Toshiba e-STUDIO 550, Service Manual

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JUNE 2002 © TOSHIBA TEC 6 - 13 e-STUDIO550/650/810 SCANNING SECTION
(4) Original size is determined by the combination of the presense/absence of signals which are output at
each detection point. The combination chart for size determination of A4 series and LT series are as
followed.
[A4 Series]
Size APS-1 APS-2 APS-3 APS-4 APS-5
A3 0 0 0 0 0
A4 0 0 0 0 1
B4 0 0 0 1 0
B5 1 0 0 1 1
A4-R 0 0 1 1 0
A5 1 0 1 1 1
B5-R 0 1 1 1 0
A5-R 0 1 1 1 1
[LT Series]
Size APS-2 APS-3 APS-4 APS-5
LD 0 0 0 0
LT 0 0 0 1
LG 0 0 1 0
LT-R 0 0 1 1
ST 1 0 1 1
ST-R 0 1 1 1
Code Output signal Original
1 H Absent
0 L Present
* 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 recognized.
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 sensor is turned
ON regardless of the state of the APS sensor output signals.