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

The latter half of this chapter provides sample problems that could occur in the main sections of the machine and related troubleshooting procedures. The CIS unit first moves to the white-level reference film for white level compensation and then to the ADF scanning manua. Default resolution These selectors set the default resolution which applies when the machine is turned on or completes a transaction.

Operating Procedure 1 Press the 8 and 0 keys in this order in the broyher stage of the maintenance mode. Page I Vertical Line Phenomenon Vertical line appears in the printed image as shown in print sample [10] of Fig.

Extension of incoming calling signal CI frequency band specified by selectors 1 through 4 on WSW14 At the start of reception, if the machine detects the frequency of a CI signal specified by selectors 1 through 4 on WSW14, it starts the ringer sounding.

Pause between paging number 8 sec. Fixed to 16 points Sending level of guard tone at 0: Always implement the operation when replacing the engine control board. Selectors 5 through 7 are applicable to the U. 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.

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Page Background Phenomenon Background is smeared due to toner spread as shown in print sample [1] of Fig. The machine checks and sets the area to be scanned. Uploaded on Feb 26, The toner image that has been transferred onto the paper is simply adhered on the paper but not fused yet. Operating Procedure 1 Select Next Life Set with using the 4 or 5 key in the initial stage of the factory mode.

FAX can’t be received. Page Even country setting is set already, the customer can change the setting when the machine is turned on.

The following message appears in LCD of the control panel. Escape from phase C 0: 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.

Brotherrpages It is not changed. I Residual Image Phenomenon Image of the preceding page appears on every other page as shown in print sample [20] of Fig. Transfer roller sensor No transfer roller detected. It aids in understanding the basic principles of operation as well as locating defects for troubleshooting.

Paper Transportation System 3.

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Pressure roller shaft Ejection roller Ejection roller Fig. Main Causes 1 Toner drops on the transfer belt due to the breakdown of the waste toner auger. You were absolutlely right but this error shows up nowhere else on the net, how come you know about it? PC Power-off Recognition Time 0: No detection 0 0 0 1: When toner images are formed on the transfer belt through the operations of print system and transfer system, a paper is fed by the paper feed roller and transported to the registration roller.

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Replace K Kit It is time to replace the K kit. Specifications are subject to change without notice. Delay time from when 0 1 0: Yellow toner empty The yellow toner Replace the yellow toner Page 81 1 ADF scanning: Remote terminal not ready for polling.

Brother – servicemanual

Most probably faulty Belt or Motherboard. Page [ 7 ] Next Life Set Code 49 Function This function is to set the replacement timing print pages of the periodical replacement parts. ON recommendation Not used.

These free programs can be found on this page: Privacy Policy Terms of Use. Make sure that the machine is powered on, is on-line and ready 9420cj print. Nem dobtam el, mostanig oriztem, mert nem volt idom ra. ST3x6 with washer Fig.

94220cn Lifepages Although the indication of the pick-up roller which is used in printing is not changed, the indication of the other one which is not used is increased in accordance with the number of print pages.