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Fuser: 923 Error
Check the connection and continuity of the cable from the fuser exit
sensor board to system board (10P/10R/12R/12C/12L)J19
(16L)J16. Check the thermistor condition and connection.
Check the thermistor resistance at system board (10P/10R/12R/
12C/12L)J19-5 to J19-6 (16L)J16-5 to J16-6. It should be from 100K
Ohms to 260K Ohms when cold; it may be as low as 2.3K Ohms
when hot but increase quickly as the fuser cools.