Sharp MX-M260 MX-M260 MX-M310 Operation Manual - Page 124
Image quality problems
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TROUBLESHOOTING AND MAINTENANCE Image quality problems Problem Copies are too dark or too light. Text is not clear in a copy. Part of the copied image is cut off. Blank copies. Paper is wrinkled or the copied image comes off when the paper surface is rubbed. Copies are smudged or dirty. White or black lines appear copies. Cause and solution The image of the original is too light or too dark. → Select the correct original image type in the exposure setting and adjust the copying exposure. The copying exposure is set to "AUTO". → The "EXPOSURE ADJUSTMENT" system settings (administrator) can be used to adjust the exposure level used for "AUTO" exposure. Consult the administrator of the machine. The original type that is most suitable for the original has not been selected in the copy exposure setting screen. → Change the original image type selection to "AUTO", or manually select the most suitable original image type setting. The correct original type has not been selected in the copy exposure setting screen. → Change the original image type setting to "TEXT". The original was placed in the wrong position. → Place the original in the correct position. When using the document glass, place the original against the far left side. A suitable ratio for the original size and paper size has not been selected. → Use auto ratio selection to obtain the correct ratio for the copy. The tray's paper size setting was not changed when a different size of paper was loaded in the tray. → Be sure to change the tray's paper size setting when loading a different size of paper in the tray. An AB paper size is being used. → When using copy paper that is an AB size, set the original size manually. The original is not placed face up in the RSPF or face down on the document glass. → Place the original face up in the RSPF or face down on the document glass. The paper is outside of the specified size and weight range. → Use copy paper within the specified range. The paper type setting is not correct. → Set the correct paper type. To set the paper type for a tray, see "CHANGING A TRAY'S PAPER TYPE AND PAPER SIZE SETTINGS". Paper is curled or damp. → Do not use curled or wrinkled paper. Replace with dry copy paper. During periods when the machine is not used for a long time, remove the paper from the tray and store it in a dark place in a bag to prevent moisture absorption. The document glass or the underside of the RSPF is dirty. → Clean regularly. The original is smudged or blotchy. → Use a clean original. The scanner glass for the RSPF is dirty. → Clean the long, narrow scanning glass. Page 30 110 30 30 23, 24 31 20 48 23, 24 16 20, 21 142 137 137 122