NCR 7870 User Manual Download

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NCR 7870 Scanner/Scale

Release 1.0

User's Guide

BST0-2121-90
Issue G

Summary of Contents for 7870

Page 1: ...NCR 7870 Scanner Scale Release 1 0 User s Guide BST0 2121 90 Issue G...

Page 2: ...ein may not be marketed by NCR in all parts of the world In some instances photographs are of equipment prototypes Therefore before using this document consult with your NCR representative or NCR offi...

Page 3: ...090 1 4 7870 4000 9090 1 4 7870 4500 9090 1 4 Chapter 2 Features Functions and Kits General Features and Functions 2 1 Bar Code Recognition 2 1 Bi Optic Scanning 2 2 Decode Features 2 2 PACESETTER Plu...

Page 4: ...3 4 Customer Responsibilities 3 6 Environmental Requirements 3 7 Operating Range 3 7 Extreme Operating Range 3 7 Storage Range 3 8 Transit Range 3 8 Checkstand Power and Wiring Considerations 3 9 Powe...

Page 5: ...rface Cables NCR Host Terminals 3 23 Interface Cables NCR Host Terminals cont 3 24 Interface Cables NCR Host Terminals cont 3 25 Interface Cables Casio Host Terminals 3 25 Interface Cables Data Checke...

Page 6: ...00 4000 and 4500 Scanner Scales 4 8 If the NCR 7870 Does Not Pass Level O Diagnostics 4 8 Checkout Reading Operation 4 9 Programming 4 9 Determining Communications Protocol 4 10 Scale Address for IBM...

Page 7: ...cale Zero Button 6 3 Audible Tone 6 3 Voice Messages 6 3 About Using the Scanner 6 4 Proper Label Orientation 6 4 Active Scan Zone 6 5 Multiple Reads 6 5 Bar Code Quality 6 6 Operating Instructions 6...

Page 8: ...6 Default 7 7 End 7 7 Hex 0 Hex F 7 7 Programming Mode 7 8 Save and Reset 7 8 Program Entry Example 7 9 Programming Tips 7 12 Program Parameter Descriptions 7 13 Communications Protocol 7 13 Defaults...

Page 9: ...Bar Codes 4 7 31 Defaults 7 31 Specific Program Parameters 7 31 Program Example 7 32 Label Identifiers 7 33 Defaults 7 33 Specific Program Parameters 7 34 Program Example 7 37 RS 232 Parameters 1 7 3...

Page 10: ...ameters 7 55 Defaults 7 55 Specific Program Parameters 7 55 Program Example 7 57 PACESETTER Plus Information 7 59 Mode 1 Inquiry 7 59 Mode 2 Real Time 7 60 Mode 3 Normal 7 62 Host Access to Tallies 7...

Page 11: ...8 Troubleshooting Fault Identification 8 1 Scanner Troubleshooting Chart 8 2 Scale Troubleshooting Chart 8 3 Voice Messages Troubleshooting Chart 8 5 Appendix A Programming Worksheets General A 1 Purp...

Page 12: ...cord Issue Date Remarks A Oct 92 First Issue B Dec 92 Miscellaneous Changes C Feb 93 Miscellaneous Changes D Jan 94 Miscellaneous Changes E Oct 94 Miscellaneous Changes F Feb 99 Complete Revision G No...

Page 13: ...elevision interference caused by unauthorized modification of this equipment or the substitution or attachment of connecting cables and equipment other than those specified by NCR The correction of in...

Page 14: ...comply with can result in criminal prosecution and jeopardize the ability to conduct normal business The NCR 7870 Scanner Scale has been certified in many countries Contact the NCR Office of Weights M...

Page 15: ...vard Dayton OH 45459 USA declares that the equipment specified conforms to the referenced EU Directives and Harmonized Standards EU Directive Harmonized Standard s 89 336 EEC EMC EN 55022 1987 CISPR 2...

Page 16: ...l 7875 2000 Max 30 00 Ib Min 0 2 lb ID e d 0 01 lb Nmax3000 Approval Lim 44 00 lb 10 C 40 C Serial No 13 995 Kilogram kg Label Pound lb Label Removing Label causes VOID Indication NCR CORPORATION Mode...

Page 17: ...safe if used as it was intended Laser Safety Label R0130 IEC CLASS 1 LASER PRODUCT Class IIa Laser Product Avoid Long Term Viewing of Direct Laser Light Appareil laser de classe IIa Dviter toute expo...

Page 18: ...e Country Language Specific IEC Class 1 Laser Labels CLASS 1 LASER PRODUCT IEC 825 APPAREIL A LASER DE CLASS 1 LASER KLASS 1 Zeitbasis 1000 s PRODUCTO LASER CLASE 1 LUOKAN 1 LASERELAITE KLASS 1 LASER...

Page 19: ...y with 21CFR1040 USE ONLY AS A COMPONENT Laser Power The NCR 7870 Scanner meets the following laser power requirements Class IIa CDRH Center for Devices and Radiological Health Class 1 EN60 825 Europ...

Page 20: ...tion 0 87 microwatts Accessible Emission Limit CDRH Calculation 3 9 microwatts Maximum Radiant Power EN60825 1 IEC 825 1 Calculation 0 45 milliwatts Accessible Emission Limit EN60825 1 IEC 825 1 Calcu...

Page 21: ...the models features and kits available for the 7870 line of scanner scales To familiarize you with the 7870 there is a general overview on the unit the models and major components Power Supply R0122...

Page 22: ...ble as an upgrade over the Standard Decode feature analyses and corrects information from defective labels PACESETTER Plus also keeps track of bad labels so you can identify products and manufacturers...

Page 23: ...ode Interfaces for popular host terminals Large selection of power cords to meet custom and regional needs while providing flexible configurations with the universal power supply Data cables ordered s...

Page 24: ...With the scale bed removed the length is reduced to 34 3 cm 13 5 in to fit in European checkstands where space is tight and the checker is often seated 7870 4000 9090 This is the subcompact scanner sc...

Page 25: ...a number of bar codes including UPC A Code 39 Code 3 of 9 UPC E Code 128 UPC D limited set Interleaved 2 of 5 EAN 8 13 Add On Codes JAN 8 13 It is possible that in some situations the 7870 may be abl...

Page 26: ...CESETTER Plus upgrade includes the Standard Decode PACESETTER Plus Bar code labels in a retail environment are occasionally unreadable Labels can be overprinted underprinted or truncated Others may ha...

Page 27: ...readability to the UPC EAN data The host terminal must be capable of receiving the trailer and configured appropriately Displays A display separate from the host terminal is useful and sometimes requ...

Page 28: ...ll obstruct the view of the integrated display In this case it may be advantageous to install an NCR 7825 Post Mounted Display which can be used with or without an integrated display Integrated Displa...

Page 29: ...e laser and spinner motor A 24 line convergent scan pattern 12 lines per scan window is generated by the laser diode A 3 Phase DC brushless motor spins a tetrahedral mirror at 6000 RPMs The laser beam...

Page 30: ...e Sizes section in Chapter 3 Site Preparation Power Cable To AC Power Cord To Unit Outboard Power Supply 16822 Programming the 7870 The NCR 7870 is featurized to fit a customer s needs by using progra...

Page 31: ...fications are available for these markets Market 9 95 kg 13 995 kg 30 lb Argentina Australia Brazil California Canada Czech Republic Europe Hong Kong Indonesia International Mexico New Zealand People...

Page 32: ...raws low current and produces little heat The light produced by the scanners in current models has been shifted toward the edge of the visual spectrum so it is not possible to see the scan pattern in...

Page 33: ...scan window are replaced The current line of 7870 Scanners and Scanner Scales have been upgraded to come with the Stainless Steel Top Plate as a standard feature Older 7870 units may have the painted...

Page 34: ...l scan window is mounted in a tower that rises above the checkstand surface The scan window can be removed from the unit for cleaning The upper console containing the scan window is designed to withst...

Page 35: ...of load cells For weighing in pounds Capacity 30 lbs For weighing in kilograms Capacity 9 995 kg For weighing in kilograms Capacity 13 995 kg Reset Scale Zero A front mounted Scale Reset button is lo...

Page 36: ...7870 K005 V002 Hardware 7870 1000 7870 2000 Scale Shell Model 7870 K007 V001 Hardware N A Digital Board Upgrade Board Firmware 7870 K100 V001 Hardware Firmware All Requirements For units with S Ns bel...

Page 37: ...t with a lower S N install kit 7870 K100 13 995 kg Upgrade 7870 K440 V001 Firmware Hardware 7870 2000 Requirements For upgrade from 9 995 kg to 13 995 kg on units with S Ns 50 28901727 and higher To u...

Page 38: ...nals NCR 2170 RS 232 Weightronix Emulation Avery Emulation RS 232 Datachecker RS 422 ICL MDL ICL 9518 ICL 9535 ICL Team POS 5000 SASI V001 supports only ICL T2001 V002 supports units with S Ns 50 2890...

Page 39: ...F 1 7870 K465 V001 Hardware Firmware 7870 2000 Requirements 7870 must be configured for OCIA or IBM communications Avery Emulation RS 232 Weightronix Emulation RS 232 for scanners with an I F 1 Inter...

Page 40: ...ina requirements unit must have a S N 50 28901727 or higher and b an NCR 7825 Remote Display Coupon Add On Code Upgrade 7870 K850 V001 Firmware All Requirements For units with S Ns between 50 28901727...

Page 41: ...or kit 7870 K899 V001 V002 is for use in U S and Mexico only A Checkpoint representative must make the final connection from the 7870 to the Checkpoint equipment after kit installation Checkpoint Scan...

Page 42: ...2 18 Chapter 2 Features Functions and Kits...

Page 43: ...e conditions are met and maintained will protect the 7870 from unnecessary wear and potential damage as well as easing installation This chapter covers Getting Started About Site Preparation Customer...

Page 44: ...ll other electronics be placed in checkstand which could necessitate use of forced air to regulate the temperature Will the power circuit to supply the 7870 be dedicated to NCR equipment only and so l...

Page 45: ...ctions contain the NCR 7870 s requirements These specifications will allow you to evaluate the site for installation The last step is to implement the necessary changes before beginning the installati...

Page 46: ...vant codes laws and regulations It is important that the site be prepared by a customer or a customer agent who is fully conversant with the special requirements of electronic equipment The responsibi...

Page 47: ...d NCR is not liable in respect of any comment suggestion or advice given by its staff or in respect of any failure to give advice Finally only the customer can know the full extent of damage which may...

Page 48: ...vironmental systems that prevent static electricity build up and discharge Provide and install necessary power distribution boxes conduits grounds lightening arrestors and associated hardware Make sur...

Page 49: ...ure 79 5 x 103 Pa to 105 x 103 Pa Ambient Light 200 Foot candles max 2152 Lux on both scanner windows Acoustical Noise 55 dBa or less Vibration and Shock 1 to 10 Hz with a double amplitude of 0 127 cm...

Page 50: ...F Temperature Change 20 C per hour 36 F per hour Relative Humidity 5 to 95 Non Condensing Transit Range Condition Range Temperature 40 C to 60 C 40 F to 140 F Temperature Change 20 C per hour 36 F pe...

Page 51: ...watt switching power supply with the following inputs Voltage Frequency Input Power 90 to 260 Vac 47 to 63 Hz 55 Watts Power Applications The 7870 has no ON OFF switch A recessed 15 amp circuit break...

Page 52: ...nput Voltage L1 L2 Circuit Breakers U S Canada Japan European International 100Vac to 120Vac 220Vac 220Vac to 240Vac 100Vac to 120Vac 220Vac 220Vac to 240Vac Standard single pole value determined by t...

Page 53: ...run in metal conduit The electrical wiring must meet state and local electrical codes laws and regulations European double pole circuit breakers NCR circuits should be run in seprate metal Conduits Is...

Page 54: ...run in metal conduit The electrical wiring must meet state and local electrical codes laws and regulations Standard single pole circuit breakers NCR circuits should be run in seprate metal Conduits I...

Page 55: ...such as checkstand belt motor counter lighting and cooling fans Line 2 is dedicated to service the NCR equipment typically Circuit B and Circuit C Circuit A 3 Electrically connect the grounding condu...

Page 56: ...sed it should be near the operator and recessed Circuit C The power conductor in Circuit C to the NCR 7870 should include a 15 Amp circuit breaker located near the operator The circuit breaker should...

Page 57: ...late optional Ventilation Requirements The NCR 7870 Scanner Scale does not need an exhaust fan in the checkstand provided there is adequate convection air flow no other equipment in the checkstand rai...

Page 58: ...f the 7870 from the checkstand A 20 3 cm 8 0 in minimum if checkstand structure is not removable for servicing 2 5 cm 1 0 in minimum if checkstand structure is removable for servicing B 33 0 cm 13 0 i...

Page 59: ...rements requirement International countries should check with their appropriate local or government agency If the checkstand design restricts viewing the NCR 7825 Remote Display may be used to meet vi...

Page 60: ...the top of the checkstand For proper scale operation the clearance between leading and trailing edges of the Top Plate and the checkstand must be maintained For European installations a 5 1 cm 2 in b...

Page 61: ...eckstand top No electronics under NCR 7870 D C C A B E R0119 NCR 7870 1000 Scanner A B C D E F G H 11 5 8 in 29 51 cm 20 1 16 in 50 95 cm 1 3 8 in 3 49 cm 3 8 in 0 95 cm 17 5 16 in 43 97 cm 1 3 8 in 3...

Page 62: ...29 51 cm 16631 NCR 7870 4000 4500 Scanner Scale The 7870 3000 4000 and 4500 must sit on a shelf below the checkstand surface It cannot be suspended like the other units Also the shelf should be open a...

Page 63: ...gth and hole size data for AC Power Cords DC Power Cables Interface Cables and Remote Display Cables The NCR 7870 can connect to any NCR Retail Terminal as well as many competitive host terminals so a...

Page 64: ...Tail 3 05 Meters 10 Feet Japan Standard 3 05 Meters 10 Feet Japan Twist Lock 3 05 Meters 10 Feet Australia 3 05 Meters 10 Feet UK Argentina 3 05 Meters 10 Feet Swiss 3 05 Meters 10 Feet Remote Displa...

Page 65: ...Dual Cable Scanner 1416 C014 0040 497 0300361 4 m 13 1 ft Dual Cable Scanner 1416 C014 0080 497 0300362 8 m 26 2 ft Dual Cable Scale 1416 C015 0040 497 0300371 4 m 13 1 ft Dual Cable Scale 1416 C015...

Page 66: ...44 8 m 26 2 ft 2557 OCIA Dual Cable Scanner 1416 C026 0040 497 0300521 4 m 13 1 ft Dual Cable Scanner 1416 C026 0080 497 0300522 8 m 26 2 ft Dual Cable Scale 1416 C027 0040 497 0300533 4 m 13 1 ft Dua...

Page 67: ...2 ft Dual Cable Scale 1416 C013 0040 497 0300350 4 m 13 1 ft Dual Cable Scale 1416 C013 0080 497 0300351 8 m 26 2 ft 7445 RS 232 Single Cable 1416 C019 0040 497 0300422 4 m 13 1 ft Single Cable 1416...

Page 68: ...ker Single Cable 1416 C062 0040 497 0301152 4 m 13 1 ft Interface Cables Epson Host Terminals Minimum Hole Diameter 1 90 cm 0 75 in Host Terminal Interface Cable Corporate ID Part Number Length Epson...

Page 69: ...able 1416 C070 0040 497 0301390 4 m 13 1 ft Single Cable 1416 C070 0080 497 0301390 8 m 26 2 ft PC RS 232 9 pin Single Cable 1416 C019 0040 497 0300422 4 m 13 1 ft Single Cable 1416 C019 0080 497 0300...

Page 70: ...7 0404766 8 m 26 2 ft Dual Cable Scanner 1416 C227 0040 497 0301031 4 m 13 1 ft 9520 RS 232 RS 232 9 Pin D Shell Dual Cable Scale 1416 C226 0040 497 0302021 4 m 13 1 ft RS 232 Single Cable 1416 C019 0...

Page 71: ...Dual Cable Scanner 1416 C342 0040 497 0407544 4 m 13 1 ft Dual Cable Scale 1416 C343 0040 497 4070545 4 m 13 1 ft ex 10 RS 232 Dual Cable Scanner 1416 C341 0040 497 0407543 4 m 13 1 ft Dual Cable Sca...

Page 72: ...eparation NCR 7870 Dimensions NCR 7870 1000 2000 Models NCR 7870 1000 Dimensions A B C D 11 1 2 5 6 20 51 cm 28 3 cm 13 cm 15 3 cm A B C D NCR 7870 2000 Dimensions A B C D 12 5 6 17 1 4 43 8 cm 30 5 c...

Page 73: ...Chapter 3 Site Preparation 3 31 NCR 7870 3000 Model C B A NCR 7870 3000 Dimensions A B C 11 5 16 11 1 2 11 28 cm 28 8 cm 28 2 cm 16879...

Page 74: ...3 32 Chapter 3 Site Preparation NCR 7870 4000 4500 Models NCR 7870 4000 4500 Dimensions A B C D A B C D 12 5 6 17 1 4 43 8 cm 30 5 cm 13 cm 15 3 cm 16880...

Page 75: ...hipping carrier before signing the bill of lading If the scanner scale has been damaged due to shipping notify the carrier and an NCR representative If the unit was not purchased directly from NCR not...

Page 76: ...ps require two cables A list of available interface cables is provided in the NCR 7870 Repair Guide BD20 0966 A Checkstand Verification Verify as a minimum that the checkstand is prepared according to...

Page 77: ...tout in the checkstand counter 6 Pass Power Cord down through cutout and plug into dedicated NCR power receptacle 7 Connect communication interface cables to host terminal or PC Because installation v...

Page 78: ...le interface cable on dual cable installations 9 See following diagrams for installation information for single dual cable and Datachecker RS 232 set ups Single Cable Set Up DC POWER REMOTE DISPLAY SC...

Page 79: ...Up AC Power Cord DC Power Cable 7870 Scanner Scale Remote Display Interface Cable Power Supply Host Terminal Interface Cable Display Cable DC POWER DISPLAY OUTPUT SCANNER DISPLAY INPUT SCALE DC POWER...

Page 80: ...n Box Host Terminal 11628 Note Use the Terminal Junction Box as needed to provide additional ports Contact your terminal vendor for ordering information 10 If the checkstand counter has adjustable pos...

Page 81: ...nches of each corner to prevent rocking Also the leading edge of the Top Plate must be flush or up to 0 15 cm 0 06 in below the counter top The trailing edge of the Top Plate must be flush with the ch...

Page 82: ...display are turned ON so the operator can verify the display works correctly Then the display reads Ready 0 000 kg Ready 0 00 lb The Status Indicator flashes red for five seconds then the Status indi...

Page 83: ...ady to scan a label A good read is indicated when the Status indicator turns green and a tone sounds if enabled Programming Your NCR 7870 comes from the factory with the programming parameters set to...

Page 84: ...protocol is given audibly If the Voice feature is not enabled the Status Indicator flashes green and the tone beeps identifying the communication protocol Tone Communications Protocol Hex Code 1 shor...

Page 85: ...single cable feature of the NCR 7870 If there are no other ports used on the B or C feature card you can remove the feature card from the terminal even though it is configured to be installed If the...

Page 86: ...4 12 Chapter 4 Installation...

Page 87: ...h governmental Weights and Measures regulations you must be certified to perform the scale calibration procedure and place the scale into service for trade You MUST calibrate the scale when any of the...

Page 88: ...Set NCR Part Number 998 0633009 Fractional Pound Weight Set NCR Part Number 998 0633012 Kilogram Weight Set Obtain locally The EEPROM on the Scale Board maintains an audit trail of scale calibration a...

Page 89: ...or your Scanner Scale Weight Feature Total Weight on Top Plate 9 995 kg 0 0 kg 2 5 kg 5 0 kg 10 0 kg 5 0 kg 2 5 kg 0 0 kg 13 995 kg 0 0 kg 2 5 kg 5 0 kg 15 0 kg 5 0 kg 2 5 kg 0 0 kg 30 0 lb 0 0 lb 5 0...

Page 90: ...located on the Scale Board For security this switch is not readily accessible and may be secured with a lead wire seal or seal sticker Instructions 1 Remove power from unit 2 Remove Top Plate a Press...

Page 91: ...p Assembly Subplate Assembly Tab Slot c Insert screwdriver blade into Tab Slot Twist to free tab d Lift the front of Subplate Assembly into a nearly vertical position Pull the back edge from under the...

Page 92: ...under shield Scale Board Shield 11040 5 Set Top Plate on rubber bumpers of Scale Hinge Assembly Make sure bumpers fit into corresponding sockets on bottom of Top Plate 6 Apply power to 7870 7 Does the...

Page 93: ...when no other display is available To connect the Field Service Calibration Display perform the following Instructions 1 Remove Tower Cabinet Note On some models taking the Top Plate off first may mak...

Page 94: ...ce Calibration Display to J 4 on the LC Digital Board J 5 on the old Digital Board LC Digital Board J3 J1 Old Style Digital Board Integrated Display Connector J3 J2 DS1 J5 J4 11279 d Apply power to NC...

Page 95: ...d and kilogram weights used for calibration are not equivalent values They are the actual weights the firmware needs to perform the calibration Instructions For the purpose of this procedure a scale s...

Page 96: ...ll indicate Ready C 15 00 lb 5 000 kg 9 Add a 10 00 lb 2 500 kg weight in center of Top Plate Total weight on scale should be 15 lbs 5 00 kg 10 Press Reset Scale Zero button Display will indicate Read...

Page 97: ...analog converter Scale Board Load Cell 2 Calibration error A D output below 280h at digital to analog converter Scale Board Load Cell 3 Calibration error Analog to digital converter output too high at...

Page 98: ...0 2 lb 2 5 0 00 kg 2 5 0 00 kg 5 0 0 00 lb 3 9 995 kg 13 995 kg 30 0 lb 2 5 kg 4 5 kg 5 0 lb 5 0 0 005 kg 7 0 0 005 kg 10 0 0 01 lb 4 9 995 kg 13 995 kg 30 0 lb 2 5 kg 3 0 kg 10 0 lb 7 5 0 005 kg 10 0...

Page 99: ...tructions 1 Use the following chart to select the correct weight 2 Follow steps on chart for adding and removing weights Weight must be placed in center of Top Plate Step Weight Feature Add Weight Rem...

Page 100: ...e 2 Follow the four steps shown in chart Step Weight Feature Add Weight Remove Weight Display 1 9 995 kg 13 995 kg 30 0 lb 2 495 kg 3 995 kg 10 0 lb 7 5 0 005 kg 10 0 0 005 kg 20 0 0 01 lb 2 9 995 kg...

Page 101: ...ght for each position 3 Move weight back to Position 1 and record measured value 4 All measurements should fall within 15 00 lb 0 01 lb for 30 00 lb scales 5 000 kg 0 005 kg for 9 995 and 13 995 kg sc...

Page 102: ...h Tower Cabinet in place and access to the Calibration Switch Prior Steps Calibration Switch accessible See Section 2 Accessing the Calibration Switch Tools Needle nosed Pliers Lead Wire Seal P N 603...

Page 103: ...of Subplate under edge of Tower Cabinet c Gently press Subplate into position on unit chassis Ensure Retaining Tab snaps into slot d Install Cover Lift Strap in access hole Tighten screw and snap cove...

Page 104: ...5 18 Chapter 5 Calibration...

Page 105: ...an Window Horizontal Scan Window TopPlate Operator Display Panel RESET SCALE ZERO Scanner Operator Display Panel RedStatus Indicator Green Status Indicator Reset Zero Indicator Reset Scale ZeroButton...

Page 106: ...een Flashes once to indicate a successful bar code read After scanning Yellow Indicates scale has been reset zeroed Signals a scale error code may be on display When Scale Zero button is pressed Prima...

Page 107: ...cessful bar code read This may be easier for the checker than watching the Status Indicators The tone s frequency volume and duration can also be set via programming The NCR 7870 comes from the factor...

Page 108: ...i optic scanning labels can be read from many angles Labels can be read from the leading trailing bottom and opposite sides of a package Bar code labels can be scanned from left to right or right to l...

Page 109: ...ead is reported if a label is placed within the scan zone and left there Scanner firmware prevents a second read of the same label if it occurs within a preset time of a good read The preset time is t...

Page 110: ...5 9 0 6 0 1 2 3 4 6 7 8 5 9 0 6 0 1 2 3 4 6 7 8 5 9 0 6 0 1 2 3 4 6 7 8 5 9 0 6 R0026 The readability of a label depends on variables such as size placement color paper type ink viscosity and package...

Page 111: ...s call a supervisor service company or the NCR Customer Service Center for assistance Scanner Only Models For the 1000 and 3000 models if no error occur during power up the unit will enter Startup Mod...

Page 112: ...ed The red Status Indicator will light indicating the unit is ready to read another bar code 6 If a good read does not occur scan the item again 7 If a good read still does not occur manually enter in...

Page 113: ...2 If display or Status Indicator is not on press Reset Scale Zero button If this does not work power unit off and on 3 Place an item on center of Top Plate Ensure item does not overhang Item must res...

Page 114: ...rogramming Mode Instructions 1 Scan the Volume Adjustment tag and listen to the tone 2 If the tone is not loud enough scan the tag again Repeat if necessary 3 If the tone is too loud scan the tag repe...

Page 115: ...indow becomes excessively scratched replace it If the unit becomes wet due to a spill clean and dry as soon as possible Instructions Clean the Top Plate and Scan Windows with a soft cloth and a non ab...

Page 116: ...6 12 Chapter 6 Operation...

Page 117: ...nges are needed the procedure is very simple This chapter is divided into five sections How to Program the NCR 7870 which describes Creating the Program Programming Mode Programming Tags Programming E...

Page 118: ...eset of Tallies Special Programming discusses functions that fall outside of normal programming such as Delay Weight Data to IBM Host Terminal EAN JAN UPC Multi Symbol Scanning Parameters Early Beep D...

Page 119: ...orksheet Write the entries of your program in the space provided Refer to Programming Modes for specific information about each parameter Step 2 Entering the Program a Enter the Base Programming State...

Page 120: ...rs that you entered This becomes the new scanner program The scanner goes through initial startup and operates using the new program b Save your Programming Worksheets Be sure to save your programming...

Page 121: ...program parameters that you can enter in a Specific Programming Mode are identified on the associated programming worksheet In each Specific Programming Mode you can enter all the information containe...

Page 122: ...mming State If this tag is scanned in the Base Programming State programming is terminated and no previously entered parameters are saved Indication In Base Programming State Short beep as soon as tag...

Page 123: ...e determines the end of most sequences this tag is not used often Indication Short beep as soon as tag is read Good Read tone Status indicator flashes green once Hex 0 Hex F Function These 16 tags ent...

Page 124: ...tag Indication Short beep as soon as tag is read Good Read tone Long and short beep in Base Programming State Status indicator off Save and Reset Function This tag causes the NCR 7870 to save and star...

Page 125: ...mode you proceed linearly through the work sheet When you make a change in a parameter the scanner moves to the next parameter to be changed or it goes back to the Base Programming State if your selec...

Page 126: ...enter only one particular parameter in a Specific Programming Mode scan the two numbered Hex tags that correspond to that specific mode However once you have entered the specific programming mode inst...

Page 127: ...n to programming you scan the Hex 1 and Hex 4 tags again and re enter the Specific Programming Mode From this point you can enter either all parameters or another specific parameter 11723 BASE PROGRAM...

Page 128: ...mode without saving any parameter changes scan the Abort tag while in the Base Programming State The NCR 7870 goes through initial startup and operates using the old program If you do not know how you...

Page 129: ...Communications Interface Board Also since there is no default Communications Protocol the Default tag does not change this parameter Defaults Parameter Default Value Protocol No Default Specific Prog...

Page 130: ...cations and is not the same as the data format used in Single Cable OCIA even though both formats use long format OCIA hardware Use the Hex 1 to enable this protocol OCIA Non NCR Dual Cable Hex 2 The...

Page 131: ...tions device This protocol uses 7 bit ASCII to send tag and scale data to the device Use the Hex 5 tag to enable this protocol OCIA Single Cable Hex 6 tag The OCIA Single Cable scanner scale format is...

Page 132: ...d on IBM terminals The scanner uses terminal port 17 and the select address is set to 4B If your unit is a scanner scale the IBM address default setting is to 6E but can be programmed to 6A or 6B The...

Page 133: ...ess 4A 3 IBM 468x 9x Address 4B HHBCR 4 RS 232 5 OCIA Single Cable 6 OCIA NCR Dual Cable 7 Casio 4 Bit Parallel Dual Cable A IBM 1520 BRC IBM 468x 9x Port 4B B TEC 4 Bit Parallel Dual Cable C Programm...

Page 134: ...On Off On Tone Frequency No Default Tone Length No Default Tone Volume No Default Not on File Tone No Default Specific Program Parameters Not On File Tone Volume The Hex E tag permits you to select t...

Page 135: ...default is to turn the Good Read Tone on Tone Volume The Hex D tag permits you to select the volume of the Good Read tone by listening to it as you repeatedly scan the Hex D tag End this mode by scann...

Page 136: ...he same bar code again The Lockout Time parameter selects the lockout time There are 8 different times ranging from 450 milliseconds to 1500 milliseconds in increments of 150 milliseconds Select these...

Page 137: ...vely The default time is 15 minutes Selecting no shut down results in the scanner scale being active all the time Note NCR suggests that you do not set the Active Time parameter to no shut down Leavin...

Page 138: ...EAN parameter controls reading UPC EAN bar codes Disable reading UPC EAN bar codes by scanning the Hex 0 tag and enable reading by scanning the Hex 1 tag The default is to enable reading If you choose...

Page 139: ...ameter option Periodic Codes The Periodical Codes parameter controls the processing of Periodical Codes Disable Periodical Codes by scanning the Hex 0 tag and enable them by scanning the Hex 1 tag The...

Page 140: ...scan the Hex 2 tag a hexadecimal CF is sent as the extension if the scanner scale could not read a 2 or 5 digit code The default is Data as Decoded Scanning a valid Hex tag causes the program to go to...

Page 141: ...ding by scanning the Hex 1 tag The default is to disable reading If you choose to disable reading Code 39 bar codes there are no other entries allowed for this parameter However if you enable reading...

Page 142: ...a check digit is not present Scan the Hex 0 tag to disable this option or the Hex 1 tag to enable it Disable is the default Transmit Check Digit The Transmit Check Digit parameter selects whether to s...

Page 143: ...he following options Code 39 enabled Minimum Characters Allowed 5 Full ASCII disabled Check Digit Present enabled Transmit Check Digit enabled Allow One or Two Character Tags disabled Your Program Bar...

Page 144: ...Specific Program Parameters Interleaved 2 of 5 The Interleaved 2 of 5 parameter controls reading Interleaved 2 of 5 bar codes Disable reading Interleaved 2 of 5 bar codes by scanning the Hex 0 tag an...

Page 145: ...Bar Code Length If you select the Range Check method Value 1 specifies the minimum number of characters in a valid Interleaved 2 of 5 bar code and Value 2 specifies the maximum number of characters I...

Page 146: ...ollowing is an example of a completed Bar Codes 3 programming worksheet In this example Interleaved 2 of 5 is programmed for the following Interleaved 2 of 5 enabled Bar Code Length range check method...

Page 147: ...the programming tags that are Code 128 The default is to disable reading Code 128 bar codes Minimum Data Characters Allowed The Minimum Data Characters Allowed refers to the Code 128 characters on a n...

Page 148: ...leted Bar Codes 4 programming worksheet In this example the Code 128 bar codes are programmed for the following Code 128 enabled Minimum Data Characters Allowed 3 UCC 128 disabled Your Program A B 1 7...

Page 149: ...modes of communication are determined by the firmware and are not programmable Defaults Parameter Default Value Identifier Type Default Prefix Common Byte 1 5D Common Byte 2 42 Bar Code Type No Defau...

Page 150: ...tag to use the default prefix The default label identifiers vary depending on the type of bar code read Following are the default identifiers for each bar code type a UPC A 41H NS X1 X2 X3 X4 X5 X6 X7...

Page 151: ...fier Bar Code Data Common Byte 1 Common Byte 2 Unique Identifier Bar Code Data Unique Prefix UPC Version D Unique Identifier Bar Code Data Common Byte 1 Unique Identifier Bar Code Data Common Byte 2 U...

Page 152: ...code type Scan the Hex 0 through Hex 7 tag to enter the appropriate Bar Code Type Since you must select each of these individually for your application there is no default for this parameter Common B...

Page 153: ...rameter can be used only if you specified UPC D as the bar code type To include the Version Number in ASCII scan the Hex 1 tag scan the Hex 0 tag if you do not want to include the Version Number The d...

Page 154: ...ar Code Type Code 128 Common Bytes Common Byte 1 Unique Identifier 43 C Your Program NOTE Scan the End tag to end the Label Identifier Programming mode A Identifier Type 3 Common Byte1 B B 5 Label Ide...

Page 155: ...rameters Baud Rate The Baud Rate parameter contains seven selections 300 Baud 600 Baud 1200 Baud 2400 Baud 4800 Baud 9600 Baud and 19200 Baud Scan the appropriate Hex 0 through Hex 6 tag to set the de...

Page 156: ...one stop bit is sent Scan the appropriate Hex 0 through Hex 3 tag to set the Stop Bits and Character Length The default is 1 Stop Bit and 7 Bit Character Length Handshake The Handshake parameter conta...

Page 157: ...worksheet In this example the following are selected Baud Rate 9600 Baud Parity Even Stop Bits and Character Length 1 stop bit and 8 data bit character length Handshake Raise RTS and Wait For CTS You...

Page 158: ...Options The BCC Option parameter permits you to enable or disable the use of BCC at the end of a message When enabled the BCC is the last character sent and is the Exclusive OR of each byte sent prio...

Page 159: ...e scanner scale is sending a message when it receives an XOff since these messages can be received any time data transmission stops after sending the current byte When the scanner scale receives the n...

Page 160: ...S 232 Parameters 2 programming worksheet This example shows the following program selections BCC Option enabled Interface Control ACK NAK Check Digit enable UPC A UPC E EAN 8 and EAN 13 Your Program 2...

Page 161: ...ions Disable and Enable Scan the Hex 0 tag to disable the Prefix Byte or the Hex 1 tag to enable it The default is Disable ASCII Code The ASCII Code parameter permits you to specify what ASCII code to...

Page 162: ...completed RS 232 Prefix Byte programming worksheet This example shows the Prefix Byte enabled and ASCII Code STX 02 Hex transmits as the leading character of each message sent to the host terminal You...

Page 163: ...e If you select Enable the ASCII code you programmed is sent Defaults Parameter Default Value Terminator Byte Disable ASCII Code 03 Specific Program Parameters Terminator Byte The Terminator Byte para...

Page 164: ...ult for this parameter is 03 Program Example Following is an example of a completed RS 232 Terminator Byte programming worksheet This example shows the Terminator Byte enabled and ASCII code CR 0D Hex...

Page 165: ...fic Program Parameters Normal or Eavesdrop Mode The normal mode is used for most RS 232 connections However an eavesdrop mode is available to permit another device to monitor the communications betwee...

Page 166: ...scanner or scale In some circumstances a host terminal may not be able to handle the normal format sent to it In that case selecting one of these options permits you to use the other format The Model...

Page 167: ...ormat is that the scanner scale format has an address and a function code following the optional Prefix Byte For more detailed information on message formats refer to the NCR Scanner Scale Interface P...

Page 168: ...t This example shows the following programming selections Message delay 10 ms Format Scanner only Normal or Eavesdrop Normal Mode Scale Weight Transmission Beep Your Program 12164 2 4 RS 232 Communica...

Page 169: ...umber parameter specifies if your unit is an NCR 7870 1000 3000 Scanner or an NCR 7870 2000 4000 or 4500 Scanner Scale This parameter is set at the factory and should not need changing under normal ci...

Page 170: ...scale does not you should try using the other two scale addresses 9 995 kg 13 995 kg The 9 995 kg 13 995 kg parameter toggles between a maximum weight of either 9 995 kg or 13 995 kg Use the Hex B tag...

Page 171: ...Enabled OCIA Blank Display in Price Mode Disabled Enable Disable Voice Messages No Default IBM Tag Data Format Hex Specific Program Parameters 5 Second Weight Display Timer This timer controls how lo...

Page 172: ...tion from the terminal If you select disable by scanning the Hex 5 tag the scale does not accept or display any price information IBM Rexmit Control When you use an IBM terminal and the scale detects...

Page 173: ...elsewhere IBM Tag Data Format This option is included because most IBM devices that have a select address of 4B require the bar code data to be transmitted as ASCII characters For hand held bar code...

Page 174: ...rogram Miscellaneous Parameters 3 2 IBM Tone Control 3 OCIA Price Display 6 IBM Rexmit Control 7 OCIA Blank Display in Price Mode A Toggle Enable Disable of Voice Messages F IBM Tag Data Format 1 5 Se...

Page 175: ...Type Description Maximum Count C1 Good Reads 1 000 000 C2 No reads due to lack of a full label bars missing folded label etc 65 535 C3 Good reads with very highly overprinted bars 65 535 C4 Good reads...

Page 176: ...s off line and disables the scale so that the integrated display or the NCR 7825 Remote Display can show Ready 4 label Every subsequent scan until the scanner is powered off or the Scale Zero Button i...

Page 177: ...d label or inconsistent printed Code 3x Decoding was difficult due to fragmented folded or inconsistently printed label Code 98 Label cannot be decoded due to missing print lines Code 99 Label cannot...

Page 178: ...on 6 Scan the Save and Reset tag The PACESETTER Plus information describes the label readability much the same way as described in Mode 2 However the host software must be capable of receiving the ext...

Page 179: ...ently printed label y 1 Label appears to be highly underprinted y 2 Label appears to be highly overprinted y 4 Label appears to have missing bars or margins y 5 Label appears to be highly underprinted...

Page 180: ...dH 32H 32H C3 00H 33H 3DH 32H 33H 33H 3dH 32H 33H C4 00H 33H 3DH 32H 34H 33H 3dH 32H 34H C5 00H 33H 3DH 32H 35H 33H 3dH 32H 35H Note Parity BCC and so on appropriate to the communication protocol must...

Page 181: ...H 30H 30H 32H 33H Example 3 Scanner Address Frame Counts Scanner Status Bytes 3 Pacesetter Plus Group Code Seven Bytes BCD Data Pacesetter Plus Function Code CRC Bytes 2 End Byte Address Frame Request...

Page 182: ...ith Parity EOM C4 03H 0dH 04H 03H 4DH 65H With Parity EOM 83H 0DH 24H With Parity EOM C5 03H 0dH 05H 03H 4DH 65H With Parity EOM 83H 0DH 45H With Parity EOM The NCR 7870 response to the host request 0...

Page 183: ...Host Reset of Tallies The host terminal can reset the tally counts using the Long Format OCIA Short Format OCIA Single Cable Scanner Scale OCIA parity bits EOM bits or BCC bytes are not shown RS 232...

Page 184: ...a but the scale is not settled To prevent the problem you can enable a scale data delay function that gives the scale more time to settle The default for this parameter is to disable the Scale Data De...

Page 185: ...tion cannot be used in any of the 2 symbol combinations and any flag digits used in a 2 symbol combination cannot be used in any of the 3 symbol combinations A mixture of 2 symbol and 3 symbol combina...

Page 186: ...a sequence similar to the power up sequence Option B Program a 2 symbol label by scanning the Hex 2 tag Result The scanner sounds two beeps followed by a 1 second pause After the pause the scanner bee...

Page 187: ...ymbol label A long loud tone error tone indicates that the scanner s memory already has the maximum of five multi symbol label combinations 5 To program more labels repeat Options C or D until a maxim...

Page 188: ...ptional Coupon Select 1 Coupon with 128 add on optional Coupon Select 1 Markdown with 128 add on optional Coupon Select 1 Program 1 with 128 add on optional Coupon Select 1 Program 2 with 128 add on o...

Page 189: ...ermit you to set the Good Read tone by scanning just one sequence of Programming Tags Preset 0 is the default for this parameter 16086 Preset 0 Volume Tone Length 1 2 3 4 5 6 7 8 9 10 11 12 Preset 1 V...

Page 190: ...the weight data is just starting to be transmitted to the host terminal when using single cable RS 232 communications The Default tag disables this option Scan the following programming tags to enable...

Page 191: ...arameters is Programming Multi Symbol Scanning 1 Scan the Programming Mode tag 2 Scan the Hex 3 and Hex 8 tags to select this parameter 3 Scan a Hex 0 through Hex F tag to set a Coupon Select 1 parame...

Page 192: ...Parameter 1 Scan the Programming Mode tag 2 Scan the Hex 3 and Hex D tags to select this parameter 3 Scan a Hex 0 through Hex 7 tag to set a Coupon Select 2 parameter Coupon Select 2 Parameter Disable...

Page 193: ...S T U V W X Y Z _ 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F A B C D E F G H I J K L M N O 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 0 1 2 3 4 6 5 7 8 9 20 21 22 23 24 25 26 27 28 29 2A 2B...

Page 194: ...7 78 Chapter 7 Programming...

Page 195: ...ms are signaled by a series of tones Voice Messages if available and Status Indicator light flashing Scale operational problems are signaled by an error code displayed on the NCR 7825 Remote Display o...

Page 196: ...munication is IBM 468x and scanner is off line Host terminal has sent a disable scanner command 1 Verify the IBM terminal is off 2 Verify the IBM terminal is recognizing the 7870 3 Verify the Interfac...

Page 197: ...Reset Scale Zero button 4 Power down up unit 5 If error code persists have unit repaired Error code 4 displays Possible scale error 1 Press Scale Zero button and retry 2 If error code persists have u...

Page 198: ...ital Board Power unit OFF and then ON Scan the Diagnostic Mode tag Scan Hex 4 and Hex A tags Firmware version should appear in display Version must be 497 0301951 or higher to have Voice Messaging fea...

Page 199: ...8 6 Chapter 8 Troubleshooting...

Page 200: ...ming parameters and the specific tags for each one Most of the worksheets contain arrows that guide you through the proper sequence The bottom half of each worksheet provides a place for you to write...

Page 201: ...s Program Entry Some host terminals can corrupt your program if they are running and are connected to the 7870 while a program is being entered Either turn the host terminal off or disconnect all inte...

Page 202: ...ault No Default Timers Lockout Time Restart Lockout Timer Active Time 900 milliseconds Off 15 seconds Bar Codes 1 UPC EAN Version D Extend UPC A to EAN 13 Extend UPC E to UPC A Periodic Codes Periodic...

Page 203: ...Identifiers Identifier Type Common Byte 1 Common Byte 2 Bar Code Type Common Byte Unique Identifier Version Number UPC D Default Prefix 5D 42 No Default See Chapter 7 See Chapter 7 Not Included RS 232...

Page 204: ...Delay Determined by Model Normal Mode No Beep Scale Parameters Model Number 9 995 kg 13 995 kg IBM Address No Default No Default Address 6E set by selecting IBM 468x on Communications Protocol Worksh...

Page 205: ...munications Protocol Protocol Your Program 14391 OCIA NCR Long IBM Slot Scanner OCIA Non NCR Dual Cable OCIA Single Cable RS 232 Casio Dual Cable OCIA NCR Dual Cable IBM Hand Held Bar Code Reader 0 OC...

Page 206: ...When entering Tone Length the adjustment can be incremented upward by scanning the Hex C tag Each time you scan the Hex C tag the tone length increases one unit Scan the End tag or a valid Hex tag to...

Page 207: ...tart Lockout Timer 0 1 Off On Active Time Minutes 0 1 2 3 0 15 30 60 No Time out Always Active Note NCR suggests that you do not set the Active Time parameter to 0 Leaving the laser light on all the t...

Page 208: ...0 1 Disable Enable Periodical Codes 0 1 Disable Enable Periodical Code Extension 0 1 2 Digit Only 5 Digit Only 2 2 Digit 5 Digit Send Data 0 1 Data As Decoded Periodical Code Data Only 2 2CF Hex If P...

Page 209: ...Disable 0 Check Digit Present D Enable 1 Disable 0 Transmit Check Digit E Enable 1 Disable 0 Enable 2 F 1 Default 8 Enable 1 Disable 0 F Allow Single Character Tags Your Program A Code 39 Bar Codes 2...

Page 210: ...ue 1 Characters Minimum 0 3 0 9 Character 1 Character 2 0 8 Default Value 2 Characters Minimum 0 3 0 9 Character 1 Character 2 1 6 Default Check Digit Present 0 1 Disable Enable Transmit Check Digit 0...

Page 211: ...ming Worksheets 1 7 BAR CODES 4 A B C Code 128 0 1 Disable Enable Minimum Data Characters Allowed 1 2 3 4 5 UCC 128 0 1 Disable Enable Your Program A B 1 7 Code 128 Minimum Data Characters Allowed UCC...

Page 212: ...mmon Byte 1 1 Common Byte 2 2 Both Common Bytes 3 LABEL IDENTIFIERS 1 6 D Bar Code Type 0 UPC A 1 UPC D 2 UPC E 3 EAN 8 4 EAN 13 5 Code 39 6 Code 128 Interleaved 2 of 5 7 Unique Identifier Default Var...

Page 213: ...200 Parity 0 Odd 1 Even 4 None Stop Bits And Character Length 0 1 Stop Bit 7 Bit Character 1 1 Stop Bit 8 Bit Character 2 2 Stop Bits 7 Bit Character 3 2 Stop Bits 8 Bit Character Handshake 0 RTS Low...

Page 214: ...Off Check Digit 0 Disable UPC A Disable EAN 8 Disable EAN 13 Disable UPC E 1 Enable UPC A Enable EAN 8 Enable EAN 13 Disable UPC E 2 Disable UPC A Disable EAN 8 Disable EAN 13 Enable UPC E 3 Enable UP...

Page 215: ...g Worksheets 2 2 RS 232 PREFIX BYTE A B Prefix Byte 0 Disable 1 Enable ASCII Code 0 7 Hex Character ASCII Code Chart 0 F Hex Character ASCII Code Chart 0 2 Default 2 2 Your Program RS 232 Prefix Byte...

Page 216: ...Enable 1 B ASCII Code 0 7 ASCII Code Chart Hex Character 0 F ASCII Code Chart Hex Character Default 0 3 Your Program A Terminator Byte B Code ASCII RS 232 Terminator Byte 2 3 NOTE On a 7870 scale unit...

Page 217: ...0 No Delay 1 10ms Delay 2 50ms Delay Scanner or Scanner Scale Format 4 Scanner Only 5 Scanner Scale Normal or Eavesdrop Mode 6 Normal Mode 7 Eavesdrop Mode 2 4 Your Program RS 232 Communications Opti...

Page 218: ...our Program Scale Parameters 11812 Model Number IBM Address 10 kg 13 995 kg 3 0 SCALE PARAMETERS Model Number 3 Scanner Scale 4 Scanner Only IBM Address 5 Address 6A 6 Address 6B 7 Address 6E 10 kg 13...

Page 219: ...ce Display IBM Rexmit Control 7 3 Times 8 Forever OCIA Blank Display in Price Mode 9 Disable A Enable Enable Disable Voice Messages D Toggle Default Enabled IBM Tag Data Format E Hex F ASCII Miscellan...

Page 220: ...T U V W X Y Z _ 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F A B C D E F G H I J K L M N O 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 0 1 2 3 4 6 5 7 8 9 20 21 22 23 24 25 26 27 28 29 2A 2B 2C...

Page 221: ...A 22 Appendix A Programming Worksheets...

Page 222: ...3 25 Interface NEC 3 28 Interface SASI 3 29 Remote Display 3 22 Calibration Displaying audit trail 5 2 General 5 1 Procedures Accessing the Calibration Switch 5 4 Connecting the Field Service Calibrat...

Page 223: ...Requirements 3 7 Extreme Operating Range 3 7 Operating Range 3 7 Storage Range 3 8 Transit Range 3 8 Exercising the Scale 5 3 F Fault Identification 8 1 Field Service Calibration Display 5 7 G Good Re...

Page 224: ...7 25 7 27 Bar Codes 1 7 22 7 24 Bar Codes 3 7 28 7 30 Bar Codes 4 7 31 7 32 Communications Protocol 7 17 Good Read Tone 7 18 7 19 Label Identifiers 7 33 7 38 Miscellaneous Parameters 7 55 7 58 RS 232...

Page 225: ...10 Slot Scanner Window Description 2 9 Securing the Calibration Switch 5 16 5 17 5 16 5 17 Site Preparation 3 1 3 20 Cable Lengths and Hole Diameters See Cables Checkstand Power and Wiring Considerati...

Page 226: ...inless Steel 2 12 Maintenance 6 11 Troubleshooting 8 1 8 5 Fault Identification 8 1 Scale 8 3 Scanner 8 2 Voice Messages 8 5 V Verifying Calibration 5 11 5 15 Voice Messages 6 3 Troubleshooting 8 5 W...

Page 227: ...comments use space below or back of form as necessary If we may contact you concerning your comments please provide the following BST0 2121 Issue G Fold Cut POSTAGE WILL BE PAID BY ADDRESSEE Cut BUSIN...

Page 228: ...BST0 2121 90 Nov 1999 Printed on recycled paper...

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