Ricoh Aficio FT4027, Service Manual

Page: 248 / 685

6.5 VERTICAL REGISTRATION ADJUSTMENT
6.5.1 One Sided Thin Original Mode
Note:
•
After replacing the DF main board, always do the Rough Adjustment using
VR101 first. Then do the Fine Adjustment procedure.
•
At other times, just do the Fine Adjustment procedure.
•
After finishing the adjustment, be sure to turn off the dip switch.
- Rough Adjustment (Using VR101) -
1. Remove the small cover [A] at the rear of the DF upper cover (1 screw).
2. Turn on dip switch 101-1 [B].
3. Place a sheet of A4/8
1/2
" x 11" sideways paper (64 g/m 2 , 17 lb) on the
original table. (The paper will feed automatically.)
4. After the original stops on the exposure glass, raise the DF carefully so that
the original does not move.
5. Check that the gap between the trailing edge of the paper and the left original
scale [B] is 0
±
2.5 mm.
6. If the gap is not within this specification, adjust the registration with VR101
[C]. (Turning VR101 counter-clockwise will increase the gap.)
- Fine Adjustment (Using a Copier SP Mode) -
1. Perform steps 1 through 5 of the rough adjustment procedure.
2. If the gap is larger than 2.5 mm, adjust the registration with the copier SP
mode for the DF Registration Adjustment in one-sided original mode.
(Increasing the setting will increase the gap.)
[A]
[B]
[C]
FSM 7-13 FT5535/4527/4522