Device 1 Name: hpaio:/usb/Officejet_J4500_series?serial=CN83K120RF052T Vendor: Hewlett-Packard Model: Officejet_J4500_series Type: all-in-one Option 1 Name: compression Title: Compression Desc: Selects the scanner compression method for faster scans, possibly at the expense of image quality. Type: 3 Unit: 0 Size: 20 Cap: 0 Constraint Type: 3 Constraint: ['None', 'JPEG'] Value: JPEG Option 2 Name: source Title: Scan source Desc: Selects the scan source (such as a document-feeder). Type: 3 Unit: 0 Size: 20 Cap: 0 Constraint Type: 3 Constraint: ['Auto', 'Flatbed', 'ADF'] Value: Auto Option 3 Name: length-measurement Title: Length measurement Desc: Selects how the scanned image length is measured and reported, which is impossible to know in advance for scrollfed scans. Type: 3 Unit: 0 Size: 20 Cap: 0 Constraint Type: 3 Constraint: ['Unknown', 'Approximate', 'Padded'] Value: Padded Option 4 Name: tl-y Title: Top-left y Desc: Top-left y position of scan area. Type: 2 Unit: 3 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (0, 24969216, 0) Value: 0 Option 5 Name: tl-x Title: Top-left x Desc: Top-left x position of scan area. Type: 2 Unit: 3 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (0, 14149222, 0) Value: 0 Option 6 Name: br-x Title: Bottom-right x Desc: Bottom-right x position of scan area. Type: 2 Unit: 3 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (0, 14149222, 0) Value: 14149222 Option 7 Name: batch-scan Title: Batch scan Desc: Enables continuous scanning with automatic document feeder (ADF). Type: 0 Unit: 0 Size: 4 Cap: 0 Constraint Type: 0 Constraint: None Value: 0 Option 8 Name: jpeg-quality Title: JPEG compression factor Desc: Sets the scanner JPEG compression factor. Larger numbers mean better compression, and smaller numbers mean better image quality. Type: 1 Unit: 0 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (0, 100, 0) Value: 10 Option 9 Name: mode Title: Scan mode Desc: Selects the scan mode (e.g., lineart, monochrome, or color). Type: 3 Unit: 0 Size: 20 Cap: 0 Constraint Type: 3 Constraint: ['Lineart', 'Gray', 'Color'] Value: Color Option 10 Name: Title: Geometry Desc: Type: 5 Unit: 0 Size: 0 Cap: 0 Constraint Type: 0 Constraint: None **Failed to get current value for option.** Option 11 Name: resolution Title: Scan resolution Desc: Sets the resolution of the scanned image. Type: 1 Unit: 4 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (100, 1200, 0) Value: 100 Option 12 Name: contrast Title: Contrast Desc: Controls the contrast of the acquired image. Type: 1 Unit: 0 Size: 4 Cap: 0 Constraint Type: 1 Constraint: (0, 100, 0) Value: 50