Samsung ML-1610XBH Service Manual

Also see for ML-1610 Series: Manual Manual Del Usuario User manual Service manual User guide

Contents

Samsung ElectronicsService ManualSystem Overview3-223.3.3 F/W Architecture of Engine Control Firmware- The Engine Control Module is executed every 10msec as interrupt job of main system. There are threecontrol modules, i.e., Engine Main Control Module, Engine Interface Module and Sensing & Unit ControlModule.- Probably from usual state it will be able to rehabilitated a prior to entry error state in error condition it is toconfirm. When the if rehabilitation is possible then after rehabilitating it goes back in usual state, else withan error condition it goes in error state. Currently the rehabilitation function of the low heat error , the overheat error and the LSU error is embodied.- Low Heat ErrorWhen the error occurrs, it does not indicate an error. It stores the present temperature and supplies theheat to the fixing unit during the scheduled time. If the temperature goes up after scheduled time, it goesback to a normal state. However, if not, it is formed that an error occurrs.- Over Heat ErrorWhen the error occurs, it informs an error first. It stores the present temperature as well and waits ascheduled time. If the temperature goes down after scheduled time, then it goes back to a normal state.However, if not, it is formed that an error occurrs.- Lsu ErrorWhen the error occurrs, it does not indicate an error. It accomplishes printing only again. If even timewhen it judges an error, it informs an error. Concretely speaking, if the LReady or Hsync error happens,the paper exits out beforehand. And then the engine mode is changed to recovery mode and the engineinforms the main system of the engine mode. And the engine checks the LSU error in itself. If the errordoesn’t happen, the printing job will be proceeding.3.3.4 Engine Interface Module DesignEngine Interface Module communicates with the main system in order to receive the command from main systemand to transmit the present engine status for the requested status. There are two sub functions. One is a function toreceive the command from the main system. The other is a function that informs the main system of the currentengine status for the requested item.3.3.5 Engine Sensing & Unit Control Module DesignEngine Sensing & Unit Control Module consists of 4 sub-functions. The first function is an ADC function that readsthe ADC values of the temperature of the fixing unit. The second one is a fixing unit control function. This functionregulates the temperature of the fixing unit within a fixed range to be set by the paper type and the number of pagesto print out. The third one is a fan control function that controls the fan unit. And the last one sets the flag thatdescribes the present status of each sensor.