-- card: 5068 from stack: in
-- bmap block id: 5204
-- flags: 0000
-- background id: 7909
-- name: Charge
----- HyperTalk script -----
on openCard
  hide menuBar
  hide card field "Message Center 3"
  hide card field "Message Center 2"
  hide card field "Message Center"
  hide card button "Go Back"
  hide card button "Next ..."
  hide card button id 7
  show card button "Text"
end openCard

on closeCard
  hide card field "Cover All"
  hide card button "Self-Check"
  hide card field "Message Center 3"
  hide card field "Message Center 2"
  hide card field "Message Center"
  hide card button "Go Back"
  hide card button "Next ..."
  hide card button id 7
  show card button "Text"
  set hilite of background button "The System" to false
  set hilite of background button "How It Works" to true
  set hilite of background button "Scan. Concepts" to false
  set hilite of background button "File Formats" to false
end closeCard




-- part 1 (field)
-- low flags: 81
-- high flags: 2004
-- rect: left=14 top=77 right=252 bottom=203
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Message Center


-- part 2 (button)
-- low flags: 80
-- high flags: A003
-- rect: left=124 top=283 right=304 bottom=194
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Next ...
----- HyperTalk script -----
on mouseUp
  hide card field "Message Center"
  hide card field "Message Center 3"
  show card field "Message Center 2"
  show card button id 7
  hide card button "Next ..."
end mouseUp



-- part 3 (button)
-- low flags: 80
-- high flags: A003
-- rect: left=34 top=283 right=304 bottom=104
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Go Back
----- HyperTalk script -----
on mouseUp
  hide card field "Message Center 3"
  hide card field "Message Center 2"
  hide card field "Message Center"
  hide card button "Go Back"
  hide card button "Next ..."
  hide card button id 7
  show card button "Text"

end mouseUp



-- part 4 (field)
-- low flags: 81
-- high flags: 2004
-- rect: left=14 top=77 right=252 bottom=203
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Message Center 2


-- part 5 (button)
-- low flags: 00
-- high flags: A003
-- rect: left=124 top=283 right=304 bottom=194
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Text
----- HyperTalk script -----
on mouseUp
  hide card field "Message Center 2"
  show card field "Message Center"
  show card button "Go Back"
  show card button "Next ..."
  hide card button "Text"
end mouseUp



-- part 7 (button)
-- low flags: 80
-- high flags: A003
-- rect: left=124 top=283 right=304 bottom=194
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Next ...
----- HyperTalk script -----
on mouseUp
  hide card field "Message Center"
  hide card field "Message Center 2"
  show card field "Message Center 3"
  hide card button id 7
  show card button "Go Back"
end mouseUp



-- part 8 (field)
-- low flags: 81
-- high flags: 2004
-- rect: left=14 top=77 right=252 bottom=203
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Message Center 3


-- part 9 (field)
-- low flags: 81
-- high flags: 0001
-- rect: left=6 top=272 right=310 bottom=510
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Cover All


-- part 10 (button)
-- low flags: 80
-- high flags: A004
-- rect: left=1 top=315 right=340 bottom=511
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Self-Check
----- HyperTalk script -----
on mouseUp
  visual iris close
  hide card button "Self-Check"
  hide card field "Cover All"
  pop card
end mouseUp



-- part contents for card part 1
----- text -----
The charge coupled device board (CCD), transfers the analog signals from the optical mechanism, one line at at time, to the DIPP on the main logic board.
The CCD board contains a series of light-sensitive capacitors, called elements.  

-- part contents for card part 4
----- text -----
There are 2592 elements arranged horizontally on the CCD, about the size of one scan line.  While the optical mechanism is returning to the beginning of the next line, the line previously scanned is shifted out of the CCD into the DIPP.

-- part contents for card part 8
----- text -----
Digital circuitry  is capable of recording  black and white.  Because the CCD is an analog device, it can record 14 levels of gray in addition to black and white.