Dell 1135N Service Manual page 43

Firmware Side is made up of:
1. Network Interface Card is that relay the communication between Host and kernel using various network
protocols.
2. Kernel manages the flow control of emulation procedure, receiving data from the Host or Network card and
printing with engine & rendering job.
3. Emulation interprets the various output data from selected emulation.
4. Engine prints rendered bit-map data to paper with required size and type by Kernel.
Job Spooling function for Multi-User, Multi-Printing that is occurred in Network printing and various additional
printing functions, this Kernel use max. 10 Queuing systems in a memory.
In Printing, the two procedures are:
(1) Case of using USB Port
- After user starts to print their document to PCL string or compressed GDI bit-map data; the driver
translates all graphic data and sends the data to host spooler. The spooler then sends the data stream
to the printer via USB port.
- Kernel receives this data from the Host, and then selects the emulation fit to data and start selected
one. After emulation job ends, Kernel sends the output bit-map data to Engine using Printer Video
Controller (by clock type for LSU).
- Engine print the received data to required paper with the sequential developing process.
(2) Network Interface Card
- After the user starts to print their document to PCL string or compressed GDI bit-map data, the driver
translates the graphic data and send data to host spooler.
- If so, Port monitor managing network port receives data from spooler and sends a data stream to the
Network Interface Card.
- Network interface card receives it and send to Kernel part.
- Kernel receives this data from Host, and selects emulation fit to data and start selected one. After
emulation job ends, Kernel sends the output bit-map data to the Engine using Printer Video Controller
(by clock type for LSU).
- Engine print the received data to required paper with the sequential developing process.
The additional printing function are realized in:
(1) Web environment
(2) Window environment
In addition, Kernel informs the printing and printer status to end-user making the printing job with the Status
Monitor.
Service Manual
Product specification and feature
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