Adj3. 2. 2 Dadf Parallelism - Panasonic DP-C321 Service Handbook

2. Adjust the Left/Right Counter Balance. (Fig. 3)
Adjust only the Left Counter Balance basically. (This is because the DADF rigidity
causes the Right side to lift easily.)
Rotate in the A direction -> Stronger spring pressure
Rotate in the B direction -> Weaker spring pressure
(1) Loosen the nut.
(2) Rotate the Set Screw for the adjustment.
(3) Tighten the nut.
(Fig. 3) j0mf42046
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ADJ3. 2. 2 DADF Parallelism

Reference PL: PL18. 3
Purpose To correct the ADF front-to-rear position by adjusting the Right Counter Balance and to
solve problems such as skews.
Check
After checking that the [Communication Lamp] is turned Off and that there are no
[Jobs in Progress] and [Printer Jobs in Queue (except the printer jobs during HDD
spooling)] on the [In Progress/Queue] screen, turn Off the Power Switch and
disconnect the Power Cord.
1. Remove the Front Cover. (PL18. 1)
2. Remove the Entrance Tray. (PL18. 1)
3. Remove the Document Transport. (Up to Step 2 of REP16. 10. 1)
4. Measure the distance between the DADF Rear Frame and the front of the Paper Side Guide.
Check that the distance is approx. 20 mm. (Fig. 1)
(Fig. 1) The measurement point must be at the center of the Right Counter Balance.
Thrust the scale against the DADF Rear Frame correctly
20 mm
(Fig. 1) j0mf42047
Adjustment
The front-to-rear position adjustment must be made within ±1 mm of the specified
range. Do not adjust more than that.
Chapter 2 Maintenance