Image recording apparatus

An image forming apparatus comprising:

• a casing having a front end and a rear end;
• a first tray configured to accommodate a first recording medium;
• a first print engine configured to record a first image on the first recording medium;
• a second tray configured to accommodate a second recording medium;
• a second print engine configured to record a second image on the second recording medium;
• and
• a controller configured to perform:
• receiving image data, the image data including first image data representing the first image and second image data representing the second image;
• executing a first process including a first conveying process and a first recording process, the first conveying process being for conveying the first recording medium from the first tray toward the first print engine along a first path, the first recording process being for recording the first image on the first recording medium by the first print engine;
• executing a second process including a second conveying process and a second recording process, the second conveying process being for conveying the second recording medium from the second tray toward the second print engine along a second path, the second recording process being for recording the second image on the second recording medium by the second print engine, the second path being located between the first path and the rear end of the casing;
• determining whether an error has occurred in the second process;
• and
• in a case where the error has occurred in the second process, stopping the second process while continuing the first process.