Nip Band Width Adjustment: Sp1-109 - Gestetner B003 Service Manual

SERVICE PROGRAM MODE
•
Mode Counts for Copy Application
Other
Mechanical Collate
Count Timing
Other
Stapler
Count Timing
Other

5.1.7 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
Upper (default position)
Lower
If the width is out of the above specification, the pressure spring should be
replaced.
B003/B004/B006/B007
Output to the rotational stacker are not counted. White
sheets (blanks) for the high speed mode are also
counted.
Feed-in starts with "Sort" selected on the finisher.
Counts even for stapling. White sheets (blanks) for the
high speed mode are also counted.
Feed-in starts with "Staple" selected on the finisher.
Not counted for the Collate mode.
O H P
A231M509.WMF
Nip width
6.0 ± 0.5 mm
6.5 ± 0.6 mm
5-60
[A]
SM