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Chapter 4
4.2 Maintenance and Inspection
4.2.1 Periodically Replaced Parts
4.2.1.1 Periodically Replaced Parts
This machine does not have parts that must be replaced periodically.
4.2.2 Durables
4.2.2.1 Durables
This machine does not have durables.
4.2.3 Periodical Servicing
4.2.3.1 Periodic Service Items
This machine does not have periodic service items.
4.3 Adjustment
4.3.1 Basic Adjustment
4.3.1.1 Outline
This machine has the following adjustment items. Carry out each adjustment
after replacing the relevant parts.
No.
Adjustment type
[1]
Height adjustment
[2]
Perpendicularity adjustment
[3]
Magnification adjustment
[4]
Side registration adjustment
Leading edge registration
[5]
adjustment
[6]
Reading position adjustment
Carry out the adjustment of above all after removing the ADF from the
reader unit.
4.3.1.2 Height Adjustment
1. Pre-check
Check that the front and rear feet on the pickup side of the DADF are close
contact with the document glass when the DADF is closed.
MEMO
Insert a sheet of paper between the ADF's document glass and the feet (two)
and pull the paper in the direction of the arrow to check that you feel slight
resistance.
The recommended way of making this check is as follows:
First, insert a sheet of paper between the front foot [1] and the ADF's docu-
ment glass, and then pull it.
Next, insert a sheet of paper between the rear foot [2] and the ADF's docu-
ment glass, and then pull it.
- Use plain paper for this adjustment.
- Insert the paper [3] in such a manner that the sheet portion [4] of the docu-
ment glass is covered.
4-2
T-4-2
Replaced parts
Remarks
Hinge
Hinge
Motor/roller
During
-
installation only
During
-
installation only
White roller
F-4-4
0010-3934
0010-3935
0010-3936
[3]
0010-3940
2. Adjustment Sequence
* When the front foot or rear foot is floating
1) Adjust the left hinge. (See 3.)
2) Adjust the right hinge. (See 4.)
3) Adjust the left hinge (see 3) or check the left hinge (see 1).
* When both feet are floating
0010-3942
1) Adjust the left hinge. (See 3.)
2) Adjust the right hinge. (See 4.)
3) Adjust the left hinge. (See 3.)
4) Adjust the right hinge (see 4) or check the right hinge (see 4).
3. Adjusting the Left Hinge Height
1) Adjust the left hinge height using the left height adjusting screw [1].
Loosen the nut [2] before adjustment, and tighten it after adjustment.
* If the front foot is floating, turn the adjusting screw clockwise to lower the
front foot until it touches the glass.
* If the rear foot or both feet are floating, turn the adjusting screw counter-
clockwise to lower the rear foot until it touches the glass.
4. Adjusting the Right Hinge Height
1) When closing the DADF, perform the following checks:
- The rib [1] on the bottom of the ADF must contact the copyboard glass
holder (right) [2]. (Gap A should not exist.)
- Check that the document pressure sheet [2] touches the document glass.
[2]
[1]
[4]
F-4-5
F-4-6
F-4-7
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