Cause

The 1641 support code signifies that the printer has detected that the remaining ink in one or more of the ink tanks may have reached the lower limit line shown on the ink tank. 
 

What to Do

To check the remaining ink level, visually inspect the remaining ink in the ink tank. The action you should take to resume operating the printer depends upon which function(s) of the printer you intend to use.

1. To PRINT or COPY

   If you intend to PRINT or COPY, you should take one of the following steps:

   1. Press the OK button on the printer. If there is some residual amount of ink in the tank(s), you will be able to PRINT or COPY until the remaining ink is depleted, although image quality may diminish as the remaining ink in the tank(s) becomes depleted.

      Please note that if you continue to PRINT or COPY when the remaining ink is below the lower limit line, the printer may consume excess ink as it attempts to return to normal image quality after it is refilled with ink.

      OR

   2. Refill the ink tank (G5020 / G6020 / G7020) with the corresponding color of ink to above the single dot shown on the ink tank.  

      You will then be able to PRINT or COPY.

2. To SCAN or FAX

   If you intend to SCAN (or FAX if your printer has that capability), you should take one of the following steps:

   1. Press the OK button on the printer. You will then be able to SCAN (or FAX if your printer has that capability).

      OR

   2. Refill the ink tank (G5020 / G6020 / G7020) with the corresponding color of ink to above the single dot shown on the ink tank.  

If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.

Or if you still need help, visit our Canon Community by clicking the button below to get answers:

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