JP2010169887A5 - - Google Patents
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- JP2010169887A5 JP2010169887A5 JP2009012287A JP2009012287A JP2010169887A5 JP 2010169887 A5 JP2010169887 A5 JP 2010169887A5 JP 2009012287 A JP2009012287 A JP 2009012287A JP 2009012287 A JP2009012287 A JP 2009012287A JP 2010169887 A5 JP2010169887 A5 JP 2010169887A5
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- JP
- Japan
- Prior art keywords
- pressing force
- image
- image carrier
- cleaning member
- rotations
- 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.)
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- 239000000969 carrier Substances 0.000 claims 15
- 238000004140 cleaning Methods 0.000 claims 13
- 238000001514 detection method Methods 0.000 claims 1
Claims (6)
前記像担持体に対する前記クリーニング部材の押圧力を、第１の押圧力と、前記第１の押圧力より低い第２の押圧力との少なくとも２つに切替える押圧力切替手段を設け、
前記押圧力切替手段は、前記クリーニング部材の温度が高いときに、前記クリーニング部材の押圧力を、前記第２の押圧力に切替えることを特徴とする画像形成装置。 In an image forming apparatus comprising an image carrier and a cleaning member that is in sliding contact with the image carrier,
A pressing force switching means for switching the pressing force of the cleaning member against the image carrier to at least two of a first pressing force and a second pressing force lower than the first pressing force;
The image forming apparatus, wherein the pressing force switching unit switches the pressing force of the cleaning member to the second pressing force when the temperature of the cleaning member is high.
前記押圧力切替手段は、所定時間の間での前記像担持体の回転回数が、基準回転回数以上のときに、前記第２の押圧力に切替えることを特徴とする画像形成装置。 In claim 1,
The image forming apparatus, wherein the pressing force switching unit switches to the second pressing force when the number of rotations of the image carrier during a predetermined time is equal to or more than a reference number of rotations.
前記押圧力切替手段は、前記画像形成装置が設置される環境温度が、基準温度以上のときに、前記第２の押圧力に切替えることを特徴とする画像形成装置。 In claim 1,
The image forming apparatus, wherein the pressing force switching means switches to the second pressing force when an environmental temperature in which the image forming apparatus is installed is equal to or higher than a reference temperature.
前記像担持体に対する前記クリーニング部材の押圧力を切替える押圧力切替手段と、
所定時間の経過を計測する手段と、
前記所定時間の間の、前記像担持体の回転回数を計測する手段と、を備え、
前記所定時間の間での前記像担持体の回転回数が、基準回転回数未満の場合は、前記押圧力切替手段により、前記クリーニング部材の押圧力を高くし、
前記所定時間の間での前記像担持体の回転回数が、基準回転回数以上の場合は、前記押圧力切替手段により、前記クリーニング部材の押圧力を低くすることを特徴とする画像形成装置。 An image bearing member; a charging member that charges the image bearing member; an exposure unit that exposes the charged image bearing member in units of dots to form an electrostatic latent image; and a developer on the electrostatic latent image. An image forming apparatus comprising: a developing member that forms a developer image by adhering a toner; a transfer member that transfers the developer image to a medium; and a cleaning member that scrapes off the developer remaining on the image carrier after the transfer. In the device
A pressing force switching means for switching the pressing force of the cleaning member against the image carrier;
Means for measuring the passage of a predetermined time;
Means for measuring the number of rotations of the image carrier during the predetermined time,
If the number of rotations of the image carrier during the predetermined time is less than the reference number of rotations, the pressing force switching means increases the pressing force of the cleaning member,
The image forming apparatus according to claim 1, wherein when the number of rotations of the image carrier during the predetermined time is equal to or greater than a reference number of rotations, the pressing force of the cleaning member is lowered by the pressing force switching unit.
前記像担持体、前記帯電部材、前記現像部材、前記クリーニング部材を含む画像形成ユニットの周辺温度を検出する温度検出手段を備え、
前記所定時間の経過後の前記温度検出手段による検出温度が、基準温度を超えている場合は、前記押圧力切替手段により、前記クリーニング部材の押圧力を低くし、
前記所定時間の経過後の前記温度検出手段による検出温度が、基準温度以下の場合は、前記所定時間の間での前記像担持体の回転回数に応じて、前記クリーニング部材の押圧力を切替えることを特徴とする画像形成装置。 In claim 4,
Temperature detecting means for detecting an ambient temperature of an image forming unit including the image carrier, the charging member, the developing member, and the cleaning member;
If the temperature detected by the temperature detection means after the predetermined time has exceeded a reference temperature, the pressing force switching means lowers the pressing force of the cleaning member,
When the temperature detected by the temperature detecting means after the elapse of the predetermined time is equal to or lower than a reference temperature, the pressing force of the cleaning member is switched according to the number of rotations of the image carrier during the predetermined time. An image forming apparatus.
前記像担持体に対する前記クリーニング部材の押圧力を、第１の押圧力と、前記第１の押圧力より低い第２の押圧力との少なくとも２つに切替える押圧力切替手段を設け、
前記押圧力切替手段は、所定時間の間での前記像担持体の回転回数が、基準回転回数以上のときに、前記第２の押圧力に切替えることを特徴とする画像形成装置。 In an image forming apparatus comprising an image carrier and a cleaning member that is in sliding contact with the image carrier,
A pressing force switching means for switching the pressing force of the cleaning member against the image carrier to at least two of a first pressing force and a second pressing force lower than the first pressing force;
The image forming apparatus, wherein the pressing force switching unit switches to the second pressing force when the number of rotations of the image carrier during a predetermined time is equal to or more than a reference number of rotations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009012287A JP5170690B2 (en) | 2009-01-22 | 2009-01-22 | Image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009012287A JP5170690B2 (en) | 2009-01-22 | 2009-01-22 | Image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010169887A JP2010169887A (en) | 2010-08-05 |
| JP2010169887A5 true JP2010169887A5 (en) | 2011-08-04 |
| JP5170690B2 JP5170690B2 (en) | 2013-03-27 |
Family
ID=42702113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009012287A Expired - Fee Related JP5170690B2 (en) | 2009-01-22 | 2009-01-22 | Image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5170690B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6160595B2 (en) * | 2014-10-29 | 2017-07-12 | コニカミノルタ株式会社 | Image forming apparatus and control method |
| JP7195760B2 (en) | 2018-04-24 | 2022-12-26 | キヤノン株式会社 | cleaning equipment |
| JP2020086061A (en) * | 2018-11-21 | 2020-06-04 | シャープ株式会社 | Cleaning device and image forming apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05165379A (en) * | 1991-12-13 | 1993-07-02 | Canon Inc | Cleaning device for image forming device |
-
2009
- 2009-01-22 JP JP2009012287A patent/JP5170690B2/en not_active Expired - Fee Related
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