auto skip blank wall 3d printer

{"cid":"91201008","title":"2880dpi Digital Wall Printing Machine , 63HZ 3D Wall Inkjet Printer","imgUrl":"https:\/\/img.ismap.com\/nimg\/59\/17\/b3aff1224cd7773cc36190397ec5-200x200-1.jpg","attrs":{"Price":"1500US dollars","Brand Name":"bcx","Model Number":"bcx\u20140022","Minimum Order Quantity":"1","Delivery Time":"8","Certification":"ce","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"99","Packaging Details":"specialized shatterproof packing","Dimensions(l*w*h)":"120CM*100CM*79CM","Application":"cartons"}}

{"cid":"91147779","title":"3D Intelligent Auto Vertical Wall Printer , Personalized Inkjet Wall Mural Printer","imgUrl":"https:\/\/img.ismap.com\/nimg\/88\/c8\/c840ba475e96b231753620af64a5-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Perfect Laser","Model Number":"PE-S25B","Minimum Order Quantity":"1 Unit","Delivery Time":"3-5 Working Days","Certification":"CE \/ ISO \/ SGS \/ TUV","Place of Origin":"China","Payment Terms":"T\/T, L\/C, PayPal, Western Union","Supply Ability":"3000 Unit per Month","Packaging Details":"Sea-Worthy Packing or Air-Worthy Packing","Ink":"Special ink for synthetic pigment wall painting","Assembly method":"Self steering fastener, pulley, track fastener, quick disassembly and assembly","Control mode":"Wired handle, wired control","Motor technology":"DC brushless servo motor, vector positioning technology, five star grating","Feeding system":"Negative pressure automatic feeding, 340 ml pigment library, multi-color one, special color for, with a sealed plug and dust cover","Painting speed":"High, medium, low, three-speed adjustable","File resolution":"360*720dpi or 720*720dpi or 720*1080dpi or 720*1440dpi","Actual print size":"Height 2100mm, wide width can be extended","Power Supply":"AC110V\uff0890-132V\uff09\/AC220V\uff08180-264V\uff09AC,47-63HZ","Power consumption":"No-load 20W, general 75W, Max to 250W"}}