VueScan uses in-scanner JPEG compression with this scanner to scan faster. You can turn this off by setting 'Input | Fine mode'. HP sold this scanner in some countries as the Officejet J4500 / Officejet J4524 / Officejet J4525 / Officejet J4535 / Officejet J4540 / Officejet J4550 / Officejet J4560 / Officejet J4580c / Officejet J4585.