JPH0342651U

JPH0342651U -

Info

Publication number: JPH0342651U
Application number: JP10304089U
Authority: JP
Priority date: 1989-09-01
Filing date: 1989-09-01
Publication date: 1991-04-23
Anticipated expiration: 2004-09-01
Also published as: JPH084297Y2

Description

[Brief explanation of drawings]

第１図は本実施例装置の機能ブロツク図、第２
図は同装置の通電時間制御器の通電時間制御を表
わした説明図、第３図は同通電時間制御器のフロ
ーチヤート図、第４図は従来周知のサーマル印刷
装置による通電時間制御を表わした説明図である
。Ｔ……チケツト、ｔ１……印刷所要通電時間、
ｔ２……プリヒート所要通電時間、ｔ３……余剰
通電時間、ｔ４……濃度調整通電時間、Ｐｔ……
プリヒート温度、１……サーマルヘツド、２……
ヘツド温度センサー、３……外気温度センサー、
４……通電時間制御器、５……ヒートローラ、６
……プラテンローラ。 Figure 1 is a functional block diagram of the device of this embodiment;
The figure is an explanatory diagram showing the energization time control of the energization time controller of the device, FIG. 3 is a flowchart of the energization time controller, and FIG. 4 is the energization time control by a conventionally known thermal printing device. It is an explanatory diagram. T...Ticket, t1...Required power-on time for printing,
t2...Required energization time for preheating, t3...Excess energization time, t4...Concentration adjustment energization time, Pt...
Preheat temperature, 1... Thermal head, 2...
Head temperature sensor, 3...Outside air temperature sensor,
4... Energization time controller, 5... Heat roller, 6
...Platenrolla.

Claims

[Scope of Claim for Utility Model Registration] [1] A thermal head 1 that heats a ticket T to a temperature at which thermal printing is possible by applying current during a predetermined time period and thermally prints the ticket T, and a head of this thermal head 1. A head temperature sensor 2 that detects the temperature, an outside air temperature sensor 3 that detects the outside air temperature around the unprinted ticket T, and the head temperature of the head temperature sensor 2 and the outside air temperature of the outside air temperature sensor 3 are input. and an energization time controller 4, the energization time controller 4 is configured to increase the temperature of the thermal head 1 to the thermal printing temperature based on a change in the outside air temperature. While outputting the required energization time t2 to the thermal head and controlling the head temperature of the thermal head 1 to be equal to a predetermined preheat temperature Pt lower than the thermal printing temperature,
The surplus current supply time is set to suppress the tendency of print density to increase based on the required printing current supply time t1 due to the outside air temperature when the head temperature exceeds the same preheat temperature Pt and the temperature change in the head temperature due to the relevant printing required current supply time. From t3 to concentration adjustment energization time t4
A preheat type high-speed thermal printing apparatus is characterized in that it is configured to be able to calculate the density adjustment energization time t4 and output the density adjustment energization time t4 to the thermal head 1. [2] A heat roller that preheats the ticket T to a predetermined temperature lower than the thermal printing temperature of the thermal head 1 by sandwiching and conveying the ticket T is provided before the thermal head 1 that thermally prints the ticket T. 2. The preheat type high-speed thermal printing apparatus according to claim 1, further comprising a preheating type high-speed thermal printing apparatus. [3] A thermal head 1 that thermally prints a ticket T, a heat roller 5 that heats an unprinted ticket T by holding and transporting the ticket T, and a heat roller 5 that faces the thermal head 1 and is connected to the thermal head. Unprinted ticket T
The ticket T is heated by the heat roller 5 or the platen roller 6 to a predetermined temperature lower than the thermal printing temperature of the thermal head 1. A preheat type high-speed thermal printing device characterized in that the thermal responsiveness of the ticket is improved by preheating the ticket.