5b03pixma-g1220

Canon PIXMA G1220 error 5B03: Ink Absorber

Canon PIXMA G1220 error 5B03 is a maintenance code triggered when the internal ink absorber pad counter hits its programmed capacity. The printer locks to protect against internal ink overflow. This is a common occurrence in high-volume ink tank models, usually requiring a software reset of the counter to resume printing.

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Common causes

  • 1Waste ink absorber pad counter saturation.
  • 2Frequent automatic print head cleaning cycles.
  • 3Ink buildup on internal mechanisms.
  • 4Waste ink sensor trigger.

Solutions

Diagnostic

The 5B03 error is confirmed by the printer's status light pattern. If the display/PC indicates an 'Ink Absorber Full' state, this is the definitive cause.

Step-by-step Solution

  1. Enter Service Mode: Use the hardware button sequence recommended for G-series.
  2. Run Reset Tool: Apply the service tool to zero out the counter memory.
  3. Power Cycle: Turn off and restart the device to exit service mode.
  4. Inspect Pads: Open the base cover and check if the pads are physically saturated.

Maintenance and Prevention

Reduce unnecessary head cleanings to extend counter life. Use official GI-11 ink and ensure the unit is on a level surface to prevent uneven ink pooling.

When to call a technician

If resetting the counter does not resolve the lock or if you observe leaking ink inside, professional maintenance is necessary to prevent hardware damage.

Technical Data

  • Technology: Ink tank system
  • Speed: Up to 9.1 ipm
  • Connectivity: High-speed USB
  • Ink capacity: High-volume tanks
  • Compatible consumables: GI-11 ink bottles
  • Recommended use: High-volume document printing
  • Drivers / official firmware

Steps to follow

  1. 1

    Service mode

    Enter service mode by using the appropriate button sequence.

  2. 2

    Reset counter

    Use a service tool to reset the waste ink counter.

  3. 3

    Restart

    Power cycle the printer to finalize the reset.

  4. 4

    Pad replacement

    Replace physical pads if ink leakage is visible.

Frequently asked questions

Error 5B03 means the internal waste ink counter has reached its limit, preventing the printer from leaking.

Often you can reset the counter via software, but replacing the physically saturated pads is recommended to prevent ink mess.

It uses GI-11 ink bottles designed for its rechargeable tank system.

Minimize head cleaning cycles and use the printer regularly.

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