5b00PIXMA MG3620

Canon PIXMA MG3620 error 5B00: Counter Reset

The Canon PIXMA MG3620 error 5B00 is a service alert signaling that the internal ink absorption counter has reached its maximum capacity. The printer automatically locks to prevent potential ink spills inside the unit. This error is common in Canon printers after numerous deep cleaning cycles or long-term use. Resolution requires access to the firmware service mode.

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Common causes

  • 1Internal waste ink counter at its operating limit.
  • 2Excessive use of printhead cleaning cycles.
  • 3Physical overflow of the absorption pads.
  • 4Firmware synchronization failure with the waste counter chip.

Solutions

Quick Diagnosis

The 5B00 error is manifested by a steady blinking pattern (7 orange, 1 green). If your device stops responding to print commands, it is a clear confirmation of this full counter state.

Step-by-Step Solution

  1. Enter Service Mode: With the printer off, press 'Stop' and keep holding 'Power'.
  2. Reset Sequence: While holding Power, release Stop, then press Stop 5 times. Release Power.
  3. Execute Software: Use Canon Service Tool to send the 'Clear Ink Counter' command.
  4. Restart: Turn the unit off and on to restore communication.

Prevention and Maintenance

Avoid frequent deep head cleanings, as each cycle increases the counter. If possible, physically remove the pads and clean them with warm water (dry thoroughly) before resetting.

When to Call a Technician

If the printer fails to enter service mode, there may be a fault in the main logic board.

Equipment Technical Data

  • Technology: Inkjet
  • Speed: 9.9 ipm (B/W), 5.7 ipm (Color)
  • Connectivity: Wi-Fi, USB 2.0
  • Feed Capacity: 100 sheets
  • Compatible Consumables: Canon PG-240 / CL-241
  • Recommended Use: Home and student use
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Service Mode

    With printer off, hold Stop button and then hold Power button.

  2. 2

    Button Sequence

    While holding Power, press Stop button 5 times, then release both.

  3. 3

    Reset

    Use official service software to clear the EEPROM ink counter.

Frequently asked questions

The 5B00 error indicates that the internal ink absorber pad counter has reached its limit.

Yes, by resetting the counter through service mode or specific software.

It uses Canon PG-240 and CL-241 cartridges.

Ideally yes, as resetting only clears the electronic alert, not the ink buildup.