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BRAILLO 

M

 NORWAY AS

B 200

45

3.14 Inductive Sensors, Replacing and Adjusting

When replacing the sensors, the gap between the sensor wheel and the sensors can be maximum 0.6 mm.
See figure below.

Summary of Contents for 200

Page 1: ...INSTRUCTION MANUAL BRAILLO 200 BRAILLO M NORWAY FOR BETTER BRAILLE AND MORE Rev 9705 ...

Page 2: ......

Page 3: ... Rack Disassembly Assembly and Adjusting 34 3 6 Magnet Rack Figures 35 3 7 Magnet Rack Printing Process 37 3 8 How to Replace Short Pivot Arms 38 3 9 Return Springs Adjustment 40 3 10 Eccentrics Adjustment 41 3 11 Paper Shoes Adjustment 42 3 12 Main Sensor Wheel Adjustment 43 3 13 Paper Feed Mechanism Adjustment 44 3 14 Inductive Sensors Replacing and Adjusting 45 3 15 Paper Sensor Replacing 46 3 ...

Page 4: ...BRAILLO M NORWAY AS B 200 ...

Page 5: ...eenvironmentalconditions Temperatures between15 30 C 60 86 F and relative humidity between 40 and 60 Maintain a clean environment because dust mayclog the Printer especially with high humidity Too low humidity should also be avoided to prevent electrostatic problems Some paper qualities may generate excessive paper dust This should be removed with a vacuum cleaner and a damp cloth About every 50 0...

Page 6: ...oved by turning the two screws V 1 4 of a revolution use a coin or a screwdriver Pull out the upper edge first and then lift the side panel up and out Place it aside Disconnect the cables for the Operating Panel G and the Fan H The cover can now be carefully removed by lifting the end with the fans slightly up and over on to the baseboard This small forward movement will free the side panel end of...

Page 7: ...BRAILLO M NORWAY AS B 200 3 Removal of Cover Figures ...

Page 8: ...r see chapter 2 1 Operating Panel To make changes on your computer consult the user manual If changes in the transmission settings are to be done on the computer we recommend that these changes are added in the start up file AUTOEXEC BAT so that they occur automatically with each startup The command for this might be MODE COM1 96 N 8 1 P Parallel communication Connect the enclosed cable ensure tha...

Page 9: ...han one page of text and depress Dump Buffer Connecting the Printer to the Mains and Computer See the figure below Connect the enclosed mains power cable to the inlet L If the plug on the mains power cable is to be replaced observe that the yellow green wire is the ground earth wire With parallel communication use connector R With serial communication use connector S A Fuse magnet rack A B Fuse ma...

Page 10: ...BRAILLO M NORWAY AS B 200 6 ...

Page 11: ...ccurred and the display will show what has happened There are three sheet counters The one at the right hand side of the display shows the total number of printed sheets and cannot be reset The remaining two counters Count1 and Count2 are displayed one at a time on the left hand side of the display and can be reset ...

Page 12: ... COUNT1 COUNT2 TEST PRINT This button has two functions Test Print and Ready Continue Test Print 1st push down Printsa X pattern on both sides ofthe sheet which shows each pin fromeach magnet rack printing on a separate line Useful when searching for missing dots 2nd push down Prints full cells and empty lines together with the ASCII table on both sides of the sheet Useful for testing the printing...

Page 13: ...or the 8 dot mode To select from the 8 resident ASCII tables in the Printer the following procedure should be used Push the ASCII tables button release it then push it once again and hold Now it is possible to change the active ASCII tables with the SCROLL button ASCII table pair number one will be displayed first If there has been a pair of ASCII tables loaded from the computer these will be disp...

Page 14: ...and the setting Max 4 is selected the resulting number of lines will be 25 This function will centre the text vertically on the page to keep the top and bottom margin approx equal The Page Margin function will adjust the page margin in steps from 0 to 20 The standard setting is 8 8 normal The page margin willgive different effect when used on single sided compared withdouble sided On double sided ...

Page 15: ... the current values can be changed The first push of a menu button shows which setting is currently active its current value If these settings are correct wait a few seconds for the timeout to expire or press the RESET PRINTER button and the setting will remain If you would like to change one of the settings push the button several times until the desired function is shown on the display then hold...

Page 16: ...BRAILLO M NORWAY AS B 200 12 2 2 Current Values and Options ...

Page 17: ...s change the line length to min 36 characters Print Values might look like this BRAILLO NORWAY VERSION 000 19 D 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 6 LINE SPACING NORMAL LINE SING DOUB SINGLE PAGE ADJUST MAX PAGE MARGIN NORMAL SHEET COUNTER 1 87654321 ASCII TABLE NO 2 ENGLAND 6 DO...

Page 18: ...I tables listed will be dependent upon the combinations whichare 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 2 044 00 England 2 044 00 England 2 042 00 Czech Slovakia 3 049 03 Germany 3 033 00 France 3 044 00 England 4 049 04 Germany 4 049 03 Germany 4 049 03 Germany 5 354 00 Island 5...

Page 19: ... job 2 When PRINT VALUES is used and the line length is set to less than 36 characters this message will appear on the display To print the current values first set the line length to 36 characters or more Alarms 1 When the Printer runs out of paper the audio alarm is sounded and the Printer stops at the end of the next page To continue printing press RESET ALARM and then TEST PRINT after the pape...

Page 20: ...e buffer to overflow The text which remains in the buffer can be printed by using DUMP BUFFER If this alarm occurs check the transmission parameters for both the Printer and the computer and also possibly the software in use 5 Error in at least one of the following transmission parameters Baud rate no of data bits and or no of stop bits If this alarm occurs check the transmission parameters for bo...

Page 21: ...k the belt and replace if needed 2 If the main motor does not start this error message is shown in the display The reason might be A The motor is not connected Check that the cable to the motor is connected B The motor fuse may have been released Reset motor fuse See figure in chapter 5 2 Electric Unit C System error 3 The main motor does not stop The reason might be A The motor relay contacts hav...

Page 22: ...ch if the printer is not already switched on Red power lamp lights up 2 Place a box of paper at the back of the Printer Opposite from the operating panel 3 Insert the paper between the two knobs and then through the slit in the paper guide Insert about the length of one sheet Go to the front of the Printer Lock the paper into the tractor feed By using the FINE ADJUST button adjust the paper with r...

Page 23: ...eet which shows each pin from each magnet rack printing on a separate line Useful when searching for missing dots 2nd push down Prints full cells and emptylines together with the ASCII table on both sides of the sheet Useful for testing the printing pressure adjustments and to see how the paper can take heavy printing 3rd push down Printsfull cells and emptylines together with the ASCII table sing...

Page 24: ...the Printer receives ASCII 27 it knows that this code and one or more of the following codes are not text but commands This makes the Printer stop writing characters and begins performing the commands How to make escape sequences How to make an escape sequence depends on the computer and the software being used To make an escape sequence the ASCII value 27 hexadecimal 1B is needed This is the esca...

Page 25: ...to 28 4 to14 inch ESC B nn Line length nn can be from 10 to 42 characters ESC C n Print Format n can be 0 or 1 single sided 0 or interpoint 1 ESC H n Page Layout n can be 0 or 1 Normal 0 or Z fold printing 1 ESC I n Page 1 up down n can be 0 or 1 up 0 or down 1 ESC J n 6 8 dot braille n can be 0 or 1 6 0 or 8 1 dot braille ESC M nn Line Spacing nn can be from 0 to 16 step ESC N n Line Single Doubl...

Page 26: ...1 35 13 0 027 065 050 054 1B 41 32 36 08 0 027 065 049 054 1B 41 31 36 13 5 027 065 050 055 1B 41 32 37 08 5 027 065 049 055 1B 41 31 37 14 0 027 065 050 056 1B 41 32 38 09 0 027 065 049 056 1B 41 31 38 Default is 12 inches Setting the line length ESC B nn Line length nn can be from 10 to 42 characters Line Length Char ASCII HEX Char ASCII HEX 10 027 066 049 048 1B 42 31 30 20 027 066 050 048 1B 4...

Page 27: ...42 33 36 Default is 42 characters pr line Print Format ESC C n Print Format n can be 0 or 1 single sided 0 or interpoint 1 Print Format Print Format ASCII HEX Single sided 027 067 048 1B 43 30 Double sided 027 067 049 1B 43 31 Default is Double sided Page layout ESC H n Page Layout n can be 0 or 1 Normal 0 or Z fold printing 1 Page Layout Page Layout ASCII HEX Normal 027 072 048 1B 48 30 Z fold 02...

Page 28: ...53 1B 4D 30 35 14 4 4450 027 077 049 052 1B 4D 31 34 6 1 9050 027 077 048 054 1B 4D 30 36 15 4 7625 027 077 049 053 1B 4D 31 35 7 2 2225 027 077 048 055 1B 4D 30 37 16 5 0800 027 077 049 054 1B 4D 31 36 8 2 5400 027 077 048 056 1B 4D 30 38 Default is 16 steps 16 steps are the standard line spacing 5 08 mm or 0 2 8 is the setting for graphic 2 54 mm or 0 1 Note that if the setting is less than 7 an...

Page 29: ...5 027 082 053 1B 52 35 1 027 082 049 1B 52 31 6 027 082 054 1B 52 36 2 027 082 050 1B 52 32 7 027 082 055 1B 52 37 3 027 082 051 1B 52 33 8 027 082 056 1B 52 38 4 027 082 052 1B 52 34 9 027 082 057 1B 52 39 Maximum 1 to 9 This setting will decrease the number of lines on each page with 1 to 9 depending on the selected number If e g the maximum number of lines would be 29 and the setting Max 4 is s...

Page 30: ... 049 055 1B 54 31 37 7 4 4450 027 084 048 055 1B 54 30 37 18 11 4300 027 084 049 056 1B 54 31 38 8 5 0800 027 084 048 056 1B 54 30 38 19 12 0650 027 084 049 057 1B 54 31 39 9 5 7150 027 084 048 057 1B 54 30 39 20 12 7000 027 084 050 048 1B 54 32 30 10 6 3500 027 084 049 048 1B 54 31 30 The Page Margin function will adjust the page margin in steps from 0 to 20 The standard setting is 8 8 normal The...

Page 31: ... this the paper position will be the same as it had when this volume of text was started Then page no 1 on the next volume will start out correctly There will always be at least one blank sheet of paper between the volumes of text when finishing each volume with a Software Form Feed Software Form Feed ESC 1 Soft Form Feed Software Form Feed ASCII HEX Software Form Feed 027 049 1B 31 2 8 Lines per ...

Page 32: ... which magnet rack s is causing the trouble If there is missing dot s use the X pattern to detect which magnet rack s is missing the dot s If there are too many dots use the full cell lines or the test pattern on test print no 4 and the extra dot s will appear in the space between the lines However the best test is ordinary text if a proofreader is available To locate the faulty magnet rack s use ...

Page 33: ... against the long pivot arms 3 and the long pivot arm does not move properly If there are too many dots on the paper the reason might be one of the following 1 The sponge list 5 is not pressing enough against the long pivot arm 3 2 The gap 11 is too small 3 The magnet poles have become sticky and this causes the pivot arms 3 to stick to the magnet 4 The long pivot arm 3 does not move properly Cont...

Page 34: ...BRAILLO M NORWAY AS B 200 30 3 2 Principal Design of Printing Procedure ...

Page 35: ...BRAILLO M NORWAY AS B 200 31 Observe that the same printing mechanism magnet long pivot arm short pivot arm and printing pin makes all the dots in a column downwards the page ...

Page 36: ...Z fold Page 1 5 9 13 17 21 25 29 33 37 41 45 49 53 Dot 1 2 3 7 Magnet Rack C 57 61 65 69 73 77 81 85 89 93 97 101 Dot 4 5 6 8 Magnet Rack D Page 4 8 12 16 20 24 28 32 36 40 44 48 52 56 Dot 1 2 3 7 Magnet Rack D 60 64 68 72 76 80 84 88 92 96 100 104 Dot 4 5 6 8 Magnet Rack C 1 4 5 8 9 12 3 3 3 3 3 1 2 3 6 7 10 11 Page 2 6 10 14 18 22 26 30 34 38 42 46 50 Dot 1 2 3 7 Magnet Rack A 54 58 62 66 70 74 ...

Page 37: ...s pointing in the opposite directionofeach other see figure below and lock the shaft e g with a locking wrench The magnet rack assembly is fastened on the Printer The gap 11 should be about 0 2 mm and should be adjusted using screw 16 Make sure that the gap 11 is the same at both ends of the magnet rack The distance 10 should be about 1 0 mm but if the braille dots are too weak you mayadjust the m...

Page 38: ...agnet are placed exactly in the connectors in the printed circuit board The assembly is done in reverse order Mount the guide list 8 with the pivot arms on the magnet rack Observe the following The support list 1 must be adjusted and fastened so the gap between the support list 1 and the long pivot arms 3 is 0 8 mm when the long pivot arm is against the magnet Use a feeler gauge to check this adju...

Page 39: ...BRAILLO M NORWAY AS B 200 35 3 6 Magnet Rack Figures ...

Page 40: ...BRAILLO M NORWAY AS B 200 36 Magnet Rack Figures ...

Page 41: ...BRAILLO M NORWAY AS B 200 37 3 7 Magnet Rack Printing Process ...

Page 42: ...t on the printer s frame without disconnecting the cables 3 Remove the input paper guide 2 4 Remove the output paper guide 14 5 Loosen the belt tightening wheel 3 and remove the belt 4 6 Loosen the four big bolts 5 on top of the frame 6 Take this bolts all the way out 7 Now the top part of the frame 6 with the upper shaft must be lifted upwards and placed aside Note that the top part of the frame ...

Page 43: ...BRAILLO M NORWAY AS B 200 39 ...

Page 44: ...BRAILLO M NORWAY AS B 200 40 3 9 Return Springs Adjustment The adjustment has to be done when the shafts are in this position See the marks at the end of the shafts on the figure below ...

Page 45: ...gn the eccentrics Put the belt back on tighten it with the belt tightening wheel 2 and check that the marks at the end of the shafts 1 are pointing towards each other See figure below If the marks are not aligned like on the figure it might be necessary to move the belt a notch or two on one of the wheels ...

Page 46: ...e figure below Lock the shafts in this position with a wrench e g at the end of the shaft 2 Loosen the locking nuts 1 adjust the push rods 3 by turning them Adjust it against the 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 the push rods 3 with the ...

Page 47: ...ment Turn the belt so the marks at the end of the shafts D is pointing towards each other as shown on the figure below Loosen the screws A turn the sensor wheel C until the sensor B is situated in the middle ofthe open part of the sensor wheel See figure below ...

Page 48: ...one like this Loosen the tractor feed shaft by unscrewing the two left hand screws B on the sensor wheel Note Do not loosen the screws for the stepping motor shaft Now the tractor feed shaft can be turned forward or backward until the paper is in the wanted position Note The marks to indicate the positioning of the paper on the paper guide will not be accurate after this adjustment ...

Page 49: ...BRAILLO M NORWAY AS B 200 45 3 14 Inductive Sensors Replacing and Adjusting When replacing the sensors the gap between the sensor wheel and the sensors can be maximum 0 6 mm See figure below ...

Page 50: ...t sensor can be replaced like this Take the paper guide with the sensor out of the Printer To open the box press the two fastening clips G simultaneously and pull the box a little bit open at this end Do the same at the other end and pull the box open Replace the sensor ...

Page 51: ...very year the magnet racks are taken apart for more thoroughly cleaning Disassembly the magnet racks as described on page 34 and the different parts should be wiped off with a cloth moisturized with alcohol The most important areas The surface on the piece of iron in the long pivot arm the magnet poles the surface on the long pivot arm which lay against the support list and the support list itself...

Page 52: ...003 Frame Lower 1 B04004 Frame Upper 1 B04005 Shaft Upper Lower 2 B04006 Main Bearing with Housing 4 B04007 Bearing Eccentric Outer 4 B04009 Beam Lower 1 B04010 Beam Upper 1 B04011 Rack Printing Pins 2 B04013 Piston 4 B04014 Columns 2 B04015 Printing Pin 168 B04016 Pivot Arm short 168 B04020 Pressure Spring 2 B04021 Return Spring 2 B04022 Stroke Ball Bearing Paper Shoe 4 B04022 Stroke Ball Bearing...

Page 53: ... B04095 Paper Shoe Upper 1 B04109 Guide List Long Pivot Arm 4 B04121 Fuse Motor resetable 1 B04127 Pillar 4 B04131 Stroke Ball Bearing Rod Paper Shoe 4 B04132 Bearing Inner Eccentric 4 B04134 Pressure Spring Adiprene 16 B05052 Contactor Motor 1 B05055 Hour Counter 1 B05181 Pivot Arm Long Magnet Rack 168 P02181 CPU Power Supply 1 X02029 Fuse Relays 1 25AF 1 X02548 Fuse Magnet Rack 3 15AT 4 X02549 F...

Page 54: ...BRAILLO M NORWAY AS B 200 50 4 2 Overview Spareparts Side ...

Page 55: ...BRAILLO M NORWAY AS B 200 51 4 3 Overview Spareparts Front ...

Page 56: ...BRAILLO M NORWAY AS B 200 52 5 TECHNICAL SPECIFICATIONS 5 1 Cable Connections Fuses ...

Page 57: ... switch Motor fuse C Fuse magnet rack C N Connector ext Alarm D Fuse magnet rack D O Motherboard E Main switch P Connector Braillo Cut G Connector operating panel Q Connector operating panel H Outlet Fan R Parallel port I Outlet Motor S Serial port J Hour counter T Fuse stepping motor K Main fuse U Fuse relays ...

Page 58: ... C LED 12 V M EPROM socket D LED 12 V N Connector Paper Out sensor E LED 12 V Serial port O Connector Paper Feed sensors F LED 12 V Serial port P Connector Main sensor G Serial port Q Connector Stepping Motor H LED 5 V Parallel port R Connector Relays I Parallel port S Power supply input J Connector Operator Panel ...

Page 59: ... a control signal When this is set to logic low from the Printer the computer must stop sending text immediately Pin no 2 Tx is used to transmit XON XOFF control signals to the computer The text sent to the Printer is received through pin no 3 Rx All other outputs from the Printer are set to logic high Pin configuration 25 pin female D sub contact parallel port Pin no 1 Strobe Input Active low Pin...

Page 60: ... 25 pin female 1 FG FG 1 2 TD RD 3 3 RD TD 2 4 RTS CTS DSR 5 6 5 6 CTS DSR RTS 4 7 SG SG 7 8 DCD DTR 20 20 DTR DCD 8 Wiring diagram for the serial cable with 9 pins adaptor Standard RS 232 C cable 9 25 pin 9 pin female 25 pin female 1 DCD DTR 20 2 RD TD 2 3 TD RD 3 4 DTR DCD 8 5 SG SG 7 6 8 CTS DSR RTS 4 7 RTS CTS DSR 5 6 ...

Page 61: ... per hour Electrical Voltage Single phase 220V 10 50Hz Optional 220V 10 60Hz Current Approx 5 A max Fuse Printer 10 A Power Approx 1000 W max Communication with the computer Parallel on Centronics 25 pin D sub female or Serial on RS 232 C 25 pin D sub male Both are electrical isolated with opto couplers to prevent noise and ground loops Parameters for the serial port Baud rate 150 19200 Parity No ...

Page 62: ...AS Office Storgt 31 Tønsberg Mail POB 647 3101 Tønsberg Norway Phone 47 33 31 66 22 Telefax 47 33 31 66 77 Telex 70333 brail n e mail braillo braillo no Production Braillo Norway AS Office Skolegt 1 Stjørdal Mail POB 93 7501 Stjørdal Norway Phone 47 74 82 49 29 Telefax 47 74 82 75 44 e mail service braillo no ...

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