c0071bizhub 166

Konica Minolta bizhub 166 Error C0071: Motor Sensor Fault

The Konica Minolta bizhub 166 error C0071 denotes a signal irregularity in the main motor's locking sensor. Unlike C0070, this error specifically targets the feedback loop from the sensor, suggesting a potential connection fault or dirt.

1 views

Common causes

  • 1Dirty encoder disk
  • 2Loose sensor wire
  • 3Control board fault
  • 4Encoder disk wear

Solutions

Quick diagnosis

Error C0071 appears on startup. If the motor briefly twitches, the encoder feedback is missing or invalid.

Step-by-step solution

  1. Check sensor cabling for loose connections.
  2. Clean the encoder disk carefully to remove dust.
  3. Verify transmission belt tension.
  4. Reset counters via service mode.

Prevention and maintenance

Routine removal of toner dust from inner sensors prevents false readings.

When to call a technician

Access to internal sensors and board-level checks requires a qualified service engineer.

Technical data

  • Technology: Monochrome Laser
  • Speed: 16 ppm
  • Connectivity: USB
  • Compatible supply: TN-116
  • Recommended use: Medium office
  • Official drivers / firmware

Steps to follow

  1. 1

    Power off

    Disconnect electricity.

  2. 2

    Inspect

    Check encoder disk.

  3. 3

    Clean

    Wipe optical sensor.

  4. 4

    Reset

    Restart printer.

Frequently asked questions

Motor feedback signal failure.

Yes, through cleaning or cable repair.

TN-116 series.

Regular preventive maintenance.