20 June 2005
SERVICE PROGRAM MODE TABLES
5-127
Service
Tables
5.2.8 NIP BAND WIDTH ADJUSTMENT: SP1-109
When paper wrinkling or image offset occurs, the pressure from the pressure roller
can be adjusted by changing the position of the pressure springs. At this time, the
nip bandwidth can also be checked with SP1-109.
1. Execute SP5-802 to perform a free run of about 50 sheets.
2. Open SP1-109-1, press
, and then press Yes to confirm the selection.
3. Press Copy Window to return to the copy window.
4. Place an OHP sheet (A4/8.5" x 11" sideways) on the by-pass feed tray.
5. Press Start
twice. The OHP sheet stops in the fusing unit for about 10
seconds, then it exits automatically.
6. Check the nip bandwidth [A]. The relationship between the position of the
pressure spring and the bandwidth is as follows.
NOTE:
Check the nip bandwidth around the center of the OHP.
Pressure spring position
Nip width
Upper (default position)
6.0
±
0.5 mm
Lower
6.5
±
0.6 mm
If the width is out of the above specification, the pressure spring should be
replaced.
Paper feed direction
OHP
A231M509.WMF
[A]
