Xerox Wide Format 6705 System Manual page 294

7. Fusing Unit
ADJ7.2.1 Nip Balance Adjustment
Purpose To correct the Left/Right Nip spring length whenever any of the accompanying
Pressure Roll components (Pressure Roll, Nip Spring, Nip Lever, Nip Adjust Screw,
etc.) had been replaced or removed. (For WF6705, there is no adjustment of Nip
width)
Note Measure the Nip Spring lengths when the Fusing Unit is cool. (If the Fusing Unit is in hot
state, the Pressure Roll is expanded and it will not possible to measure the accurate
value.)
Note Close the Swing Frame in advance.
Check Procedure
WARNING
Because of high temperature, perform the following procedure only after the parts have
sufficiently cooled down.
WARNING
Turn OFF the power and the breaker, and unplug the power plug to prevent electric shock.
1. Turn OFF the power and wait until the Fusing Unit has sufficiently cooled down.
2. While waiting, take a piece of A4 or B5 paper, fold it in 4 and cut out a strip with length of
75.5 ±0.3 mm (with width of approx. 10 mm) to make a measuring paper. (Figure 1)
Reference The measuring paper is made as it is difficult to perform the measurement here
and measurement error can occur easily when using a ruler.
4-160
(Figure 1) j0bn40751
3. Open the Front Upper Cover (PL 9.1) and Fusing Cover (PL 9.1).
4. With the Knob of the Upper Exit Baffle Assembly in the open state, use the measuring paper
that was made in Step 2. to measure the length of the Nip Spring and check whether it is
within the range of specification value (75.5 ±0.3 mm). (Figure 2)
Chapter 4 Disassembly/Assembly and Adjustment
(Figure 2) j0bn40752
4.3 Adjustment