JPS54151851A - Jam detector for copier - Google Patents
Jam detector for copierInfo
- Publication number
- JPS54151851A JPS54151851A JP6076178A JP6076178A JPS54151851A JP S54151851 A JPS54151851 A JP S54151851A JP 6076178 A JP6076178 A JP 6076178A JP 6076178 A JP6076178 A JP 6076178A JP S54151851 A JPS54151851 A JP S54151851A
- Authority
- JP
- Japan
- Prior art keywords
- copy paper
- time
- timer
- sheet
- passage
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controlling Sheets Or Webs (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To effect the jam detection with the use of a single timer, even when two sheets of copy paper exist in a conveyor passage, by starting the operations of the timer under the condition having only one sheet of the copy paper in the conveyor passage so that the operating time limit of the timer is set within a preset range.
CONSTITUTION: A first sheet of copy paper has its feed started at time t1 and is discharged out of a copier at time t2, thus ending the copying operation. A next sheet of copy paper is fed at time t3 before the time t2 and is discharged at t4 after the time t2. In case two or more sheets of copy paper exist in the conveyor passage, the signals at times ts1, ts2 and so on the condition under which only one sheet of the copy paper exists in the passage are taken out to start the operations of the timer. The time limit of this timer is set more than the time, which is required for the copy paper corresponding to an obstacle to pass over the terminal end portion of the passage, and within a range until the timer starting signal generation corresponding to the accompanying copy paper. When the copy paper is not discharged within that time limit, the condition is detected as the jam of the copy paper.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6076178A JPS54151851A (en) | 1978-05-22 | 1978-05-22 | Jam detector for copier |
DE19792920761 DE2920761A1 (en) | 1978-05-22 | 1979-05-22 | Copier transport fault alarm - has monitors confirming that paper transport is within time period but triggering alarm if excessive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6076178A JPS54151851A (en) | 1978-05-22 | 1978-05-22 | Jam detector for copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54151851A true JPS54151851A (en) | 1979-11-29 |
Family
ID=13151574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6076178A Pending JPS54151851A (en) | 1978-05-22 | 1978-05-22 | Jam detector for copier |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS54151851A (en) |
DE (1) | DE2920761A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587659A (en) * | 1981-07-08 | 1983-01-17 | Toshiba Corp | Copying machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3655283A (en) * | 1969-12-31 | 1972-04-11 | Addressograph Multigraph | High speed photoelectrostatic copying machine |
JPS5347957Y2 (en) * | 1971-11-08 | 1978-11-16 |
-
1978
- 1978-05-22 JP JP6076178A patent/JPS54151851A/en active Pending
-
1979
- 1979-05-22 DE DE19792920761 patent/DE2920761A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2920761A1 (en) | 1979-11-29 |
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