Brand: HITACHI
Category: Industrial Marking
Document Type: Parts/Service
Language: EN
Parts/Service for PH
Uploaded: Nov. 21, 2025, 8:53 p.m.
Manual Publish Date: 2011-08-01
Printer Operation Summary
The HITACHI PH printer is an industrial inkjet marking device designed for efficient and reliable printing on various surfaces. It features a print head that ejects ink to create desired marks. The printer's operation involves several key stages:
- System Environment Setup: Configuration of ink type, nozzle size, cable length, and temperature corrections to suit the application and environment.
- Ink Replenishment: Procedures for filling and managing ink levels in the main and makeup ink tanks.
- Ink Stream Alignment: Adjusting the ink path and position for optimal print quality.
- Viscometer Calibration: Ensuring accurate ink viscosity measurement for consistent performance.
- Pressure Adjustment: Setting the correct pressure for different ink types.
- Excitation Adjustment: Fine-tuning excitation voltage and APH gain for precise particle formation.
- Printing: Editing print data such as start delay and character height, and then initiating printing.
- Maintenance: Includes tasks like system reset, backup, and other service personnel functions to ensure continuous operation.
Safety precautions are paramount, covering areas such as handling flammable inks, electrical safety, and proper ventilation.
Troubleshooting and error codes
| Fault Code/Symptom | Description | Possible Cause | Remedy |
|---|---|---|---|
| Storage Media Error | The system cannot access or write to the storage media. | Memory card issue or board failure. | Insert system-data memory card, perform system reset, or replace EZJ124 board. |
| Nozzle clog, Ink beam bending trouble | Ink droplets are not ejected correctly or the ink beam is misaligned. | Clogged nozzles or foreign substances. | Perform ultrasonic cleaning, nozzle backwash, or cleaning paper wiping. |
| Ink-stop type faults | Printing stops due to ink-related issues. | Low ink, clogged filter, pump failure, etc. | Check ink levels, clean filters, inspect pump, and perform appropriate maintenance procedures. |
| Print-stop type faults | Printing stops due to print head or related issues. | Print head malfunction, sensor errors, etc. | Refer to print head maintenance sections and troubleshooting guides. |
| No on-screen indications | The display or control panel is not functioning. | Power supply issue, display connection, or board failure. | Check power supply, connections, and potentially replace the controller board. |