Toshiba e-STUDIO453 Service Manual page 136

(4) Original size is determined by the combination of the signals output from each detection point.
Combination charts for size determination of A4 series and LT series are as follows.
[A4 Series]
Size judgement
A3
A4
B4
B5
A4-R
6
A5
B5-R
A5-R
[LT Series]
Size judgement
LD
LT
LG
LT-R
ST
ST-R
Code
1
0
* When the platen sensor is OFF,
• The followings are determined by output signals from the APS sensors.
Size (The combination of the signals satisfy any in the above chart)
: Size is displayed on the control panel and a specific paper or reproduction ratio is selected.
Size retention (The combination of the signals do not satisfy the above chart)
: The latest original size recognized (or no original state) until new paper size is recognized.
No original (Output from all the sensors are "H".)
: Reproduction ratio and paper are not selected.
• Size change is always observed and detected.
• The carriage-1 stays at the standby position even if the reproduction ratio changes corresponding to the
change of the original size.
* When the platen sensor is ON,
The latest original size (or no original state) recognized right before the platen sensor is turned ON is re-
tained regardless of the status the APS sensor output signals.
e-STUDIO350/352/353/450/452/453
SCANNER
APS-C APS-R
0
0
0
1
0
1
0
0
APS-C APS-R
0
0
0
0
1
0
Output signal Original
H Not available
L Available
APS-1
0 0
1 0
0 0
1 0
0 1
1 1
0 1
1 1
APS-2
0 0
1 0
0 1
1 1
1 1
1 1
6 - 14 © 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
APS-2 APS-3
0 0
0 0
1 0
1 0
1 0
1 0
1 1
1 1
APS-3
0
0
0
0
0
1