A printer having a main printer unit 1 an image recording unit 3 and a base unit 2. The image recording unit 3 includes a carriage 25 having an ink head for discharging ink to paper and a guide shaft 26 for slidably guiding the carriage 25. The base unit 2 is disposed opposite the image recording unit 3 and supports the image recording unit 3. A paper transportation path 5 is located between the image recording unit 3 and base unit 2 for conveying paper in a paper transportation direction under the operation of paper feed means The printer has opposite sides and an opening extending from each opposite side in common alignment with the paper transportation direction for manually inserting paper of substantially any size into said paper transportation path from any side and includes a continuous paper holder which is removably attached to said printer for supplying paper continuously to said paper transportation path and a sheet feeder device (ASF 60) which is removably attached to said main printer unit for supplying a plurality of sheets in sequence to said paper transportation path when said continuous paper holder is not supplying paper.