Web transporting mechanism of printing apparatus
AssigneeRicoh Printing Systems, Ltd.
InventorsYuji Ohmura, Tsukasa Onose, Takeshi Terakado, Hidenori Iwanaga
Life of this patent
Estimating the term…
Abstract
A web transporting mechanism of a printing apparatus has a buffer mechanism section for absorbing a fluctuation of the web length from a transporting section to a fixing section generated by a difference between a speed of transporting a web in the transporting section and a speed of transporting a web in the fixing section. The web transporting mechanism includes at least one brake member suppressing a motion of a movable buffer. The brake member has a drive means.
Claims18
A web transporting mechanism of a printing apparatus for forming an image on a web to be transported comprising:
- a transporting section for forming the image on the web;
- web transporting means for transporting the web from the transporting section;
- a web discharging mechanism located in a rear portion of the transporting section, for discharging the web on which the image is transported in the transporting section;
- and
- a buffer mechanism giving a tension to the web, and absorbing a fluctuation of a web length from the transporting section to the web discharging mechanism generated by a difference between a web transporting speed of the transporting section and a web transporting speed of the web discharging mechanism,
- wherein the buffer mechanism includes a movable buffer, a position of which is changed according to the web length,
- wherein the web transporting mechanism includes at least one brake member, located in the buffer mechanism, for suppressing a motion of the movable buffer, and
- wherein drive means is provided in the brake member,
- wherein, before a transporting of the web is started, the brake member suppresses the motion of the movable buffer to reduce a shock generated immediately after a start of said transporting, and
- wherein a suppression of the movable buffer by the brake member is released after said transporting is started.
A web transporting mechanism of a printing apparatus for forming an image on a web to be transported, comprising:
- a transporting section for forming the image on the web;
- at least a pair of friction drive rollers for transporting the web from the transporting section, wherein the web passes through the friction drive rollers in the transporting section;
- a web discharging mechanism located in a rear portion of the transporting section, for discharging the web on which the image is transported in the transporting section;
- and
- a buffer mechanism giving a tension to the web, and absorbing a fluctuation of a web length from the transporting section to the web discharging mechanism,
- wherein the buffer mechanism includes a movable buffer, a position of which is changed according to the web length,
- wherein the web transporting mechanism includes at least one brake member, located in the buffer mechanism, for suppressing a motion of the movable buffer, and
- wherein a drive member is provided in the brake member,
- wherein, before a transporting of the web is started, the brake member suppresses the motion of the movable buffer to reduce a shock generated immediately after a start of said transporting, and
- wherein a suppression of the movable buffer by the brake member is released after said transporting is started.
Dependencies are inferred from the claim text.