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Lexmark 4227-X00 Printer User Manual

1. Paper TOF Select Sensor Sensor Interface Sensor Cable I r CN1 CN4 CN7 Auto Gap CN8 Senor Tractor 2 CN13 CN9 I Carrier Motor CN15 SUB LOGIC MAIN LOGIC BOARD CN2 CN3 BOARD CN10 Paper Feed Motor CN3 CN4 CN18 Tractor PSet H CN14 Jam Sensor RS232 RS422 CN19 H GNT Switch Ribbon Printhead Motor CN20 Power Supply Auto CN3 Gap Ribbon Cover Motor Closed Sensor ine Cord Operator on Select Sensor Sensor Card Interface Sensor CN2 Cable LT Co CN1 CN4 CN7 Auto Gap CN22 CN8 Senor Tractor 2 CN13 CN9 Carrier Motor CN15 SUB LOGIC MAIN LOGIC BOARD CN3 CN3 BOARD Paper Feed Motor CN2 Tractor PSet CN14 Jam Sensor CN19 H CN11 Ribbon Motor Printhead CN23 CN17 CN20 Carrier Power Motor Supply Cooling Fan Auto Gap CN3 Motor Ribbon Cover Line Cord Closed Sensor Operator Panel 5 20 Service Manual 4227 00 Tractor 2 Cable Connectors The Tractor 2 cable is soldered to the board at CN1 P
2. 5 4 RAPT a Bd rr 5 5 Operator Panel Connectors 5 5 Component Locations anna 5 6 Component Location Illustrations 5 7 signal dds XI RES 5 9 Connector Block Diagram 5 20 Tractor 2 Cable Connectors 5 21 Preventive Maintenance 6 1 aan see 6 1 Specified LUBNCAMS 6 1 Lubrication PONS were 6 2 Parts Catalog 7 1 How to Use This Parts Catalog 7 1 Assembly 1 Covers and Operator Panel 7 2 Assembly 2 Paper Feed 7 4 Assembly 3 i gsm 7 6 Assembly 4 Base and Electronics 7 8 Assembly 5 ASF Side Frame Covers 7 10 Assembly 6 ASF Roller Support 7 12 Assembly 7 Tractor 2 Option 7 14 e 9 1 4227 X00 Preface This manual describes the Lexmark Forms Printer 4227 100 and 4227 200 It contains maintenance procedures for service personnel and is divided into the following chapters General Information contains a general description of the printer and the maintenance approach used to repair it Special tools and test equipment are listed in this chapter as well as general environmental
3. Index Number Description 5 1 95F6901 Support Stacking 2 95F6903 Cover Front 3 95F6899 Side Frame Right 4 95F6893 Spring Kit ASF 5 95F6892 Gear and Bearing Kit ASF 6 95F6894 Screw Kit ASF 7 95F6882 Cover Right Parts Catalog 7 11 4227 X00 Assembly 6 ASF Roller Support 7 12 Service Manual 4227 00 Asm Part Index Number Description 6 1 11A3334 Support Cut Sheet with Guides 2 95F6896 Roller Feed Upper 3 65F6897 Roller Feed Lower 4 1333275 Roller Pickup Left and Right 5 1333280 Hopper Left 6 1333279 Support Paper Left 7 95F6880 Support Paper Center 8 1333277 Hopper Right 9 1333278 Support Paper Right 10 95F6881 Cover Left 11 1333161 Lever Paper Load 12 1333162 Link Paper Load 13 95F6892 Gear and Bushing Kit ASF 14 95F6893 Spring Kit ASF 15 95F6894 Screw Kit ASF 16 95F6898 Side Frame Left Parts Catalog 7 13 4227 X00 Assembly 7 Tractor 2 Option 7 14 Service Manual 4227 00 PII Description Index Number 7 1 95F6903 Cover Front 2 11A3343 Paper Table W Guides 3 11A3338 Paper Guide Tractor 4 11A6252 Tractor and Frame Assembly 5 11A6254 Tractor Kit Left and Right with Sensors 6 11A3341 Parts Packet 7 11A3284 Shaft Support 8 11A3336 Board Asm W Cable and Ferrite 9 11A3332 Cover Right 10 11A3337 Motor Par
4. 3 20 20 DB 20 20 20 20 en 9C AC eo BC 50 20 20 60 20 20 7D 20 BD en 90 eo AD OE 20 20 20 4E 20 20 SE 20 20 6 20 20 20 DE 20 20 EE 20 en OD eF 20 eo eo 20 20 AF 20 CF 20 en DF eo 3 2 Service Manual 4227 00 Interface Selection 4227 100 Serial or parallel attachment can be selected from the user menu under Interface Options If serial attachment is selected RS 232 or RS 422 can be selected with the switch that is accessible through the rear cover Serial attachment parameters are set in the Interface Options menu Operation with the Top Cover Removed After removing the top cover the printer can be operated for service purposes by positioning the cover near the main logic board and reconnecting the operator panel cable The ribbon cover must be in place on the top cover Or remove the operator panel and cable jumper the two pins of the ribbon cover sensor connector CN1 together on the back of the panel and reconnect the operator panel flex cable to the main logic board Note Printing without the top cover affects print quality and may cause paper jams since the upper feed rollers on the ribbon cover do not help restrain and feed paper Diagnostic Aids 3 3 4227 X00 Service Menu Enter the Service Menu by pressing Menu Quit during POR Release the button when the carrier strikes the left s
5. Connector Locations 5 9 4227 X00 Main Logic Board lt gt Parallel Interface Cable 4227 200 Main Logic Board CN1 Pin 1 Strobe Pin 19 Signal Gnd Pin 2 Datat Pin 20 Signal Gnd Pin 3 Data2 Pin 21 Signal Gnd Pin 4 Data3 Pin 22 Signal Gnd Pin 5 Data4 Pin 23 Signal Gnd Pin 6 Data5 Pin 24 Signal Gnd Pin 7 Data6 Pin 25 Signal Gnd Pin 8 Data7 Pin 26 Signal Gnd Pin 9 Data8 Pin 27 Signal Gnd Pin 10 Acknlg Pin 28 Signal Gnd Pin 11 Busy Pin 29 Signal Gnd Pin12 PE Pin 30 Signal Gnd Pin13 Select Pin 31 INIT Pin 14 AF Pin 32 Error Pin15 NC Pin 33 Signal Gnd Pin 16 Signal Gnd Pin 34 Pin17 Chassis Gnd Pin 35 5Vdc Pin 18 5 V de Pin 36 SE 5 10 Service Manual 4227 X00 Main Logic Board lt gt Sub Logic Board 4227 100 Main Logic Board Sub Logic Board CN3 CN2 Pin 1 Pin 38 HDTHERMO Pin 2 R7COM Pin 37 R7COM Pin 3 L4COM Pin 36 L4COM Pin 4 L1COM Pin 35 11 Pin 5 L8COM Pin 34 18 6 15 33 15 Pin 7 R1COM Pin 32 R1COM Pin 8 RACOM Pin 31 R4COM Pin 9 R3COM Pin 30 R3COM Pin 10 R8COM Pin 29 R8COM Pin 11 R6COM Pin 28 R6COM Pin 12 R9COM Pin 27 R9COM Pin 13 R2COM Pin 26 R2COM Pin 14 Pin 25 R5COM Pin 15 19 Pin 24 19 Pin 16 16 Pin 23 16 Pin17 L7COM Pin 22 L7COM Pin 18 L2COM Pin 21 12 Pin 19 1 Pin 20 L3COM Pin 20 R9 Pin 19 R9 Pin21 R3 Pin 18 Pin22 R5 17 R5 Pin23 R1 16 R1 Pin24 16
6. POST Service Check FRU Action 1 Power Disconnect the parallel or serial cable and turn power on If there is no printer activity go to the Power Failure Service Check on page 2 25 2 Operator Panel If the power supply fan turns on but no LEDs light go to the Operator Panel Service Check on page 2 19 3 Main Logic Board If the Power LED turns on but POST does not complete replace the main logic board Readjust the Bidirectional Print Adjustment on page 4 4 and check the Printhead to Platen Gap Adjustment on page 4 2 4 Printer Cable If POST completes reconnect the parallel or serial cable and turn power on again If POST now fails there is a problem with the cable or the parallel connector on the main logic board 2 24 Service Manual 4227 00 Power Failure Service Check Refer to the Voltage Ground and Continuity Readings on page 1 3 for additional information FRU Action 1 Operator Panel If the operator panel or cable is damaged or disconnected the machine is completely inoperable except for the power supply fan noise If the power LED is not on steady check the cable continuity and replace the cable or the operator panel 2 Power Supply Fuse If the printer is completely inoperable disconnect the power cables from the main logic board CN11 and the sub logic board CN1 Turn the power
7. Service Manual Lexmark Forms Printer 4227 4227 X00 e Table of Contents Start Diagnostics e Safety and Notices e Trademarks Index LEXMARK 4227 X00 servio MBDB ia sa para 3 4 Bulon TOSI uis dade der re 3 4 Factory SEINS anne 3 4 Pinhead Bank ae HR 3 4 PSet Sensor Test sasuke ve dads 3 4 IMPACT FOIE dau 3 5 Eng E choad 3 5 Test seat Pod dE ed 3 5 Ober Print T6819 me RR ders 3 5 os bbe de BEER TESS 3 6 Repair Informallons saa sais ea a e gam eara aod eas 4 1 Handling ESD Sensitive 4 1 ANUSO Le de ot Ion qr prop Ree Rat d QUU 4 2 Printhead Installation Adjustment 4 2 Printhead to Platen Gap Adjustment 4 2 Bidirectional Print Adjustment 4 4 Removal 4 6 Top Cover 4 6 Auto Gap 4 8 Auto Sheet Feeder Gears Removal 4 9 Auto Sheet Feeder Pick up Roller Removal 4 10 Belt Tension Pulley Plate Assembly Removal 4 11 Base Assembly 4 11 Caner Removal sse dux Gi 4 12 Carrier Motor Assembly Removal 4 15
8. 5 Main Logic Board If all the above items have been examined and there is still a power problem replace the main logic board Retain the old board for reinstallation if the problem is not fixed Adjust the Bidirectional Print Adjustment on page 4 4 and check the Printhead to Platen Gap Adjustment on page 4 2 2 26 Service Manual 4227 X00 Print Quality Service Check FRU Action 1 Ribbon and Shield Be sure the ribbon is not worn and feeds smoothly when the knob is turned Inspect the ribbon shield for dirt or damage 2 Ribbon Drive Be sure the ribbon drive post rotates when printing 3 Auto Gap Check the Printhead to Platen Gap Adjustment on page 4 2 If Auto Gap is off be sure the manual position setting is appropriate for the paper used Auto Gap Motor If the failure remains replace the Auto Gap Bracket Motor Bracket 4 Printhead Cables Inspect both ends of the printhead cables for proper connection 5 Carrier Belt Loosen and tighten the tension pulley plate Adjustment screws to make sure the carrier belt is tight 6 Carrier Movement With power off manually move the carrier from side to side to inspect for drag or binds 7 Bidirectional Print Check the Bidirectional Print Adjustment Adjustment on page 4 4 8 Carrier Motor The carrier motor should turn smoothly and quietly when printing 9 Paper Feed Gears Inspect
9. on page 4 6 Turn the printer so you are facing the rear of the printer Remove both tension pulley plate mounting screws 1 Manipulate the left side of the tension spring off the lug Slide the pulley plate to the right and off the carrier plate Slide the pin out of the pulley and manipulate the belt out of the tension pulley plate Base Assembly Removal 1 NO Remove the tractor assembly Remove the top cover See Top Cover Removal on page 4 6 Remove the print unit Remove the power supply Remove the main logic board Remove the tractor cable and bracket If replacing the bottom cover write the machine serial number and part number on the blank label Repair Information 4 11 4227 X00 Carrier Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Remove the printhead See Printhead Removal on page 4 33 3 Remove the carrier roller spring 4 Remove the sub logic board See Sub Logic Board Removal on page 4 38 5 Remove the ribbon drive motor assembly 1 4 12 Service Manual 4227 X00 6 Loosen the two tension pulley plate screws 2 Pull upward on both sides of the belt to move the tension pulley plate as far as possible toward the center of the printer then retighten the large screw 7 Remove the belt from the carrier motor pulley 8 Push the tension pulley toward the outside of the printer
10. Printhead Cables Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Remove the two screws on the cable retainer and disconnect the two cables These are ZIF connectors 3 Disconnect the other end of the cables from the sub logic board and pull the cables from under the ribbon motor 4 The cables are attached to the carrier plate with double faced tape Reinstallation Be sure the tension pulley plate does not interfere with the printhead cables 4 34 Service Manual 4227 X00 Ribbon Drive Motor Assembly Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Remove the sub logic board Remove the ribbon drive post cover and the ribbon drive post 1 Remove the auto gap sensor 2 from the motor bracket Disconnect ribbon motor connector CN19 from the main logic board Remove the carrier motor bearing retainer and bearing 3 from the ribbon motor bracket Remove the three screws 4 holding the ribbon drive motor bracket and remove the ribbon drive motor assembly Repair Information 4 35 4227 X00 Right Side Frame Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Remove the print unit Remove the paper select lever Remove the gear shaft support plate 2 and the two gears with their springs 3 Remove the large screw 4 holding the tension pulley plate to the side frame Remove the gear
11. Ribbon comes off becomes loose or folded or jams Ribbon feeds correctly but is noisy Check the ribbon cartridge for binds or damage Go to the Ribbon Drive Service Check on page 2 30 Diagnostic Information 2 9 4227 X00 Service Checks Auto Gap Service Check Theory of Operation The Auto Gap Motor and Gap Home Sensor automatically set the printhead gap for the thickness of paper being used by rotating the eccentric carrier shaft The printer detects maximum gap with the Gap Home Sensor and minimum gap by driving the printhead against the platen In addition to compensating for the thickness of the paper itself the printer must increase the air gap for thicker papers With Auto Gap On the following occurs POST Auto Gap resets The printer unloads paper if it is loaded to prepare to measure the travel span The auto gap motor drives the printhead against the platen to measure the total travel span Auto Gap resets again to make room for paper to be loaded The paper feeds to the print line The auto gap motor drives the printhead against the paper to measure the total travel minus the paper thickness Auto Gap resets again The printhead moves to the appropriate gap position for the installed paper The Ready LED turns on the carrier centers and the paper moves to the tearoff position 2 10 Service Manual 4227 X00 Auto Gap can be set to Off to reduce time to
12. feeder while observing the pick and feed rollers If the skew problem is in the base machine examine all feed rollers for wear Diagnostic Information 2 13 4227 X00 Carrier Drive Service Check Note When a 637 638 or 639 error is detected while printing verify that the same error is detected after removing jammed paper and checking that the ribbon guide is in place FRU Action 1 637 638 639 Carrier positioning error CA Drive Error Inspect the following Tension pulley plate Carrier Carrier belt Loosen and tighten the tension pulley plate screws to make sure the carrier belt is tight Disconnect CN9 and move the carrier manually from left to right and check for smooth movement With CN9 disconnected check for 5 to 8 ohms between pins 1 and 2 on the motor cable If the reading is incorrect replace the motor Check for motor pins shorted to the housing If you find a pin shorted to the housing replace the motor If no problems are found replace the carrier motor 2 640 The printer has stopped to protect the carrier CA Thermal Error motor from overheating Normally this will not occur until after several hours of continuous heavy use in a warm environment and only then after going through several stages of thermal slowdown Wait for the machine to cool and see if the error goes away If the machine was not being used heavily before the error occurred or if the
13. 00 2 Diagnostic Information Start Make a quick visual check for defects loose or broken parts unplugged connectors or paper jams If there is no power after turning the printer on go to the Power Failure Service Check on page 2 25 If an error indicator appears go to the Error Indication Table on page 2 2 and take the indicated action Run the Print Test on page 3 5 and refer to the Error Log on page 3 6 for details of error indication information If no error indication appears refer to the Symptom Table on page 2 4 Diagnostic Information 2 1 4227 X00 Error Indication Table The following table describes the service check entries for the printer error indication codes When an error indication changes after you have entered a service check you have intermittent problem If this occurs leave the service check and go to Symptom Table on page 2 4 Display Indication Description Action 631 Machine Check Display RAM Error Display RAM Read Write Error This error is detected only during POST Replace the operator panel 632 Machine Check System RAM Error System RAM Read Write Error Replace the main logic board and adjust the Bidirectional Print Adjustment on page 4 4 Check the Printhead to Platen Gap Adjustment on page 4 2 633 Machine Check Timer Interrupt Error Timer Interrupt Controller Error Replace the main logic board and
14. 3 Install the left end of the paper separator first then flex the right side frame slightly to get the right end installed 4 Reinstall the screw through the hole above the slider cam 4 20 Service Manual 4227 X00 Lower Pinch Roller Removal 1 Remove the ribbon cover and the ribbon 2 Remove the U shaped ground spring 1 3 Release the left and right pinch roller springs 2 4 Move the carrier to the right as far as it will go 5 Lift the left end of the lower pinch roller and move it to the left until the right end clears the carrier Be sure not to lose the right bearing 6 Remove the shaft to the right Repair Information 4 21 4227 X00 Main Logic Board Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Disconnect all cables connected to the main logic board Remove the three screws at the rear edge of the board and remove the board Remove the EPROM from the old board and install it on the new one Reinstallation After replacing the main logic board recheck the Bidirectional Print Adjustment on page 4 4 and the Printhead to Platen Gap Adjustment on page 4 2 Memory Module Removal The Memory Module is an option 1 Turn the printer Off and disconnect the power cord at the printer Remove the rear cover Remove the paper support Insert a small flat screwdriver under each end of the module and lift up gently Do not insert the screwdriver t
15. AP AERP Lexmark TF FFARR RAR ER AACS Ay BE BY BEAR BA E Mh RS IE Lexmark MAAR AP HAN AEP AES RS A TEED Rcs Ae AP MEA AIR HR E SEIT fos SR SIRS A AAT T fi UM HU TA HE erst AFS ABE Lexmark TE 259 ABA RO 2451 AA Fol SEE AA 5191 14 Ho SH Lexmark COE mal Fol chest AAS xx SBC x xol H5 hi ME AIA 2 4HgoOz AME ABE USE T user 4719 SAS HAL QUE Ago AYAH HE 2 0 AMS maleta Bose QE BAS Slots xvi Service Manual 4227 00 1 General Information Description The Lexmark Form Printer 4227 100 and 4227 200 are dot matrix electro mechanical printers that form characters on print media using a printhead and fabric ribbon The printhead is composed of 18 miniature solenoids containing print wires and operates on electromagnetic principles When a solenoid is energized the small print wire pin is fired toward the ribbon to make a dot on the paper The printer receives commands in the form of an electronic data stream from the PC through the parallel or serial port connector The printer logic receives and translates the electronic data stream into carrier returns line spacing characters or graphics as instructed General Information 1 1 4227 X00 This is a versatile printer that combines excellent print qualit
16. Board lt gt Auto Gap Sensor CN8 Pin 1 5 V Pin 2 AGHPC Pin 3 AGHP Main Logic Board lt gt Carrier Motor Cable 1 CN9 Pin 1 CA Pin 2 CA Connector Locations 5 13 4227 X00 Main Logic Board lt gt Paper Feed Motor CN10 Pin 1 FDO Pin 2 FDC Pin 3 FDB Pin 4 FDA Pin 5 FDCOM Pin 6 FDCOM Main Logic Board lt gt Tractor 2 DIN Main Logic Board lt gt Carrier Motor Cooling Fan 4227 200 CN13 Pin 1 26Vdc Pin 2 26Vdc Pin 3 Power Gnd Pin 4 PSET Pin 5 45Vdc Pin 6 DTCOM Pin 7 DSET Pin 8 Signal Gnd Pin 9 DTMTA Pin 10 DTMTB Pin 11 JAM Pin 12 DHP Pin 13 DPOS CN17 Pin 1 Fan Pin 2 Fan 5 14 Service Manual 4227 X00 Main Logic Board lt gt 5 V dc Power 4227 200 CN23 Pin 1 Signal Gnd Pin 2 5 V dc Main Logic Board lt gt Operator Panel Main Logic Board Operator Panel Board CN14 CN3 Pin 1 5Vdc Pin 1 5 Pin 2 SLATCH Pin 2 SLATCH Pin 3 5Vdc Pin 3 5Vdc Pin 4 TXD Pin 4 TXD Pin 5 Signal Gnd Pin 5 Signal Gnd Pin 6 RXD Pin 6 RXD Pin 7 Signal Gnd Pin 7 Signal Gnd Pin 8 SCLK Pin 8 SCLK Pin 9 Signal Gnd Pin 9 Signal Gnd Pin 10 LLATCH Pin 10 LLATCH Main Logic Board lt gt Carrier Motor Cable 2 CN15 Pin 1 5Vdc Pin 2 EA Pin 3 Gnd Pin 4 EB Pin 5 Gnd Pin 6 CATHM Pin 7 Not Used Connector Locations 5 15 4227 X00 Main Logic Board lt gt
17. Carrier Plate 4 16 Lave dam desde ieee aga vane ee 4 16 Lower Feed Roller Removal 4 17 Lower Pinch Roller Removal 4 21 Main Logic Board Removal 4 22 Memory Module Removal 4 22 Operator Panel Assembly Removal 4 23 Paper Empty Sensor TOF Sensor Removal 4 23 Paper Feed Motor Removal 4 26 Paper Guide 4 26 Paper Guide Platen Assembly Removal 4 26 Paper Select Lever Removal 4 27 Paper Select Sensor Removal 4 27 Paper Separator 4 28 Power Supply 4 30 Power Supply Fan Removal 4 30 Print Unit Hemoval 4 30 Printhead 4 33 4227 X00 Printhead Cables Removal 4 34 Ribbon Drive Motor Assembly Removal 4 35 Right Side Frame Removal 4 36 Sub Logic Board Removal 4 38 Upper Feed Roller Removal 4 39 Connector Locations amas 5 1 RAPT XP EN 5 2 Main Logic Board Connectors 5 3 9 5 5 gest ni GE 5 4 Sub Logic Board Connectors
18. Margin Lines Per Inch Eject by FF Press Next Press Next On Off Single Uni Dir Print Auto Rdy Cut Sht Paper Out Alarm TOF Read Menu Language Interface Serial Select Data Speed Data Bits Parity Stop Bits Protocol Honor DSR Polarity 1 10 Service Manual Paper Hand Opt Press Control Options Emulation Opt Interface Opt Print Adjust Press Press Press Buffer Size Automatic LF Automatic CR Slashed Zero FF Enable Code Page Sub Emulation Character Table International Character Draft Courier 4227 X00 Buttons When using the function menus press Item J or Item T to scroll through the menu items Press Next or Prev lt to move to the next or previous menu level Press this button To Menu Enter the function menu The printer goes offline Quit Exit the function menus Run a Power On Self Test POST Tear Off Advance the forms to the tear off position Retract the forms to the Top of Form TOF position when the forms are at the tear off position Store Save the values selected in the menus Font Select a font Item Scroll down Pitch Select a pitch Item T Scroll up Micro 4 Advance the forms down 0 35 mm 1 72 in Next gt Scroll forward Micro T Advance the forms up 0 35 mm
19. No Print or Abnormal Print Service Check FRU Function Action 1 Carrier If the carrier moves but nothing is printed go to the Print Wire Drive Failure Service Check on page 2 28 2 Configuration Enter the user menus and be sure the correct emulation IBM EPSON and interface parallel serial are selected If the printer is serially attached be sure the RS232 RS422 switch is in the correct position and the host communications parameters are correct 3 Main Logic Board If the Print Test does not print or prints incorrectly do the following Replace the main logic board Set the Bidirectional Print Adjustment on page 4 4 and the Printhead to Platen Gap Adjustment on page 4 2 2 18 Service Manual 4227 00 Operator Panel Service Check Note Press any button except Start Stop Load Unload or FormFeed If Operator Panel Disabled is displayed unlock the operator panel by powering up with the Micro and Micro keys pressed Use the same procedure to re lock the panel after service is complete FRU Action 1 Operator Panel If there is 631 Display RAM Error replace the operator panel If there is 63 Key Scan Error one or more buttons are being detected as pressed during power up Replace the operator panel 2 Printer Cable During power up all LEDs and all LCD pels Operator Panel should turn on briefly Enter the Service Menu and perform th
20. Pin 15 16 Pin25 18 14 18 26 12 Pin 13 12 27 14 12 14 Pin28 Li Pin11 Li Pin 29 L3 10 13 30 15 9 15 Pin 31 17 Pin 8 17 Pin 32 R8 Pin 7 R8 Pin 33 19 6 19 34 R4 Pin 5 R4 35 R6 Pin 4 R6 36 R7 Pin 3 R7 Pin37 R2 Pin 2 R2 Pin 38 NC Pin 1 NC Connector Locations 5 11 4227 X00 Main Logic Board lt gt Sub Logic Board 4227 200 Main Logic Board Sub Logic Board CN3 CN3 Pin 1 HCSEL Pin 22 HCSEL Pin 2 Signal Gnd Pin 21 Signal Gnd Pin HDTHERMO Pin 20 HDTHERMO Pin 4 R1COM Pin 19 R1COM Pin 5 1 Pin 18 1 Pin 6 R2COM Pin 17 R2COM Pin 7 L2COM Pin 16 L2COM Pin 8 L3COM Pin 15 L3COM Pin 9 R3COM Pin 14 R8COM 10 LACOM Pin 13 LACOM 11 R4COM Pin 12 R4COM 12 L5COM Pin 11 L5COM 13 10 14 L6COM Pin 9 16 15 R6COM Pin 8 R6COM 16 L7COM Pin 7 L7COM 17 R7COM Pin 6 R7COM 18 18 5 L8COM Pin 19 18 Pin 4 R8COM Pin 20 19 Pin 3 19 Pin 21 R9COM 2 R9COM 22 BUZZER Pin 1 BUZZER 5 12 Service Manual 4227 X00 Main Logic Board lt gt Paper Select Sensor CN4 Pin 1 Not Used Pin 2 Signal Gnd Pin 3 FRETRA Pin 4 Signal Gnd Main Logic Board lt gt Paper Empty amp TOF Sensors CN7 Pin 1 PE1P Pin 2 PE1 Pin 3 Signal Gnd Pin 4 PE2P Pin 5 PE2 Pin 6 Signal Gnd Main Logic
21. and remove its shaft through the large part of the keyhole Push the pulley upward and remove it to free the carrier belt Repair Information 4 13 4227 X00 9 Remove the gear flag 3 from the end of the carrier shaft 10 Remove the bearing 4 and its retainer 5 by pulling the bearing free and lifting the end of the carrier shaft 11 Slide the carrier shaft toward the carrier motor to free the other end Reinstallation 1 The bearing and retainer must be on the shaft when the shaft is lowered into place Make sure the bearing flange goes behind the black double gear 2 Rotate the shaft to get the bearing to seat in the side frame 3 After reinstalling check the Printhead to Platen Gap Adjustment on page 4 2 4 14 Service Manual 4227 X00 Carrier Motor Assembly Removal 1 2 Remove the top cover See Top Cover Removal on page 4 6 Disconnect carrier motor connectors and CN15 from the main logic board Loosen the two tension pulley plate screws Pull upward on both sides of the belt to move the tension pulley plate as far as possible toward the center of the printer then retighten the large screw Remove the three screws 1 holding the motor to its bracket Remove the carrier motor Reinstallation 1 2 Be sure the motor pulley goes inside the belt as the motor is being reinstalled The shaft bearing should be under the ribbon motor plate mounted t
22. error returns when the machine is cool replace the carrier motor 2 14 Service Manual 4227 00 Intermittent Problem Service Check FRU Symptom Action 1 The machine Check for the following sometimes fails before POST is 1 Loose connectors Reconnect all connectors complete to the main and sub logic boards 3 Electrical noise or static discharge Check the following items Power supply ground Machine frame ground Printer interface cable is grounded and shielded 2 Intermittently low voltages Check for ac and all dc voltages and short circuits on the main and sub logic boards a Check the electrical voltage and ensure that it is within tolerance b Check the continuity of the power cord c Disconnect the power supply cable from the connectors CN11 on the main logic board and CN1 on the sub logic board Turn the printer power on and check all output voltages at CN11 and CN1 Ensure the output voltages are CN11 1 40 4 amp 11 3 GND CN11 2 40 4 V dc amp CN11 3 GND CN11 5 5 0 5 dc amp CN11 6 Signal GND CN 1 1 40 4 Vdc amp CN1 3 GND 1 2 40 4 V dc amp CN1 3 GND 1 5 5 0 5 V amp CN1 6 Signal GND If the voltages are not correct replace the Power Supply Unit If the failure remains replace the main logic board and sub logic board Note When replacing the main logic board always
23. in Analog or digital volt ohmmeter 1 4 Service Manual 4227 00 Abbreviations ASF ASIC CSU DRAM EPROM ESD FRU HVPS LAN LCD LED LVPS NVRAM OEM POR POST PQET ROS SRAM UPR Vac Vdc Automatic Sheet Feeder Application Specific Integrated Circuit Customer Setup Dynamic Random Access Memory Erasable Programmable Read Only Memory Electrostatic Discharge Field Replaceable Unit High Voltage Power Supply Local Area Network Liquid Crystal Display Light Emitting Diode Low Voltage Power Supply Nonvolatile Random Access Memory Original Equipment Manufacturer Power On Reset Power On Self Test Print Quality Enhancement Technology Read Only Storage Static Random Access Memory Used Parts Replacement Volts alternating current Volts direct current General Information 1 5 4227 X00 Using the Operator Panel This section provides a brief description of the operator panel buttons lights and settings Refer to the User s Guide for additional information Note Application software may allow the user to operate the printer from a computer Changes made to the printer settings from a software application override settings made from the operator panel with the exception of the Font and Pitch Lock features Changeable printer functions include Set Top of Form Tractor selection Character options e Paper handling options Interface options Emulation options Macro definition a
24. its actuator touches the printer cover The home sensor detects the position of the slider When Tractor 2 is selected the motor driven Tractor 2 slider pushes the printer sub slider cam lever to engage the printer gear train which drives the Tractor 2 tractors When the Tractor 2 is deselected the motor retracts the slider disengaging the Tractor 2 gear drive and reengaging the printer tractors 63D Tractor2 HP Error The Tractor 2 home sensor was never initialized after turning the printer off and then on or made at the wrong time The same error indication is used for carrier home failure FRU Action 1 Tractor 2 Remove the Tractor 2 and turn the printer off Home Sensor and then on again to determine if the fault is in the printer or Tractor 2 If the gear teeth chatter just before the error is displayed replace the home sensor Diagnostic Information 2 31 4227 X00 FRU Action 2 Main Logic Board Remove Tractor 2 from the printer but leave the cable connected Make sure the slider the black plastic piece just above the right cover moves after turning the printer off and then on If the slider does not move after turning the printer off and then on Make sure the slider and gear train are properly connected and move freely with the power off Make sure the Tractor 2 board is receiving 26 V dc on CN1 1 and 5V dc CN1 5 If not check the cable connection a
25. of the Service Menu test print page Error indicators print on the top line of the Error Log and their corresponding counters print below The error indicators are the last two digits of the 6XX Machine Check display indication An error indicator 00 indicates no errors are registered in the counter Each new error appears in the left most position and the previous error indicator shifts one position to the right If the new error indicator is the same as the previous error indicator the counter is increased by 1 The maximum count number for the same error is 256 and the counter remains at this value X FF No more than 16 most recent error indicators can be printed in the error log area 3 6 Service Manual 4227 00 4 Repair Information This chapter contains adjustments and removal procedures Whenever parts are replaced make sure that all adjustments are correct by running diagnostics procedures and checking adjustments as needed Handling ESD Sensitive Parts Many electronic products use parts that are known to be sensitive to electrostatic discharge ESD To prevent damage to ESD sensitive parts follow the instructions below in addition to all the usual precautions such as turning off power before removing logic boards Keep the ESD sensitive part in its original shipping container a special ESD until you are ready to install the part into the machine Make the least possible movements with your body t
26. on and measure 5 0 5 V dc at the sub logic board cable CN1 5 and 40 4 V dc at CN1 1 and CN1 2 If there is no voltage check the internal fuse before replacing the power supply A 634 Power Failure indicates that the 5 V dc is OK but the 40 V dc is not Power the printer off wait 10 seconds and power back on If the 634 reappears either the power supply has failed or there is a short in a motor that uses 40 V dc Diagnostic Information 2 25 4227 X00 FRU Action Ribbon Motor Paper Feed Motor Carrier Motor Sub Logic Board 4227 200 Carrier Motor Cooling Fan Disconnect the carrier motor CN9 and CN15 the paper feed motor CN10 ribbon motor CN19 and the 4227 200 carrier motor cooling fan CN17 from the main logic board and disconnect the power connector CN 1 from the sub logic board Turn the power on again If there is still a power problem replace the main logic board If the machine posts a different error one of these items is shorted and is holding down the 40 V dc line Reconnect them one at a time turning the printer on in between each connection Replace the item that causes the power failure 4 Printhead Cables Printhead Disconnect the printhead cables from the sub logic board and turn the printer on If the power LED lights correctly only with the printhead cables disconnected from the sub logic board there is a short in the printhead or printhead cables
27. on page 5 21 2 Main Logic Board Check the cable connection from Tractor 2 to the printer If possible try the Tractor 2 with another printer to determine if the problem is the Tractor 2 board cable assembly or the printer main logic board Diagnostic Information 2 33 4227 X00 Paper Feed Problems FRU Action 1 Tractor 2 2 34 Service Manual On the printer make sure the Tractor 2 driving gear turns freely when the white sub slider cam is not pressed Be sure the driving gear does not move when the sub slider cam behind the gear is pressed Remove Tractor 2 from the printer and remove all paper With the paper select lever in the continuous forms position press LineFeed the tractors should rotate Press the sub slider cam below the ASF Tractor 2 drive gear and press LineFeed again the tractors should not rotate but the drive gear should Check the condition of the pin feed belts With the power off make sure the slider does not bind Verify When the slider is to the rear the white gear drives the tractors When the slider is to the front the gear and tractors are not connected Remove the Tractor 2 cover and reinstall Tractor 2 in the printer if necessary remove the printer covers also Note that the small idler gear just below the slider is held in place by the cover with the cover removed it will tend to move off the stud Also note that when opera
28. paper Abnormal noise while feeding Paper jams skews or creases Incorrect or no line spacing wider narrower or overlapping lines Incorrect Top of Form positioning Be sure the paper select lever is in the correct position Go to the Paper Feed Service Check on page 2 20 2 6 Service Manual 4227 X00 Operator Panel Problems Symptom Action Start Stop does function but no error is indicated Only the Power light turns on One or more buttons do not function One or more lights do not function Blank display Cover open displayed Turn the printer off and then on Go to the Operator Panel Service Check on page 2 19 Power Problems Symptom Action When the power switch is on the Power light does not turn on or the printer does not start The Power light blinks or changes intensity Check the continuity of the power cord and the voltage of the electrical outlet Go to the Power Failure Service Check on page 2 25 Diagnostic Information 2 7 4227 X00 Print Quality Problems Symptom Action No print but carrier moves as if printing Be sure the printhead cables are not loose or damaged Be sure the interface cable is connected properly Check the ribbon cartridge for binds or damage Go to the Print Wire Drive Failure Service Check on page 2 28 Print density
29. the next higher assembly should be ordered R Restricted in the Units column indicates that the part has a restricted availability NS Not Shown in the Asm Index column indicates that the part is procurable but is not pictured in the illustration PP Parts Packet in the Description column indicates that the part is contained in a parts packet Parts Catalog 7 1 4227 X00 Assembly 1 Covers and Operator Panel 7 2 Service Manual 4227 00 Asm Part Index Number 1 1 11A6201 Cover Assembly Ribbon Access 2 11A6208 Cover Acoustic 79F4782 Paper Stand 1333164 Extender Paper Guide Left 1333166 Extender Paper Guide Center 1333165 Extender Paper Guide Right 11A6207 Switch Assembly Cover with Cover Switch Plate 11A6203 Cover Rear 4227 100 12G0226 Cover Rear 4227 200 9 11A6189 Cover Assembly Front Complete 10 1333152 Guide Paper Left 11 1333167 Guide Paper Right 12 79F4825 Guide Cover Front 13 11A6204 Cover Assembly with Logo Top 4227 100 13 12G0213 Cover Assembly with Logo Top 4227 200 14 11A6253 Overlay Kit Operator Panel 15 11A6205 Operator Panel Assembly with English Overlay 16 11A6206 Cable Operator Panel Description N DO BR Parts Catalog 7 3 4227 X00 Assembly 2 Paper Feed 7 4 Service Manual 4227 00 Description Index Number 2 1 11A6231 Feed Roller Upper 2 11
30. the paper feed gears for wear and tear 10 Paper Feed Motor The paper feed motor should turn smoothly and quietly when printing 11 Tractors Inspect the tractors for damage or looseness 12 Feed Roller Inspect the feed roller surfaces for dirt or wear Surfaces Diagnostic Information 2 27 4227 X00 Print Wire Drive Failure Service Check FRU Symptom Action Missing Dots Carrier moves but no printing or printhead sound Perform the print test to determine which wires are not printing Disconnect the printhead cables from the sub logic board and check the resistance for the affected wires The resistance for each wire should be around 8 5 ohms Left Bank Right Bank Wire 1 CN3 11 amp CN3 18 CN3 9 amp CN3 4 Wire 2 CN4 11 amp CN4 20 CN4 9 8 CN4 2 Wire 3 3 13 8 CN3 16 7 amp 6 Wire 4 CN4 13 amp CN4 18 CN4 7 amp CN4 4 Wire 5 CN4 15 amp CN4 16 CN4 5 amp CN4 6 Wire 6 4 17 8 CN4 14 4 1 8 4 8 Wire 7 CN3 15 8 CN3 14 CN3 3 amp 8 Wire 8 4 19 amp CN4 12 CN4 3 amp CN4 10 Wire 9 CN3 17 amp CN3 12 CN3 5 amp CN3 10 Note 4227 200 connectors will be CN1 and CN2 If the resistance for the affected wires is incorrect disconnect the printhead cables from the printhead and measure the resistance of the printhead for the same wires The resistance should be around 7 9 ohms If the resistance is correct replace the printhead cable
31. 00 5 Memory Module 4 22 Operator Panel 4 23 Paper Empty Sensor 4 23 Paper Feed Motor 4 26 Paper Guide 4 26 Paper Guide Platen 4 26 Paper Select Lever 4 27 Paper Select Sensor 4 27 Paper Separator 4 28 Pinch Roller Lower 4 21 Power Supply 4 30 Power Supply Fan 4 30 Print Unit 4 30 Printhead 4 33 Printhead Cables 4 34 Ribbon Drive Motor 4 35 Right Side Frame 4 36 Sub Logic Board 4 38 TOF Sensor 4 23 Top Cover 4 6 Upper Feed Roller 4 39 Safety Information x Service Checks 2 10 Abnormal Print 2 18 ASF Auto Sheet Feeder 2 12 Auto Gap 2 10 Auto Sheet Feeder 2 12 Carrier Drive 2 14 Intermittent Problem 2 15 No Print 2 18 Operator Panel 2 19 Paper Feed 2 20 POST 2 24 Power Failure 2 25 Print Quality 2 27 Print Wire Drive Failure 2 28 Ribbon Drive 2 30 Tractor2 2 31 Setting Printer Functions 1 8 Signal Connections 5 9 Block Diagram 4227 100 5 20 Block Diagram 4227 200 5 20 Main Logic Board Auto Gap Motor 5 16 Main Logic Board Carrier Mo tor Cable 1 5 13 Main Logic Board Carrier Mo tor Cable 2 5 15 Main Logic Board Carrier Mo tor Cooling Fan 4227 200 5 14 Main Logic Board Operator Panel 5 15 Main Logic Board Paper Feed Motor 5 14 Main Logic Board Parallel terface Cable 4227 100 5 9 Main Logic Board Parallel In terface Cable 4227 200 5 10 Main Logic Board Ribbon Mo tor 5 16 Main Logic Board Serial Board 4227 200 5 17 Main Logic Boar
32. 1 2 1100023 ROM 4227 100 2 12G0227 ROM Kit 4227 200 3 12G3515 Power Supply 100 240 V ac NS 11A6244 Fuse Power Supply NS 11A6245 Fan Power Supply 4 11A6249 Ground Wire 5 11A6251 Bracket Tractor Cable 6 11A6250 Cable Tractor 7 11A6242 Base Assembly 8 1339526 Linecord U S Canada AFE LV Saudi Arabia LV Central and South America Mexico 8 1339519 Linecord United Kingdom Malaysia and Singapore 8 1339520 Linecord Germany France Spain Norway Finland The Netherlands Austria Belgium Brazil Greece Luxembourg Portugal Sweden Turkey Saudi Arabia HV Indonesia 8 1339525 Linecord Denmark 8 1339524 Linecord Italy and Chile 8 1339521 Linecord Israel 8 70G0496 Linecord Japan 8 1339523 Linecord South Africa 8 1339522 Linecord Switzerland 8 1339518 Linecord Australia New Zealand Argentina Paraguay 8 1339517 Linecord Peru 9 11A6255 Screw and Clip Kit 10 1180727 32Kb Memory Module Option 10 11A6185 Extended NLS Module Eastern Europe Option 10 11A6186 Extended NLS Module Middle East Countries Option 11 12G0222 Serial Port Card and Bracket Asm 4227 200 12 12G0223 Serial Port Card to Main Logic Board Cable 4227 200 13 12G0218 Torroid 4227 200 14 12G0211 Paper Guide MyLar Strip Parts Catalog 7 9 4227 X00 Assembly 5 ASF Side Frame Covers 7 10 Service Manual 4227 00 Asm Part
33. 1 72 in Prev Return to the previous function menu Start Stop Used to return to Ready and to Start Stop Load the forms to TOF position with the ready light on Load Unload e Load paper cut or continuous forms to the TOF position Retract the forms to the tractor position LineFeed e Advance the paper to the next line FormFeed e Advance the paper to the TOF position on the next page Load the forms to the TOF position e General Information 1 11 4227 X00 Lights Light When you see this light Power Green The printer power is on Ready Green Check Yellow The printer is online and ready to print The following conditions cause the Ready light to turn off Pressing Start Stop end of form EOF A paper jam open A hardware error A Power On Self Test failure The printer is offline Any of the following conditions may have occurred end of form EOF A paper jam cover open A hardware error A data transmission error An interface mode error A Power On Self Test POST failure Auto Gap Green Auto Gap is on Auto Gap automatically adjusts the printer according to the thickness of the paper you are using Tractor2 Green The Tractor 2 Feeder is selected The Tractor 2 Feeder option must be installed 1 12 Service Manual 4227
34. 7 Remove the upper screw from the serial port card mounting bracket 4 30 Service Manual 4227 X00 7 Remove the three screws 1 from the left side holding the print unit to the base 8 Remove the screw 2 from the right side holding the print unit to the base Repair Information 4 31 4227 X00 9 Slide the printer partway off the edge of the table From the bottom remove the screw 3 holding the front of each side frame to the base 10 Lift the print unit from the base Reinstallation For ease of reassembly remove the flexible signal cable from the main logic board and connect it to the sub logic board before reinstalling the print unit 4 32 Service Manual 4227 X00 Printhead Removal 1 Turn the printer off 2 Disconnect the power cord at the printer Caution Allow the printhead to cool for 15 minutes 3 Remove the ribbon cover and ribbon 4 Remove the two screws 1 on the cable retainer and disconnect the two cables These are ZIF connectors 5 Remove the two screws 2 holding the printhead to the carrier and lift the printhead out Reinstallation 1 Fold the printhead cables under the printhead to prevent the tension pulley plate from interfering with the cables 2 Hold the printhead down while pressing it toward the platen and tighten the two printhead mounting screws 3 Check the Printhead to Platen Gap Adjustment on page 4 2 Repair Information 4 33 4227 X00
35. A6203 7 3 11A6252 11A6204 7 3 11A6253 11A6205 7 3 11A6255 11A6206 7 3 11A6256 11A6207 7 3 11A6257 11A6208 7 3 11A6258 11A6209 7 5 11G0023 1146210 7 5 1180727 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNYNNNYNYY O1 O1 O1 O1 CO CO O1 O1 O1 C1 C1 O1 O1 Oi Oi Ci OI O M M M M MI MI O1 O1 N SQ 4227 X00 12G0210 12G0211 12G0212 12G0213 12G0214 12G0215 12G0216 12G0217 12G0218 12G0220 12G0221 12G0222 12G0223 12G0224 12G0225 12G0226 12G0227 12G0228 12G0229 12G0230 12G0231 12G0232 1333152 1333161 1333162 1333164 1333165 1333166 1333167 1333275 1333277 1333278 1333279 1333280 1339517 1339518 1339519 1339520 1339521 1339522 1339523 1339524 1339525 1339526 27 5 20 65F6897 70G0496 79F4782 79F4825 79F4830 79F4832 95F6880 95F6881 95F6882 95F6892 95F6893 95F6894 95F6896 95F6898 95F6899 95F6901 95F6903 HT pl IN IN CO CO CO CO CO w CO 7M 7M M O1 O1 O1 CO ONN WON ON N NNNNNNNNNNNNNNNNNNNNYNYN O O CO CO CO CO cO M A 00 CO 0 CO 20 Reader Comment Lexmark 4227 X00 Forms Printer Form Service Manual U S P N 12G0185 June 1999 You may use this form to communicate your comments about this publication with the understanding that Lexmark may use or distrib
36. A6257 Bearing Kit 3 11A6233 Frame Support Shaft 4 11A6240 TOF amp Paper Empty Sensors with Flags amp Springs 5 11A6239 Paper Guide Platen Assembly 6 11A6234 Bracket Auto Gap Motor 4227 100 6 12G0229 Bracket Auto Gap Motor 4227 200 7 11A6241 Roller Feed Lower 8 79F4832 Roller Pinch Lower 9 11A6235 Side Frame Assembly Left 4227 100 9 12G0221 Side Frame Assembly Left 4227 200 10 11A6237 Sensor Paper Select 11 11A6256 Gear Kit 12 11A6232 Separator Paper 13 11A6236 Latch Ribbon 14 11A6238 Side Frame Assembly Right 15 11A6255 Screw and Clip Kit 16 11A6258 Spring Kit 17 11A6230 Plate Carrier 18 11A6209 Tractor Side Frame Left 19 11A6210 Tractor Side Frame Right 20 11A6256 Gear Kit 21 11A6211 Tractor Pair with Sensors Left and Right 22 11A6212 Shaft Kit Tractor 23 79F4830 Paper Guide Tractor 24 12G0228 Carrier Motor Cooling Fan 4227 200 Parts Catalog 7 5 4227 X00 Assembly 3 Carrier 5 1 7 6 Service Manual 4227 00 quud EUM Description 3 1 11A6229 Sensor Auto Gap 2 11A6216 Board and Bracket Sub Logic 4227 100 2 12G0214 Board and Bracket Sub Logic 4227 200 3 11A6255 Screw Parts Packet 4 11A6215 Motor Paper Feed Assembly with Bracket 5 11A6257 Bearing Parts Packet 6 11A6256 Gears Parts Packet 4227 100 6 12G0212 Gears Parts Packet 4227 200 7 11A6220 Motor Ribbon Dri
37. Pin 7 RH3 Pin 7 RH4 Pin 8 RH7C Pin 8 RH6C Pin 9 Pin 9 RH2 Pin 10 RH9C Pin 10 RH8C Pin 11 LH1 Pin 11 LH2 Pin 12 LH9C Pin 12 LH8C Pin 13 LH3 Pin 13 LH4 Pin 14 LH7C Pin 14 LH6C Pin 15 LH7 Pin 15 LH5 Pin 16 LH3C Pin 16 LH5C Pin 17 LH9 Pin 17 LH6 Pin 18 LH1C Pin 18 LHAC Pin 19 LH8 Pin 20 LH2C 5 18 Service Manual 4227 X00 Sub Logic Board lt gt Printhead 4227 200 CN1 CN2 Pin 1 RH8 Pin 1 RH3 Pin 2 RH8C Pin 2 RH3C Pin RH7 Pin 3 RH2 Pin 4 RH9C Pin 4 RH4C Pin 5 RH6 Pin 5 RH1 Pin 6 RH9 Pin6 RH5C Pin 7 RH7C Pin 7 RH2C Pin 8 5 V dc Pin 8 RH4 Pin 9 RH6C Pin 9 RH1C Pin 10 HDTHERMO 10 RH5 Pin 11 Pin 11 Pin 12 LH9 Pin 12 LH5 Pin 13 LH7C Pin 13 2 Pin 14 LH8 Pin 14 LH4 Pin 15 LH6 Pin 15 Pin 16 LH9C Pin 16 5 Pin 17 LH7 Pin17 LH2 Pin 18 LH8C Pin 18 LH4C Pin 19 LHS Pin20 Operator Panel Board lt gt Ribbon Cover Sensor CN1 Pin 1 C Open Pin 2 Signal Gnd Connector Locations 5 19 4227 X00 Connector Block Diagram 4227 100
38. Tractor PSet amp Jam Sensors CN18 Pin 1 TRPSS Pin 2 TRPSG Pin 3 TRJMP Pin 4 TRJAM Pin 5 TRJMG Pin 6 DSET Main Logic Board lt gt Ribbon Motor CN19 Pin 1 RBD Pin 2 RBC Pin 3 RBB Pin 4 RBA Pin 5 RBCOM Pin 6 RBCOM Main Logic Board lt gt Auto Gap Motor CN20 Pin 1 GPD Pin 2 GPB Pin 3 GPC Pin 4 GPA Pin 5 GPCOM Pin 6 GPCOM 5 16 Service Manual 4227 X00 Main Logic Board lt gt Serial Board 4227 200 Main Logic Board Serial Board CN22 CN2 Pin 1 TXD422 Pin 12 TXD422 Pin 2 RXD422 Pin 11 RXD422 Pin 3 RXD422 Pin 10 RXD42 Pin 4 TXD422 Pin 9 TXD422 Pin 5 DTR Pin 8 DTR Pin 6 Signal Gnd Pin 7 Signal Gnd Pin 7 DSR Pin 6 DSR Pin 8 CTS Pin 5 CTS Pin 9 RTS Pin 4 RTS Pin 10 RXD Pin 3 RXD Pin 11 TXD Pin 2 TXD Pin 12 SBSET Pin 1 SBSET Serial Board lt gt Serial Cable 4227 200 CN1 Pin 1 Chassis Gnd Pin 14 NC Pin 2 TXD Pin 15 RXD422 Pin 3 RXD Pin 16 NC Pin 4 RTS Pin 17 RXD422 Pin 5 CTS Pin 18 NC Pin 6 DSR Pin 19 TXD422 Pin 7 Signal Gnd Pin 20 DTR Pin 8 NC Pin 21 NC Pin 9 NC Pin 22 NC Pin 10 NC Pin 23 NC Pin 11 NC Pin 24 NC Pin 12 NC Pin 25 TXD422 Pin 13 NC Connector Locations 5 17 4227 X00 Sub Logic Board lt gt Printhead 4227 100 CN3 CN4 Pin 1 THRMO Pin 1 RH6 Pin 2 5 Pin 2 RH2C Pin 3 RH7 Pin 3 RH8 Pin 4 Pin 4 RH4C Pin 5 RH9 Pin 5 RH5 Pin 6 RH3C Pin 6 RH5C
39. adjust the Bidirectional Print Adjustment on page 4 4 Check the Printhead to Platen Gap Adjustment on page 4 2 636 Machine Check NOVRAM Error Non Volatile Memory Read Write Error Replace the main logic board and adjust the Bidirectional Print Adjustment on page 4 4 Check the Printhead to Platen Gap Adjustment on page 4 2 Home Timeout Error Go to the Carrier Drive Service Check on page 2 14 637 Machine Check CA Drive Error 638 Machine Check CA Drive Error Carrier Drive Error No emitter pulse detected Go to the Carrier Drive Service Check on page 2 14 639 Machine Check CA Drive Error Carrier Drive Error Carrier positioning error Go to the Carrier Drive Service Check on page 2 14 63B Machine Check Key Scan Error Button Scanning Error Go to the Operator Panel Service Check on page 2 19 2 2 Service Manual 4227 X00 Display Indication Description Action 63C Machine Check Auto Gap Error Auto Gap Error Go to the Auto Gap Service Check on page 2 10 63D Machine Check Tractor2 HP Error Tractor 2 Home Position Error Go to the Tractor 2 Service Check on page 2 31 63E Machine Check Head Thermal Error Head Thermal Sensor Error Go to the Print Wire Drive Failure Service Check on page 2 28 63F Machine Check Option RAM Error Option RAM Read Write Error Replace the 32Kb Memory Module 640 Machine Ch
40. am 9 Loosen several turns but do not remove the support shaft screw 6 and the two platen screws 10 Wiggle the right side frame and pull it about 2 mm to the right 11 Flex the front of the side frame outward slightly to free the right end of the paper separator 7 12 Remove the paper separator Repair Information 4 29 4227 X00 Power Supply Removal CAUTION The power supply may be hot 1 2 3 4 5 Turn off the printer and disconnect the power cord at both ends Remove the top cover See Top Cover Removal on page 4 6 Disconnect the power connectors from the sub logic board and main logic board Remove the five mounting screws and the ground wire screw Lift the rear edge of the supply and remove it from the printer Power Supply Fan Removal Remove the power supply Remove the four screws holding the power supply board to the cover Pivot the board out of the cover far enough to disconnect the fan connector Remove the three screws holding the fan to the cover Print Unit Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Disconnect the tractor connector Disconnect the flexible signal cable and the power cable from the sub logic card Remove the ground leads from the four corners of the print unit Disconnect the following connectors from the main logic board CN4 CN7 CN8 9 CN10 CN15 CN18 CN19 and CN20 4227 200 Disconnect CN1
41. and over rides the Normal Auto selection High pin force is used to obtain clearer print on medium thickness forms Leaving the printer in High can damage the printhead especially if printing on single sheet forms Normal 1P Disables the automatic setting of the impact force Normal 1P is used to print in normal force when thicker print media is used such as labels Log Clear Clears the error log Print Test The Print Test prints The ASCII character set Aline from each print wire The bidirectional print alignment pattern The contents of NVRAM The error log Other Print Tests The following print tests are accessed outside the Service Menu Adraftonly 8 inch wide continuous print test This test is activated by turning the printer on with the Load Unload and LineFeed buttons pressed Adraftonly 13 6 inch wide continuous print test This test is activated by turning the printer on with the LineFeed and FormFeed buttons pressed Note These tests print a running page count at the bottom of each page Use the Start Stop button to start and stop the test Other Diagnostic Aids 3 5 4227 X00 buttons that are active during this test are the Micro or Micro Load Unload LineFeed and FormFeed Print Demo and the Print Settings page are accessed from the user menus Print Settings prints Macro status and paper handling settings and prints 8 inches wide Error Log The Error Log printout is part
42. and safety instructions Diagnostic Information contains error code table symptom table and service checks used to isolate failing field replaceable units FRUs Diagnostic Aids contains tests and checks used to locate or repeat symptoms of printer problems Repair Information provides instructions for making printer adjustments and removing and installing FRUs Connector Locations uses illustrations to identify the major components and test points on the printer Preventive Maintenance contains lubrication specifications and maintenance information to prevent problems and maintain optimum performance Parts Catalog contains illustrations and part numbers for individual FRUs x Service Manual 4227 X00 Preface xi 4227 X00 Notices Safety Information This product is designed tested and approved to meet strict global safety standards with the use of specific Lexmark components The safety features of some parts may not always be obvious Lexmark is not responsible for the use of other replacement parts The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others There may be an increased risk of electric shock and personal injury during disassembly and servicing of this product Professional service personnel should understand this and take necessary precautions Consignes de S curit Ce produit a t concu tes
43. ap is within the specification 10 Press Store to save the setting in NVRAM Repair Information 4 3 4227 X00 Bidirectional Print Adjustment Perform this adjustment whenever the main logic board carrier or printhead is replaced This test is in the user menu and uses a line length corresponding to the right margin setting Run the test at both the Draft speed setting and at the Courier speed setting The following steps illustrate how to adjust the alignment of the print wires and assumes macros are disabled Load continuous forms Press Menu Press Item J until Print Adjust appears on the display Press Next gt Press J or Item to choose Draft or Courier Draft prints each alignment pattern once uni directional Courier prints each alignment pattern twice bidirectional 6 Press Start Stop to print the alignment pattern eLO TOI 4 4 Service Manual 4227 X00 The following example shows a printer that needs alignment The message Choose the Best Alignment appears on the display 7 Press Next or Prev to adjust the alignment Lines 2 and 4 move to align with lines 1 and 3 The printer is aligned correctly when lines 2 and 4 are vertically aligned with lines 1 and 3 Press Item T to move lines 2 and 4 to the right Press Item to move lines 2 and 4 to the left 8 Press Store to save the selected value 9 Press Start Stop to print the alignment pattern The example below shows pro
44. ble while reinstalling the top cover CAUTION Be sure to unplug the power cord whenever you are working on the printer with one of the covers removed Repair Information 4 7 4227 X00 Auto Gap Motor 1 gt Remove the top cover See Top Cover Removal on page 4 6 Disconnect gap adjust motor connector CN20 from the main logic board Remove the sub logic card Remove the paper feed motor Remove the two gap adjust motor screws 1 through the access holes in the carrier motor mounting bracket and remove the motor 2 4 8 Service Manual 4227 00 Auto Sheet Feeder Gears Removal Remove the right cover 1 Release the latch and then remove the joint gear 2 Remove the idler gear 3 Release the latch and then remove the pick up gear 4 Release the latch and then remove the combination lock mechanism 5 E uU O 3 Repair Information 4 9 4227 X00 Auto Sheet Feeder Pick up Roller Removal 1 2 3 gt Remove the covers and the cut sheet support Remove the idler gear and pick up gear See Auto Sheet Feeder Gears Removal on page 4 9 Remove the left roller bushing 1 Remove the right roller bushing 2 Move the pick up roller 3 to both ends of the shaft and then remove them 4 10 Service Manual 4227 X00 Belt Tension Pulley Plate Assembly Removal 1 Remove the top cover See Top Cover Removal
45. ch test failed See Start on page 2 1 Diagnostic Aids 3 1 4227 X00 Hex Trace Mode The hex trace mode can help the user test and troubleshoot programs You can use the hex trace procedure to get a hexadecimal printout of the data stream sent to the printer All data including control and character data print in hexadecimal instead of ASCII To activate hex trace mode 1 Press Menu 2 Press Item J until Trace Mode is shown on the operator panel 3 Press Start Hex Trace Mode Sample 20 20 20 30 20 20 40 20 DO 20 20 EN 20 eo FH 91 20 20 20 en en 20 62 20 20 7e 20 DA 20 33 20 20 43 20 03 00 en 20 94 en 20 5 20 20 65 20 75 20 OR 20 36 00 C amp 20 20 06 20 20 6 20 gu 97 go 29 eo 20 58 20 20 68 78 UD OA OA 29 20 39 20 00 C9 20 09 20 20 94 AA 20 00 20 58 20 20 68 en DA eo eo 20 CC eo DC 20 eo 0 20 00 20 20 20 20 20 71 20 81 20 en 3e 42 eo se 20 E 20 F2 00 0A 20 20 20 83 20 20 C3 64 20 20 74 20 20 84 20 35 20 45 20 05 80 20 ES 20 80 FS 00 20 eo A6 20 67 20 77 20 20 87 08 20 00 38 20 20 48 20 20 08 20 20 20 99 20 20 A9 20 20 B9 20 20 80 7A 80 20 eo
46. clip and bearing 5 from the end of the lower feed roller shaft 4 36 Service Manual 4227 X00 7 Release and remove the separator plate spring 6 8 Release the spring 7 from the right end of the lower pinch roller 9 Remove the two carrier plate screws 8 One is in the slot in the slider cam 10 Remove the support shaft screw 9 and the two platen screws 10 11 Remove the right side frame Note The upper feed roller bearing should stay in the side frame The lower pinch roller bushing is free on the end of the shaft Repair Information 4 37 4227 X00 Reassembly 1 Remove the paper separator while first installing the side frame loosely Be sure the lower pinch roller spring is above the bushing Remove the screw from the right end of the paper separator Install the left end of the paper separator first then bend the right side frame slightly to get the right end installed Reinstall the separator screw through the hole above the slider cam Set the printhead to platen gap Sub Logic Board Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Disconnect the power connector and the signal connector from the sub logic board Remove the three screws Disconnect the printhead cables and remove the sub logic board Reinstallation For ease of reassembly remove the flexible signal cable from the main logic board and connect it to the sub logic board before
47. correct ground measure the voltage between the ground and a known good voltage source The voltage measurement must be the same as the source voltage to consider the ground is correct Continuity measurements may be used to check grounds however be sure to measure to a known good ground using the lowest ohms scale and check for zero ohms Note Always unplug the power cord before doing any continuity measurement Continuity Readings When measuring continuity be sure no back circuits affect the measurement If necessary unplug connectors to remove any back circuits Zero the ohm range on the lowest scale X1 An open circuit will read infinity A circuit with correct continuity will read zero ohms General Information 1 3 4227 X00 Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit FRU or part Use the error indication table symptom check table service checks and diagnostic aids to determine the symptom and repair the failure Begin with Start on page 2 1 Options The following options may be installed Auto Sheet Feeder ASF e Tractor 2 Extended Cut sheet Paper Guides e 32kb Memory Module Extended National Language Support modules Non U S only Tools The basic tools needed are Basic CE tool kit 1 magnetic Phillips screwdriver 2 magnetic Phillips screwdriver Feeler gauges 0 35 mm 0 014 in 0 4 mm 0 016
48. d Tractor PSet amp Jam Sensors 5 16 Main Logic Board Tractor 2 DIN 5 14 Main Logic Board 5 V dc Pow er 4227 200 5 15 Main Logic Board Auto Gap Sensor 5 13 Main Logic Board Paper Empty amp TOF Sensors 5 13 Main Logic Board Paper Select Sensor 5 13 Main Logic Board Sub Logic Board 4227 200 5 11 5 12 Operator Panel Board Ribbon Cover Sensor 5 19 Power Supply Main amp Sug Log ic Board 5 9 Serial Board Serial Cable 4227 200 5 17 Sub Logic Board Printhead 4227 100 5 18 4227 X00 Sub Logic Board Printhead 11A6211 4227 200 5 19 11A6212 Symptom Checks 11A6214 Abnormal Indications 2 4 11A6215 Abnormal Print Problems 2 4 11A6216 ASF Problems 2 5 11A6217 Operator Panel Problems 2 7 11A6218 Paper Feed Problems 2 5 11A6219 Power Problems 2 7 11A6220 Print Quality Problems 2 8 11A6221 6XX Error Indications 2 5 11A6222 11A6223 T 11A6224 Tests 11A6225 Button Test 3 4 11A6226 Jam PSet Sensor Test 3 4 11A6227 Print Test 3 5 11A6228 Printhead Bank Test 3 4 11A6229 11A6230 U 11A6231 11 6232 U the tor Panel 1 6 sing the Operator Pane Part Numbers 2 11 3284 7 15 Bed 11A6236 1143310 7 7 11A6237 11A3311 7 7 11A6238 11A3332 7 15 11A6239 11A3334 7 13 11A6240 11A3336 7 15 11A6241 11A3337 7 15 11A6242 11A3338 7 15 11A6243 11A3341 7 15 11A6244 11A3343 7 15 11A6245 11A6185 7 9 11A6246 11A6186 7 9 11A6247 11A6189 7 3 11A6249 11A6201 7 3 11A6250 11A6202 7 7 11A6251 11
49. d getestet um beim Einsatz die weltweit g ltigen Sicherheitsanforderungen zu erf llen Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich Sofern Teile eingesetzt werden die nicht von Lexmark sind wird von Lexmark keinerlei Verantwortung oder Haftung f r dieses Produkt bernommen Die Wartungsinformationen f r dieses Produkt sind ausschlieBlich f r die Verwendung durch einen Wartungsfachmann bestimmt W hrend des Auseinandernehmens und der Wartung des Ger ts besteht ein zus tzliches Risiko eines elektrischen Schlags und k rperlicher Verletzung Das zustandige Fachpersonal sollte entsprechende Vorsichtsma nahmen treffen Notices xiii 4227 X00 Pautas de Seguridad Este producto se ha disenado verificado aprobado para cumplir los mas estrictos estandares de seguridad global usando los componentes especificos de Lexmark Puede que las caracteristicas de seguridad de algunas piezas no sean siempre evidentes Lexmark no se hace responsable del uso de otras piezas de recambio informaci n sobre el mantenimiento de este producto esta dirigida exclusivamente al personal cualificado de mantenimiento Existe mayor riesgo de descarga el ctrica y de da os personales durante el desmontaje y la reparaci n de la m quina El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias Informac es de Seguranca Este produto f
50. e Button Test If there are missing or extra pels displayed or if any of these tests fail check the condition and continuity of the operator panel cable Replace the cable or the operator panel 3 Cover Switch If Cover Open is displayed check the cover switch Jumper the cover switch connector on the operator panel If Cover Open is displayed check the condition and continuity of the operator panel cable Replace the cable or the operator panel 4 Main Logic Board If the symptom has not changed replace the main logic board Diagnostic Information 2 19 4227 X00 Paper Feed Service Check Note If the problem is frequent jams or paper creases verify that the paper is neither very thick nor very thin If necessary refer the customer to the User s Guide for specifications of acceptable papers FRU Symptom Action 1 Auto Sheet Feeder If the Auto Sheet Feeder is installed remove it Enter the Paper Handling Options Menu and set ASF to off Verify that the machine works correctly without the ASF installed If the printer fails only with the Auto Sheet Feeder installed go to the Auto Sheet Feeder ASF Service Check on page 2 12 2 Tractor 2 3 Paper Feed Motor If the Tractor 2 option is installed remove it Verify that the machine works correctly without Tractor 2 installed If the printer fails only with Tractor 2 installed go to the Tractor 2 Serv
51. eck CA Thermal Error Carrier Thermal Sensor Error Go to the Carrier Drive Service Check on page 2 14 Diagnostic Information 2 3 4227 X00 Symptom Table 1 Select the symptom that best describes the problem 2 Perform the appropriate action before you go to the indicated service check Abnormal Indications Symptom Action All LEDs turn on but do not turn off The Power LED is on but POST will not run Disconnect the interface cable from the printer and turn the printer off and then on If POST now runs correctly the problem is in the computer or interface cable Go to the POST Service Check on page 2 24 Abnormal Print Operation Problems Symptom Action Printer will not print or become Ready Abnormal operation incorrect characters or incorrect line width Printer is ready but will not print from the computer correctly Undefined or incorrect characters Be sure the interface cable is connected properly Go to the No Print or Abnormal Print Service Check on page 2 18 2 4 Service Manual 4227 X00 Auto Sheet Feeder Problems Symptom Action Auto sheet feeder will not feed paper Auto sheet feeder double feeds Auto sheet feeder has intermittent feed problems Paper Skews Be sure Auto Sheet Feed is set to On in the Paper Handling Option Menu Be sure the paper select lever is in
52. end of life has been reached have the customer replace the ribbon cartridge 2 16 Service Manual 4227 X00 FRU Symptom Action 4 If the prior The service check has not defined the failure suggestions or the machine is having intermittent failures not corrected the The following may cause undefined or problem intermittent failures 1 Customer s electrical voltage Be sure that it is within the tolerance 2 Loose connector pins or keys that fail to contact Check the following a Reconnect the connectors of all FRUs and printer interface cables b Check the continuity of the line cord 3 Electrical noise Check the following a Power supply ground b Machine frame ground c Printer interface cable is grounded or shielded 4 Undefined data in customer applications Check the baud rate at the controller Check that the printer interface cable matches the printer 5 Problem occurs Perform the Trace Print hexadecimal printing only in specific by the following procedure and check the data customer streams applications 1 Press Menu 2 Press Item T to display Trace Mode 3 Press Start 4 Have the customer print the failing job 5 To stop printing turn the power switch off If the failure still occurs set the Bidirectional Print Adjustment on page 4 4 and the Printhead to Platen Gap Adjustment on page 4 2 Diagnostic Information 2 17 4227 X00
53. ers continue to turn as the paper is fed their drive is disengaged and they are actually being turned by the paper FRU Action 1 Paper Select With the paper select lever in the cut sheet Sensor position do the following Try to load a sheet with Load Unload This button should not work If the paper loads go to the POST Service Check on page 2 24 2 12 Service Manual 4227 X00 FRU Action 2 Paper Feed If the paper does not feed do the following Remove the ASF Be sure the base printer feeds paper correctly If it does not feed paper correctly go to the Paper Feed Service Check on page 2 20 3 Gear Train Be sure the ASF drive gear on the inside of the printer s right frame rotates Inspect the right side gear train for damage or debris Remove the ASF right cover and ensure that all gears are in good condition 4 Combination Lock Install the ASF and press FormFeed Mechanism If the pick drive shaft does not rotate replace the combination lock mechanism 5 Left and Right If the ASF pick rollers rotate but a single sheet Hoppers is not picked inspect the springs and corner separators on the left and right hoppers Make sure the paper load lever is in the correct position 6 Pick Rollers Paper skew can be caused by worn dirty or Paper Guides binding pick and feed rollers Remove the auto Feed Rollers sheet feeder load paper and hand cycle the
54. etects paper jams by the lack of paper movement When the PSet sensor detects EOF it lets printing continue to the bottom of the form When the PE sensor detects no paper it stops print within a few lines The jam sensor stops printing after about 50 mm of no signal change for example if 50 mm of pinfeed is removed from a sheet the sensor stops printing Less than 50 mm will probably be ignored Therefore the paper motion must have stopped for the equivalent of about 12 printed lines to cause a jam If either the PE or the PSet sensor detects no paper during print printing stops at the end of the current page The Tractor 2 option also has PSet and Jam sensors on the left tractor Enter the service menu and perform the sensor tests Replace any failed or damaged sensors 6 Paper Select Sensor Enter the service menu and perform the Sensor Test 2 for Lever Move the paper select lever to test the sensor Replace any sensor if failed or damaged 2 22 Service Manual 4227 X00 FRU Symptom Action 7 Operator Panel If paper does not move at all verify the FormFeed button is working correctly by performing the service menu button test 8 Main Logic Board If no other problem is found replace the logic board Set the Bidirectional Print Adjustment on page 4 4 and Printhead to Platen Gap Adjustment on page 4 2 Diagnostic Information 2 23 4227 X00
55. ice Check on page 2 31 If there is no paper motion disconnect the paper feed motor connector CN10 from the main logic board Check the resistance of pins CN 1 and 6 2 and 5 3 and 6 and 4 and 5 All resistances should be 5 8 0 5 ohms No pin should have continuity to ground 2 20 Service Manual 4227 00 FRU Symptom Action 4 Gear Train and Remove all paper from the machine Paper Feed Motor Press FormFeed several times and examine all rotating parts to find the problem For better visibility remove the covers and reconnect the operator panel to the main logic board The upper and lower feed rollers and the upper and lower pinch rollers should all be clean and in good condition and should all rotate during Form Feed To turn the gear train manually turn the right end of the lower feed roller shaft with a 6 mm wrench Diagnostic Information 2 21 4227 X00 FRU Symptom Action 5 PE Sensor TOF Sensor PSet Sensor Jam Sensor The printer has four sensors in the paper path plus one which detects the position of the paper select lever Enter the service menu and perform the sensor tests PE Sensor rounded flag detects the presence of paper at the platen TOF Sensor sharp flag determines TOF at paper load PSet Sensor paper set detects presence of paper in the tractors and looks for end of forms Jam Sensor senses the holes in the paper and d
56. ide Carefully remove the sensor flag spring 4 from the bottom end of the sensor flag Pivot the upper tip of the sensor flag downward through the open area just to the right of the center feed roll and lift the lower end of the flag until it becomes free The sensor flag spring hooks over the lower arm of the flag Be sure the point of the sensor flag is kept in the paper path by the spring force Be sure the leaf spring is in contact with the lower feed roller shaft OPEN Repair Information 4 25 4227 X00 Paper Feed Motor Removal 1 5 Remove the top cover See Top Cover Removal on page 4 6 Disconnect the paper feed motor connector CN10 from the main logic board Remove the sub logic board Remove the four screws holding the motor in place and remove the motor Remove the double gear from the shaft on the face of the motor Reinstallation Hold the bottom screw in place in the motor bracket with the screwdriver This screw is difficult to reach once the motor is in place Paper Guide Removal 1 2 Remove the front cover and place it front down a flat surface Pry under the front part of the guide to release the two latches and remove the paper guide Paper Guide Platen Assembly Removal 1 Remove the top cover See Top Cover Removal on page 4 6 Remove the print unit Remove the sub logic card Re
57. ide frame Exit the service menu by pressing Menu Quit Sensor Test 1 Tests PSet Jam amp TOF sensors Sensor Test 2 Tests Paper Select Gap Home and Cover sensors These tests display an underline _ if the sensor is open or a block if the sensor is blocked Use paper tools or fingers to block and unblock the sensors to verify that each is functional Return to the Service Menu by pressing Menu Quit Button Test Pressing each operator panel button causes the alarm to beep Pressing multiple buttons simultaneously results in no beep Return to the Service Menu by pressing Menu Quit Factory Setting Factory Setting allows the selection of the default page length and code page from U S defaults 11 Code Page 437 Character Set 1 to Non U S defaults 12 Code Page 850 Character Set 2 Printhead Bank This allows the 18 wire printhead to be set to use the left bank only the right bank only or both banks default This allows the printer to continue to print with a damaged printhead or cable Jam PSet Sensor Test Enables or disables the PSet and Jam sensors on the left tractor 3 4 Service Manual 4227 00 Impact Force Impact Force enables the striking force of the printhead pins to be changed Three selections are possible Normal Auto This is the default value Impact force of the printhead pins is adjusted automatically for paper thickness High This is the highest impact force
58. in Mode CN1 1 26 V de CN1 2 26 V de CN1 3 Frame Gnd CN1 4 Not Used CN1 5 5 V dc CN1 6 Motor Common CN1 7 D Set Signal for Tractor 2 Plugged in CN1 8 Signal Gnd CN1 9 Motor Phase A 0 V dc when Tractor 2 not in use 0 V dc when Tractor 2 is in use CN1 10 Motor Phase B 5 V dc when Tractor 2 not in use 0 V dc when Tractor 2 is in use CN1 11 Not used CN1 12 Slider Home Sensor 5 V dc when open 0 V dc when closed CN1 13 Tractor 2 5 V dc when open 0 V dc when closed Connector Locations 5 21 4227 X00 5 22 Service Manual 4227 00 6 Preventive Maintenance This chapter describes procedures for printer preventive maintenance Following these recommendations can help prevent problems and maintain optimum performance Lubrication Warning Petroleum based lubricants can attack polycarbonate parts causing premature failure Use only mineral oil based lubricant The following parts should be lubricated when replaced Oil felt carrier block Tractor unit Side frame left Side frame right Pinch roller lower Pinch roller spring left e Pinch roller spring center Pinch roller spring right Paper separator Specified Lubricants Oil P N 1280443 Approved equivalents Mobil DTE27 Shell Tellus 100 Fuchs Renolin MR30 e Grease P N 6934659 Approved equivalent Mobil 28 Preventive Maintenance 6 1 4227 X00 Lubricatio
59. is light If the ribbon has reached its end of life or is worn the ribbon cartridge needs to be replaced Go to the Auto Gap Service Check on page 2 10 If no problem is found go to the Ribbon Drive Service Check on page 2 30 Uneven print density across the print line Specific dots missing Be sure the printhead cables are connected correctly to the printhead and the sub logic board Clean the printhead Set the Auto Gap to On in the user menus and run the print test If the print is light at one edge and uniformly gets darker across the page to the other edge perform the Printhead to Platen Gap Adjustment on page 4 2 Go to the Print Wire Drive Failure Service Check on page 2 28 Scattered ink smearing blurred characters Fuzzy print Clean the printhead nose Clean the ribbon guide and shield If the ribbon has reached its end of life or is worn the ribbon cartridge needs to be replaced Go to the Print Quality Service Check on page 2 27 2 8 Service Manual 4227 00 Symptom Action Wavy vertical lines uneven left margin or character width is reduced Clean and lubricate the carrier shaft If the carrier drive belt is worn or broken replace the carrier unit Check the Bidirectional Print Adjustment on page 4 4 Go to the Carrier Drive Service Check on page 2 14 Ribbon Feed Problems Symptom Action
60. move the large gear on the left side frame by prying it from behind with a flat blade screwdriver Remove the support shaft screw and the two platen screws from the left side frame Remove the right side frame Remove the paper guide platen assembly 4 26 Service Manual 4227 X00 Paper Select Lever Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Release the latch and then remove the paper select lever from the right side frame Paper Select Sensor Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Remove the print unit See Print Unit Removal on page 4 30 3 Use a 1 Phillips screwdriver to remove the two screws 1 holding the paper select sensor to the left side frame Repair Information 4 27 4227 X00 Paper Separator Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Remove the print unit from the base See Print Unit Removal on page 4 30 3 Remove the paper select lever 4 Remove the gear shaft support plate and the two gears with their springs 1 5 Remove the large screw 2 holding the tension pulley plate to the side frame 4 28 Service Manual 4227 X00 6 Release and remove the separator plate spring 3 from the right side frame 7 Remove the paper separator screw 4 from above the slider cam 8 Remove the two carrier plate screws 5 from the right side frame One is behind the slider c
61. n Points Oil Lubricate the following contact positions Oil Felt on Carrier Shaft under Carrier Square Tractor Shaft where left end enters Left Tractor Side Frame Grease Lubricate the following contact positions Two gear mounting studs on the right side frame e ASF Gear mounting stud on the right gear plate Slider cam and sub slider cam on the right side frame e Mounting stud for large spur gear on left side frame Mounting studs for auto gap gears Lower pinch roller and ground spring Right ASF Side Frame studs and all gears Left ASF Side Frame studs and Upper Feed Roll Shaft ASF Pick up Roller Shaft and L amp Roller Bushings Tractor 2 right side frame studs and all gears 6 2 Service Manual 4227 X00 7 Parts Catalog How to Use This Parts Catalog SIMILAR ASSEMBLIES If two assemblies contain a majority of identical parts they are shown on the same list Common parts are shown by one index number Parts peculiar to one or the other of the assemblies are listed separately and identified by description AR As Required in the Units column indicates that the quantity is not the same for all machines NP Non Procurable in the Units column indicates that the part is non procurable and that the individual parts or the next higher assembly should be ordered NR Not Recommended in the Units column indicates that the part is procurable but not recommended for field replacement and that
62. nd selection Print tests e Auto Gap functions 1 6 Service Manual 4227 X00 Using the Function Menus 7 Menu Tear Off Power Tractor2 Quit Store Ready L Check AutoGap Font Pitch Micro Micro T 4 Item T Next gt Prev Start Load LineFeed FormFeed Stop Unload Use the J and T buttons to move through the menu and option directories Press Next to move away from the Main Menu to the subordinate directories and choices Press Prev lt if you want to go back in a menu or return to the Main Menu General Information 1 7 4227 X00 Setting Printer Functions 1 Press Start Stop 2 Press Menu to enter the function menu 3 Press J or T until the function menu you want appears on the display Note The selectable function menu is different depending on the selected data stream mode IBM PPDS or Epson emulation and the Interface mode Parallel RS 232 RS 422 4 Press Next to enter that menu item 5 Press Item J or Item until the value you want appears on the display 6 Press Store to save the selected value Note The currently selected default value is displayed with an asterisk If you have to change the optional value in another function menu repeat steps 3 through 5 Otherwise go to the next step 7 To print the functi
63. nd the voltages at main logic board CN13 1 The upper right pin at CN13 is pin 1 26 V dc and the pin just beneath it is pin 5 5 V dc If these voltages are not present replace the main logic board 3 Tractor 2 Motor Board Cable Asm Check the following resistances of the Tractor 2 motor windings 101 5 ohms between pins 1 6 3and6 2and5 4 5 If the motor is good replace the board cable assembly For information on the Tractor 2 cable connectors see Tractor 2 Cable Connectors on page 5 21 2 32 Service Manual 4227 X00 Tractor 2 installed but not shown in User Menu Tractor 2 selected from operator panel but printer does not detect Tractor 2 or detects that the Tractor 2 mechanism is not installed Power the printer off and reinstall the Tractor 2 Power the printer on and verify the problem still occurs FRU 1 Tractor 2 Board Cable Asm Action Check the Tractor 2 sensor or the cable connection The sensor actuator extends through the Tractor 2 cover and rests on the printer cover when Tractor 2 is installed Remove the Tractor 2 cover and make sure the sensor opens when the Tractor 2 is installed The voltage at Tractor 2 CN1 13 should be 5 with the sensor open and 0 with it closed Replace the Tractor 2 board cable asm if the sensor signal is wrong For information on the Tractor 2 cable connectors see Tractor 2 Cable Connectors
64. nsion Pulley Plate E Paper Select Lever F TOF Sensor CC Paper Select Sensor J Tractor Unit G Paper Separator H Upper Feed Roller 5 6 Service Manual 4227 X00 Component Location Illustrations Connector Locations 5 7 4227 X00 Component Location Illustrations Continued 5 8 Service Manual 4227 X00 Signal Connections Power Supply gt Main Logic Board lt gt Sub Logic Board Main Logic Board Sub Logic Board S 11 CN1 4227 100 UPP IY CN4 4227 200 40 V dc Pin 1 40 1 40 40 dc Pin2 40 V de Pin 2 40 V de Power Gnd Pin 3 Power Gnd Pin 3 Power Gnd Power Gnd Pin 4 Power Gnd Pin 4 Power Gnd 5 Pin5 5Vde Pin5 5Vde Signal Gnd Pin6 Signal Gnd Pin6 Signal Gnd Main Logic Board lt gt Parallel Interface Cable 4227 100 Main Logic Board CN1 Pin 1 Strobe Pin 19 Signal Gnd Pin 2 Data 1 Pin 20 Signal Gnd Pin 3 Data 2 Pin 21 Signal Gnd Pin 4 Data 3 Pin 22 Signal Gnd Pin 5 Data 4 Pin 23 Signal Gnd Pin 6 Data 5 Pin 24 Signal Gnd Pin 7 Data 6 Pin 25 Signal Gnd Pin 8 Data 7 Pin 26 Signal Gnd Pin 9 Data 8 Pin 27 Signal Gnd Pin 10 Acknlg Pin 28 Signal Gnd Pin 11 Busy Pin 29 Signal Gnd Pin 12 TXD PE Pin 30 Signal Gnd Pin 13 Select Pin 31 RXD INIT Pin 14 RXD AF Pin 32 TXD Error Pin 15 TXD Pin 33 RXD Pin 16 Signal Gnd Pin 34 DTR Pin 17 Chassis Gnd Pin 35 DSR Pin 18 RTS Pin 36 CTS SE
65. o prevent an increase of static electricity from clothing fibers carpets and furniture Put the ESD wrist strap on your wrist Connect the wrist band to the system ground point This discharges any static electricity in your body to the machine Hold the ESD sensitive part by its edge connector shroud cover do not touch its pins If you are removing a pluggable module use the correct tool Do not place the ESD sensitive part on the machine cover or on a metal table if you need to put down the ESD sensitive part for any reason first put it into its special bag Machine covers and metal tables are electrical grounds They increase the risk of damage because they make a discharge path from your body through the ESD sensitive part Large metal objects can be discharge paths without being grounded Prevent ESD sensitive parts from touching other personnel Install machine covers when not working on the machine and do not put unprotected ESD sensitive parts on a table Keep all ESD sensitive parts in a grounded metal cabinet case Low humidity increases static electricity during cold weather Repair Information 4 1 4227 X00 Adjustments Printhead Installation Adjustment 1 Hold the printhead down while pressing it toward the platen and tighten the two printhead mounting screws 2 Check the Printhead to Platen Gap Adjustment on page 4 2 Printhead to Platen Gap Adjustment Perform this adjustment When the pla
66. o the carrier motor shaft Ribbon motor screws should be loosened when reinstalling the carrier motor Tighten the carrier motor screws before you tighten the ribbon motor assembly mounting screws Repair Information 4 15 4227 X00 Carrier Plate Removal 1 oeonpupwm Remove the top cover See Top Cover Removal on page 4 6 Remove the print unit Remove the carrier Remove the lower pinch roller Remove the carrier motor Remove the auto gap motor and its bracket Remove the carrier motor bracket Remove the right side frame Remove the two screws holding the carrier plate to the left side frame and remove the carrier plate Label Jam Removal When a pressure sensitive label separates from its protective backing and jams and sticks to the paper separator below the carrier plate the following procedure should be used to remove the label 1 2 3 Remove the top cover See Upper Feed Roller Removal on page 4 39 Remove the tractor assembly Remove the print unit See Print Unit Removal on page 4 30 Remove the paper separator See Paper Separator Removal on page 4 28 Carefully remove the label from the paper separator If the label is jammed below the carrier plate or on the lower portion of the paper guide platen assembly carefully remove the label without scratching either surface 4 16 Service Manual 4227 X00 Lower Feed Roller Removal 1 Remove the top c
67. oi concebido testado e aprovado para satisfazer os padr es globais de na utilizac o de componentes espec ficos da Lexmark As func es de seguranca de alguns dos componentes podem nao ser sempre bvias A Lexmark n o respons vel pela utiliza o de outros componentes de substitui o As informac es de seguranga relativas a este produto destinam se a profissionais destes servicos nao devem ser utilizadas por outras pessoas Risco de choques el ctricos e ferimentos graves durante a desmontagem e manutenc o deste produto Os profissionais destes servicos devem estar avisados deste facto e tomar os cuidados necess rios xiv Service Manual 4227 X00 Informacio de Seguretat _ Aquest producte esta dissenyat comprovat aprovat tal d acomplir les estrictes normes de seguretat globals amb la utililitzaci de components especifics de Lexmark Les caracter stiques de seguretat d algunes peces pot ser que no sempre siguin bvies Lexmark no es responsabilitza de l us d altres peces de recanvi La informaci pel manteniment d aquest producte est orientada exclusivament a professionals i no est destinada a ning que no ho sigui El risc de xoc el ctric i de danys personals augmentar durant el proc s de desmuntatge i de servei d aquest producte El personal professional ha d estar ne assabentat i prendre les mesures convenients Notices xv 4227 X00 ZEM
68. on setting press Item J or Item 7 until the Print Settings message appears on the display 8 Press Start Stop to print the current setting values 9 Press Quit to exit the function menus Note If you have changed any settings the printer performs a Power On Self Test see Power On Self Test POST on page 3 1 If you did not change any settings the printer enters the not ready state 1 8 Service Manual 4227 X00 Overview of Function Menus Use the Item T and Item J buttons to move through the menu and option directories Press Next to move away from the Main Menu to the subordinate directories and choices Press Prev lt if you want to go back in a menu or return to the Main Menu Menu items marked with an asterisk may not appear on the operator panel depending on the printer settings or what printer options are installed Set Top of Form Press Tractor d Tractor 2 Press Macro x 5 Macro x Default Macro Bode Enabled Macro x Options Disabled Character Opt Press Next Press Next Character Opt Mx Paper H Opt Mx AutoGap Mx Copy Macro x Default Font Pitch Code Page Character Set 20 Pitch Emphasized Character Size Double Wide General Information 1 9 4227 X00 Auto Tear Off Auto Sheet Feed Tractor Auto Cut Sh Ld Form Length Right Margin Bottom
69. oo deep or the main logic board may be damaged Note Be careful not to bend the pins when you re install the module 4 22 Service Manual 4227 X00 Operator Panel Assembly Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Disconnect the ribbon cover sensor connector from the back of the operator panel 3 Disconnect the operator panel cable from the back of the operator panel 4 Push up on the lower latches to free the operator panel from the top cover Paper Empty Sensor TOF Sensor Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Remove the print unit See Print Unit Removal on page 4 30 3 Remove the right screw 1 in the support shaft Repair Information 4 23 4227 X00 4 Paper Empty Sensor a Release the four latches 2 and remove the paper empty sensor b Carefully grasp the paper empty flag with a pair of needle nose pliers and remove the flag by pulling it perpendicularly away from the paper guide Do not damage or lose the paper empty sensor spring 5 Unsnap the TOF sensor from the back of the paper guide using a screwdriver as illustrated 3 4 24 Service Manual 4227 X00 To Replace the TOF Sensor Flag Unless necessary do not replace the sensor flag when replacing the sensor 1 2 With diagonal pliers cut the post and two tabs 5 off as flush as possible Unsnap both ends of the sensor flag from the paper gu
70. orts between neighboring pins Do not replace the printhead unless a specific problem is found 8 Main Logic Board If no other problem is found replace the main logic board retaining the old board for reinstallation if the problem is not fixed Set the Bidirectional Print Adjustment on page 4 4 and the Printhead to Platen Gap Adjustment on page 4 2 Diagnostic Information 2 29 4227 X00 Ribbon Drive Service Check In normal operation the ribbon knob rotates counterclockwise whenever the carrier moves to the left FRU Symptom Action 1 Ribbon Drive Gear Train Remove and inspect the ribbon Make sure the knob turns with even moderate force and the ribbon feeds correctly Inspect the gear train from the ribbon motor to the ribbon drive post Check the Printhead to Platen Gap Adjustment on page 4 2 2 Ribbon Motor If printing seems normal but the ribbon is not moving remove the ribbon and turn power on The ribbon drive post should turn several times during POST Disconnect the ribbon motor connector CN19 from the main logic board The winding resistance should be 118 ohms 5 between pins 1 and 5 3 and 5 2 and 6 4 and 6 Pin 5 should show an open circuit to pins 2 4 and 6 Pin 6 should show an open circuit to pins 1 3 and 5 2 30 Service Manual 4227 X00 Tractor 2 Service Check The Tractor 2 sensor opens during installation when
71. otor Cable 1 CN10 Paper Feed Motor CN11 Power Supply CN13 Tractor 2 DIN CN14 Operator Panel CN15 Carrier Motor Cable 2 CN17 Carrier Motor Cooling Fan 4227 200 CN18 Tractor PSet amp Jam Sensors CN19 Ribbon Motor CN20 Auto Gap Motor CN22 Serial Port 4227 200 CN23 Serial Interface 5 V dc Power 4227 200 Connector Locations 5 3 4227 X00 4227 100 Sub Logic Board Connectors CN1 Power Supply CN2 Main Logic Board Flex Cable CN3 Printhead CN4 Printhead 5 4 Service Manual 4227 00 4227 200 1 Printhead CN2 Printhead CN3 Main Logic Board Flex Cable CN4 Power Supply Operator Panel Connectors CN1 Ribbon Cover Sensor CN2 LCD Board soldered CN3 Main Logic Board Connector Locations 5 5 4227 X00 Component Locations This chapter shows the location of specific parts of the printer Part Name Ref Part Name Ref Auto Gap Motor W Parallel Serial Interface Y Connector Auto Gap Sensor V Platen B Carrier P Power Supply BB Carrier Motor K Printhead Q Carrier Plate Printhead Cables Jam Sensor R PSet Sensor 5 Left Side Frame L Ribbon Drive Motor U Lower Feed Roller M Ribbon Drive Post T Lower Pinch Roller N Right Side Frame D Main Logic Board AA RS232 RS422 Switch Z Paper Empty Sensor DD Sub Logic Board A Paper Feed Motor X Te
72. over See Top Cover Removal on page 4 6 Remove the print unit Remove the sub logic board Remove the paper feed motor Remove the large gear from the left side frame by prying it from behind with a flat blade screwdriver Remove the support bracket 1 from the back of the platen Remove the paper select lever oR N Repair Information 4 17 4227 X00 8 Remove the gear shaft support plate 2 and the two gears with their springs 3 9 Remove the large screw 4 holding the tension pulley plate to the side frame 10 Remove the gear clip and bearing 5 from the end of the lower feed roller shaft 4 18 Service Manual 4227 X00 11 Release and remove the separator plate spring 6 12 Release the spring 7 from the right end of the lower pinch roller 13 Remove the two carrier plate screws 8 One is in the slot in the slider cam 14 Remove the support shaft screw 9 Repair Information 4 19 4227 X00 15 Remove the two platen screws 10 16 Remove the right side frame 17 Remove the lower feed roller shaft Note The upper feed roller bearing should stay in the side frame The lower pinch roller bushing is free on the end of the shaft Reassembly 1 Remove the paper separator while first installing the side frame loosely Make sure the lower pinch roller spring is above the bushing 2 Remove the screw from the right end of the paper separator
73. per alignment 10 Press Quit to exit the menu Repair Information 4 5 4227 X00 Removal Procedures Use the following procedures to remove and replace individual FRUs Top Cover Removal CAUTION Be sure to unplug the power cord whenever you are working on the printer with any of the covers removed 1 Turn the printer off 2 Disconnect the power cord and parallel cable at the printer 3 Remove the front cover 1 4 Remove the acoustic and ribbon access covers 2 5 Set the paper select lever to the cut sheet position 6 There are two screws 3 and six latches 4 securing the top cover to the bottom cover Remove the two top cover 3 mounting screws 4 6 Service Manual 4227 X00 7 Place the printer on its left side Insert a flat blade screwdriver into the two slots 4 and release the cover by prying down on the left side latches and up on the top cover 8 Place the printer on its right side and release the two right side latches 9 Place the printer on its feet and release the remaining two top cover latches 10 While lifting the top cover slightly disconnect the operator panel cable from the main logic board and then remove the top cover Reinstallation Be sure that the operator panel cable is correctly aligned and inserted securely WARNING Damage to the operator panel cable may cause failure of other electrical components of the printer Be sure not to crimp or pinch this ca
74. print if the printer is always used with a single type of paper With Auto Gap Off the gap can be set to Manual Position 1 thinnest paper to 7 thickest paper With Auto Gap Off Single Auto Gap has two selections Fixed the printhead gap is never changed e Open the gap is opened when loading forms Note If there is a 63C Auto Gap Error the gap home sensor did not detect that the carrier shaft homed or detected that the carrier shaft homed at the wrong time FRU Action 1 Auto Gap Sensor Inspect the gap home flag on the end of the carrier shaft and make sure it blocks the sensor when the gap is at its largest Power up the printer and watch the carrier shaft and the gap home flag If the shaft rotates before the error occurs the sensor may have failed Perform the Sensor 2 Test in the Service Menu and test the gap home sensor 2 Auto Gap Motor If the carrier shaft does not rotate look for an Gear Train auto gap motor or auto gap gear train problem Disconnect CN20 from the main logic board Check the resistance of pins 1 5 2and6 3 5 4 6 resistances should be 180 5 ohms No pin should have continuity to ground If there is 63C Auto Gap Error but there is a gap problem light print or no print or paper catching on the printhead or ribbon shield enter the user menus to make sure the gap settings are appropriate for the paper being used If Auto Gap is Off Man
75. reinstalling the sub logic board Remember to reconnect the ground lead to the bottom mounting screw 4 38 Service Manual 4227 X00 Upper Feed Roller Removal 1 Remove the top cover See Top Cover Removal on page 4 6 2 Release the latches and remove the gear 1 from the left end of the shaft 3 Remove the clip from the left end 4 Slide the shaft to the left making sure the right bearing comes out of the side frame with the shaft 5 Lift the shaft out to the right Be sure not to lose the bearings they are both free to come off the shaft Repair Information 4 39 4227 X00 4 40 Service Manual 4227 X00 5 Connector Locations 4227 100 Connector Locations 5 1 4227 X00 4227 200 Iw 5 2 Service Manual 4227 00 Main Logic Board Connectors CN1 Parallel Serial Port CN3 Sub Logic Board Flex Cable CN4 Paper Select Sensor CN7 Paper Empty and TOF Sensors CN8 Gap Home Sensor 9 Carrier M
76. s If the resistance is incorrect replace the printhead 63E Head Thermal Error The printer has stopped to protect the printhead from overheating Normally this occurs after several hours of continuous heavy use in a warm environment and only then after going through several stages of thermal slowdown Wait for the machine to cool and see if the error goes away If the machine was not being used heavily before the error occurred or if the error returns when the machine is cool replace the printhead 2 28 Service Manual 4227 X00 FRU Symptom Action 3 Auto Gap If printhead is firing manually rotate the carrier shaft during printing by pushing down on the auto gap home sensor flag If printing starts and is correct go to the Auto Gap Service Check on page 2 10 4 Printhead Cables Inspect for improper connection or damage 5 Sub Logic Board If there is carrier motion but no printhead noise and the printhead cables do not appear to be the problem replace the sub logic board 6 Ribbon A problem with the ribbon shield can keep the print wires too far from the page Inspect the ribbon shield When the printer is Ready with the ribbon installed make sure the ribbon shield can float slightly front to back 7 Printhead The printhead probably is not the problem if there is no printing Check the winding resistances as described above and look for open circuits or sh
77. set the Bidirectional Print Adjustment on page 4 4 and the Printhead to Platen Gap Adjustment on page 4 2 Diagnostic Information 2 15 4227 X00 FRU Symptom Action 2 Machine power sometimes turns off The cause of this problem may be that the power circuit is failing or the wiring is intermittently open Check the following in sequence 1 Check the electrical voltage and be sure it is within tolerance 2 Check the continuity of the power cord 3 Disconnect the power supply cable from the connectors CN11 on the main logic board and CN1 on the sub logic board Turn the printer power on and check all dc output voltages at CN11 and CN1 Be sure the output voltages are as follows CN11 1 40 4 Vdc amp CN11 3 GND CN11 2 40 4 amp CN11 3 GND 11 5 5 0 5 amp 11 6 Signal GND 40 4 V dc 8 CN1 3 GND CN 1 1 1 2 40 4 V dc amp CN1 3 GND CN 1 5 5 0 5 V dc amp CN1 6 Signal GND If one of the voltages is 0 go to the Power Failure Service Check on page 2 25 If the voltages are not 0 but are incorrect replace the power supply unit 3 Intermittently poor print quality Do the following Remove paper jams from the paper path Clean all feed roller surfaces Clean the ribbon shield and printhead Clean the platen surface Install the ribbon cartridge correctly If the ribbon
78. t et approuv pour respecter les normes strictes de s curit globale lors de l utilisation de composants Lexmark sp cifiques Les caract ristiques de s curit de certains l ments ne sont pas toujours videntes Lexmark ne peut tre tenu responsable de l utilisation d autres pi ces de rechange Les consignes d entretien et de r paration de ce produit s adressent uniquement un personnel de maintenance qualifi Le d montage et l entretien de ce produit pouvant pr senter certains risques lectriques le personnel d entretien qualifi devra prendre toutes les pr cautions n cessaires xii Service Manual 4227 00 di sicurezza prodotto stato progettato testato e approvato in conformit a severi standard di sicurezza e per l utilizzo con componenti Lexmark specifici Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione Lexmark non responsabile per l utilizzo di parti di ricambio di altri produttori Le informazioni riguardanti la manutenzione di questo prodotto sono indirizzate soltanto al personale di assistenza autorizzato Durante lo smontaggio e la manutenzione di questo prodotto il rischio di subire scosse elettriche e danni alla persona elevato Il personale di assistenza autorizzato deve quindi adottare le precauzioni necessarie Sicherheitshinweise Dieses Produkt und die zugeh rigen Komponenten wurden entworfen un
79. ten printhead carrier carrier shaft or main logic board is removed or replaced e When the print density varies across the page There are two adjustments to this procedure Printhead to Platen Gap Left and Right Turn the power off Remove the top cover Remove the ribbon Position the carrier to the left Using a 014 inch 35 mm feeler gauge as the Go gauge and a 016 inch 40 mm feeler gauge as the No Go gauge rotate the carrier shaft and measure the printhead to platen gap Position the carrier to the right 7 Adjust the carrier shaft bearing on the right side frame so the right gap matches the left gap 4 2 Service Manual 4227 00 Printhead to Platen Gap Electronic Setting Be sure there is no paper in the printer 1 Install a ribbon 2 Hold down FormFeed and power on the printer 3 Remove the ribbon guide 4 Measure the printhead to platen gap The gap specification is 4227 100 between 013 inch 33 mm and 0165 inch 42 mm 4227 200 between 011 inch 275 mm and 015 inch 375 mm 5 Use the Micro or Micro to change the Pos setting The Micro button will increase the clearance and the Micro button will decrease the clearance 6 Install the ribbon guide 7 Press Start Stop to reset the gap to the new Pos setting 8 Remove the ribbon guide and check the setting with a feeler gauge 9 Repeat steps 5 through 8 until the g
80. the cut sheet position Go to the Auto Gap Service Check on page 2 10 Isolate the problem by removing the auto sheet feeder and feeding paper using the manual feed tray Go to the Auto Sheet Feeder ASF Service Check on page 2 12 6XX Error Indications Symptom Action 6XX Machine Check is displayed Turn the printer off and then on Go to Error Indication Table on page 2 2 Paper Feed Problems Symptom Action Paper Empty Add Paper is displayed with paper in the printer Print operation starts without paper Be sure the paper empty sensor is not blocked There may be a problem with the paper select sensor Go to the Paper Feed Service Check on page 2 20 Diagnostic Information 2 5 4227 X00 Symptom Action Load Unload does not function Form feed length is not correct Load Unload functions with cut sheets in use Be sure the paper select lever is in the correct position There may be a problem with the paper select sensor Go to the Paper Feed Service Check on page 2 20 Paper feeds but Auto Loading does not work Be sure the paper select lever is in the cut sheet position Be sure Auto Cut Sheet is enabled in the Paper Handling Option Menu Go to the Paper Feed Service Check on page 2 20 Lower feed roll shaft rotates but paper does not feed Pressing Form Feed does not feed
81. ting the Tractor 2 with the printer cover removed the Tractor 2 sensor must be held open Turn the printer on and look for mechanical problems For information on the Tractor 2 cable connectors see Tractor 2 Cable Connectors on page 5 21 4227 X00 3 Diagnostic Aids The printer contains self tests to help find and solve problems You need not connect the printer to a computer or terminal to run these tests Types of self tests are as follows Power On Self Test POST Hex Trace Mode a computer or terminal is needed Print Tests Error Log Power On Self Test POST The Power On Self Tests diagnose the basic hardware printer functions and initialize the default value settings POST starts automatically when power to the printer is turned on or when the printer receives an INIT signal from the controller Power supply fan turns on LED Test All LEDs turn on briefly LCD Test All pels of the display are activated twice then initialize is displayed RAM Test Checks that the CPU can write read the RAM ROM Test Checks that the ROM data is correct Timer Interrupt Controller Test Checks this function is working Button Scan Test Scans all operator panel buttons NVRAM Test Checks that the NVRAM data is correct Ribbon motor feeds ribbon Carrier moves to the left side frame and back to the right Auto Gap sequence occurs If any errors occur during the POST tests an error indicator shows whi
82. ts Catalog 7 15 4227 X00 7 16 Service Manual 4227 X00 Index A Abbreviations 1 5 Adjustments 4 2 Bidirectional Print 4 4 Printhead to Platen 4 2 ASF Principles of Operation 2 12 Bidirectional Print Adjustment 4 4 Buttons 1 11 C Component Locations 5 6 Connector Locations 5 1 5 7 5 8 5 9 Connectors Illustrations 5 7 5 8 Main Logic Board 5 3 Operator Panel 5 5 Sub Logic Board 5 4 D Diagnostic Aids 3 1 Button Test 3 4 Error Log 3 6 Factory Setting 3 4 Hex Trace Mode 3 2 Impact Force 3 5 Interface Selection 3 3 Jam PSet Sensor Test 3 4 Log Clear 3 5 Other Print Tests 3 5 POST 3 1 Print Test 3 5 Printhead Bank Test 3 4 Service Menu 3 4 E ESD sensitive parts 4 1 F Function Menus 1 7 L Lights 1 12 Lubricants 6 1 Lubrication 6 1 Lubrication Points 6 2 Models available 1 1 Operator Panel Using 1 6 Options 1 4 Parts ASF Roller Support 7 12 ASF Side Frame Covers 7 10 Base 7 8 Carrier 7 6 Covers 7 2 Electronics 7 8 Operator Panel 7 2 Paper Feed 7 4 Tractor 2 Option 7 14 Parts Catalog How to use 7 1 Power On Self Test POST 3 1 Preventive Maintenance 6 1 Lubrication 6 1 Lubrication Points 6 2 Specified Lubricants 6 1 R Removal Procedures 4 6 Removals ASF Gears 4 9 ASF Pick up Roller 4 10 Auto Gap Motor 4 8 Carrier 4 12 Carrier Motor Assembly 4 15 Carrier Plate 4 16 Jammed Label 4 16 Label Jam 4 16 Lower Feed Roller 4 17 Main Logic Board 4 22 4227 X
83. ual Position 1 should be used only with single part 16 Ib 20 Ib forms Refer the customer to the user s guide for the appropriate Manual Position settings Diagnostic Information 2 11 4227 X00 Auto Sheet Feeder ASF Service Check Auto Sheet Feeder Principles of Operation The auto sheet feeder ASF feeds into the cut sheet paper entry throat To use the ASF The paper select lever must be set to cut sheet e Auto Sheet Feeder must be selected in the display menu Continuous forms can be used with the ASF installed by moving the paper select lever to continuous forms and pressing Start to feed the continuous forms to the first print line The ASF contains no electrical parts It is driven from the gear on the inside of the printer s right side frame The combination lock mechanism is a clutch that causes the ASF pick rollers to feed only one sheet of paper at a time When Auto Sheet Feeder is selected on the Paper Handling Options Menu the cut sheet paper drive reverses itself for a short distance during paper loading This engages the clutch and engages the paper pick rollers which feed the top sheet from the cut sheet paper stack The sheet is fed about 5 inches 125 mm and the paper path briefly reverses again this disengages the clutch and the pick rollers The sheet is then fed to the print line by the ASF s upper and lower feed rollers and the printer s lower feed rollers Although the ASF pick roll
84. ute whatever information you supply in any way it believes appropriate without incurring any obligation to you 1 Did you find the book well organized Yes I No O 2 Was the content the book accurate and complete Yes I No O 3 Was the book easy to use Yes I No O 4 What can we do to improve the book 5 What is your job title Questions or comments about supplies service applications and so on slow response time considerably Please refer those questions or comments to your authorized dealer or point of purchase Note Please direct all requests for copies of publications to your point of purchase Publications are not stocked at the location to which this form is addressed NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 2659 LEXINGTON KY POSTAGE WILL BE PAID BY ADDRESSEE LEXMARK INTERNATIONAL INC DEPARTMENT D22A BUILDING 035 3 740 NEW CIRCLE ROAD NW LEXINGTON KY 40511 9954 Fold Here Tape Please Do Not Staple Tape eur Buoy
85. ve and Gear Plate Assembly 9 11A6221 Plate Assembly Belt Tension Pulley 10 11A6227 Motor Auto Gap 4227 100 10 12G0220 Motor Auto Gap 4227 200 11 79F4832 Roller Lower Pinch 12 11A6258 Spring Parts Packet 13 11A6226 Bracket Carrier Motor 4227 100 13 12G0230 Bracket Carrier Motor 4227 200 14 11A6225 Motor Carrier Assembly 4227 100 14 12G0231 Motor Carrier Assembly 4227 200 15 11A6219 Cable Printhead and Retainer 4227 100 15 12G0225 Cable Printhead and Retainer 4227 200 16 11A3310 Cam Release Slider 17 11A3311 Cam Sub Slider 18 11A6218 Printhead 4227 100 18 12G0224 Printhead 4227 200 19 11A6224 Roller and Spring Carrier 20 11A6222 Carrier Asm with Belt amp Oil Felt 4227 100 20 12G0232 Carrier Asm with Belt amp Head Cooling Gum 4227 200 21 11A6223 Shaft Carrier 22 11A6228 Lever Paper Select 23 11A6214 Gear Plate Right 24 11A6217 Cable Sub Logic Board 4227 100 24 12G0215 Cable Sub Logic Board 4227 200 25 12G0210 Main Logic Card Dust Cover NS 11A6202 Gear Cover Left Parts Catalog 7 7 4227 X00 Assembly 4 Base and Electronics 7 8 Service Manual 4227 X00 ae oe Description 4 1 11A6246 Main Logic Board without ROM LV 4227 100 1 12G0217 Main Logic Board without ROM LV 4227 200 11A6247 Main Logic Board without ROM HV 4227 100 12G0216 Main Logic Board without ROM HV 4227 200 1
86. y along with the ability to print several print styles and graphics Some of the features and functions included with this printer are Feature Function Multi speed Printing FastDraft 533 cps 4227 100 Draft 400 cps 4227 100 Courier and Gothic NLQ 100 cps 4227 100 FastDraft 720 cps 4227 200 Draft 600 cps 4227 200 Courier and Gothic NLQ 150 cps 4227 200 Resident Fonts FastDraft Draft Courier and Gothic Forms Handling Cut Sheets Forms straight paper path Automatic tear off Automatic paper loading unloading Manual Optional Auto Sheet Feeder Multiple Part Forms Interface Connection 6 Part Forms carbon and carbonless 4227 200 up to 8 Part Forms Parallel Serial RS 422 Serial RS 232 Auto Gap When Auto Gap is set to On the printer automatically adjusts to the thickness of paper you are using 1 2 Service Manual 4227 X00 Voltage Ground and Continuity Readings Voltage Readings All DC voltages must be within 5 through 10 of the values to be considered correct Unless stated otherwise all connectors should be connected normally when a voltage measurement is done When a Line Voltage measurement is to be done the voltage on United States and Canada machines should be between 100 V ac and 127 V ac On World Trade machines the voltage is according to each country s specification Ground Checks To check for a

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