JPS57205754A - Controller - Google Patents
ControllerInfo
- Publication number
- JPS57205754A JPS57205754A JP56201124A JP20112481A JPS57205754A JP S57205754 A JPS57205754 A JP S57205754A JP 56201124 A JP56201124 A JP 56201124A JP 20112481 A JP20112481 A JP 20112481A JP S57205754 A JPS57205754 A JP S57205754A
- Authority
- JP
- Japan
- Prior art keywords
- jam
- signal
- inputted
- placing plate
- clock pulses
- 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)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE:To detect a jam accurately by counting clock pulses with the inversion signal of an original placing plate, detecting the presence or absence of copying paper with a paper detector, deciding its delay and stagnation and emitting a jam signal when a jam circuit is held set. CONSTITUTION:An inversion position signal CBBP for an original placing plate is inputted as a set signal to the terminal SD of a flip-flop 344 and a detection signal PDP from a paper detector is inputted from a terminal 341. The jam timing signal JTP generated upon lapse of a time adding a slight allowance for the count number of the clock pulses corresponding to an original size is inputted to an NAND gate 345. With such jam circuit used, the clock pulses are counted by the inversion signal for the original placing plate, and the incoming of the copying paper is detected with the paper detector, whereby its delay and stagnation are decided. when the circuit is hled set, the jam signal is generated. The jam is therefore detected accurately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56201124A JPS57205754A (en) | 1981-12-14 | 1981-12-14 | Controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56201124A JPS57205754A (en) | 1981-12-14 | 1981-12-14 | Controller |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49143893A Division JPS5177245A (en) | 1974-12-13 | 1974-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57205754A true JPS57205754A (en) | 1982-12-16 |
Family
ID=16435805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56201124A Pending JPS57205754A (en) | 1981-12-14 | 1981-12-14 | Controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57205754A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4960598A (en) * | 1972-10-11 | 1974-06-12 |
-
1981
- 1981-12-14 JP JP56201124A patent/JPS57205754A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4960598A (en) * | 1972-10-11 | 1974-06-12 |
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