AMT Datasouth Printer CodeWriter 5106 Users Manual

							13 8.Check to see if the bottom edge of the ribbon applicator aligns to the bottom edge
of the thermal head. (See Figure 8)  If not, adjust the alignment following Steps 5
through 7.  The right h/s screw is used for adjustments.
Figure 8. Thermal Head Alignment
9. After adjustments have been made, check to see if the elements of the thermal
head are clean.  If they are not, clean them with a soft cloth dampened with
isopropyl alcohol.
10. Load ribbon and media (labels) into the printer.  Power the printer on.  Feed the
media (labels) a few times in order to align media (labels) and remove any
wrinkles from the ribbon.
11. Check to make sure all the parameters are set to the factory defaults.  Set the
parameter as indicated below:
·Print Speed: 85
·Print Contrast:  Less than 30% as weak as printing result can be readable.
·Label Width:  5.03 in./128 mm
·Label Length  Intervening Label Gap:  Varies according to the label stock
being used.
12. Issue a few labels.  Then perform test printing under the following conditions:
·Issued under normal conditions = Result 1
·Issued while pushing the right hand side of the thermal head block down
slightly with your finger = Result 2
·Issued while lifting the right hand side of the thermal head block up
slightly with your finger = Result 3 
						

							14 NOTE:
Too much lifting up of the thermal head will result in too light (weak) of a contrast in
printing.  Adjusting the head pressure thumb screw will have a direct effect on the
contrast, ribbon feeding, and form feeding.
13.If the right part of the contrast of Result 3 is better than others, move Bracket EA
to the rear slightly by loosening the one phillips screw.  When the right part of the
contrast of Result 2 is better than others, move Bracket EA to the front slightly by
loosening two phillips screws.  If the ribbon applicator interferes with the thermal
head, move it forward
Figure 9. Thermal Head Positioning
NOTE:
The thermal head and Bracket EA are fixed so that the parts rotate around the shaft as
indicated in Figure 10.  Therefore, when you push the thermal head block down, the
relative position between the heat line of the thermal head and the center of the platen
roller becomes narrower.  This is similar to moving the thermal head toward the front.
When lifting the thermal head block up, the relative position between the heat line of the
thermal head and the center of the platen roller becomes wider.  This is similar to moving
the thermal head to the rear. 
						

							15 Figure 10. Head Positioning
14. Repeat Steps 10 through 13 as required until the right part of the contrast of Result 1
is better than Result 2 or 3.
15. Perform test printing as detailed in Step 12 for the left part contrast.  If needed, use a
small slotted screwdriver rod to push down or lift up the left hand side of the thermal
head block to achieve the desired results.
16. When the test printing on both sides is acceptable, you need to check for incline on
the printing result.  Fold the media (label) vertically.  If the difference of printing
between the right side and the left side of the label is more than .02 in./0.5 mm, you
will need to adjust the position of Bracket EA accordingly.  See Figure 11. 
						

							16Figure 11. Incline Checking of the Thermal Head
17. Set all parameters to factory default values.  Then perform the test printing again.
The printing result should be excellent. 
						

							17 6.0RIBBON
When thermal transfer is selected as print media type, the following adjustment should be
made in accordance with ribbon running condition.  If you have repositioned the thermal
head, it is highly recommended to adjust the ribbon.
6.1Ribbon Adjustment
To understand ribbon adjustment better, refer to the following explanation.
Ribbon running condition is directly related to the condition of the following
components:
·Ribbon supply shaft with friction brake.  Ribbon roll is loaded to this shaft.
The friction brake is provided to eliminate looseness from ribbon.
·Leading shaft to change ribbon running direction.
·Heat lines of thermal head and platen roller.
·Bottom front edge of thermal head.
·Bottom edge and surface of ribbon applicator to change ribbon running
direction.
·Ribbon take-up shaft.  Take-up core is set on this shaft in order to wind
waste ribbon.  Take-up motor powers this shaft.
From the above ribbon components, the ribbon on the printer can be divided into three
parts as shown in Figure 12:
·Part A:  The part of the ribbon between ribbon supply shaft and leading
shaft.
·Part B:  The part of the ribbon between leading shaft and the front edge of
ribbon applicator.
·Part C:  The part of the ribbon between the bottom edge of ribbon
applicator and ribbon take-up shaft. 
						

							18Figure 12. Ribbon Running Condition
Wrinkles in the ribbon are caused by uneven tension of the ribbon within Part B.
Possible caused of uneven tension are:
·The edge of the ribbon applicator does not align properly to the leading shaft.  See
thermal head positioning, Step 8.
·The bottom front edge of the thermal head does not align to the leading shaft.
·Uneven pressure of the thermal head.
·Insufficient or overload pressure of the thermal head.
·Heat shrink of ribbon film.
·Uneven peeling of the ribbon from media (labels).
In some cases, the ribbon condition within Part A causes problems.  Possible causes are:
·Leading shaft does not align to the ribbon supply shaft.
·The friction brake is not strong enough to keep the tension on the ribbon in Part
A. 
						

							19 Ribbon running condition within Part C does not normally cause problems.  However,
ribbon running condition within Part C can help find the solution.  Examining the ribbon
running condition at the bottom edge of the ribbon applicator can indicate adjustments
that may need to be performed.
6.2Running Condition
Make sure of the following prior to the adjustment:
·Use full width media (5.2 in./132 mm) when checking.
·Rotate the head pressure screw clockwise completely.
·Set up the printer with factory default parameters.
1. Select the print data which exhibits even horizontal contrast.  Feed a few blank
labels, then issue about ten media (labels) for inspection of running conditions.
2.Check the ribbon for wrinkles.  If wrinkles are present, stop the media (labels) by 
[PAUSE].  See Figure 13 as an example of wrinkles produced on the bottom right 
side of the ribbon.
Figure 13. Wrinkle On Ribbon 
						

							20 3. Slightly loosen the right hex head screw which fixes the ribbon applicator to the front
side.  Then fix the applicator again.  This gives the right side of the ribbon more
tension by changing position of the ribbon applicator.
Figure 14. Ribbon Application Adjustment
4. Feed some media (labels) until the wrinkles on the ribbon are removed.  Then issue
ten (10) media samples (labels) for inspection.  If the wrinkles are produced again,
repeat the above procedure. 
						

							21 7.0SENSORS
There are four sensors and a switch that detect media (labels), ribbon and thermal head
position.
Figure 15. Location of Sensors and Switch
Sensor Type and Functions:
NOTE:
1. The Media Gap Sensor works with the Black Line Sensor, so both sensors must be positioned in
line.  The Black Line Sensor consists of both direct reflective sensor unit for black line sensing
and photo emitter for the Media Gap Sensor.
2. The Ribbon Sensor works with the reflection plate so that both the surface of the Ribbon Sensor
and the reflection plate have to be parallel to each other.
NAME
Media Gap (Label Gap)
Black Line
Ribbon
Presentation
Head-UpTYPE
Photo receiver and photo emitter.
Direct reflective.
Indirect reflective with reflective plate.
Direct reflective.
Touch sensitive micro switch.FUNCTION
To detect gap of media.
To detect black line on “butt-cut” media
To detect the end of the ribbon.
To detect the condition of issued label in
Presentation Mode (peeled off or remaining)
To detect the setting condition of the thermal
head. 
						

							22 8.0SENSITIVITY ADJUSTMENT
NOTE:
Make sure of the following conditions prior to the adjustment:
·Use full width media (5.2 in./132 mm) when checking.
·Rotate the head pressure screw clockwise fully.
·Both Media Gap and Black Line Sensors locate have to be set in line.  If not, it
can result in media slippage or incorrect printing problems.
 Use “Diagnostics” function in System Parameters to check and adjust sensitivity
of sensors.
 When using “Black Line sensing function”, the sensitivity adjustment must be
performed after the following wire modification:
·Switch Pin 4 (green) with Pin 10 (blue) on CNW4802 connector which is
plugged on CN-8 on the Main Board (TPB-2170).
NOTE:  When the customer wishes to use continuous forms or no gap labels with the Black Line sensing
function, make sure to switch Pin 4 (green) with Pin 10 (blue) of connector CNW4802 which is plugged on
CN-8 on the Main Control Board (TPB-2170).
 The sensitivity of the Ribbon Sensor depends on the color of the ribbon.
Therefore, a readjustment of the sensitivity should be performed whenever the
ribbon color changes.