BROTHER M4318 PRINTER

FECO BRO # 1

	FECO:	BRO # 1
	MODIFICATION No:	N/A
	PRODUCT:	BROTHER M4318 PRINTER
	SUB-ASSEMBLY	N/A
	ESTIMATED MAN HOURS	N/A
	CLASS OF CHANGE:	INFORMATIONAL
	REASON FOR CHANGE:	TO INTRODUCE AND LIST STANDARD SETTINGS FOR THE BROTHER M4318 PRINTER

1. Introduction

The brother M4318 printer has been introduced and is already installed in some customers. The diagrams
are shown below.

(tech serv ref 96/09)

2 Specification

3 Mec identity

The mec identity is bro-4318(p+s)

4 Installation of ribbon cassette

Note ribbons may be replaced whilst the cassette is re-used.

Beware!! Wear on the cassette drive cogs, will give problems.

5 Set up

5.1 Buttons used

Functionenter/exit setup

Menuselect setup menu

Itemselect setup item

Change setup item

Setmake displayed item active, setting

(* denotes active setup item)

5.2 Sequence

Power on

Press sel to go off line

Press function to enter setups

Default, use menu switch to display reset factory set

Press item switch then press set switch

Set other parameters as listed in 5.3

Exit set up

5.3 Standard settings

Font menucontrol menu

Print mode drafthead adjust auto

Draft style normalacsf head at tray change

Pitch 10 cpicarriage escape invalid

Nlq font romansheet type single

Ribbon select blackprint direction by command

Quiet mode invalid

Tear off invalid

LCD language english

LCD contrast 3

Emulate menuinterface menu

Emulation mode epsoninterface serial

Character set set 2baud rate 9600

International u.k.2data length 8 bit

Scandinavian invalidparity none

Zero character unslashedprotocol xon/xoff

Stop bit 1 bit

Input buffer 32k

Format menuprint style menu

Lf pitch 6lpicopy mode no

Page length 11-0/6"italic no

Forms

Auto lf with invalidemphasize no

Skip nodouble strike no

Perforation

First print 13/12"double width no

Line forms

First print 9/12"double height no

Line sheet

Left margin 1script normal

10cpi

Right margin 136

10cpi

Justification left

6paper loading

6.1 Selecting the paper loading mode

        The paper loading mode (sheet, forms, or bottom) needs to be selected with the paper select switch. The
        selected loading method is displayed on the right upper corner of the lcd display. There are four types of
        paper loading methods available:

Sheet mode

1. Loading cut sheet paper by friction feed

2. Loading cut sheet paper with the optional

Auto cut sheet feeder

Forms mode

3. Loading continuous forms paper from the rear

With the built-in tractor feeder

Bottom mode

4. Loading continuous forms paper from the bottom with the optional pull-up tractor feeder.

6.2 Cut sheet paper

6.2.1 Ensure that no continuous form paper is loaded in the printer.

6.2.2 Raise the sheet guide if it is down. Move the paper stopper to the desired position.

6.2.3 Turn the printer on.

With no paper loaded in the printer, the display shows the message "paper empty" and the check lamp
lights to indicate that the printer is out of paper. This state is called "paper empty".

6.2.4 Make sure that the printer is off-line and the on line lamp is off.

6.2.5 Set the paper loading mode to "sheet" with the paper select switch if it is not the "sheet" mode already.

6.2.6 Place a cut sheet on the sheet guide and push it lightly until it stops.

Note-the paper should not be slanted when loading.

6.2.7 Adjust the paper stopper so that the sheet fits snuggly between the stoppers. The paper stoppers should
be as close as possible to the paper without touching it.

6.2.8 Press the tof (top of form) switch.

        The paper is automatically loaded into the printer, providing the specified top margin. The print start
        position is factory set to 3/4" from the top edge of the paper. It can be changed from 3/12" to 13/12" in
        1/12" increments with the control panel switches in the function mode.

6.2.9 Press the sel switch to set the printer on-line.

The on line lamp is on. Data can now be sent from the computer to the printer, to print it out.

6.2.10 When printing is finished, press the sel switch to set the printer off-line.

6.2.11 Press the eject switch

The printed paper is ejected. The message "paper empty" appears and the check lamp lights to remind you
to load another sheet of paper. When necessary, load paper to continue working.

6.3 Continuous forms

6.3.1 Continous forms can be used with the single bin auto cut sheet feeder installed. However if a dual bin auto
cut sheet feeder has been installed, it must be removed before continuous forms can be fed.

6.3.2 Ensure the printer is powered off and the rear cover is open.

6.3.3 Push and release the tractor locks and move the right and left tractor units to match the width of the
paper.

6.3.4 Open the tractor doors and line up the continuous form paper over the sprockets. Close the doors.

The tractor sprockets must be aligned with the holes of the continuous form paper.

6.3.5 Pushing the tractor locks again, move the tractor units slightly, if necessary, to match the paper width.
Release your finger to lock the tractor units.

Caution-

Be careful not to stretch the paper too tightly. Check to be sure that the paper is not set too tightly as
follows:

* open the tractor doors and remove the paper temporarily.

* set the paper again and make sure that the paper holes can be easily engaged with the sprockets
without releasing the tractor locks and moving the tractor units.

6.3.6 Close the rear cover.

6.3.7 Make sure that the sheet guide is lowered. If it is raised, flip it down.

Note- when you use multi-part continuous form paper with the push tractor feeder, it is recommended
that you raise the sheet guide.

6.3.8 Turn the printer on.

With no paper loaded in the printer, the display shows the message "paper empty" and the check
lamp is light to indicate that the printer is out of paper. This state is called "paper empty".

        The paper is automatically loaded into the printer, providing the specified top margin. The print start
        position is factory set to 13/12" from the top edge of the paper. It can be changed from 3/12" to 13/12" in
        1/12" increments with the control panel switches in the function mode.

6.3.9 Make sure that the printer is off-line and the on line lamp is off.

6.3.10 Set the paper loading mode to "forms" with the paper select switch if it is not already in the "forms"
mode.

Note- if the "forms" mode is not selected, the paper selection error is displayed.

6.3.11 Press the sel switch to set the printer on-line.

The on line lamp is on. Datai can now be sent from the computer to the printer, to print it out.

6.3.12 When printing is finished, press the sel switch to set the printer off-line.

6.3.13 Set the tear off or paper parking functions as necessary. Para 6.4 and 6.5.

6.4 Tear-off function

6.4.1 When printing is finished, press the sel switch to set the printer off-line.

6.4.2 press the tof switch.

6.4.3 open the acoustic cover.

6.4.4 tear off the final printed sheet along perforation.

Align the perforation with the edge of the window cover and tear off the paper.

6.4.5 close the acoustic cover.

6.4.6 press the sel switch again.

Then the paper will be fed to the top of form position, where printing on the next page will start.

6.4.7 the printer is designed to provide a 13/12"top margin as set by the factory default. The first print line can
be changed from 3/12"to 13/12" in 1/12" increments with the control panel switches in the function mode.

6.4.8 if you tear off the paper as described above, but you want to start printing at a distance other than
        13/12" from the cut perforation (or you change the top margin), you need to turn the tear-off function on,
        with the control panel switches in the function mode; otherwise, the next page will not start on the
        desired line.

6.5paper parking function

6.5.1 you can load cut sheet paper without removing the continuous forms paper from the printer.
You can reverse the continuous paper and park it in the tractor feeder. This is called the "paper parking"
function. Note that this function is not available with the optional pull tractor.

6.5.2 make sure of the following:

* continuous forms paper is loaded in the printer.

* the forms mode is selected.

* the printer is off-line (the on line lamp is off).

6.5.3 press the eject switch to reverse the continuous forms paper to the push tractor feeder.

6.5.4 select the sheet mode with the paper select switch.

Cut sheet paper can now be loaded to print.

6.5.5 when printing on cut sheet paper is finished, eject the printed paper and select the forms mode again
with the paper select switch.

Continuous forms paper can be selected again, by pressing the tof (top of form) switch to load the
continuous forms paper.

7self test

7.1.draft mode press sel and power on

7.2.hs draft mode press lf and power on

7.3.all print mode press eject and power on

7.4.in self test pressing sel suspends and resumes the test. Turning off the power terminates the test.

8.maintenance

8.1.external fuse

There is an external fuse fitted, just below the power input connector.

8.2.cover removal (top rear & body)

8.2.1 make sure that no form is present in the printer.

8.2.2 turn off the power switch and disconnect the power cord from the printer.

8.2.3 turn up the top cover and pull it upwards.

8.2.4 pull up the ribbon guide and remove the ribbon cassette.

8.2.5 pull out the platen knob.

8.2.6 turn up the rear cover to the vertical position and remove it towards the rear of the printer.

8.2.7 remove the four screws and take the body cover up and out of printer.

8.3switch panel cover removal

8.3.1 remove the body cover.

8.3.2 open the ribs provided on the bottom cover and slide the chassis pressure plate outwards.
There is one each side of the front end of the chassis,

8.3.3 raise the front end of the chassis unit and support it with the platen knob.

8.3.4 disengage the hook of the switch panel cover from the bottom cover in the direction of the arrow shown in
figure 3.12. Then, remove the switch panel cover by tilting it towards the front of the printer as shown in
figure 3.13 while taking care not to damage the cover switch harness.

8.3.5 disconnect the cover switch connector from the switch panel pcb.

8.3.6 disconnect the switch panel harness from the main pcb by opening the connecter locks. This completes
the removal procedure of the switch panel cover.

8.4chassis unit removal.

8.4.1 remove the switch panel cover.

8.4.2 disconnect all of the connectors from the main pcb except for the interface cable connector and the dc
power supply connector.

8.4.3 remove the platen knob and lower the front end of chassis unit.

8.4.4 remove the rear chassis pressure plates. Figure 3.10.

8.4.5 grasp both ends of the chassis unit as shown in figure 3.18 and slowly lift it up and out of the bottom
cover, taking care not to bump the chassis unit against the cover switch.

8.5main pcb removal

8.5.1 remove the switch panel cover.

Make sure that end of the chassis unit is supported with the platen knob and that the rear end is locked
with the rear chassis pressure plates.

8.5.2 disconnect the print head cable and all of the harness connectors from the main pcb.

8.5.3 remove the screw (e) from the main pcb.

8.5.4 unhook the latch (f) and take the main pcb up and out of the bottom cover.

8.6.interface pcb removal

8.6.1 remove the switch panel cover.

Make sure that the front end of the chassis unit is supported with the platen knob and that the rear end is
locked with chassis pressure plates. (see figure 3.19.)

8.6.2 disconnect the interface cable connector from the main pcb and take out the cable from the shell clip.

8.6.3 remove the platen knob and lower the front end of the chassis unit, taking care not to pinch the
disconnected interface cable between the chassis unit and the bottom cover. Lock the front end of the
chassis with the two chassis pressure plates.

8.6.4 remove the two rear chassis pressure plates, raise the rear end of the chassis unit,and support it with the
platen knob as illustrated in figure 3.24.

8.6.5 remove the two screws (h) from the interface pcb.

8.7switch panel pcb removal

8.7.1 remove the switch panel cover.

Make sure that the front end of the chassis unit is supported with the platen knob and that the end is
locked with the rear chassis pressure plates. (see figure 3.19).

8.7.2 remove the two screws (i).

8.7.3 unlatch the four hooks and take the switch panel pcb off the switch panel cover.

8.8power supply removal

8.8.1 remove the top cover, rear cover, and body cover.

8.8.2 remove the switch panel cover.

Make sure that the front end of the chassis unit is supported with the platen knob and that the rear end is
locked with the rear chassis pressure plates. (see figure 3.19)

8.8.3 disconnect all of the connectors from the main pcb except for the interface cable connector. (refer to
figure 3.22)

8.8.4 remove the chassis unit from the bottom cover. (refer to section 3.3)

8.8.5 remove the two screws (m) securing the ac harness cover. (see figure 3.37)

8.8.6 remove the screw (n) securing the ac harness cover.

(see figure 3.37)

8.8.7 remove the power switch from the bottom cover.

8.8.8 take the dc power supply harness out of the shell clip. (see figure 3.34)

8.8.9 as shown in figure 3.34, slide the power supply unit to unlatch it from the hooks provided on the bottom
cover, then lift it up and out of the bottom cover.

8.9print head replacement

8.9.1 turn up the top cover and pull it upwards.

8.9.2 pull up the ribbon guide and remove the ribbon cassette.

8.9.3 remove the two screws (a) securing the print head.

8.9.4 disconnect the head cable connector by opening the locks as shown.

8.9.5 if the print head is replaced with a new one, apply some floil 946p packed with the new head to each of
the two holes in the carrier.

8.9.6 connect the head cable to the print head and lock the connector. (refer to figure 3.3)

8.9.7 place the print head on the carrier.

8.9.8 while pressing the print head towards the front of the printer, tighten the two screws (a).

8.9.9 make sure that the contact face of the print head is tightly fitted onto that of the carrier.

8.9.10 for those models equipped with the automatic head-adjust mechanism, make the head property
compensation by referring to para.8.11. Now set the head-platen gap, para.8.10.

8.10head-platen gap

8.10.1 note:in the service mode (see para 9) as well, the cover switch works to detect a cover-open error.
Therefore, insert a flat screwdriver or the like as shown in figure 4.2 to make the cover switch inoperative
during the gap adjustment works shown below.

8.10.2 note:before starting the gap adjustment works, make sure that no paper is in the printer. Gap adjustment
with paper remaining in the printer will produce an incorrect setting.

8.10.3 if the main pcb***, carrier, carrier sleeve, or automatic head-adjust mechanism is replaced with a new
one, adjust the gap between the print head and the platen according to the steps below:-

(*** if the eeprom is transferred from the old main pcb onto the new one, no adjustment work below is
required.)

8.10.4 place the printer in the service mode (see para 9), by turning on the power switch while holding down the
function, item, and eject switches.

The function lamp will flash and the "option select" will appear on the lcd.

8.10.5 press the menu switch.

The "adjust head gap" will appear on the lcd.

8.10.6 press the item switch.

The "head gap l = xx*" will appear on the lcd.

8.10.7 compare the head nose length (l = xx) shown on the lcd with the figure printed on the actual print head.

If the displayed value is different from the actual nose length, use the up or the down arrow switch to
correct it to the actual value.

8.10.8 press the set switch.

        (if paper is present in the printer, an ejecting operation takes place according to the current paper load
        mode and then the print head will be retracted. However, if the paper remains after the ejecting
        operation, remove the paper by pressing the eject switch or rotating the platen knob. Then, press the set
        switch again.)

The printer presses the print head against the platen and retracts it according to the standard adjustment
value n previously stored in the eeprom.

The "head gap n = xxx*" will appear on the lcd.

8.10.9 use the up or down arrow switch to align position "1" on the manual head-adjust gear with the pointer
of the head-adjust scale.

        Each time the down arrow switch is pressed, the nominal value n is reduced by one pulse and the print
        head shifts towards the platen; each time the up arrow switch is pressed, n is added by one pulse and the
        print head shifts away from the platen.

8.10.10 press the set switch.

The new nominal value n, head nose length l, number of pulses, and others will be written onto the
eeprom.

8.10.11 to escape from the service mode, turn the power switch of and on. To proceed to other adjustments,
press the menu switch.

8.11head platen gap compensation

8.11.1 this compensation work should be carried out in the function mode, prior to replacing the platen or
checking the head-platen gap.

8.11.2 turn on the power switch.

8.11.3 if the printer is online, press the sel switch to make it go offline.

The on line lamp will go off.

8.11.4 press the eject switch to retract or eject paper.

8.11.5 press the function switch .

The function lamp will come on.

8.11.6 press the menu switch six times.

The "adjust head gap menu" will appear on the lcd.

8.11.7 press the item switch.

The "head gap l = xx*" will appear on the lcd.

8.11.8 press the set switch.

8.11.9 to escape from this mode, press the function switch.

9.service modes.

9.1the service modes allow the service personnel to make the following adjustments which are essential after
the printer undergoes maintenance. In the offline service mode, use the switch panel to access the
settings in the eeprom; in the offline mode, enter new settings with commands.

(1) main pcb setting for the optical mechanisms.

(2) gap between the print head and platen.

(3) paper cutting position.

(4) top-of-form position.

(5) print start position.

(6) vertical character alignment in bidirecional printing.

(7) ribbon shift amount.

The above adjustments are required if the eeprom on the main pcb, the print head, or the platen is
replaced or other sections are serviced.

9.2off line service mode>

To make the printer enter the offline service mode, turn on the power switch while holding down the
function, item, and eject switches.

To escape from this mode, turn the power switch off and then on.

9.3detailed description of offline service-mode facilities.

9.3.1 main pcb setting for the optional mechanisms.

        If the main pcb is replaced with a new one, match the new main pcb to the printer relating to whether or
        not the printer is equipped with the automatic head-adjust or ribbon shift mechanism, according to the
        steps below: (if the eeprom on the pcb is not replaced, no setting operation below is required.)

9.3.2 place the printer in the offline service mode, by turning on the power switch while holding down the
function, item, and eject switches.

The function lamp will flash and the "option select" will appear on the lcd.

9.3.3 press the item switch.

The "head adjust xxx*" will appear on he lcd.

9.3.4 use the up or down arrow switch to select "yes" if the printer is equipped with the automatic head-adjust
mechanism; or to select "no", if no such mechanism is fitted.

9.3.5 press the set switch to save the new setting into the eeprom.

9.3.6 press the item switch.

The "ribbon shift xxx*" will appear on the lcd.

9.3.7 use the or switch to select "yes" if the printer is equipped with the ribbon shift mechanism; to select "no",
if no such mechanism.

9.3.8 press the set switch to save the new setting into the eeprom.

9.3.9 to escape from the service mode, turn the power switch off and on. To proceed to other adjustments,
press the menu switch.

Return to Index