Fuser temperature control circuit | HP Enterprise 500 specification

Fuser temperature control circuit

The temperatures of the two rollers in the fuser fluctuate according to the stage of the printing process. The DC controller sends commands to the fuser-control circuit to adjust temperatures.

Figure 1-7Fuser temperature control circuit

Fuser

Fuser sleeve unit

Fuser heater control circuit

Fuser

Fuser heater safety
circuit
Fuser heater safety circuit
Fuser control circuit	Fuser
	Fuser

16 Chapter 1 Theory of operation

ENWW

Image 52

HP Enterprise 500 manual 7Fuser temperature control circuit

Contents

Laserjet Enterprise 500 Color Page HP LaserJet Enterprise 500 color M551 Printers Copyright and License Conventions used in this guide Conventions used in this guide Table of contents Removal and replacement Vii Enww Enww Solve problems 237 Enww 395 Xiii Upgrade not performed error reading upgrade 435 Enww 457 Xvii Parts and diagrams 525 Appendix a Service and support 575 Appendix B Product specifications 587 Appendix C Regulatory information 589 Index 601 List of tables 484 Xxiii Xxiv List of figures Xxvi 22 Remove the pickup roller Tray 1 2 70 Remove the right front cover 1 118 104 Remove the residual toner feed motor 6 141 145 Remove the developing disengagement motor 2 171 186 Reinstall the PGC actuators 2 199 233 Remove the drawer connector optional paper feeder 236 35 Component locations 5 290 Xxxiv Theory of operation Basic operation 1Relationship between the main product systems 1Sequence of operation Sequence of operationPeriod Duration Description Engine control system 2Engine control system 3DC controller block diagram DC controller Switches SolenoidsClutches Component abbreviation Component name Sensors Motors and fans Motors Abbreviation Name Purpose Type Failure detection 6Motors Abbreviation Name Cooling area Type Speed 8High voltage power supply circuits High voltage power supplyCircuit Description Paper Low voltage power supply 5Low voltage power-supply circuit 9Converted DC voltages Main DC voltage Sub-voltage Behavior Safety Sleep powersave modePower supply voltage detection Low voltage power supply failure Power off condition Fuser control10Fuser components Type of component Abbreviation Name Function Fuser temperature control circuit 7Fuser temperature control circuit Fuser over temperature protection Fuser failure detection Laser/scanner system 8Laser/scanner system Enww Image formation system 9Image formation system 11Image formation process Image formation processFunctional block Steps Description Pre-exposure Primary charging Laser-beam exposure Development Primary transfer Secondary transfer Fusing Separation Drum cleaning ITB cleaningPrint cartridge Enww Developing roller engagement and disengagement 22Developing-roller engagement and disengagement control Enww Intermediate transfer belt ITB unit 23 ITB unit Primary-transfer-roller engagement and disengagement 12Primary-transfer-roller engagement states Roller state Product state Enww 25ITB cleaning process Calibration Color misregistration control 13Image-stabilization controls Image stabilization controlImage stabilization control Description Pickup, feed, and delivery system Abbreviation Component SR10 Fuser motor 30Three main units of the pickup, feed, and delivery system Pickup-and-feed unit 31Pick feed mechanism Theory of operation Cassette pickup 32Cassette-pickup mechanism Cassette presence detection 33Cassette presence sensor Theory of operation Cassette lift operation 34Cassette lift mechanism Cassette paper presence detection 35Paper level detection mechanism Theory of operation Cassette media width detection 36Cassette media width detection Multifeed prevention 37Multifeed prevention Multipurpose tray pickup 38Multipurpose tray pickup mechanism Paper feed 39Paper-feed mechanism Theory of operation Skew-feed prevention 40Skew-feed prevention Fusing and delivery unit OHT detection Loop control 42Loop-control mechanism Pressure-roller pressurization control Fuser motor Duplexing unit duplex models 44Duplexing unit Duplexing reverse and feed control Duplex pickup operation 17Jams that the product detects Jam detectionJam Description Fuser delivery delay jam Optional paper feeder 18Electrical components for the paper feeder Component Abbreviation Component name Type Paper-feeder pickup and feed operation 48Paper-feeder pickup and feed operation Paper size detection and cassette presence detection Paper size detection 19Paper size detection Paper feeder cassette lift operation 50Paper-feeder cassette lift Theory of operation Enww Paper feeder presence detection Paper-feeder multiple feed prevention 51Paper-feeder multiple feed prevention Paper feeder jam detection Removal and replacement Removal and replacement strategy Introduction Electrostatic discharge Required tools Service approach Before performing serviceAfter performing service Post service test Parts removal order SSD 3Parts removal order 2 Customer self repair CSR components Print cartridges 5Remove the print cartridge 2 7Remove the duplex reverse guide 2 Removal and replacement Duplex reverse guide Toner collection unit 9Remove the toner collection unit 2 10Remove the toner collection unit 3 Formatter PCA ESD sensitive component Remove the HDD Disk drivesBefore proceeding, remove the following components 14Remove the HDD 2 Remove the SSM Install a replacement hard drive Reload the firmware Tray cassette Fuser Pickup roller Tray Pickup roller Tray 26Remove the pickup roller Tray 2 4 Removal and replacement Pickup and feed rollers Tray 27Remove the Pickup and feed rollers Tray 3 1 Enww Separation roller Tray Secondary transfer roller Reinstall the transfer roller 33Reinstall the transfer roller Secondary transfer assembly Reinstall the secondary transfer assembly 37Reinstall the secondary transfer assembly Intermediate transfer belt ITB Enww Right door optional paper feeder 43Remove the right door optional paper feeder 3 Covers Identification and location Front door assembly Cover on 46Remove the front door assembly 2 Removal and replacement Right door assembly 48Remove the right door assembly 2 50Remove the right door assembly 4 Removal and replacement 52Remove the right door assembly 6 54Remove the right door assembly 8 Removal and replacement Right rear cover Enww Left cover Remove the left cover 61Remove the left cover 4 Removal and replacement Left bottom cover Remove the left bottom cover Left bottom handle Remove the left bottom handle Hardware integration pocket HIP dn and xh models only Control panel assembly Enww Right front cover Remove the right front cover Enww 74Remove the right front cover 5 Removal and replacement Reinstall the power button 75Reinstall the power button Front top cover Remove the front top cover Enww Rear cover and upper rear cover Remove the rear cover and upper rear cover 80Remove the rear cover and upper rear cover 3 Enww Rear top cover Remove the rear top cover 83Remove the rear top cover 2 Removal and replacement Right bottom handle Remove the right bottom handle Rear bottom handle Remove the rear bottom handle Internal assemblies Delivery fan, cartridge fan, and environmental sensor Disconnect five connectors callout Enww Enww Release one tab callout Toner collection sensor Remove the toner collection sensor 97Remove the toner collection sensor 3 Residual toner feed motor Remove the residual toner feed motor 101Remove the residual toner feed motor 3 Enww 105Remove the residual toner feed motor 7 Reinstall the residual toner collection door Registration density RD sensor assembly Remove the RD sensor assembly 109Remove the RD sensor assembly 3 Removal and replacement 111Remove the RD sensor assembly 5 112Remove the RD sensor assembly 6 Removal and replacement Power supply fan and fan duct Remove the power supply fan and fan duct 115Remove the power supply fan 3 Removal and replacement 116Remove the power supply fan 4 Registration assembly Remove the registration assembly 119Remove the registration assembly 3 Remove three screws callout 123Remove the registration assembly 7 Enww Lower pickup guide Remove the lower pickup guide Enww Reinstall the lower pickup guide Interconnect board ICB Remove the ICB Enww Remove the DC controller PCA DC controller PCA and trayESD sensitive part Enww Enww Remove the low voltage power supply 132Remove the low voltage power supply 1 Enww Remove two screws callout Remove the assembly High voltage power supply lower HVPS-D Remove the high voltage power supply lower Enww 142Remove the high voltage power supply lower 4 Reinstall the high voltage power supply lower Developing disengagement motor Remove the developing disengagement motor 145Remove the developing disengagement motor 2 Pickup motor Remove the pickup motor Lifter drive assembly Remove the lifter drive assembly Enww Automatic close assembly Remove the automatic close assembly Cassette pickup drive assembly Remove the cassette pickup drive assembly 152Remove the cassette pickup drive assembly 3 Enww 156Remove the cassette pickup drive assembly 7 Enww 159Remove the cassette pickup drive assembly 10 Reinstall the cassette pickup drive assembly Make sure that the spring callout 1 is correctly installed Cassette pickup assembly Remove the cassette pickup assembly 165Remove the cassette pickup assembly 3 Laser/scanner assembly Y/M Remove the laser/scanner assembly Y/M Enww Enww 172Remove the laser/scanner assembly Y/M 7 Enww 176Remove the laser/scanner assembly Y/M 11 Enww Laser/scanner assembly C/Bk Remove the laser/scanner assembly C/Bk Enww Enww 183Remove the laser/scanner assembly C/Bk 6 184Remove the laser/scanner assembly C/Bk 7 Reinstall the protective glass cleaner PGC actuators 187Reinstall the PGC actuators 3 189Reinstall the PGC actuators 5 Removal and replacement High voltage power supply upper HVPS-T Remove the high voltage power supply upper 193Remove the high voltage power supply upper 4 Enww Reinstall the high voltage power supply upper 195Reinstall the high voltage power supply upper Drum motor Remove the drum motor Drum motor 2 or drum motor Remove the drum motor 2 or drum motor 197Remove the drum motor 2 or drum motor Fuser motor Remove the fuser motor 198Remove the fuser motor Main drive assembly Remove the main drive assembly Enww 204Remove the main drive assembly 6 205Remove the main drive assembly 7 Removal and replacement Reinstall the main drive assembly 206Reinstall the main drive assembly 1 Slowly rotate the shaft near the black cam 210Reinstall the main drive assembly 5 Enww 214Reinstall the main drive assembly 9 Enww Fuser drive assembly Remove the fuser drive assembly Enww 222Remove the fuser drive assembly 6 Removal and replacement Reinstall the fuser drive assembly 223Reinstall the fuser drive assembly Delivery assembly Remove the delivery assembly 225Remove the delivery assembly 2 227Remove the delivery assembly 4 Removal and replacement 228Remove the delivery assembly 5 Reinstall the delivery assembly Duplex drive assembly Remove the duplex drive assembly Optional paper feeder assembly Tray Drawer connector Remove one connector callout Solve problems Solve problems checklist Solve problems checklist Menu map Print the menu maps Current settings pages Print the current settings pages Access the Preboot menu Preboot menu optionsCold reset using the Preboot menu Troubleshooting process Determine the problem sourceTroubleshooting flowchart 1Troubleshooting flowchart Power-on checks Power subsystemPower-on troubleshooting overview Enww Tools for troubleshooting Individual component diagnosticsLED diagnostics Understand lights on the formatter Heartbeat LED, product initialization Formatter to control panel communication interruptions2Heartbeat LED, product initialization Preboot menu 49.XX.YY error or Connectivity LED, product operating 3Heartbeat LED, product operational Connectivity LED Connectivity LED, product initialization 4Connectivity LED, product initialization If the error persists, perform a firmware upgrade HP Jetdirect LEDs 5Connectivity LED, product operational Engine diagnostics Defeating interlocks 2Diagnostic test 2 Disable cartridge check Administration Troubleshooting Diagnostic Tests Engine test button 4Engine-test button Paper path test Paper path sensors test 6Paper-path sensors diagnostic tests Sensor name Sensor number Sensor or switch name Sensor or switch number 7Manual sensor diagnostic testsManual sensor test Registration sensor Fuser loop sensors Open the right door Lower the secondary transfer assembly Fuser output sensor Duplexer refeed sensor Output-bin full sensor Fuser pressure-release sensor ITB alienation sensor Enww Right- and front-door interlock switches Enww 8Manual sensor test 2 diagnostic tests Tray/bin manual sensor test Tray 1 paper sensor Tray 2 paper sensor Tray 2 cassette sensor Tray 2 cassette lifter sensor Tray 3 empty sensor Tray 3 media feed sensor Tray 3 stack surface sensor Print/stop test Tray 3 media size sensors Component test special-mode test Component tests9Component test details Fuser Pressure Release Motor Alienation MotorITB Contact/Alienation TCU Motor Diagrams Block diagrams 10Sensors Location of connectors DC controller PCA Paper feeder driver PCA 30Paper feeder driver PCA Locations of major components Plug/jack locationsBase product 32Component locations 2 33Component locations 3 Solve problems 34Component locations 4 2219 PCAs, motors, fans, switches, solenoids, and clutches Location Connector Component Component name Abbreviation 13PCAs, motors, fans, switches, solenoids, and clutches Location Connector Component abbreviation Component name 500 paper feeder General timing chart Timing chart Circuit diagrams Inter 40 Paper feeder circuit diagram Print quality troubleshooting pages Internal print-quality test pages Yellow Green 44Black print-quality troubleshooting Print quality assessment Enww Process a cleaning CleaningSet up an auto cleaning Configuration Configuration 45Configuration Security Settings information HP embedded Jetdirect Finding important information on the configuration pages 14Important information on the configuration pagesAccessories and internal storage Diagnostics menu Color band test Print quality troubleshooting tools Repetitive defects ruler Calibrate the product Sign In menu Control panel menus15Sign In menu Cancel Retrieve Job From USB menuRetrieve Job From USB menu Select a File or Folder Retrieve Job From Device Memory menu Retrieve Job From Device Memory menuAll Jobs With PIN Menu options include 17Retrieve Job From Device Memory menu Copies Copies field Delete isDelete Select Delete Enter Pin to Job without Print CopiesDelete Delete All Jobs Supplies menu 18Supplies menu Color Cartridges Very Low Stop Settings Prompt to Continue SettingsLow Threshold Low Threshold Cyan Cartridge Settings Magenta Low Threshold CartridgeYellow Cartridge Settings Specify Settings Prompt to Color/Black Mix Mostly Black Mostly Color Pages Color Pages if Off Messages menu to Reset Supplies New Fuser Kit YesLevel Gauge Enww First level Second level Values Trays menuManage Trays Use Requested Tray Exclusively First 19Trays menu Alternative Letterhead Disabled DisabledMode Enabled Image Rotation Standard Alternate Tray 1 Size Tray 1 TypeTray 2 Size Tray 2 Type Reports menu Administration menu20Reports menu Guide for matching printed colors General Settings menu General Settings menu 21General Settings menu Wake/Auto On All Events Network port Power button OnlyFirst level Second level Third level Fourth level Values After Enww Midtones are the middle-range color- values in an image Restore Color Registration X1 Shift Mm to Y1 Shift X2 Shift Default = Y2 Shift Adjust Paper Print ModeTransparency Sensing Pre-Rotation Off Mode Humidity Mode Normal HighDown Paper Curl Mode Normal Reduced Smooth setting SmoothStandard. Heavy Paper Standard Tray Normal Alternate Low VoltageBackground Normal Alternate Alternate 1 setting Alternate 2 settingAlternate 3 setting Alternate 2 settings Fuser Temp Normal Alternate Enww Jam Recovery Auto Off Held Timeout Hour Default FolderManage Stored Quick Copy Job Manage Stored Enww Retrieve From USB Settings menu General Print Settings menuRetrieve From USB Settings menu General Print Settings menu 23General Print Settings menu Setting is 0.44 to 99.99. Factory default setting isFont Point Size Range 4.00 Default = Symbol Set Default Print Options menu 24Default Print Options menu Enww Flip-style Edge to Edge Enabled DisabledJobs. If Book-style Display Settings menu Display Settings menu Manage Supplies menu 25Display Settings menu26Manage Supplies menu Stop The product stops until you replace the print cartridge Enww Different percentage for each color Unit Settings Prompt to Cause an errorLow. Continuing to Print without Settings Color/Black Mix Auto Pages Black Pages if Reset Supplies New Fuser KitSupply Messages Low Message Off Manage Trays menu 27Manage Trays menu Alternative Letterhead Mode Disabled First level Values Description Use Another Tray EnabledBlank Pages Auto Yes Override A4/Letter 28Network Settings menu Network Settings menuJetdirect Menu IPv4 Settings Config Bootp Method Manual Settings menu to configure TCP/ IPv4 parameters29Jetdirect Menu Auto IP Enww Dhcp Renew Yes Primary DNSXxx.xxx.xx.x Secondary Enww Router Policy Specified UnavailableRouter Unavailable If Idle Timeout Proxy Port Disable IPSec 802.1x ResetSecurity Required Optional Reset Security Yes Diagnostics Embedded LAN HW Test Yes Tests TCP/IP Snmp Test Yes Http Test YesData Path Test Yes Time ExecutionExecute Yes IPv6 Dest IPv4127.0.0.1 Dest IPv6 Packet Size Print Results Yes Execute Ping Results Packets SentPackets Received RTT Max RTT MinRTT Average Enww 100TX Half or 10T Half is set10T Half 10T Full 30Troubleshooting menu Troubleshooting menuExit Troubleshooting Print Event Log Print Diagnostic Pages TroubleshootingPrint Paper Path Print Quality Print PQ Select Print Test Check Paper Path Start TestSensors Paper Path Test Print Test Number of Copies Range 1 Default = Manual SensorTest Manual Tray/Bin Repeat Off Print/Stop Test Device Maintenance menu Backup/Restore menuCalibrate/Cleaning menu 31Backup/Restore menu Product automatically Delay Calibration at Yes Wake/Power On First level Second level Values Description Full Calibration USB Firmware Upgrade menu Memory error 10.0X.Y0 Supply memory errorLabel missing 10.22.50 10.22.5110.22.52 10.23.50 10.23.51 10.23.5210.23.60 Printing past very low 10.XX.40 Genuine HP supplies installed 10.XX.34 Used supply in use 10.XX.41 Unsupported supply in use 10.XX.70 Printing past very low 10.YY.15 Install supply 10.YY.25 Wrong cartridge in color slot 10.YY.35 Incompatible supply YY Internal clock error 13.00.0013.A3.D3 13.A3.FF 13.B2.A1 13.B2.A213.B2.A3 13.B2.D1 13.WX.EE 13.D3.DZ13.WX.FF 13.WX.YZ Fuser area jam 13.WX.YZ Fuser wrap jam 13.WX.YZ Jam below control panel 13.WX.YZ Jam in middle right door 13.WX.YZ Jam in right door 13.WX.YZ Jam in Tray Insufficient memory To continue, press OK Too complex 32.08.XX 32.1C.XX Enww Recommended action Enww 32.21.00 33.XX.YY Error33.XX.YY Used board/disk YZ Unexpected size in tray YZ Unexpected type in tray LBP OHT YZ Error To continue, press OK Enww 42.XX.YY 47.00.XX47.01.XX 47.02.XX 47.WX.YZ Printer calibration error To continue, press OK 47.03.XX47.04.XX 47.05.00 47.FC.23 49.XX.YY To continue, turn off then on 50.WX.YZ Fuser error To continue, turn off then on Enww Enww YY Error XX To continue, turn off then on 54.XX.YY Error Recommended action 54.00.03 54.0X.0D or 54.0X.0E 55.0X.YY DC controller error To continue, turn off then on YY DC controller error To continue, turn off then onYY Error To continue, turn off then on 57.00.0Y Error To continue, turn off then on 58.00.04 59.05.XX Recommended action 59.00.04 or 60.00.0Y Tray Y lifting error 59.05.08 or 61.00.01 Error To continue, turn off then onNo system To continue, turn off then on 81.0X.YY Embedded JetDirect error Corrupt data in firmware volume Corrupt data in solutions volume Corrupt data in configuration volumeCorrupt data in job data volume Upgrade not performed file is corrupt Upgrade not performed timeout during receive Upgrade not performed error writing to disk Upgrade not performed error reading upgrade Upgrade canceled by user Upgrade not performed the file is invalid 99.00.2X Unsupported disk Unknown diskIncorrect disk Disk malfunction Disk data error No disk data installedDisk is not bootable please download firmware 99.XX.YY Supply almost full Binname Full Remove all paper from binSupply low or Supplies low Supply very low or Supplies very low Tray X lifting File System device failure To clear, press OKFile System file operation failed To clear, press OK File System file system is full To clear, press OK File System is not initialized File System is write protectedAccept bad signature Bad optional tray connection Calibration reset pending CancelingCanceling... jobname Checking engine Cleaning do not grab paper Chosen personality not available To continue, press OKClearing event log Clearing paper path Creating cleaning Close front doorClose lower right door Close upper right door HP Secure Hard Drive disabled Data received To print last page, press OKEIO X disk initializing Event log is empty Incompatible supply Incompatible supplies Install supply Close rear door Install supplyInstall Fuser Unit Install Transfer Unit Install suppliesInternal disk not functional Load Tray X Type, Size Internal disk spinning upLoad Tray X Type, Size To use another tray, press OK Manually feed Type, Size To use another tray, press OK Manually feed Type, SizeMoving solenoid No job to cancel Moving solenoid and motorPaused Performing Color Band Test Printing Configuration Printing DiagnosticsPlease wait Printing Cmyk samples Printing Engine Test Printing Event LogPrinting File Directory Printing Font List Printing PQ Troubleshooting Printing HelpPrinting Menu Map Printing Registration Printing Supplies Status Printing UsageProcessing duplex job Do not grab paper until job completes Processing Processing... copy X of Y ReadyReady IP Address Remove all print cartridges Remove shipping lock from Tray Replace supply Replace Supplies Restore Factory Settings Restricted from printing in colorRotating color motor Rotating motor Size mismatch in Tray Sleep mode onSupplies in wrong positions Tray X empty Type, Size Tray X open Troubleshooting Unsupported drive installed To continue, press OKTray X overfilled Type mismatch Tray Unsupported tray configuration Unsupported USB accessory detected Remove USB accessory USB accessory not functional Wrong cartridge in color slot Event log messages 48Sample event log Print the event log from the Service menu Print the event log from the Administration menuPrint an event log View an event log from the Administration menu Viewing the event log from the Service menuView an event log Clear an event log Clear jams Product is jammed Cause SolutionCommon causes of jams Jam locations 49Jam locations Clear jams in Tray Enww Clear jams in the output bin area Clear jams in Tray Clear jams in the right door Enww Enww Enww Enww Clear jams in the lower right door Tray Jam causes and solutions 33Causes and solutions for delivery delay jam34Causes and solutions for fuser delivery delay jams Jams in the output bin 36Causes and solutions for fuser delivery stationary jams 35Causes and solutions for wrapping jams37Causes and solutions for residual media jams 38Causes and solutions for pickup delay jams PCA 39Causes and solutions for pickup stationary jams 41Causes and solutions for duplex repick jams 40Causes and solutions for duplexing reverse jamsJams in the duplex area duplex models 43Causes and solutions for pickup delay jam 1 tray pickup 42Causes and solutions for residual media jamsJams in Tray 1, Tray 2 and internal paper path 44Causes and solutions for pickup stationary jams 45Causes and solutions for pickup delay jam 1 MP tray pickup Jams in Tray Change jam recovery Solve paper handling problems Product feeds multiple sheets Cause SolutionPaper does not feed automatically Cause Solution Product feeds multiple sheets Or, change the Manually Feed Prompt setting to Unless 47Print modes under the Adjust Paper Types sub menu Select a manual print modeUse manual print modes 48MP modes under the Optimize submenu Tray BackgroundUniformity Control Fuser Temp Solve image quality problems Problem Sample Cause SolutionImage defects table Image defects table 49Image defects table Clean the window and remove any Replace the high-voltage power Dirty, replace the ITB Execute a Pressure roller clean Clean the paper path Clean the productSet up an auto cleaning 50Solve performance problems Solve performance problemsProblem Cause Solution Solve direct connect problems Solve connectivity problemsSolve network problems Enww Service mode functions Service menu Service ID Cold Reset PaperCleaning Clear Event Log Restore factory-set defaults Product resetsRestore factory-set defaults values Product cold reset Clean Disk and Partial Clean functionsActive and repository firmware locations Partial Clean Characteristics of a Partial CleanReasons for performing Partial Clean Execute a Partial Clean Reasons for performing Clean Disk Clean DiskExecute a Clean Disk Enww 51Preboot menu options 1 Sign Clean Disk Partial CleanPassword Clear Password 52Preboot menu options 2 Device 53Preboot menu options 3External 54Preboot menu options 4 55Preboot menu options 5 56Preboot menu options 5 Service ToolsReset Password Jetdirect Off Product updates Determine the installed revision of firmwarePerform a firmware upgrade Embedded Web Server USB storage device Preboot menu USB storage device control-panel menu Enww Parts and diagrams Order parts, accessories, and supplies Accessories Part numbersPrint cartridges and toner collection unit Memory Customer self repair CSR and service kits Simplex Screws How to use the parts lists and diagramsCommon fasteners How to use the parts lists and diagrams Simplex model Duplex model See Right-door assembly External covers, panels, and doors Description Part number Qty Right-door assembly Right-door assembly Internal assemblies 1 3Internal assemblies 1 4Internal assemblies 1 Internal assemblies 2 4Internal assemblies 2 5Internal assemblies 2 Internal assemblies 3 501 25 26 6Internal assemblies 3 Internal assemblies 4 6Internal assemblies 4 7Internal assemblies 4 Internal assemblies 5 7Internal assemblies 5 8Internal assemblies 5 Cassette Cassette Description Part number Qty Cassette RM1-8125-000CN Paper pickup assembly 9Paper pickup assembly Paper pickup assembly PCAs 10 PCAs PCAs Assessories 500-sheet paper feeder 500-sheet paper feeder 12Paper feeder covers Parts and diagrams Paper feeder covers Paper feeder covers 13Paper feeder main body Parts and diagrams Paper feeder main body Paper feeder main body Paper feeder cassette 14 Cassette Cassette 15Paper feeder PCA Parts and diagrams Paper feeder PCA Part number Qty Paper feeder PCARM1-5839-000CN 17Alphabetical parts list Alphabetical parts listDescription Part number PCAs on Duplexing unit cable assembly RM1-5730-000CN Paper pickup assembly Paper feeder PCA Spring, compression RU6-2316-000CN 18Numerical parts list Numerical parts listPart number Description RC2-5426-000CN Cover, front right Part number Description RM1-5696-000CN Waste toner detect assembly RM1-6198-000CN Cassette assembly Tray RM1-8167-000CN Right-door assembly simplex Enww Service and support Hewlett-Packard limited warranty statement Hewlett-Packard limited warranty statement Enww Enww Data stored on the print cartridge End User License Agreement Transfer Hewlett-Packard Development Company, L.P Rev /09 OpenSSL Customer self-repair warranty service Customer support Product specifications Physical specifications Table B-1Product dimensionsProduct Height Depth Width Weight Product Height Depth Width Regulatory information FCC regulations Environmental product stewardship program Return and recycling instructions United States and Puerto RicoMultiple returns more than one cartridge Single returns Paper Material restrictionsNon-U.S. returns Residents of Alaska and Hawaii Enww Energy Use Declaration of conformitySupplementary Information September Boise, Idaho USAFor Regulatory Topics only, contact Certificate of volatility Types of memoryVolatile memory Non-volatile memory Safety statements Laser safetyVcci statement Japan Power cord instructions Power cord statement Japan EMC statement Korea Laser statement for Finland Luokan 1 laserlaite GS statement Germany Restriction on Hazardous Substances statement Ukraine Index Cables See also tests troubleshooting diagrams See also jams fans Pages PCL Registration density RD sensor See also cassette Power 244 Page CF079-90942* *CF079-90942