1.5 User Guidance Items
This section contains important information regarding efficient operation of the machine.
1.5.1 Guidance items prior to the installation
Items requiring user approval after explanation. This has to be done before machine installation.
Paper to use
1. We recommend using neutral paper as copy paper to prevent abnormal images. Some acid
papers contain talc, and this white powder will appear on the OPC surface as spots. This
causes abnormal copies, which have dirty spots on the background.
2. We recommend using lengthwise grain in all cases to prevent creased copies.
How the original influences copy images
1. In patched originals, shadows around the patched part appear on copies as black lines.
2. In OHP originals, drawn pictures and characters are copied double.
Smoothing original curls
To avoid transport trouble, advise users to correct large curls before setting the original. Refer to
the illustrations and information given below.
1.
The original cannot be transported if it curls (face curl).
2. The original cannot be transported if it curls down (back curl) 10 mm or more.
Original to use
There are some types of paper that should not to be used as originals with the ADF. The following
are some examples:
1. Dog-eared, torn, or creased paper
2. Coated paper (carbon paper, thermal paper, etc.)
3. Curled paper
4. Originals that are glued or taped
Face curl (3 mm or less)
No curl is acceptable for thick
originals of 65 g/m
2
or heavier.
Back curl (10 mm or less)
User Guidance Items 1 July 1994
1-18
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