| Manufacturer / Brand | 100% Compatible |
|---|---|
| Category | HP Printer Parts |
| Printer Type | Inkjet Printer Spare Parts |
| SKU Code | TIS-D51 |
| Warranty & Guarantee | 10 Days Testing Warranty |
| GST Invoicing | 18% GST Tax Invoice Available for B2B Input Credit |
Eliminate false door open warnings and restore normal printer initialization with this Import Quality Door Sensor for HP Smart Tank 515, 516, and 530 printers. In ink tank printer architectures, the front access door provides access to the printhead carriage assembly, ink lines, and paper path jams. For safety and operational reasons, the main board requires a reliable status signal confirming that the door is closed before powering up the carriage motor and starting print commands.
During daily printing operations, repeatedly opening and closing the door to refill ink tanks, inspect printhead latches, or clear paper jams puts mechanical wear on the delicate sensor actuator lever and internal contact points.
Over extended use or accidental mechanical impact during maintenance, the plastic door sensor tab can break, wear down, or become misaligned relative to the front cover push-pin.
When the door sensor fails or loses physical contact with the door hinge tab, the printer logic board receives a continuous signal indicating that the front cover is open.
This detection failure leads to complete printer operational lockouts: the control panel displaying "Door Open" or "Close Access Door" messages, the printhead carriage refusing to center or initialize, red warning indicators flashing continuously, and print commands stalling indefinitely.
Manufactured with high-sensitivity electrical contacts and durable thermoplastic housing, this import quality replacement sensor provides service technicians and repair centers with a direct, drop-in component to restore accurate door state detection and get HP Smart Tank printers back into operational service.
