SATO Printer 8400RVe User Guide

EZ Manual  
M-8400RVe  
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EZ Manual: M-8400RVe  
3
Electric Checks and Adjustments  
Chart 1  
Dial test point  
Comment  
Voltage  
+5.0 VDC  
+2.0 VDC  
+3.3 VDC  
+24.0 VDC  
Voltage Range  
+4.8V to +5.2V  
+1.9V to +2.1V  
+3.1V to +3.5V  
+23.5V to +24.5V  
Check pin on TP Test Module and Main PCB  
Adjustment to VR  
0
1
2
3
DC power Supply  
DC power Supply  
DC power Supply  
DC power Supply  
CH3A(+5.0V) - CH1A(GND)  
CH4A(+2.0V) - CH1A(GND)  
CH5A(+3.3V) - CH1A(GND)  
CH6A(+24.0V) - CH1A(GND)  
N/A  
N/A  
N/A  
N/A  
Low level (Set the blank area  
on the sensor) = A  
High level (Set the I-mark  
on the sensor) = B  
4
I-Mark Sensor Level  
CH1B(+8.4V) - CH1A(GND)  
VR5  
High level - Low level =  
A - B = more than +0.9V  
Low level (Set the label backing liner or the  
centre hole [in case of the centre hole tag]  
on the sensor) = C  
High level (Set the label or  
tag on the sensor) = D  
5
Gap sensor Level  
CH2B - CH1A(GND)  
VR4  
High level - Low level =  
C - D = more than +1.0V  
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4
Potentiometers are located on MAIN PCB.  
Electric Checks and Adjustments  
Chart 2  
VR1(OFS)  
VR2(DEM)  
VR3(CE)  
Pitch Offset Adjustment  
Dispenser Sensor Level Adjustment  
Ribbon Sensor Level Adjustment  
Gap Sensor Level Adjustment  
I-Mark Sensor Level Adjustment  
VR5 I-mark  
VR4 Gap  
VR4(GAP)  
VR5(IM)  
VR1 Offset  
VR2 DEM  
VR3 CE  
MAIN PCB  
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EZ Manual: M-8400RVe  
5
Potentiometers are located on FRONT PANEL  
Electric Checks and Adjustments  
Chart 3  
PRINT  
Adjust Print Darkness  
Adjust FEED/BACKFEED  
Adjust Pitch Offset  
OFFSET  
PITCH  
DISPLAY  
Adjust Display Darkness  
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6
Excessive ribbon and rewind tension will result in variable  
motion and could be the cause of print quality problems.  
Ensure the ribbon rewind and unwind tensions are within  
specifications or adjustment of either clutch is necessary.  
STEPS  
Ribbon Clutch  
Adjustment  
1 Switch the printer OFF and disconnect the power  
cable.  
2 Raise the top access door and open the front access  
Required equipment  
door. Remove the ribbon and label stock if installed.  
1 Empty Ribbon Core and String  
2 12mm Wrench  
3 Attach string to an empty ribbon core and place on  
the Ribbon Spindle. Wind the string tightly around the  
ribbon core in single layer and in clockwise direction.  
Attach the end of the string to the tension gauge.  
3 1kg or 2kg Tension Gage  
4 #2 Pozidrv Screwdriver  
3
4
4 Gradually liftthe tension gauge, pulling the string unwind  
it from the core. Once the spindle starts to move, the  
gauge should be indicate 950 to 1050 grams of tension  
for ribbon rewind, and 550 to 650 grams of tension  
for ribbon unwind. Refer to pictures in next page.  
2
5 To adjust the clutch, loosen the locking screw and  
move the adjust nut CW for more tension and CCW  
for less tension. Tighten the locking screw and repeat  
steps 3 and 4 until the correct tension is achieved.  
1
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7
Ribbon Unwind Clutch 550g-650g Unwind  
Ribbon Clutch  
Adjustment  
continued  
Locking Screw is inside Adjust Nut  
Adjust Nut  
Ribbon Rewind Clutch 950g-1050g Rewind  
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8
Minor Adjustment  
STEPS  
Print Head Position  
Alignment  
Required equipment  
10mm Open End Wrench  
“+”Screw-driver  
1 Loosen the screws on the head plate. Print user test  
pattern. Realign the print head by prying adjust plate  
forward or backward with flat blade screwdriver. Refer  
to illustrations and note adjustment marks.  
(JIS No.2 equivalent)  
To adjust the print head alignment and consistent quality  
across label, perform the following steps:  
2 Tighten the screws.  
Adjustment Marks  
Screw  
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9
Major Adjustment  
Print Head Balance  
Adjustment  
Required equipment  
“+”Screw-driver  
(JIS No.2 equivalent)  
STEPS  
1
Loosen the set screw.  
Turn the adjust screw in clockwise or  
in counter-clockwise direction depending on the situation  
2 Turn the adjust screw to make adjustment.  
3 If the front side of label is too light, turn the screw in  
clockwise direction.  
4 If the front side of label is too dark, turn the screw in  
counter-clockwise direction.  
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Loosen the set screw  
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