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BROTHER MFC 9420CN SERVICE MANUAL PDF

Download BROTHER MFCCN FACSIMILE EQUIPMENT SM service manual & repair info for electronics experts. For the location of a Brother authorized service center, call BROTHER. IMPORTANT select Brother, MFL. Pro Suite MFCCN from the Programs. Find official Brother MFCCN FAQs, videos, manuals, drivers and downloads here. Get the answers and technical support you are looking for.

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Brother MFC-9420CN

If the problem continues then reseat the fuser or mrc it out and measure for continuity across the lamp and thermostat. Page 5 Make the following selection. Page 99 Fuser lamp I: Jitter Phenomenon Uneven optical density appears periodically in the horizontal manuxl on the printed image as shown in print sample [3] of Fig.

Posted on Apr 09, Be the first to answer. Disable Enable Not used. Page I Horizontal mcc line Phenomenon White line appears in the horizontal direction, as shown in print sample [25] of Fig. Error Code Symptom Probable Cause Solution Hex Toner cartridge Black switching solenoid error Replace the toner defective cartridge Toner retract solenoid Replace the toner retract assy defective solenoid assy Engine controller board Replace the engine defective controller board.

Nem dobtam el, mostanig oriztem, mert nem volt idom ra.

Page I Toner Drop Phenomenon Toner spot stain is caused on the print by toner dropping within the machine engine as shown in print sample [14] of Fig. Setting both of these selectors to “1” activates the dial tone detection function so that the machine starts sercice upon detection of a dial tone when a line is connected.

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Two types of normal and extreme thick paper are provided for the label. It’s not a very common error. Page White Line 1 Phenomenon Vertical white line appears in the specific color area when test-printed in the four color mode Stripe Modeas shown in print sample [6] of Fig. The operator manual showed a different procedure, but it did not work. CIS defective Replace the scanner cover scanner unit. Developer Motor PU To drive the toner cartridge and the developing system.

Page of Go. Basic Structure Of The Printing System [ 2 ] Basic structure of the printing system A toner image is formed through the potential of the OPC belt varying in each of the charger, exposure, development, transfer and cleaning processes. It is impossible to anticipate all of the possible problems which may occur in future and determine the troubleshooting procedures, so this section covers some sample problems.

Page The control panel does not work. Main Causes 1 The fuser roller is deteriorated. Never took it out.

Brother MFCCN | FixYourOwnPrinter

Remote terminal not equipped with or not ready for confidential mailbox function. No hardware replacement is required for updating. Page 5 Turn the panel unit upside down. Not masking Masking No. Enter text from picture: Press 9,9 to exit of the mode and the machine will attempt to restart normally. Mmfc an error that occurred, whenever my printer is turn on, it just keeps printing garbage.

At the start of a disassembly job, you check the disassembly order flow that guides you through a shortcut to the object components.

Toner Sensor PU 5. When replacing the OPC serbice cartridge due to repair before its life. Page I Banding Phenomenon Banding line appears in the horizontal direction as shown in print sample [12] of Fig. It aids in understanding the basic principles of operation as well as locating defects for troubleshooting.

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OPC Reset is accessed via 1 and 7 buttons together on this model. To control the print process from the paper feed through paper exit. Got it, continue to print. Operating Procedure 1 Press the 1 and 3 keys in this order in the initial stage of the maintenance mode.

Ribbing Phenomenon Manuao print occurs on the right or left hand side of the image as shown in print sample [4] of Fig. I Mottle Phenomenon Variation of the optical density is found in the image as shown in print sample [18] of Fig. Brther 3 Open the center cover. First Transfer Belt The first transfer process means that the toner images on the OPC brotheg is transferred onto the transfer belt.

Brother print servers have two LEDs on the back panel of the machine. Also make sure the OPC left side is free of toner deposits.

Each roller is heated up to approx. Page I Insufficient Gloss Phenomenon Gloss of the print is not sufficient as shown in print sample [20] of Fig. The disassembly order flow provided enables you to see at a glance the quickest way to get to component s involved.

Main Causes 1 Retract error of the toner cartridge PU.