Brother HL-2700CN Series, Service Manual

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IV-1
CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS
1. BASIC STRUCTURE
<Mechanical & Electrical Structures>
This laser beam color printer (hereinafter called “Printer”) consists of five mechanical
systems; Print, Transfer, Scanning, Paper Transport and Control System. The printer
produces color printing through the interactive operations of these five systems as
shown in Fig.4-1.
(1) Print System
The print system consists of the following 6 (six) functional parts located around
the OPC belt which form a toner image on the OPC Belt.
• Charger Part
• Exposure Part
• Development Part
• First Transfer Part
• Discharger Part
• Cleaner Part
(2) Scanning System
The scanning system consists of the following 2 (two) functional parts which form
an electrostatic latent image on the OPC Belt by scanning it with a laser beam.
• Scanner Unit
• Scanner Motor (SCM)
(3) Transfer System
The transfer system consists of the following 3 (three) functional parts and
transfers the toner image formed on the transfer drum onto the page.
• First Transfer (Transfer Belt)
• Second Transfer Part (Paper Transfer)
• Drum Cleaner Unit
(4) Paper Transport System
The paper transport system consists of the following 5 (five) functional parts and
picks up paper from the paper tray, separates the paper from the transfer drum
and exits it from the printer body after fusing the toner image on the paper.
• Paper Tray
• Transport rollers
• Paper Discharger
• Fusing unit
• Paper Exit