IV.
Cases when the adjustment is required
1) When the optical section is disassembled or its part is
replaced (including the scanner home position sensor).
2) When the SPF unit is disassembled or its part is replaced.
3) When the main PWB is replaced.
4) When the RAM in the main PWB is replaced.
5) When "U2" trouble occurs.
6) When the resist roller unit is disassembled or replaced.
7) When the blank lamp is replaced.
V.
Necessary tools
*
Screwdriver
*
Scale
*
Test chart
*
Black background document
(Copy image position adjustment)
1) Execute simulations 45-1. (C
→
0
→
0
→
45
→
CB
→
1
→
CB)
Simulations 45 is to adjust the size of the void area in the
lead edge of the copy paper.
The set adjustment value is displayed on the COPIES
SELECTED display.
2) Set the set value of simulations 45-1 to "0."
Enter "0" with the numeric key and press PRINT button.
3) Execute simulations 50-1. (C
→
0
→
0
→
C
→
50
→
CB
→
1
→
CB)
This simulation adjusts the copy image position for the
paper. One of the set adjustment values is displayed on the
COPIES SELECTED display.
Adjustment value A:
(SF-2414/2514)
Corresponds to the time interval from
the scanner unit starting and the
scanner home position sensor OFF to
reaching at the lead edge of the docu-
ment. That is, this is the value used to
determine the optical document lead
edge reference position, and it must
be fit with the edge section of the
document reference plate.
If this value is improper, when the
copy magnification ratio is changed,
the copy image lead edge position for
the copy paper edge will fluctuate.
(Does not exist in the models which
have no zoom copy functions.)
Adjustment value B:
(SF-2414/2514)
Corresponds to the time interval from
the scanner unit starting and the
scanner home position sensor OFF to
the resist roller ON.
According to this value, the paper
feed timing for the image on the
photoconductor drum is changed and
the copy image position on the copy
paper is also changed.
When the set value is changed by "1,"
the position of the copy image on the
copy paper is changed by about
0.123 mm.
When the set value is made greater,
the copy image position for the copy
paper moves backward. When the set
value is made greater, the copy image
position for the copy paper moves for-
ward.
Adjustment value C:
(SF-2514 only)
Corresponds to the time interval from
the SPF resist roller ON to the copier
resist roller ON. This value is used to
change the paper feed timing for the
image on the photoconductor drum
and to change the copy image posi-
tion on the copy paper.
When the set value is changed by
"1," the copy image position is
changed by about 0.123 mm.
When the set value is made greater,
the copy image position for the copy
paper moves backward. When the set
value is made greater, the copy
image position for the copy paper
moves forward.
Adjustment value A:
(SF-2314)
Corresponds to the time interval from
the scanner unit starting and the
scanner home position sensor OFF
to the resist roller ON.
According to this value, the paper
feed timing for the image on the
photoconductor drum is changed and
the copy image position on the copy
paper is also changed.
When the set value is changed by
"1," the position of the copy image on
the copy paper is changed by about
0.123 mm.
When the set value is made greater,
the copy image position for the copy
paper moves backward. When the
set value is made greater, the copy
image position for the copy paper
moves forward.
Use the paper tray select key to select the display of adjust-
ment value A, adjustment value B, and to select the set
mode.
Display lamp
Display content/set mode
Copier tray cassette paper feed
lamp ON.
Adjustment value A
Copier tray cassette paper feed
lamp BLINKS.
Adjustment value B
(SF-2414/2514)
Copier tray cassette/option tray
cassette paper feed lamps ON.
Adjustment value C
(SF-2514 only)
4) Set adjustment value A, adjustment value B, and adjust-
ment value C to "0." (For the model without zoom functions,
set adjustment value B only.)
Enter "0" with the numeric key and press PRINT button.
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