MX-3114N ADJUSTMENTS AND SETTINGS 5 – 21
ADJ 7
Scanner image skew
adjustment (RSPF mode)
This adjustment must be performed in the following cases:
* The RSPF section has been disassembled.
* When replacing the RSPF unit.
* The RSPF unit generates skewed scanned images.
1)
Create an adjustment chart by printing in duplex mode the self-
print pattern (grid pattern) specified in Simulation 64-2.
SIM 64-2 set values
A = 1,
B = 1,
C = 254,
D = 255
Make sure that the print grid pattern is almost in parallel with
the paper edges, and apply position marks A and B to the
leading and trailing edges of the paper surface lead edge sec-
tion.
2)
Copy the adjustment chart (created in step 1) to A3 (11" x 17")
paper in RSPF duplex mode, and then check the image for
skews (Set in the RSPF feed tray so that the mark on the
adjustment chart is at the edge).
• Check with one of the following methods.
Check Method 1
Check Method 2
Check that the squareness of the main scanning direction
print line for the longitudinal direction of paper is within
1.0mm.
If the copy image is not in the above state, perform the pro-
cedure 3).
3)
Open the RSPF unit, and loosen the fixing screw of the hinge.
4)
Slide the RSPF unit in the arrow direction to make the skew
adjustment.
5)
Make a copy again and measure (a) and (b) on the copied test
chart. Repeat procedures 2) to 5) until the condition ((a) - (b) =
1mm or less) is satisfied.
ADJ 8
Scan image focus adjustment
This adjustment must be performed in the following cases:
* The CCD unit has been removed from the machine.
* The CCD unit has been replaced.
* When the copy image focus is not properly adjusted.
* When the copy magnification ratio in the copy image main scan-
ning direction is not properly adjusted.
* U2 trouble has occurred.
1)
Enter the SIM 48-1 mode.
2)
Set the adjustment item CCD (MAIN) to 50 (default value).
Select the adjustment item with the scroll key, and enter the
adjustment value with 10-key and press [OK] key.
3)
Place a scale on the original table as illustrated below.
A
B
Paper pass direction
A
B
a
b
(Front side)
Make sure that the output satisfies the condition: |a-b| ± 1 mm
A
0 - 1.0mm
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