PRS Adjustment
Contents
1. 3 Close the Carriage Cover and switch OFF the Printer PRS Adsm O A 4 Move the Carriage Assembly to the left hand side of the Printer to the position shown i OTA T A Lea y a go wad Ta lt ae 5 Using the belt move the Carriage Assembly backwards and forwards over the Pivot Assembly but staying on the left hand side of the printer carefully listening for a scraping sound A RSA 6 Ifyou hear a scraping sound that means that the Pivot Assembly is too high and needs to be lowered slightly Lower the Pivot Assembly slightly by turning the T 8 screw 1 8th of a turn clockwise and then check for a scraping sound again as shown previously in step 5 Cross Section Lowering the Pivot Assembly PRS Adham O A 7 Ifyou don t hear a scraping sound that means that the Pivot Assembly is too low and needs to be raised slightly Raise the Pivot Assembly slightly by turning the T 8 screw1 8th of a turn anti clockwise and then check for a scraping sound again as shown previously in step 5 Cross Section Raising the Pivot Assembly CP ia 8 Repeat steps 5 to 7 until you reach a point where you will hear the scraping sound and by turning the screw just 1 8th of a turn clockwise the scraping sound will disappear 9 Move the Carriage Assembly to the right hand side of the Printer to the position shown 10 Using the belt move the Carriage Assembly backwards and forwards ov2. Check that the Pen to Rib space is within specifications and if necessary adjust it as follows 1 Open the Top Cover and the Printhead Access Door and block the Door Sensor with a piece of paper 2 Double click on the Caltrava topLine CSM icon to start the application 3 Select the Printer Model and type in the Printer Serial Number Click OK i Enter PartNumber and SerialNumber Ea Serial Number Part Number 7791 60009 7791 60010 C7791 60014 C7791 60116 C7791 C7791Z x 4 Inthe Control Application click on the START button make sure first that you are in Test Station SE50 EJ CSM of x Line SE Station SE50 Process Sequence TG SE PRS Calibration MESSAGE HCOM IC Chech Test Mode Mech Idle timeout disable Disable Color Sensor IC PRS Adjustment Top Enable Color Sensor Click here SIN SG24518071 P N C 796A Project CALATRAVA 8 2 02 12 50 PM j msaduimey O A 5 A message appears that asks you to put the printer in MFG mode To do this while the printer is switched OFF press both the resume and power buttons together until the Tool icon appears on the front panel Tool Icon i Line SE Station SE50 MESSAGE Turn on the unit in Mfg mode OK SIN 3G24518071 P N c 82 02 11251 PM y 8 2 02 1251 PM y 7 After a few seconds the Carriage moves to the left and then to the right several times and then finally comes to a stop above th
3. bars are aligned click Accept 15 The PRS Pen measures the Pen to Rib Space along the Print Platen again Once it has taken all the measurements the PRS Pen moves to the Service Station and the following message is displayed on the computer screen CTsCalPRS Run E GAUGE_UNLOAD msaduimey O A 16 Open the Carriage Cover and remove the PRS Pen from the Magenta Stall a 17 Close the Carriage Cover and then click OK 18 If the calibration was performed correctly and the Pen to Rib Space is within specification then the following message is displayed on the computer screen EJ CSM Bl x Line SE Station SE50 S N 5G24518071 P N C7796A Project CALATRAVA 8 2 02 1 10 PM 19 If the calibration was performed incorrectly or the Pen to Rib Space is out of specification then the following message is displayed on the computer screen Click on Retry if you want to retry the Calibration EJ CSM lel x Line SE Station SE50 l Retry S N 5G24518071 P N C 96A Project CALATRAVA 6 2 02 1 10 PM p CD ia 20 If during the PRS Calibration an error message appears refer to the following table in order to troubleshoot it TG_SE PRS Calibration HCOM NONE ClMation failed to Repeat the test after communicate with the checking that ALL the cables Printer are correctly connected Check User Unit booted in O mode Printer initialized in a Initialize the Printer in
4. the Calibration Stand should be sent to the Metrology Lab to verify that the datum surfaces are correct Make sure that ALL datums on both the PRS Pen and the Calibration Stand are clean and free from debris Also check that there is nothing else preventing the PRS Pen from sitting correctly on the Pen Datums in the Calibration Stand Check the Calibration using the Calibration Master Stand If the values NOT within the specifications recalibrate the PRS Tool using the Calibration Master Stand Remove the cover plate of the PRS Pen and make sure that the wires are not preventing the probe tip to move Remove the cover plate of the PRS remove the LVDT and inspect the probe tip and core Use Locktite preferably 242 which is removable to secure the probe tip onto the core This will help to ensure that the probe tip does not back itself out over a period of time PRS adhsmem O A Manual PRS Adjustment The purpose of the Manual PRS Adjustment is to adjust the distance between the Carriage Assembly and the Pivot Assembly This adjustment is necessary in order to prevent problems like Printhead crashes Perform the Manual PRS Adjustment as follows 5 Carriage Height Tool CP tia 1 Turn On the Printer and open the Printhead Access Door 2 Open the Carriage Cover and install the Carriage Height Tool into the Magenta Stall Make sure ALL the other printheads are already removed from the Carriage Assembly
5. 069 mm Low P32 70 0 070 mm Allowed Error 10 0 010 mm If the values are different click Yes Do you want to change them If correct click No 13 If you select No meaning the values are correct a message will appear on the computer screen requesting you to insert the PRS Tool into the Line Calibration Stand CPRSTool Calibrate AN Place the tool in the calibration stand in position NOMINAL 1 566 mm 14 Install the PRS Pen inside the Line Calibration Stand Release the plunger and lower the clamp into position PRS Adham O A 16 A message will appear on the computer screen requesting you to place the Line Calibration Stand in the HIGH position Place the Line Calibration Stand in the HIGH position and click on OK CPRSTool Calibrate xj AN Paco te taolin te carat stana in positon Hiat 3 080 mm 17 A message will appear on the computer screen requesting you to place the Line Calibration Stand in the LOW position Place the Line Calibration Stand in the LOW position and click on OK CPRSTool Calibrate 18 Ifthe Calibration fails with an error the following message will appear and you must repeat the calibration again CPRSTool Calibrate X N Calibration ERROR Expected 0 070 0 008 mm and got 0 080 mm 19 If the Calibration finished correctly the following message will appear Click OK AN Calibration OKI O invent Adjusting the Pen to Rib Space
6. 1 492699 Target 1 492699 Current 1 429 Too LOW Current 1 569 Too HIGH Accept 14 Adjust the Pen to Rib Space as follows a Using a very long torx screwdriver T 8 either tighten or loosen the Pivot Assembly screw Tightening or loosening the screw will adjust the Pen to Rib Space until the green bar on the left block is aligned with the green bar on the right block If the current position is LOW then tighten the screw slightly if the current position is HIGH then loosen the screw slightly Position 73870 Current 1 492 OKI Tighten or Loosen the screw using a Torx screwdriver et until the two green bars are aligned LOW Tighten Screw HIGH Loosen Screw Pass the Screwdriver through this hole in the Center Cover b Once the two green bars are aligned click Accept and the PRS Pen will move to the right hand side of the printer a ia c Using a very long torx screwdriver T 8 either tighten or loosen the Pivot Assembly screw Tightening or loosening the screw will adjust the Pen to Rib Space until the green bar on the left block is aligned with the green bar on the right block If the current position is LOW then tighten the screw slightly if the current position is HIGH then loosen the screw slightly Tighten or Loosen the screw using a Torx screwdriver LOW Tighten Screw HIGH Loosen Screw Pass the Screwdriver through this hole in the Center Cover d Once the two green
7. 45674 Cancel CD tia 7 Click on Tools then click on PRS Gauge and then click on Calibration Config Help Show Height Calibration FLOW WINDOW TEST WINDOW Message Communication ON Pen Rib Space Top File Execute Tools PRS Gauge gt 8 A message appears on the computer screen with the default values that are used for the calibration Check these values against the values on the green label on the calibration Stand CPRS Tool GetCalStand 4 The current values for the Calibration Stand are Nominal P1 High P2 Low P3 Allowed Error 9 If the current values displayed on the computer screen are different from the values on the green label then you will need to change the values by selecting Yes on the computer screen If the values are correct then select No and proceed to step 13 CPRS Tool GetCalStand Q The current values for the Calibration Stand are Nominal P1 1574 1 574 mm High P2 3069 3 069 mm Low P3 70 0 070 mm f Allowed Error 10 0 010 mm correct If the values are click No different click Yes Do you want to change them msaduimey O A 10 Ifyou selected Yes to change the values a series of messages will appear requesting you to introduce the values for each of the 3 positions Follow the messages on the computer screen to introduce the values that appear on the green label Calibration Stand Ed Position 1 NOMINA
8. L in microns PRS Calibration Stand Measurements S N 024 NOTE Be sure that the values mach with the indicated on the computer screen Stand 7 371026 Calibrated April 20 2001 HP BCD Slide T 376328 Calibration Stand Position 2 HIGH in microns PRS Calibration Stand Measurements S N 024 NOTE Be sure that the values mach with the indicated on the computer screen Stand 7 371026 Calibrated April 20 2001 HP BCD Slide T 376328 Calibration Stand Position 3 LOW in microns PRS Calibration Stand Measurements S N 024 NOTE Be sure that the values mach with the indicated on the computer screen ro Cancel Stand T 371025 Calibrated April 20 2001 HP BCD Slide T 376328 11 After you have entered the values for the Calibration stand you will be requested to enter the allowed calibration error which should be 8 microns Calibration Stand E4 Allowed Calibration ERROR in microns la Cancel CP tia 12 Once all the values have been entered a message will appear on the computer screen with the values that you have just entered Check these values against the values on the green label on the Calibration Stand to make sure they are correct and then select No or select Yes and re enter the values CPRSTool GetCalStand Q The current values for the Calibration Stand are Nominal F1 1574 1 574 mm High P2 3069 3
9. SU refer to the accompanying documentation CD tia Automatic PRS Adjustment Instructions The PRS Adjustment is split into 2 different processes E Calibrating the PRS Pen using the Line Calibration Stand Checking and if necessary adjusting the Pen to Rib space to within specitications Calibrating the PRS Pen Calibrate the PRS Pen using the Line Calibration Stand as follows 1 Double click on the controller icon to start the Control Application Version 1 2 Click on Config and select Change station or click directly on the New Plotter box control File Execute Tools Smii Help Change station Identify plotter Select Test Group gt FLOW WINDOW TEST WINDOW Changes the current line station 3 A Enter the password to change station message will appear You must enter the following text and then press OK CHANGEstation ENTER Enter the password to change station CHANGEstatior Cancel msaduimey O A 4 A box will appear prompting you to select the Line and Station For the Line select SE and for the Station select SE50 Click OK LINE SE STATION 5 Click on Config and select Identify plotter control File Execute Tools Eug Help FLOW WINDOW TEST WINDOW Introduce a new model serial number 6 Select the Printer Model and type in the Printer Serial Number Click OK Introduce the Model and Serial Number HE MODEL C7796A SERIAL NUMBER 56123
10. again as shown previously in step 14
11. e Service Station and the following message appears CTsCalPRS Aun a GAUGE_LOAD 8 Open the Access Panel in the Center Cover and pass the PRS Tool through it a a invent is stent 9 Open the Carriage Cover and install the PRS Pen into the Magenta Stall Make sure that there is enough PRS Pen cable to allow the Carriage to move along the Scan Axis of the Printer lt i B a b Fo M 7 A P s at 11 The PRS Pen measures the Pen to Rib Space along the Print Platen Once it has taken all the measurements the PRS Pen stops on the left hand side of the Print Platen and the PRS measurement is displayed on the computer screen 12 Check the two blocks one gray and one red on the computer screen If the green bar on the left block is aligned with the green bar on the right block then the measurement is within specification Click Accept and the PRS Pen moves to the right hand side of the Print Platen Again check the two blocks on the computer screen If the two green bars are aligned then the measurement is within specification Click Accept to continue TEST WINDOW Position 73870 Target 1 492699 Current 1 492 OK Accept PRS Adjustment J invent 13 If the green bar on the left block is below or above the green bar on the right block then the measurement is out of specification and the Pen to Rib Space needs to be adjusted Position 73870 Position 73870 Target
12. er the Pivot Assembly but staying on the right hand side of the printer caretully listening for a scraping sound PRS Adham O A 11 If you hear a scraping sound that means that the Pivot Assembly is too high and needs to be lowered slightly Lower the Pivot Assembly slightly by turning the T 8 screw 1 8th of a turn clockwise and then check for a scraping sound again as shown previously in step 10 Cross Section Lowering the Pivot Assembly LA is tment invent 12_ If you don t hear a scraping sound that means that the Pivot Assembly is too low and needs to be raised slightly Raise the Pivot Assembly slightly by turning the T 8 screw1 8th of a turn anti clockwise and then check for a scraping sound again as shown previously in step 10 Cross Section Raising the Pivot Assembly PRS adham O A 13 Repeat steps 10 to 12 until you reach a point where you will hear the scraping sound and by turning the screw just 1 8th of a turn clockwise the scraping sound will disappear 14 Move the Carriage Assembly along the length of the Printer listening carefully for the scraping sound 15 If you don t hear the scraping sound then the PRS Adjustment is correct go to step 17 CD tia 16 Ifyou hear the scraping sound then you will need to lower the Pivot Assembly slightly by turning the T 8 screw 1 8th of a turn clockwise on both the left and right hand side of the Pivot Assembly Check for a scraping sound
13. in it s There should be no gap between the Calibration Stand datum Carriage and the rail O Pom vastecon soten Communication error with the Computer Numbers from the Calibration Stand are out of specification PRS Pen numbers are low The MP 1000 Display rebooted The MP 1000 Display was calibrated while still connected to the computer Probe Tip was not released onto the reference datum using the Solenoid switch Datum surfaces on the Calibration Stand are worn The Calibration Stand or the PRS Pen may have debris which is preventing the PRS Pen from either sitting correctly in it s datum or it might be affecting the reference surface The PRS Tools need to be recalibrated Wires inside the PRS Pen body are preventing the probe tip to move Probe tip is not locked tight onto the core Make sure that the MP 1000 Display is ON and is in run mode then restart the communications link Normally if the MP1000 Display controls are used while attached to the computer it will cause a break in the communication link Try to re establish the communication link after the MP1000 Display is setup and in run mode Always use the Solenoid switch to raise and lower the Probe Tip This will ensure that the Probe Tip drops straight down and will get stuck against the reference datum Check the Calibration using the Calibration Master Stand If the values are within specifications then
14. ion Stand i al bet PRS Pen Line Calibration Stand In addition the following equipment is also necessary to perform the PRS Adjustment E Lucas Shaevitz MP1000 Display m Agilent DC Power Supply Unit Part Number E3640A E Parallel to Serial Adapter E PC with 3 serial ports a PCI Card with 2 serial ports needs to be installed Lucas Shaevitz MP1000 Display Agilent Power Supply Unit Parallel to Serial Adapter PRS adhsmem O A Automatic PRS Adjustment Tool Set up Connections The equipment for the PRS Adjustment Tool needs to be set up as follows Check that the Agilent PSU has the correct voltage for use in your region before switching it On DO NOT connect the PRS Pen to the PSU until the voltage has been checked and if necessary reconfigured In order to correctly reconfigure the PSU refer to the documentation that accompanied the PSU ALLLLL ES BOLI Ezy 38 E 1234 PRS Cable 1 PCS Card 2 Serial Ports 2 PCDisplay Communication Cable 3 Serial Cable 9 pin female female connection 4 Agilent Power Supply Unit Part Number E3640A 5 Lucas Shaevitz MP1000 Display 6 PRS Pen 7 Centronics parallel Cable female male connection 8 Parallel Serial Adapter 9 Serial Cable standard 9 pin female male connection Power Supply Unit Configuration Communication Mode RS 232 Baud Rate 9600 bps Parity and Data Bits None 8 bits In order to correctly contigure the P
15. of common problems you may encounter while using the PRS Adjustment Tool and the possible causes and solutions Cable NN Solenoid ys s d Ca Cover Plate Lifter Front Plate Measurement PRS Pen cable is in a position that Check that the PRS Pen cable is NOT numbers are out of causes the Carriage to lift or is pulling the PRS Pen out of position specification affecting the position of the PRS Pen Probe tip is not on a rib Position the Carriage so that the probe tip is sitting flat on a rib Probe tip will not Probe tip is stuck against a pivot Check that the probe tip is not stuck raise rib against the edge of a rib Move the Carriage slightly in order to free the probe tip The Solenoid is not plugged in Make sure that the solenoid is energized when the button is pressed The lifter is binding inside the PRS Make sure that there is adequate Tool clearance around the wire lifter and that it is not hanging on any part of the PRS Pen Probe Tip will not The lifter might be binding inside Make sure that there is adequate lower the PRS Tool preventing the probe clearance around the wire litter and tip from full extension that it is not hanging on any part of the PRS Pen Measurement The Calibration Stand may have Check that the PRS Pen cable is NOT values are too high debris or it may be preventing the pulling the Carriage out of position when checking ina PRS Pen from sitting correctly
16. tal PRS Adjustment 2 When Required 2 Automatic PRS Adjustment 3 Introduction 3 Automatic PRS Adjustment Tool Set up Connections 4 Automatic PRS Adjustment Instructions 5 PRS Adjustment Tool Maintenance 17 Automatic PRS Adjustment Troubleshooting 18 Manual PRS Adjustment 20 hp designjet 90 90r 120 120nr and 130 130nr printer service manual PRS Adjustment invent When Required It is very important that you perform the PRS Adjustment whenever E The Pivot Assembly is removed or replaced E The Feed Roller Assembly is removed or replaced E The Carriage Assembly is replaced it is not necessary to perform the PRS Adjustment if the carriage is reseated b Carriage Assembly Pivot Assembly Feed Roller Assembly There are 2 different ways to perform the PRS adjustment E Automatic PRS Adjustment This is done in repair centers using the PRS Tool and the Control Application Page 5 3 E Manual PRS Adjustment This is used during on site repairs or when an automatic PRS adjustment is not possible gt Page 5 20 A tia Automatic PRS Adjustment Introduction The PRS Adjustment Tool is a measurement tool which is used to measure the pen to rib space PRS within the printer It is critical that the pen to rib space is correct and within the given specifications otherwise the printer will print with image quality problems The PRS Adjustment Tool consists of two separate tools Mm PRS Pen E Line Calibrat
17. the Mode while expected 1 different mode than the correct mode MFG and expected click on Retry C PRS 1 Target PRS values Pivot might be assembled Check that the Pivot position Adjustment for adjustment are too too high is away from the PRS pen Top small Potential crash Carriage Crash 2 Potential Carriage Based on the calculation Check that the carriage bushing missing the possibility of the busing is present and then Carriage Bushing missing click OK to proceed with adjustment If bushing is NOT present click NO to the failed test 3 Error adjusting PRS 3 Printer Out of Spec Repeat the entire test one at position more time PRS Adjustment Tool Maintenance The maintenance schedule for the PRS Tool should include the actions listed below As experience with the PRS Tool increases the maintenance schedule should be adjusted according to the actual wear of the PRS Tool Daily Maintenance E Inspect the Calibration Stand for dirt or debris and clean as necessary E Ensure that the probe tip moves freely when using the solenoid button Weekly Maintenance E Inspect tools for worn damaged or missing parts and replace as necessary E Inspect the latches and springs on the Calibration Stand E Inspect the PRS Pen cable and verify that there are no exposed conductors on the cable assembly msaduimey O A Automatic PRS Adjustment Troubleshooting The following table contains a list
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