Samsung CLP 510N - Color Laser Printer, Service Manual

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5-12
System Outline
Samsung Electronics
Service Manual
5.2.3 Ready
1) Host interface is monitored for print commands
2) Heat control
* Target temperature (165°C)
* Every 40 seconds, temperature value for the previous 250ms is read and a proportional control
process is carried out
3) This is the standby mode entered after warm-up or after completing a print job.
4) System Error check
5) Power save state is entered after timeout
> Wakeup condition
* When a "wakeup" order is received
* When a cover is opened and then closed
* When the level of the paper empty sensor changes.
> Heat lamp is off
5.2.4 Pre-Print
This is the preparation stage before processing a printing job and after receiving a print command from a host.
1) Start LSU
* Run Scanning motor
* Check motor ready
* Turn LD on
2) Start BLDC motor, Eraser/PTL on
* Run main motor
* Check lock signal
* Run developer roll motor
* Check lock signal
3)Turn High Voltage On
* Charger on
* Developer high voltage off
4) Cleaning
* OPC cleaning (Mechanical motion)
* ITB cleaning
5) Jam check
6) Motor Unlock Check
7) Check and Set a High Voltage Condition (T1, T2, Charger)
8) Initialize Printing Parameters
* Paper size, copies, cassette ...
* Image pixels, image times, y-offset, x-offset
* Flags
9) Check Print mode
* Color print mode:
- Except legal & OHP/Legal/OHP
- Simplex/Duplex
* Mono pint mode: Simplex/Duplex/OHP