Sharpness/Filter Processing; Anti-Counterfeit Mechanism; Counterfeit Tracing Mechanism; Bank Note Detection Mechanism - Canon 1130 Service Manual

CHAPTER 4 IMAGE PROCESSING SYSTEM
3. Shift
a. Center
b. Left/right bind
c. Free shift
4. Mirror Image
5. Image Repeat
N. Sharpness/Filter Processing
Sharpness/filter processing is arithmetic processing performed to generate sharp or soft images
according to the settings selected on the control panel (copying mode, sharpness strong/weak).
When "sharpness weak" is selected, the changes in image density are evened out to produce
"soft" images.
When "sharpness strong" is selected, the changes in image density are emphasized to produce
sharp images.
Part 2>Chapter 3>2.8
O. Anti-Counterfeit Mechanism
The copier is equipped with the following two mechanisms to prevent the production of
counterfeit bank notes and certificates:

1. Counterfeit Tracing Mechanism

The ID number stored in the copier is printed on all copies. The number is not visible to the
eye, and any copy of a bank note or certificate can be traced to the copier used to make it.

2. Bank Note Detection Mechanism

• If the copier identifies an original as being one of the bank notes stored in its memory, it
turns out all output as solid black copies.
• If the copier finds out that a bank note has been inserted during continuous copying mode,
it will stop operation.
• If the copier identifies the original as being one of the bank notes stored in its memory, it
will not generate video signals otherwise generated and sent to an IPU or controller devices.
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COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.1 JAN. 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)