IBM CF Series manual Camera System Diagnostics E, 29 Camera System Statistics

5.1.14 CAMERA SYSTEM DIAGNOSTICS (E)

When you press this option, a display similar to the one shown in figure 5-29 appears. The “n” shows the number of cameras set in Global parameters.

USING n CAMERAS

CAMERA SIZE (PIXELS) [1510] :

Figure 5-29 Camera System Statistics

Enter the camera size or just press <CR> and the menu in figure 5-30 appears.

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E : EXPOSURE MEMORY	NE : NORMALIZE EXPOSURES
G : GAIN MEMORY	NG : NORMALIZE GAIN
D : DISPLAY CALIBRATION MEMORY	F : FILL CALIBRATION MEMORY
T : TAKE LINE	Q : TAKE QUALIFIED LINE
A : AUTOTAKE	V : VIDEO BOARD RESET
L0 : LIGHTS OFF	L1 : LIGHTS ON
U : UNIFORMITY CHECK	K : CALIBRATION CHECK
M : MIRROR CONTROL	P : TEST PATTERN CONTROL
Y : CAMERA DELAY	C : CALIBRATION MEMORY TEST
R : CAMERA RESPONSE CURVES	H : HISTOGRAM
X : EXIT
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Ready

Figure 5-30 Camera System Diagnostics Menu

5.1.14.1 E: Exposure Memory

Exposure in the CF scanner is similar to shutter speed in a conventional camera. The higher the number (the slower shutter speed), the longer the camera is collecting data. This memory stores data telling the camera when to start collecting data. For Example, if you enter “2000” in hexadecimal, the camera starts collecting light reflected from the document and 2000 pixel times later, data is output from the camera.

If you enter <D> and <CR> for “Display”, the content of the Exposure Memory will be displayed, starting from address 0000. This memory contains 64k 8-bit words. They are displayed 320 at a time. To view the next 320, press <D> and <CR> again. To view the memory starting at an address other than 0000, enter D command, followed immediately by the address. You do not need a <CR>. For example, “D2000”.

If you choose <F> for “Fill”, you can fill the memory with a single hexadecimal number you specify. This value will fill the memory, writing over anything already there. If you want to