Ricoh C211 Service Manual page 436

10. Make-up Mode: SS9500nly
7
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Processing
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Master Processlnq Control
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Main Board
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M. DATA1
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Pattern 1>
Pattern 2>
Pattern 4>
F*
BCD 1>
BCD 2>
BCD 3>
BCD 4>
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M.DATA
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CN406 CNoo
-19
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CN40b CNOO
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C5N406c Noor
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CN406 CNOO
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-6 -6
-7
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'-8 -8:
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~1~406 CN~~
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-14 -14<
'-15 -15:
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Orlglnal Image Data
Reduction * Area
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Clrcult Processing
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Memory
;heet Image
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M.DATA 2
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Thermal Head
10-1. Overall Operation
The command sheet is read twice as fast as the original. The command data is
converted in the A/D converter and is modulated in the master processing circuit. The
modulated command data is reduced to 1/64 and stored in the area memory. The area
memory stores the command sheet area data as area solid fill data.
The image data read by the CCD is also converted and is modulated. The modulated image
data, the stored command area data, and the background pattern are edited in the editing
circuit of the make up control board according to the editing command.
The edited image data is sent to the thermal head control board through the master
processing control board.
When the make-up mode is not selected, the modulated image data that was sent to the
make-up control board is returned to the master processing control board without any
processing.
When the make-up control board is removed, CN407-I 9 is
High and the modulated
image data is sent directly to the thermal head control board.
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