Chapter 44-101) Standby stateOriginal sensor: Turns off.F-4-162) The copyboard cover opens (at an angle of more than 30o).Original sensor: Turns off.F-4-173) The copyboard cover is closed (at an angle of 30 deg).Original sensor: Turns on and original size identification process 1 is performed.F-4-184) The copyboard cover is closed (at an angle of more than 5 deg but less than 30 deg)Original sensor: Turns on and original size identification process 2 is performed.F-4-195) The original cover is closed (at an angle of 5 deg or less)The original size is identified.Original sensor: Turns off.In identifying the original size, the data obtained in the original size identification process 1 is compared with the data obtained in the original size identificationprocess 2 to check whether these two pieces of data are identical.Note that a wrong original size may be identified because the sensor output level does not change in the following cases:- When the original is A3-sized black- When the original is a book (its thickness does not allow the copyboard cover to close fully, making it difficult to detect the sensor level change).- When the copyboard cover is not closed fully (the sensor level change is not detected after lapse of the above time-out time)F-4-20Reader unitCopyboard coverOriginal sensor 3Copyboard glassOriginal sensor 4Original sensor 2Original sensor 1Original sensor 3Original sensor 4Original sensor 2Original sensor 130Original sensor 2Original sensor 1Original (A4R)Original sensor 3/4 Original sensor 1/2Original sensor 4Original sensor 35Original sensor 2Original sensor 1Original (A4R)Original sensor 3/4 Original sensor 1/2Original sensor 4Original sensor 3Change absentChange presentOriginal sensor 2Original sensor 1Original (A4R)Original sensor 4Original sensor 3