BA71 / BA72 LCD TFT 10.4" Flat Screen LCD TFT 12.
Herausgegeben von/Published by Wincor Nixdorf GmbH & Co. KG D-33094 Paderborn Bestell-Nr./Order No.
BA71 / BA72 LCD TFT 10.4" Flat Screen / LCD TFT 12.
MS-DOS®, Microsoft®, Windows 3.1 ®, Windows 95/98® and Windows NT® are registered trademarks of Microsoft Corporation. OS/2® is a registered trademark of IBM Corporation. BEETLE® is a registered trademark of the Wincor Nixdorf GmbH & Co. KG. Copyright © Wincor Nixdorf GmbH & Co. KG, 2001 The reproduction, transmission or use of this document or its contents is not permitted without express authority. Offenders will be liable for damages.
Contents Introduction ............................................................................................... 1 From Point-of-Sale to Point-of-Service................................................... 1 Advantages at a Glance.............................................................................. 2 Unpacking and checking the Delivery Unit ................................................. 3 About this Manual.......................................................................................
Installing and Securing the Screen into Place .....................................23 Installing the BA71 / BA72 into Place (Table Top Version).......................23 Securing the screens into Place (Tubular Stand Version) ........................24 Adjustable Screen Angle ...........................................................................25 Ergonomic Terminal Workplace ................................................................26 Installation .................................................
Technical Data ........................................................................................ 47 Touch Screen (optional)............................................................................ 47 LCD Screen............................................................................................... 48 BA71.......................................................................................................... 49 BA72...........................................................................
Introduction From Point-of-Sale to Point-of-Service “The customer is king”, a motto that seems so simple and yet it demands a forever increasing supply of goods and services, both quantitatively and qualitatively. More customer service and more customer information have transformed the point-of-sale to a point-of-service, as business transactions are becoming more complex and there are growing demands on shop assistants and personnel working on the cash till.
Introduction The low-energy, flickerfree and radiation-free colour monitor of the BA71 / BA72 is an Active-Matrix-Display in TFT-technology (Thin Film Transistor). Therefore, it is especially suited for multimedia applications as it offers brilliant colour representation, a better contrast ratio and a high display speed. The screens can be installed directly on the cashier’s desk or fastened to a tubular stand. Furthermore, they can also be set up on the central unit of a modular BEETLE system.
Delivery Unit Unpacking and checking the Delivery Unit Unpack the parts and check to see whether the delivery matches the information on the delivery note. The delivery comprises of the respective screen module. Controllers and data cables, necessary for operation, can be ordered separately. If damage has occurred during shipping or if the package contents do not match the delivery note, promptly inform your Wincor Nixdorf sales outlet.
BA71 and BA72 Components Screen Module The screen module represents the main unit of the BA71 / BA72. It comprises of a TFT-LCD colour screen, the TFT-interface and an inverter that generates the voltage for backlighting the screen. As an option the screens are available with Touch Screen and a loudspeaker included. Behind the cover on the back of the BA71 / BA72 you connect the cable. Remove the cable cover by pushing it in the direction of arrow (see picture) and then taking it off upwards.
LCD Controller “Stretching” is only possible when a separate TFT conroller is used. So, operating the BA71 / BA72 with the integrated TFT controller at the GXm CPU, “stretching” is not possible. Here you will see a black margin around the centered picture. If the display element is damaged and the liquid crystal solution leaks out onto your hands or clothing, please wash your hands or clothing immediately under running water for at least 15 minutes, using soap or alcohol.
Screen Module /TFT Controller TFT Controller for BA71 and BA72 Screen Module /TFT Controller The TFT-controller used for BA71 / BA72 is identical with the one used for the SNIkey terminal. It is a plug-in-controller with a PCI-interface. There are two connections for r r a 50-pin MDR connector with integrated COM5 interface a 9-pin DSUB female (for COM6) COM5 and COM6 are only ready for operation when the optional COM board is used.
Screen Module /TFT Controller 6 1 9 5 2 50 1 Panel of TFT controller COM5/ COM6 1 4 Speaker connector BA71 / BA72 connector COM6 incl.
Capacative Touch Screen (Option) General The TFT Touch Screen works according to the principle of a change in analog capacitance. It has a glass screen with a transparent, thin-film overlay on the surface. This is fully sealed and protected by a further layer of clear glass. Electrodes on the edges of the screen provide a uniform low-voltage field. As soon as you touch the screen with your finger the contact point is “recognized” by the change in capacitance.
Touch Screen Anti Reflective Etched Surface and protection ClearTek Glass Overcoat Conductive Coating Protective Noise Shield The programming interface of the screen is identical to the mouse interface. Touch Screen Touch Screen and Sleep Mode Using the Touch Screen with a BEETLE Pentium CPU, an entry via touch during sleep mode may lead to a faulty input. During sleep mode nothing can be read from the LCD flat screen.
Touch Screen How to Operate The Touch Screen responds to the slightest contact, therefore you do not have to apply much pressure when working with the screen. This not only saves time, but is also kind to your joints! Touching the touch glass has the same effect as clicking the left mouse button. You need only apply a little pressure with the fingertip. In this capacitive process only fingertip contact is recognized. The screen does not react in any way if touched, for example, with a pencil or a glove.
COM Board COM Board for Touch Screen COM Board The COM Board is an additional board with an ISA bus interface that has 2 or 4 COM interfaces (COM5, 6, 7, 8). The COM board is identical with the corresponding board of the SNIkey system. COM5 and COM6 are linked to the BA71 controller via a plug connector. COM5 is a reduced COM interface for RxD and TxD signals and is intended for the use of the (optional) touch function. As an option the COM board can be equipped with a COM7 and a COM8 interface.
COM Board COM Interface Interrupts COM5 COM6 COM7 COM7-8 COM6-8 Interrupt IRQ9 I9 - - - I11 IR9 IRQ10 I10 - - - I12 IR10 IRQ11 I5 - I4 I8 I13 IR11 IRQ12 I1 - - - I6 IR12 IRQ15 I3 I2 - - I14 IR15 For the default setting the jumper I1, I2, I8, IR11, IR12 and IR15 are active (closed). The interrupts IRQ9 and IRQ10 are added for PC application only. For a correct reproduction of the interrupt signals it is necessary that the jumper IR9 to IR15 are not activated.
COM Board Assignment of COM port addresses and interrupts (installation details) Ensure that there is no conflict of hardware port addresses or interrupt requests (IRQs) used by your system and the AT COM Board! Essentially the AT COM Board has been designed to be configurable for a non-shared IRQ9, IRQ10, IRQ11, IRQ12, or IRQ15 for COM5 and a shared IRQ9, IRQ10, IRQ11, IRQ12, or IRQ15 for COM6,7,8 and even COM5. The interrupt requests have to be enabled explicitly by jumpers on the controller (pls.
COM Board IRQ12, most likely conflict Mouse Port or PS/2 Mouse These types of mice are supported by Windows NT through the I8042PRT.SYS driver. The mouse usually has a (small) cylindric 6 pin connector. It seems that these types of mice mostly will use IRQ12. Some systems allow to disable the mouse port in the BIOS Setup.
COM Board The AT COM Board manual numbers the COM ports from 5 to 8. The origin of this numbering is from the BEETLE, which has COM1 to COM4 on the motherboard. It is recommended for consistency, that you use this numbering also, regardless whether you have e.g. a BEETLE (with COM ports 1,...,4) or a PC (with e.g. only COM1 and 2). To provide for a numbering according to that, the following procedure is recommendable: 1.
COM Board be impossible by hardware reasons! The problem is, that in such a case on the AT bus two different hardware instances would be fighting for the same IRQ! Refer to the technical information about your system for the details you need! If you configured COM ports to share a common interrupt and ‘Permit Share’ is not set to 1, you could use all COM ports but only one at a time. like (only one at a time) - open COM n - use COM n - close COM n - open COM n+1 - use COM n+1 - close COM n+1 etc.
COM Board Using shared interrupts for COM ports under Windows 95 Under Windows 95, sharing COM ports doesn’t require special provisions other than correctly specifying the resources used in the Device Manager. However, in addition to avoid port address conflicts, you must ensure that no two different pieces of hardware on the AT bus are fighting for the same IRQ! Using COM ports under Windows 3.x Windows 3.x doesn’t allow interrupt sharing! Windows 3.
COM Board Interrupt Jumper IO Jumper IO 1 IO 3 I9 I 1 I 16 I8 Interrupt Request IR 9 IR11 IR15 IR10 IR12 COM 5 / COM 6 21 COM7 2 1 COM8 Board layout COM board GB - 18
TFT Adapter TFT Adapter TFT Adapter In the case of the BEETLEwith GXm CPU the TFT adapter can be connected with GXm CPU without TFT controller and without COM board. For the connecting process the TFT adapter, a submodule of the GXm CPU, is necessary. The optimum touch function is to be realized internally via the COM2 interface. When applicating the touch function the COM2 interface (D-sub connector on the motherboard) cannot be used.
Touch Screen Resistive Touch Screen (Option) Touch Screen General The resistive TFT Touch Screen is constructed of a hard-coated polyester topsheet that is overlaid on a conductively-coated glass layer. Voltage is applied to the topsheet. As the user touches the screen, the topsheet compresses into contact with the glass layer, and current flows to the four corners in proportion to the distance from the edge. The controller then calculates the position of the finger or stylus, based on the current flow.
Touch Screen Hard-coated polyester topsheet Adhesive Glass substrate with spacer dots How to Operate Touching the touch screen has the same effect as clicking the left mouse button. You only need to apply a little pressure with the fingertip. In this resistive process not only fingertip contact is recognized. The screen does react in any way if touched, for example, with a stylus. The recommended material for a stylus is polyacetal. The stylus should have a minimum spherical radius of 0.
Touch Screen GB - 22
Installing and Securing the Screen into Place The screens can be installed either with or without attached operating elements, as a table top terminal or on a tubular stand. Securing into Place Installing the BA71 / BA72 into Place (Table Top Version) Remove the footed stand and screen element from the cardboard packaging. Tilt the screen backwards. Turn the fastening screw on the screen with a crosstip screwdriver until the connecting part is loosened. Then insert it into the footed stand.
Tubular Stand Version Tubular Stand Version Now fasten the screw on the footed stand into place again using the crosstip screwdriver. Ensure that the screw is in the correct position. Securing the screens into Place (Tubular Stand Version) The system has been designed for securing into place on a tubular stand, with a tube with 35.2 ± 0.2mm inner diameter. The tube length can be varied. The tube on which the system is secured is not included in the scope of delivery.
Adjustable Screen Angle Adjustable Screen Angle Adjustable Screen Angle The BA71 / BA72 is fitted with a joint on the rear. You can optimize the angle of the screen depending on the viewing and lighting conditions. loose tight Use a screwdriver to set the twisting force of the BA71 / BA72 on the adjusting nut. 95 0 The angle of the screen can be adjusted from a horizontal position to a vertical position of max. 95°, without any tools.
Ergonomic Terminal Workplace Ergonomic Terminal Workplace Ergonomic Terminal Workplace Please observe the following when setting up your terminal workplace: Avoid direct glaring and reflective glaring. Install the device with a viewing direction that is parallel to the windows. Avoid reflective glaring caused by electric light sources.
Installation Installing the Controller in the BEETLE /L First ensure that the controller is switched off and the mains supply plug has been pulled out. Then loosen the four screws on the housing and remove the housing. Take care in doing so that you do not tilt or jam the housing in any way. If a VGA sandwich module or a VGA controller is installed, remove this board. Mind the measures of electrostatically endangered components.
Metal tracks Speaker connector In order to be able to install the TFT controller, you must first remove the metal panel that covers the free slots by loosening the screw. Set the jumper for the I/O addresses and the interrupt requests on the COM board. It is strictly necessary to avoid conflicts, so please inform yourself of already existing settings. Plug the TFT COM board into the corresponding AT terminal and plug the TFT controller into the PCI terminal.
Installation Connecting the Speaker Cable Connecting the Speaker Cable Connecting the Speaker Cable Remove the speaker cable from the BEETLE-CPU by simply unplugging the connector. The BEETLE /L speaker is then inactive. The 4-pin plug connector is next to the RAM module. With the help of the TFT speaker cable delivered with the system, connect the 4-pin-plug connector of the TFT controller with the 4-pin plug connector of the BEETLE-CPU.
Connecting BA71/BA72 to the BEETLE /L Installation TFT controller COM6 LAN KYBD CASHDR COM4* DC24 ASYN COM3* COM2* LPT1 COM1 LAN/ASYN Back of the BEETLE /L Connect the 50-pin data cable of the BA71/BA72 to the TFT controller. Under the small cover on the back of the BA71/BA72 is the socket for the cable. You open the cover by pushing the catch until it is unlatched. Push the cover to the bottom.
Installation Connecting the BA71/BA72 to the BEETLE /20 Connecting the BA71/BA72 to the BEETLE /20 The hardware installation is carried out according to the installation of the BA71/BA72 to the BEETLE /L. When installing the TFT controller, you have optionally two further COM interfaces (COM7 and COM8) at your disposal.
Connecting the BA71/BA72 to the PC Installation Connecting the BA71/BA72 to the PC Connecting the BA71/BA72 to the PC First ensure that the controller is switched off and the mains supply plug has been pulled out. Then loosen the housing of the PC and unscrew the panel. Take care in doing so that you do not tilt or jam the housing in any way. For the connection to a PC please refer to the documentation delivered with your PC.
Installation Connecting the BA71/BA72 to the BEETLE/M The Jumper layout of the GXm board Connecting the BA71/BA72 to the BEETLE/M KYBD COM4 Super I/O NV-RAM NV COM3 PCI / ISA Interrupt Frequency USB - + Battery S3 (S1, S2) SNIkey COM2 COM1 GXm Loudspeaker (4-pin) SDRAM-DIMMs The jumper settings of the S1, S2 and S3 slots are decisive for the touch function.
Connecting the BA71/BA72 to the BEETLE/M Installation Touch function (COM2 disable)) BA71/BA72 When using a TFT controller S2 S1 S3 COM2 function (touch disable) BA71/BA72 Default setting S2 S1 When using a TFT adapter S3 After having set the necessary settings on S1, S2 and S3 in the case of using the touch function, continue according the following instructions.
Installation Connecting the BA71/BA72 to the BEETLE/M Connecting the cable The data cable is to be connected with the 50-pin connector of the TFT adapter. Take care that the thickening of the cable (Ferrit) is principally positioned on the side of the TFT adapter. Battery COM7 COM8 ON 110-120 V / 2 A max 200-240 V / 1 A max DC24V KYBD 1 COM4 2 LPT1 COM3 Back of BEETLE /M system USB COM2 COM1 LAN/ASYN TFT-Adapter The connecting socket of the LCD-module is situated below the cover.
TFT adapter Installation Now plug in the cable until it snaps in (see illustration). When removing the cable press on the connector release. Installing a TFT adapter Never open the BEETLE /M when the circuit is switched on. Plug in the TFT adapter on the GXm-CPU module via the sub module as shown in the illustration.
Installation Inserting the Cable Inserting the Cable Inserting the Cable The cable cover is located in the base plate. PULL Lift the cable cover . Pull the cable cover forward in the direction of the arrow , and then remove it from the guide rail. PULL PULL Insert the cable of the keyboard. The 50-pin BA71/BA72 cable will be carried in a curve from the small cover of the screen module to the cable cover. Replace the cable cover in the guide rail. Pay attention to the openings.
Releasing the Cable Connection Installation Releasing the Cable Connection Releasing the Cable Connection Never remove a cable from a connector socket by simply pulling on the cable. Always remove the cable by the connector housing. Please follow the instructions below when removing cables: r r r r Turn off all switches to the mains and electrical equipment. Remove all mains cables from the shockproof sockets installed in the building.
Software Installation The software installation refers to the installation of corresponding display drivers; the installation of the touch screen comprises the allocation of resources for the COM interfaces, too. For this, corresponding diskettes are available. The installation of display drivers is normally done after a VGA card is replaced with the TFT controller.
Touch Screen Software Interfaces Touch Screen Touch Screen Touching the screen corresponds to press the left mouse key. The touch screen programming interface is identical to that of the mouse interface. For example, in the operating system DOS the driver provides by the interrupt INT33H the corresponding mouse coordinates in a 640 x 200 coordinate system. TFT LCD Flat Screen The TFT LCD flat screen is SVGA-compatible. The LCD controller of the TFT is a Chips & Technologies, 65550 B module.
Touch Screen Automated Logic Diagram (ALD) and Pin Assignments Bildschirmm Screen module Inverter for two Backlights 7 TFT-Interface 4 TFT-Display 31 2 Touch Screen (Option) Touch Screen Controller (Option) Loudspeaker (Option) 50 Signals: TFT-LCD, COM5, COM6, Loudspeaker (Option) TFT- Controller (PCI Interface) COM Board (ISA Interface) TFT-LCD/ COM5*/Buzzer COM8* FREE ISA-Slot COM7* COM6 1 BEETLE-CPU Pentium KYBD CASHDR fixed key legend COM4 COM3 COM2 COM1 free key legend but
Touch Screen Automated Logic Diagram Interface Automated Logic Diagram The LCD interface is connected to the TFT controller via a 50-pin cable. The inverter, LCD display, touch screen controller and beeper are connected to this interface in the TFT screen module.
Pin Assignments Controller Pin Assignments Pin Assignments Controller BA71/BA72 Connectors of the Controller and the Interface PIN # signal PIN # signal 1 P12VLCD 2 P12VLCD 3 RxD1 4 TxD1 5 HUOUT 6 GND 7 BLUE0 8 GND 9 BLUE1 10 GND 11 BLUE2 12 GND 13 BLUE3 14 GND 15 BLUE4 16 GND 17 BLUE5 18 GND 19 GREEN0 20 GND 21 GREEN1 22 GND 23 GREEN2 24 GND 25 GREEN3 26 GND 27 GREEN4 28 GND 29 GREEN5 30 GND 31 RED0 32 GND 33 RED1 34 GND 35 RED2
Controller Pin Assignments COM 6 Interface of the Controller PIN # signal 1 +12V 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 +5V Internal Speaker Connector for Controller and BEETLE-CPU PIN # signal 1 n.c. 2 n.c. 3 n.c. 4 HUIN COM7 and COM8 Interfaces of the Controllers for the BEETLE /XL (Option) These plug connectors are available only for the BEETLE /XL.
Pin Assignments Controller Internal Connecting Socket PIN# COM7 COM8 1 P5V P5V 2 GND GND 3 DCD DCD 4 GND GND 5 CTS CTS 6 DTR DTR 7 RTS RTS 8 TxD TxD 9 DSR DSR 10 RxD RxD 11 RI RI 12 GND GND 13 P12V P12V 14 GND GND GB - 45
Controller Pin Assignments External Connecting Socket GB - 46 PIN# with power supply w/o power supply 1 +12V DCD 2 RxD RxD 3 TxD TxD 4 DTR DTR 5 GND GND 6 DSR DSR 7 RTS RTS 8 CTS CTS 9 +5V RI
Technical Data The following operating conditions are valid for a BA71/BA72 TFT that is fitted with all the available modules (LCD flat screen, touch screen): Climate class IEC 721 3/3 Class 3K3 Operating temperature +5° C - + 40° C Humidity 5% - 85% Absolute humidity 1g/m³ - 25g/m³ Condensation is not permitted Touch Screen (optional) Resolutions Horizontal 99 pixel Vertical 99 pixel Power supply 5V LCD technology Analog capacitive / analog resistive Surface Glass protective layer, anti-ref
LCD Screen Technical Data LCD Screen Technical Data LCD Screen Frequencies Solutions Horizontal (KHz) 29 Vertical (Hz) 47 Horizontal 800 pixel (SVGA) Vertical 600 lines (SVGA) Colour RGB 16, 256, 64k Pixel Format BA71: 0.27 mm x 0.27 mm BA72: 0.30 mm x 0.30 mm Power Supply 5V LCD Technology TFT, 18 Bit Brightness BA71: approx. 160 cd BA72: approx.
Technical Data SNIkey TFT BA71 SNIkey TFT Dimensions Weight Screen size 10.4" (26.4 cm) Active Screen (horizontal x vertical) 211 mm x 158 mm Cable length 1.8 m Dimension Display Housing without foot. Stand/Hinge (W x H X D) 280 x 220 x 50 mm Dimension Display Housing with foot. Stand/Hinge (W x H X D) 280 x 260 x 50 mm Footed Stand (W x D) 280 x 190 mm incl. Footed Stand approx. 4.1 kg Footed Stand approx. 1.
SNIkey TFT Technical Data BA72 Dimensions Weight GB - 50 Screen size 12.1" (30,7 cm) Active screen size (horizontal x vertical) 246 mm x 185 mm Cable length 1.8 m Dimension Display Housing without foot. Stand/Hinge (W x H X D) 315 x 248 x 53 mm Dimension Display Housing with foot. Stand/Hinge (W x H X D) 315 x 292 x 200 mm Footed Stand (W x D) 280 x 190 mm incl. Footed Stand approx. 4.9 kg Footed Stand approx. 1.
Technical Data Current Consumption Current Consumption Current Consumption TFT Controller 450 mA + 5V 50 mA +12V 50 mA -12V Screen Module Consisting of an LCD display, touch screen incl. controller, inverter, interface. Please check whether the system offers enough power to supply the screen module. 10.4" screen 12.1" screen 750 mA 800 mA + 12V + 12V COM6/7/8 max. 900 mA + 12V max. 300 mA + 5V Power Consumption TFT Controller: approx. 2.5 W TFT COM Board max.
TFT-Controller Technical Data TFT Controller TFT-Controller GB - 52 Interface PCI, 32 Bit Mode SVGA Resolution 800 x 600 x 256 colours, 64k see chapter 2 TFT LCD flat screen Image repeat memory 1 MB (256k x 32) Screen memory Textmode Pagemode Linearmode B800H- BFFFH A000H- AFFFH according PCI BIOS 40 kB, Address C000H-C9FFFH Connections 1. 50-pin MDR connector for LCD interface, touch screen and loudspeaker 2.
Technical Data COM-Board COM Board COM-Board Controller System interface ISA, 8 MHz I/O-addresses for COM interfaces 3 address records 2E0, 330, 320 that can be set by jumper Interrupts for COM interfaces IRQ11, IRQ12, IRQ15 can be set by jumper, IRQ9 and IRQ10 are for PC applications COM5 reduced COM interface, internal connection to the TFT controller (only TxD, RxD) COM6 RS232 with power supply 5V/12V internal connection to the TFT controller COM7 and COM8 (optional) Connection for COM7/8
Manufacturer’s Declaration and Approval General Authorization This device fulfills the requirements of the EEC standard 89/336/EEC “Electromagnetic Compatibility”. Therefore, you will find the CE mark on the device or packaging. FCC-Class A Declaration This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
Manufacturer’s Certificate and Notes User Information Tested Safety geprüfte Sicherheit The BA71/BA72 has been awarded the GS symbol for “Geprüfte Sicherheit” (tested safety). BA71/BA72 fulfills the requirements for ergonomy according to ZH1/618:1980-10. Additionally, the BA71/BA72 has also been awarded the cUL- and ULsymbol.
Safety Instructions Manufacturer’s Certificate and Notes Safety Instructions This device conforms to the corresponding safety regulations for information technology devices, including electronic office machines for use in the office environment. r r r r r r r r GB - 56 If the device is moved from a cold environment to a warmer room where it is to be operated, condensation could occur. The device must be completely dry before being put into operation.
Manufacturer’s Certificate and Notes Instructions for Maintenance Instructions for Maintenance Manufacturer’s Certificate and Notes Instructions for Maintenance Clean your BA71/BA72 TFT regularly with an appropriate surface cleaning product. Make sure that the device is switched off, connector cables are unplugged and that no moisture is allowed to get into the inside of the device. Please observe the maintenance and cleaning instructions for each of the BA71/72 TFT components.
The BA71/BA72 is manufactured without the use of CFCs and CCHS and is produced mainly from reusable components and materials. The processed plastics can, for the most part, be recycled. Even the precious metals can be recovered, thus saving energy and costly raw materials. Please do not stick labels onto plastic case parts. This would help us to reuse components and material. You can protect our environment by only switching on your equipment when it is actually needed.
Appendix Abbreviation Index ASCII AT BIOS CFL COM CPU CRT DSTN H HW ISA ISO LAN LPT LCD MDR POS RAM SMD STN SVGA SW TFT UART ZE American Standard Code for Information Interchange Advanced Technology Basic Input Output System Cold cathode Fluorescent Lamp Communication Port Central Processing Unit Cathode Ray Tube Double Super Twisted Nematic, LCD Technology Hexadecimal Value Hardware Industrial Standard Architecture International Standards Organisation Local Area Network Line Printer Liquid Crystal Display