MainWindow 0 0 739 497 739 497 739 497 MainWindow 0 51 device list 181 20 Qt::Horizontal 40 20 0 device information 221 141 311 20 roll count: 221 181 321 20 81 20 scan count: 240 280 111 31 clear roll count 220 20 321 16 Serial number: 220 60 321 16 Firmware number: 220 100 321 16 Speed mode: 220 220 311 16 motor version: flat correct 30 20 131 23 Correct 200 20 111 21 Have not corrected 30 60 431 241 distortion correct 110 20 121 22 Color Gray 330 20 121 22 200 300 600 30 20 81 21 Color mode: 270 20 71 21 Dpi: 320 60 113 20 QLineEdit::Normal 30 60 101 23 Get distortion 170 60 101 23 Set distortion 30 140 411 201 490 200 161 23 161 23 Export test paper 170 100 111 23 Start scan 50 100 111 21 Count distortion: 320 100 113 20 QLineEdit::Normal update firmware 80 60 501 111 online upgrade 110 30 271 22 400 30 91 23 get version list 400 70 91 23 download and upgrade 10 30 91 20 version list 80 190 501 111 local upgrade 10 30 91 20 file path 110 30 271 20 394 30 101 23 open file path 394 70 101 23 upgrade 80 10 108 31 password change 180 90 91 21 old password 180 140 91 21 new password 290 90 191 20 290 140 191 20 350 250 131 31 modify password 290 190 191 20 180 190 91 21 confirm new password Qt::Horizontal 40 20 exit 0 0 739 22