Adjusting The 1St Folding Skew (Zk-2 Only) - Minolta Di551 Service Manual

Step Operation
Remove the ZK from the main body.
1
Remove the four screws to remove the rear
2
cover.
Loosen the two screws holding the punch
3
shift motor (M5).
Use a tension gauge or a spring balance to
measure the tension at the A point. When a
specification value is observed, tighten the
screws.
Spec value: A = 4 ± 0.4kg
4
Note: The tension must be measured at the
root of the motor shaft. Otherwise,
the measuring operation may cause
the shaft to bend.
Reinstall the rear cover using four screws.
5
[34] Adjusting the 1st Folding Skew (ZK-
2 only)
1. Tools
• Screwdriver (Phillips)
2. Adjustment Method
1
Left
Right
3
1. Ticks
2. Supporting point
3. Screw
4. 1st stopper assembly
Step
Set A3 paper into the tray.
1
Set the original chart and make a copy of it.
Check the copy for a possible folding skew.
Spec range: within 0.5 mm
0.5 mm or less
2
Skew pattern A
If the folding skew is outside the spec range,
adjust according to the instructions
described in the following steps.
Open the front door of the FNS.
3
2-141
ADJUSTMENT
2
3
3
4
Operation
1st folding
0.5 mm or less
Skew pattern B