14-7

MFC 4450/OP-US-5.0

TROUBLESHOOTINGPROCEDURES

Bi-Directional Parallel Ports (nibble and byte modes)

The MFC 4450 supports both nibble (AT) and byte (Bi-Directional) mode parallel ports.IfyourPCsupportsbytemode,scanningandfaxreceptionwillbeatafaster speed.Toverifyorchangetheparallelportmode,pleasecheckyoursystemBIOSin the CMOS Setup or contact your computer manufacturer for assistance.

NOTE: Some older PC models support only nibble mode. Generally, newer models support both nibble and byte modes.

MFC Connect Failure or Bi-Directional Communication Error

Recently, someprintershaveincludedafunctiontoshowtheprinterstatusonthe PC display. Such printers use the bi-directional communication parallel port betweentheprinterandthePC. OurMFC4450alsohasabi-directionalparallelport function.SinceWindows® 3.xxdoesnotsupportbi-directionalcommunicationonthe parallel port, each peripheral vendor has developed and supplies their own bi- directionaldevicedriverwhichwillbeinstalledintoWindows® 3.xx. Ifyouinstalltwo ormoredifferentbi-directionaldevicedriversintoWindows®,theymightconflictwith each other and cause some problems.

Please make sure you have installed the MFC 4450 driver by executing SETUP.EXE fromyourdiskdrive,asinstructedontheDisk1label.Thebi-directionalcommunication may be disable when the driver is installed from Add menu in “Printers” of Control Panel please restart Windows®.

Remove the conflicting situation caused by one of the following printer drivers.

Reviewthefollowingsectionsthatapplytoanyadditionalprinterdriversyoumay

have installed into your Windows® software.

BrotherHL-6/6V/10h/630series/660series/960/1260/WL-660

HPLaserJetseriesII,IID,IIP,IIP+,III,IIID,IIIPorIVPlus

NEC SuperScript 610/660

EPSON ActionLaser 1100/1400

LexMark WinWriter 200

Brother HL-6/6V/10h/630series/660series/960/1260/WL-660:

The Resource Manager for MFC 4450 may not work if the printer driver for the above modelsareinstalledaftertheinstallationoftheMFC4450printerdriver.

Inthiscase,pleaseinstalltheMFC4450printerdriveragainorcopyBI-DI.386from Disk 1 to the Windows®/System directory. (NOTE: BI-DI.386 on Disk 1 is not compressed.)

HP LaserJet series II, IID, IIP, IIP+, III, IIID or IIIP:

IfMicrosoftWindows® PrintingSystemforabovemodelsareused,youhavetomodify the“win.ini”filewhichisintheWindows® directorytoturntheprinter'sbi-directional functionoff.

We recommend you to have back-up before you modify the WIN.INI or SYSTEM.INI, justincase.

Maintenance

MFC4450 specifications

The Brother MFC-4450 is a multifunction center that stands out in the realm of office equipment for its versatility, efficiency, and user-friendly design. This machine combines printing, scanning, copying, and faxing functions, catering to the diverse needs of both home and small office users. Its compact design allows it to fit comfortably on a desk while maximizing productivity without occupying excessive space.

One of the most significant features of the MFC-4450 is its printing capability. It utilizes laser technology, which is renowned for producing sharp text and rich graphics at impressive speeds. With a print resolution of up to 2400 x 600 dpi, users can expect high-quality documents that are essential for any professional setting. The print speed is also a standout characteristic, delivering approximately 21 pages per minute, which helps to keep workflow uninterrupted in busy environments.

The scanning function of the Brother MFC-4450 is equipped with a flatbed scanner that supports high-resolution scanning up to 600 x 2400 dpi. This feature is valuable for digitizing documents, photographs, and receipts, ensuring that important information is preserved in digital format. Additionally, the built-in automatic document feeder (ADF) can handle multiple pages, making it effortless to scan, copy, or fax multi-page documents.

In terms of connectivity, the MFC-4450 offers a variety of options, including USB and parallel interfaces, allowing for easy integration into existing office setups. Its compatibility with various operating systems ensures that users can seamlessly connect it to their computers without any hassle.

Moreover, the MFC-4450 includes advanced features like a 33.6 Kbps fax modem, which can transmit faxes quickly and efficiently. The 250-sheet paper capacity means users can navigate large print jobs without frequent replenishment, promoting uninterrupted work.

Durability and reliability are hallmarks of Brother products, and the MFC-4450 exemplifies this reputation. Built to withstand the rigors of daily use, it reduces downtime with essential features like a low toner indicator and user-friendly maintenance options.

Overall, the Brother MFC-4450 is an all-in-one solution perfect for small businesses and home offices. With its combination of printing, scanning, copying, and faxing capabilities, alongside reliable performance and ease of use, it emerges as a dependable partner for enhancing productivity and efficiency in any workspace.

Brother MFC4450 manual 14-7, Bi-Directional Parallel Ports nibble and byte modes

Models: MFC4450