4-2Notice:z Do not interrupt the calibration sequence or try to shut off the device while it iscalibrating. If you stop the calibration before it has completed, a calibration error mayoccur. As a result, when you next power up the unit E06 may be displayed on the LCDscreen. If this happens, please calibrate the scanner again.z Calibrate the scanner only when the image looks fuzzy or white color needs adjustment.z Ensure the battery is fully charged.z Ensure the memory card is inserted.z Keep the calibration sheet from dust and debris. Any dirt may make the calibration chartinvalid or impact the calibration result.Use only the included calibration sheet to calibrate the scanner.z4.2 Clean the rollers and glassif vertical lines or stripes appear on the scanned image, it is possible that there is dust ordebris on the rollers or the glass. Clean the rollers and glass with included cleaning cloth.Use only the included cleaning cloth to clean the scanner glass.Cleaning steps:1. Turn the scanner over to reveal the rollers and glass.2. Wipe the rollers and the glass with the included cleaning cloth as illustrated.RollersGlassNote:z Adding some isopropyl alcohol (95%) on the cleaning cloth is more efficient whencleaning the rollers.z Do not use any solvents or corrosive liquid (i.e., alcohol, kerosene, etc.) to clean anypart of the scanner, otherwise the plastic material will be permanently damaged.z Make sure the surface of the document or photo doesn’t have any paper clips, etc. orthis could damage the scanner glass lens.