Image forming system

A stencil printer comprising:

• a thermal head which perforates stencil material to make a stencil;
• a printing drum around which the stencil is wound;
• a mounting portion in which a stencil material roll which comprises the stencil material rolled into a roll and is provided with a storage means in which distinguishing information representing whether the stencil material roll is a compatible product is stored is removably installed;
• a read out means which reads out the distinguishing information stored in the storage means of the stencil material roll installed in the mounting portion;
• a control means which controls the amount of energy of the thermal head on the basis of a control information according to the distinguishing information when the distinguishing information read out by the read out means represents that the stencil material roll is a compatible product;
• and
• a control information input means that enables an operator to input control information of the thermal head when the distinguishing information read out from the storage means of the stencil material roll by the read out means represents that the stencil material roll is an incompatible product is further provided,
• wherein the control means controls the amount of energy of the thermal head on the basis of the control information input by the control information input means when the distinguishing information read out from the storage means of the stencil material roll represents that the stencil material roll is an incompatible product.

An image forming system comprising:

• a mounting portion in which an expendable apparatus is provided with a storage means in which distinguishing information representing whether the expendable apparatus is a compatible product is stored is removably installed;
• a read out means which reads out the distinguishing information stored in the storage means of the expendable apparatus installed in the mounting portion;
• a control means which controls operation of a predetermined object to be controlled operation of which is to be controlled in relation to the expendable apparatus on the basis of control information according to the distinguishing information when the distinguishing information read out by the read out means represents that the expendable apparatus is a compatible product, whereby the predetermined object to be controlled is operated by the control means to form an image on the basis of the control information according to the distinguishing information;
• and
• a control information input means that enables an operator to input control information of the object to be controlled when the distinguishing information read out from the storage means of the expendable apparatus by the read out means represents that the expendable apparatus is an incompatible product,
• wherein the control means controls the operation of the object to be controlled on the basis of the control information input by the control information input means when the distinguishing information read out from the storage means of the expendable apparatus represents that the expendable apparatus is an incompatible product.