Image forming apparatus with first casing, second casing, and third casing provided between first and second casings

An image forming apparatus for forming an image on a recording material, said image forming apparatus comprising:

• a first casing including a transfer unit constituted to transfer a toner image formed on an image bearing member to the recording material and a first discharging port constituted to discharge the recording material, on which the toner image is formed by said transfer unit, from said first casing;
• a second casing including a first receiving port constituted to receive the recording material on which the toner image is formed by said transfer unit and a fixing unit constituted to fix the toner image onto the recording material, a height from an installing surface on which said image forming apparatus is installed to said first receiving port in a vertical direction being different from a height from said installing surface to said first discharging port in the vertical direction;
• and
• a third casing provided between said first casing and said second casing, and including a second receiving port constituted to receive the recording material discharged from said first discharging port, a second discharging port constituted to discharge the recording material from said third casing and to deliver the recording material received from said second receiving port to said first receiving port, and an intermediary feeding member provided obliquely in the vertical direction from said second receiving port to said second discharging port,
• wherein said first casing includes a discharging belt protruding from said first discharging port and intruding into said second receiving port,
• wherein said fixing unit includes a pair of rotatable members constituted to form a fixing nip portion for fixing the toner image on the recording material received from said first receiving port,
• wherein said second casing includes a guide portion constituted to guide an under surface of the recording material toward said fixing nip portion,
• wherein said intermediary feeding member includes a feeding belt constituted to feed the recording material fed by said discharging belt toward said guide portion,
• wherein said an end portion of an upstream side of a recording material feeding surface of said feeding belt with respect to a feeding direction is positioned below an end portion of a downstream side of said recording material feeding surface of said discharging belt in the vertical direction,
• wherein an end portion of a downstream side of said recording material feeding surface of said feeding belt with respect to the feeding direction is protruded from said second discharging port and intruded into said first receiving port, and
• wherein an end portion of an upstream side of said guide portion with respect to the feeding direction is positioned below said end portion of said downstream side of said recording material feeding surface of said feeding belt in the vertical direction.

An image forming apparatus for forming an image on a recording material, said image forming apparatus comprising:

• a first casing including a transfer unit constituted to transfer a toner image formed on an image bearing member to the recording material and a first discharging port constituted to discharge the recording material, on which the toner image is formed by said transfer unit, from said first casing;
• a second casing including a first receiving port constituted to receive the recording material on which the toner image is formed by said transfer unit and a fixing unit constituted to fix the toner image onto the recording material, a height from an installing surface on which said image forming apparatus is installed to said first receiving port in a vertical direction being different from a height from said installing surface to said first discharging port in the vertical direction;
• and
• a third casing provided between said first casing and said second casing, and including a second receiving port constituted to receive the recording material discharged from said first discharging port, a second discharging port constituted to discharge the recording material from said third casing and to deliver the recording material received from said second receiving port to said first receiving port, and an intermediary feeding member provided obliquely in the vertical direction from said second receiving port to said second discharging port,
• wherein said third casing includes a third adjusting unit constituted to adjust an installing position of said intermediary feeding member in a height direction, and
• wherein said third adjusting unit includes (1) a second elongate hole provided in one of a frame of said third casing and said intermediary feeding member and of which longitudinal direction is the vertical direction, (2) a second shaft member provided on the other of the frame of said third casing and said intermediary feeding member, and engaging with said second elongate hole, and (3) a second fixing portion constituted to fix a relative position between said second elongate hole and said second shaft member.