Service Error: Data Bus Error
This error indicates a problem with the internal data communication pathways (bus) between major components. This is a critical system failure.
- 1Defective Formatter Board (Main Logic Board) causing data bus communication failure.
- 2Loose, damaged, or corroded ribbon cables connecting critical components (e.g., Formatter to Carriage PCA, Formatter to Hard Drive, Formatter to Front Panel).
- 3Failure of the Hard Disk Drive (HDD) or Solid State Drive (SSD) preventing proper data exchange over the bus.
- 4Malfunctioning Carriage PCA (Printed Circuit Assembly) leading to data bus errors during communication with the Formatter.
- 5Power supply unit (PSU) instability or failure affecting the integrity of data signals on the bus.
- Printer freezes or becomes unresponsive during operation or startup.
- Printer displays the error code 0x00F40001 immediately upon power-on or during initialization.
- Inability to print or process print jobs, with the printer remaining idle despite commands.
- Front panel display showing garbled text, partial information, or becoming completely blank.
- Repeated reboots or power cycles without resolving the error, indicating a persistent hardware issue.
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Printer Failure HP Designjet T120

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05:10 service error Designjet 800ps printer
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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.
A numeric or alphanumeric code displayed on the printer's front panel or in diagnostic logs that identifies a specific hardware or software malfunction.
A comprehensive technical document provided by HP to authorized service technicians containing detailed disassembly, repair, and calibration procedures.
The complete system that stores, transports, and delivers ink from the cartridges to the printheads, including tubes, valves, and pressure regulators.
A company that has been certified by HP to provide warranty and out-of-warranty repair services for HP DesignJet printers.