XYAA6338 Service Manual v.TABLE OF CONTENTS1. OVERVIEW ......................................1-11.1 INTRODUCTION ................................. 1-11.2 OVERALL VIEW OF THE PRINTER .... 1-21.3 BLOCK DIAGRAM ............................... 1-31.4 INTERCONNECTIONS ........................ 1-41.5 POWER SUPPLYCHARACTERISTICS ........................... 1-51.6 LAYOUT OF THE DRAWER AND .............DISPLAY CONNECTORS .................... 1-61.7 INTERFACES ....................................... 1-71.7.1 RS-232 Serial InterfaceConnector Layout ............................ 1-71.7.2 IEE 1284 Parallel InterfaceConnector Layout ............................ 1-82. INSTALLATION................................2-12.1 UNPACKING THE PRINTER ............... 2-12.2 CHECKING THE PACKAGINGCONTENTS ......................................... 2-22.3 REMOVING THE BLOCKAGES USEDFOR TRANSPORTATION .................... 2-32.4 INSERTING THE EXTERNALTRANSFORMER ................................. 2-42.5 CONNECTIONS .................................. 2-53. FUNCTIONAL CHECKS ..................3-13.1 LEDS .................................................... 3-13.2 CONSOLE INDICATIONS .................... 3-23.3 SLIP TEST ........................................... 3-44. SETUP AND ADJUSTMENTS .........4-14.1 OPERATOR TEST ............................... 4-24.2 SETUP FROM THE CONSOLE ........... 4-24.2.1 Accessing this Setup Mode ............. 4-24.2.2 Selectable Parameters .................... 4-34.2.3 Selecting the Parameters ................ 4-44.2.4 SET-UP Diagram(Olivetti Serial Port Emulation) ........ 4-54.2.5 SET-UP Diagram(EPSON Serial Port Emulation) ...... 4-64.2.6 SET-UP Diagram(EPSON Parallel Port Emulation) .... 4-75. DISASSEMBLY/REASSEMBLYPROCEDURES ................................5-15.1 OVERVIEW .......................................... 5-15.2 REMOVING THE CASE ....................... 5-15.3 LOCATING THE COMPONENTSON THE ELECTRONIC BOARD .......... 5-35.3.1 Main Board ........................................ 5-35.3.2 MICR Board ....................................... 5-55.4 REMOVING THE PRINT ASSEMBLY .. 5-75.5 REMOVING THE PRINT HEAD ........... 5-85.8 REMOVING THE PLATEN ................... 5-95.7 REMOVING THECARRIAGE MOTOR .......................... 5-105.8 REMOVING THE RIBBONMOVEMENT PIN ............................... 5-115.9 REMOVING THE DOCUMENT .................DETECTION PHOTOSENSORS ....... 5-125.10 REMOVING THE SLIP DETECTION ........PHOTOSENSORS ............................. 5-135.11 REMOVING THE LINEFEED MOTOR ................................... 5-145.11.1 Basic Printer Version ...................... 5-145.11.2 MICR Version .................................. 5-145.12 REMOVING THE BOARDS ............... 5-155.12.1 Main Board ..................................... 5-155.12.3 Micr Board ..................................... 5-155.12.2 Drawer and Display Card ............... 5-156. ADJUSTMENTS ..............................6-16.1 ADJUSTING THE PLATEN ONTHE BASIC STRUCTURE ................... 6-16.2 ADJUSTING THE PARALLELISM ANDPRINT HEAD-PLATEN DISTANCE ...... 6-26.3 ADJUSTING THE TENSION OF THECARRIAGE TRANSPORT BELT .......... 6-26.4 MOUNTING THE SNAP RINGSON THE CARRIAGETRANSPORT ASSEMBLY ................... 6-26.5 ADJUSTING THE CLEARANCEOF THE DOCUMENTINSERTION SLOT ............................... 6-36.6 ADJUSTING THE PAPER DETECTIONPHOTOSENSOR ................................. 6-46.7 ADJUSTMENT MENU ......................... 6-56.7.1 Photosensor Adjustments ............... 6-66.7.2 Adjusting the Carriage ..................... 6-86.7.3 MICR Adjustment .......................... 6-107. INSTALLING THE DRAWERCARD OPTION ................................7-1