1. An apparatus for reducing vapor emissions from a printer, comprising:
a treatment chamber including: an inlet through which vapor-laden air may enter the treatment chamber while the printer is operating, the inlet having an inlet door for sealing the inlet;
and an outlet through which treated air may exit the treatment chamber while the printer is operating, the outlet door having an outlet door for sealing the outlet;
wherein the inlet and outlet can be sealed while the printer is idle to prevent vapors located in the treatment chamber from being emitted to the atmosphere.
2. The apparatus of claim 1, further comprising hydraulic cylinders connected to said inlet and outlet doors to open and close said inlet and outlet doors.
3. The apparatus of claim 1, wherein said inlet and outlet doors are closed to prevent vapors from being emitted from the treatment chamber.
4. The apparatus of claim 1, further comprising interlocks to ensure that said inlet and outlet doors are not open until the printer is operating.
5. The apparatus of claim 1, wherein the treatment chamber is a cooling cabinet.
6. The apparatus of claim 5, wherein the cooling cabinet comprises a heat exchanger for cooling vapor-laden air from a printing area of the printer.
7. The apparatus of claim 6, wherein the vapor-laden air contains oil vapor.
8. A liquid electrophotography printer comprising:
a printing area;
and a treatment chamber in fluid communication with said printing area,
said treatment chamber comprising: an inlet through which vapor-laden air can enter from said printing area;
an inlet door adjacent to said inlet;
an outlet through which treated air can enter said printing area;
and an outlet door adjacent to said outlet;
wherein said inlet and outlet doors for closing off said inlet and outlet when the printer is idle;
and wherein said treatment chamber can condense solvent from the vapor-laden air while the printer is operating, and the vapor-laden air is prevented from escaping to the atmosphere while the printer is idle.
9. The printer of claim 8, wherein the closing of said inlet and outlet doors can prevent vapors within the vapor-laden air from being emitted from the treatment chamber.
10. The printer of claim 8, wherein the treatment chamber is a cooling cabinet.
11. The printer of claim 8, wherein the vapor-laden air contains oil vapor.
12. A method for reducing vapor emissions from a printer, comprising:
when the printer is operating:
withdrawing air from a printing area to a treatment chamber;
treating the air in the treatment chamber to remove solvent from the air, said solvent producing said vapor emissions;
and recirculating treated air from the treatment chamber back to the printing area; and, opening inlet and outlet doors between said printing area and said treatment chamber;
and when the printer is idle:
sealing the treatment chamber against the release of vapors from the treatment chamber.
13. The method of claim 12, wherein the treatment chamber is a cooling cabinet.
14. The method of claim 13, wherein the treating comprises condensing said solvent from the air.
15. The method of claim 12, wherein said sealing comprises closing inlet and outlet doors of between said printing area and said treatment chamber.
16. The method of claim 12, further comprising shutting off blowers in the printing area and the treatment chamber.
17. The method of claim 12, wherein the sealing of the treatment chamber prevents the vapors from evaporating into the atmosphere.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A telecommunication equipment, comprising:
a switch receiving data from a plurality of ports and operable to insert a unique port identifier in the data from each port to identify the source port of the data; and
a multiplexer coupled to the switch and operable to multiplex the data from the plurality of ports into a single serial data stream.
2. The telecommunication equipment, as set forth in claim 1, wherein the switch receives data frames from a plurality of Ethernet ports.
3. The telecommunication equipment, as set forth in claim 1, wherein the multiplexer is operable to multiplex the data from the plurality of ports into a single SONET synchronous payload envelope.
4. The telecommunication equipment, as set forth in claim 1, wherein the multiplexer is operable to convert the single serial data stream into optical signals.
5. The telecommunication equipment, as set forth in claim 1, further comprising a subscriber access multiplexer operable to receive the single serial data stream from the multiplexer, demultiplex the serial data stream into data from each port, and route the data based on the unique port identifier.
6. The telecommunication equipment, as set forth in claim 1, wherein the switch is operable to insert the unique port identifier into a VID data field of a tagged MAC frame of the data from each port.
7. The telecommunication equipment, as set forth in claim 1, further comprising:
a subscriber access multiplexer operable to receive data from a plurality of sender nodes in a network and operable to insert the unique port identifier based on an IP address of the sender node of the data, and multiplex the data into a single serial data stream;
the multiplexer being operable to receive the single serial data stream from the subscriber access multiplexer and demultiplex the data; and
the switch being operable to switch the demultiplexed data based on the unique port identifier to the plurality of ports.
8. The telecommunication equipment, as set forth in claim 1, further comprising a subscriber access multiplexer operable to receive the single serial data stream from the multiplexer and route the data to a destination network node based on the unique port identifier, a MAC address and IP address in the data.
9. A method comprising:
receiving data from a plurality of ports;
adding a unique port identifier to the data from each port to identify the port from which the data came; and
multiplexing the data from the plurality of ports into a single data stream for transmission.
10. The method, as set forth in claim 9, wherein receiving data comprises receiving data from a plurality of Ethernet ports.
11. The method, as set forth in claim 9, wherein multiplexing the data comprises multiplexing the data into a single SONET synchronous payload envelope.
12. The method, as set forth in claim 9, wherein adding the unique port identifier comprises inserting the unique port identifier into a VID field of a tagged MAC frame of the data.
13. The method, as set forth in claim 9, further comprising converting the single serial data stream into SONET optical signals for transmission.
14. The method, as set forth in claim 9, further comprising:
receiving the single serial data stream;
demultiplexing the single serial data stream into data from each port; and
routing the data from each port based on the unique port identifier.
15. The method, as set forth in claim 9, further comprising:
receiving data from a plurality of sender nodes in a network;
inserting a unique port identifier based on an IP address of the sender node of the data; and
multiplexing the data into a single serial data stream for transmission;
receiving the transmitted data and demultiplexing the data into data from each sender node; and
switching the demultiplexed data based on the unique port identifier to the plurality of ports.
16. The method, as set forth in claim 9, further comprising receiving the single serial data stream and routing the data to a destination network node based on the unique port identifier, a MAC address and IP address in the data.
17. A method of multiplexing data from a plurality of ports for transmission, comprising:
receiving data from the plurality of ports;
adding a unique port identifier to a predetermined header field of the data from each port to identify the port from which the data came;
multiplexing the data from the plurality of ports into a single SONET synchronous payload envelope; and
converting the multiplexed data into a SONET optical signal for transmission.
18. The method, as set forth in claim 17, wherein receiving data comprises receiving data from a plurality of Ethernet ports.
19. The method, as set forth in claim 17, wherein adding the unique port identifier comprises inserting the unique port identifier into a VID field of a tagged MAC frame of the data.
20. The method, as set forth in claim 17, further comprising:
receiving the SONET optical signal and converting to a single data stream;
demultiplexing the data stream from each port; and
routing the data from each port based on the unique port identifier.
21. The method, as set forth in claim 17, further comprising:
receiving data from a plurality of sender nodes in a network;
inserting a unique port identifier based on an IP address of the sender node of the data;
multiplexing the data into a single serial data stream for transmission;
receiving the transmitted data and demultiplexing the data into data from each sender node; and
switching the demultiplexed data based on the unique port identifier to the plurality of ports.
22. The method, as set forth in claim 17, further comprising receiving the single serial data stream and routing the data to a destination network node based on the unique port identifier, a MAC address and IP address in the data.