Servicing the Print Module
Contents
1. 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module Construction of the print module 2 Dismantling the print module 3 Ec a AA ene tt et 5 How to completely dismantle the draw LUN aaa ANGARA NA ANAN ANAN NANA 5 Dismantling the feed roller 6 Dismantling the pressure roller 7 a A eee PAPA PP 8 Head raising mechanism 8 Dismantling the print unit 10 Print head contact adjustment 11 Balas AAAH 12 General information about the print head 12 Setting the head voltage 12 Setting further head parameters 12 Dismantling the print heaad 13 Print head adjustment Q 14 Correcting the position in print direction 14 Correcting displacement 15 Head aperture adjustment 15 E GA HOA 19 Brake roller aa 19 Dismantling the brake unit 20 GOMMACL AN Ose PAA 21 Gap photoelectric switch 22 Material end photoelectric switch 23 Ribbon transport unit anakan 24 Ribbon unwinder aa 24 Ribbon take up 25 RIDDON ge AA 27 Adjusting the ribbon tautness 28 06 04 Rev 3 00 02 SERVICE MANUAL TTK Construction of the2. the switch contact 3 The switch contact must rest on the innermost cam 4 of the eccentric axis O Information about the connections on the boards can be found in the chapter Service Boards 06 04 Rev 3 00 02 SERVICE MANUAL TTK Draw unit The TTK TEXXTILE holds the material taut between the tension unit and the brake unit to allow it to process very flexible textile material Essentially the tension unit comprises of two rollers which press down on each other the lower of which the transport roller is driven An eccentric axle provides the necessary force on the pressure roller The following describes how to dismantle the roller and the entire draw unit Tools Screwdriver Socket wrenches sizes 6 and 8 Grip ring pliers Phillips screwdriver How to completely dismantle the draw unit 1 Disassemble the front and rear hoods and the front left and bottom right housings O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Remove the feed motor 1 and toothed belt by unscrewing the three lock nuts on the motor flange 3 Remove the clamping ring 2 Pull off the ratchet wheel 3 e g by levering it off with a strong screwdriver 4 Unscrew the support leg of the draw unit 4 5 Remove the four fastening screws 5 of the draw unit O Continued on the next page Servicing the Print Module
3. 06 04 Rev 3 00 02 SERVICE MANUAL TTK 6 Carefully pull the draw unit 1 out of the cast plate Dismantling the feed roller 1 Proceed as if removing the entire draw unit until Step 3 removing the ratchet wheel 2 Remove the locking screw 2 3 Pull out the feed roller with the bearings 3 O Continued on the next page Servicing the Print Module 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Dismantling the pressure roller 1 Dismantling the draw unit O See the section Completely dismantling the draw unit for further details 2 Remove the clamp grip rings at both ends of the eccentric axle 1 3 Thread the eccentric axle out of its bearing 2 4 Clap up the support balancer 3 of the pressure roller Remove the lock screw 4 5 Thread the pressure roller with the bearings out of the balancer 5 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Print unit Essentially the print unit 1 comprises of the print head 2 contact roller 3 ribbon guide 4 head raising mechanism The following describes how to dismantle the entire print unit Head raising mechanism If the ribbon economy function is activated the ribbon transport unit is halted over longer print free ranges and at the same time the print head is raised from the material This task is carried by the head raising mechanism 5 which is driven by a sepa
4. CUT button Display INFO 7 Press the CUT button several times until Display OTHR 8 Press the ON OFF button Display DOWN 9 Press the CUT button several times until Display HADJ 10 Press the ON OFF button Display YES 11 Press the ENTER button Display H 12 Press the ENTER button again Display H printer emits a tone 13 Switch off the printer using the mains switch 14 Unscrew the screw 1 on the head lever 15 Unscrew the grub screw 2 on the oscillator disc 16 Turn the sliding block 3 into the print position The contact arm 4 must now be in the groove of the sliding block 5 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK 17 Lay 0 1 mm thick material 6 between the sliding block and the contact arm iin 18 Press the contact arm 1 against the sliding block and retighten the screw 19 Switch on the printer The printer should still be in the HADJ mode Hx 20 Ensure that the notch of the oscillator disc 1 is at its highest point 12 o clock Turn the notch slowly in a clockwise direction viewpoint standing in front of the opened rear hood until O zero is shown on the display This should occur when the edge of the notch passes the photoelectric switch 2 Carefully retighten the grub screw of the oscillator disc Do not overtighten becaus
5. ch may be present 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Ribbon transport unit The following parts ensure that the ribbon is transported evenly and without folds Ribbon unwinder 1 Ribbon guide 2 Ribbon roller 3 Ribbon take up 4 The ribbon unwinder 1 and ribbon take up 4 are almost identical the only difference concerns a few parts on the motor side of the print module The unwinder is fitted with an oscillator disc for controlling the unwinding process and a brake disc The take up does not have an oscillator disc and the brake disc is replaced by a pulley for the drive belt Tools Socket wrenches sizes 7 and 8 Allan key 2 mm Ribbon unwinder Disassembly assembly 1 Remove the rear hood O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Unscrew the nut 3 Counterhold the threaded rod against the red hexagon head 4 Turn out the threaded rod on the red hexagon head while holding on to the cap 4 O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK 4 Remove the cap spacing ring spring shims 1 oscillator disc 2 brake disc 3 brake spring 4 and friction wheel 5 6 Unscrew the two grub screws of the buffer disc 6 Remove the buffer disc 6 Press pull the unwinding mandrel towards the print head si
6. de out of the mounting Ii Turn the cap when putting it on until it can be easily moved along the ribbon mandrel axle ii Pay attention to the shims on the ribbon mandrel axle print head side Ii During assembly ensure that you screw the threaded rod into the cap until the contact spring is compressed by a few millimetres Ribbon take up Disassembly assembly 1 Remove the rear hood O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Detach the ribbon motor by removing the three fastening nuts on the motor flange 3 Unscrew the nut 7 Counterhold the threaded rod against the red hexagon head 4 Turn out the threaded rod on the red hexagon head while holding on to the cap 8 O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK 5 Remove the cap 1 spacing ring 2 spring 3 brake disc 4 and pulley 5 6 Unscrew the two grub screws of the buffer disc 6 Remove the buffer disc 7 Press pull the unwinding mandrel towards the print head side out of the mounting II Turn the cap when putting it on until it can be easily moved along the ribbon mandrel axle ii Pay attention to the shims on the ribbon mandrel axle print head side ii During assembly ensure that you screw the threaded rod into the cap until the contact spring is compressed by a few millimetre
7. e guide axles 3 6 Remove the screw 4 on the retaining plate The gap photoelectric switch can now be removed 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Material end photoelectric switch The material end photoelectric switch is integrated in the rear material guide 1 The following description and the adjacent illustrations refer to a dismantled brake unit ko the parts concerned are more visible here The material guide can however albeit more difficultly be removed without dismantling the brake unit e Tools Allan key size 2 5 5 Grip ring pliers ee va 3 Disassembly assembly 1 Remove the front and rear hoods O Instructions for removing the housing Pe 5 parts can be found in the section Housing in the chapter Service General Information 2 Dismantle the brake unit O See the section Dismantling the brake unit for instructions 3 Unscrew the thumb screw of the front material guide 2 4 Unscrew the grub screw 3 on the bottom of the rear material guide 5 Push the grip ring 4 to the middle of the axle 6 Push the axle to one side against the resistance of the clamping ring 5 7 Pull the clamping ring and material guide off the side which is now clear 6 3 Unplug the connector cable of the gap photoelectric switch from the stepper board and thread it through the aperture in the cast plate Remove any cable binders whi
8. e otherwise the plastic thread will be damaged 21 Press the ENTER button The printer has now been reset The head aperture should now be set correctly 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Brake unit BN The following major components of the brake a i unit 1 are described in the following b Brake roller 2 Contact axle 3 Material end photoelectric switch 4 Gap photoelectric switch 5 Brake roller ar Tools Phillips screwdriver medium size Disassembly Assembly 1 Unscrew the locking screw 6 Turn the plate 7 aside 2 Pull out the brake roller 2 3 Insert the new brake roller 4 Fix the plate so that the brake roller cannot move in an axial direction 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Dismantling the brake unit 1 Proceed as described in the section Dismantling the brake roller 2 Remove the grip ring 1 and the red lever 2 by unhitching the tension spring at the top of the lever 3 Remove the two hexagonal screws 3 4 Carefully pull out the brake unit 4 Thread through the connector cable of the photoelectric switches 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK of Contact axle The contact pressure rollers 2 of the contact axle 1 provide the necessary friction between the brake roller and the material Remove the brake unit for servic
9. e work and to access the contact axle Tool Clamp ring pliers Disassembly assembly 1 Remove the front and rear hoods O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Dismantle the brake unit O See the section Dismantling the brake unit for instructions 3 Remove the grip ring 3 4 Thread the contact axle out of the side guidings 4 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Gap photoelectric switch The part shown here ill 1 is called a gap photoelectric switch The gap photoelectric switch is fitted with a transparent sensor as standard but a reflecting sensor can also be equipped as an option The gap photoelectric switch is removed from the brake unit after this has been dismantled Tools Allan key 3mm Side cutting pliers Disassembly assembly 1 Remove the front and rear hoods O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Dismantle the brake unit O See the section Dismantling the brake unit for instructions 3 Unplug the connector cable of the gap photoelectric switch from the stepper board and thread it through the aperture in the cast plate Remove any cable binders which may be present 4 Remove the retaining screws 2 on the two guide axles 5 Pull out th
10. ent 11 Print head correcting position in print CITE CHONG senese a 14 Print head dismantling 13 Print image displacement 15 Print module construction XX 2 PANLUNAN AN ANA Walh0 da 8 Print unit dismantling 10 Ribbon Automatic economy cccseeeeeeeeseeeenees 8 tautness adjusting the 28 RIDDON POE ana ANNA Ala ALAN 26 Ribbon take up a 24 Ribbon transport unit 23 Ribbon unwinder 1 aa 23 Ribbon zero line 1 1 aa 27 TOONDE eenn na GD a 5 Zero Ne MDDO MM aasa ae 27
11. ent When changing the thermo head it may be necessary to make the following adjustments II If necessary programme the head resistance by adapting the parameter HRES accordingly Make a note of the head resistance given on the print head before assembly II Check the print quality and the direction of the printout e Insufficient print density for measures see the section Position in print direction e Crooked printout for measures see the section Correcting displacement Correcting the position in print direction 1 Set the print head supply voltage to HV99 To do this press the CUT FEED button in the on line mode Increase the setting value to 99 by pressing the FEED button Exit the parameter menu by pressing the CUT FEED button 2 In the parameter menu select INFO DOT1 and confirm by pressing the ENTER button The printer prints a dot test pattern 3 Check the print density If the printout is not of a solid black colour the print head is not making contact on the highest point of the contact roller In this case screw in both of the grub screws 1 on the front of the head mounting by approx one turn Repeat steps 5 and 6 until the printout is a solid black colour II The print density is decreased if the grub screws have been tightened too much Loosen both screws to correct this 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Correcting displacement Check whe
12. is potential equalisation between the operator s hand the print head and the device ii Please note that damage cannot be detected immediately but that in some cases it only occurs after a lengthy runtime connected to the power supply Switch off the device and pull out the mains N Imp The following jobs may only be carried out when the device is not plug Tool Allan key 2 5 mm Disassembly assembly 1 Remove the front hood O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 The print head can be accessed more easily if you remove the print roller 2 first O To do this unscrew the thumb screw and pull the print roller 3 out of its mounting O Additional information about removing the print roller can be found in the section Replacing the print roller in the chapter Commissioning and Operation 3 Detach both connector cables from the print head 4 Unscrew the two print head fastening screws 4 5 Remove the print head from the print head mounting 5 in a downward motion if you have already removed the print roller or towards the rear of the printer II During assembly press the print head firmly on both sides onto the setting screws 6 in the head mounting and at the same time tighten the fastening screws 4 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Print head adjustm
13. n empty ribbon sleeve 3 onto the mandrel 2 Wrap some windings of ribbon onto the sleeve Fix the beginning of the ribbon on the sleeve 3 Twist the ribbon end and tie a sling in to it 4 Hang the spring balance 2 to the sling and pull on it until the mandrel slips through and turns Readout the pulling force 5 Increase decrease the braking torque by turning the red hexagonal nut 6 Repeat steps 4 and 5 until the demanded value is adjusted e Tractive force roll up mandrel 4 1 8 bis 2 1 N e Tractive force unwind mandrel 5 1 6 bis 1 8N 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module Index B Brake roller dismantling 18 Brake APAPAP ABHAN 18 Brake unit dismantling 19 C Construction of the print module 2 COMLACT KG AA 20 D Disassembly print module 3 BEA 5 F Feed MOON etnia raa 5 FeedTOlE eree 6 H Head aperture adjustment 15 Head resistance setting 12 Head voltage setting 12 Head raising mechanism 8 M Material guide 22 P Photoelectric switch Gap 21 Photoelectric switch material end 22 Pressure roller draw UNit cc eeeeeeeeeeeeees 7 PIR MCAG makaka NATA NAA NANA 12 Print head contact adjustm
14. ools Spring balance 0 to 50 N part no 93665 Fork spanner SW 7 Coupling part no 96140 Adjustment 1 Remove the rear hood O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Set the adjustment knob 1 to the minimum contact pressure 3 3 Turn the sliding block on the head motor until the contact arm of the head raising mechanism is recessed into the groove of the sliding block print head is in the depressed position 4 Screw the coupling onto the bolts 4 5 Unscrew the fastening nut 5 6 Attach the spring balance to the coupling and pull on it until the spring balance shows 9 N 7 At the same time tighten the fastening nuts against the axis 6 and lock them 06 04 Rev 3 00 02 Print head A Print head Settings SERVICE MANUAL Servicing the Print Module TTK II The print head thermo head is very sensitive in particular to static I gt 1 Display 2 3 electricity Static charges may not be allowed to make contact with the thermo head when handling the component This applies in particular when it has been disassembled General information about the print head A flat head type thermo head is used The thermo head is connected to the CPU mainboard by two connector cables There are electronic and mechanical setting options Electronic settings Supply voltage
15. print module The print module ill dispenser version comprises the cast plate 1 with the components mounted on top Ribbon roll up mandrel 2 Ribbon unwind mandrel 3 Ribbon transport roller 4 Draw unit 5 Print unit 6 Brake unit 7 Head raising mechanism 8 Other components II The print module can be completely removed from the printer Servicing the Print Module 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Dismantling the print module It is relatively simple to remove the cast plate together with the components mounted on it Proceed as described below Tools Allan keys 2 mm 2 5 mm and 3 mm Disassembly assembly 1 Remove the front and rear hoods 2 Remove the front left and bottom right housing O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 3 Pull the ribbon disc 1 off the ribbon roll up mandrel Unscrew the Allan key screw 2 first 4 Detach all the cables which are connected to the print module 5 Remove the fastening screw 3 of the draw unit support 6 Remove the five fastening screws 4 of the cast plate O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK 7 Carefully pull off the print module towards the motor side ii When assembling the print module note the position of the bouncer spring 2 and
16. rate motor Tools Allan keys 2 5 and 5 mm Screwdriver Disassembly assembly 1 Remove the front and rear hoods and the front left housing O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Remove the board base in order to access the head raising mechanism O See the section Board base chapter Service General Information for further information 3 Unhitch the spring 6 from the lever 7 O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL TTK 4 Unscrew the grub screw 1 5 Detach the head raising mechanism 2 and 3 O Continued on the next page Servicing the Print Module 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Dismantling the print unit The rest of the print unit can be removed once the head raising mechanism has been dismantled Tool Allan key 5 mm Disassembly assembly 1 Dismantle the head raising mechanism as described in the previous section 2 Remove the two fastening screws 1 one on each side of the partition 3 Detach the print unit 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Print head contact adjustment The initial tension in the tension spring 1 and the position of the adjustment knob 2 determine the extent of the print head contact if it is not in the ribbon economy position T
17. s 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Ribbon roller The ribbon roller is driven together with the ribbon rewinder by the ribbon motor 1 The motor must be removed first Tools Phillips screwdriver Screwdriver Disassembly assembly 1 Remove the front hood and front left housing O Instructions for removing the housing parts can be found in the section Housing in the chapter Service General Information 2 Remove the ribbon motor by unscrewing the three fastening nuts 2 3 Remove the clamping ring 3 4 Pull off the ratchet wheel 4 5 Press pull the ribbon roller 5 towards the print head side out of the mounting 6 Pull the ribbon dancer rod 6 off the ribbon roller 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Adjusting the ribbon tautness The braking torque of the ribbon unwind mandrel and the ribbon roll up mandrel can be set from the front using the red plastic hexagonal nuts 1 on the ribbon mandrels The braking torque is increased by turning them in a clockwise direction O Also read chapter Setting the ribbon tautness subject section Setup of the user manual The tractive force on the ribbon is proportional to the roll unwinding roll up torque One can measure this with a spring balance Tool Fish balance 5 N 2 ID Nr 93665 01 Adjusting Adjust the braking torque as follows 1 Place a
18. ther the edges of the printout are parallel to the borders of the labels This is easier to check if the borders are as narrow as possible Proceed as follows 1 Set the parameter PRTP YPOS to 1 or 2 test This shifts the printout relative to the edge of the label 2 Start INFO STA2 3 Correct any displacement 1 using the grub screws in the head mounting Example ill tightening the screw 3 unscrewing the screw 2 Head aperture adjustment The head aperture is adjusted on the head raising mechanism 4 The sliding block and oscillator disc of the head motor 5 are not easily visible dismantled parts are therefore used in the illustrations to demonstrate the settings Nominal value When switched on and with ribbon inserted the aperture between the thermo head and feed axle should measure between 0 75 mm and 1 00 mm If this is not the case set the head aperture as follows Setting 1 Remove any material 2 Insert some ribbon if you have not done so already 3 Printer reset Press the FEED CUT NEXT ON OFF buttons Display INIT flashing While INIT is flashing press the ON OFF button Display CODE O Continued on the next page 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK 4 Press the following buttons one after the other FEED CUT ON OFF ON OFF FEED CUT 5 If ON is displayed press the ON OFF button Display OFF 6 Press the FEED
19. to the print head HV99 Resistance value of the implemented print head HRES Mechanical settings Position of the print head Adjustment of the print head contact pressure Setting of the print head contact pressure operator setting Power supply temperature of the print head Adjustment of the head aperture Setting the head voltage A falsely set maximum supply voltage can destroy the thermal bar In on line mode press the buttons FEED CUT NEXT HVxx xx value between 00 and 99 Set the value xx to 99 by pressing the feed button Use the potentiometer R25 on the stepper board to set the head voltage Measure the head voltage at test point CN29 For details about the value of the head voltage as well as for the position of the setting elements on the board see subject section Service Boards Setting further head parameters For details about adjusting the print head temperature while printing see chapter Info Printouts and Parameters parameter HVxx For details about setting the temperature reduction with increasing print head temperature see chapter Info Printouts and Parameters parameter HEAT For details about setting the head resistance when changing the thermo head see chapter Info Printouts and Parameters parameter HRES 06 04 Rev 3 00 02 SERVICE MANUAL Servicing the Print Module TTK Dismantling the print head ii When removing or replacing the print head 1 ensure there
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