Brother DCP-6690CW, Service Manual, Page: 3 / 506

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Preface
This Service Manual is intended for use by service personnel and details the specifications,
construction, theory of operation, and maintenance for the Brother machines noted on the front
cover. It includes information required for troubleshooting and service--disassembly,
reassembly, and lubrication--so that service personnel will be able to understand equipment
function, repair the equipment in a timely manner and order spare parts as necessary.
To perform appropriate maintenance so that the machine is always in the best possible
condition for the customer, service personnel must adequately understand and apply this
manual.
The table below shows the functional comparison between the models covered by this manual.
This manual describes the models and their versions destined for major countries. The specifications and
functions are subject to change depending upon each destination.
Model DCP6690CW MFC6490CW MFC6890CDW
RAM 64 MB
LCD (with backlight)
4.2-inch wide color
3.3-inch wide color
4.2-inch wide color
Touch panel
√
---
√
Wired LAN
√ √ √
Wireless LAN (WLAN PCB)
√ √ √
PhotoCapture Center
√ √ √
PictBridge/USB flash memory drive
√ √ √
Movable platen --- --- ---
Paper tray #2 Up to A3/LGR Up to A3/LGR Up to A3/LGR
Photo tray --- --- ---
ADF
√ √ √
Outer back cover Large Large Large
High yield ink cartridge sensor --- --- ---
Ink cartridge detection sensors
√ √ √
Ink empty sensors
√ √ √
Handset --- --- ---
Duplex printing --- ---
√
Backup battery ---
√ √
FAX ---
√ √