Internal assemblies, Procedure for HP LaserJet 6L Pro | HP 6L pro

Internal assemblies

Control Panel

Procedure for HP LaserJet 5L and 6L

1Remove the Printer Covers.

2Use the needlenose pliers to release the Control Panel connector (Figure 6-7,callout 1).

3Press the tab on the top of the Control Panel downward (Figure 6-7, callout 2). The Control Panel will pop out of the printer chassis.

4Lift the Control Panel out.

Procedure for HP LaserJet 6L Pro

1Remove the Printer Covers.

2Press the tab on the top of the Control Panel downward (Figure 6-7, callout 2). The Control Panel will pop out of the printer chassis.

Note	The Control Panel on the HP LaserJet 6L Pro is soldered directly to the wiring harness. It is not attached
	with a connector. Do not try to separate the Control Panel from the wiring harness.
	3	Press the tab on the top of the Control Panel downward (Figure 6-7, callout 2).The Control Panel
		will pop out of the printer chassis.
	4	Carefully remove the cable from the guides on the printer chassis.

Note	The other end of the wiring harness is attached to the Formatter PCA with a connector. See “Formatter
	PCA” later in this chapter for more information.

1

2

Figure 6-7	Control Panel removal
78 Removal and replacement		EN

Image 80

HP 6L pro, 6L Gold manual Internal assemblies, Procedure for HP LaserJet 5L and 6L, Procedure for HP LaserJet 6L Pro

Contents

Printer Page HP LaserJet 5L/6L/6L Gold/6L Pro Printer Warranty Trademark Credits Conventions Page Contents Printer maintenance Appendix a Parts index Appendix B Regulatory information Figures Page Tables Page Chapter contents Product information Printer features Printer Features DescriptionPrinter Features Paper capacities and sizes Model and serial IdentificationHP LaserJet 6L Gold 2HP LaserJet 6L model and serial numbers 3HP LaserJet 6L Pro model and serial numbers Acoustic emissions SpecificationsPerformance specifications Category Specification Product overview 4Front/side views of the printer 1415 6Back view of the printer Service approach Parts Exchange ProgramOrdering parts Ordering related documentation Technical assistance HP Customer Care Customer Care options worldwide In-country/region support Open Monday through Friday HP worldwide sales and service offices Argentina Australia Austria India Indonesia Israel Russian Federation Singapore Spain Hardware service after the warranty period WarrantyHardware service during the warranty period HP LaserJet Toner Cartridge warranty Voltage conversions Product information Site requirements Operating environment Install in a well-ventilated, dust-free areaSite requirements Printer space requirements Storing opened toner cartridges HP C3906A/F Toner CartridgeStorage conditions Toner cartridge handling suggestions 2Toner cartridge distribution Site requirements Operating overview Using the Control Panel Indicator lightsControl Panel layout Blinking Using the Control Panel Control Panel Button Control Panel Button usage Function Lights Action Result Printing a self-test 1Self-test page for HP LaserJet 5L 2Self-test page for HP LaserJet 6L 3Self-test page for HP LaserJet 6L Pro Printing an engine test Continuous self test Resetting the printer To reset the printer Operating overview Printer maintenance Life expectancy of consumables Pressure Roller Toner cartridge life Saving toner with EconoMode Refilled toner cartridges Recycling toner cartridges Cleaning printer components Component Cleaning Method/Notes Cleaning the printerCleaning printer components Cleaning spilled toner Functional overview 1Printer functional block diagram Basic printer functions DC Controller/power system 2DC Controller loads Power system on DC Controller PCA Print engine control system DC power distribution High voltage power distributionOvercurrent/overvoltage protection SleepMode Random access memory RAM Formatter systemRead only memory ROM Parallel interface Resolution Enhancement technology REt EconoModeMemory Enhancement technology MEt Enhanced I/O Protect PJL overview Image formation system Toner cartridge Drum cleaning Image fusingDrum conditioning Image writing Paper feed system 5Simplified paper path Solenoid and sensors Number Name Description SL1 Paper jam detection Basic sequence of operation Printer timing Period Timing Purpose 7General timing diagram HP LaserJet 5L Functional overview Removal and replacement Removal and replacement strategy Required tools 1Phillips and PosiDriv screwdrivers Installing memory cards Dram Push it firmly into the printer Covers and doors Back Cover To reinstall 3Back Cover removal 2 EP Door Assembly 4EP Door Assembly removal Memory Door 5Memory Door removal Main Cover and Paper Input Assembly Internal assemblies Procedure for HP LaserJet 5L and 6LProcedure for HP LaserJet 6L Pro Exit Roller Assembly 8Exit Roller removal Delivery Assembly 9Delivery Assembly removal 1 10Delivery Assembly removal 2 Fuser Pressure Plate 11Fuser Pressure Plate removal 12Fuser Pressure Plate replacement Heating Element 13Heating Element removal 1 14Heating Element removal 2 15Heating Element removal 3 Pressure Roller Pressure Roller Guide removal Face-Up/Face-Down Lever replacement Face-Up/Face-Down Lever Fuser Exit Roller Assembly 18Fuser Exit Roller removal 19Paper Exit Sensor Flag replacement Paper Exit Sensor Flag Laser/Scanner Assembly Top assemblies Solenoid 21Solenoid removal 1 22Solenoid removal 2 Pickup Roller Assembly 23Pickup Roller Assembly removal 1 24Pickup Roller Assembly removal 2 25Paper Pickup Roller Assembly replacement inside/front view Paper Feed Frame 26Paper Feed Frame removal 1 27Paper Feed Frame removal 2 28Paper Feed Frame removal 3 29Paper Feed Frame removal 4 Transfer Roller Guide and Transfer Roller Kick Plate 31Kick Plate removal 32Kick Plate Spring replacement Separation Pad 33Separation Pad removal Press toward the top of the printer SubpadsPlace your index finger on the subpad Feed Assembly 35Feed Assembly removal 1 36Feed Assembly removal 2 37Feed Assembly removal 3 Bottom assemblies Memory Door Guide Motor 39Motor removal DC Controller 40DC Controller removal 1 41DC Controller removal 2 42DC Controller removal 3 Formatter PCA Formatter Board removal Troubleshooting General troubleshooting flowchart On following General Troubleshooting Flowchart Paper path and components 1Paper path and components DC Controller diagram 2DC Controller PCA components Printer error troubleshooting Priority of errors Printer status messages Paper Jam Unclearable error Sleep Mode Service and error messages Service and error messages PCA Service and error messages 3of Scanner Error. Caused by a Image formation troubleshooting Check the toner cartridge Image defect examples Faded printStaining Vertical lines Horizontal stripes Repetitive defectsVertical white stripes Character voids Background scatter BlackDropouts Half of the page Is blank or loss of detail Blank pages all pages Curled or wrinkled sheetsBlank page occasional Dark background DotsDirt on the back Blank spots Distorted image or BD failure Faulty registration/skewed imageWhite horizontal line Troubleshooting checks Engine testEngine Test Button location Printing an engine test Half self-test functional check Drum rotation functional check High-voltage power supply check High-voltage power supply check Check Action 6Toner cartridge high-voltage connection points 2 Paper curl Paper surface To override PS204 and SW101 Troubleshooting toolsPaper path check Repetitive image defect ruler 8Repetitive image defect ruler Main wiring diagram 9Main wiring diagram Cable pinouts Connector Signal name Remarks Troubleshooting Parts and diagrams How to use the part lists and diagrams Ordering consumables Accessories and supplies Accessories and supplies Product number Description Common hardware Common fasteners used in the printer Example Description Parts diagrams 1Major assembly locations 2Covers and doors Parts diagrams 3Internal components 1 Parts diagrams 4Internal components 2 502 XB1-1300-807CN Screw, PH, M3x8 See Parts diagrams DC Controller/formatter and cables Parts diagrams 7Pickup Roller assembly Parts diagrams Feed assembly Parts diagrams 9Separation Guide assembly Parts diagrams 10Delivery assembly Parts diagrams Parts and diagrams Parts index Alphabetical parts listTable A-1 Alphabetical parts list Description Parts index Table A-1 Alphabetical parts list Description Table A-1 Alphabetical parts list Description Table A-1 Alphabetical parts list Description Numerical parts list Table A-2 Numerical parts list Description Numerical parts list Table A-2 Numerical parts list Description Table A-2 Numerical parts list Description Table A-2 Numerical parts list Description Laser Safety U.S Regulatory information Laser Statement Finland Laserturvallisuus Luckan 1 Laserlaite Klass 1 Laser ApparatVaroitus Varning Ozone emission Toner safetyMaterial data safety sheet FCC Statement Class B Vcci Statement Japan Index 181 182 183 ROM/RAM 184 Jedia 185 186 PCL 187 188 189 Wait 190 Page C8060-90903