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HP Pro 4300 C9H70UT C9H70UT#ABA manual Ordering parts, supplies, and getting support

Models: Pro 4300 C9H70UT C9H70UT#ABA

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Ordering parts, supplies, and getting support

	Ordering information
	This chapter contains field replaceable unit (FRU) and accessory part numbers. Replacement
	parts can be ordered from the HP Services. Go to http://www.hp.com/go/parts/ for information
	about ordering service parts in your area. Go to http://www.hp.com/go/partsinfo/ for the online
	HP service parts identification tool (HP PartSurfer).

CAUTION	Use only the parts and accessories that have been specifically designed for this printer. Order
	accessories from an authorized HP service or support provider, or online at http://www.hp.com.


Note	Parts that have no item number or part number listed are not field replacement parts and cannot
	be ordered.

Related documentation and software

Order documentation and software from the sites listed in table 81.

Support

Table 81. Technical support websites

HP Connect Online.	http://www.connect-online.hp.com
(for HP partners).	HP Connect Online is an Internet site that is created
	exclusively for our partners. You can easily find all the HP
	information that you need for your daily business. And you
	can get it earlier than from any other site.

HP Customer Care Online.	http://www.hp.com
Software drivers, support	Select your country/ region in the “select a country or
documentation, and answers to	region” field located on the web page. Select the support
frequently asked questions.	block.

HP Technical Training.	USA: http://www.partner.americas.hp.com
Classes and schedules.	Canada: http://www.canada.hp.com
	Asia: http://partnercare.asiapac.hp.com
	Latin America: http://www.conecta.latinamerica.hp.com

Parts.	http://www.hp.com/go/parts/
Parts information.	http://www.hp.com/go/partsinfo/
	http://www.partsurfer.hp.com

Supplies/paper.	USA: http://www.hp.com/go/orderssupplies-na
Ordering information.	Canada: http://www.hp.ca/catalog/supplies
	Europe: http://www.hp.com/go/supplies
	Asia Pacific: http://www.hp.com/paper

362 Parts and diagrams

Q2431-90912

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HP Pro 4300 C9H70UT C9H70UT#ABA manual Ordering parts, supplies, and getting support, Ordering information

Contents

Hp LaserJet Page Service Q2431-90912 Copyright Information Table of contents Printer operation Removing and replacing parts Troubleshooting Index Viii Table of contents Q2431-90912 List of figures List of figures Q2431-90912 Q2431-90912 List of figures Xii List of figures Q2431-90912 Q2431-90912 List of figures Xiv List of figures Q2431-90912 List of tables Xvi List of tables Q2431-90912 Q2431-90912 List of tables Xviii List of tables Q2431-90912 Contents Printer description Printer description Q2431-90912 Printer configurations Product configurations Model and serial numbers Sample model and serial number label Printer specifications Site requirements Physical dimensions Printer physical dimensions Printer weights Printer weights without print cartridgeOff HP LaserJet 4300 series General specifications Description HP LaserJetCircuit requirements HP LaserJet 4200 series Acoustic ratings Paper specifications Purchasing a large quantity Supported sizes and weights of media B5 ISO Tray 1 Media specifications Duplex accessory media specifications Size Dimensions Weight Envelope feeder accessory Size Dimensions Stacker and stapler/stacker do not support card stock Supported types of media Guidelines for using paperSymptom Problem with paper Solution Submenu on Paper weight equivalence table Paper weight equivalents Labels Overhead transparencies Envelopes with double-side-seams EnvelopesEnvelope construction Envelopes with adhesive strips or flaps Envelope storage Card stock and heavy paperEnvelope margins Card stock construction Types of print media to avoid Laser safety Safety informationPrint cartridge and toner safety Laser safety statement U.S EMI statement Korea Vcci statement Japan Varoitus Laser statement FinlandLuokan 1 laserlaite Klass 1 Laser Apparat Varning Regulatory information FCC regulations Environmental product stewardship program Material restrictions Material Safety Data Sheet For more informationReturns Non-U.S. returns Declaration of Conformity Declarations of ConformityCanadian DOC regulations Service approach Ordering information Related documentation and software Service approachParts and supplies Support HP-authorized resellers and support HP service agreementsHP PartnerCare Worldwide service and support offices Africa and Middle East Recycling print cartridges Print-cartridge informationRefilled print cartridges Returns Hewlett-Packard limited warranty statement HP Product Duration of Warranty Limited warranty for toner cartridge life Service approach Q2431-90912 Printer operation Control-panel lights Using the control panelControl-panel layout Control-panel lights Light Indication Control-panel buttons Using the printer Help systemControl-panel buttons Button Function Settings and defaults Settings and defaultsSetting the control-panel display language Setting or default Explanation Printing and changing control-panel menus Control-panel menusOverview To print a control-panel menu map To change a control-panel setting Retrieve job menu Values Explanation Retrieve Job menuInformation menu Information menu Explanation Paper Handling menu Paper-handling menu Values Explanation Tray N Type ANY Printing submenu Configure Device menuPrinting submenu Values Explanation PCL sub-submenu a submenu in the printing submenu PCL submenu Values Explanation Print Quality submenu Print quality submenu Values Explanation 321 and Blurred print on page 321 . HP Lines on page 321 and Blurred print on Use the Resolution Enhancement technology REt System Setup submenu System setup submenu Values Explanation Auto Continue to on Stapler/stacker submenu Stapler stacker submenu Values Explanation Submenu O submenu Values Explanation Printer maintenance Cleaning the printer and accessories Location of the transfer roller do not touch Cleaning the fuser Cleaning the printer Component Cleaning method/notes Running the cleaning page manually To run the cleaning page manually Cleaning spilled toner Running the cleaning page automaticallyTo run the cleaning page automatically Resetting the maintenance-kit counter Performing preventative maintenanceMaintenance kit part numbers Part name Part number Expected life of components Removing and replacing the stapler unit Maintaining the stapler unitTo remove and replace the stapler unit Replacing the stapler unit 2 Loading staples To load staples Downloading a remote firmware update Printer maintenance Q2431-90912 Theory of operation Theory of operation Q2431-90912 Basic operation of the printer IntroductionPrinter operating sequence Laser/scanner system overview Control system overviewPickup and feed system overview Image formation system overview General descriptions DC controller PCA Motor Motor and fan controlFan Power supply Fuser-control circuit Fuser over-temperature protection Fuser over-temperature protection circuit block diagram High-voltage circuit block diagram High-voltage circuit Low-voltage circuit block diagram Low-voltage circuit Cartridge detection Overcurrent/overvoltage protectionToner detection Cartridge memory Laser/scanner assembly Laser/scanner assembly Laser control circuit block diagram Laser/scanner control Printer paper pickup and feed block diagram Paper pickup system Paper pickup/feed and fuser/delivery block diagram Paper pickup and feed block Tray 1 timing diagrams Printing from tray Tray 1 pickup Q2431-90912 Theory of operation Tray 2 timing diagrams No cassette installed Tray 2, 500-, 1,500-sheet feeder media size detection Lifter-driver operation Multiple feed prevention Media skew prevention Correcting skewed media pages Fixing/delivery block Printer jam detection Printer pickup delay jam from trayPrinter pickup stationary jam Printer delivery wrap jam when feeding non-regular media Printer delivery wrap jam when feeding regular mediaPrinter delivery delay jam Printer door open jam Printer residual media jam Printing from the 500-sheet feeder Sheet feeder pickup and feeding Sheet feeder pickup and feed diagram 500-sheet feeder I/O block diagram Printing from the 1,500-sheet feeder 500-sheet feeder pickup and feed diagram Sheet feeder lifting mechanism 500-sheet feeder lifting mechanism Envelope feeder I/O block diagram Envelope feeder Envelope feeder pickup and feed diagram Envelope feeder pickup and feeding Envelope feeder jam detection Envelope feeder pickup delay jamEnvelope feeder pickup stationary jam Duplexer I/O block diagram Duplexer Duplexer pickup and reversing diagram Reversing and duplexer pickup Duplexer jam detection Stacker and stapler/stacker Stacker and stapler/stacker paper path Power-on sequence for the stacker and stapler/stacker Stacker driver PCA block diagram Stacker Stacker components Component Purpose SwitchStacker feed and delivery Solenoid Stacker feed stationary jam Stacker jam detectionStacker feed jam Stacker residual media jam Stapler/stacker driver PCA block diagram Stapler/stacker Stapler/stacker feed and delivery Stapler/stacker components Component Purpose Stapler/stacker motors, solenoids, and sensors block diagram Staple mode feed and delivery Staple mode feed and delivery diagram 1 Staple mode feed and delivery diagram 2 Staple mode feed and delivery diagram 4 Staple mode feed and delivery diagram 6 Stapler unit I/O block diagram Stapler unit Stapler unit Stapler unit operationFront view Staple operation 2 Staple operation 3 Stack mode feed and delivery Staple level detection Stapler/stacker feed stationary jam Stapler/stacker jam detectionStapler/stacker feed jam Stapler/stacker delivery jam Image-formation system Image formation block diagram Electrostatic latent-image formation Primary charging Writing the image Writing the image to the photosensitive drum Developing the image Developing the image Transferring the image Transferring the image Fusing the image Q2431-90912 Theory of operation Print cartridge memory chip Print cartridge memory chip Resolution Enhancement technology PowerSaveFormatter system EconoMode Input/output Printer memory PJL overview Control panel Removing and replacing parts Page After completing service Removal and replacement strategyBefore performing service Required tools Phillips machine screw with captive star washer Screws used in the printerScrew measurement guide Phillips screw with self-tapping threads Access to the transfer assembly and to the registration Parts-removal tree Printer input tray, and cabinet wheel locks Location of printer, input trays, and cabinet wheel locks Print cartridge User-replaceable partsPrint cartridge 1 Transfer roller Open the control-panel door and tray Tray 1 pickup roller Tray 1 pickup roller 1 Tray 1 separation pad Tray 1 separation pad Tray 2 feed rollers Tray 2 feed rollers 2 Tray 2 feed rollers 3 Accessory covers and the tray 2 extension door Covers, tray 1, and the rear output bin Accessory covers 3 Formatter cover Top cover Top cover 1 Top cover 3 Top cover 4 Top cover 5 Right-side cover Right-side cover 1 Right-side cover 3 Left-side cover Left-side cover 1 Tray 1 1 TraySlide the tray 1 door to the right and remove it Tray 1 3 Slide the paper guide to the left to remove it Tray 1 5Tray 1 6 Rear output bin Rear output bin 1 Control-panel display Control-panel overlay Control-panel assembly Control-panel assembly 1 Control-panel assembly 2 Control-panel assembly 4 Firmware Dimm Internal componentsFirmware Dimm Formatter assembly Formatter assembly Fuser Output delivery assembly Output delivery assembly rear view, formatter side 1 Output delivery assembly 2 Duplexing pendulum assembly Duplexing pendulum assembly 1 o Duplexing pendulum assembly 2 Tray 2 media-size sensor Tray 2 media-size sensor 1 Main cooling fan left side Main cooling fan 1 Main cooling fan 3 Cooling fan right side HP LaserJet 4300 series printer only Cooling fan HP LaserJet 4300 series only 1 Cooling fan HP LaserJet 4300 series only 3 Cooling fan HP LaserJet 4300 series only 5 Laser/scanner 1 Laser/scanner 3 Laser/scanner 4 Print-cartridge motor HP LaserJet 4300 series printer only Print-cartridge motor HP LaserJet 4300 series only 1 Print-cartridge motor HP Laserjet 4300 series only 1 Main motor 1 Main motorRemove it Main motor 3 Tray 2 lifter-drive assembly Tray 2 lifter-drive assembly 1 Tray 2 lifter-drive assembly 2 DC controller PCA 1 DC controller PCA 2 Paper-pickup assembly Paper-pickup assembly 1 Paper-pickup assembly 3 Paper-pickup assembly 5 Main drive assembly Main drive assembly 1 Main drive assembly 2 Power supply right side 1 Power supply 2 Power supply tray 2 cavity 4 Paper-feed belt assembly Paper-feed belt assembly 1 Tray 1 paper-pickup assembly Tray 1 pickup assembly 1 Tray 1 pickup assembly 2 Tray 1 pickup assembly 4 Paper feed assembly Paper feed assembly 1 Paper-feed assembly 2 Reinstall note Hint Registration assembly Registration assembly 1 Registration assembly 3 Transfer assembly Transfer assembly 1 Transfer assembly left rear view 2 Transfer assembly 3 Transfer assembly 5 Sheet feed rollers AccessoriesSheet feeder assembly Sheet feeder right-side cover Sheet feeder right-side cover 2 Sheet feeder right-side cover 4 Sheet feeder control PCA Sheet feeder control PCA Sheet feeder media-size sensor Sheet feeder media-size sensor 1 Sheet feeder lifter-drive assembly Sheet feeder lifter-drive assembly 1 Sheet feeder paper-pickup drive assembly Sheet feeder paper-pickup drive assembly 1 Sheet feeder paper-pickup drive assembly 3 Sheet feeder paper-pickup drive assembly 5 Sheet feeder paper-pickup drive assembly 7 Sheet feeder feed rollers Sheet feeder separation roller Sheet feeder door 500-sheet feeder door 1 Sheet feeder door 3 Sheet feeder rear cover 500-sheet feeder rear cover 1 500-sheet feeder right-side cover 1 500-sheet feeder right-side cover 3 500-sheet feeder control PCA 1 500-sheet feeder media-size sensor 500-sheet feeder lifter-drive assembly 1 500-sheet feeder lifter-drive assembly 2 500-sheet feeder lifter-drive assembly 4 500-sheet feeder paper-pickup drive assembly Removing and replacing parts Q2431-90912 Troubleshooting Troubleshooting Q2431-90912 Q2431-90912 Troubleshooting Introduction Troubleshooting process Initial troubleshooting checklist Initial troubleshooting checklist Miscellaneous Troubleshooting flowchart Troubleshooting flowchart 1 Troubleshooting flowchart 2 Power-on checks Overview Power-on defect or blank display Problem Action Power-on defect or blank display Troubleshooting tools Information pages Menu map Sample menu map Configuration Configuration Supplies status Supplies status Gaining access to the embedded Web server Embedded Web server Information tab Settings tabNetworking tab Printer Status and Alerts software Other links To select status messages To view status messages and information Resets submenu Values Explanation Using control-panel menusResets submenu Information see System Setup submenu on Diagnostics menu Diagnostics menu Values Explanation Service menu service PIN codes For the HP LaserJet 4300 product Restoring the Service ID Service IDConverting the Service ID to an actual date To perform a cold reset Printer resets and power-on modesCold reset Nvram initialization To initialize the hard disk Power-on bypassHard-disk initialization Skip disk load Self test Engine test Test pagesFormatter test Communications checks Interface troubleshootingEIO troubleshooting Computer direct connect parallel test Jetdirect Jetdirect Critical-error messages Display-message troubleshootingError messages Status messages Alphabetical printer messages Message Description Action Alphabetical printer messagesSee DC controller PCA on Top cover is open or the top Press the H ELP Button for Dimm on Firmware Dimm on See Power supply on See Configuration page onSwitches and sensors on 336 , 500 -sheet feeder Fuser on Configuration page onSee Fuser on Sheet feeder media Stacker or stapler/stacker LED Blinks in amberOn page 241 to see if Size detection on Printer has detected that an If the print cartridge appears LED blinks in amber Stacker or stapler/stackerStacker or stapler/stacker LED See Firmware Dimm on Power supply on Control PCA on Sheet feederSee 1,500-sheet feeder Stapler/stacker LED is Error applies to the stapler/stackerAmber this error applies to Only On page 340, or Tray was installed with Use the control panel to Configuration of tray XX. The tray Press the S Elect Select the Paper Handling Numerical printer messages Message Description Action Numerical printer messagesCartridge on See Paper-path See Printer switches Install the paper-feedAssembly sensor flag on Sheet feeder switches Paper-feed assembly sensor Printer switchesCorrectly install Location of printer switches See Location of printer 336 and Fuser on Removing and replacing JAM in Output Device Functions to OFF Tray 2 feed rollers on Description Drivers and Software . Check Replace the Dimm or Scanner assembly on ZZ Error Number Formatter assembly on Cartridge fan error F2 Main fan error F1 DC controller Air temperature sensorPower supply Sensor. See Main cooling Or 59.4 EP Motor failure 59.00, 59.10, 59.20 MotorLJ 4300 only Print-cartridge motor Assembly. See Tray 2 lifterFeeder lifter-drive assembly On page 209 or 1,500-sheet 60.4 Is off Amber Settings and defaults onIs continuously illuminated Stapler unit on Initialize Nvram on Initialize the hard disk on Critical hardware error has Turn the printer off and then Paper-path troubleshooting Jam locations Paper-jam recovery To disable the paper-jam recovery Common causes of paper jams Cause Solution Avoiding paper jams Persistent jams Basic troubleshooting for persistent jamsData collection General paper-path troubleshooting Paper-path checklist Paper-path test To perform a paper- test Tray 1 paper-pickup assembly on Causes of tray 1 jams SolutionCauses of tray 2 jams Solution Drive assembly on page 179 and/or Printer Causes of tray 3 and or tray 4 jams Solution Jams in tray 3 and/or tray Drive assembly on Causes of paper-path jams SolutionCauses of duplex path jams Solution Jams in the paper path Cause Solution Media transport problemsCauses for multiple pages feeding Solution Multiple pages feed Registration assembly on Causes for skewed paper SolutionPaper is skewed Image-formation troubleshooting Print quality problems associated with media Print quality problems associated with jams Print quality problems associated with the environmentOverhead transparency defects Image defects Does the problem repeat on the page?HP paper specification Image quality Check the print cartridge EconoMode Half self-test functional check Drum rotation functional check Image defect tables Print quality image defects Print quality image defects Light print partial Possible cause Recommended actions Light print entire Possible cause Recommended action Specks or dots Possible cause Recommended action Dots in the paper path direction Cartridge Wrong toner density setting Might cause problems if the paper isHave this problem because they are not Wrong fuser setting for media type Horizontal lines opposite the paper path direction Grey background Possible cause Recommended actions Repeating defects and repeating images Distorted images Curl or wave Possible cause Recommended actions Skew Possible cause Recommended actionsCreases Possible cause Recommended actions White lines opposite the paper path Scattered lines Possible cause Recommended actions Line detail setting is turned offWhite spots on black Possible cause Recommended actions Blurred print Possible cause Recommended actions Replace the laser/scanner assembly. See Laser/scanner Black Blank or white Possible cause Recommended actions Dark print Repetitive defects troubleshooting Repetitive defect ruler Troubleshooting the stacker and the stapler/stacker Initial checks Stacker paper path test Jam errorsStacker and stapler/stacker paper path Delivery area Printer connection area Stapler/stacker paper path test Damaged Q2431-90912 Troubleshooting Malfunction errors Paper transport errorsPaper transport error troubleshooting Component errors Printer component locations Main printer parts Location of main printer parts 2 Location of main printer parts 3 Location of main printer parts 4 Printer switches and sensors Location of printer switches and sensors Printer motors and fans Location of printer motors and fans Printer PCAs Location of printer PCAs Accessory component locations Sheet feeder main parts Sheet feeder switches, sensors, solenoids, and PCAs Location of 1,500-sheet paper feeder main parts 1 Location of 1,500-sheet paper feeder main parts 2 Sheet feeder switches, sensors, solenoids, and PCAs Stapler/stacker stapler assembly Location of the stapler/stacker stapler unit Stacker and stapler/stacker switches and sensors Stacker and stapler/stacker motors and solenoids Stacker and stapler/stacker PCAs Location of the stacker and stapler/stacker PCAs Printer and accessory wiring diagrams HP LaserJet 4200 wiring diagram HP LaserJet 4300 wiring diagram Sheet feeder wiring diagram 500-sheet feeder wiring diagram Duplex accessory wiring diagram Envelope feeder accessory wiring diagram Stacker accessory wiring diagram Stapler/stacker accessory wiring diagram DC controller block diagram DC controller top General timing diagrams HP LaserJet 4200 general timing diagram HP LaserJet 4300 general timing diagram Stapler/stacker timing diagram Troubleshooting Q2431-90912 Parts and diagrams Ordering parts, supplies, and getting support Ordering information HP-authorized resellers and support Accessories and supplies Memory, fonts, and mass storage Part number Exchange number Cables and interfaces Part number Exchange number Printer maintenance kit Part number Exchange number How to use the parts lists and diagrams Documentation Part number Description or use Parts diagrams and lists External covers and panels External covers and panels Part number Description Reference Main assemblies 1 Main assemblies 1 Part number Description Reference Main assemblies 2 Main assemblies 2 Part number Description Reference Main assemblies 3 Main assemblies 3 Part number Description Reference Right-side assemblies Part number Description Reference 110-127v 220-240v Main drive assembly Part number Description Reference Paper-pickup assembly Part number Description Reference RM1-0002-000CN Duplexing pendulum assembly RM1-0033-000CN Lifter-drive assembly, tray Paper pickup assembly Part number Description Reference Paper-feed assembly Part number Description Reference Registration assembly Part number Description Reference Tray 1 assembly Part number Description Reference Output delivery assembly Part number Description Reference Transfer assembly Transfer assembly Part number Description Reference Fuser Parts and diagrams Q2431-90912 Fuser Part number Description Reference Parts and diagrams Q2431-90912 Q2431-90912 Parts and diagrams Sheet feeder main assemblies 2 Q2431-90912 Parts and diagrams RM1-0056-000CN Paper-pickup assembly 500-sheet feeder RM1-0208-000CN Lifter-driver assembly 500-sheet feeder Sheet tray Sheet tray Part number Description Reference Q2431-90912 Parts and diagrams 500-sheet feeder main assemblies Paper size sensing assembly outside, 1,500-sheet feeder Parts and diagrams Q2431-90912 RM1-0287-000CN Lifter-drive assembly, 1,500-sheet feeder Parts and diagrams Q2431-90912 Q2431-90912 Parts and diagrams Parts and diagrams Q2431-90912 Alphabetical parts list Alphabetical pars list Part number Description Reference Alphabetical pars list Part number Description Reference Paper size sensing assembly outside, 1,500-sheet feeder Alphabetical pars list Part number Description Reference Numerical parts list Numerical pars list Part number Description Reference Numerical pars list Part number Description Reference Numerical pars list Part number Description Reference Paper size sensing assembly outside, 1,500-sheet feeder Index Index Q2431-90912 Cassettes. See trays CD-ROM, software Index Q2431-90912 EIO Index Q2431-90912 See also support troubleshooting Help button 36 LED PCA Q2431-90912 Index Index Q2431-90912 Q2431-90912 Index See also bins Q2431-90912 Index Index Q2431-90912 LED PCA TCP/IP See also trays See also messages troubleshooting problem areas Page Q2431-90912