Printer

Patent metadata

Field	Value
Publication number	US-9868304-B2
Application number	US-201715429318-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Feb 12, 2016
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A printer, comprising: a printing part; a conveying mechanism to send out a print medium from a medium roll around which the print medium is wound, the conveying mechanism comprising a correcting mechanism to correct curl of the print medium in a winding direction by curving the print medium in a reverse direction of the winding direction; and a controller configured to: store a finish time of the printing; obtain a start time when next printing is started; determine whether an elapsed time elapsed from the finish time to the start time is longer than a particular time; when the elapsed time is longer than the particular time, cause the conveying mechanism to convey the print medium by a particular length which is longer than a length between the correcting mechanism and the printing part; and cause the printing part to perform the printing.

First claim

What is claimed is:

1. A printer, comprising:
a printing part configured to perform printing on a print medium;
a conveying mechanism configured to send out the print medium from a medium roll around which the print medium is wound and to convey the print medium via the printing part, the conveying mechanism comprising a correcting mechanism configured to correct curl of the print medium caused in a winding direction of the print medium by curving the print medium in a reverse direction of the winding direction; and
a controller configured to:
store a finish time of the printing by the printing part in a storage device;
obtain a start time when next printing is started by the printing part after previous printing has been finished;
determine whether an elapsed time elapsed from the finish time stored in the storage device to the obtained start time is longer than a particular time;
when the controller determines that the elapsed time is longer than the particular time, cause the conveying mechanism to convey the print medium by a particular length which is longer than a length, in a conveying direction along a conveying path of the print medium, between the correcting mechanism and the printing part; and
cause the printing part to perform the printing on the print medium after the print medium has been conveyed by the particular length.

2. The printer according to claim 1 ,
wherein the controller is further configured to:
stop conveying of the print medium after the print medium has been conveyed by the particular length; and
accept an operation, and
wherein the controller causes the printing part to perform the printing on the print medium when the operation is accepted.

3. The printer according to claim 1 ,
wherein the controller is further configured to:
obtain temperature; and
determine the particular time based on the obtained temperature, and
wherein the controller determines whether the elapsed time is longer than the determined particular time.

4. The printer according to claim 3 ,
wherein:
the temperature obtained by the controller comprises a finish temperature obtained when the finish time is stored in the storage device and a start temperature obtained when the start time is obtained; and
the controller determines the particular time based on the finish temperature and the start temperature.

5. The printer according to claim 1 ,
wherein the controller is further configured to cause the conveying mechanism to periodically convey the print medium by an auxiliary particular length shorter than the particular length.

6. The printer according to claim 1 ,
wherein the controller is further configured to:
obtain print data; and
determine whether a length of a printing area within which the printing is performed by the printing part based on the obtained print data is longer than or equal to a supplementary particular length, the supplementary particular length being a length defined in the conveying direction between the correcting mechanism and the printing part, and
wherein when the controller determines that the length of the printing area in the conveying direction is longer than or equal to the supplementary particular length, the controller causes the conveying mechanism to covey the print medium by the particular length.

Assignees

• Brother Ind Ltd

Inventors

• Tomomatsu Yoshitsugu

Classifications

• B65H23/34

  Apparatus for taking-out curl from webs · CPC title

• B41J2/32

  using thermal heads · CPC title

• B41J13/0009 Primary

  control of the transport of the copy material · CPC title

• B41J11/42 Primary

  Controlling {printing material conveyance for accurate alignment of the printing material with the printhead; Print registering} · CPC title

• B41J15/042

  for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material · CPC title