Label printer series seiko smart label printer printing speed 100 mms connections usb 20 resolution 300 x 300 dpi barcodes code 39 uccean 128 qr code maxicode eanjan 13 upc a upc e codabar code 128 pdf417 data matrix printing format 54 mm power supply external power adaptor colour grey width 114 mm depth 172 mm height 148 mm weight 049 kg