When You Cannot Make Clear Copies

This section describes likely causes of and possible solutions for unclear copies.

Problem	Cause	Solution
Colored lines appear.	The exposure glass or scanning glass is dirty.	Clean them. See "Maintaining Your Machine", About this Machine .
Copies appear dirty.	Image density is too high.	Adjust the image density settings. See "Adjusting Copy Image Density", Copy and Document Server Reference .
Copies appear dirty.	Auto Image Density is not selected.	On the control panel, select [Auto Density].
The reverse side of an original image is copied.	Image density is too high.	Adjust the image density settings. See "Adjusting Copy Image Density", Copy and Document Server Reference .
The reverse side of an original image is copied.	Auto Image Density is not selected.	On the control panel, select [Auto Density].
A shadow appears on copies if you use pasted originals.	Image density is too high.	Adjust the image density settings. See "Adjusting Copy Image Density", Copy and Document Server Reference . Change the orientation of the original. Put mending tape on the pasted part.
The same copy area is dirty whenever making copies.	The exposure glass, scanning glass, or ADF is dirty.	Clean them. See "Maintaining Your Machine", About This Machine .
The same copy area is dirty whenever making copies.	The original that has already been printed is scanned. Original Type is set to [Text / Photo], and an original with text and photographs that can hardly be distinguished from each other is loaded.	On the control panel, press [Generation Copy], and then begin copying.
Copies are too light.	Image density is too light.	Adjust the image density settings. See "Adjusting Copy Image Density", Copy and Document Server Reference .
Copies are too light.	A light copy may result when you use damp or rough grain paper.	Use recommended paper only and be sure its storage environment meets the recommended temperature and humidity conditions. For details about recommended paper and the proper way to store it, see "Recommended Paper Sizes and Types" and "Paper Storage", About This Machine .
Parts of images are not copied.	The original is not set correctly.	Set originals correctly. See "Placing Originals", Copy and Document Server Reference .
Parts of images are not copied.	The correct paper size is not selected.	Select the proper paper size.
Parts of images are not copied.	Even if you place originals in the ADF correctly, margin of a few millimeters on all four sides of the original might not be copied.	Use "Create Margin" function to reduce the image of its original size. For details about missing image area, see "Missing Image Area", Copy and Document Server Reference .
Images appear only partially.	The paper is damp.	Use paper that has been stored in the recommended temperature and humidity condition. For details about the proper way to store it, see "Paper Storage", About This Machine .
Black lines appear.	The exposure glass or scanning glass is dirty.	Clean them. See "Maintaining Your Machine", About This Machine .
White lines appear.	The exposure glass or scanning glass is dirty.	Clean them. See "Maintaining Your Machine", About This Machine .
White lines appear.	The dustproof glass is dirty.	Clean the dustproof glass. See "Cleaning the Dustproof Glass", About This Machine .
Copies are blank.	The original is not set correctly.	When using the exposure glass, face the originals down. When using the ADF, face them up.
A moiré pattern is produced on copies.	Your original has a dot pattern image or many lines.	Place the original on the exposure glass at a slight angle.
Black spots appear on the copy of a photographic print.	Because of high humidity, the photographic print has stuck to the exposure glass.	Place the print on the exposure glass in either of the following ways: Place an OHP transparency on the exposure glass, and then place the print on the OHP transparency. Place the print on the exposure glass, and then place two or three sheets of white paper on it. Leave the ADF open when copying.
White stripes appear on the OHP.	Fragments of paper are stuck to the OHP.	Use a dry cloth to wipe any paper fragments off the back of the OHP.
The image on the back side of duplex copies has mottled blank patches or is smudged.	Missing patches and smudges are caused by moisture leaking from the paper.	Do not install the machine in areas that are susceptible to low temperatures. Use paper that has been stored where temperature and humidity conditions meet the limitations we recommend. For details about the paper storage conditions we recommend, see "Paper Storage", About This Machine . Install the Optional anti-humidity heater. For details about the anti-humidity heater, contact your service representative.