HP 400 manual Thermal Inkjet II Technology Operation and Usage

Page 56

Thermal Inkjet II Technology

The HP DeskJet 400 printer uses Thermal InkJet II (TIJ II) technology. This technology is based on a disposable print cartridge which propels ink out of 48nozzles. The basic principle of TIJ II is to apply heat to a tiny measure of ink until it expands and is propelled through a nozzle.

The ﬁrst step in the process is to ﬁll a small reservoir, known as the ﬁring chamber, with ink. The next step is to heat the ink with a thin-ﬁlm resistor layered above the ﬁring chamber. As the ink heats up, it expands to form a bubble. The bubble continues to expand and ﬁnally bursts. At the climactic instant when the bubble bursts, the ink is forced through the nozzle located below the ﬁring chamber and out onto the paper.

This process is repeated up to 5,000 times per second and creates residual heat in the resistor. A layer of silicon is placed above the resistor to cool it by transferring the residual heat away.

Cooling Layer of Silicon

Heated Thin-Film Resistor

Firing Chamber

Nozzle

Propelled Ink Droplet

Figure 2-3. Thermal Inkjet II Technology

Operation and Usage 3-11

Image 56

Contents HP DeskJet 400 Printer Technical Support Solutions Guide HP DeskJet 400 Printer Technical Support Solutions Guide Page Iii Publication HistoryTrademark Credits Conventions About This Guide Page Contents Printer Drivers Contents-2Operation and Usage Problem Resolution Contents-3Chapter Service and Support Information HP PCL Printer Commands and Control CodesContents-4 Appendix aChapter Installation and Configuration List of Tables-1Chapter Problem Resolution Chapter Operation and UsageChapter Printer Driver Information List of Tables-2Chapter Contents Product InformationModel Numbers and Product Positioning Support ToolsProduct Positioning HP DeskJet 400 PrinterConﬁdence in software compatibility Features and BeneﬁtsHP DeskJet 400 Printer Features and Beneﬁts Presentation quality color output capability using DriverTransparency support black and color HP Premium PaperViews HP DeskJet 400 PrinterIntercon Printer OptionsHP DeskJet 400 Printer Options Region Plug Type Power Adapter Part NumbersPower Adapters Chile Latin America 9100-5346 Supplies and Accessories HP DeskJet 400 Printer Supplies and Accessories Part NumberUser Documentation HP DeskJetInternal Fonts Internal Portrait FontsPortrait Fonts Internal Landscape FontsCategory Speciﬁcation SpeciﬁcationsPerformance Speciﬁcations 20,000 hours Mechanism life 25,000 pages 10. Reliability Speciﬁcations CategoryPrinter usage 13. Physical Speciﬁcations Approximate Printer with the paper tray closedWidth Height14. Packaging Dimensions Speciﬁcations Length Width Height15. Environmental Speciﬁcations Category 46 dBAEMI Certiﬁcation 16. Product Safety SpeciﬁcationsSafety Certiﬁcation 17. Paper Handling Speciﬁcations Media size Letter Mm 297 mm Legal Executive 25 in .5Mm 257 mm US No envelope 12 in .5 DL envelope Mm 110 mmPrintable Area Portrait Orientation Printable Area Landscape Orientation Product Information18. Printable Area1,2 Portrait Mode Left Margin Right Margin19. Hewlett-Packard Print Cartridge Speciﬁcations Category Product Information Installation and Conﬁguration Installation and ConﬁgurationColor Kit Items IncludedCentronics Parallel Interface Cable Connecting Power to the Printer Connecting the Printer to a Power AdapterCentronics Parallel Interface Pinout Information DescriptionInstallation and Conﬁguration Mode LPT1 RETRY=R For DOS 5.0 and DOS 6, sendInstalling Windows Printer Drivers Installing the Printer Driver for Microsoft Windows UsersConﬁguration Options with the DJPMenu Conﬁguration Utility Setting up the PrinterConﬁguring the Printer Norway Country Defaults Available in DJPMenuCharacter Set Installation and Conﬁguration Operation and Usage Printer Buttons and Lights Loading MediaDescription of Printer Buttons and Lights Icon Button or Light DescriptionNormal Printing from the Paper Tray Or thick paper Invoke the print command from your computerManual Single Load Transparencies Into the paper trayPrinting on letterhead Printing on envelopes, labels orInstalling/Replacing a Print Cartridge Change Cartridge light will continue to blink Common Problems with Print Cartridges Maintaining Print Cartridges MaintenancePrint cartridge troubleshooting information Maintaining the Printer Print Cartridge TipsThermal Inkjet II Technology Thermal Inkjet II Technology Operation and UsageOperation and Usage Printer Drivers Windows Printer Drivers ChapterPrinter Driver Features and Capabilities Memory Free Disk SpaceSoftware CompatibilityCommon Windows Problems Solution Not install through the Control PanelPrinter Setup menu Printer wont print from WindowsIncreasing the Printing Speed Problem Resolution Troubleshooting Tools Overall Troubleshooting Self-Tests Printer Demo Page Printing Problems HP DeskJet 400 Printing Problems Probable Cause SolutionPrinter Light Indications Oops is defective Printer for replacement of the Oops ﬂagPath Print cartridge cradl e are in the home position right Solving Carriage Stall ConditionsTurn the printer off and then back on Problem Resolution Troubleshooting Paper Feed Operations Printer Settings in chapter Media loading from the paper traySheets into the in tray An empty in tray as a single stackClearing Paper Jams Close the printer door. Load paper and turn on the printerPrinter, return the printer for repair Obstructions blockPaper path Avoiding Print Skew Paper on top of paper already in the in trayLoad a stack of paper in the in tray. Use paper with Squareness that is within tolerance Left margin downPrint skew on If AB, use the equation A-B/CTroubleshooting Communication Problems Printer CommunicatesYes without the sharing Device?Cable Print Cartridge Troubleshooting Print CartridgesShort Print Cartridge Life Overusing the cleaning routine Container provided with the optional Color KitEstimate of the number of pages Actually printed was inaccurateIdentifying the Print Cartridge Expiration Date Replace the print cartridge. See tableExplanation Print Cartridge Life Speciﬁcations Age10. Print Cartridge Expired? Using the Print Cartridge Cleaning Routine Removing Crusted Ink from the Print Cartridge Nozzles Cleaning the Electrical Contacts Clearing Clogged Print Cartridge NozzlesTroubleshooting Print Quality Solving Black Print Quality ProblemsSolving Color Print Quality Problems 11. Solving Black Print Quality ProblemsBlack printing is fading Print cartridgeTry printing the sheet again using manual feed Quality in the Printer Setup dialog boxBox of the Printer Setup menu SolutionsOutput where you Cartridge and print Expected color Color fades onPrintouts have black Dialog boxPrintouts Missing Rows of Dots Printouts Missing DotsProblem Resolution Solution Implementation 13. Avoiding WaitbandingProblem Resolution Service and Support Information Service and Support InformationWarranty Information Service Support Contracts Non-U.S. Service Support ContractsHP Express Exchange Service HP Customer Return Repair ServiceReturning a Printer for Service U.SInclude the one relevant accessory Elsewhere in the WorldNot exhibit a print cartridge-related problem Obtaining Support Information Service and Support ResourcesObtaining Printer Drivers Resource Information Service Hours Support HP Customer Information CenterPostsales Information HP Audio TipsResource Information Service Support Items Available HP DistributionCenter HP CustomerPrinter Repair Feedback Information Media Advance/Eject ProblemsPrint Quality Problems Noise Problems Cosmetic ProblemsPrint Cartridge Problems Accessory ProblemsUndeﬁned Code and Miscellaneous HP DeskJet 400 Printer Repair Sheet HP PCL Printer Commands and Control Codes A-1 HP PCL Printer Command SummaryPrinter Control Commands Control Commands Paper Size †Font Selection Commands HP PCL Printer Commands and Control Codes A-3Secondary Font HP PCL Printer Commands and Control Codes A-5 Control CodesHP PCL Printer Commands and Control Codes Index Index-1Index-2 Index-3 Index-4 Index-5 Index-6 Index-7 Index-8 RAMIndex-9 Index-10

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