Muratec DIGITAL LASER F-114 - Manual (Page 21)

Service Manual
Product spec and feature
2-9
2.2.2 Overview of System
The F-114 / F-114P can be divided into the following main constituent parts: Main Controller, Operator’s Panel,
PC Interface, Scanner, Line Interface and Power Supply. The Main Controller uses an SPGPm processor. The
Operator’s panel; (OPE) has its own MICOM which communicates serially with a UART built into the SPGPm
processor. The Scanner uses an Image Processor chip (CIP4) to control the CIS. The Line Interface an FM336
integrated with the Main Board and communicates with the LIU at speeds up to 33.6Kbps. The Power Supply has
both the SMPS and HVPS integrated on one PBA.
2.2.2.1 Main Controller.
The Main Controller of the F-114 / F-114P consists of two ASICs (CPU, Image Processor), Scanner, Fax Modem
and Print sections. Bus Control, I/O Handling, Scanner, all motor drivers and the PC Interface function is controlled
by the CPU.
It uses the chorus2. These control the peripherals and the Image Processing.
2.2.2.2 Line Interface.
This part connects the set with the PSTN. The main functions of this section are Line Interface, Line Monitoring,
and connection to an external phone or TAD using the built in EXT connector..
2.2.2.3 Print Engine.
The Print Engine consists of the following sections: Frame, Paper Feed, Image Transfer, Imaging Unit, Toner
Cartridge, Fuser, High Voltage Supply and Scanner. The set uses an Electro Photographic process using the LSU
to develop a latent image on the OPC drum. The Toner process is a single part diamagnetic process. Copy and
Transfer processes use a CIS Module.
2.2.2.4 Scanner.
The scanner is designed around a 200dpi CIS module. The CIS scanning width is maximum 216mm,
effective width is 208mm. The F-114 operates at 200lpi, the F-114P operates at 300 lpi.
2.2.2.5 Summary of Main Unit
- Main Board
This is an integral unit having the Engine and Video control on a single PBA. It controls the Electrophotographic
Process to take the image from the PC Interface and generate the Video Data for the LSU. It also manages the
transfer of that image onto paper and the fusing of the image. The main PBA unit consists of the following circuits:
Motor (Paper Feed and Exit) Driver, the Clutch driver, Pre-transfer Lamp Driver, the Fuser Driver and the Fan
Driver. The signals from the Paper Feed Sensor, the Paper Empty Sensor, MP sensor and Exit Sensor are input to
the Main Board from the SMPS/HVPS PBA.