HP DesignJet T790 and T1300 Printer Series - Using your printer

1. Turn o the printer at the front panel.
2. To avoid an electric shock, switch the printer o and unplug it.
3. Open the window.
4. Find the printhead drop detector beside the stored printhead carriage.
158 Chapter 18 Troubleshooting ink cartridge and printhead issues ENWW