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MX-M200D ADJUSTMENT 6-2
(3)Developing bias voltage check
Note:Use a digital multi-meter with an internal resistance of 10M
Ω or
more.
1) Set the digital multi-meter range above 500 Vdc.
2) Put the test rod of the digital multi-meter on the developing bias
2) Put the test rod of the digital multi-meter on the developing bias
voltage output check pin.
3) Turn on the power, execute SIM25-1.
<Specification>
(4) Grid bias voltage check
Note:Use a digital multi-meter with an internal resistance of 10M
Ω or
more.
1) Set the digital multi-meter range above 600 Vdc.
2) Put the test rod of the digital multi-meter on the grid bias voltage
2) Put the test rod of the digital multi-meter on the grid bias voltage
output check pin.
3) Turn on the power.
(The voltage is outputted in the grid bias High output mode during
warming up, and in the grid bias Low output mode when warming up
is completed.)
warming up, and in the grid bias Low output mode when warming up
is completed.)
<Specification>
B.Mechanism section
Note: If a jam error or paper empty occurs during copying in the
adjustment by the simulation, the image data is not saved, and
therefore recopying is required.
therefore recopying is required.
(1) Image position adjustment
a.OC image lead edge position adjustment (SIM 50-1)
Note: In advance to this adjustment, the sub scanning magnification ratio
adjustment must be performed.
1) Set a scale on the OC table as shown below.
2) Make a copy.
3) Check the copy output. If necessary, perform the following
3) Check the copy output. If necessary, perform the following
adjustment procedures.
4) Execute SIM 50-1.
5) Set the OC lead edge position set value (PHOTO indicator ON) to [1]
5) Set the OC lead edge position set value (PHOTO indicator ON) to [1]
The OC image scanning start position is shifted inside the document
edge.
edge.
6) Set the 1st tray lead edge void adjustment value (TEXT indicator
ON) * to [1]
The lead edge void becomes the minimum.
7) Set the 1st tray print start position value (AUTO, 1st tray indicator
ON) to [1] and make a copy.
The print start position is shifted inside the document edge.
8) Measure the image loss R of the copied image. Enter the set value of
the image scanning lead edge position (PHOTO indicator ON) again.
•1 step of the set value corresponds to about 0.1mm shift.
•Calculate the set value from the formula below.
R/0.1(mm) = Image loss set value
•Calculate the set value from the formula below.
R/0.1(mm) = Image loss set value
<R: Image loss measurement value (mm)>
Example:
4/0.1 = 40 = about 40
Note: If the set value is not obtained from the above formula, perform the
fine adjustment.
Mode
Specification
Developing bias voltage
DC - 400±10V
Mode
Specification
Grid bias LOW
DC - 380±8V
Grid bias HIGH
DC - 525±10V
5
10
5mm
4mm
*
The dimension varies depending on the model.
10
5mm
0mm
5
*
The scanning edge is set.
(A line may be printed by scanning the document edge.)
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