Image forming system

1. An image forming system comprising:

an image forming apparatus including an image forming unit capable of forming a toner image on a recording material having a pressure-sensitive adhesive layer on a surface thereof and a fixing unit configured to fix the toner image on the recording material;

a folding processing portion provided on a side downstream of the image forming apparatus with respect to a feeding direction of the recording material and configured to fold the recording material, on which the toner image is fixed by the fixing unit, in a manner such that the surface where the pressure-sensitive adhesive layer is an inside of the recording material; and

a pressure-bonding portion provided on a side downstream of the folding processing portion with respect to the feeding direction and configured to pressure-bond the recording material folded by the folding processing portion,

wherein a first recording material having a first basis weight is fixed at a first temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a first period,

wherein a second recording material having a second basis weight is fixed at a second temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a second period, and

wherein the second basis weight is larger than the first basis weight, the second temperature is higher than the first temperature, and the second period is longer than the first period.

2. An image forming apparatus according to claim 1 , further comprising:

a first feeding path in which a length of a feeding passage from the fixing unit to the pressure-bond portion through the folding processing portion is a first length, and

a second feeding path in which a length of a feeding passage is a second length longer than the first length,

wherein the first recording material is fed along the first feeding path, and the second recording material is fed along the second feeding path.

3. An image forming system according to claim 1 , wherein the first recording material is fixed by the fixing unit and then is fed at a first feeding speed,

wherein the second recording material is fixedly by the fixing unit and then is fed at a second feeding speed, and

wherein the second feeding speed is slower than the first feeding speed.

4. An image forming system according to claim 1 , wherein the first recording material is fixed by the fixing unit, and thereafter, feeding of the first recording material is stopped for a third period and then the first recording material is fed to the pressure-bond portion,

wherein the second recording material is fixed by the fixing unit, and thereafter, feeding of the second recording material is stopped for a fourth period and then the second recording material is fed to the pressure-bonding portion, and

wherein the fourth period is longer than the third period.

5. An image forming system according to claim 2 , wherein the first feeding path includes a first passage portion along which the recording material is fed and the folding processing portion on a side downstream of the first passage portion with respect to the feeding direction,

wherein the second feeding path includes a second passage portion along which the recording material is fed and the feeding processing portion on a side downstream of the second passage portion with respect to the feeding direction, and

wherein the second passage portion is longer than the first passage portion in length of a passage along which the recording material is fed.

6. An image forming system comprising:

an image forming apparatus including an image forming unit capable of forming a toner image on a recording material having a pressure-sensitive adhesive layer on a surface thereof and a fixing unit configured to fix the toner image on the recording material;

a folding processing portion provided on a side downstream of the image forming apparatus with respect to a feeding direction of the recording material and configured to fold the recording material, on which the toner image is fixed by the fixing unit, in a manner such that the surface where the pressure-sensitive adhesive layer is an inside of the recording material;

a pressure-bonding portion provided on a side downstream of the folding processing portion with respect to the feeding direction and configured to pressure-bond the recording material folded by the folding processing portion, and

a cooling unit configured to cool the recording material in a feeding passage from the fixing unit to the pressure-bonding portion through the folding processing portion,

wherein a first recording material having a first basis weight is fixed at a first temperature by the fixing unit, and thereafter, a first cooling operation is performed by the cooling unit and then the first recording material is pressure-bonded by the pressure-bonding portion,

wherein a second recording material having a second basis weight is fixed at a second temperature by the fixing unit, and thereafter, a second cooling operation is performed by the cooling unit and then the second recording material is pressure-bonded by the pressure-bonding portion,

wherein the second basis weight is larger than the first basis weight and the second temperature is higher than the first temperature, and

wherein in the first cooling operation, the cooling unit is driven at a first driving speed or is not driven, and in the second cooling operation, the cooling unit is driven at a second driving speed faster than the first driving speed.

7. An image forming system according to claim 6 , wherein the cooling unit is a fan for blowing air toward the recording material.

8. An image forming system comprising:

an image forming apparatus including an image forming unit capable of forming a toner image on a recording material having a pressure-sensitive adhesive layer on a surface thereof and a fixing unit configured to fix the toner image on the recording material;

a folding processing portion provided on a side downstream of the image forming apparatus with respect to a feeding direction of the recording material and configured to fold the recording material, on which the toner image is fixed by the fixing unit, in a manner such that the surface where the pressure-sensitive adhesive layer is an inside of the recording material; and

a pressure-bonding portion provided on a side downstream of the folding processing portion with respect to the feeding direction and configured to pressure-bond the recording material folded by the folding processing portion, wherein the pressure-bonding portion includes a first rotatable member, a second rotatable member configured to form a nip in which the recording material is pressure-bonded by being fed and nipped, in cooperation with the first rotatable member, and a temperature detecting portion configured to detect a temperature of the first rotatable member,

wherein a first recording material having a first basis weight is fixed at a first temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a first period,

wherein a second recording material having a second basis weight is fixed at a second temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after the lapse of the first period in a case that the temperature detected by the temperature detecting portion is a first detection temperature, and is fixed at the second temperature by the fixing unit and then is pressure-bonded by the pressure-bonding portion after a lapse of a second period in a case that the temperature detected by the temperature detecting portion is a second detection temperature, and

wherein the second basis weight is larger than the first basis weight, the second temperature is higher than the first temperature, the second detection temperature is higher than the first detection temperature, and the second period is longer than the first period.

9. An image forming system according to claim 8 , wherein in a case that the temperature detected by the temperature detecting portion is a third detection temperature higher than the second detection temperature, an image forming job during execution is stopped.