JPS5782856A - Humidity detecting method of picture forming device - Google Patents
Humidity detecting method of picture forming deviceInfo
- Publication number
- JPS5782856A JPS5782856A JP55159047A JP15904780A JPS5782856A JP S5782856 A JPS5782856 A JP S5782856A JP 55159047 A JP55159047 A JP 55159047A JP 15904780 A JP15904780 A JP 15904780A JP S5782856 A JPS5782856 A JP S5782856A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- area
- humidity
- supplied
- relative humidity
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/203—Humidity
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Control Or Security For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
PURPOSE:To control a picture forming element, by detecting the temperature and the humidity at a clean area with comparatively good ventilation within a device and the temperature at an area to be detected and calculating the relative humidity at the area to be detected based on the above-mentioned detections. CONSTITUTION:The 1st temperature and humidity detectors 45 and 46 are installed at the area free from the attachment of the toner, etc. with a reduced effect of gas, etc. within a device to detect the relative humidity at a development part 11. The detection signals of these detectors are supplied to a measuring circuit 47 to measure the temperature and humidity at the corresponding area. The result of this measurement is supplied a microcomputer 25 via an A/D converter 35. On the other hand, the 2nd temperature detector 48 is provided close to the outside of a development tank 11a of the part 11. The detection signal of the detector 48 is supplied to a measuring circuit 49. The result of this measurement is supplied to the computer 25 via the converter 35. Thus the relative humidity of the part 11 is detected through an operation carried out by the computer 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159047A JPS5782856A (en) | 1980-11-12 | 1980-11-12 | Humidity detecting method of picture forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159047A JPS5782856A (en) | 1980-11-12 | 1980-11-12 | Humidity detecting method of picture forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5782856A true JPS5782856A (en) | 1982-05-24 |
JPH0157787B2 JPH0157787B2 (en) | 1989-12-07 |
Family
ID=15685061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55159047A Granted JPS5782856A (en) | 1980-11-12 | 1980-11-12 | Humidity detecting method of picture forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5782856A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5276483A (en) * | 1988-11-08 | 1994-01-04 | Canon Kabushiki Kaisha | Image forming apparatus provided with an attraction charger controlled by one or more ambient conditions |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149091A (en) * | 1977-05-31 | 1978-12-26 | Nec Corp | Surface dew meter |
-
1980
- 1980-11-12 JP JP55159047A patent/JPS5782856A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149091A (en) * | 1977-05-31 | 1978-12-26 | Nec Corp | Surface dew meter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5276483A (en) * | 1988-11-08 | 1994-01-04 | Canon Kabushiki Kaisha | Image forming apparatus provided with an attraction charger controlled by one or more ambient conditions |
Also Published As
Publication number | Publication date |
---|---|
JPH0157787B2 (en) | 1989-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1508245A (en) | Moisture indicating apparatus | |
JPS5782856A (en) | Humidity detecting method of picture forming device | |
JPS56164953A (en) | Ultrasonic inspecting device for junction part | |
CA1292369C (en) | Unthreshed head grain loss monitor | |
SE9502688L (en) | Measuring cell for gas sensing | |
JPS57190212A (en) | Device for detecting abnormality of measuring device | |
JPS6449448A (en) | Error detector | |
JPS55147377A (en) | Road surface state detector | |
JPS5721100A (en) | X-ray generator | |
JPS56142455A (en) | Automatic supersonic flaw detecting device | |
JPS5735749A (en) | Detecting apparatus of abnormality of moisture meter | |
JPS6425055A (en) | Ion monitoring apparatus | |
JPS5648363A (en) | Irregular sheet monitor system | |
JPS5753658A (en) | Nondestructive inspection device | |
JPS5664633A (en) | Leak monitoring system | |
KR100187904B1 (en) | Apparatus for detecting variations in atmospheric pressure | |
JPS5598343A (en) | Determining method of gas concentration | |
JPS57135354A (en) | Defect detecting method of substance | |
JPS5784327A (en) | Device for sensing abnormality of pressure sensing device | |
JPS5530604A (en) | Flow meter | |
JPS5726858A (en) | Electrostatic recorder | |
JPS6436392A (en) | Sheet paper discriminator | |
JPS57117729A (en) | Cooker unit with sensor for foodstuff temperature | |
JPS6415696A (en) | Loose part monitoring apparatus in fluid flow passage of nuclear reactor apparatus | |
JPS5299823A (en) | Developing liquid concentration detector for developing device of wet type diazo copying machine |