Konica Minolta DF-704 User manual

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DF-704 Dual Scan Document Feeder
INSTALLATION MANUAL
A87R-9550-00
Applied Machines: C368/C308
COLOR MFP: 36 ppm/30 ppm
Product Code: A7PU/A7PY
Caution:
Lifting the machine in an awkward position or
transporting it in a poorly balanced position could
result in personal injury. When transporting the
machine, assign an adequate number of persons
to the job and ensure that each person can take a
good position of not being excessively loaded.
(mass: approx. 12 kg (26-7/16 lb))
1. Accessory parts
Note:
This manual provides the illustrations of the acces-
sory parts and machine that may be slightly differ-
ent in shape from yours. In that case, instead of
the illustrations, use the appearance of your
machine to follow the installation procedure. This
does not cause any significant change or problem
with the procedure.
2. Installation procedures
(1) Turn OFF the power switch and unplug the
power cord from the power outlet.
(2) Hold the dual scan document feeder as shown in
the illustration and remove it from the carton.
Note:
To prevent breakage, do not hold the dual scan
document feeder by the four corners.
No. Name Shape Q’ty
1. Dual scan
board
1
2. Hinge cover
(large)
1
3. Hinge cover
(small)
1
4. Shoulder
screw A 2
5. Shoulder
screw B 2
6. Mounting
screw 2
7. Chart
1
8. Installation
manual
1 set
Keep this bag away from babies and
children. Do not use in cribs, beds,
carriages, or playpens.
The thin film may cling to nose and
mouth and prevent breathing. This bag is
not a toy.

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(3) Remove the protective tape and protective mate-
rials and remove the protective plastic bags of
the cable and relay harness.
Note:
After removing protective tape A, be sure to push
the area indicated by the “ ” mark to lock the
guide.
(4) Screw two supplied shoulder screws A into the
holes in the rear.
(5) Place the dual scan document feeder in position.
(6) Using two supplied mounting screws, tighten the
hinges to secure the dual scan document feeder
in position.
Note:
Tighten the mounting screws in order of [1], [2].
(7) Remove the DF cable cover. (One screw)
A
[1] [2]

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(8) Connect the three connectors of the dual scan
document feeder to the main body, and attach
the harness with a cable tie at the position shown
in the illustration.
(9) Route the indicated harness of the dual scan
document feeder through the cable clamp shown
in the illustration.
Note:
• This step may not be performed depending on
the applicable marketing area.
• Only the harness shown in the illustration must
be routed through the clamp.
• Make sure that there is no slack in the harness
between the clamp and the connectors.
(10) Remove the cord clamp if used to secure the
power cord of the main body. (One screw)
(11) Remove the cap.
(12) Remove the lower rear cover. (12 screws)
(13) Remove the two screws shown in the illustra-
tion.

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(14) Screw two supplied shoulder screws B.
(15) Attach the dual scan board to the main body
using the two screws.
Note:
Attach it with the connector inserted into the MFP
board connector firmly.
(16) Connect the connector of the dual scan docu-
ment feeder to where shown in the illustration.
Route the cable inside the wire saddle of the
main body as shown in the illustration.
(17) Route the cable of the dual scan document
feeder inside the harness guides of the main
body.
Note:
There should be no slack in the cable on the board
box side.
(18) To install the covers and other parts removed in
steps (11) to steps (12), reverse the removal
procedure. (12 screws)
(19) Reinstall the DF cable cover that have been
removed in step (7). (One screw)
Note:
• Be careful not to pinch the harness.
• Insert two claws A into the holes on the main
body cover first. Then fit two claws B into the
holes.
Connector
Wire saddle
Harness guide
Claw B
Claw A

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3. Configuration procedures
<ADF settings>
(1) Close the dual scan document feeder.
(2) Plug the power cord into the power outlet and
turn ON the power switch.
(3) Display the Service Mode screen.
(For details of how to display the Service Mode
screen, see the service manual.)
(4) Touch “System 2.”
(5) Touch “ .”
(6) Touch “ADF Settings.”
(7) Touch “Dual Scan Document Feeder.”
(8) Touch “END.”
(9) Touch “Exit” on the Service Mode screen.
(10)Turn OFF and ON the power switch.
Note:
When displayed the Service Mode screen, be sure
to turn off the power after exiting the Service Mode
screen and wait for 10 seconds or more before
turning on.
4. Adjustment procedures
<Adjusting the height>
(1) Check the clearance between the upper face of
scanner and the protrusion on the dual scan doc-
ument feeder side. (Three spots)
Note:
There must be no clearance between the protru-
sion on the dual scan document feeder and the
upper face of scanner.
Protrusion
Protrusion
<OK>
<NG>
Protrusion

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(2) If there is any clearance, adjust the height by
turning the adjustment screw on the right side
viewed from the back.
Clockwise: The rear side will move up.
Counterclockwise: The rear side will move down.
• If further adjustment is required, adjust the height
by using the adjustment screw on the left side
viewed from the back together.
Clockwise: The rear side will move up.
Counterclockwise: The rear side will move down.
<Zoom ratio adjustment>
(1) Display the Service Mode screen.
(For details of how to display the Service Mode
screen, see the service manual.)
(2) Touch “ADF.”
(3) Touch “FD-Mag. Adj.(F).”
(4) Touch “Auto Adjust.”
(5) Place the chart in the document feeding tray
(with the side having an arrow facing up).
(6) Press the Start key.
(7) Check that “Adjustment Result” is “OK” and then
touch “SET.”
(8) Touch “END.”
(9) Touch “FD-Mag. Adj.(B).”
(10) Touch “Auto Adjust.”
(11) Place the chart in the document feeding tray
(Make sure that the blank surface of the chart
faces up).
(12) Press the Start key.
(13) Check that “Adjustment Result” is “OK” and
then touch “SET.”
(14) Touch “END.”
(15) Touch “Main Scanning Direction Zoom.”
(16) Touch “Auto Adjust.”
(17) Place the chart in the document feeding tray
(Make sure that the blank surface of the chart
faces up).
(18) Press the Start key.
(19) Check that “Adjustment Result” is “OK” and
then touch “SET.”
(20) Touch “OK.”
(21) Touch “Mixed original size adjustment.”
(22) Place the chart in the document feeding tray
(lengthwise).

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(23) Press the Start key.
(24) Check that “Adjustment Result” is “OK.”
(25) Touch “END.”
<Adjusting DF skew (1-side)>
(1) Touch “Skew Measurement.”
(2) Touch “DFSkew(Front).”
(3) Place the chart in the document feeding tray
(with the side having an arrow facing up).
(4) Press the start key.
The measurement result will be displayed.
(5) Repeat operations from steps (3) to (4) four more
times. (Five times in total)
(6) Check the value of “Avg. Value” on the screen.
Specifications: ±0.5%
Note:
If the value does not fall within the specified range,
perform the following adjustment.
(7) Loosen the mounting screw on the right hinge
viewed from the front.
(8) Check “Scale” on the screen, and adjust the +
(plus) value by turning the adjusting screw on the
backside clockwise.
Note:
• Adjust the adjusting plate to make the value off-
set in the + (plus) direction by the amount
shown in “Scale.”
• When turning the screw, be sure not to raise the
dual scan document feeder until in an upright
position.
To prevent the adjustment screw breakage, be
sure to follow the above instructions.
(9) Adjust the - (minus) value by turning the adjust-
ing screw on the backside counter clockwise.
Note:
• Adjust the adjusting plate to make the value off-
set in the - (minus) direction by the amount
shown in “Scale.”
• When turning the screw, be sure not to raise the
dual scan document feeder until in an upright
position.
To prevent the adjustment screw breakage, be
sure to follow the above instructions.
Mounting screw

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(10) Touch “END.”
(11) Repeat the steps (1) to (6) to check if the value
of “Avg. Value” falls within the specified range.
(12) Attach the two supplied hinge covers as shown
in the illustration.
(13) Tighten the mounting screw on the right hinge
that has been loosened in step (7) using a
screwdriver.
<Adjusting DF skew (2-side)>
(1) Touch “Skew Measurement.”
(2) Touch “DFSkew(Back).”
(3) Place the chart in the document feeding tray
(Make sure that the blank surface of the chart
faces up).
(4) Press the start key.
The measurement result will be displayed.
(5) Repeat operations from steps (3) to (4) four more
times. (Five times in total)
(6) Check the value of “Avg. Value” on the screen.
Specifications: ±0.5%
Note:
If the value does not fall within the specified range,
perform the following adjustment.
(7) Open the dual scan document feeder and
remove the two screws shown in the illustration.
(8) Close the dual scan document feeder.
(9) Remove the front cover.
(10) Loosen the two screws shown in the illustration.
Hinge cover (large)
Hinge cover (small)

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(11) Check “Scale” on the screen, and adjust the
value by turning the adjusting dials as neces-
sary.
In case of the + (plus) value, turn the dial clock-
wise
In case of the - (minus) value, turn the dial
counterclockwise
(12) Touch “END.”
(13) Repeat the steps (1) to (6) to check if the value
of “Avg. Value” falls within the specified range.
(14) After completing the adjustment, tighten the
screws loosened in step (10).
(15) Install the front cover removed in step (9). (Two
screws)
<Auto Stop Position Adjustment>
(1) Touch “Auto Stop Position Adjustment.”
(2) Touch “Sub Scanning Direction 1-Side.”
(3) Place the chart in the document feeding tray
(with the side having an arrow facing up).
(4) Press the Start key.
(5) Check that “Adjustment Result” is “OK” and then
touch “SET.”
(6) Touch “Sub Scanning Direction 2-Side.”
(7) Place the chart in the document feeding tray
(Make sure that the blank surface of the chart
faces up).
(8) Press the Start key.
(9) Check that “Adjustment Result” is “OK” and then
touch “SET.”
(10) Touch “Main Scanning (Front).”
(11) Place the chart in the document feeding tray
(with the side having an arrow facing up).
(12) Press the Start key.
(13) Check that “Adjustment Result” is “OK” and
then touch “SET.”
(14) Touch “Main Scanning (Back).”
(15) Place the chart in the document feeding tray
(Make sure that the blank surface of the chart
faces up).
(16) Press the Start key.
(17) Check that “Adjustment Result” is “OK” and
then touch “SET.”
(18) Touch “END.”

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(19) Touch “Exit” on the Service Mode screen.
(20) Turn OFF and ON the power switch.
Note:
When displayed the Service Mode screen, be sure
to turn off the power after exiting the Service Mode
screen and wait for 10 seconds or more before
turning on.
(21) When all the adjustments are completed, set
the chart to the document feed tray (with the
side with an arrow facing up), and take the
sample copy at the same magnification.
(22) Set the chart face down and take the sample
copy at the same magnification (duplex mode).
(23) Measure the values “a/b/c/d/e” of the chart and
the sample copy.
* b: Measure the copy sample produced in step
(21)
c: Measure the copy sample produced in step
(22)
(24) Check to make sure that the difference of the
chart and the sample copy is within the speci-
fied range.
Specifications a: 0 ± 2.0 mm for the first and the
second page
Specifications b, c: 0 ± 2.0 mm
Specifications d: 0 ± 1.0 mm for the first and the
second page
Specifications e: 0 ± 1.5 mm for the first and the
second page
* If difference in the values is out of specifications,
refer to the service manual and make adjust-
ments.
<Changing the stopper position>
(1) Raise the two hinge covers on the back of the
dual scan document feeder and remove the
stopper from the hinge of the dual scan docu-
ment feeder.
(2) Change the set position of the stopper to the
upper side and secure it in position.
a
d
e
b (When using the first page side)
c (When using the second page side)
Stopper