Transmission device capable of printing out transmission maintenance report

A program storage medium storing a program of controlling a transmission device including a frame defining an internal space, the program comprising:

• a reception program for receiving image data;
• a buffer memory program for temporarily storing the image data into a buffer memory;
• an information memory program for storing managing data relating to a managing information about the image data into an information memory;
• a first print program for printing an imagebased on the image data, and an indication mark when the image data is received on a recording medium;
• a first detection program for detecting the indication mark at a predetermined position within the internal space printed on the recording medium at an indicator position;
• a first determining program for determining whether the indication mark is acceptable or unacceptable;
• a second detection program for attempting to detect external light at the predetermined position;
• a second determining program for determining whether or not external light is detected at the predetermined position;
• and
• a storing program for storing the image data into a backup memory in response to at least one of a detection result relating to the indication mark and a detection result relating to external light.

A method of controlling a transmission device including a frame defining an internal space, the method comprising the steps of:

• receiving image data;
• temporarily storing the image data into a buffer memory;
• storing managing data relating to a managing information about the image data into an information memory;
• printing an image based on the image data and an indication mark when the image data is received on a recording medium;
• detecting the indication mark at a predetermined position within the internal space printed on the recording medium at an indicator position;
• determining whether the indication mark is detected as acceptable or unacceptable;
• attempting to detect external light at the predetermined position;
• determining whether or not external light is detected at the predetermined position;
• and
• storing the image data into a backup memory in response to at least one of a detection result relating to the indication mark and a detection result relating to external light.