c-4501AccurioPress C4070

Konica Minolta AccurioPress C4070 Error C-4501: Fix

The Konica Minolta AccurioPress C4070 error C-4501 triggers when the scanner unit detects an lighting failure. This means the exposure lamp cannot produce enough light for the scanner to function, resulting in a system alert. This error prevents any further copying or digital scanning until the light source is restored.

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Common causes

  • 1Burned-out exposure lamp due to extensive operation.
  • 2Defective inverter/ballast for the scanner lamp.
  • 3Heavy dust build-up on the internal scanning optical path.
  • 4Communication errors between the main PCB and the scanning unit.

Solutions

Quick Diagnosis

The error shows up during startup or when you try to scan. Check the scanner glass; if it remains dark when you attempt a copy, you have confirmed a failure in the lamp or its control board.

Step-by-Step Solution

  1. Perform a power cycle to ensure the control board triggers the lamp ignition correctly.
  2. Observe the lamp activity during startup (ensure you do not look directly at intense lighting).
  3. Clean the scan glass to make sure no external obstruction is causing incorrect brightness readings.
  4. Check for loose cables if you have authorized access to the scanner unit housing.

Prevention and Maintenance

Keep the scanner lid closed when not in use to minimize dust on the internal mirrors. Protect the machine from power surges using a UPS, which helps prolong the lifespan of lamp ballasts. Consistent cleaning improves capture accuracy and reduces strain on the lamp.

When to Call a Technician

If the lamp refuses to ignite after a restart, the lamp or its inverter board has likely reached its lifespan limit and failed. This requires professional service intervention to prevent damage to the optics assembly.

Device Technical Specifications

  • Technology: Digital production laser printer
  • Speed: Up to 71 ppm
  • Connectivity: Gigabit Ethernet
  • Feed Capacity: Up to 15,390 sheets
  • Compatible Consumable: TNP series toner (C4070 family)
  • Recommended Use: High-demand production print environments
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Power cycle

    Turn off the device, unplug it for a full minute, and restart to allow the system to attempt a fresh lamp ignition.

  2. 2

    Check the exposure lamp

    Look under the glass during start-up to confirm if the scanning light is failing to turn on.

  3. 3

    Clean the scan area

    Wipe the glass surface thoroughly to ensure the sensor isn't misinterpreting obstruction as a light failure.

Frequently asked questions

The C-4501 indicates the exposure lamp failed to reach necessary brightness or failed to ignite, causing a scanner security shutdown.

Yes, you can usually continue printing from a PC, but scanning and copying functions are effectively disabled until the lamp unit is functional.

If resets and cleaning do not help, the lamp has likely reached the end of its cycle and must be replaced by a technician.

Regular cleaning and avoiding direct sun exposure will extend the life of your lamp and optical mirrors significantly.