Technical data

6.6 1020–1024 CLEAR PAPER PATH
• Prefuser transport and fuser entrance areas
• Fuser exit and postfuser transport area
2. If the top half of the postfuser transport is not closed, the sheet will ride
over the sensor and stall. When the exit door closes it pushes the levers
that grab and lock the upper plate of the postfuser transport.
3. If the surface of the registration roller is dirty, glazed, or oily, replace the
registration transport assembly.
4. If the surface of either exit roller is dirty, glazed, or oily, replace the roller.
5. Inspect the registration pinch roller that is mounted on the underside of
the developer unit. Make sure it turns freely and the pressure springs
function.
6. Test the gate sensor circuit by entering the 1701 test code 0811. After
entering, manually actuate the gate linkage: If the sensor test fails, do the
following:
• Inspect the condition and mounting of the gate sensor linkage. (See
Figure 6–17.)
• Swap the drive board.
• Swap the DC control board.
7. Test the registration roller clutch by entering the 1701 test code 0805.
After entering, the clutch will energize for a 10 second interval. To test the
clutch for slippage, manually rotate the roller. It must turn freely when
the clutch is off and must lock up when the clutch is energized.
If the test fails, swap the registration transport assembly or DC control
board. (Figure 6–4 shows the wiring diagram.)
Paper Path Jam FIPs 6–29