7. And finally.....
If your new thermal printhead fails to produce a good test image after following the above steps then please contact your supplier.
Too Positive
Dark patches stressing out from the rear edge of the green square (watermarking). These patches have many jagged edges. Plus possibly a dark patch at the front of the grey square,.
SOLUTION: Decrease head angle by 1 or 2 degrees.
Correct Head Angle
Uniform density across the whole of the grey square, with no marks or defects in the green square.
Too Negative
Front or most of the grey square is pale and washed out. Density can suddenly increase in the last third of the square.
SOLUTION: Increase head angle by 1 or 2 degrees.
3461/07/01 ISSUE 2 | PRINTHEAD INSTALLATION & COMMISSIONING SPEC. | DCR No. 26106 |
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