Brother 9970CDW 74

e Clean the corona wires inside the drum unit by gently sliding the green tabs from left to right and right to left several times.

Note

•Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.

•We recommend that you clean the corona wire for each color. If you want to clean only the corona wire of the color that caused the print quality problem, see the illustration below to identify the position of each of the corona wires.

M m

Y y

C: Corona wire for Cyan

M:Corona wire for Magenta

Y:Corona wire for Yellow

K:Corona wire for Black

c: Cyan toner position label

m:Magenta toner position label

y:Yellow toner position label

k:Black toner position label

The corona wires for black, yellow and magenta are located under the next toner cartridge. For example, when you clean the corona wire for black, you need to remove the yellow toner cartridge to access the corona wire for black.

Contents

Page Page Table of Contents General Setup Security features Sending a fax Receiving a fax Dialing and storing numbers Printing reports Making copies Routine maintenance Options Glossary Index 1 General Setup Ring volume Beeper volume Speaker volume Toner Save Sleep mode Deep Sleep mode Setting up the prefix number Setting the backlight brightness Setting the Dim Timer for the backlight Changing the prefix number 2 Security features Setting and changing the Administrator Password Setting up and changing the Public user mode Setting up and changing restricted users l Press Stop/Exit Changing user name, password or settings for restricted users k Press Stop/Exit Reset existing restricted users j Press Stop/Exit Turning Secure Function Lock on/off Switching Users Setting up the password Changing your Setting Lock password Turning Setting Lock on/off Dial pad restriction One Touch restriction Speed Dial restriction LDAP server restriction 3 Sending a fax Sending faxes using multiple settings Changing a 2-sidedfax layout Volume Contrast Changing Fax Resolution Sending a fax manually Sending a fax at the end of a conversation Dual access (black & white only) Broadcasting (black & white only) How to broadcast a fax f Press Black Start Canceling a Broadcast in progress a PressStop/Exit Real Time Transmission Overseas Mode Delayed Fax Checking and canceling waiting jobs Setting your changes as the new default Restoring all fax settings to the factory settings Electronic cover page (black & white only) Send a cover page for all faxes c d Clear Using a printed cover page f Press Black Start or Color Start Polled transmit (black & white only) 4 Receiving a fax Receiving faxes into memory when the paper tray is empty Fax Forwarding Paging Fax Storage PC-FaxReceive Changing Remote Fax Options Remote retrieval Retrieving fax messages Changing the Fax Forwarding number Remote fax commands Printing a reduced incoming fax Duplex (2-sided)printing for Fax mode Setting the Fax Receive Stamp (black & white only) Receiving a fax at the end of a conversation Setting the Print Density Printing a fax from the memory Polling receive Page 5 Dialing and storing numbers Tone or Pulse (Canada only) Special line considerations For Fax/Tel mode only Installing machine, external two-lineTAD and two-linetelephone Dialing access codes and credit card numbers Setting up Groups for Broadcasting If you chose E-MailColor JPEG or E-MailColor XPS, go to step o p Press Stop/Exit Options for Setting Up Groups Changing Group numbers Deleting Group numbers 6 Printing reports Transmission verification report Fax Journal How to print a report 7 Making copies Stop copying Improving copy quality Enlarging or reducing the image copied Duplex (2-sided)Copying Tray selection Adjusting Brightness and Contrast Sorting copies using the ADF Making N in 1 copies (page layout) If you are copying from the ADF: 2 in 1 (P) 2 in 1 (L) 4 in 1 (P) 4 in 1 (L) 2 in 1 ID Copy Adjusting Color (Saturation) Restoring all copy settings to the factory settings Setting your favorites A Routine maintenance Cleaning the outside of the machine Cleaning the scanner Cleaning the laser scanner windows Page Page Page Cleaning the corona wires Page Page Page Cleaning the drum unit Page Page Page Page Page Page Page Cleaning the paper pick-uprollers Calibration Auto Registration Manual Registration Frequency (Color Correction) Checking the Page Counters Checking the remaining life of parts Page Page Page Page Page Page Page Page Page Page B Options SO-DIMMTypes Installing extra memory Page C Glossary Easy Receive ECM (Error Correction Mode) Extension telephone External telephone F/T Ring Time One Touch Out of Paper Reception Overseas Mode Paging Pause Temporary settings Tone Transmission Transmission Verification Report User Settings List D Index Page Page Visit us on the World Wide Web http://www.brother.com