JPS6217255U - - Google Patents
Info
- Publication number
- JPS6217255U JPS6217255U JP1985107676U JP10767685U JPS6217255U JP S6217255 U JPS6217255 U JP S6217255U JP 1985107676 U JP1985107676 U JP 1985107676U JP 10767685 U JP10767685 U JP 10767685U JP S6217255 U JPS6217255 U JP S6217255U
- Authority
- JP
- Japan
- Prior art keywords
- line
- signal
- attached
- short
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007689 inspection Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図〜第５図は本考案の一実施例を説明する
ためのもので、このうち第１図は複写機の接続関
係を示すブロツク図、第２図および第３図はデー
タの送受部分の回路図、第４図はコマンドの送受
を示すタイミング図、第５図はホストＣＰＵの動
作を示す流れ図、第６図は複写機の接続関係の他
の例を示すブロツク図である。
１１……複写機本体、１２……ケーブル、１３
……ＡＤＦ、１４……ソーダ、１５……回路短絡
用コネクタ、１６……ホストＣＰＵ、２３，２４
，３１，３２……送信データ。
Figures 1 to 5 are for explaining one embodiment of the present invention, of which Figure 1 is a block diagram showing the connection relationship of a copying machine, and Figures 2 and 3 are a data transmission/reception section. 4 is a timing diagram showing the transmission and reception of commands, FIG. 5 is a flow chart showing the operation of the host CPU, and FIG. 6 is a block diagram showing another example of the connection relationship of the copying machine. 11... Copy machine body, 12... Cable, 13
...ADF, 14...Soda, 15...Circuit shorting connector, 16...Host CPU, 23, 24
, 31, 32... Transmission data.
Claims (1)
るための第１の線路と、同じく付属装置の接続時
にその付属装置から送出される信号を受信するた
めの第２の線路と、第１の線路に付属装置の状態
を点検するための信号が送り出されたときこれと
同一の信号がこれと同一の時刻に第２の線路に現
れた場合にこれを第１、第２の線路間の短絡状態
と判別する線路短絡判別手段と、第１の線路に前
記状態点検用の信号が送り出されたとき第２の線
路に所定時間内にこれと異なる信号が現れた場合
にこれをもとに付属装置の状態を判別する付属装
置状態判別手段と、第１の線路に前記状態点検用
の信号が送り出されたとき第２の線路に所定時間
内になんらの信号も現れないとき第２の線路に接
続された付属装置の故障を判別する付属装置故障
判別手段とを、本体装置に取付可能の付属装置そ
れぞれに対応させて本体装置側に具備させたこと
を特徴とする電子装置。 A first line for sending a signal to the attached device when the attached device is connected; a second line for receiving the signal sent from the attached device when the attached device is connected; When a signal to check the status of an attached device is sent out, if the same signal appears on the second line at the same time, this is considered to be a short-circuit condition between the first and second lines. a line short-circuit discriminator for determining a short circuit; and a line short-circuit discriminating means for detecting a short circuit in the attached device based on this signal when a signal different from the condition inspection signal appears on the second line within a predetermined time when the condition inspection signal is sent to the first line. An attached device for determining a state; and an accessory device that is connected to the second line when no signal appears on the second line within a predetermined time when the condition check signal is sent to the first line. What is claimed is: 1. An electronic device characterized in that a main device is provided with an accessory device failure determination means for determining a failure of an accessory device that is attached to the main device in correspondence with each accessory device that can be attached to the main device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985107676U JPS6217255U (en) | 1985-07-16 | 1985-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985107676U JPS6217255U (en) | 1985-07-16 | 1985-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6217255U true JPS6217255U (en) | 1987-02-02 |
Family
ID=30984176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985107676U Pending JPS6217255U (en) | 1985-07-16 | 1985-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6217255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01287578A (en) * | 1988-05-14 | 1989-11-20 | Ricoh Co Ltd | Inspection device for image formation system |
| JPH02187776A (en) * | 1989-01-14 | 1990-07-23 | Mita Ind Co Ltd | Controller of image forming device |
-
1985
- 1985-07-16 JP JP1985107676U patent/JPS6217255U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01287578A (en) * | 1988-05-14 | 1989-11-20 | Ricoh Co Ltd | Inspection device for image formation system |
| JPH02187776A (en) * | 1989-01-14 | 1990-07-23 | Mita Ind Co Ltd | Controller of image forming device |
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