Image scanning apparatus, method for controlling image scanning apparatus, and storage medium

A method for controlling an image scanning apparatus configured to transmit original document image data by storing, sequentially in a buffer, line data obtained by line-by-line scanning of an original document and transmitting the stored line data to a host computer sequentially line by line, the method comprising:

• detecting whether an apparatus status of the image scanning apparatus is normal;
• and
• performing control to transmit original document image data including notification image data to the host computer in a case where it is detected that the apparatus status of the image scanning apparatus is not normal during processing executed in response to a scan command received from the host computer, the notification image data being a notification of an error occurrence.

A non-transitory computer readable storage medium storing a program for causing a computer to perform an image scanning method of transmitting original document image data by storing, sequentially in a buffer, line data obtained by line-by-line scanning of an original document and transmitting the stored line data to a host computer sequentially line by line, the method comprising:

• detecting whether an apparatus status of the image scanning apparatus is normal;
• and
• performing control to transmit original document image data including notification image data to the host computer in a case where it is detected that the apparatus status of the image scanning apparatus is not normal during processing executed in response to a scan command received from the host computer, the notification image data being a notification of an error occurrence.