c-4700TASKalfa 4551ci

Kyocera TASKalfa 4551ci C-4700 Error: Troubleshooting Guide

The Kyocera TASKalfa 4551ci C-4700 error is a system warning identifying a fault in the scanner motor. This code occurs when the device fails to initialize the optical carriage correctly during startup. Troubleshooting typically involves a physical inspection of the scanning mechanism and a hard system reboot to clear the fault.

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Common causes

  • 1Malfunctioning scanner stepping motor.
  • 2Worn-out scanner carriage timing belt.
  • 3Debris obstructing the optical unit rail.
  • 4Main Board communication error.

Solutions

Quick Diagnosis

The C-4700 error is confirmed when the scanner makes abnormal clicking sounds or fails to move during the initialization phase. Listen for mechanical stalling which often indicates a carriage jam.

Step-by-Step Solution

  1. Hard Power Off: Shut down the printer using the main power switch.
  2. Path Inspection: Open the top cover and clear any debris or dust from the scanner track.
  3. Reset Procedure: Unplug the machine for one minute, then reconnect and restart.

Prevention and Maintenance

Regularly clean the scan glass with a lint-free cloth. Using original Kyocera toner helps prevent fine dust buildup inside the unit, which can interfere with optical sensors over time.

When to Call a Technician

If the error persists after a full power cycle, there is likely internal hardware damage to the scanning motor assembly that requires professional servicing.

Device Technical Specifications

  • Technology: Color Laser Multifunction
  • Print Speed: 45 ppm
  • Connectivity: Gigabit Ethernet, USB 2.0
  • Compatible Consumable: TK-8307 Toner Series
  • Recommended Use: High-volume corporate offices
  • Official Drivers / firmware

Steps to follow

  1. 1

    Full Power Cycle

    Power off the machine via the main switch and unplug it from the wall outlet.

  2. 2

    Check Obstructions

    Clean the platen glass and verify the scanner carriage path is clear of debris.

  3. 3

    System Reset

    Wait for 30 seconds before plugging the device back in to reset sensors.

Frequently asked questions

This code points to a malfunction in the scanner assembly, often caused by a mechanical obstruction or a faulty LED lamp.

Yes, it disables scanning and copying functions, requiring immediate troubleshooting.

Use only genuine TK-8307 series cartridges for optimal machine performance.

Keep the glass surface clean and avoid physical impacts to the device.