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DESIGNJET L26500 printer series
Maintenance and troubleshooting guide
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© 2011 Hewlett-Packard Development Legal notices Trademarks Company, L.P. The information contained herein is subject Microsoft® and Windows® are U.S. 1st edition to change without notice. registered trademarks of Microsoft Corporation. The only warranties for HP Products and services are set forth in the express warranty statement accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial
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Table of contents 1 Safety precautions ............................................................................................................ 1 General safety guidelines .......................................................................................................... 1 Electrical shock hazard ............................................................................................................. 1 Heat hazard ..................................................................
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Replace an ink cartridge ......................................................................................................... 23 Replace the ink maintenance kit ............................................................................................... 27 Replace a printhead ............................................................................................................... 30 Replace the printhead cleaning kit .................................................................
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8 Troubleshoot ink-system issues ....................................................................................... 72 Ink maintenance kit needs to be installed .................................................................................. 72 Cannot insert an ink cartridge ................................................................................................. 72 Cannot insert a printhead .........................................................................................
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1 Safety precautions Before using your printer, read the following safety precautions to make sure you use the equipment safely. You are expected to have the appropriate technical training and experience necessary to be aware of hazards to which you may be exposed in performing a task, and take appropriate measures to minimize the risks to yourself and to other people. General safety guidelines ● Refer to the installation instructions before connecting the printer to the supply. ● There are no o
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Safety precautions To avoid the risk of electric shock: ● Do not attempt to dismantle the drying and curing modules or the electrical control cabinet. ● Do not remove or open any other closed system covers or plugs. ● Do not insert objects through slots in the printer. ● Test the functionality of the Residual Current Circuit Breaker (RCCB) every 6 months. Heat hazard The drying and curing subsystems of the printer operate at high temperatures and can cause burns if touched. To avoid personal inj
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Mechanical hazard The printer has moving parts that could cause injury. To avoid personal injury, take the following precautions when working close to the printer. ● Keep your clothing and all parts of your body away from the printer's moving parts. ● Avoid wearing necklaces, bracelets and other hanging objects. ● If your hair is long, try to secure it so that it will not fall into the printer. ● Take care that sleeves or gloves do not get caught in the printer's moving parts. ● Avoid standing c
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Safety precautions Warning labels Label Explanation Risk of burns. Do not touch the internal enclosures of drying and curing modules of the printer. Risk of burns. Do not touch the drying enclosure of the printer. Even after opening the window latch, which disconnects the power to the drying and curing modules, the internal surfaces could be hot. Electric shock hazard. The printer has two input power cords. A voltage is still present in the drying and curing modules after the main switch is turn
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2 Printer status Check printer status You can check the current status of the printer in the following ways: ● The Embedded Web Server displays the status of the printer, the loaded substrate and the ink system. To use the Embedded Web Server, enter your printer's URL into your Web browser. The URL is displayed on the printer's front panel: it is http://192.168.1.1 in the example below: The front panel displays the ink levels by default; otherwise, you can see the ink levels by selecting ● the t
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Printer status The Supplies page shows you the status of the loaded substrate, the ink cartridges, the printheads, the heaters, the printhead cleaning kit, the ink funnel and the ink maintenance kit. The traffic light shows whether maintenance is required. For further information, click View details. Check the status of the ink cartridges To view the ink levels in your ink cartridges, go to the printer's front panel and select the icon. Click the + sign for more details, or use the ink menu. Yo
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● Serial number ● Status (see Front-panel error messages on page 80) ● Volume of ink it has used ● Warranty status You can also use the Embedded Web Server to check the printhead status and the warranty status. NOTE: If the warranty status is See warranty note, this indicates that non-HP ink is being used. Printer service or repairs required as a result of using "non-HP" ink are not covered under warranty. See the Legal Information document for detailed warranty implications. Check the file syst
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Firmware update 3 Firmware update The printer's various functions are controlled by software that resides in the printer, also known as firmware. From time to time, firmware updates from Hewlett-Packard become available. These updates increase the printer's functionality and enhance its features. Firmware updates can be downloaded from HP's Web site (http://www.hp.com/go/graphic-arts/) and installed in your printer using the printer's Embedded Web Server. To access the Embedded Web Server from a
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4 Hardware maintenance For the tasks in this chapter, you may need the User Maintenance Kit that was provided with your printer. Ink system tips For best results, always follow these guidelines: ● Follow the instructions on the front panel during installation. ● Allow the printer and the printhead cleaning cartridge to clean the printheads automatically. ● Avoid unnecessary removal of the ink cartridges and printheads. ● The ink cartridges should never be removed while the printer is printing. T
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Maintain hardware The process takes about 10 minutes and starts immediately, unless an image is currently being printed. If a print job is in process, the alignment will be done as soon as the current print job is finished. Manual alignment To request a manual printhead alignment from the front panel, select the icon, then select Image quality maintenance > Align printheads > Manual PH alignment > Print alignment pattern. To request manual printhead alignment from the Embedded Web Server, selec
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3. Stick it to the platen as shown. 4. Load the substrate that you want to check. 5. Open your RIP software. 6. Download the test file from inside the printer: http://printerIP/hp/device/webAccess/ images/Ink_trespassing_check.pdf, where printerIP is the IP address of your printer. 7. Print the test file using the number of passes and media profile that you intend to use in future with this substrate (or a similar profile in terms of ink limit). 8. Unload the substrate. 9. Remove the strip of se
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Maintain hardware Clean the electrical connections on a printhead It is possible that the printer will not recognize a printhead after it has been installed. This can happen when ink builds up on the electrical connections between the printhead and the printhead carriage. Under these circumstances, HP recommends that you clean the electrical connections on the printhead. However, routine cleaning of the connections when no problems are apparent is not recommended. A carriage interconnect wiper i
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3. Load the sponge by positioning the sponge on the face of the carriage interconnect wiper with the shorter tab in the locating slot. 4. Close the carriage interconnect wiper, trapping the sponge in place. 5. Open the printhead carriage latch and extract the printhead that is causing the problem, as indicated on the front panel. See Replace a printhead on page 30. 6. Insert the carriage interconnect wiper into the printhead slot at the back. Wipe the electrical contacts by inserting the tool be
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Maintain hardware 8. Take special care to clean all contacts thoroughly, including the ones at the lowest point of the connector. 9. Using the same sponge, clean the lower strip of electrical contacts on the printhead (unless the printhead is new). Avoid touching the upper set of electrical contacts. CAUTION: Do not touch the surface of the printhead that contains the nozzles, because the nozzles are easily damaged. 10. After waiting a few moments to allow both connectors to dry, replace the pri
