Toner container having specific dimensions and image forming system
A toner container is provided with a bag member made of flexible film material and a discharging member connected to the bag member and configured to discharge toner from an accommodating space to an outside. When a length from an opposing surface of the discharging member to an end portion in an opposite side of the opposing surface of the bag member in a first direction is defined as Xmax, and in a case in which a position X (0≤X≤Xmax) using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in a second direction is defined as Y and a length of the bag member on the plane in a third direction is defined as Z, in a case in which Z is Z 0 in X=0, Xmax>Y≥Z in a range of 0≤X≤Xmax, 0.8×Z 0 ≤Z≤1.2×Z 0 in the range of 0≤X≤Xmax, and Y≤2×Z in a range of 0≤X<0.5×Xmax.
1 . A toner container mountable to and demountable from an image forming apparatus, the toner container comprising:
a bag member made of flexible film material, the bag member including (i) a side surface portion configured to form an accommodating space for accommodating toner inside thereof and extending in a first direction and (ii) a bottom portion configured to close the accommodating space from a first side in the first direction; and
a discharging member connected to the bag member and configured to discharge the toner from the accommodating space to outside of the toner container, the discharging member including (i) an opposing surface configured to close the accommodating space from a second side of the bag member in the first direction and opposed to the bottom portion, (ii) a receiving opening provided in the opposing surface and configured to receive the toner inside the accommodating space, and (iii) a discharging opening communicating with the receiving opening and configured to discharge the toner received via the receiving opening,
wherein, when directions perpendicular to the first direction and perpendicular to each other are defined as a second direction and a third direction, a length from the opposing surface to an end in an opposite side of the opposing surface of the bag member in the first direction is defined as Xmax, in a case in which a position X, where 0≤ X≤Xmax, using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in the second direction is defined as Y, and a length of the bag member on the plane in the third direction is defined as Z, and in a case in which Z is ZO in X=0, then:
X
max
>
Y
≧
Z
in
a
range
of
0
≦
X
≦
X
max
,
0.8
×
Z
0
≦
Z
≦
1.2
×
Z
0
in
the
range
of
0
≦
X
≦
X
max
,
and
Y
≦
2
×
Z
in
a
range
of
0
≦
X
<
0.5
×
X
max
.
2 . A toner container according to claim 1 , wherein in a case in which Y is YO in X=0, YO×ZO≤Y×Z≤2.5×Y 0 ×ZO in a range of 0≤X<0.5×Xmax.
3 . A toner container according to claim 1 , wherein Z≤0.9Y in the range of
0≤X<0.5×Xmax.
4 . A toner container according to claim 1 , wherein, in a case in which Y is YO in X=0 and a length of the opposing surface in the second direction is Yc, then
1≤YO/Yc≤1.5.
5 . A toner container according to claim 1 , wherein, in a case in which Y is YO in X=0, YO≤Y≤2.5× Y 0 and Z=30 mm in the range of 0≤X≤Xmax.
6 . A toner container according to claim 1 , wherein the bag member includes a taper portion formed so as to decrease a cross sectional area of the bag member in a cross-section perpendicular to the first direction toward the opposing surface of the discharging member in the first direction.
7 . A toner container according to claim 6 , wherein a rate of decrease of Z in the taper portion toward a side of the discharging member in the first direction is less than a rate of decrease of Y in the taper portion toward the side of the discharging member in the first direction.
8 . A toner container according to claim 6 , wherein a minimum value of a geometrical moment of inertia in the cross section of the bag member and the accommodating space on the plane perpendicular to the first direction is 40% or more of a maximum value of the geometrical moment of inertia.
9 . A toner container according to claim 6 , wherein a minimum value of section modulus in the cross section of the bag member and the accommodating space on the plane perpendicular to the first direction is 47% or more of a maximum value of the section modulus.
10 . A toner container according to claim 1 , wherein the side surface portion is made of two film materials welded to each other in side edges at both sides in the second direction, and
wherein the bottom portion is made of one film material disposed between the two film materials and welded to each of the two films.
11 . A toner container according to claim 10 , wherein each of the opposing surfaces of the discharge member and the bottom portion of the bag member is a spindle shape having a major axis in the second direction as viewed in the first direction.
12 . A toner container according to claim 11 , wherein, when a length of the opposing surface of the discharging member in the second direction is defined as Zc and a length of the bottom portion of the bag member in the second direction is defined as Zd, then 0.8×Zc<Zd<1.2×Zc.
13 . A toner container according to claim 10 , wherein the discharging member includes a connecting portion to which an opening edge of the second side of the bag member in the first direction is connected,
wherein the connecting portion extends in the first direction from a peripheral edge of the opposing surface to the second side of the bag member in the first direction,
wherein the side surface portion of the bag member includes a first part in which each of the two film materials are connected to the connecting portion and two second parts in which the two film materials are welded each other over a range from both end portions of the connecting portion in the second direction to the side edges, and
wherein, when a length of the opposing surface in the second direction is defined as Yc, YO is a sum of Yc and a length of the two second parts in the second direction, then
1≤YO/Yc≤1.5.
14 . A toner container according to claim 13 , wherein YO/Yc≤1.3.
15 . A toner container according to claim 1 , wherein the discharging member includes a rotatable shutter that is rotatable about an axis in the first direction between a position covering the discharging opening and a position exposing the discharging opening, and a flange portion disposed between the discharging opening and the bag member in the first direction and expanding to outside of an outer surface of the shutter in a radial direction with respect to the axis, and
wherein the flange portion includes a straight portion formed in a linear shape in the second direction at a position away from the axis in the third direction.
16 . An image forming system comprising:
a toner container according to claim 1 ; and
an image forming apparatus including a replenishing opening capable of being exposed to outside of the image forming apparatus,
wherein the toner container is mounted to and demounted from the image forming apparatus via the replenishing opening, and
wherein the image forming system is configured to form an image on a recording material using toner provided from the toner container via the replenishing opening.
17 . A toner container mountable to and demountable from an image forming apparatus, the toner container comprising:
a bag member made of flexible film material, the bag member including (i) a side surface portion configured to form an accommodating space for accommodating toner inside thereof and extending in a first direction and (ii) a bottom portion configured to close the accommodating space from a first side in the first direction; and
a discharging member connected to the bag member and configured to discharge the toner from the accommodating space to outside of the toner container, the discharging member including (i) an opposing surface configured to close the accommodating space from a second side of the bag member in the first direction and opposed to the bottom portion, a receiving opening provided in the opposing surface and configured to receive the toner inside the accommodating space, and (iii) a discharging opening communicating with the receiving opening and configured to discharge the toner received via the receiving opening,
wherein, when directions perpendicular to the first direction and perpendicular to each other are defined as a second direction and a third direction, a length from the opposing surface to an end in an opposite side of the opposing surface of the bag member in the first direction is defined as Xmax, in a case in which a position X, where 0≤X≤Xmax, using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in the second direction is defined as Y and a length of the bag member on the plane in the third direction is defined as Z, and in a case in which Y and Z are YO and ZO in X=0, then:
X
max
>
Y
≧
Z
in
a
range
of
0
≦
X
≦
X
max
,
0.8
×
Z
0
≦
Z
≦
1.2
×
Z
0
in
the
range
of
0
≦
X
≦
X
max
,
and
Y
0
×
Z
0
≦
Y
×
Z
≦
2.5
×
Y
0
×
Z
0
in
a
range
of
0
≦
X
<
0.5
×
X
max
.
18 . A toner container mountable to and demountable from an image forming apparatus, the toner container comprising:
a bag member made of flexible film material, the bag member including (i) a side surface portion configured to form an accommodating space for accommodating toner inside thereof and extending in a first direction and (ii) a bottom portion configured to close the accommodating space from a first side in the first direction; and
a discharging member connected to the bag member and configured to discharge the toner from the accommodating space to outside of the toner container, the discharging member including (i) an opposing surface configured to close the accommodating space from a second side of the bag member in the first direction and opposed to the bottom portion, a receiving opening provided in the opposing surface and configured to receive the toner inside the accommodating space, and (iii) a discharging opening communicating with the receiving opening and configured to discharge the toner received via the receiving opening,
wherein, when directions perpendicular to the first direction and perpendicular to each other are defined as a second direction and a third direction, a length from the opposing surface to an end in an opposite side of the opposing surface of the bag member in the first direction is defined as Xmax, and in a case in which a position X, where 0≤X≤Xmax, using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in the second direction is defined as Y and a length of the bag member on the plane in the third direction is defined as Z, and in a case in which Z is ZO in X=0, then:
X
max
>
Y
≧
Z
in
a
range
of
0
≦
X
≦
X
max
,
0.8
×
Z
0
≦
Z
≦
1.2
×
Z
0
in
the
range
of
0
≦
X
≦
X
max
,
and
Z
≦
0.9
×
Y
in
a
range
of
0
≦
X
<
0.5
×
X
max
.
19 . A toner container mountable to and demountable from an image forming apparatus, the toner container comprising:
a bag member made of flexible film material, the bag member including (i) a side surface portion configured to form an accommodating space for accommodating toner inside thereof and extending in a first direction and (ii) a bottom portion configured to close the accommodating space from a first side in the first direction; and
a discharging member connected to the bag member and configured to discharge the toner from the accommodating space to outside of the toner container, the discharging member including (i) an opposing surface configured to close the accommodating space from a second side of the bag member in the first direction and opposed to the bottom portion, a receiving opening provided in the opposing surface and configured to receive the toner inside the accommodating space, and (iii) a discharging opening communicating with the receiving opening and configured to discharge the toner received via the receiving opening,
wherein, when directions perpendicular to the first direction and perpendicular to each other are defined as a second direction and a third direction, a length from the opposing surface to an end in an opposite side of the opposing surface of the bag member in the first direction is defined as Xmax, in a case in which a position X, where 0≤X≤Xmax, using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in the second direction is defined as Y and a length of the bag member on the plane in the third direction is defined as Z, and in a case in which Y is YO in X=0 and a length of the opposing surface in the second direction is Yc, then:
X
max
>
Y
≧
Z
in
a
range
of
0
≦
X
≦
X
max
,
0.8
×
Z
0
≦
Z
≦
1.2
×
Z
0
in
the
range
of
0
≦
X
≦
X
max
,
and
1
≦
Y
0
/
Yc
≦
1.5
.
20 . A toner container mountable to and demountable from an image forming apparatus, the toner container comprising:
a bag member made of flexible film material, the bag member including (i) a side surface portion configured to form an accommodating space for accommodating toner inside thereof and extending in a first direction and (ii) a bottom portion configured to close the accommodating space from a first side in the first direction; and
a discharging member connected to the bag member and configured to discharge the toner from the accommodating space to outside of the toner container, the discharging member including (i) an opposing surface configured to close the accommodating space from a second side of the bag member in the first direction and opposed to the bottom portion, a receiving opening provided in the opposing surface and configured to receive the toner inside the accommodating space, and (iii) a discharging opening communicating with the receiving opening and configured to discharge the toner received via the receiving opening,
wherein, when directions perpendicular to the first direction and perpendicular to each other are defined as a second direction and a third direction, a length from the opposing surface to an end in an opposite side of the opposing surface of the bag member in the first direction is defined as Xmax, and in a case in which a position X, where 0≤X≤Xmax, using the opposing surface as a reference in the first direction is given, a length of the bag member on a plane perpendicular to the first direction in the second direction is defined as Y and a length of the bag member on the plane in the third direction is defined as Z, and in a case in which Y is YO in X=0, then:
X
max
>
Y
≧
Z
in
a
range
of
0
≦
X
≦
X
max
,
0.8
×
Z
0
≦
Z
≦
1.2
×
Z
0
in
the
range
of
0
≦
X
≦
X
max
,
and
Y
0
≦
Y
≦
2.5
×
Y
0
and
Z
≧
30
mm
in
the
range
of
0
≦
X
≦
X
max
.