US 2015/0251466 A1Published application

Printer

AssigneeBrother Kogyo Kabushiki Kaisha

InventorMitsugi Tanaka

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Abstract

The disclosure discloses a printer comprising a printing head, a take-up driving device, a take-up amount detecting portion, a constant torque control device, and a switching control portion. The take-up driving device drives a take-up portion for taking up at least a part of layers of the recording medium fed by a feeder on an outer circumference part and forming a roll. The take-up amount detecting portion detects a take-up amount by the take-up portion. The constant torque control device performs constant torque control that sets a driving torque of the take-up driving device to a constant value corresponding to an input command value. The switching control portion switches the command value in stages in accordance with an increase in the take-up amount detected by the take-up amount detecting portion associated with an advancement of the take-up by the take-up portion.

Claims11

Dependent claims

A printer comprising:

a feeder configured to feed a long recording medium;
a printing head configured to perform printing on said recording medium fed by said feeder;
a take-up driving device configured to drive a take-up portion for sequentially taking up at least a part of layers of said recording medium fed by said feeder on an outer circumference part and forming a roll;
a take-up amount detecting portion configured to detect a take-up amount by said take-up portion;
a constant torque control device configured to perform constant torque control that sets a driving torque of said take-up driving device to a constant value corresponding to an input command value;
and
a switching control portion configured to switch said command value output to said constant torque control device in stages in accordance with an increase in said take-up amount detected by said take-up amount detecting portion associated with an advancement of said take-up by said take-up portion.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/636,899Filed 3 Mar 2015
Priority: JP 2014-0422034 Mar 2014
Published: 10 Sep 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

B65H 18/103
Mechanisms in which power is applied to web-roll spindle: reel-to-reel type web winding and unwinding mechanisms
B41J 3/4075
For marking on special material: tape printers; Label printers
B41J 15/02
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or…
B41J 15/16
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or…