents Basic troubleshooting Errors Control panel light messages Fatal error secondary messages Checking the toner cartridge Solving image-quality problems Solving paper-feed problems Solving print paper-feed problems Solving copying and scanning paper-feed problems Functional checks Engine test Half self-test functional check Drum rotation functional check Heating element check High-voltage power supply check Paper path check Service mode functions NVRAM initialization/cold reset PJL software commands Troubleshooting tools Internal reports Repetitive image defect ruler Main wiring Locations of connectors Locations of LEDs, jumpers, and switches 7 Parts and diagrams Chapter contents Ordering parts and supplies Parts Related documentation and software Consumables Accessories How to use the parts lists and diagrams Common hardware Assembly locations Printer trays & optional copier/scanner Covers Internal assemblies Internal components (1 of 2) Internal components (2 of 2) Electrical components Paper pickup assembly (1 of 2) Paper pickup assembly (2 of 2) Fuser assembly Alphabetical parts list Numerical parts list FORMAT: High resolution PDF document! ZIP archive: 6 857 kB
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