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Summary of Contents for CAB PX Q Series
- Page 1 Service Manual Print Module PX Q MADE IN GERMANY...
- Page 2 Edition: 07/2020 - Part No. 9003595 Copyright This documentation as well as translation hereof are property of cab Produkttechnik GmbH & Co. KG. The replication, conversion, duplication or divulgement of the whole manual or parts of it for other intentions than its original intended purpose demand the previous written authorization by cab.
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Page 3: Table Of Contents
Table of Contents Introduction ............................4 Instructions ............................... 4 General Safety Instructions ........................4 Protective Devices ........................... 5 Handling Electricity ..........................5 Procedure in Case of Accidents ......................5 Environment ............................. 5 Preparation ............................. 6 Tools ................................. 6 Removing and Installing the Rear Cover ....................6 Maintenance ............................ -
Page 4: Introduction
Introduction Instructions Important information and instructions in this documentation are designated as follows: Danger! Draws attention to an exceptionally great, imminent danger to your health or life due to hazardous voltages. Danger! Draws attention to a danger with high risk which, if not avoided, may result in death or serious injury. Warning! Draws attention to a danger with medium risk which, if not avoided, may result in death or serious injury. -
Page 5: Protective Devices
Introduction Protective Devices Warning! There is a risk of injury if protective devices are missing or defective. Replace all protective devices (covers, safety notices, grounding cables etc) after maintenance work has been completed. Replace parts that have become defective or unusable. Wear protective goggles for: •... -
Page 6: Preparation
Do not use any worn of damaged tools. Only use tools and testing devices that are suitable for the task at hand. cab special tools: • Test collar for transfer ribbon winder (cab Part-No. 5540932) • Distance caliber 0,1 mm (cab Part-No. 5961064) Standard tools: •... -
Page 7: Maintenance
Maintenance Cleaning by the Operator The following cleaning work is described in the “Mounting Instructions“: • Cleaning the device. • Cleaning the printhead. • Cleaning the print roller . Cleaning the Label Sensor Figure 2 Cleaning the label sensor Danger! Risk of death via electric shock! ... -
Page 8: Replacing Assembly Units
Replacing Assembly Units Replacing the Printhead The printhead of the label printer can be replaced without the need for fine adjustment. The printhead must be replaced if worn or when switching to a printhead with higher or lower resolution. 1 Data connector 2 Power connector 3 Threaded holes 4 Catching holes... - Page 9 Replacing Assembly Units Figure 4 Replacing the printhead Dismounting the Printhead 1. Remove the media from the printer. 2. Lock the printhead. 3. Loosen two screws (6). 4. Open the printhead locking and if necessary remove the printhead from the pins (9). 5.
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Page 10: Replacing The Rollers And The Dispense Edge
Replacing Assembly Units Replacing the Rollers and the Dispense Edge 7b 9 Figure 5 Replacing the rollers and the dispense edge 1. Unlock the levers (1,3) to lift the printhead and the pinch roller. Open the locking system (8) and swing it down. 2. -
Page 11: Replacing The Slipping Clutches
Replacing Assembly Units Replacing the Slipping Clutches The rewinder for the transfer ribbon is coupled to the main drive using a slipping clutch (2L, 2R). The supply hub of the transfer ribbon is braked with a slipping clutch (1L, 1R) during printing. Replace a slipping clutch when it can no longer be set ... - Page 12 Replacing Assembly Units Replacing the Slipping Clutch at the Ribbon Rewinder Figure 7 Slipping clutch at the ribbon rewinder 1. PX QL: Lift the electronics unit page 11. 2. Remove the snap ring (5). 3. Pull the clutch (4) from the winder axle (2). 4.
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Page 13: Replacing The Label Sensor
Replacing Assembly Units Replacing the Label Sensor Note! Soiling of the label sensor can also cause malfunctions. Before replacing the label sensor, check whether it is soiled and clean it if necessary 3.2 on page 7. Danger! Risk of death via electric shock! ... -
Page 14: Replacing The Pcb Cpu
Replacing Assembly Units Replacing the PCB CPU Danger! Risk of death via electric shock! Before opening the rear cover, disconnect the device from the mains supply and wait at lease one minute until the power supply unit has discharged. 1 4 screws 2 PCB CPU Connectors:... -
Page 15: Replacing The Power Supply Unit
Replacing Assembly Units Replacing the Power Supply Unit Danger! Risk of death via electric shock! Before opening the rear cover, disconnect the device from the mains supply and wait at lease one minute until the power supply unit has discharged. Figure 11 Replacing the power supply unit 1. -
Page 16: Adjustments
Adjustments Measuring and Adjusting the Winding Torques The rewinder for the transfer ribbon is coupled with a slipping clutch to the main drive. The unwinder of the transfer ribbon is braked with slipping clutches during printing. The correct setting of the torques of these slipping clutches is necessary for: •... - Page 17 Adjustments The set values for the winding torque and the resulting pulling force at the test collar are: Winder Measurement Direction of rotation Winding torque M Pulling force F Ribbon rewinder against winding direction 12,9 - 13,5 Ncm 4,3 - 4,5 N in winding direction 2,1 - 3,0 Ncm 0,7 - 1,0 N...
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Page 18: Adjusting The Winding Torques
Adjustments 5.1.2 Adjusting the Winding Torques The winding torque of a winder can be changed at the knurled ring of the respective slipping clutch. The numbers on the knurled ring stand for the value of the winding torque: • 1: Lowest winding torque •... -
Page 19: Adjusting The Printing Mechanism
Adjustments Adjusting the Printing Mechanism Major adjustment of the printing mechanism beyond format-based settings is only required if the printhead assembly has been removed or parts in this area have been replaced. Excluded from this is the replacement of the printhead, after which readjustment is generally not required. -
Page 20: Aligning The Printhead To The Print Roller
Adjustments 5.2.2 Aligning the Printhead to the Print Roller In order to achieve the best possible print image the following printhead settings are necessary: • Setting the parallelism of horizontal lines and the edge of the label. • Aligning the heating line to the top of the print roller. This is the position with the highest print image density. PX Q without automatic ribbon saver PX Q with automatic ribbon saver Figure 16... -
Page 21: Adjusting The Printhead Pressure
Adjustments 5.2.3 Adjusting the Printhead Pressure The printhead pressure can be changed with the screws (1a) and (1b) at the inside and outside of the printhead. Increasing the printhead pressure leads to an improvement of the print image density on the corresponding side and to a shifting of the ribbon feed path to the opposite side. -
Page 22: Adjusting The Transfer Ribbon Feed Path
Final Test Recheck the setting with the test function Test grid ( Configuration Manual) or a similar print pattern. When using standard cab media, the test printout must show lines with sharp contours and black areas without any parts missing. -
Page 23: Adjusting The Belt Tension At The Main Drive Motor
Adjustments Adjusting the Belt Tension at the Main Drive Motor Danger! Risk of death via electric shock! Before opening the rear cover, disconnect the device from the mains supply and wait at lease one minute until the power supply unit has discharged. Figure 20 Adjusting the belt tension 1. -
Page 24: Adjusting The Head Switches
Adjustments Adjusting the Head Switches The head switches prevent printing when the printhead ore the backfeed system are open. Adjust the head switches if the error message Head open appears in the display even though the printhead and the backfeed system are locked. Danger! Risk of death via electric shock! ... -
Page 25: Adjusting The Automatic Ribbon Saver
Adjustments Adjusting the Automatic Ribbon Saver The ribbon saver reduces the consumption of transfer ribbon by lifting the printhead while feeding blank label areas. The printhead will be lifted by eccentrics and the ribbon unwinder will be blocked by a magnetic clutch. Print phase Saver phase Eccentrics... -
Page 26: Adjusting The Magnetic Clutch
Adjustments 5.5.2 Adjusting the Magnetic Clutch A misaligned magnetic clutch can cause a very high and not adjustable torque at the ribbon supply hub. The distance between chassis of the magnetic clutch (2) and the armature disk (3) must be 0.1 mm. Danger! Risk of death via electric shock! ... -
Page 27: Troubleshooting And Error Treatment
Troubleshooting and Error Treatment Failure of Device Functions Functional error Possible remedy Medium is not transported Check electrical connections between PCB CPU and motor Check drive mechanism Replace the PCB CPU Replace the motor No print image with medium Check plug connections at the printhead transport Examine printhead cable for damage and replace if necessary Check the automatic ribbon saver... -
Page 28: Block Diagram
Block Diagram Figure 24 Block diagram PX Q... -
Page 29: Layout Diagram Pcb Cpu
Layout Diagram PCB CPU Measuring points at CON9: #FD1 TOP10 R117 C116 R150 C296 R151 C269 R152 C262 C266 R116 C179 C157 R140 R142 C175 C155 C163 C290 C295 R158 +24V (+24V) C301 C169 C153 Measuring points on the PCB: 25 4 9 8 7 6 5 4 3 2 C222... -
Page 30: Index
Index Automatic ribbon saver adjustment ..25 Winding torque Adjustment ........18 Measurement ......16 Belt Tension ........23 Brake ribbon unwinder......12 Dispense Edge .........10 Error treatment .........27 Hardware faults ........27 Head Switch ........24 Important information......4 Label sensor Cleaning ........7 Replacement .......13 Magnetic clutch.........26 Motor ..........23 PCB CPU..........29 PCB CPU replacement .....14...
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