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March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 SCANNING SECTION
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4) Original size is determined by the combination of the signals output from each detection point. Com-
bination charts for size determination of A4 series and LT series are as followed.
* When the APS operation sensor is OFF;
• The following points are determined by the output signals from APS sensors
- Size (The combination of the signals satisfy the above chart)
: Size is displayed on the control panel and an appropriate paper and reproduction ratio are
selected.
- Size retention (The combination of the signals do not satisfy the above chart)
: Retains the latest original size recognized (or no original state) until a new paper size is rec-
ognized.
- No original (output from all the sensors are “1”.)
: Reproduction ratio and paper size are not selected.
• Size change is always observed and detected.
• Carriage-1 stays at the standby position even if the reproduction ratio changes corresponding to
the change of the original size.
* When the APS operation sensor is ON;
Retains the latest original size (or no original state) recognized right before the APS operation sen-
sor is turned ON regardless of the state of the APS sensor output signals.
[A4 Series]
Size
judgement
APS-1 APS-2 APS-3 APS-C APS-R
A3 0 0 0 0 0
A4 0 0 0 0 1
B4 0 1 0 0 0
B5 0 1 0 0 1
A4-R 1 1 0 0 0
A5 1 1 0 0 1
B5-R 1 1 1 0 0
A5-R 1 1 1 0 1
[LT Series]
Size
judgement
APS-2 APS-3 APS-C APS-R
LD 0 0 0 0
LT 0 0 0 1
LG 1 0 0 0
LT-R 1 0 0 1
ST 1 0 1 1
ST-R 1 1 0 1
Code Output signal Original
1 H Not available
0 L Available
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