HP C7769B Service Manual - Page 51

CAUTION Ink Supplies Troubleshooting Some General Precautions When Handling the Ink Supplies Do not touch, wipe or attempt to clean the Printhead nozzles. This can damage the Printhead. Do not touch the Electrical Contacts Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead. C6074297a Handle the Ink Supplies with care. In particular the Printhead, which is a high precision device, must be handled very carefully. n Do not touch the Printhead nozzles. n Do not touch the Electrical contacts on the Printhead. n Do not put the Printhead down on the nozzles. n Do not be rough when handling the Printheads. Always set them down gently. n Do not drop the Printheads. n Proper handling will assure optimum performance throughout the Printhead life. n Do not touch the end of the Ink Cartridge which is inserted into the Printer as there may be a small amount of ink on the connection. n Avoid storing partially used Ink Cartridges on their ends. HP DesignJets 500 and 800 Series Printers Service Manual 3-5