JPS5592071A - Copying unit - Google Patents
Copying unitInfo
- Publication number
- JPS5592071A JPS5592071A JP16518878A JP16518878A JPS5592071A JP S5592071 A JPS5592071 A JP S5592071A JP 16518878 A JP16518878 A JP 16518878A JP 16518878 A JP16518878 A JP 16518878A JP S5592071 A JPS5592071 A JP S5592071A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- read
- code
- group
- comparator
- 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.)
- Granted
Links
Abstract
PURPOSE: To make a recording speed high by skipping the read of picture information, which is not recorded, to reduce waste of the read time.
CONSTITUTION: In respect to line sensor 1, plural photoelectric conversion elements are divided into m-number groups, and an output end and a drive end are provided for every group, and two-phase transfer clock pulses are inputted to the drive end. Read selection circuit 2 is constituted by MOSFET F1∼F2m and decoder 2a, and a code indicating a group is inputted from group selection circuit 3 to this circuit 2. Circuit 3 is constituted by OR gate OR1, AND gate AND1, AND gate AND2, counter 3a and comparator 3b, and a code indicating a read width is inputted from read width setting circuit 4 to this circuit 3. Circuit 4 is constituted by start and terminal address buffers 4a and 4b and gives the start group code of buffer 4a and the terminal code of buffer 4b to counter 3a and comparator 3b respectively. When the code of counter 3a becomes equal to the code of buffer 4b, comparator 3b generates an output of high level "1" to indicate the end of read of one-line components.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16518878A JPS5592071A (en) | 1978-12-30 | 1978-12-30 | Copying unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16518878A JPS5592071A (en) | 1978-12-30 | 1978-12-30 | Copying unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592071A true JPS5592071A (en) | 1980-07-12 |
JPS6150546B2 JPS6150546B2 (en) | 1986-11-05 |
Family
ID=15807502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16518878A Granted JPS5592071A (en) | 1978-12-30 | 1978-12-30 | Copying unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5592071A (en) |
-
1978
- 1978-12-30 JP JP16518878A patent/JPS5592071A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6150546B2 (en) | 1986-11-05 |
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