Service manual - carl
Contents
1. of error when measuring label the difference adjust label photocell distributor 19 between label and backing paper is too change sensitivity small when measuring no label found remeasure ap the selected label length is too high check label length 51 while printing no marking gap found check label while printing ribbon is empty change ribbon 22 defective ribbon photocell check ribbon photocell in menu service check ribbon sensitivity loss of data at serial interface RS 232 check Baudrate 23 check cables on printer and PC parity error check parity check Baudrate 24 check cables on printer and PC stopbit error check stopbits check Baudrate 25 check cables on printer and PC received line number invalid with check data sent 26 RS 232 Centronics connection PC printer invalid length of received mask statement check data sent ee connection PC printer invalid mask statement check data sent connection PC printer missing ETB check data sent en connection PC printer invalid length of received code statement check data sent oe connection PC printer invalid length of received command check data sent 31 statement connection PC printer 40 Service manual number possible causes how to solve the problem of error illegal statement check data sent 9e connection PC printer entered received check d2. Option Jumper Jumper Jumper Jumper Jumper JP17 JP11 JP14 JP15 JP16 only 70 20 052 and 70 20 053 Default b a 5 0 b Hotstart a b 5 0 b RISC a a 5 0 b Initialisation CPU a a 5 0 a Eprom 1 4 Component parts of power supply Service manual N 1 5 Connector assignment rear panel Lj Lj external input external output external input II external output Il Memory Card slot A Memory Card slot B 10 11 12 12 connection for PC keyboard connection for rewinding unit Attention only suitable for PR 45 not for PR 52 serial interface RS 232 connection for serial interface RS 422 RS 485 or second RS 232 Centronics interface power supply with ON OFF switch Service manual 1 6 Changing of fuses 1 6 1 Primary fuse The primary fuse is in the power line filter block and accessible from outside After plugging out the cover can be removed There behind you will find the fuse switch which has to be pulled out to change the fuse optimo rear panel power line filter block F3 fine wire fuse T 3 15A 1 6 2 Secondary fuse Attention The machine should only be ope
3. exgedNv jodexgz pueg OW duis 40jeuuoo Service manual 1 1 3 Wiring diagram plug 1 25 pin female connector power SUBD photocell photocell photocell photocell cutter cpl clutch switch unit JP9 25 pin transm reflexion dispensing transf rib ON OFF socket cablel mm cablel cablel mm cablel mm cablel mm cablel mm cablel mm insul _ mm insul l mm insul l mm insul l mm insul l mm insul l insul __mm 1 VCC green 2 yellow IN Pull UP pink ol A wo o 5 ENS IT 4 o c c cutter photocell Service manual 1 1 4 Wiring diagram plug 2 25 pin connector power unit SUB D photocell photocell motor paper feed Ribbon saving JP9 25 pin printhead closed printhead open EC motion motor AMP connector down up ECM 268 E2 3A Crouzet 89 908 301 50 pin cable length 380 mm insul tube 340 mm cable length 330 mm cable length 430 mm cable length 430 mm insul tube 290 mm insul tube 390 mm insul tube 390 mm white blue red green black white connect w shield white cable f print module green blue yellow brown Service manual 1 2 Component parts of CPU Revision 0 s Wy IER u EID i amp ETC
4. 16 Motor Signals osi bn Ct e 16 1 8 Service MONON oi ed 18 1 8 1 Valuation of label parameters eene ener nennen 18 1 8 2 Error message label 19 1 83 Error Simna NO SSO ee teni etm ene 20 18 4 MODILOT either lute det ree cus 20 2s ODCONS MEI r aa aa a a a E H 21 2 A External Inputs OUTPUTS ANSE RAA ASRS 21 2 1 1 Component parts external l O s sass 21 2 1 2 Installation externalI Q s i asa aa taz enit ante te re enn code edge nnda secs 22 2 1 3 PIN assignment of DSUB connections 23 21 4 GHECK PONTS TTE 24 2 29 AERE 25 2 2 1 Component parts sse ener enne 25 2 2 2 Installation Gard mere RR TE ben RR e Leite 26 2 34 tole helo ter cetus indere Le ee M le 27 2 3 1 Component parts RS 485i aiiiar 27 23 2 Installation RIS 485 pee Eremitae 27 2 4 Extension Of HAM eene ep ede deeds eee dee EE n deed ee d d ie edens 28 2 5 Extension of RISG va iei aa eed He 29 2 5 1 Component parts RISG cniris tniad Ga iia ai 29 2 6 Installation RIS Ginis esed d E cte eed tied nie Rte e oui EL Ceu e e Lc Ee 30 Table of co
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6. OUTPUT 3 7 2 E 4 OUTPUT 4 8 3 2 internal external plug DSUB optical coupler The in and outputs are galvanic separated and have to be fed by external power supplies In function menu Service functions the in outputs can be checked IN 12345678 OUT 12345678 In case an input is activated this will be shown in the display If an output is to be activated this can be done by pressing the key of the desired output e g activation of output 3 press key 3 The output is deactivated by pressing the key again 23 Service manual 2 1 4 Check points check point description value 4 X IN 1 4 ext input impulse E EM BEZ PIN2 INPUT 1 Jl PIN4 INPUT 2 Jl PING INPUT 3 Jl PIN8 INPUT 4 ail We 4 x IN 5 8 U6 PIN10 INPUT 5 Jl U7 PIN8 INPUT 6 EE PIN10 INPUT 7 KE EM PIN12 INPUT 8 s 4 x OUT 1 4 U3 PIN2 OUTPUT 1 PIN3 OUTPUT 2 a PING OUTPUT 3 PIN7 OUTPUT 4 4 x OUT 5 8 U5 PIN7 OUTPUT 5 SES PIN2 OUTPUT 6 SES PIN3 OUTPUT 7 PING OUTPUT 8 subse 24 Service manual 2 2 PC Card 2 2 1 Component parts PC Card Ia ea OO OG GIS ST3 O BC 78 515 eR Og R RO 2
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8. 8 2 Error message label error Possible reasons of the error message Label error are the following Too thick res opaque backing paper In this case the value of A will be too high This means that the printer cannot distinguish between label and backing paper Very thin label material In this case the value of B is too low so that the printer cannot distinguish between backing paper and label label 2099 Pre printed label with strong differences in contrast Pre printed labels are a particular problem Here the fluctuations of voltage on the label while measuring are very high In this case the value of B will be very small In case the difference between B and A is too small the printer is not able to measure the label 19 Service manual 1 8 3 Error elimination In case the photocell had already been adjusted so that the difference between A and B has received the highest possible value as described in chapter 1 7 3 Photocells the sensitivity of the label photocell can be adjusted 1 8 4 Monitor After activating the key again in menu Parameter of label photocell the photocell monitor will be activated On the display of the printer the following appears The digit represents the measured voltage in volts The monitor serves to check the label photocell to its function As well it is possible to move the label manually under the photocell to get an ide
9. always have to be installed in pairs either in the two inner on the two outer plugging positions 28 Service manual 25 ExtensionofRISC 2 5 1 Component parts RISC CEOE OE OEE EOE EI eee e eee SS 58 e eee a Rm iy 595 ss ore ss zal Cit eee i d m 22 29 Service manual 2 6 Installation RISC N NNN 658 2505527 Switch off the printer Remove components U15 and U13 The font Eprom U31 may as well be removed as the RISC processor disposes of an own font Eprom Loosen mounting screws at the board and screw in spacers Put RISC board into socket ST8 and fix it with mounting screws Switch on the printer Besides the printer type the display additionally shows the identification for the RISC processor 30 Service manual 3 Mechanics 3 1 Exchange of printhead Attention For exchange of printhead the ESD regulations have to be observed Switch off the printer and plug it out Open up print module Remove printhead cable A B with plugs Remove the screws C D by means of an allen key 5 5 mm Take off the printhead E Installation Installation of the new printhead an
10. 2 C4 IPs JP7 222 8o 8 CJ 555 i Co c S 2 a C15 m 6181 5 0 6819 c ms U ae 2 a a 2 2 50 8 s PNwe c11 C12 C8 C7 S m 574 ST ST1 25 Service manual 2 2 2 Installation PC Card Switch off the printer gt out of rear panel for PC Card board Open cut Card board gt see sketch and insert connecting cable Install PC gt 26 Service manual 2 3 RS 485 2 3 1 Component parts RS 485 215 UG sen 4 zdt 0 Pm SS SS RES S 2 3 2 Installation RS 485 ii 9 o 15 215 EM RAS position of connecting plug on rear panel see chapter 1 5 Connector assignment rear panel 27 Connect circuit board with components on CPU see sketch above Screw connecting cable to rear panel pos 10 and connect it to circuit board gt gt Service manual 2 4 Extension of RAM Installation gt Switch off the printer gt Insert SIMM modules into socket gt The modules
11. LAN valentin ETIKETTENDRUCKSYSTEME English Service manual Thermal Transfer Printer Optimo type 79 66 075 November 2000 Carl Valentin GmbH NeckarstraRe 78 80 amp 94 78056 VS Schwenningen support valentin carl de http www valentin carl de Table of contents Table of contents 1 1 1 Miring diagkalris c iaces RRS EGS SRG NIENTE 1 1 1 1 Wiring diagram URIS OMG ah EG AAS 1 1 1 2 Wiring diagram aaa ea aR ARS Aaa a a 2 1 1 3 Wiring diagram plug 1 ccce tenerae NSS Raa 3 1 1 4 Wiring diagram ae GORR a aa N ORA aa te ee S 4 1 2 Component parts of CPU Revision 5 1 3 Component parts of CPU Revision A 6 1 34 Me es 7 1 4 Component parts of power supply esses eene nnne 8 1 5 Connector assignment rear 9 1 6 G hanging OF USES roro ene A E ee Eid 10 ONA Pma USE ee 10 156 2 Secondary TUSC teas rra dd tra Aes a 10 UTE e Sene 11 1 7 1 Voltage supply power board RSG SAGAS SOS SEER 11 1 7 2 Voltage supply PU adi i n dd ceed caved iacet ala E 11 1 79 Photocells 5 55 ut coe EE e eee ete bas ee ue eate Re eue dep s 12 17 4
12. a of the voltage wave form and to be able to judge whether the label can be measured The difference of backing paper and label should be higher than 1 5 V 20 Service manual 2 Options 2 1 External inputs outputs 2 1 1 Component parts external I O s ST2 ST4 5 RNW2 RNW3 p O O O O D4 D3 D2 D1 Re D7 D6 D5 U2 U4 RNW 1 PNW2 o CP RNWA 2 5 PNW1 U O US U5 U6 ST3 ST5 21 Service manual 2 1 2 Installation external I O s gt Connect circuit board with components to the CPU gt Mount the connecting cable at the rear panel and connect it to the circuit board position of connectors on rear panel see chapter 1 5 Connector assignment rear panel A dispense inputs B dispense outputs 22 Service manual 2 1 3 PIN assignment of DSUB connections Inputs 9 pin DSUB plug Pin description of signal ls INPUT 1 5 E E E INPUT 3 7 51 1 Q 12 24V Pin 6 b Outputs 9 pin DSUB receptacle LN NN Pin description of signal OUTPUT 1 5 2 8 2 6 7
13. ace the line a lower position Y check rotation font line completely partly projects the lower label place the line a higher position 2 id check rotation font line completely partly projects the left label move the line to the right 9 n check rotation font line completely partly projects the right label move the line to the left XY 3 check rotation font one more characters of the text is are not change text 5 included in the selected font change font one more characters of the text is are not change text 6 included in the selected font change font impossible to match the text into the selected check field size 7 field internal error Please contact your distributor 9 the selected type of text is not available check type of text the selected code is not available check type of code x the selected position is not available check position the selected font is not available check font 12 the font EPROM does not support the check language 13 HAUG Please contact your distributor see error no 5 14 i error in font EPROM Please contact your distributor error in font EPROM Please contact your distributor 16 error in font EPROM Please contact your distributor error in font EPROM Please contact your distributor 18 39 Service manual number possible causes how to solve the problem
14. d the other components in opposite order Switch on the print unit In function menu Service Functions menu item Heater Resistance enter the resistance value of the new printhead You will find this value on the name plate of the printhead R XXXX Q Test the position of the printhead by making a test print In case the test print does not come up to your satisfaction the printhead has to be adjusted Attention Do not touch the contacts of the printhead 31 Service manual 3 2 Adjustment of printhead For the adjustment of parallelity and pressure the print module has to be taken off the case Remove the screws ant the chassis base It is recommended to connect the print module by means of an extension cable in case of availability 3 2 1 Parallelity gt Loosen screws A B approx turn with an allen key 5 5 mm gt Adjust parallelity by the screws C D If you turn in clockwise direction the printhead will move backwards if you turn against clockwise direction it will move forward gt Depending on the print quality of the test print adjust more until the print quality is correct gt Fasten the 4 screws A B again gt Start print order with approx 5 10 labels and check the correct wrinkle free ribbon If the ribbon shows wrinkles check the parallelity once again 32 Service manual 3 2 2 Pressure balance right left In case of a non equal strong pressure after adju
15. e removed and opened if necessary e g if a label is sticked to the photocell gt Clean photocell with spirit gt Installation in opposite order Note To exchange the photocell the connecting cables in the plug have to be unsolded colour assignment for new photocell see chapter 1 1 3 Wiring diagram plug 1 36 Service manual 3 6 To oil and lubricate lubricant oil inside outside of all ball bearings on both sides o SZ view from the side clutch no oil or lubricant 37 Service manual 4 Possible sources of error 4 1 Display In case of error the following display will appear Example 1 Error categories unknown error error interface label error error field data system error error memory data error error parameter ribbon error error print parameter 2 Number of error The number of error is indicated see table of errors chapter 4 2 Table of errors 3 Text Specification of the error occured 4 Line number MC Slot Indication where res in which line the error occured 38 Service manual 4 2 Table of errors number of error possible causes how to solve the problem line completely partly projects the upper label rim pl
16. ganas s 888888 f EY PF lb E sz Le Service manual 1 3 Component parts of CPU Revision A Hi ATIA i VES s tar es 104 EI 1 Me E i E DRE m dicte POPE STIS S I RS RS PUR PER sl B my x Ee 21 naa 02 RIS TOIT e l MTT ie 29 009 2 yao tn n un L Paice by li if ves T 2 quem us l m a a EE To 211 mm Wo EN Mu ig BI mm 4 ur Wt ood P Lig kl EMI yy T I ld 77 78 j ut E ul un wur a E Service manual 1 3 1 Bridge plan Printhead Version Article Machine position Specials No JP15 KCE 53 12 Dot 82 20 035 V55 Optimized timing but KCE 107 12 Dot lower pressure KCE 128 12 Dot KCE 150 12 Dot
17. heck counting mode IDS error 43
18. igit is faulty in recalculate check digit 33 check digit control cack coda data Y selected SC code invalid with EAN UPC check SC code entered number of characters invalid with check number of characters 35 EAN UPC Code lt 12 gt 13 type of check digit not available with selected check digit control 2 cee check type of code m not readable printer parameter check serial EEPROM service Sd printer parameter cannot be stored check serial EEPROM service T selected zooming factor invalid check zooming factor entered sign of offset invalid check offset value di entered offset value invalid check offset value printhead temperature too high contrast V is defective temperature sensor of printhead change printhead service error cutter check label guiding BPA check cutter entered characters are not conform to the check code data 44 characters allowed by the application identifiers application identifier not available with EAN check code data 45 128 continuous mode selected printer received do not select continuous mode or transmit command statement via interface where dummy line with 46 number of lines lt 2 Label length is Y coordinates label length missing see interface manual connection CPU Memory Card interface check connection CPU Memory Card 47 has been interrupted interface Memory Card interface defective check Memory Card interface 41 Service manual number possible causes h
19. name 65 42 Service manual possible causes how to solve the problem RTC function has been selected though check selected function add RTC ram 66 RTC is installed in the printer exchange RTC ram RTC defective e no print memory found check memory standard on CPU board max storage space of Memory Card is delete files on Memory Card that are no 68 reached longer needed internal error Please contact your distributor 69 wrong format entered for variable line check format string 70 3 wrong format entered for date time check format string 72 73 74 75 different software standard of graphics Please contact your distributor 76 processor main processor different software standard of graphics Please contact your distributor 77 processor main processor or hardware error connected barcode scanner signals device check connection scanner printer 8 a check scanner possibly defective bad print quality increase contrast 79 printhead completely soiled or defective clean printhead or exchange if necessary printing speed too high decrease printing speed scanned character sequence is not identical exchange printhead with character sequence to be printed 80 due to possibly missing dots a false barcode was printed definition of counter variables invalid entry of check characters of counter in text statement 81 inadmissible characters as counter c
20. nding on the printer s operating hours and its environment e g dust etc With a test print it can be easily found out whether the printhead is soiled or defective 8 printhead is o k b printhead is defective soiled While cleaning the printhead the printer has to be switched off gt Open up print module gt The part to be cleaned is situated at the front edge of the printhead Cleaning only with dry cleaning solvent As expedient a close woven cotton cloth is recommended In case this procedure is not sufficient the printhead can be cleaned with a special cleaning foil to be obtained from us under ref Nr 97 14 008 Warning printhead is very sensitive therefore scratching res strong rubbing is absolutely to be avoided Rough or hard subjects may not be used for cleaning Cleaning of pressure roll In certain intervals the pressure roll has to be cleaned with spirit dust soil etc 34 Service manual 3 4 Exchange of lower pressure roll Remove print module from the case Remove safety washer A Loosen both hexsocket head screws B and remove driving gear C Take off pressure roll D Install new pressure roll in opposite order 35 Service manual 3 5 To clean remove label photocell gt Screw off side panel A of the case gt Screw off cover sheet B by loosening screw C gt off safety washer D and remove shaft E to the right gt Photocell F can now b
21. ned by competent staff Plug out before removing the covers After removing the covers the CPU plate is visible Underneath you will find the power supply board with 2 secondary fuses F1 fine wire fuse T 1 6 A fuse for 5 V and 12 V supply F2 fine wire fuse T 10 0 A fuse for motor voltage 33 V and burning voltage 24 V and cutter res rewinding unit D 1 rectifying unit P 1 potentiometer F 1 fine wire fuse T 1 6 A F 2 fine wire fuse T 10 0 A 10 Service manual 1 7 Check points 1 7 1 Voltage supply power board check point JP7 PIN 1 JP7 PIN2 JP7 PIN 3 JP7 PIN 4 JP7 PIN 5 JP7 PIN 6 10 JP10 PIN 25 description SUPPLY 1 value 5V check point ST5 PIN 2 33 34 ST5 PIN 3 4 ST5 PIN 26 ST5 PIN 25 1 7 2 Voltage supply CPU description value OV 12V 19 8 11 Service manual 1 7 3 Photocells Label photocell transmission JP9 PIN 1 VCC DL 1 2V PIN 2 INPUT DL see below PIN 3 GND DL OV Depending on the transparency of the label res backing paper the voltage at the input of the AD converter is changing Sketch 1 shows a typical voltage wave form at INPUT DL measurable at ST5 PIN 5 CPU label backing paper sketch 1 In case the adjusted value of the sending current of the photocell is insufficient e g when using extremely thick or thin backing paper it can be adjusted by changing P1 power unit plate Rotati
22. ntents B MOCHANICS ce 31 3 4 Exchange Of Printh ad ies tite e etn ee D Y RS 31 3 2 Adjustment Of printheadi itl ees sate tees eb A oboe te FR AKARA ian 32 3 21 Parallelity 5 6 dt aic nitate tiam a Ee ne 32 3 2 2 Pressure balance SSS ORS 33 M RAGES GEESE GA ESS SA 33 3 3 Cleaning of printhead and pressure roll essent 34 3 4 Exchange of lower pressure Rata e 35 3 5 To clean remove label 36 SOLE ON ANC IU ORGAO ind tec ee eet eee e nO e D anii 37 4 Possible sources tnde creer kac eter dan trae enam kae ERR ru aa Enc RE aera unda 38 CE MUSICIAN 38 4 2 Table Of scia gem tette ga inerte eut deve ease 39 II Service manual iagrams d lagram power uni semod d iring iring 1 Electronics 1 1 W 1 1 1 W 7219 ed isdeq O 00 22 04 ou ye a uoissiuusuen eur eins 010022 ou ye uonuany TWINS DININ
23. oint CPU check point description power supply ST5 PIN16 JP10 PIN16 HC1 PIN17 PIN17 CLK1 PIN18 PIN18 DIR1 PIN19 PIN19 ENABLE 1 value from printing speed 130 mm sec on otherwise HC1 signal remains on The frequency changes according to printing speed defines direction of step motor release of step motor control 16 Service manual Motor for closing of printhead check point CPU check point description value power supply ST5 PIN20 JP10 20 HC2 5V PIN21 PIN21 CLK2 5 t The frequency changes according to printing speed PIN22 PIN22 DIR2 5V defines direction of step motor PIN23 PIN23 ENABLE2 5V release of step motor control 17 Service manual 1 8 Service monitor 1 8 1 Valuation of label parameters In function menu Service functions you will find the service monitor by which the photocells can be checked res adjusted When measuring the labels the values will be displayed in the first line thereby the following measured voltages are shown A absolute minimum measured on backing paper B smallest maximum measured on label C upper lower switching level Voltage V 5 C 0 0 70 distance mm label The sketch illustrates the voltage wave form of the label photocell while measuring the label The difference between A and B should be at least 1 5 V 18 Service manual 1
24. on to the right adjustment for thick backing paper Rotation to the left adjustment for thin backing paper Af The INPUT DL level can be displayed in menu item Service functions label parameter under LS xx measurement of photocell standard 12 Service manual Label photocell reflexion JP9 PIN 4 VCC RF 5V PIN 5 INPUT RF see sketch PIN 6 PULL UP RF 2M PIN 7 GND RF OV The voltage wave form at INPUT RF is similar to the one described under A and is measurable at ST5 PIN 6 on the CPU U 5V 35V t label marking It has to be considered that the marking for the reflexion photocell must be in a distance of 32 5 mm to the interior rim so that the photocell recognizes the marking marking label Standard The INPUT RF level can be displayed in menu item Service functions label parameter under LS x x The marking should have a size of at least 7 mm x 3 mm or bigger 13 Service manual Dispensing photocell JP9 PIN 8 VCC SP 5V PIN 9 INPUT SP see sketch PIN 10 PULL UP SP 1 2V PIN 11 GND SP OV The typical voltage wave form at INPUT SP measurable at ST5 PIN 9 is shown in sketch 3 label no label As standard a level of 2 5 V is adjusted If a label is under the dispensing photocell the level at INPUT SP must be higher than 2 5 V If the label is removed the voltage must lower under 2 5 V In some cases it is necessary to change the level of
25. ow to solve the problem of error 48 Memory Card not or not correctly entered enter Memory Card wrong type of Memory Card entered check card type has to be 16 Bit 49 8 16 Bit charge of battery accumulators can cause change battery attention loss of data 50 loss of data on the Memory Card E battery accumulators empty change battery attention loss of data Write Protect switch on Memory Card is on deactive write protection 52 position Memory Card not formatted formate Memory Card 53 no files on Memory Card 54 file does not exist on Memory Card search through the contents of the Memory 55 Card and select the desired file name check directory and device 56 invalid characters in the file name check characters max storage space of Memory Card is use a new Memory Card 57 reached delete files on Memory Card that are no longer needed max number of main directory entries is at least one main directory entry has to be 58 reached deleted then create subdirectories selected file includes no graphic dates check file name 59 m selected file includes no label dates check file name a invalid directory name check directory name selected directory already exists check directory name 62 m you tried to delete the actual directory change directory E directory to be deleted is not empty first delete all files in the directory selected subdirectory does not exist check directory
26. sting the parallelity for the complete printhead width it is possible to arrange the balance by means of an adjusting unit E as follows gt Turn the adjusting screw F in clockwise direction for a stronger pressure at the right side gt Turn the adjusting screw F against clockwise direction for a weaker pressure the right side 3 2 3 Pressure Please avoid the increase of printhead pressure as this results in damages of printhead res reduces its life The pressure is adjusted directly at works according to the specification of printhead Position 0 E i Position 1 3 Position 2 P Position 3 KA By means of the adjusting screws A B it is possible to adjust the pressure of printhead in 4 positions In case no screwdriver is available the adjusting screws can also be moved with a coin Important for recognition of the position is the plate fixed at the adjusting screw The following pressure positions are possible Position 0 weak pressure 3 6 kg according to the printhead specification from works Position 1 slightly stronger pressure 4 kg approx 4 N higher than position 0 Position 2 even stronger pressure 4 5 kg approx 9 N higher than position 0 Position 3 strongest pressure 5 kg approx 14 N higher than position 0 33 Service manual 3 3 Cleaning of printhead and pressure roll Principally it is advisable and necessary to clean the printhead in regular intervals depe
27. the dispensing photocell This can be done in menu item Printer initialisation LS switching level The INPUT SP level can be displayed in the menu item Service functions label parameter under CP x x Ribbon check JP9 PIN 12 VCC TCR 5V PIN 13 IN TCR High res Low PIN 14 PULL UP TCR 1 2 PIN 15 GND TCR OV The photocell Ribbon check checks whether the ribbon is moving By that alterate high and low signals are measurable at IN TCR which should have a ratio as much as possible of 1 1 The IN TCR level can be displayed in menu item Service functions label parameter under and is measurable at ST5 PIN 8 on the CPU 14 Service manual Photocell printhead open 9 PIN 26 PIN 27 PIN 28 PIN 29 Photocell printhead closed 9 PIN 30 PIN 31 PIN 32 PIN 33 VCC ABKL IN ABKL PULL AB GND ABKL VCC ANKL IN ANKL PULL AN GND ANKL 5V High res Low measurable at ST5 PIN 10 CPU 1 2V OV 5V High res Low measurable at ST5 PIN 9 CPU 1 2V PIN 30 The activity of the photocells E and F is shown in menu item Service functions label parameter under DW res UP 15 Service manual 1 7 4 Clock signals check point U1 PIN 11 PIN 12 U30 PIN 15 PIN 16 U1 PIN 24 description CLK CPU CLK CPU RESET RESET NMI value 25 res 32 MHz OV 5V OV 1 7 5 Motor signals Motor for paper feed check p
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