Pascal Control - Canon iR C6800 Series Service Manual

Chapter 7

7.4.9 PASCAL control

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The machine is designed to execute PASCAL control (image characteristics correction control) to enable the
reproduction of ideal image characteristics, and the execution involves the reader unit mechanisms.
The machine uses the main controller of the printer unit for the control. The printer uses the data stored in the main
controller to generate 3 types of test patterns *1; when the printouts of the test patterns are placed in the reader unit
one after another, the machine reads them in sequence to enable the main controller to execute gradation correction
that will lead to ideal image characteristics.
The machine executes PASCAL control for the following conditions:
in response to a command by the ser
Reader
Test pattern data input
MN-CON
Test pattern data
Printer
output
F-7-24
7-29