APP sensor error or Error Code 6A90 Solved

APP sensor error or Error Code 6A90





Condition: An error occurred during paper feeding or purging.
Problems and Solutions:

    check for foreign material or paper debris around the purge drive system unit;
    - remove foreign material.
    check for foreign material or paper debris around the ASF unit;
    - remove foreign material.
    If other solution fail, replace one off the following part
    - Purge drive system unit
    - Logic board