Sony PICTURE STATION DPP-FP90 Service-Handbuch - Seite 19
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4-2. ADJUSTMENT
4-2-1. DENSITY ADJUSTMENT
The density adjustment is required after replacing the thermal printer
or the MAIN board.
Preparation:
Before replacing the thermal printer or the MAIN board, print a test
pattern (17 step) as the reference of density.
The test pattern (17 step) should be printed before replacing the
thermal printer or the MAIN board, or when this unit is in the normal
state.
Note: If there is any printing failure in the test pattern (17 step) printed before
replacing the thermal printer or the MAIN board, do not use it.
Or in case that the test pattern (17 step) cannot be printed, use the
test pattern that is printed by using the normally-working printer
(DPP-FP90).
Adjustment:
1.
Start the service mode. (Refer to Section 4-1-1.)
2.
Confirm the value written in the label on the HEAD of a thermal
printer.
Ex.) 17.51
3.
Connect Digital voltmeter to TP230 VH and TP213 GND and
check the voltage.
4.
Adjust with RV201 VH Adj. so that the voltage value on TP230
becomes to the value confirmed in the item 2.
TP230:VH
TP213:GND
Adjustment part: RV201 VH ADJ.
MAIN BOARD
After adjustment, turned off the power.
Procedure:
1.
Set the ribbon and paper to this unit.
Note: Use the ribbon and paper below.
Color print pack SVM-F40P (postcard size)
2.
Start the service mode. (Refer to Section 1-1-1.)
Initial screen where service mode was started.
Turn off LED of PRINT and ACCESS.
(When lighting, turned off pushing the PRINT button. )
3.
Select "Print Calibrate" using the arrow buttons (f,F) and press
the [ENTER] button.
DPP-FP90
TP213
(GND)
TP230
(VH)
RV201
4.
When the following screen is displayed on the LCD of this
unit, press the [PRINT] button.
Printing of the test pattern (17 step) starts.
5.
Quit the service mode. (Refer to Section 1-1-1.)
Keep the printed output produced in step 4 as the reference.
6.
Afterwards, confirmed to execute the procedure from 1 to 5,
and to be printed like the sample.
Confirmed that the color has not extremely adhered to a white
part, and it is lustrous to a black part, and a black part has not
thinned extremely.
7.
Start the service mode. (Refer to Section 1-1-1.)
8.
Select "Reset PrtCnt" by pushing DIRECTION button (f,F) ,
then push the ENTER button.
The number of sheets of the print is cleared, and displayed in
the right of "ResetPrtCnt" as "OK".
9.
Quit the service mode. (Refer to Section 1-1-1.)
4-3