Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge

An image forming apparatus comprising:

• a main casing;
• a photosensitive drum rotatable about a drum axis extending in a first direction;
• a developing cartridge comprising a toner casing that can accommodate therein toner, the developing cartridge supplying the toner onto the photosensitive drum, the developing cartridge being detachably attachable to the main casing;
• a transfer unit for transferring the toner that has been supplied onto the photosensitive drum to a sheet;
• a solvent cartridge comprising a solvent casing that can accommodate therein solvent for dissolving the toner, the solvent cartridge being detachably attachable to the main casing independently of the developing cartridge, the solvent cartridge being positioned away from the developing cartridge in the first direction in a state where the developing cartridge and the solvent cartridge are attached to the main casing;
• an applicator applying the solvent to the toner that has been transferred to the sheet,
• wherein the main casing includes:
• a first opening through which the developing cartridge passes when the developing cartridge is attached to the main casing;
• and
• a second opening through which the solvent cartridge passes when the solvent cartridge is attached to the main casing;
• wherein the image forming apparatus further comprises:
• a first cover movable between:
• a first closed position where the first cover closes the first opening;
• and
• a first open position where the first opening is opened;
• a second cover provided independently of the first cover, the second cover being movable between:
• a second closed position where the second cover closes the second opening;
• and
• a second open position where the second opening is opened,
• wherein the first opening and the second opening are positioned at one end portion of the main casing in a second direction crossing the first direction, and
• wherein the developing cartridge and the solvent cartridge are attachable to the main casing in the second direction.

An image forming apparatus comprising:

• a main casing;
• a photosensitive drum rotatable about a drum axis extending in a first direction;
• a developing cartridge comprising a toner casing that can accommodate therein toner, the developing cartridge supplying the toner onto the photosensitive drum, the developing cartridge being detachably attachable to the main casing;
• a transfer unit for transferring the toner that has been supplied onto the photosensitive drum to a sheet;
• a solvent cartridge comprising a solvent casing that can accommodate therein solvent for dissolving the toner, the solvent cartridge being detachably attachable to the main casing independently of the developing cartridge, the solvent cartridge being positioned away from the developing cartridge in the first direction in a state where the developing cartridge and the solvent cartridge are attached to the main casing;
• an applicator applying the solvent to the toner that has been transferred to the sheet;
• a pump for pumping the solvent from the solvent cartridge to the applicator;
• and
• a first circuit board juxtaposed with the solvent cartridge in a second direction crossing the first direction in a state where the solvent cartridge is attached to the main casing,
• wherein the first circuit board is electrically connected to the pump.