JPS6237302U

JPS6237302U -

Info

Publication number: JPS6237302U
Application number: JP12546885U
Authority: JP
Priority date: 1985-08-15
Filing date: 1985-08-15
Publication date: 1987-03-05

Description

[Brief explanation of the drawing]

第１図は、実施例の複写機の主制御ユニツトの
構成を示すブロツク図である。第２ａ図は第１図
の回路ユニツトを内蔵した複写機の機構部構成を
示す縦断面図、第２ｂ図は該複写機の外観を示す
斜視図である。第３図は、第２ａ図の複写機の電
気回路を示すブロツク図である。第４図は、第３
図の電気回路の動作タイミングを示す波形図であ
る。第５図は、第１図のメモリ１５０内の各領域
の割り当てを示すメモリマツプである。第６ａ図
及び第６ｂ図は、第１図のマイクロプロセツサ１
１０の概略動作を示すフローチヤートである。１：原稿送り機構、４：コンタクトガラス、７
：照明ランプ、８：レンズ、１１：操作パネル、
１２：感光体ドラム、１３：帯電チヤージヤ、１
５：現像器、１７：転写チヤージヤ、１８：分離
チヤージヤ、２４：定着器、２５，２６，２７：
給紙トレイ、４０：装置カバー、１００：主制御
ユニツト（電子制御手段）、１５０：読み書きメ
モリ、１６０：バツクアツプ回路、３１２，３１
４，３１６：ペーパエンドセンサ、３２０：レジ
ストセンサ、３３０：分離センサ、３４０：トナ
ーエンドセンサ、３５０：排紙センサ、３７５：
カバースイツチ、ＲＬ：リレー、ＳＷ１：メイン
スイツチ。 FIG. 1 is a block diagram showing the configuration of a main control unit of a copying machine according to an embodiment. FIG. 2a is a longitudinal sectional view showing the mechanical structure of a copying machine incorporating the circuit unit of FIG. 1, and FIG. 2b is a perspective view showing the external appearance of the copying machine. FIG. 3 is a block diagram showing the electrical circuit of the copying machine of FIG. 2a. Figure 4 shows the third
FIG. 3 is a waveform diagram showing the operation timing of the electric circuit shown in the figure. FIG. 5 is a memory map showing the allocation of each area in the memory 150 of FIG. 6a and 6b show the microprocessor 1 of FIG.
10 is a flowchart showing the general operation of step 10. 1: Original feed mechanism, 4: Contact glass, 7
: Lighting lamp, 8: Lens, 11: Operation panel,
12: Photosensitive drum, 13: Charger, 1
5: Developing device, 17: Transfer charger, 18: Separation charger, 24: Fixing device, 25, 26, 27:
Paper feed tray, 40: Device cover, 100: Main control unit (electronic control means), 150: Read/write memory, 160: Backup circuit, 312, 31
4,316: Paper end sensor, 320: Registration sensor, 330: Separation sensor, 340: Toner end sensor, 350: Paper discharge sensor, 375:
Cover switch, RL: Relay, SW1: Main switch.

Claims

[Scope of Claim for Utility Model Registration] An office processing mechanism that performs predetermined office processing; at least one abnormality detection means that detects an abnormality in the office processing mechanism; and a nonvolatile memory that retains stored contents even when the device is powered off. means for storing the operating state of the apparatus, including the detection result of the abnormality detection means, in the nonvolatile memory means when the apparatus is powered on, and immediately after the apparatus is powered on, the storage contents of the nonvolatile memory means are stored. and if an abnormality has occurred, the office processing mechanism is controlled according to the contents of the memory, and if no abnormality has occurred, the contents of the memory are set to an initial state and the office processing mechanism is controlled according to the contents of the initial state. A state maintenance device for office equipment, comprising: an electronic control means;