Zebra ZD420 Direct Thermal Transfer Label Bluetooth Printer PLEASE READ

  
Zebra ZD420 Direct Thermal Transfer Label Bluetooth Printer PLEASE READ. PLEASE READ - please see photos of example labels.

There appears to be a blank section which does not print. I have tried different solutions with no success. As you can see the smaller labels are okay (still faint on edges/writing), there are some examples of darker and lighter settings, the lines are perhaps a little blurred/thick.

Could perhaps be fixed by somone or used to print smaller labels. This item is in the category "Computers/Tablets & Networking\Printers, Scanners & Supplies\Printers". The seller is "higge_77" and is located in this country: GB. This item can be shipped to United Kingdom, Antigua and Barbuda, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Norway, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Belize, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Dominica, Guernsey, Gibraltar, Guadeloupe, Grenada, French Guiana, Iceland, Jersey, Jordan, Cambodia, Saint Kitts-Nevis, Saint Lucia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Montserrat, Martinique, Oman, Pakistan, Paraguay, Reunion, Turks and Caicos Islands, Aruba, Saudi Arabia, United Arab Emirates, Chile, Bahamas, Colombia, Costa Rica, Dominican Republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Qatar, El Salvador, Trinidad and Tobago.

1. Input Type: Monochrome
2. Output Type: Black & White
3. Memory: 512 MB
4. MPN: ZD42042-C0EM00EZ
5. Supported Paper Size: A6 (105 x 148 mm)
6. Brand: Zebra
7. Type: Label Printer
8. Unit Type: Unit
9. Technology: Label Printer
10. Maximum Resolution: 203 x 203 DPI
11. Model: ZD420
12. Connectivity: Bluetooth, USB 2.0
13. Features: Thermal
14. Black Print Speed: 6 ips
15. Unit Quantity: 1
16. Product Line: Zebra ZD