Heating device
专利汇可以提供Heating device专利检索，专利查询，专利分析的服务。并且PURPOSE: To permit the acknowledgement of the proper timing of replacement of parts and prevent the tampering as well as the misunderstanding of an unauthorized user, by a method wherein both of a key input device on a front operating panel and the other key input device in a hidden position, which is not used normally, are operated simultaneously to indicate the input.
CONSTITUTION: The input of a heating time in accordance with a menu is effected by the operation of an input key 4 on the bottom of a casing while the mode of operation is shifted to an using time indication mode and the using time of a key is indicated when the key among front input keys 3 is pushed while pushing a second key at the right end of the input keys on the bottom of the casing under a condition that a door 6 is opened, in order to know the using time of respective keys. When the door 6 is closed after checking the using time of a key, whose using time is required to be known, the total sums of the using times of respective keys are indicated for 2 seconds and, thereafter, the mode of operation returns to a normal mode. According to this method, the mode is shifted to an using time indication mode by the operation of both of the front input key 3 and the bottom input key 4, therefore, the using times of respective keys of a heating device may be known by using time counting function while preventing the tampering as well as the mistaken operation of a general unauthorized user.
COPYRIGHT: (C)1988,JPO&Japio，下面是Heating device专利的具体信息内容。
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