JPS56142085A - Print row detection method - Google Patents
Print row detection methodInfo
- Publication number
- JPS56142085A JPS56142085A JP4647280A JP4647280A JPS56142085A JP S56142085 A JPS56142085 A JP S56142085A JP 4647280 A JP4647280 A JP 4647280A JP 4647280 A JP4647280 A JP 4647280A JP S56142085 A JPS56142085 A JP S56142085A
- Authority
- JP
- Japan
- Prior art keywords
- picture elements
- row
- prints
- reference value
- 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 provide the captioned method which scans one line after dividing it into plural pieces and compares the number of picture elements in a region including a split region adjacent to the preceding row with the number of picture elements in a central region, and surely detects a print line even if a print position is deviated in a row direction.
CONSTITUTION: One line is divided into plural pieces and scanned by means of an optical reading element. Then the number of picture elements in a region including a split region adjacent to the (N-1)th row and a reference value A (the minimum number of picture elements which may be judged as involving prints) are compared to judge whether there are prints in the N-th row. The number of picture elements in the central region of the N-th row and a reference value B (the maximum number of picture elements when a stain is detected) are compared. Thus a judgement "prints exist" of the afore-mentioned judgement becomes valid only when the number of picture elements in the central region exceeds the reference value B. In this way, row skip or double print can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4647280A JPS56142085A (en) | 1980-04-09 | 1980-04-09 | Print row detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4647280A JPS56142085A (en) | 1980-04-09 | 1980-04-09 | Print row detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56142085A true JPS56142085A (en) | 1981-11-06 |
JPH0224678B2 JPH0224678B2 (en) | 1990-05-30 |
Family
ID=12748122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4647280A Granted JPS56142085A (en) | 1980-04-09 | 1980-04-09 | Print row detection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56142085A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150001605A (en) | 2013-06-27 | 2015-01-06 | 코린주식회사 | Information display body and connection member used in the information display body |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5239318A (en) * | 1975-09-25 | 1977-03-26 | Hitachi Ltd | Printer equipped with line detecting mechanism |
-
1980
- 1980-04-09 JP JP4647280A patent/JPS56142085A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5239318A (en) * | 1975-09-25 | 1977-03-26 | Hitachi Ltd | Printer equipped with line detecting mechanism |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150001605A (en) | 2013-06-27 | 2015-01-06 | 코린주식회사 | Information display body and connection member used in the information display body |
Also Published As
Publication number | Publication date |
---|---|
JPH0224678B2 (en) | 1990-05-30 |
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