Braillo 400 S 3 Series User Manual Download Page 49

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4.8 Magnet rack, reﬁ tting and adjusting

Please see ﬁ gure below:

Before putting the magnet rack back on the printer, make sure that that the magnet rack itself is

adjusted as described in the previous chapter.

When replacing the magnet rack in the printer:

Put in the four fastening screws, but do not tighten them. Slide the magnet rack horisontally away from

the printer, so that the magnet rack is touching the horisontal adjustment screws. This will ensure that

the magnet rack is in exactly the same position as before it was taken off the printer.

See next chapter regarding correct adjustment of the magnet racks.

Note! All explanations refer to one magnet rack, but these adjustments must be done on all four

magnet racks.

BRAILLO

●

NORWAY AS

B 400 Series 3

Pull back against these

positioning screws

Summary of Contents for 400 S 3 Series

Page 1: ...User s Guide BRAILLO NORWAY BRAILLO 400 S Series 3 Rev September 2005...

Page 2: ...September 2005 2005 Braillo Norway AS...

Page 3: ...ep 41 4 5 Magnet replacement 43 4 6 Magnet rack cleaning 46 4 7 Magnet rack adjustment 4 7 Magnet rack adjustment 4 7 Magnet rack adjustment 47 4 8 Magnet rack re tting and adjusting 49 4 9 Beam and p...

Page 4: ...et rack board schematics 85 6 6 Operating panel 86 6 7 Pin con guration serial and parallel port 6 7 Pin con guration serial and parallel port 6 7 Pin con guration serial and parallel port 87 6 8 Esca...

Page 5: ...t system that checks the magnets continuously during printing Reliable sturdy construction Safety switches that will turn off the printer if somebody accidentally opens the cover Printer overview Plea...

Page 6: ...tive electronic and mechanical parts require a suitable installation environment to ensure long and trouble free operation Failure to meet the installation requirements may relieve the supplier of any...

Page 7: ...o Norway AS immediately Also check that the printer is accompanied with the following items 1 Power cable for the printer 2 Data cables serial and parallel 1 Serial adapter 9 25 pin 1 A small stack of...

Page 8: ...ome of these panels can be taken off for a better access e g for smaller repairs or to connect to the electrical unit However if the printer is going to be lifted or moved and the printers own wheels...

Page 9: ...C and operating panel D Note that these cables is to be disconnected at the end on the back of the operator panel Unscrew the two screws E on the paper guide where the paper is coming out of the print...

Page 10: ...cal unit Then unscrew the four screws G use a 6 mm allen key and lift the cover upwards very carefully The printer can now be moved to the desired location Please observe that it is possible to lock t...

Page 11: ...inter There are four between the baseplate and the steel frame and four between the steel frame and the printing mechanism Please see gures below Transport lock Remove this screw Remove this screw Tra...

Page 12: ...s 3 12 2 4 Mounting the paper shelfs See gure below There are two black paper shelfs with screws enclosed with the printer They are supposed to be mounted as shown on the gure below one on each side S...

Page 13: ...compatible with the local electric contact points observe that the yellow green wire is the grounding earthing wire Also make sure that you are connecting to 230 volts THE PRINTER MUST ALWAYS BE CONNE...

Page 14: ...interface and the parallel communication uses the Centron ics interface Both connectors are of the 25 pin D Sub type See gure below this is a side view of the electrical unit Connector for Parallel c...

Page 15: ...the On Off switches Turn on the main switch It will now be illuminated This switch can normally be left on all the time Put the side panels on the cover back on Press the green on switch beside the o...

Page 16: ...e slit in the paper guide Insert about the length of one sheet Go to the front of the Printer The tractors migth have to be adjusted sideways to t to the paper width in use This is done by loosening a...

Page 17: ...of the display shows the total number of printed sheets and cannot be reset The function can be compared with the total milage counter found on a car The remaining two counters Count1 and Count2 are...

Page 18: ...Ready Continue Test Print 1st push down Prints a X pattern on both sides of the sheet which shows each pin from each magnet rack printing on a separate line Useful when searching for missing dots 2nd...

Page 19: ...ROLL button ASCII table pair number one will be displayed rst If there has been a pair of ASCII tables loaded from the computer these will be displayed rst If SCROLL is released and pressed again ASCI...

Page 20: ...length we mean the physical size of a sheet of paper in inches The number of lines which can be printed on a page is dependent on whether 6 or 8 dot braille is used the selected line spacing and the p...

Page 21: ...ork as a top margin Note The page lay out must be set to normal to be able to do the following One step is equal to 0 6350 mm It will push the text downwards the sheet When the text reaches the bottom...

Page 22: ...ook like this BRAILLO NORWAY VERSION 000 50 E CURRENT VALUES COMMUNICATION SERIAL BAUD RATE 9600 PARITY NO DATA BIT 8 STOP BIT 1 SHEET LENGTH 12 LINE LENGTH 42 PRINT DOUBLE LAYOUT NORMAL PAGE 1 UP DOT...

Page 23: ...dent upon the combinations which are included in the printer Some common combinations are listed below EURO 1 931203 EURO 2 931203 EURO 3 930106 1 045 00 Denmark 1 032 00 Belgium 1 043 00 Austria 2 04...

Page 24: ...buffer and Dump Buffer is not used the text will appear at the beginning of the next print job NB Line Length Minimum 36 Char 2 When PRINT VALUES is used and the line length is set to less than 36 cha...

Page 25: ...data communication between the computer and the printer It will be necessary to press RESET printer after these The text which remains in the buffer during these alarms can be printed by using DUMP BU...

Page 26: ...essage appears in the display together with the audio alarm The reason migth be nter Error rt Motor 2 If the main motor does not start this error message is shown in the display The reason might be Ba...

Page 27: ...paper and the program system The reason might be The paper is stuck and the paper feed motor has slipped Free the paper jam push RESET PRINTER A The sensors on the paper feed might be defect or have...

Page 28: ...ber one again If you do not release the test print button the printer will continue to run the test pattern without stopping This can be useful for troubleshooting If you do release the test print but...

Page 29: ...nections are It does not refer to dot number character number or column number On power on or reset If a magnet is defective when the power is turned on or reset the printer will give an audio alarm a...

Page 30: ...t position of the magnet in the magnet rack When the printer stops the information in the display will remain until you press Reset printer If the defective magnet has not been replaced the printer wi...

Page 31: ...ver and keep it nearby the printer Please observe that the operator panel is an electrical board and MUST NEVER BE LAYED ON A CONDUCTIVE SURFACE If there is a short circuit on the board it migth damag...

Page 32: ...gure showing the parts inside the printing mechanism The printer has been sliced to show more detailed of how it is constructed BRAILLO NORWAY AS B 400 Series 3 32 PAPER B A D C NG PINS SHOR OT ARMS M...

Page 33: ...must rotate three times to form a complete row of characters Please see gure below First revolution Second revolution Third revolution To be able to print interpoint where both sides of paper are prin...

Page 34: ...afts Inside each magnet rack there are 42 electrical magnets The magnets are controlling the long pivotarms When a dot is going to be printed the magnet is engaged and the long pivot arm will be drawn...

Page 35: ...d the long pivot arm has been drawn against the magnet The short pivot arm is moving down towards the hook on the long pivot arm Figure C The long pivot arm s hook catches the short pivot arm When the...

Page 36: ...Main Belt Main Motor Magnet rack B Magnet rack A Electric unit Paper feed stepping motor Main board General overview BRAILLO NORWAY AS B 400 Series 3 36...

Page 37: ...un the built in Test Print Depending on what kind of errors you have you should use different tests The essential thing at this stage is to nd which magnet rack s is causing the trouble If there is mi...

Page 38: ...m If there are too many dots on the paper the reason might be one of the following 1 The sponge list is not pressing enough against the long pivot arm 2 The gap between the two pivot arms are too smal...

Page 39: ...ot arm Support list Magnet Magnet rack board Printing pin Sponge list short pivot arm Sponge list Magnet rack Short pivot arm Pin guide Magnet poles Gap between pivot arms BRAILLO NORWAY AS B 400 Seri...

Page 40: ...cables for the magnet rack Remove the magnet rack by unscrewing the four screws shown in the gure Magnet racks A B and C are quite easy to reach but to remove magnet rack D it is often best to rst rem...

Page 41: ...gnet racks canbe concidered as the parts of the printer that will have the greatest in uence on the dot quality so it is very important to know how to deal with them Take the magnetrack out of the pri...

Page 42: ...tlist and then remove the supportlist Step 3 Remove the two bolts holding the pivotarm fastener and then carefully remove the pivotarm fastener The magnetrack is now disassembled Supportlist Pivotarm...

Page 43: ...where the connections are It does not refer to dot number character number or column number Disassemble the magnetrack like described in chapter 4 4 Magnet rack disassembly step by step Next follow t...

Page 44: ...of needle nose pliers Magnet Step 3 Check the magnets internal resistance if you have an ohm meter available The resist ance should be from 185 ohm up to 240 ohm Any value outside this range indicate...

Page 45: ...w magnet in its place Note The spikes on one of the sides on the magnet These spikes must be oriented the same direction as the rest of the magnet s spikes in the magnet rack Note the direction on the...

Page 46: ...by step Now use a damp cloth moisted with cleaning alcohol to wipe off the surfaces as described in the gure below Magnet poles on the magnets The supportlist The iron pieces in the long pivot arms A...

Page 47: ...lling distance for the pivotarm And it should be adjusted to about 0 8 mm using a feeler gauge Adjust the nuts on both ends of the magnet rack If the 0 8 mm feeler gauge goes in and the 0 9 mm feeler...

Page 48: ...rks as a return spring for the pivot arms The correct adjustment is when the spoungelist is slightly pressing against the pivot arms but the pivot arms can still move freely Please see gure below Loos...

Page 49: ...hten them Slide the magnet rack horisontally away from the printer so that the magnet rack is touching the horisontal adjustment screws This will ensure that the magnet rack is in exactly the same pos...

Page 50: ...fect the pressure the pivot arms put on the printing pins This directly affects the shape of the printed dots To be able to adjust the magnet rack correctly it is neccesary to put the printer in print...

Page 51: ...gnet rack Then unscrew the horisontal adjustment screw a little Now slide the magnet rack outward from the printer so it touches the horisontal adjustment screws again Then thighten the four fastening...

Page 52: ...ay to nd the correct level of vertical adjustment is to rst decrease the pressure so the dots will be very faded and weak Then readjust the pressure up in small steps until the dot quality is satisfac...

Page 53: ...hese screws Adjust upwards by loosening the upper nut and then tighten the lower Note Adjust in small steps only 1 4 of a revolution at a time Then test the braille quality BRAILLO NORWAY AS B 400 Ser...

Page 54: ...observe that magnet rack A and B must be moved upwards to increase the pressure and magnet rack C and D must be moved downwards to increase the pressure Moving away from the paper increases pressure B...

Page 55: ...ee the gures below U UP PP PE ER R U UP PP PE ER R L LO OW WE ER R L LO OW WE ER R Upper Beam Upper Papershoe Lower Papershoe Lower Beam Adiprene springs Return spring blue Return spring green Plastic...

Page 56: ...t should be done in this order 1 Remove the paper feed assembly 2 Remove the outside paper guide 3 Remove the inside paper guide 4 Remove magnet rack A and B 5 Remove the belt 6 Remove the top frame B...

Page 57: ...belt This is done by loosening the belt tensioner s screws When this is done the belt can be lifted off the upper cogwheel Please see gure to the right Loosen these two screws to take off the belt 6...

Page 58: ...rt pivot arms there are 21 pcs on each shaft 2 Pull out the shaft and replace the short pivot arm s Assembly is done in reverse order Note When putting the short pivot arms back into the beam be sure...

Page 59: ...e Before the parts are separated make sure that the beam is held with the printing pins hanging down Place the pinguide with the pins on a table do not turn it upside down or all the pins will fall ou...

Page 60: ...rect position See the marks at the end of the shafts the arrows must point directly towards each other like in the gure below Then the springs can be adjusted to the correct length i e 68 mm Note It i...

Page 61: ...end of the shafts 1 are pointing towards each other See gure below If the marks are not aligned like in the gure it might be necessary to move the belt a notch or two on one of the wheels This is done...

Page 62: ...he inner eccentric bearing 4 until the paper shoes P have a light pressure on the paper Check that the gap 5 between the press plates and the beam above is equal on both upper and lower units Secure t...

Page 63: ...the gure below Do not press The edge on the timing wheel should now be placed exactly like position C in the gure below If the edge is not in it s correct position it must be adjusted Keep the shafts...

Page 64: ...arking position and where the stepping motor is parking Loosen the paper feed shaft by unscrewing the two left hand screws B on the sensor wheel Note Do not loosen the screws for the stepping motor sh...

Page 65: ...able enters the sensor Inside the sensor is a little LED lamp that will be lit if a magnetic object is in front of the sensor The light comes out through some transparent plastic around the cable So b...

Page 66: ...ons like this A little infrared lamp is sending ligth downward If there is paper present the ligth will be re ected back and detected by a photo transistor If the sensor is defective it must be replac...

Page 67: ...eck the sponges for the long pivot arms on the four magnet racks the sponge should be able to keep the long pivot arms pressed against the support list When putting the magnet racks back in check all...

Page 68: ...000 running hours or approx once a year Lubricate all items marked 1 on the gure below These are the only locations in the printer grease may be applied Use a universal grease with molybdensul d BRAIL...

Page 69: ...agnet rack 2 Magnet rack 1 3 Support list magnet rack 3 Support list magnet rack 3 Support list magnet rack 1 4 Shaft long pivot arm 1 5 Pivot arm long 42 6 Electronic board magnet rack 6 Electronic b...

Page 70: ...ty pr beam 1 Stroke ball bearing 20 2 2 Beam upper and lower 1 3 Fastener for shaft short pivot arm 4 4 Sponge list for short pivot arm 2 5 Pin guide 1 6 Short pivot arm 84 7 Printing pin length 64 5...

Page 71: ...paper shoe upper and lower Pos Name Quantity pr shoe 1 Retaining ring 4 2 Adjustment screw push rod 2 3 Stroke ball bearing 20 2 4 Spacer 2 5 Paper shoe upper and lower 1 6 Plastic shims 4 BRAILLO NOR...

Page 72: ...paper feed Pos Name Quantity 1 Paper feed tractor 2 2 Belt for tractor 2 3 Inductive sensor no 5 and 6 2 4 Timing wheel 1 5 Stepping motor 5 Stepping motor 5 Stepping motor 1 BRAILLO NORWAY AS B 400 S...

Page 73: ...640 L 2 Belt 640 L 1 3 Cog wheel 40 L 100 2 4 Belt tensioner 2 5 Cog wheel 22 L 100 1 Direction of rotation BRAILLO NORWAY AS B 400 Series 3 73 1 2 3 4 5 How to get the cog wheel off the shaft Unscrew...

Page 74: ...ame Quantity pr shaft 1 Main bearing with housing 2 2 Nut KM5 2 3 Bearing outer eccentric 6205 2Z 2 4 Nut KM6 2 5 Bearing inner eccentric 6006 2Z 2 6 Shaft 1 Shaft exploded view BRAILLO NORWAY AS B 40...

Page 75: ...bottom frame exploded Pos Name Quantity pr frame 1 Locking ring 22 4 2 Stroke ball bearing 12 2 3 Locking ring 16 4 4 Stroke ball bearing 8 2 5 Frame 1 6 Spacer 22 2 7 Spacer 16 2 8 Push rod 12X56 2...

Page 76: ...Frame exploded view BRAILLO NORWAY AS B 400 Series 3 76...

Page 77: ...BRAILLO NORWAY AS B 400 Series 3 77 Paper guides...

Page 78: ...0 printed pages per hour Electrical Voltage Single phase 220V 10 50 60 Hz Current Approx 5 A max Fuse Printer 10 A Power Approx 1000 W max Communication with the computer Parallel on Centronics 25 pin...

Page 79: ...ower to magnet racks 3 15 AT Main switch Key switch for safety switches on the cover Fuses for on off switch circuit Fuse for relays inside the el unit Fuse for 24 V supply to the main board External...

Page 80: ...Electric unit schematics BRAILLO NORWAY AS B 400 Series 3 80...

Page 81: ...1 2 3 4 5 6 7 8 Gnd 24V 24V Signal paper cutter Signal paper cutter Base Collector Emitter 9 10 11 12 13 14 15 Alarm out 5V Gnd 5V Alarm input 3 15 AT Switches Safety Enabled Outlet Fan Disabled Fan...

Page 82: ...ROLL 8765 987654 Serial Parallel Data Power 5V 12V Power 24V El Unit Paper feed stepping motor Main sensor 7 Paper feed sensor 6 Out of paper sensor 4 Paper feed sensor 5 Data Magnet rack D Data Data...

Page 83: ...HC14AN MC74 9 9 8 U20 4 U1 10n 8 1 11 6 C75 9 1 2 4 3 12 9 17 16 10 8 11 RTS TxD DCD DSR CTS RxD DTR HCT04AN ACIA OP4 Vb A2 9 14 7 1 0k C57 R3 13 12 560 1u 7 4 7k 0 1n 0 3 msek 9 Vref 0 1u 0 18 2W 15...

Page 84: ...ESET D7 D6 D5 D4 D3 D2 D1 D0 RES 2 CS2 R W IRQ CS1 26 28 29 30 31 32 33 35 36 37 38 34 25 23 22 21 24 27 RS3 RS2 RS1 RS0 D7 D6 D5 D4 D3 D2 D1 D0 RES 2 CS2 R W IRQ CS1 26 28 29 30 31 32 33 35 36 37 38...

Page 85: ...3 CSB A A SI MC74 MC74 MC74 MC74 SW2 SW1 X X U4 5V R3 10k U3 Q1 Q1 T1 T2 CD A B 1 2 3 4 5 6 7 Q2 Q2 T1 T2 CD 2 B 15 14 13 11 10 9 Vcc 16 8 1 29 3 65 5 31 7 57 9 33 11 C2 1n 13 35 15 55 17 37 19 67 21...

Page 86: ...120p C6 120p MC74HC14AN 12 13 270 C7 120p R7 Rn1 2 2k Rn1 2 2k Rn2 2 2k Rn2 2 2k 1 2 3 4 5 6 7 8 9 1 2 3 4 5 9 8 7 6 10 Tables ASCII 5V 5V J1 HARTING 36 pol har mik Bellows straight Female No 60 11 0...

Page 87: ...ready Input Pin no 7 GND Signal ground Pin no 8 DCD Data carrier detect Input Pin no 9 PU 12V Logic high Output Pin no 20 DTR Data terminal ready Output The printer is only using pin no 4 RTS as a con...

Page 88: ...Data 2 Input Pin no 5 Data 3 Input Pin no 6 Data 4 Input Pin no 7 Data 5 Input Pin no 8 Data 6 Input Pin no 9 Data 7 Input Pin no 10 Acknowledge Output Active low Pin no 11 Busy Output Pin no 12 Paper...

Page 89: ...an be placed wherever needed If there is a command on the other pages it will be skipped All page formatting which is done on the front page will also format the back of the same sheet It is for examp...

Page 90: ...027 065 050 049 1B 41 32 31 11 0 027 065 050 050 1B 41 32 32 11 5 027 065 050 051 1B 41 32 33 12 0 027 065 050 052 1B 41 32 34 12 5 027 065 050 053 1B 41 32 35 13 0 027 065 050 054 1B 41 32 36 13 5 0...

Page 91: ...077 048 053 1B 4D 30 35 6 1 9050 027 077 048 054 1B 4D 30 36 7 2 2225 027 077 048 055 1B 4D 30 37 8 2 5400 027 077 048 056 1B 4D 30 38 9 2 8575 027 077 048 057 1B 4D 30 39 10 3 1750 027 077 049 048 1B...

Page 92: ...084 048 048 1B 54 30 30 1 0 6350 027 084 048 049 1B 54 30 31 2 1 2700 027 084 048 050 1B 54 30 32 3 1 9050 027 084 048 051 1B 54 30 33 4 2 5400 027 084 048 052 1B 54 30 34 5 3 1750 027 084 048 053 1B...

Page 93: ...all text in one volume has been transmitted to the Printer If text corresponding to less than two pages or text with an odd number of pages is received and not followed by FF on the last page the Pri...

Page 94: ...produced in accordance with the Council Directive of 19th February 1973 73 23 EEC on the approximation of the laws of the Member States relating to equipment used within certain voltage limits The low...

Page 95: ...uake etc damaging the product Should a replacement part be required please do the following Send us a Warranty request form Please refer to the next page to see the actual form The form can also be fo...

Page 96: ...return Comments Return to Braillo Norway A S Wesselveg 1 7500 Stj rdal Norway Phone number 47 74 84 04 40 Fax number 47 74 84 04 41 E mail service braillo no If this document is not returned within t...

Page 97: ...Mail P O Box 447 3101 T nsberg Norway Phone 47 33 00 28 70 Telefax 47 33 00 28 71 e mail braillo braillo no Service Braillo Norway AS Of ce Wesselsvei 1 Stj rdal Mail P O Box 93 7501 Stj rdal Norway...

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