pos thermal paper with black positioning mark

{"cid":"91199076","title":"Portable POS Wireless Bluetooth Mobile Thermal Printer","imgUrl":"https:\/\/img.chinax.com\/nimg\/2f\/88\/9f2d3ce5a1ee48af4269a3088218-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Wisecard","Model Number":"T30","Minimum Order Quantity":"Negotiable","Delivery Time":"1-4 weeks","Certification":"CE Rohs","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"30000 Set\/Sets per Month","Packaging Details":"export carton","Paper roll":"58mm","color":"Dark","Interface type":"Bluetooth+USB,USB+android and IOS bluetooth system","Style":"Black And White,Color","Use":"Document Printer","Max paper size":"58mm","Black print speed":"90mm\/sec","Products status":"Stock"}}

{"cid":"91202388","title":"55mm To 80mm POS CPCL TSPL Mobile Label Printer With Rechargeable Battery","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/d6\/55cf27bd23cb1dda71eec863a0a4-200x200-1.jpg","attrs":{"Brand Name":"Luckydoor","Model Number":"M-80F","Minimum Order Quantity":"1pc","Delivery Time":"5-8 working days","Certification":"CE FCC Rohs","Place of Origin":"Made in China","Payment Terms":"Western Union, T\/T, ","Supply Ability":"20K-30Kpcs \/ month","Packaging Details":"Single standard packing box and carton","Materials":"ABS+Pc","Resolution":"203 DPI","Paper type":"Roll","Paper width":"80mm","Battery":"2000 mAh","Input":"DC7.4V","Print type":"Direct line thermal"}}