Table of Contents
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18.3.9
Detection of a new fusing unit..................................................................... 93
18.3.10 PPM control ................................................................................................ 93
18.3.11 Delay control ............................................................................................... 93
19.
Paper exit/switchback section ............................................................................... 94
19.1 Composition ....................................................................................................... 94
19.2 Drive ................................................................................................................... 95
19.3 Operation............................................................................................................ 96
19.3.1
Paper exit control ........................................................................................ 96
20.
Image stabilization control .................................................................................... 97
20.1 Overview ............................................................................................................ 97
20.2 Operation............................................................................................................ 98
20.2.1
IDC registration sensor adjustment control................................................. 98
20.2.2
Max. density adjustment control ................................................................. 98
20.2.3
LD (laser diode) intensity adjustment control.............................................. 98
20.2.4
Gamma correction control .......................................................................... 98
20.3 Operation sequence ........................................................................................... 99
20.4 Operation timing ............................................................................................... 100
21.
Image processing................................................................................................ 103
21.1 Scanner section image processing block diagram ........................................... 103
21.2 Write section image processing block diagram ................................................ 104
22.
Other control ....................................................................................................... 106
22.1 Fan control........................................................................................................ 106
22.1.1
Construction.............................................................................................. 106
22.1.2
Operation .................................................................................................. 107
22.2 Counter control ................................................................................................. 110
22.2.1
Construction.............................................................................................. 110
turned ON......................................................................................................... 111
22.3.1
turned ON ................................................................................................. 111
iv
Theory of operation Ver. 1.0 Sep. 2008
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