Ink Supply Station Error
Last updated: February 21, 2026
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HP Z9+ System error: 0021-0002-0017
This error indicates a problem with the ink supply station, which manages the flow of ink from the cartridges to the printheads. It can be due to a faulty pump, sensor, or a blockage within the ink delivery system.
- 1
Turn off the printer, unplug the power cord, and wait for 5 minutes.
- 2
Reconnect the power cord and turn on the printer. Observe if the error clears.
- 3
Ensure all ink cartridges are correctly seated and not empty. Replace any empty or nearly empty cartridges.
Model-Specific Notes: • T-Series (e.g., T730, T830): Check for any visible ink leaks around the cartridge bay. Ensure the cartridge latches are fully engaged. • Z-Series (e.g., Z2600, Z5600): The ink supply station often contains maintenance components. Look for dried ink buildup around the pumps or tubing. Expert Insight: This error often requires a system purge or ink tube replacement. Before that, check for any pinched or kinked ink tubes. Listen for the sound of the ink pumps during startup; a lack of sound or unusual noises can indicate a pump failure. If accessible, inspect the ink filters for clogging. A service technician might use diagnostic tools to initiate specific ink system tests or purges.
Reference diagrams for common repair procedures related to this error:
Ink System Components & Flow Path
Note: These diagrams are for reference only. Always consult official HP service documentation and follow proper ESD precautions.
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The component that deposits ink onto the media. DesignJet printers use thermal inkjet printheads that fire tiny droplets of ink through microscopic nozzles.
The complete system that stores, transports, and delivers ink from the cartridges to the printheads, including tubes, valves, and pressure regulators.
A maintenance area on the right side of the printer where the printheads are capped and cleaned when not in use. It prevents ink from drying in the nozzles.
Optical or mechanical sensors that detect the presence, type, width, and position of print media loaded in the printer.
A replaceable cartridge that collects excess ink from printhead cleaning cycles, spitting, and other maintenance operations.
A calibration process that ensures all printheads are precisely aligned relative to each other for accurate color registration and sharp output.
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