Toshiba e-STUDIO350, Service Manual, Page: 122 / 286

e-STUDIO350/450 SCANNER 6 - 14 November 2003 © TOSHIBA TEC
6
(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.
* 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.
APS-2
0
0
1
1
1
1
1
1
APS-1
0
0
0
0
1
1
1
1
APS-C
0
0
0
1
0
1
0
0
APS-R
0
1
0
1
0
1
0
1
APS-3
0
0
0
0
0
0
1
1
Size judgement
A3
A4
B4
B5
A4-R
A5
B5-R
A5-R
[A4 Series]
APS-2
0
0
1
1
1
1
APS-C
0
0
0
0
1
0
APS-R
0
1
0
1
1
1
APS-3
0
0
0
0
0
1
Size judgement
LD
LT
LG
LT-R
ST
ST-R
[LT Series]
Code
1
0
Output signal
H
L
Original
Not available
Available