Technical data

6.5 0830–0834 CLEAR PAPER PATH
6.5.3 0831 Upper Cassette
Description: This error message is displayed when the registration sensor
fails to detect the trailing edge of a sheet that is fed from the upper cassette.
Troubleshooting: Before you perform this procedure, turn to Section 6.5.
1. Make sure the cassette is loaded with the correct size paper.
2. Make sure the cassette is not overloaded.
3. Remove and fan the paper in the cassette.
4. Enter the 1701 Test code 0711 to read the cassette magnets. See Table 6–2
and Figure 6–15.
Table 6–2 Cassette Size-sensing
Cassette Paper Size-sensing Magnets
Size S1 S2 S3
Cassette not installed 0 0 0
A4 0 1 0
A5 1 1 0
8.5 in. x 14 in. 0 1 1
8.5 in. x 11 in. 1 1 1
Figure 6–15 Cassette Magnets
Side View of
Paper Tray
S1
S2
S3
MLO-006630
5. Swap the upper cassette.
6. Test the upper feed solenoid by entering the 1701 test code 0801. When
entered, the solenoid energizes 5 times. You can hear it click and see it
operate. If the solenoid fails to operate or operates sluggishly, replace it.
7. Swap the DC control board.
8. Inspect the upper feed roller drive gears for any damage or missing teeth.
Paper Path Jam FIPs 6–25