1. A method in which a user equipment accesses a web page through a network, the method comprising:
providing, when sending a request for a domain name server to send an Internet Protocol (IP) address, a Unique Resource Locator (URL) that the user equipment is anticipated to access to the domain name server;
receiving the IP address as a response to the request from the domain name server; and
establishing a Transmission Control Protocol (TCP) session with a proxy server to access the web page corresponding to the URL that the user equipment is anticipated to access.
2. The method according to claim 1, wherein accessing the web page comprises:
acquiring the IP address from the domain name server;
establishing the TCP session with a specific web server through the proxy server; and
after acquiring the IP address and establishing the TCP session, accessing the web page provided by the specific web server through the proxy server based on Hypertext Transfer Protocol (HTTP),
the method further comprising, when requesting the domain name server to send the IP address, providing the URL corresponding to the web page that the user equipment tries to access.
3. The method according to claim 2, further comprising, after requesting the proxy server to establish the TCP session with the specific web server or requesting accessing the web page based on the HTTP, setting a time of a timer in consideration of Round Trip Time (RTT) between the user equipment and the proxy server, except for RTT between the proxy server and the specific web server for processing the request, in order to measure a response waiting time taken to response to the request.
4. An apparatus of enabling a user equipment to access a web page through a network, the apparatus comprising:
a communication unit configured to communicate with a domain name server and a proxy server through the network, in order to access the web page; and
a controller configured to control the communication unit to provide, when sending a request for a domain name server to send an Internet Protocol (IP) address, a Unique Resource Locator (URL) that the user equipment is anticipated to access to the domain name server, to receive the IP address as a response to the request from the domain name server, and to establish a Transmission Control Protocol (TCP) session with the proxy server to access the web page corresponding to the URL that the user equipment is anticipated to access.
5. The apparatus according to claim 4, wherein the controller is further configured:
to control the communication unit to acquire the IP address from the domain name server;
to establish the TCP session with a specific web server through the proxy server;
to access, after acquiring the IP address and establishing the TCP session, the web page provided by the specific web page through the proxy server based on Hypertext Transfer Protocol (HTTP); and
to control the communication unit to provide, when requesting the domain name server to send the IP address, the URL corresponding to the web page which the user equipment tries to access.
6. The apparatus according to claim 5, wherein after requesting the proxy server to establish the TCP session with the specific web server or requesting accessing the web page based on the HTTP, the controller is configured to set a time of a timer in consideration of Round Trip Time (RTT) between the user equipment and the proxy server, except for RTT between the proxy server and the specific web server for processing the request, in order to measure a response waiting time taken to response to the request.
7. A method in which a proxy server supports a user equipment to access a web page, the method comprising:
receiving a Uniform Resource Locator (URL) provided when an Internet Protocol (IP) address is requested from the user equipment, from a domain name server, and
acquiring information of the web page that the user equipment is anticipated to access, in advance, based on the URL, before receiving a Transmission Control Protocol (TCP) session request and a Hypertext Transfer Protocol (HTTP) request from the user equipment.
8. The method of claim 7, further comprising, in order to in advance acquire information of the web page that the user equipment is anticipated to access, establishing a TCP session with a target web server based on the received URL, before receiving the TCP session request from the user equipment, and accessing the target web server providing the web page that the user equipment is anticipated to access, based on HTTP, to receive the information of the web page, before receiving the HTTP request.
9. The method of claim 7, wherein acquiring the information of the web page in advance comprises:
if the URL that the user equipment is anticipated to access, the URL provided when the IP address is requested from the user equipment, is transferred through the domain name server, establishing a TCP session with a target web server recognized by the URL;
if the TCP session request is received from the user equipment, receiving information of the web page corresponding to the received URL from the target web server based on HTTP; and
if the HTTP request is received from the user equipment, transferring the received information of the web page as a response to the HTTP request to the user equipment.
10. An apparatus in which a proxy server supports a user equipment with a predetermined web browser installed therein to access a web page, the apparatus comprising:
a communication unit configured to communicate with the user equipment, a domain name server, and a web server, in order to support the user equipment to access the web page; and
a controller configured to receive a Uniform Resource Locator (URL) provided when an Internet Protocol (IP) address is requested from the user equipment, through the domain name server, and to acquire information of the web page that the user equipment is anticipated to access, in advance, based on the received URL, before receiving a Transmission Control Protocol (TCP) session request and a Hypertext Transfer Protocol (HTTP) request from the user equipment.
11. The apparatus according to claim 10, wherein in order to in advance acquire information of the web page that the user equipment is anticipated to access, the controller is configured to establish a TCP session with a target web server based on the received URL, before receiving the TCP session request from the user equipment, and access the target web server providing the web page that the user equipment is anticipated to access, based on HTTP, to receive the information of the web page, before receiving the HTTP request.
12. The apparatus according to claim 10, wherein:
if the URL that the user equipment is anticipated to access, the URL provided when the IP address is requested from the user equipment, is transferred through a domain name server, the controller is configured to establish a TCP session with a target web server recognized by the URL,
if the TCP session request is received from the user equipment, the controller is configured to receive information of the web page corresponding to the received URL from the target web server based on HTTP, and
if the HTTP request is received from the user equipment, the controller is configured to transfer the received information of the web page as a response to the HTTP request to the user equipment.
13. A method in which a domain name server supports a user equipment to access a web page, the method comprising:
receiving a Uniform Resource Locator (URL) that the user equipment is anticipated to access, from the user equipment, when an Internet Protocol (IP) address is requested, and when the IP address is allocated to the user equipment in response to the IP address request, transferring the URL to a proxy server so that the proxy server establishes a Transmission Control Protocol (TCP) session with a target web server recognized by the URL.
14. An apparatus in which a domain name server supports a user equipment to access a web page, the apparatus comprising:
a communication unit configured to communicate with the user equipment and a proxy server, in order to support the user equipment to access the web page; and
a controller configured to control the communication unit to receive a Uniform Resource Locator (URL) that the user equipment is anticipated to access, from the user equipment, when an Internet Protocol (IP) address is requested, and to transfer the URL to the proxy server when the IP address is allocated to the user equipment in response to the IP address request, so that the proxy server establishes a Transmission Control Protocol (TCP) session with a target web server recognized by the URL.
15. The apparatus of claim 14, wherein the UE uses a predetermined web browser to access the web page via an internal network.
16. The method of claim 1, wherein the UE uses a predetermined web browser to access the web page via an internal network.
17. The apparatus of claim 4, wherein the UE uses a predetermined web browser to access the web page via an internal network.
18. The method of claim 7, wherein the UE uses a predetermined web browser to access the web page via an internal network.
19. The apparatus of claim 10, wherein the UE uses a predetermined web browser to access the web page via an internal network.
20. The method of claim 13, wherein the UE uses a predetermined web browser to access the web page via an internal network.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image forming apparatus for forming an image based on an electrophotographic printing method, comprising:
a process unit detachable from the image forming apparatus, the process unit including at least a photoreceptor and a charging section for charging the photoreceptor;
an exhaust path having, as a part of the exhaust path, a space where the charging section is provided; and
a positioning member movable between (i) a positioning position for putting the process unit in a positioned state where the process unit is positioned at a predetermined position and (ii) a releasing position for releasing the process unit from the positioned state, the positioning member having an air path via which air is introduced, the air path and the exhaust path being connected in a case where the positioning member is in the positioning position, and the air path and the exhaust path being disconnected in a case where the positioning member is in the releasing position.
2. The image forming apparatus as set forth in claim 1, further comprising a laser radiating device for radiating laser light via a covering member to the photoreceptor so as to form an electrostatic latent image on the photoreceptor, the covering member being provided on a top surface of the laser radiating device,
the process unit being attached onto the laser radiating device, and
the positioning member having the air path in such a manner that the air path penetrates the positioning member, and in a case where the positioning member is in the releasing position, a direction from an entrance of the air path to an exit of the air path extends toward where the covering member is provided.
3. The image forming apparatus as set forth in claim 2, wherein the air path of the positioning member extends linearly from the entrance of the air path to the exit of the air path.
4. The image forming apparatus as set forth in claim 1, further comprising a laser radiating device for radiating laser light via a covering member to the photoreceptor so as to form an electrostatic latent image on the photoreceptor, the covering member being provided on a top surface of the laser radiating device,
the process unit being attached onto the laser radiating device, and
between the positioning member in the releasing position and the top surface of the laser radiating device, there being provided a space via which a cleaning member for cleaning a top surface of the covering member of the laser radiating device is inserted.
5. The image forming apparatus as set forth in claim 1, wherein the positioning member is switched between the positioning position and the releasing position by rotation of the positioning member.