Xerox Phaser 3117 Service Manual

Also see for 3117 - Phaser B/W Laser Printer: Upgrade instructions Specifications User guide

Contents

Xerox Phaser 3117 Service Manual Manual pdf 33 page image

xService ManualSystem Overview3-203.3 S/W Structure and DescriptionsThe purpose of this document is to describe the design specification of the Engine Control F/W for thePhaser 3117.3.3.1 IntroductionThis Engine Control Firmware is a program that controls LBP Engine of the Phaser 3117.This firmware is executed every 10msec as an interrupt routine of the main system. At stand-by state, this firmwaremonitors the enable print command from the main system. If the enable print command is detected, this firmwarecontrols the Engine Mechanism according to the printing process and paper feeding state. And with the Sleepcommand or Wake-Up command, this firmware controls the Engine state.3.3.2 Engine Control F/W OverviewEngine Control F/W is executed every 10msec by timer interrupt of main system. And it consists of 3 controlmodules.- Engine Main Control, Interface Control and Sensing & Unit Control Module.Major operations of the Engine Control F/W are following.- Control the Pick-Up, Feeding and Discharging of Paper- Control the LSU- Control the HVPS for the Developer Process- Control the Temperature of Fixing unitControlling selection to here is added.- Second Cassette Feeder(SCF) : N/A