HP 8000s manual Problem is print quality

Page 154

The problem is print quality

Symptom	Possible cause	Corrective measure

Parts of a printed image are missing even	The nozzle is clogged.	Wash the printheads. See How do I…
after printhead cleaning is performed		Clean ink system
repeatedly.

Poor print quality cannot be improved	The cap or wiper blade is stained.	Clean the cap and change the wiper
even when the cleaning is performed.		blade. See How do I maintain the printer

There is banding on new media	The printer requires calibration for the	Adjust the printer settings for the new
	new media.	media. See How do I calibrate my printer

There is banding on media that has been calibrated and did not give banding before.

If one of the following is true, try the corresponding solution and if banding has not disappeared, then go to the next possible cause and solution:

1.The file you are printing: a) is new

b) is not new

2.The print mode:

a)has changed

b)has not changed

3.Normal printhead recovery: a) did not improve banding b) improved banding

4.Strong printhead recovery: a) did not improve banding b) improved banding

Try one of the following solutions:

1.a) Try using a file that did not give banding. If banding does not disappear, then see the next possible cause.

b)Check that you are using the same print mode as before.

2.a) Try using the same print mode. If banding does not improve, then try a new roll of media. If you still see banding call HP support.

b)Try normal printhead recovery. If banding improves, repeat normal printhead recovery until no improvement is seen and banding is still present. Call HP support.

3.a) Print the NOZZLE PRINT pattern and check if there are any printhead nozzles not working. If some printheads are not working, try strong printhead recovery for the affected printheads.

4.a) Call HP support

b)Repeat normal printhead recovery until no improvement is seen and banding is still present. Call HP support.

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Chapter 9 The problem is print quality

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Contents HP Designjet 8000s Printer series Legal notices Table of contents How do I… printing topics Problem is… troubleshooting topics Tell me about media 177 Tell me about… printer specifications topics 219 Enww Introduction IntroductionUsing this guide Printers main componentsFront view Rear view HeatersPrinters front panel Introduction Safety precautions General warningsGeneral cautions Regular inspection and maintenance Handling precautionsPower supply PrinterIntroduction How do I… basic operation topics? System configuration connection exampleConnection procedure Connect to a computerHow do I… basic operation topics? How do I… basic operation topics? Turn the power on/off Turn on the printer How do I turn the power off How do I… basic operation topics? Check the firmware version How do I load/unload media Install a media roll in the printer How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media Paper Remove a media roll from the printer How do I load/unload media Replace a jammed media roll Load a cut sheetHow do I load/unload media Load a cut sheet How do I load/unload media How do I load/unload media Glossy Matte Banner Bltb Backlit How do I load/unload media Use the media edge guards Use the media cutter Use the media cutter How do I load/unload media Use the take-up reel Set the take-up reel winding direction Define the take-up reel winding mode Load media on to the take-up reel How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media How do I load/unload media Take-up reel horizontal alignment How do I load/unload media How do I load/unload media How do I… printing topics Perform a manual form feed/rewindUse manual nesting How do I… printing topicsIncrease/reduce pressure on media How do I… printing topics How do I… ink topics Replace an ink cartridgeChange the printhead height How do I… ink topics How do I… ink topics Tighten the printhead carriage fixing screws How do I… ink topics Regular maintenance guide How do I maintain the printerHow do I maintain the printer Daily maintenance Capping unit cleaning How do I maintain the printer How do I maintain the printer How do I maintain the printer How do I maintain the printer How do I maintain the printer Wiper liquid bottle replacement Wiper liquid bottle replacement How do I maintain the printer Insert the wiper liquid dispenser cap How do I maintain the printer How do I maintain the printer Wiper sponge replacement Wiper sponge replacement How do I maintain the printer How do I maintain the printer How do I maintain the printer How do I maintain the printer Wiper blade replacement Wiper blade replacement Open the right maintenance cover How do I maintain the printer How do I maintain the printer How do I maintain the printer Clean ink system Prepare for extended power down two to four weeks Ink system storage Charge the ink system Clean the exterior of the printer Clean the carriage baseClean the carriage base Clean the front cover and media feed Clean the platen How do I maintain the printer Waste ink bottle replacement How do I maintain the printer Waste ink bottle replacement 105 Normal printhead recovery Normal printhead recovery 107 Print the nozzle print pattern Print the nozzle print pattern 109 110 How do I maintain the printer How do I get the best image quality Test the image quality Interpreting the print quality Manage media types Copy a media type to create a new oneCreate a new media type Modify media type settings Delete a media type How do I calibrate my printer Calibrate media advanceHow do I calibrate my printer 119 How do I get the best image quality Printhead position adjustment How do I get the best image quality How do I calibrate my printer 123 Printhead nozzle position adjustment Line sensor position adjustment Back feed adjustment print126 How do I get the best image quality Adjust heater and print mode settings PanelParameters Adjust heater and print mode settings 129 130 How do I get the best image quality Problem is… troubleshooting topics Problem is… checklist Symptom Items to be checked Corrective measuresProblem is… checklist 133 Printhead crash Load media again See How do I load/unload media Ink cartridge is near expiration date Ink cartridge is not installedInk cartridge is not detected Ink cartridge has passed its expiration dateAn error message Service errorsOperator error messages Service error messagesMedia Other messages Problem is an abnormal sound 142 Problem is… troubleshooting topics Problem is print quality This section explains how to solve print quality problemsProblem is print quality Tell me about… basic knowledge topics Tell me about operating conditions Installation spaceEnvironmental conditions Tell me about the power supply PowerExhaust attachment Tell me about front panel messages and printer stateHP Designjet High Speed Dryer Messages on the front panelOnline state print mode display Offline menu mode display Shutdown state display 152 Tell me about… basic knowledge topics Storing media Tell me about mediaDisposing of media Other precautions Using mediaHandling prints Tell me about the ink system Ink CartridgesTell me about the ink system Ink cartridge storage and disposal Replacing an ink cartridgeHP 780 Waste Ink Bottle HP Cleaning Swabs HP Cap Cleaning Kit with RollerHP 780 Wiper Cleaning Liquid Precautions for handling the waste ink bottleHP Ink System Cleaning Kit HP Ink System Storage Kit160 Tell me about the ink system Tell me about waste management Disposing of wasteTell me about waste management General recommendations 164 Tell me about waste management Tell me about… menus Menu operations Menu structureTo define a value Character list Media menu INK menu & messagesReplacing an empty ink cartridge Media REG menu Selecting a media type number Select Media Setting a media type name Rename MediaMedia advance value Media ADV Value Print direction setting Print Direction Print mode setting Print ModeDry time value DRY Time Value Flatten time Flatten Time Use media edge guard USE Edge GuardMedia advance mode Media ADV Mode Take-up reel mode TUR ModeLeading edge mode Leading Edge Vacuum level setting Vacuum LevelTell me about… menus Printhead height setting PH Height VAL Color stripe setting Color StripeBidirectional print position adjustment Bidir DEF Value Printhead cleaning mode PH Cleaning Media back feed adjustment Back Adjust VAL Media advance preference Advance PrefHeater preference Heater Pref Print mode preference Print Mode PrefPrinthead rest period PH Rest Period Delete a media type Delete Media Printhead temperature rest PH Temp RestSet remaining media SET Remaining Media Copy a media type Copy MediaDefault values for media types Media advance calibrationMedia advance calibration print Parameters Rough or DetailPH. Main menu Media back feed adjustment valueCap cleaning CAP Cleaning Ink system optimization INK SYS OPTReplace wiper sponge Replace Wipe Sponge Replace wiper cleaning liquid Replace Wipe LiquidReplace wiper blade Replace Wiper Blade Washing the printheads Wash PrintheadsReplace Printhead Replace Printhead PH. REC menuPrinthead height PH Height ADJ Reseat Printhead Reseat PrintheadRewind option Configuration print Config PrintFeed option Printer menuAdjustment pattern prints Test Prints Adjust menuError log information print Error LOG Print History print History PrintBidirectional print position adjustment Bidir DEF Printhead position adjustment #PH to PH VALBidirectional print position fine adjustment Bidir Fine Line sensor top position LS ADJ TOP VAL Setup menuNozzle position Nozzle POS VAL Line sensor side position LS ADJ Side VALLanguage for front panel Language Temperature units Temperature UnitsBoot version display Boot Version Time Zone Time Zone GMT+ICB board version display Carriage PCA Firmware version display Printer FW VERMain PCA version display Main PCA VER Asic version display Asic VERHeater delay time Heater Delay Time Factory default setting Factory DefaultPrinter firmware upgrade Printer FW Upgrade Heater menuHeater standby time Heater Standby Time Tell me about… heater topics HeatersHeater temperature settings Heater preset temperature by mediumFlow of heater temperature setting Temperature control Maintaining the preset temperatureHeater error messages 200 Tell me about… heater topics Tell me about… printer specifications topics Specifications Specification / FunctionEcological specifications 204 Tell me about… printer specifications topics Tell me about… ordering supplies and accessories topics Ordering supplies Ordering mediaOrdering accessories HP Media208 Tell me about… ordering supplies and accessories topics Tell me about… getting help topics HP Customer CareHP Designjet Online Extent of HP Limited Warranty Legal information212 Legal information Local law Regulatory noticesLimitations of liability Regulatory Model NumberNormes de sécurité Canada FCC statements U.S.AShielded cables DOC statement CanadaRegulatory notices 215 Declares that the product Conforms to the following product specificationsAdditional information Local contacts for regulatory topics only 218 Legal information Accessories IndexEnww

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