As an advanced printing equipment, daily maintenance of digital printing machines is crucial. Effective upkeep techniques can extend their service life and bring more economic benefits to manufacturers. Today, we will share some maintenance tips for digital printing machines.

Ink Cap: Keep it clean at all times, as the ink cap is a component that directly contacts the printhead.

Wiper Blade: Keep it clean at all times, as the wiper blade is a component that directly contacts the printhead.

Lubrication: Regularly apply lubricant to frequently moving parts such as the four columns of the ink base and sliding rails.

Pre-Startup Checks:

Air Pressure Check: Ensure the air pump pressure is normal.

Print Platform Check: Keep the print platform free of foreign objects to avoid scratching or damaging the printhead.

Waste Ink Tank Check: Check the fluid level in the waste ink tank to prevent overflow during cleaning.

Ink Check: Ensure the ink cartridges are sufficiently filled to avoid printhead dry firing, which could cause damage or clogging.

Wiper Blade Check: Keep the cleaning mechanism tidy and the wiper blade clean and undamaged to avoid affecting ink scraping efficiency.

Printhead Status Check Before Printing: Print a test pattern to confirm the printhead is functioning normally. If not, perform a cleaning operation.

Printhead Status Check Before Shutdown: Print a test pattern to confirm the printhead is in good condition. If not, perform a cleaning operation.

Dryer Check: Regularly inspect the dryer’s power supply for aging and internal lamps for damage.

Ink Path Check: Check for any damage to the ink tubes at the ink cartridge and ink sac areas. Replace promptly if damage is found.

Encoder Strip Cleaning: Check for dust or stains on the encoder strip. Minor dust or stains are recommended to be left untouched. If cleaning is necessary, use a white cloth dampened with alcohol to wipe it gently. The cleanliness and position of the encoder strip can affect carriage movement and printing quality.

Rail Check: Inspect the rails and sliders for any unusual noises during operation.

Filter Check: Regularly check the filter for clogging and clean or replace it promptly.

Printhead Maintenance:
12.1. Always Power Off When Installing or Removing the Printhead:
- Installing or removing circuits of the digital printer without turning off the power switch and disconnecting the main power supply can damage various systems, especially the printhead.
12.2. Avoid Prolonged Soaking of the Printhead in Cleaning Fluid:
- Soaking the printhead in cleaning fluid can effectively remove stains, but soaking for more than 48 hours may corrode the printhead nozzles.
12.3. Clean the Printhead Thoroughly When Changing Inks:
- Even for the same type of ink, components in inks produced by different manufacturers may vary. Changing inks without cleaning may generate particles that clog the printhead. Always clean the printhead before changing inks.
12.4. Use High-Quality Inks and Cleaning Fluids:
- Substandard inks can affect printing quality and even clog the printhead. Substandard cleaning fluids may corrode the printhead. Do not compromise quality for low-cost, inferior inks and cleaning fluids. It is best to use original equipment manufacturer (OEM) inks or inks specified by the equipment manufacturer.
12.5. Protect Circuit Boards and Other Internal Systems During Cleaning:
- Turn off the power during cleaning, and ensure that water does not contact circuit boards or other internal systems.
12.6. Adjust the Printhead Position Properly When Applying External Force:
- Whether replacing or fine-tuning the printhead, avoid using excessive force. Handle the printhead carefully according to specifications.
12.7. Static Electricity Protection:
- Digital printers are highly sensitive to static electricity. Avoid direct hand contact with the printhead. Wear protective gloves during maintenance, and regularly check the grounding wire connection.

This translation maintains professional terminology specific to printing machines, ensuring accuracy and clarity for industry professionals.