Horizontal lines across the image banding | HP T2500 instruction

4.Select the percentage of change from –100% to +100%. To correct light banding, decrease the percentage.

To correct dark banding, increase the percentage.

5.Press OK on the front panel, to save the value.

6.Wait until the front panel displays the status screen and reprint your print.

Return to default calibration

Returning to the default calibration sets all the corrections made by the paper advance calibration to zero. To return to the default paper advance calibration value, you must reset the calibration.

1.From the front panel, press , then , then Image quality maintenance > Paper advance calibration > Reset paper advance.

2.Wait until the front panel displays the operation has completed successfully.

Horizontal lines across the image (banding)

If your printed image suffers from added horizontal lines as shown (the color may vary):

186 Chapter 21 Troubleshooting print-quality issues

ENWW

Image 196

HP T2500 manual Horizontal lines across the image banding, Return to default calibration

Contents

Designjet T2500 eMultifunction Series Legal notices Table of contents Network configuration 103 121 136140 151 172 166182 201 200220 226 230236 239 247 250 Introduction Safety precautions Mains connectionPrinter operation Printer servicing Using this guide Use and maintenanceTroubleshooting HP Start-Up Kit Accessories, support and specifications Printer modelsGlossary Index Printer’s main features Printer’s main features Printer’s main components Front view Power switch Power socket Rear viewCommunication ports Printer’s main components Front panel Home screen dynamic icons Left and right fixed iconsFollowing items are displayed only on the home screen Sleep mode Information screenTo reach the information screen, press on the home screen Information screen dynamic icons Printer software Web ServicesPrinter software Turn the printer on and off HP Designjet ePrint & Share Printer’s internal prints To turn it back on, use the power switch at the rearPrinter’s internal prints Enww Installing the software Using IPv6 Network configurationConnect the printer to your network Using IPSec Printer software installationConnect a computer to the printer by network Windows Your printer supports IPSec Uninstall the printer software Windows Open the Mac OS X HP Designjet InstallerConnect a computer to the printer by network Mac OS Bonjour connection TCP/IP connection Click Continue Uninstall the printer software Mac OS Setting up the printer Set up your Web-connected printer Web Services manual configurationConfigure the printer’s Internet connection Introduction Configure firmware updates Configure a scan-to-network or scan-to-FTP folder Print quality Choose between Best, Normal, and FastScan to network folder Scan to FTP folder Configure a scan-to-network or scan-to-FTP folder Example Create a scan-to-network folder under Windows Check the Share this folder box Example Create a scan-to-network folder under Mac OS Enww Roll switching options Preferences Paper options Roll switching optionsPaper suitability options Paper mismatch action Turn nesting on and off Nest options Wait time Turn usage information on and off Turn e-mail notifications on and offTurn alerts on and off Each case, you must set the following options Control access to the printer Front-panel security settingsTo access alert settings under Windows To access alert settings under Mac OS Disable your HP ePrint Center connection Embedded Web Server security settingsRequire account ID Set Windows driver preferences Network configuration Tools for preconfiguration Preconfigure network settings if requiredVerify correct operation Troubleshooting Add the printer to your network system Reset network parameters Link configuration methods Enable or disable network protocols Control network protocolsFront-panel menu items Control network protocols Dhcp Renew Front-panel menu items DHCPV6 Policy Embedded services Ipsec Supported network protocols TCP/IPv4 Personalizing the printer Personalizing the printer Access the Embedded Web Server Access the HP UtilityChange the language of the front-panel display Change the sleep mode setting Change the auto-off settingChange the loudspeaker volume Change the language of the HP Utility Change the front-panel display brightness Configure network settingsChange the units of measurement Change the graphic language setting Network connectivity Gigabit Ethernet Modify configurationManage printer security Select one of the following options Change your printer’s email address Paper handling Paper handling General advice General adviceLoad a roll onto the spindle Open the roll cover Enww Load a roll onto the spindle Load a roll into the printer Load a roll into the printer Is not in the list on Quick procedure with paper on the roll Front panel procedure with paper on the rollUnload a roll You may need to open the roll cover Load a single sheet Stacker Manual printing with the stacker open Enww Basket Paper presetsView information about the paper Printing paper info Move the paperMaintain paper Printing preferences Paper options Printing paper info Press , then , then Setup Print retrieval Retrieval time Change the drying timeChange the retrieval time Turn the automatic cutter on and off Feed and cut the paper Uses of a multiroll printer Working with two rollsHow the printer allocates jobs to paper rolls Roll switching policy doesnt matter Economically on Printing Print from a USB flash drive Then , then Print from USB preferences Print from a computer using a printer driver Advanced print settings Select paper size Select print qualityPaper size can be specified in the following ways Use the Windows printer driver Advanced print settingsUse Windows forms Select margins options Print on loaded paperUse the Mac OS X printer driver Use the Embedded Web Server Rescale a print Change the treatment of overlapping lines Preview a print Print a draft High-quality printing You can specify high-quality printing in the following ways Print with no margins Print in gray shadesPrint with crop lines Use paper economically Nest jobs to save roll paper When does the printer try to nest pages? Nesting on Paper saved by nesting Use ink economically Roll protectionUnattended printing/overnight printing Paper options Roll protection 1Recommended settings for unattended printing Print from iOS with AirPrint Print from iOS with AirPrint Paper types suitable for scanning ScanningScan to file Scan to file Then Scan preferences Preferences De-skew Off Copying Then Copy preferences Web-connected printing Web-connected printing Enable Cloud printing for your printer Print through the Cloud with HP Designjet ePrint & Share Print by email Print from a smartphone or tablet Enww View and print from the HP Designjet ePrint & Share website Enww Press the HP ePrint & Share icon Scan to an email address Sign in using your registered email address and password Press the Scan icon on the front panels home screen Enww Enww Share files in your Online Print History Web-connected printing Job queue management 103 Select when to print a job in the queue Job queue in the front panelJob queue Job preview Pause a job in the queue Reprint a job from the queueSave a scanned job to another destination Delete a job from the queue Job queue in the Embedded Web Server or HP Utility Reprint or copy a job in the queue Job status messages Printing Drying Cutting paper Ejecting Canceled The job has been canceled by the printer Canceled by userPrinted Empty job The job does not contain anything to print Color management Color management Summary of the color management process How colors are representedColor calibration Color management from printer drivers Color management options Printer emulation Color adjustment options You can adjust the colors of your print as follows You can adjust the gray balance of your print under Windows Printing in grayscale Color management from printer drivers PostScript printers HP Professional Pantone Emulation Color emulation Cmyk color emulation Color management from the Embedded Web Server Submit Job options Color management from the front panel Printing preferences Color options Color management and the scanner Practical printing examples 121 Print from Adobe Acrobat Print from Adobe Acrobat Print from Autodesk AutoCAD Print from Autodesk AutoCAD Enww Using clip contents by margins Using printer emulationPrint from Adobe Photoshop Enww Using PowerPoint Print and scale from Microsoft Office Enww Using Project Select File Page Setup Print Practical printing examples Using Excel Enww Enww Retrieving printer usage information Retrieving printer usage information Check usage statistics Get printer accounting informationCheck usage statistics for a job Set Send accounting files to Enabled Request accounting data by emailAccounting statistics with the HP Utility Accounting statistics with the Embedded Web Server Request accounting data by email Handling ink cartridges and printhead Handling ink cartridges and printhead HP Utility procedures About the ink cartridgesCheck the ink cartridges status Remove an ink cartridge Insert an ink cartridge Insert an ink cartridge About the printhead Safe modeCheck the printhead status Status, see Front-panel error messages on Remove the printhead Enww Enww Insert the printhead Lift the printhead out of the carriage Insert the printhead Storage of anonymous usage information Printer maintenance 151 Clean the exterior of the printer Check printer statusMaintain the ink cartridges Move or store the printer Update the firmware Automatic firmware updatesManual firmware updates Important notes Printer maintenance kits Update the softwareSecure File Erase Disk Wipe Security Scanner maintenance Scanner maintenance Clean the scanner’s glass plate Enww Clean the pressure rollers and the feed rollers Replace the scanner’s glass plate Replace the scanner’s glass plate Enww Enww Enww To calibrate the scanner Calibrate the scannerIf calibration fails Supplies and accessories Supplies and accessories How to order supplies and accessories Order ink suppliesOrder paper Following ink supplies can be ordered for your printer Roll paper 3Roll paper Introduction to the accessories Order accessoriesPostScript Upgrade Spindle Following accessories can be ordered for your printer Spindle Adaptor Kit Troubleshooting paper issues Troubleshooting paper issues Paper loading error messages Paper cannot be loaded successfullyUnsuccessful roll load Unsuccessful sheet load Black ink is easily removed when touched Paper type is not in the listTransparent or translucent film Photo paper Printer printed on the wrong paper type When is a job put on hold for paper?An on hold for paper message Paper has jammed in the print platen Paper has jammed in the print platen Enww Enww Paper has jammed in the stacker Printer displays out of paper when paper is available Printer reports unexpectedly that the stacker is fullPrints do not fall neatly into the basket Print remains in the printer after printing has completed Troubleshooting print-quality issues Troubleshooting print-quality issues 183 When you have any print-quality problem Print-quality troubleshooting wizardRecalibrate the paper advance Recalibrating the paper advance procedure Return to default calibration Horizontal lines across the image banding Lines are too thick, too thin or missing Lines appear stepped or jagged Lines print double or in the wrong colors Lines are discontinuous Lines are blurred Line lengths are inaccurate Whole image is blurry or grainy This problem can occur for several different reasons Paper is not flatPrint is scuffed or scratched Ink marks on the paper Black ink comes off when you touch the print Other smears on the paper Edges of objects are stepped or not sharp Edges of objects are darker than expectedHorizontal lines at the end of a cut sheet print Vertical bands of different colors White spots on the print Colors are inaccurate Image is incomplete clipped at the bottom Colors are fadingImage is clipped Image Diagnostics Print Some objects are missing from the printed image Image Diagnostics Print Corrective action If you still have a problemHere is an example of the same printhead in a bad state If you still have a problem Cannot access the network folder Troubleshooting scanner issuesScanning to file is slow Troubleshooting scan-quality issues 201 Troubleshooting scan-quality issues Random vertical linesWrinkles or folds Actions Line discontinuities Grain in area fills when scanning plain paper Small color differences between adjacent CIS modules Vertical light lines at the intersection between CIS modules Variable line thickness or missing lines Inaccurately reproduced colors Color fringing Clipping in dark or light areas Clipping in dark or light areas Vertical red and green bands over white or black background Flare in the image when scanning glossy originalsStop-start effect Vibration Vibration Horizontal periodical banding Defocus, blurring and fading colors Defocus, blurring and fading colors Enww Vertical black band 20 cm wide Original Scan affected by a CIS failing module Scanner damages some originals Completely wrong colors Vertical distortion Object replication ghosting Incorrect edge detection, mostly when scanning tracing paper Copied or scanned image is very skewed Scanner diagnostic plot Scanner diagnostic plot Visual check for errors while printing the diagnostic sheet Resolution Alignment Loss of shadow or highlight details Maintenance Clean printheadsPrinter banding Scan or copy the diagnostic plot StreaksGrain Scan Monitor calibration Save the diagnostic plot for future useCopy Troubleshooting ink cartridge and printhead issues Troubleshooting ink cartridge and printhead issues Ink cartridge status messages Cannot insert an ink cartridgeCannot insert the printhead Clean the printhead Align the printhead Printhead status messages On page 145 and Insert the printhead on Troubleshooting general printer issues Troubleshooting general printer issues Printer will not start Printer does not print Restore factory settings Printer seems slowPrinter behaves strangely Communication failures between computer and printer Cannot access the Embedded Web Server Cannot access the HP UtilityCannot connect to the Internet Alerts Web Services issues Automatic file system checkAll tests Options on Alerts Front-panel error messages Front-panel error messages 2Numerical error codes 237 Using a USB flash drive System error logUsing the Embedded Web Server HP Customer Care 239 Introduction HP Professional Services HP Care Packs and Warranty ExtensionsHP Support Center HP Start-Up Kit HP Installation HP Proactive SupportCustomer Self Repair Convenient, easy to use How to contact HP Support Contact HP Support Printer specifications 243 Functional specifications Printer specifications Scanner resolutions 200, 300, 600 ppi Physical specificationsFor a list of supported papers, see Order paper on Memory specifications Power specificationsEnvironmental specifications Acoustic specifications Glossary Firmware GamutGigabit Ethernet Hi-Speed USB Paper PlatenPrinter driver Printhead Index Paper size Print connectivity config Usage 137 Reset paper advanceSpecification 244 Speaker volume Status 141 Unit selection Setup Download presets Economical use Paper not in list 174 Presets Print on loaded paper170 Power On/off 229 Printhead cleaner Clean glass plate 157 101 Network settings Sheet paper Load Sleep modeSlow printing 232 Smartphone Software Software update 154 246 Printing resolutions Spindle