B245/B276/B277/B268/B269 Service Manual 18-Jan-06
99
NIP Band Width Adjustment
Do this adjustment when the fusing unit is at its operating temperature. The size of the OHP
sheet must be A4/LT LEF. Any other sizes may cause a paper jam.
1. Pressure roller
2. Hot roller
1. Place an OHP sheet on the by-pass feed table.
2. Enter SP mode, and run SP 1109.
3. Press ‘1’ (Yes)
4. Press
twice. The machine feeds the OHP sheet into the fusing section, stops it
there for 20 seconds, then ejects it to the copy tray.
5. Press the
key.
6. Quit the SP mode.
7. Check that the nip band (the opaque stripe) across the ejected OHP sheet is
symmetrical, with both ends slightly thicker than the center.
There is no standard value for the nip band on this machine. Make the
adjustment based on the band's appearance.
8. If the band is not as described above, change the position of the spring hooks [C]
(one on each side), and then check the band again.
The higher hook position produces greater tension.
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