Apparatus for forming an image on a record medium comprising transport means (10, 13) for causing a record medium to be transported along a transport path within the apparatus so as to be discharged therefrom; a rotatable image-receiving member (1) for receiving the said image; a transfer device (5) adjacent the transport path for transferring the image from the image-receiving member (1) to the record medium; and a fixing device (11) adjacent the transport path for fixing the image on the record medium characterised in that the apparatus is provided on a front side thereof with a door (23) which, when open, provides access to the transport path (21), image-receiving member (1), transfer device (5) and fixing device (11) within the apparatus and which is pivoted around an axis parallel to that of the image-receiving member (1), the arrangement being such that access space for normal operation of the apparatus and the said access to the transport path (21), image-receiving member (1), transfer device (5) and fixing device (11) is only required at the front and top sides of the apparatus. The arrangement is such that any jam can readily be cleared even by an inexperienced user in a natural posture without any fear of his hands being stained and with no risk to the apparatus being damaged. It is also such that the user can reliably exchange a cartridge, preferably employed in the apparatus, in a natural posture; this being achieved by performing almost the same operation as a jam removing operation from the front side of the apparatus from which paper is preferably discharged in normal use.