LG -600 User Manual page 37

2．Ribbon, labels, paper type mismatch or poor quality
3．Labels surface impurities (dust, oil, the process by hand touch, etc.)
4．Print head and printing rubber roller relative position does not fit
5． Uneven pressure on the print head about print content about different shades or
labels deviate
6．Need to clean the print head and printing rubber roller, such as damage to the
need to replace
7．Label detection methods are set incorrectly (die-cut labels, black mark labels,
continuous mode)
8．The print set improperly (thermal paper and ribbon way)
9．Set too small proportion of print content (images, barcode, etc.)
The solution:
1．Increase or decrease the print density。
2．Replace the appropriate ribbon and labels。
3．Adjust the print head position, pay attention to before and after the location and
marking rubber roller needs to maintain a balance。
4．Make sure that the print head holder assembly and the two print head
compression spring deformed or damaged。
5．For label processing reasons, the label edge part may be dirty, edit the label, it
is best to print the contents of pattern on the 3mm or less from the label
surrounding the print from the label margins too close, it may affect the print
quality,appropriate adjustments to。
※ Some of the problems composite, adjust Please note that the
mutual influence。