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Epson U675 - TM Color Dot-matrix Printer, Service Manual

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Epson U675 - TM Color Dot-matrix Printer Service Manual Download Page 21

Rev.D

Troubleshooting   1-9

TM-U675/U675P (with autocutter) Service Manual

Confidential

Troubleshooting Using the ERROR LED 

You can learn the cause of a failure by checking the ERROR LED code.   The following table 
shows problems and solutions to repair the printer.  Numbers in the "Solutions" column indicate 
the order to use to check the problem.  If you cannot determine the cause of the problem after 
checking all the solutions listed, go back to the flowchart given earlier in this chapter.

Table1-2 Error causes and solutions

Type of Error and ERROR LED Pattern

Explanation

Solutions 
(Listed in the order you should use to check printer)

Autocutter Error

An autocutter error 
was detected.

1. Check for paper jams around the autocutter.  (See 

page 1-19.)

2. Check the cutter motor assembly. (See page 1-11.)  
    If there has been a short in the cutter motor 

assembly, replace the main circuit board unit at 
the same time.  (See page 2-96.)

3. Replace the main circuit board unit and see if the 

problem is fixed. (See page 2-96.)  

    If the printer is repaired, refer to Test Points on the 

Main Circuit Board Unit (See page 1-12.) to analyze 
the defective areas on the board.

Carriage home position detection 
error

The head carriage 
home position was 
not correctly 
detected.

1. Check the carriage assembly for a paper jam. 

(To remove the carriage cover, see page 1-16.)

2. Check for paper dust on the H.P. detector 

assembly.  (To remove the carriage cover, see 
page 1-16.)

3. Replace the H.P. detector assembly. (See page 2-

22.)

Carriage out-of-step error

There is no carriage 
detector output 
even when the 
carriage is 
instructed to move.

1. Check the carriage assembly for a paper jam. 

 (To remove the carriage cover, see page 1-16.)

2. Check the rotary encoder on the carriage motor 

gear used to detect carriage position (The rotary 
encoder is on the intermediate circuit board 
assembly. You need to disassemble the 
intermediate circuit board assembly to check the 
encoder. To remove the intermediate circuit 
board assembly, see page 2-22.)

3. Check the carriage motor.  (See page 1-11.) 

If the motor is shorted, replace it along with the 
main board.

4. Replace the main circuit board unit and see if the 

problem is fixed. (See page 2-96)  

Slip eject error

The slip paper was 
not ejected 
normally.

1. Look into the printer from the left side to check for 

a paper jam in the slip paper transport path.

2. Check the paper feed motor.  (See page 1-11)

If the motor is shorted, replace it along with the 
main board.

3. Try installing a new main circuit board unit to see if 

the printer is fixed.    (See page 2-96)

320ms

5120ms

LED ON

Summary of Contents for U675 - TM Color Dot-matrix Printer

Page 1: ...Confidential Service manual TM U675 U675P with autocutter English 401239103 Rev D Issued Date Issued by EPSON ...

Page 2: ......

Page 3: ...r change To meet the EMC requirements H The explanation for the Appendix H is moved to the other text tm u675ac_eng_sm_revC Reason for change To cut the data capacity of the manual per one text by dividing the manual between two texts Rev D 2 24 Added the information how to solder the cables carriage motor cable Reason for change To use the parts in common with other models 2 93 Added the informat...

Page 4: ...Confidential ii Revision Table ...

Page 5: ...ce on the information in the document You may not reproduce store or transmit the confidential information in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Seiko Epson Your obligations under this Agreement are in addition to any other legal obligations Seiko Epson does not waive any right under this Agreement by failing t...

Page 6: ...1 7 Troubleshooting Using the ERROR LED 1 9 Test Points on the Printer Mechanism 1 11 Test Points on the Main Circuit Board Unit 1 12 Locations of the Main Elements on the Main Circuit Board Unit 1 14 Procedures for Replacing the Print Head Unit 1 15 Removing Paper Jams 1 19 Paper Jams in the Autocutter 1 19 Paper Jams in the Roll Paper 1 19 Paper Jams in the Slip Paper 1 20 Detector Functions and...

Page 7: ...D 15 Slip Feed Mechanism D 25 Validation Mechanism D 29 Ribbon Feed Mechanism D 29 MICR Mechanism Factory Option D 31 Cutter Mechanism D 34 Autocutter Mechanism D 34 Drive Mechanism D 35 Cutter Blade Mechanism D 36 Clutch Mechanism D 36 Autocutter Operation D 36 Cutter Blade Knobs D 37 Emergency Cutter D 38 Outline of Circuits D 39 Connection of Units D 39 Circuit Block Diagram D 40 Memory Circuit...

Page 8: ...sembly with MICR G 4 Frame Assembly without MICR G 5 Frame Assembly with MICR G 6 Carriage Assembly G 7 PF Assembly G 8 MICR Unit G 9 Appendix I Printer Handling Using the Power Switch Cover I 1 Opening the Front Cover I 2 Opening and Closing the Roll Paper Cover I 2 Opening the Roll Paper Cover I 2 Closing the Roll Paper Cover I 3 Installing or Replacing the Paper Roll I 3 Removing Paper I 7 Inst...

Page 9: ...n an accessible location WARNING Shut down your equipment immediately if it produces smoke a strange odor or unusual noise Continued use may lead to fire or electric shock Immediately unplug the equipment Only disassemble this product as described in this manual Do not make modifications to the unit Tampering with this product may result in injury fire or electric shock Be sure to use the specifie...

Page 10: ...y or dust levels Excessive humidity and dust may cause equipment damage fire or shock Do not place heavy objects on top of this product Never stand or lean on this product Equipment may fall or collapse causing breakage and possible injury To ensure safety please unplug this product prior to leaving it unused for an extended period Do not touch the print head or the paper feed motor Wait for the h...

Page 11: ...Do not touch the circuit board or cable terminals with your hands to prevent contamination that may result in a malfunction Do not use an alcohol benzine thinner trichloroethylene or ketone based solvent to clean the parts This type of solvent may damage the plastic and rubber parts Wipe off any dirt with a dry or slightly moist cloth Be sure to remove the power cord from the outlet at this time N...

Page 12: ...icants required to perform maintenance and repair Appendix B Maintenance Describes required procedures to perform maintenance and inspection Appendix C Installation Describes installation procedures Appendix D Product Overview Provides reference information for maintenance and inspection Appendix E Parts List Contains a list of spare parts Appendix F Exploded Diagrams Disassembly diagrams for the ...

Page 13: ...ions This explains how to find the source of a problem using the symptom The numbers in the Solutions column indicate the order to use to check the problem If you cannot determine the cause of the problem after checking the first item proceed to the next number Table1 1 Symptoms and Checkpoint Symptom Checkpoints by Priority Power does not turn on Power on self check is not completed Or POWER LED ...

Page 14: ...lure 1 Check that the roll paper is inserted correctly See page I 3 2 Check that the take up assembly is installed correctly into the printer See page I 6 3 Check that the take up belt is attached correctly See page 2 112 4 Check the paper feed motor See page 1 11 5 Check the J S change solenoid See page 1 11 6 Replace the main circuit board See page 2 96 The printer won t recognize when slip pape...

Page 15: ... 2 Replace the MICR head See page 2 9 3 Replace the MICR fixing and MICR fixing sheet See page 2 10 4 Replace the MICR solenoid See page 2 12 5 Replace the main circuit board unit See page 2 96 Missing characters misprinted characters font breakdown 1 Check the settings of the DIP switches See page D 73 2 Replace the interface cable See page C 1 ERROR LED is lit When it is flashing see page 1 9 1 ...

Page 16: ...sually Opening and Closing the Platen The printer opens and closes the platen once Check this operation with the front cover opened Figure 1 1 Opening and closing the platen Detecting the Head Carriage Home Position The head carriage on a dot impact printer moves to the left side home position once and then to the right side before stopping Check this operation with the front cover opened Figure 1...

Page 17: ...ting 1 5 TM U675 U675P with autocutter Service Manual Confidential Feeding Roll Paper Roll paper is fed 1 to 2 mm You cannot see this if the roll paper is not inserted Figure 1 3 Feeding roll paper check for paper feed ...

Page 18: ... validation paper wait status In this state printing begins on the validation paper when you insert validation paper Test Wait Mode Roll paper self test After the test print is completed the printer enters the self test wait mode The PAPER OUT LED flashes after printing SELF TEST printing Please press PAPER FEED button Test printing starts when you press the receipt paper FEED button Slip paper se...

Page 19: ...utton seven times 6 Close the roll paper cover 7 The following message is printed on the roll paper The SLIP LED flashes 8 Insert check paper into the printer Insert so that the MICR characters are facing upward on one side of the paper insertion slot The printer will run a test to read the check 9 After reading is completed remove the check The printer prints the check data on the roll paper RECO...

Page 20: ...k was read correctly You can continue running the test by inserting more checks 11 When you have finished the test turn off the power supply to the printer Example Printing With CMC7 Font Check Paper Data that was read lower line 0000066 123456789012 210987654321 ...

Page 21: ...on error The head carriage home position was not correctly detected 1 Check the carriage assembly for a paper jam To remove the carriage cover see page 1 16 2 Check for paper dust on the H P detector assembly To remove the carriage cover see page 1 16 3 Replace the H P detector assembly See page 2 22 Carriage out of step error There is no carriage detector output even when the carriage is instruct...

Page 22: ... 1 Check if the printer is repaired after replacing the print head unit See page 1 15 2 Check the resistance of the lever drive motor assembly See page 1 11 Replace if shorted 3 Check if the printer is repaired after replacing the lever motor T P detector assembly See page 2 78 4 Check if the printer is repaired after replacing the main circuit board unit See page 2 96 Head high temperature error ...

Page 23: ...rcuit board unit and test between pin 26 and pin 28 Approx 70 Ω Carriage motor 4 phase stepping motor Head carriage drive Remove the cable connector connected to CN30 on the main circuit board unit and test between pin 1 and pin 2 and between pin 3 and pin 4 Approx 4 5 Ω per 1 phase Lever drive motor assembly DC brush motor Form stopper operation Slip paper roller sub operation Platen open and clo...

Page 24: ... the power supply is ON 24 V 10 It is possible that the problem is pre arcing of the R3 fuse The fuse may have pre arced because of a problem in the logic power supply circuit or because of a VCC over voltage If pre arcing of the R3 fuse happens do not repair the main circuit board unit The quality of several parts on the circuit board is weakened by pre arcing of the R3 fuse and safe operation ca...

Page 25: ...e 24C Located near Q29 base Output when Q46 C is 0 24V SW1 H 24 V 10 It is possible that the problem is pre arcing of the F2 fuse The fuse may have pre arced because of a defect in the 24V line circuit elements If pre arcing of the F2 fuse happens do not repair the main circuit board unit The quality of several parts on the circuit board is weakened by pre arcing of the F2 fuse and safe operation ...

Page 26: ...he main circuit board unit Figure 1 4 Locations of the main elements on the main circuit board unit Fuse F1 Fuse F2 Rear side Fuse F4 Fuse R3 CPU U3 Gate array U30 under the memory board Carriage motor controller U14 Slip paper feed motor controller U17 Impact dot head drivers QM8 Impact dot head drivers QM6 Memory board Font ROM U513 Program ROM U508 SRAM U509 ...

Page 27: ...printer Remove the power supply unit from the printer 2 Open the printer front cover and remove the ribbon cartridge Figure 1 5 Removing the ribbon cartridge 3 Pull the cable connector out of the slit in the case Figure 1 6 Pulling the cable connector out When you are reattaching the cable arrange the cable wires as shown below Figure 1 7 Arranging the cable wires ...

Page 28: ...e the carriage cover frame assembly Figure 1 8 Removing the carriage cover frame assembly When you are reattaching the frame insert the tooth on the left side into the shaft and align the nib on the right side with the nib hole Figure 1 9 Tooth and nib screw screw tooth nib ...

Page 29: ...t head unit flexible plastic cable FPC from the connector Figure 1 10 Removing the print head unit FPC 6 Remove the screw and remove the print head unit Figure 1 11 Removing the print head unit When attaching pass the print head unit FPC through the slit in the head carriage and attach below the two nibs Figure 1 12 Slit and two nibs two nibs slit ...

Page 30: ...ose guide from the print head unit Figure 1 13 Removing the nose guide 8 To reinstall the print head reverse the procedures you used to remove it When reinstalling affix the head seal to the print head unit Figure 1 14 nose guide print head unit head seal ...

Page 31: ...e roll paper cover 2 Rotate the knob on the autocutter in the direction of the arrow to align the axis with the circular hole marked with a triangular hole in the center of the arc shaped slit 3 Remove the paper Figure 1 15 Paper Jams in the Roll Paper 1 Pull the latch lever to the front and open the roll paper cover 2 Remove the take up assembly 3 Open the clamshell mechanism while pushing on the...

Page 32: ...r to the printer is turned ON If it is not ON turn it ON 2 If the slip paper does not release press the RELEASE button to free the slip paper 3 Remove paper from the paper insertion side If you cannot remove the paper from the paper insertion side or paper is cut partially while you are removing it follow the directions in the previous section entitled Paper Jams in the Roll Paper to open the clam...

Page 33: ... detection mechanism Roll paper detection Roll paper near end detection mechanism Roll paper detection Validation detector mechanism Validation paper detection Lever motor T P detection mechanism Lever drive motor timing signal detection Front cover detection mechanism Front cover open closed status detection Rear cover detection mechanism Detects the open close status of the rear cover Autocutter...

Page 34: ...1 22 Troubleshooting Rev D Confidential ...

Page 35: ... the power supply still attached Remove all peripheral equipment connected to the printer before starting your work Do not perform any work that is not described in this chapter Doing so can result in injuries or damage to the printer Do not touch the FPC or the FFC pins with your hands About this Chapter Procedures This chapter provides the procedures for assembling Reverse them to disassemble th...

Page 36: ... Mechanism Assembly M U675 Pre assembly Procedures Pre assembly of the Validation Detector Assembly 1 Solder lead wires S T R to the validation circuit board Figure 2 1 697 Validation detector assembly 757 Lead wire type R 758 Lead wire type S 759 Lead wire type T ...

Page 37: ...Slip B O F Detector Assembly 1 Solder lead wires C D E to the slip B O F detector assembly 2 Insert the slip B O F detector assembly into the slip insertion detector holder Figure 2 2 606 Slip insertion detector holder 696 Slip B O F detector assembly 742 Lead wire type C 743 Lead wire type D 744 Lead wire type E ...

Page 38: ...springs onto the lever coil mounting plate sub assembly and paper feed trigger attraction plate One side of the hook on the paper feed trigger claw spring is single and the other side is double Attach the double side onto the paper feed trigger attraction plate 4 Lubricate the areas where the paper feed trigger attraction plate contacts other parts eight places Figure 2 3 G 36 G 36 G 36 732 Paper ...

Page 39: ...or gear into the hole in the motor shield case Check that the motor printed circuit board PCB fits into the notch 2 Insert two motor shield spacers into the motor shield case 3 Attach the motor shield cover onto the motor shield case two places Align the screw holes and the nibs on the opposite side and push in so that they snap fit Figure 2 4 781 Motor shield cover 725 Screw C C S tite 2 5X5 739 ...

Page 40: ...enoid is touching the nib on the right side of the J S solenoid mounting plate 2 Attach the J S change lever to the J S solenoid mounting plate and hook the J S change spring 3 Lubricate the sliding part of the J S change solenoid mounting plate and the J S change lever in four places Figure 2 5 651 J S change spring 716 Screw C C 2X3 727 J S change solenoid 774 J S solenoid mounting plate 650 J S...

Page 41: ...autocutter Service Manual Confidential Pre assembly of the Slip T O F Detector Assembly 1 Solder lead wires I J K to the slip T O F detector assembly Figure 2 6 703 Slip T O F detector assembly 748 Lead wire type I 749 Lead wire type J 750 Lead wire type K ...

Page 42: ...idential Pre assembly of the Lever Motor T P Detector Assembly 1 Solder lead wires F G H to the lever motor T P detector assembly Figure 2 7 745 Lead wire type F 746 Lead wire type G 747 Lead wire type H 704 Lever motor T P detector assembly ...

Page 43: ...it Note Perform the following 16 steps only if your printer has a MICR unit 1 Solder the MICR connector assembly lead wires to the MICR head 2 Align the MICR frame and MICR head with the nib and attach with one screw Figure 2 8 782 MICR assembly 786 MICR connector assembly 792 MICR frame assembly 793 Screw C P S P2 2 5X5 ...

Page 44: ...ICR fixing sheet does not protrude from the MICR fixing 4 Attach the MICR fixing to the MICR lever The tabs on the MICR fixing should fit into the MICR grooves 5 Assemble by inserting the MICR roller shaft Attach the shaft with one E ring Figure 2 9 777 MICR roller shaft Hole Nibs Tabs Looking directly from the bottom 778 E ring 1 2 787 MICR lever 791 MICR fixing sheet 788 MICR fixing ...

Page 45: ...ide shafts into the MICR frame starting with the end with the smaller diameter 7 Lubricate the areas where the MICR lever and the MICR frame are in contact six places 8 Attach the MICR frame to the MICR lever as shown in the drawing Figure 2 10 G 47 G 47 G 47 796 MICR lever guide shaft 792 MICR frame assembly 787 MICR lever ...

Page 46: ...into the MICR frame assembly 11 Position and attach the MICR lever fixing plate to the MICR lever nib Use two screws to attach Note Tighten the screws while holding the MICR solenoid Check that the MICR lever will fall under its own weight Figure 2 11 783 MICR case 789 MICR solenoid 784 MICR lever fixing plate 794 Screw C P S 2 6X8 ...

Page 47: ...Attach with one E ring 13 Attach the MICR lever spring on the hooks 14 Check that opening and closing the MICR head assembly has a clicking feel to it 15 Insert the MICR shield cover into the three slits in the MICR frame 16 Hook the MICR connector assembly lead wire to the hook on the MICR frame Figure 2 12 785 MICR shield cover type A 790 MICR lever spring 777 MICR roller shaft 778 E ring 1 2 ...

Page 48: ...e drive pulley into the carriage motor shaft 3 Lubricate the inside of the carriage drive pulley 4 Attach the belt drive cap to the carriage drive pulley and secure it with one E ring Place the belt drive cap with flat surface face up to install it Figure 2 13 720 E ring 2 603 Belt drive cap 633 Carriage drive pulley 733 Carriage motor G 36 G 36 ...

Page 49: ...rt the oil rings into the carriage assembly and lubricate When doing so insert the flat surface of the oil rings so that they are facing up and down 2 Hook the carriage spring to the carriage assembly Push in until you feel the carriage spring click Figure 2 14 O 10 O 10 611 Carriage spring Rounded side 709 Carriage assembly 605 Oil ring ...

Page 50: ...ential 3 Insert the carriage belt into the carriage assembly Fit the belt along the grooves in the bottom side of the carriage assembly For the direction of the belt see the illustration below Figure 2 15 629 Carriage belt 709 Carriage assembly ...

Page 51: ...ith autocutter Service Manual Confidential Pre assembly of the H P Detector Assembly 1 Solder lead wires L M N in that order to the H P detector assembly Figure 2 16 07 H P detector assembly 751 Lead wire type L 752 Lead wire type M 753 Lead wire type N ...

Page 52: ...4 Attach the ribbon take up gear assembly to the top of the ribbon feed spring Align the ribbon feed spring claw and the ribbon take up gear assembly and insert 5 Attach the carriage transmission pulley to the shaft shown in the figure below 6 Apply lubrication to the hole in the carriage transmission pulley 7 Attach the belt drive cap Place the belt drive cap with the flat surface face up to inst...

Page 53: ...on the lower side 11 Attach the ribbon drive plate assembly above the ribbon reduction gear and the ribbon intermediate gear Set the gear side of the ribbon drive plate assembly downward 12 Attach the gear train cover to the carriage drive transmission gear 13 Fasten the belt drive cap carriage drive transmission gear and ribbon drive plate assembly with three E rings Figure 2 18 720 E ring 2 720 ...

Page 54: ...mporarily fasten the screw on the lead wire side 15 Loosen the screw you temporarily tightened in the previous step less than one turn 16 Hook the belt tension spring on the carriage motor and carriage frame sub assembly Figure 2 19 775 Screw C P S tite P4 3x6 733 Carriage motor Nib Carriage frame sub assembly 630 Belt tension spring ...

Page 55: ...t and left sides of the carriage guide shaft 19 Hook the carriage belt onto the carriage drive pulley shown with 1 in the illustration and carriage transmission pulley shown with 2 in the illustration in that order 20 Tighten the screw the screw loosened in step 15 on the lead wire side of the carriage motor 21 Secure another screw to firmly tighten the carriage motor Figure 2 20 O 10 O 10 688 Car...

Page 56: ...ircuit board cover together with two screws 24 Attach the H P detector assembly to the carriage frame sub assembly with one screw Pass the H P detector assembly lead wires to the bottom through the hole in the carriage frame sub assembly Figure 2 21 775 Screw C P S tite P4 3x6 775 Screw C P S tite P4 3x6 769 Intermediate circuit board cover 708 Intermediate circuit board assembly 775 Screw C P S t...

Page 57: ...ermediate circuit board assembly connector 26 Attach the nose guide on the print head unit Eb while aligning the three nibs Secure the nose guide with one screw 27 Attach the head seal to the print head unit Eb 28 Lubricate the carriage motor gear and the top of the E ring fastening the ribbon drive plate assembly Figure 2 22 Figure 2 23 608 Screw C P P tite 3X12 623 Nose guide 689 Print head unit...

Page 58: ... cables to the correct connect connections The wires may need to be crossed If the cables are soldered to wrong connection the following will occur The wrong connection of the carriage motor cable causes a power on selt check failure 771 Intermediate cable tube Three cables for H P detector assembly Four cables for motor carriage 734 Intermediate cable type A 735 Intermediate cable type B 736 Inte...

Page 59: ...r Service Manual Confidential Pre assembly of the Front Cover Detector Assembly 1 Solder lead wires V U W in that order to the front cover detector assembly Figure 2 25 760 Lead wire type U 761 Lead wire type V 762 Lead wire type W 691 Front cover detector assembly ...

Page 60: ... D Confidential Pre assembly of the Rear Cover Detector Assembly 1 Solder lead wires X Y Z to the cover detector circuit board Figure 2 26 692 Rear cover detector assembly 764 Lead wire type Y 763 Lead wire type X 765 Lead wire type Z ...

Page 61: ...utocutter Service Manual Confidential Pre assembly of the Paper End Detector Assembly 1 Solder lead wires O P Q to the paper end detector circuit board Figure 2 27 710 Paper end detector assembly 756 Lead wire type Q 755 Lead wire type P 754 Lead wire type O ...

Page 62: ...ist paper guide When doing so attach the assist paper guide spring in the direction shown in the figure 3 Pass the paper hold roller shaft through the assist paper guide and fasten C rings in 2 places 4 Lubricate the center of the hole in the paper hold roller Figure 2 28 678 Backup paper guide cap 642 Paper hold roller shaft 664 Assist paper guide 772 C ring 5103 21 665 Paper hold roller 772 C ri...

Page 63: ...e paper feed frame assembly and sub paper hold roller E ring 1 place 3 Attach the paper guide lever spring and paper ejection detector holder to the paper guide lever with one E ring Attach the paper guide lever spring in the direction shown in the figure Figure 2 29 663 Sub paper hold roller 658 Paper guide lever 652 Paper guide lever spring 724 E ring 2 3 724 E ring 2 3 698 Paper feed frame asse...

Page 64: ...e the sub paper feed roller assembly and the crank shaft holder are in contact 6 Attach the parallel pin and paper feed gear to the sub paper feed shaft with two E rings Figure 2 30 722 E ring 4 730 Crank shaft holder 699 Sub paper feed roller assembly 699 Sub paper feed roller assembly 730 Crank shaft holder 602 Parallel pin 1 6X10 602 648 Paper feed gear 722 E ring 4 G 48 G 48 ...

Page 65: ...ide lever spring to the paper guide lever and paper feed frame Insert the tip of the short side of the spring into the lever groove and bend the spring to hook the tip of the long side on the inside in the gap in the frame Figure 2 31 658 Paper guide lever 652 Paper guide lever spring 698 Paper feed frame assembly ...

Page 66: ...2 32 Assembly and Disassembly Rev D Confidential 8 Snap fit the paper feed frame assembly to the paper end detector to attach Figure 2 32 710 Paper end detector assembly ...

Page 67: ...r feed roller with two E rings 11 Lubricate the sliding parts of the paper feed roller and crank shaft holder 12 Attach the paper feed gear to the axis shown in the figure for the paper feed frame assembly with one E ring Figure 2 33 666 Paper feed roller 722 E ring 4 730 Crank shaft holder 648 Paper feed gear 648 Paper feed gear 722 E ring 4 722 E ring 4 602 G 48 G 48 666 Paper feed roller 602 Pa...

Page 68: ...e paper feed roller springs 14 Set the hooks for the paper feed roller springs into the grooves for the shaft and hang the loop of the spring onto the protrusion on the paper feed frame assembly Be careful of the direction of the attachment of the spring Figure 2 34 654 Paper feed roller spring 654 Paper feed roller spring ...

Page 69: ... roller holder into the third hole from the left on the platen lever assembly 17 Push the slip drive gear into the slip feed roller from the side with the larger diameter 18 Apply lubrication to both sides of the slip feed roller and the slip feed roller holder Rotate the roller several times to allow the oil to work its way completely around Figure 2 35 G 48 G 48 72 E ring 3 668 Slip feed roller ...

Page 70: ...e two platen springs into the platen lever assembly 22 Insert another nylon lock nut M3 23 Attach the platen assembly to the platen lever assembly Secure the two platen adjustment screws 24 Attach the slip paper guide to the platen lever assembly Hang the slip paper guide on the hooks in three places on the platen lever assembly and fit the 2 nibs Figure 2 36 685 Platen adjustment screw 711 Platen...

Page 71: ... the platen lever spring onto the cross shaped protrusion on the paper feed frame and insert the other end onto the protrusion on the platen lever assembly 26 Insert the left and right platen lever shafts into the holes in the platen lever assembly and attach with two E rings Figure 2 37 626 Left platen lever shaft 721 E ring 3 721 E ring 3 625 Platen lever spring 675 Platen ground plate type B 72...

Page 72: ...2 38 Assembly and Disassembly Rev D Confidential 27 Insert the lead wires for the paper end detector assembly in their specified positions Figure 2 38 ...

Page 73: ...eck the operation of the assist paper guide 31 Insert the paper release lever into the platen lever assembly and attach to the release lever shaft with one E ring 32 Attach the guide roller shaft and sub paper hold roller to the paper feed frame assembly with two E rings Figure 2 39 609 Screw C B P tite 3X6 676 Cover ground plate 669 Paper feed frame cover 609 Screw C B P tite 3X6 641 Guide roller...

Page 74: ...sses below the cover ground plate 34 With one E ring attach the paper feed frame fixing R lever assembly and the paper feed frame fixing lever spring to the paper feed release assembly Hang the spring onto the paper feed frame fixing R lever assembly and hang the spring onto the protrusion of the paper feed frame assembly Figure 2 40 701 Paper feed frame fixing L lever assembly 655 Paper feed fram...

Page 75: ...mbly 2 41 TM U675 U675P with autocutter Service Manual Confidential 35 Attach the parallel pin and paper feed gear to the paper feed roller with one E ring Figure 2 41 648 Paper feed gear 722 E ring 4 602 Parallel pin 1 6X10 602 ...

Page 76: ...mbly 1 Solder the paper ejection detector cable assembly type B to the paper ejection detector assembly After soldering pass the cables through the slit in the paper ejection detector assembly Figure 2 42 690 Paper ejection detector assembly 738 Paper ejection detector cable type B assembly Slit ...

Page 77: ...tor assembly and the paper ejection detector holder Then secure them with one screw 3 Route the paper ejection detector cable assembly type B as shown in the illustration Figure 2 43 609 Screw C B P tite 3X6 635 Paper ejection detector holder 690 Paper ejection detector assembly 738 Paper ejection detector cable type B assembly ...

Page 78: ...iage cover frame assembly Check the starting position for inserting the cable 5 Attach the paper ejection detector assembly to the carriage cover frame assembly with one screw Figure 2 44 725 Screw C C S tite 2 5X5 635 Paper ejection detector holder 713 Carriage cover frame assembly 738 Paper ejection detector cable type B assembly ...

Page 79: ...ential Pre assembly of the Lever Drive Motor Assembly 1 Solder the lead wires A B to the lever drive motor assembly Solder lead wire type A red to the terminal on the side where the label is affixed Figure 2 45 740 Lead wire type A 741 Lead wire type B 686 Lever drive motor assembly Label ...

Page 80: ...of the Autocutter Assembly 1 Solder the cutter lead wire assembly to the cutter motor assembly Solder the red lead wire to the red terminal and solder the black lead wire to the opposing terminal Figure 2 46 191 Cutter motor assembly 192 Cutter lead wire assembly ...

Page 81: ...gear clutch washer and cutter clutch spring to the cutter cover sub assembly When doing so the narrow side of the cutter clutch spring is the motor side 4 Insert and touch the autocutter deceleration shaft from the hole in the motor side Figure 2 47 G 36 188 Cutter cover sub assembly 183 Autocutter deceleration shaft 184 Cutter worm gear 185 Clutch washer 186 Cutter clutch spring 182 Autocutter de...

Page 82: ...assembly from the cutter cover sub assembly window 6 Attach the micro switch to the cutter cover sub assembly in the direction shown in the figure screw in 1 place 7 Hang the lead wire of the motor and micro switch onto the parts shown in the figure Figure 2 48 187 Switch screw Hang the lead wire of the micro switch Hang the lead wire of the motor 181 Screw C B 2X2 5 119 Micro switch 191 Cutter mo...

Page 83: ...clutch spring and cutter cover sub assembly that are touching 10 Apply G 36 oil to the autocutter deceleration shaft from the gap in the cutter clutch spring 11 Apply G 36 oil to the two places on the cutter worm gear and cutter cover sub assembly that are touching Figure 2 49 G 36 G 36 G 36 G 36 Step 8 Step 11 Step 10 Step 9 186 Cutter clutch spring 184 Cutter worm gear 182 Autocutter deceleratio...

Page 84: ... drive gear assembly 1 plain washer 1 E ring Position the cavity in the cutter drive gear assembly with the actuator of the micro switch 14 Apply G 36 oil around the entire circumference of the gear for the cutter drive gear assembly Figure 2 50 180 E ring 2 5 Actuator Cavity 193 Plain washer 3X0 5X7 189 Cutter drive gear assembly G 36 G 36 ...

Page 85: ...ly and Disassembly 2 51 TM U675 U675P with autocutter Service Manual Confidential 15 Apply G 36 oil around the entire circumference of the blade groove attached to the cutter frame sub unit Figure 2 51 G 15 Groove ...

Page 86: ...ver sub assembly to the cutter frame sub unit 17 With the cutter cover sub assembly tilted look inside the cover through the space shown below and rotate the knob indicated in the figure to position the drive pin with the groove in the blade Figure 2 52 Hook Knob Cover Frame Look through the space Drive pin groove ...

Page 87: ... and Disassembly 2 53 TM U675 U675P with autocutter Service Manual Confidential 18 Position the cutter cover sub assembly with the cutter frame sub unit and fasten with 1 screw Figure 2 53 178 Screw C B S tite F 3X4 ...

Page 88: ...the knob in the direction of the arrow to position the shaft with the round hole marked with a triangular hole in the center of the arced slit Rotate the knob in the arrow marked on the knob to adjust until center of the drive pin comes to the center of the slit Figure 2 54 Knob Drive pin Slit ...

Page 89: ...n two screws on the front of the main frame 2 Attach the lever drive motor assembly to the main frame with two screws Install so that the label side of the lever drive assembly motor is facing the back Figure 2 55 726 Screw C B S tite F 3X6 Main frame 686 Lever drive motor assembly 773 Screw C B 2 6X4 726 Screw C B S tite F 3X6 ...

Page 90: ...fidential 3 Attach the sub slip feed roller holder to the farthest right hole in the sub slip feed lever sub assembly with one screw Figure 2 56 687 Sub slip feed lever sub assembly 660 Sub slip feed roller holder 725 Screw C C S tite 2 5X5 ...

Page 91: ...feed lever spring to the main frame 5 Attach the sub slip feed lever sub assembly to the main frame Insert the sub slip feed lever shaft from left side and fasten it with one E ring Figure 2 57 644 Sub slip feed lever shaft 656 Sub slip feed lever spring Main frame 719 E ring 1 5 687 Sub slip feed lever sub assembly ...

Page 92: ...orm stopper shaft with one E ring Insert the form stopper shaft from the outer side of the main frame 7 Hook the form stopper spring to the main frame and form stopper rack Figure 2 58 620 Form stopper spring 620 719 E ring 1 5 618 Form stopper 618 619 Form stopper shaft 656 Sub slip feed lever spring Main frame ...

Page 93: ...ft assembly to the main frame Insert the D cut side of the lever drive shaft assembly to the left and attach to the main frame 9 Insert the crank shaft holders from the left and right outer sides and attach with one E ring Figure 2 59 730 Crank shaft holder 730 Crank shaft holder 693 Lever drive shaft assembly 723 E ring 5 ...

Page 94: ...semble the sub slip feed roller assembly into the main frame 12 Press the slip drive gear onto the sub slip feed roller assembly Press in starting from the slip drive gear whose diameter is larger See the illustration below Figure 2 60 649 Slip drive gear 694 Sub slip feed roller assembly 617 Lever drive shaft gear Main frame ...

Page 95: ...ssembly When doing so align the rib on the gear and attach 14 Lubricate the shaft to which the lever motor reduction gear is attached 15 Use one E ring to attach the lever motor reduction gear to the shaft The arrow on the lever motor reduction gear should be facing the outside Figure 2 61 G 36 Rib 724 E ring 2 3 615 Lever motor reduction gear 614 Lever drive motor detector plate ...

Page 96: ... in two places 19 Lubricate the main frame and sub slip feed roller where they contact 20 Lubricate the form stopper and sub slip feed lever sub assembly shaft where they contact 21 Lubricate the cam on the lever drive shaft assembly Note Apply G 48 grease from step 16 to 20 but apply G 36 to the cam in step 21 Figure 2 62 G 48 G 36 G 48 G 48 G 48 G 48 G 48 Step 20 Step 21 Step 18 Step 19 Step 16 ...

Page 97: ...y based on the specifications Use only the one that matches your configuration 23 Attach the validation stopper and validation stopper spring to the slip guide lower frame 24 Hook the cable line of the slip B O F detector assembly to the slip guide lower frame Figure 2 63 662 Slip guide lower frame 662 673 Validation stopper spring 696 Slip B O F detector assembly 673 672 672 Validation stopper 60...

Page 98: ...fidential 25 Attach the slip guide lower frame to the main frame using two screws When doing so pass the cable wire on the slip B O F detector assembly through the hole in the main frame Figure 2 64 726 Screw C B S tite F 3X6 Main frame Hole ...

Page 99: ...ers 27 Temporarily attach the front frame and the slip guide upper frame When doing so align the nibs shown in the illustration with the nib holes 28 Temporarily attach the sub slip hold roller so that the D cut side is on the right side Figure 2 65 661 Slip guide upper frame 667 Sub slip hold roller 613 Front frame 770 Sub slip hold sleeve 770 Sub slip hold sleeve Nib Nib Hole Hole ...

Page 100: ...ch the slip guide upper frame to the slip guide lower frame When doing so align the nibs and the claw shown in the illustration with the corresponding holes and slit Figure 2 66 661 Slip guide upper frame Claw Nibs Nib Nibs 662 Slip guide lower frame type B ...

Page 101: ...rame and secure them with six screws When doing so make sure the nibs and claw you aligned in the previous step step 29 are still aligned 31 Tighten the two screws to secure the slip guide upper frame 32 Attach the endorsement platen shutter to the slip guide upper frame Figure 2 67 611 Carriage spring 691 Front cover detector assembly 691 Front cover detector assembly 654 Paper feed roller spring...

Page 102: ...he slip hold roller sleeve onto the slip hold roller shaft from the D cut side 35 Insert the two slip feed roller shaft holders onto the slip hold roller shaft with the flange facing inward Figure 2 68 610 Slip feed roller shaft holder 645 Slip hold roller shaft 610 Slip feed roller shaft holder 766 Slip hold roller sleeve 767 Slip hold roller spring ...

Page 103: ...h autocutter Service Manual Confidential 36 Attach the slip hold roller shaft to the main frame in the order shown in the illustration Align the D cut portions of the slip feed roller shaft holder with the cutouts in the main frame Figure 2 69 PUSH 1 2 3 ...

Page 104: ... the holders with two E rings 38 Push the slip drive gear into the slip hold roller shaft starting from the side whose diameter is larger 39 Press the slip drive gear into the sub slip hold roller starting from the larger diameter Figure 2 70 721 E ring 3 610 Slip feed roller shaft holder 721 E ring 3 610 Slip feed roller shaft holder 649 Slip drive gear 649 Slip drive gear ...

Page 105: ...l 40 Insert three slip transmission gears onto the shafts on the main frame 41 Insert the paper feed reduction gear onto the shaft on the main frame starting from the gear whose diameter is smaller Figure 2 71 729 Paper feed reduction gear 647 Slip transmission gears 647 Slip transmission gear ...

Page 106: ...in the figure with the gear whose diameter is largest in 45 Insert the take up drive gear into the shaft shown in the figure 46 Insert the paper feed transmission gear into the shaft shown in the figure 47 Attach the gears with four E rings 3 Figure 2 72 646 Take up drive gear 721 E ring 3 721 E ring 3 721 E rings 3 728 J S change gear 637 Paper feed transmission gear 721 E ring 3 G 36 729 Paper f...

Page 107: ...73 TM U675 U675P with autocutter Service Manual Confidential 48 Attach the lever drive coil assembly to the slip guide lower frame with two screws Figure 2 73 609 Screw C B P tite 3X6 Lever drive coil assembly 609 Screw C B P tite 3X6 ...

Page 108: ...djusting Note Perform the following step only if your printer has a MICR unit 50 Attach the shielded paper feed motor to the main frame with two screws Attach so that the motor cable is facing the direction shown in the illustration Figure 2 74 726 Screw C B S tite F 3X6 726 Screw C B S tite F 3X6 ...

Page 109: ...e following steps only if your printer does not have a MICR unit 51 Attach the paper feed motor to the main frame with two screws Check that the circuit board side of the motor is facing downward as shown in the illustration Figure 2 75 739 Paper feed motor 726 Screw C B S tite F 3X6 726 Screw C B S tite F 3X6 ...

Page 110: ...lign the J S change solenoid with the nibs and attach to the main frame with one screw 53 Lubricate the J S change gear 54 Attach the E ring 2 3 to the J S change gear shaft Figure 2 76 721 E ring 3 726 Screw C B S tite F 3X6 727 J S change solenoid G 36 ...

Page 111: ... Manual Confidential 55 Snap fit the slip T O F detector assembly to the slip guide upper frame 56 Pass the slip T O F detector assembly lead wires through the two hooks and pass them through the hole in the main frame Figure 2 77 703 Slip T O F detector assembly Hooks Hole ...

Page 112: ... attach the lever motor T P detector assembly to the main frame with one screw The detector assembly should not touch the lever drive motor detector plate Figure 2 78 614 Lever drive motor detector plate 704 Lever motor T P detector assembly 726 Screw C B S tite F 3X6 614 704 ...

Page 113: ... the main circuit board assembly to the main frame Place the board so the side of the main circuit board assembly with two connectors faces the front of the main frame and the soldered side faces upward Align with the nibs in two places Figure 2 79 726 Screw C B S tite F 3X6 705 Main circuit board assembly Two connectors ...

Page 114: ...older the lead wires of the cables to the main circuit board assembly Note See Figure 2 93 on page 2 93 and Table 2 1 for details on where to solder 60 Hook the lead wires on the side of the paper feed motor as shown in the illustration below Figure 2 80 ...

Page 115: ...Manual Confidential Note Perform the following step only if your printer has a MICR unit 61 Attach the MICR unit to the slip guide lower frame with two screws Pass the MICR unit cable through the hole in the main frame Figure 2 81 Screw C B P tite 3X8 776 Screw C B P tite 3X8 ...

Page 116: ... Rev D Confidential Note Perform the following step only if your printer does not have a MICR unit 62 Attach the MICR plate shutter to the slip guide lower frame with one screw Figure 2 82 776 Screw C B P tite 3X8 679 MICR shutter ...

Page 117: ... main frame with four screws Fit the nibs in the carriage frame unit to the main frame notches Note Check that the carriage assembly moves smoothly and that the ribbon drive plate assembly moves smoothly with the carriage assembly Figure 2 83 726 Screw C B S tite F 3X6 726 Screw C B S tite F 3X6 734 Intermediate cable type A 735 Intermediate cable type B 736 Intermediate cable type C Main frame Ho...

Page 118: ...able 2 1 for details on where to solder 66 Align the front cover detector assembly with the nib on the main frame and attach with one screw 67 Solder the lead wires of the front cover detector assembly to the main circuit board assembly Note See Figure 2 93 on page 2 93 and Table 2 1 for details on where to solder Figure 2 84 684 Belt plate 726 Screw C B S tite F 3X6 714 Screw C B S tite F 3X4 691...

Page 119: ...ach the rear cover detector assembly and the R cover detector cap to the main frame with one screw 69 Solder the lead wires of the rear cover detector assembly to the main circuit board and route the wires Figure 2 85 636 R cover detector cap 715 Screw C P S tite F 3X5 692 Rear cover detector assembly ...

Page 120: ...2 86 Assembly and Disassembly Rev D Confidential 70 Attach the drive lever coil cover to the slip guide lower frame Figure 2 86 671 Drive lever coil cover ...

Page 121: ... and fasten the paper feed frame shaft 74 Position the two nibs and attach the assist frame sub assembly with two screws Note The assist frame sub assembly is not included in the mechanism assembly supplied as a service part For that reason replace the mechanism assembly M U675 after attaching the assist frame sub assembly to the mechanism assembly when replacing the mechanism assembly 75 Apply oi...

Page 122: ...2 88 Assembly and Disassembly Rev D Confidential 76 Fasten the ground wire assembly to the main frame with one screw Figure 2 88 208 Ground wire assembly 107 Screw C P S tite 0 3X6 ...

Page 123: ...Confidential 77 Solder the lead wires of the paper end detector assembly to the main circuit board assembly Note See Figure 2 93 on page 2 93 and Table 2 1 for details on where to solder 78 Lubricate the areas shown in the illustration Figure 2 89 G 36 G 36 G 36 G 36 G 36 G 48 G 36 ...

Page 124: ... carriage cover on the main frame Hook the carriage cover on the carriage guide shaft and align the screw hole and one nib Tighten the left side and right side screws in that order Figure 2 90 714 Screw C B S tite F 3X4 Carriage cover 714 Screw C B S tite F 3X4 2 1 ...

Page 125: ...e assembly type A and the paper ejection detector cable assembly type B 81 Fasten the lead wires for the paper ejection detector cable assembly type A and the front cover detector using a nylon clip Secure one screw to fasten the clip Figure 2 91 607 Nylon clip 726 Screw C B S tite F 3X6 737 Paper ejection detector cable type A assembly ...

Page 126: ...2 92 Assembly and Disassembly Rev D Confidential Figure 2 92 607 Nylon clip 106 Screw C B S tite F 3X6 738 Paper ejection detector cable type B assembly 737 Paper ejection detector cable type A assembly ...

Page 127: ...er feed motor cable causes the paper feed failure Table 2 1 Meaning of abbreviation Abbreviations Color Abbreviations Color Pur purple Org orange Gry gray Blu blue Blk black Wht white Red red Pnk pink J S change gear Paper ejection detector assembly Slip T O F detector assembly Front cover detector assembly Rear cover detector assembly Lever drive coil type B Carriage unit Paper feed motor N E det...

Page 128: ...mbly type B to the connector plate type BA and tighten the screws Figure 2 95 Note The connector plate type AA is not supplied as a service part The service part RS232 I F circuit board unit is supplied with the connector plate type AA attached 113 Rubber insulator spacer 114 Metallic insulator spacer 107 Screw C P S tite 0 3X6 107 Screw C P S tite 0 3X6 107 Screw C P S tite 0 3X6 107 Screw C P S ...

Page 129: ... screw to the N E detector holder 2 Attach the N E detector lever to the N E detector holder Check how the lever moves two to three times 3 Fix the micro switch to the N E detector holder with one screw Attach in the direction shown in the figure Figure 2 96 119 Micro switch 118 Screw C B B tite 2X8 117 N E detector lever 116 N E detector holder 120 Hexagon nut ...

Page 130: ...ffer according to the configuration Use the main circuit board that is appropriate for your configuration 2 Attach the strengthening plate B to the main plate sub assembly with three screws Figure 2 97 133 Main plate sub assembly 106 Screw C B S tite F 3X6 135 Strengthening plate 107 Screw C P S tite 0 3X6 107 Screw C P S tite 0 3X6 107 Screw C P S tite 0 3X6 107 Screw C P S tite 0 3X6 201 Main ci...

Page 131: ...e illustration and attach the two insulator spacer assemblies The flange of the metallic insulator spacer should be facing downward 5 Fasten the mechanism assembly M U675 using one screw Note The assist frame sub assembly is not included in the mechanism assembly supplied as a service part Figure 2 98 106 Screw C B S tite F 3X6 600 Mechanism assembly type BB nsulator spacer ssemblies Nibs Nib hole...

Page 132: ...board unit 8 Pass the N E detector assembly unit lead wire through the hole in the plate and connect to the main circuit board unit 9 Pass the autocutter cable assembly through the hole in the plate and connect it to the main circuit board unit Figure 2 99 203 Power switch cable assembly 205 N E detector assembly lead wire 207 Control panel cable 209 Autocutter cable assembly ...

Page 133: ...llustration 11 Use insulated tape on the areas shown in the illustration to secure the power switch cable assembly temporarily 12 Connect the two circuit board FFCs to the main circuit board unit and the mechanism assembly M U675 in that order Bend the FFCs so that the fold is on the main circuit board side Figure 2 100 206 Circuit board FFC Tape 203 Power switch cable assembly QM6 203 Power switc...

Page 134: ...Disassembly Rev D Confidential Note Perform the following step only if your printer has a MICR unit 13 Connect the MICR cables two connectors Put the excess cable into the opening as shown in the illustration Figure 2 101 ...

Page 135: ...mechanism assembly M U675 with one screw 15 Connect the control panel cable to the control panel circuit board assembly Route the wiring so that the control panel cable is positioned under the L shaped part shown in the illustration Figure 2 102 204 Control panel circuit board assembly 102 Screw C B S tite F 3X4 207 Control panel cable L shaped part ...

Page 136: ...r case with four screws Align the mechanism assembly M U675 with the lower case nibs CAUTION Be careful not to allow the power switch cable assembly to become pinched Figure 2 103 109 Screw C B B tite 4X25 112 Plain washer 4 2X1X12 108 Screw C B B tite 4X12 124 Rubber foot 124 Rubber foot 124 Rubber foot 108 Screw C B B tite 4X12 127 Lower case ...

Page 137: ...vice Manual Confidential 18 Remove the tape that is temporarily holding the power switch cable assembly and attach the switch to the lower case Assemble so that the O mark is on the left side and the I mark is on the right side Figure 2 104 203 Power switch cable assembly ...

Page 138: ...ector spacer onto the N E detector adjustment screw and attach the N E detector assembly to the paper roll holder 22 Fit the holder spring onto the holder plate and attach to the roll paper holder Figure 2 105 154 Roll paper receive roller 154 Roll paper receive roller 121 N E detector spacer 142 Holder spring 141 Holder plate 143 Roll paper holder 125 N E detector adjustment screw 142 141 143 ...

Page 139: ...ing into the take up pulley while aligning the craw on the spring into the pulley 25 Remove the take up pulley and lubricate the take up spring attached to the take up gear Reattach the take up pulley 26 Attach the take up gear to the take up frame assembly Figure 2 106 151 Take up spring 146 Take up gear 152 Take up pulley 105 E ring 2 147 Take up frame assembly G 36 G 36 ...

Page 140: ...2 106 Assembly and Disassembly Rev D Confidential 27 Attach the break cap to the break plate sub assembly one screw Figure 2 107 102 Screw C B S tite F 3X4 168 Break cap 174 Break plate sub assembly ...

Page 141: ...ev D Assembly and Disassembly 2 107 TM U675 U675P with autocutter Service Manual Confidential 28 Attach the break plate sub assembly to the back frame one E ring Figure 2 108 164 E ring 4 167 Back frame ...

Page 142: ... the back frame to the lower case and tighten with 4 screws While doing so secure the ground wire assembly with the screw shown in the illustration Figure 2 109 103 Screws C P T B 3X10 103 Screws C P T B 3X10 208 Ground wire assembly 107 Screw C P S tite 0 3X6 ...

Page 143: ... and Disassembly 2 109 TM U675 U675P with autocutter Service Manual Confidential 30 Connect the N E detector lead wire to the micro switch on the N E detector assembly Figure 2 110 205 N E detector assembly lead wire ...

Page 144: ...nfidential 31 Attach the roll paper holder to the lower case Touch the roll paper holder against the mechanism assembly and tighten the two screws while pushing to the back left side Figure 2 111 103 Screws C P T B 3X10 143 Roll paper holder ...

Page 145: ...ial 32 Pass the take up frame assembly through the hole in the back frame and attach it to the roll paper holder two screws At this time place the take up frame assembly against the main mechanism and rib on the roll paper holder Figure 2 112 147 Take up frame assembly 103 Screws C P T B 3X10 ...

Page 146: ... belt onto the take up pulley Then hang to the take up gear of the mechanism assembly Place the lower side of the belt onto the belt plate Hang the take up pulley first Then hang on the take up drive gear on the mechanism assembly M U675 Figure 2 113 1 2 153 Paper take up belt ...

Page 147: ...the hooks on the slits in the cover frame sub assembly Hang the other ends of the right and left hook springs on the grooves of the right and left hook buttons and attach the right and left hook buttons to the shafts with two E rings Figure 2 114 102 Screw C B S tite F 3X4 groove shaft slit 102 Screw C B S tite F 3X4 175 Cover frame sub assembly 177 Left cover plate sub assembly 176 Right cover pl...

Page 148: ... Assembly and Disassembly Rev D Confidential 36 Attach the autocutter unit to the cover frame sub assembly using two screws Figure 2 115 102 Screw C B S tite F 3X4 102 Screw C B S tite F 3X4 Autocutter unit ...

Page 149: ...sassembly 2 115 TM U675 U675P with autocutter Service Manual Confidential 37 Pass the autocutter cable assembly through the hole in the back frame and hang it on the hook shown below Figure 2 116 Hook Hole in the back frame ...

Page 150: ...Rev D Confidential 38 Attach the cover frame sub assembly with two E rings Apply G 36 oil to the two places where the holes touch the shafts Figure 2 117 175 Cover frame sub assembly 167 Back frame G 36 G 36 164 E ring 4 164 E ring 4 ...

Page 151: ...Disassembly 2 117 TM U675 U675P with autocutter Service Manual Confidential 39 Hook the break spring on the back frame and break plate sub assembly Figure 2 118 171 Break spring 167 Back frame 174 Break plate sub assembly ...

Page 152: ... of the lead wire through the slit in the cutter plate cover 42 At the same time position the other end of the lead wire into the cut out portion in the cutter plate cover fasten the cutter plate cover to the cover frame sub assembly with one screw Figure 2 119 192 Cutter lead wire assembly 209 Autocutter cable assembly 165 Cutter plate cover Cut out portion Slit 187 Switch screw 175 Cover frame s...

Page 153: ...with autocutter Service Manual Confidential 43 Fit the support plate and the table holder into the lower case 44 Apply G 48 oil to two shafts where the left hook button and right hook button hang Figure 2 120 G 48 G 48 137 Support plate 138 Table holder ...

Page 154: ...f you have a new upper case there is a plate for support to prevent damage during shipment Cut this plate in the manner shown in the illustration below 46 Snap fit the back case to the upper case to attach Figure 2 121 128 Upper case 129 Back case CUT CUT ...

Page 155: ...Rev D Assembly and Disassembly 2 121 TM U675 U675P with autocutter Service Manual Confidential 47 Attach the upper case to the lower case Figure 2 122 128 Upper case 127 Lower case ...

Page 156: ...he cable wire for the paper ejection detector cable assembly type A through the slit in the upper case Note Do not confuse with the cable wire for the paper ejection detector cable assembly type B Figure 2 123 737 Paper ejection detector cable assembly type A Slit 738 Paper ejection detector cable assembly type B ...

Page 157: ...ot allow the cable wire to become pinched between the cases 50 Push the cable wire for the paper ejection detector cable assembly type A connector into the hole in the upper case Then route the cable wire for the paper ejection detector cable assembly type B as shown in the illustration at right so that it is not in the way of the ribbon cassette Figure 2 124 ...

Page 158: ...he flat cable for the control panel unit through the slit in the front case and attach the control panel unit to the front case Snap fit the switch panel unit in the order indicated in the illustration Figure 2 125 130 Front case 134 Control panel unit Slit 1 2 ...

Page 159: ...and attach When doing so the flat cable for the control panel unit should be on top of the cable wire for the control panel cable CAUTION If the flat cable for the control panel unit is not on top of the cable wire for the control panel cable there is the possibility that the flat cable could be too short 55 Fasten the front case using two screws Figure 2 126 103 Screw C P T B 3X10 110 Clamp 104 S...

Page 160: ...ev D Confidential 56 Open the autocutter unit and place the take up assembly above the main unit mechanism Lubricate the sliding parts of the take up assembly and the take up frame assembly Figure 2 127 126 Take up assembly G 36 G 36 ...

Page 161: ...al Confidential 57 Affix the operation label type FA to the roll paper cover 58 Attach the roll paper cover Hang the 4 claws on the back frame and set the 2 hinges into the holes in the back case Figure 2 128 132 Roll paper cover 39 Operation label type FA Claws Hinge Hinge Claws ...

Page 162: ... front sound absorption material to the ribbon cassette cover 60 Attach the ribbon cassette cover to the upper case Align the hinges on the ribbon cassette cover with the nibs and attach Figure 2 129 131 Ribbon cassette cover 144 Front sound absorption material 1 2 ...

Page 163: ...isassembly 2 129 TM U675 U675P with autocutter Service Manual Confidential 61 Attach the I F circuit board unit to the main circuit board unit with two screws Figure 2 130 I F circuit board unit 107 Screws C P S tite 0 3X6 ...

Page 164: ...Attach the lower plate and the IC cover to the main plate sub assembly with five screws When doing so check that the wiring of the power switch cable assembly is as shown in Figure 2 99 Figure 2 131 136 Lower plate 111 IC cover 106 Screws C B S tite F 3X6 ...

Page 165: ...Rev D Assembly and Disassembly 2 131 TM U675 U675P with autocutter Service Manual Confidential 63 Attach the three screws for fastening the display module option Figure 2 132 106 Screws C B S tite F 3X6 ...

Page 166: ...2 132 Assembly and Disassembly Rev D Confidential 64 Fasten the upper case and lower case by tightening the two screws Figure 2 133 103 Screws C P T B 3X10 ...

Page 167: ...BA 67 Affix an operation label type DA 68 Affix a front seal 69 Affix a head caution seal Figure 2 134 70 Perform the following adjustments and settings See Chapter 3 Adjusting and Setting Platen gap adjustment Detectors threshold value setting 149 Operation label type DA 162 Head caution seal 122 Caution seal 148 Front seal 140 Operation label type BA ...

Page 168: ...2 134 Assembly and Disassembly Rev D Confidential ...

Page 169: ...r before working There is power flowing in the internal circuit board even if you turn off the printer power supply switch You can damage the printer if you work when the power supply is still attached Remove all peripheral equipment connected to the printer before starting your work Do not perform any work that is not described in this chapter Doing so can result in injuries or damage to the prin...

Page 170: ...s when you have removed or replaced any of the following 1 Press the tab of the lever drive coil type B Figure 3 1 Items Requiring Phase Adjustment The lever drive gear The lever drive transmission gear The platen lever drive cam Lever drive coil type B Claw when raised Claw when pushed ...

Page 171: ... in the illustration so that the protrusion on the lever drive gear faces the very bottom of the printer Figure 3 2 3 Remove your finger from the claw of the lever drive coil type B Check that the claw returns to its original position Redo from step 1 if it has not returned to its original position Figure 3 3 A A A Lever motor reduction gear Lever drive gear protrusion Lever drive gear Lever drive...

Page 172: ...3 4 Adjusting and Setting Rev D Confidential 4 Rotate the lever motor reduction gear Continue until the lever drive gear no longer rotates Figure 3 4 Lever motor reduction gear Lever drive gear ...

Page 173: ...r Service Manual Confidential 5 While the printer is in that state attach the lever drive transmission gear to the lever drive transmission gear axis using one E ring Figure 3 5 Lever drive gear Lever drive transmission gear Lever drive transmission gear E ring ...

Page 174: ...ten lever drive cam to the platen lever drive cam shaft using one E ring Set so that the three gear teeth of the platen lever drive cam are facing downward Figure 3 6 G 36 Three teeth of the gear Platen lever drive cam E ring Lever drive transmission gear Platen lever drive cam Platen lever drive cam E ring ...

Page 175: ...Rev D Adjusting and Setting 3 7 TM U675 U675P with autocutter Service Manual Confidential Figure 3 7 Lever drive gear Lever motor reduction gear Platen lever drive cam Tab of the lever drive coil type B ...

Page 176: ...ower switch See Figure 3 8 Then confirm that the platen is closed After the printer finishes the power on test remove the power supply unit from the printer This procedure closes the platen Note When you are adjusting the platen gap you must close the platen There are instances where the platen is open on this printer after assembly because of positioning of the gears and cams Therefore you must a...

Page 177: ...rews for the platen set are located here Figure 3 9 Note Adjust the platen gap to meet the following conditions 0 5 0 05 mm The 0 45 mm thickness gauge falls under its own weight The 0 50 mm thickness gauge is pinched and will not fall between the platen and the print head unit 6 Attach the ribbon cassette cover and the carriage cover set frame 20 mm 40 mm 0 5 0 05 mm Adjustment Screw Gauge Print ...

Page 178: ...n OFF the fluorescent lighting while working 1 Install the roll paper Note You must have roll paper installed to make accurate settings 2 Remove slip paper if it is inserted Note You cannot make accurate settings if there is slip paper present 3 Connect the power supply to the printer 4 Open the roll paper cover 5 Turn on the power switch for the printer while holding down the FEED button and the ...

Page 179: ...m x 1 To adjust the platen gap Crosshead screwdriver No 0 1 and 2 Other assembly disassembly Flathead screwdriver Other assembly disassembly Tweezers Other assembly disassembly Soldering iron Other assembly disassembly Wrist band Other assembly disassembly E ring holder 1 2 1 5 2 0 2 3 3 0 4 0 and 5 0 Other assembly disassembly Hexagon box driver 5 5 mm Other assembly disassembly Table A 2 Lubrica...

Page 180: ...Appendix A 2 Service Tools and Lubricants Rev D Confidential ...

Page 181: ...st Items to Check Checkpoints Handling Printer setup The connector cables are plugged in Reconnect cables The roll paper and ribbon cassette are properly installed Install them properly The ribbon is routed properly in the printer The ribbon is not damaged Replace the ribbon cassette The roll paper cover is closed Close the cover The front cover ribbon cassette cover is closed Paper dust or partic...

Page 182: ...wice a year Is the receipt side platen roller white with paper dust Dampen a cloth with a small amount of water and wipe the roller surface Twice a year Spring shapes Are other springs deformed or dis engaged Reattach or replace the springs Twice a year Autocutter status Is there paper dust on the cutter blade or other foreign matter adhering to it Remove the paper dust or foreign matter Twice a y...

Page 183: ...ust the timing of each cleaning according to the operating conditions Cleaning Sheet Standards Use the following commonly sold cleaning sheet PRESAT brand KIC CHECK READER CLEANING CARD or the equivalent product damp type cleaning sheet Procedures for Cleaning You can clean in the following modes Select the mode when you start cleaning Self mode Command mode When Cleaning in the Self Mode 1 Load r...

Page 184: ...d press the RELEASE button once and remove the sheet CAUTION Do not reuse cleaning sheets 10 Turn OFF the power supply to the printer When Cleaning in the Command Mode 1 Execute the MICR cleaning command FS c 2 Insert the cleaning sheet into the printer in the same way as a check CAUTION Insert the cleaning sheet in the correct direction 3 After the cleaning sheet is ejected press the RELEASE butt...

Page 185: ...ting any of the cables make sure that both the printer and the host PC are turned off Connecting to the Host PC You need an appropriate serial interface or parallel interface cable to connect your computer to the printer For the serial model use a null modem cable and for the parallel model use an IEEE 1284 cable Note It is important that you use a null modem cable with the serial interface model ...

Page 186: ... the screw labeled FG which is next to the interface connector 4 Attach the other end of the cable to the host PC Connecting the Drawer WARNING Use a drawer that matches the printer specification Using an improper drawer may damage the drawer as well as the printer Do not connect a telephone line to the drawer kick out connector otherwise the printer and the telephone line may be damaged Plug the ...

Page 187: ... power connector Also do not connect a telephone line to the display module connector Note The DM connector can be used only with the serial interface model of this printer 1 Make sure that the printer is turned off 2 Plug the cable connector provided with the direct connection display module securely into the printer s display module connector until it clicks Figure C 5 Connecting to a direct con...

Page 188: ...rated voltage and your outlet s voltage do not match contact your dealer for assistance Do not plug in the power cord Otherwise you may damage the power supply or the printer 1 Make sure the printer s power switch is turned off and the power supply s power cord is unplugged from the electrical outlet 2 Check the label on the power supply to make sure the voltage required by the power supply matche...

Page 189: ... Overview Component Functions Figure D 1 Figure D 2 Figure D 3 Paper roll cover Control panel Front cover Interface connector DM connector Drawer kick out connector Power supply connector This illustration shows the serial interface model The parallel interface connector looks slightly different DIP switch cover ...

Page 190: ...tically arranged in one row the head carriage assembly platen carriage motor carriage drive pulley carriage guide shaft carriage transmission pulley and carriage transmission belt See Figure D 4 Figure D 4 Platen Print head unit Carriage drive pulley Carriage motor gear Head carriage assembly Carriage transmission belt Carriage transmission pulley Carriage guide shaft ...

Page 191: ...See Figure D 5 Figure D 5 Printing operation Wire movement when printing one dot 1 When an electrical pulse is applied to the drive coil the steel core is excited and the operation plate is pulled in the direction indicated by black arrow At this time the dot wire is pressed against the operation plate by the force of the wire return spring The force of the operation plate pushes the dot wire out ...

Page 192: ...the drive coil ends the dot wire and operation plate are returned to the standby status by the spring force of the wire return spring and operation plate spring See Figure D 6 Figure D 6 Operating plate Wire return spring Dot wire Paper Wire guide Ink ribbon Platen Core Drive coil ...

Page 193: ...e motor phase change signal as a reference signal The print head unit moves approximately 0 339 mm with a one step rotation 7 5 of the carriage motor To print the number 2 print solenoid numbers 2 and 9 are energized in sync with the carriage motor phase change signal Next print solenoid number 8 is energized in sync with TnH delayed by a half dot time interval The number 2 is printed by repeating...

Page 194: ... open close cam 180 The platen lever moves in the direction indicated by arrow a around the platen lever shaft and the platen and slip feed roller open See Figure D 8 To close the platen the lever drive coil is energized again while the lever drive motor rotates turning the lever drive gear the prescribed amount in the direction of the arrow This rotates the platen lever open close cam 180 and the...

Page 195: ... paper end detection mechanism Roll paper detection Roll paper near end detection mechanism Roll paper detection Validation detector mechanism Validation paper detection Lever motor T P detection mechanism Lever drive motor timing signal detection Front cover detection mechanism Front cover open closed status detection Rear cover detection mechanism Detects the open close status of the rear cover ...

Page 196: ...prised of the carriage drive transmission gear and carriage detector which are located on the carriage motor shaft The carriage detector consists of an LED and phototransistor The driving force generated by the carriage motor is transmitted to the carriage motor gear carriage drive pulley carriage belt carriage transmission pulley and the carriage drive transmission gear which is located at an equ...

Page 197: ...or are interrupted resulting in a change in the phototransistor output level This change in output level is used as a detection signal to determine whether or not a slip has been inserted Figure D 13 Top of form T O F detection mechanism The T O F detection mechanism detects whether or not a slip has been inserted The mechanism is located near the top before the form stopper to ensure it can deter...

Page 198: ...jection port to ensure it can determine whether or not paper remains in the unit after the slip ejection operation has taken place The paper ejection detector is comprised of an LED and phototransistor Reflected light is used to determine whether or not the slip has been ejected When a slip reaches the paper ejection detector after printing is performed and the slip is fed light emitted by the LED...

Page 199: ... paper The roll paper end detector includes an LED and a phototransistor The reflection of light is used to detect the presence of paper When there is paper in the feed path or when you are performing semi autoloading LED light is reflected when the roll paper is inserted This changes the output level of the phototransistor The change in output level is detected and is used as the detection signal...

Page 200: ...rescribed amount The tip of the N E detector thus moves toward the core of the roll paper center thereby turning OFF the microswitch to generate a detection signal Figure D 17 Validation detector mechanism The validation detector mechanism is located near the bottom of the paper insertion position to detect the presence of a validation sheet The validation detector mechanism includes an LED and a ...

Page 201: ...It detects lever drive motor rotation and generates the signal which determines the timing for energizing of the lever coil which in turn controls opening closing of the platen lever and opening closing of the sub slip feed roller Figure D 19 Figure D 20 Lever drive motor Lever drive motor detector plate Lever drive motor gear Lever motor T P detector GND High 5V GND Low When light is interrupted ...

Page 202: ...er detector mechanism The rear cover detector is located in the back right side of the printer mechanism It detects whether the rear cover is open or closed This detector is comprised of an LED and phototransistor When the cover is closed the light interrupter on the back of the cover interrupts the optical axis When the cover is open the optical axis is opened which changes the output level of th...

Page 203: ...uilt into the paper feed unit detects its presence The platen lever open close cam rotates and the sub paper feed roller and sub paper hold rollers close to grasp the paper and the rotation of the paper feed motor starts the semi autoloading As shown in Figure D 24 when idling the platen lever open and close cam holds the platen lever in the direction of arrow a and the paper guide lever in the di...

Page 204: ...t of the paper feed roller is directed up by the protrusions in center of assist paper guide and the assist paper guide is rotated in the direction of arrow f and is closed See Figure D 25 In this configuration you cannot insert roll paper to the paper feed roller in slip mode Figure D 24 Roll paper Protrusions Assist paper guide Paper hold roller aper hold roller shaft Paper guide roller Sub pape...

Page 205: ...f gears 1 Paper feed motor gear 2 Paper feed transmission gear 3 J S change gear 4 Paper feed reduction gear 5 Take up drive gear 6 Paper feed gears Roll paper Protrusions Assist paper guide Paper hold roller aper hold roller shaft Paper guide roller Sub paper feed roller Sub paper feed shaft Paper end detector Paper feed roller shaft Paper feed frame Guide roller Platen Platen lever Paper feed le...

Page 206: ...d amounts is built into the sub paper feed roller See Figure D 27 The sub paper feed clutch spring and related parts slip to prevent slack in the roll paper Figure D 26 Figure D 27 Roll paper Paper feed roller Paper feed gears Paper feed reduction gear Paper feed transmission gear Paper feed motor gear Paper feed motor J S change gear Take up drive gear Sub paper feed roller Sub paper feed shaft S...

Page 207: ...m This mechanism consists of a take up frame take up drive gear take up belt take up gear take up pulley take up clutch and take up shaft all of which ensure stable take up operation See Figure D 28 Figure D 28 ake up drive gear Take up belt Main frame Take up pulley Take up gear Take up frame Take up shaft Paper feed unit ...

Page 208: ...lt take up pulley take up clutch and take up gear See Figure D 29 Take up force is transmitted to the take up shaft by the movement of the take up clutch spring between the take up pulley and take up gear This rotates the take up shaft in the direction indicated by arrow a winding up the printed paper roll Figure D 29 Take up shaft Take up belt Take up drive gear Paper feed reduction gear J S chan...

Page 209: ...m such as a paper jam Figure D 30 Opening mechanism 1 Press the on the two paper feed frame fixing levers indicated by arrow a in Figure D 30 2 The paper feed frame fixing lever comes off the main frame allowing the entire paper feed unit to rotate on the paper feed frame shaft See Figure D 31 3 Rotate the entire paper feed unit approximately 90 in the direction indicated by arrow b See Figure D 3...

Page 210: ...or other problem has been fixed rotate the entire paper feed unit in the opposite direction from when the mechanism was opened 2 Lightly press down on the upper part of the paper feed unit to lock the paper feed frame fixing lever to the main frame Paper feed unit Paper feed frame shaft Main frame b ...

Page 211: ...eed motor on top of the paper feed unit The end of the release lever is located very near the paper hold roller When you push the part of the lever labeled PUSH in the direction indicated by arrow b the paper hold roller on the paper hold roller shaft is moved in the direction indicated by arrow a releasing the connection with the paper feed roller releasing any paper in between Figure D 32 Roll p...

Page 212: ...the release lever rotates around the pivot in the direction of arrow c and the end of the release lever pushes out the end of the paper hold roller shaft in the direction indicated by arrow a After the paper is released the paper hold roller and release lever are returned to their original positions by two paper hold roller springs built into both ends of the paper hold roller shaft Figure D 33 b ...

Page 213: ...the slip guide lower frame in the direction indicated by the arrow the slip paper goes in as far as the form stopper and is positioned See Figure D 34 When the paper feed motor rotates several times forward and reverse while energizing the J S change solenoid the J S change lever will switch the J S change gear that had been engaged with the roll paper feed gear so that it is engaged with the slip...

Page 214: ...Appendix D 26 Product Overview Rev D Confidential Figure D 35 Paper feed reduction gear Main frame Paper feed reduction gear J S change gear J S change lever J S change solenoid ...

Page 215: ...e time as this the sub spring feed lever moves the form stopper in the direction indicated by arrow b See Figure D 34 completing preparations for feeding the slip away from the form stopper slip path See Figures D 34 36 Figure D 36 After this the paper feed motor is rotated a number of steps corresponding to the slip paper format in the direction indicated by the arrow The rotation force is transm...

Page 216: ... following parts Paper feed motor gear for paper feed motor Paper feed transmission gear J S change gear J S change solenoid engages this with the slip paper feed gear Paper feed reduction gear Slip transmission gear Slip drive gear The driving force of the paper feed motor is transmitted to the slip feed roller and slip hold roller simultaneously via the gears creating the force to feed the slip ...

Page 217: ...e slip paper roller and platen are opened Validation paper can be inserted from the top of the printer mechanism in this state When the trailing edge of validation paper is detected the detection signal is output This signal is received the lever drive motor is started and the platen lever moves in the direction of arrow b in Figure D 8 This causes the slip feed roller and the slip hold roller to ...

Page 218: ...intermediate gear Meshing of these gears transmits the driving force of the ribbon drive gear to the ribbon take up gear via the ribbon intermediate gear rotating the ribbon take up shaft mounted at the top in the direction shown by arrow D See Figure D 39 The ribbon is fed when the ribbon feed roller in the ribbon cassette meshes with this ribbon take up shaft On the other hand when the head carr...

Page 219: ...revents ribbon slack See Figure D 39 Figure D 39 MICR Mechanism Factory Option The MICR unit is comprised of the following parts See Figure D 40 MICR head MICR frame MICR lever MICR fixing MICR solenoid The MICR unit is located in the slip paper path B F C D G E A Transmission gear Ribbon reduction gear Ribbon take up shaft Carriage transmission pulley Ribbon take up gear Ribbon intermediate gear ...

Page 220: ...inst the MICR head Next the paper feed motor rotates at the MICR reading speed in the same way as for slip paper feed transporting the check When the MICR characters on the check pass over the MICR magnet in front of the MICR unit they are magnetized The check is transported farther and when the characters pass through the MICR unit they are read by the MICR head shown in Figure D 41 In the event ...

Page 221: ...e check again if the MICR characters cannot be recognized the first time Note 2 When endorsement printing and printing on the front of the check are not performed the check is fed forward and ejected upon completion of the MICR reading process Figure D 41 MICR lever MICR head MICR fixing MICR lever MICR solenoid ...

Page 222: ... autocutter on this printer has one stationary blade and two movable blades a scissors blade that moves rotatively and a sliding blade that moves in a straight line In operation it employs a compound blade type autocutter mechanism that leaves the area between the scissors blade and the sliding blade uncut The structure requires that the stationary blade the scissors blade and the sliding blade be...

Page 223: ...the cutter motor is transmitted to the autocutter deceleration gear and cutter worm gear from the cutter motor gear to rotate the cutter drive gear A micro switch is attached to the cutter cover The micro switch detects the position of the blades scissors blade and sliding blade The cutter drive gear is a cam The micro switch linked to the cam is turned ON and OFF The cutter motor and micro switch...

Page 224: ...ereby comprising the link structure Coupled with the reciprocal rotation of the scissors blade the sliding blade moves reciprocally in a direct linear direction When the scissors blade and the sliding blade is at its idle position the micro switch is OFF open Clutch Mechanism These parts and drive mechanisms can be damaged when foreign matter enters between the movable blades scissors blade and sl...

Page 225: ...the movable blades scissors blade and sliding blade are not at their idle positions the cutter motor will rotate in reverse to automatically recover the movable blades scissors blade and sliding blade to their idle positions However there are cases in which they cannot be recovered with the force of the motor if there is trouble of some form or another In that case you can manually move the movabl...

Page 226: ...e autocutter mechanism will not operate normally if trouble occurs In such cases you can manually cut roll paper using the emergency cutter The emergency cutter is mounted on the cutter cover Figure D 45 Roll paper Emergency cutter Stationary blade Movable blades Scissors blade and sliding blade ...

Page 227: ...t mechanism drive unit MICR head unit factory option Main circuit board unit Memory circuit board unit Figure D 46 CN8 DKD DM Memory circuit board ROM RAM I F board Power supply unit Main circuit board assembly Roll paper NE sensor CN9 CN18 CN29 Switch CN2 CN22 CN5 CN1 CN27 CN30 CN28 CN6 Control panel LEDs Slip mechanism unit paper feed carriage impact head CN7 Autocutter unit MICR head MICR solen...

Page 228: ...ry circuit board is soldered to the main circuit board and cannot be removed Interface circuit board option CN18 Power supply unit VCC Power supply 5V Power supply G A Q5 Autocutter Memory board Slip transport carriage motor solenoids drive voltage supply Impact head MICR head voltage supply autocutter 24VB Power supply 24VC Power supply I F board DM SLIP paper feed SLIP carriage Sensor Solenoid I...

Page 229: ...bits may be used depending on specifications Circuit also is compatible with 16 Mbits reserved Access Speed 55 ns Table D 3 Font ROM specifications Item Specification Application Mainly for storage of fonts Capacity Standard 4 Mbit 8 Mbits may be used depending on specifications Circuit also is compatible with 16 Mbits reserved Access Speed 55 ns Table D 4 Volatile RAM specifications Item Specific...

Page 230: ...it CPU GA gate array Reset circuit Slip mechanism drive function Impact head drive circuit Platen open close MICR drive circuit MICR is factory option Paper feed motor drive function 000000H 0003FFH 000400H 1FFFFFH 400000H 4000FFH 800000H 8FFFFFH F00000H FFFFFFH CPU I O RAM EXT RAM INT 000C00H 000BFFH Gate Array Font ROM 4M or 8M Program ROM 4M or 8M CS1 0 CS0 0 CS3 0 CS2 0 ...

Page 231: ... Lever function drive circuit for paper feed path changeover MICR signal detection circuits factory option Detection circuits Autocutter drive circuit Input circuit Logic power circuit DIP switch read circuit Control panel display drive circuit Malfunction protective circuit DM interface circuit ...

Page 232: ...hermistor voltage D A Output Port 1 Carriage motor reference voltage Table D 7 CPU terminals and functions Port Terminal Pin Description Circuit Signal I O I O Definition Name No Name H L DAREFH 1 VCC DAREFL 2 GND DAOUT0 3 For thermal PF current setting THPF_DA OUT 5 256 0 256 DAOUT1 4 For impact CR current setting CR_DA OUT 5 256 0 256 DVCC 5 VCC PC0 6 Paper roll near end common for HB U175 ROL_N...

Page 233: ...al CLKREQ for asynchronous communication CLKREQ OUT PF5 RXD1 25 Serial CTS for asynchronous communication CTS IN PF6 CTS1 SCLK1 26 Serial IF_DET for asynchronous communication IF_DET IN DVCC 27 VCC NMI 28 VCC connection VCC IN P86 WAIT 29 HCTS HCTS IN AM0 30 CPU mode setting fixed to 1 CLK 31 Not used NC TEST0 32 Not used GND fixed TEST1 33 Not used GND fixed CLVSS 34 VSS CLVCC 36 VCC DVSS 37 GND ...

Page 234: ...OUT Not selected External RAM selected P80 CS0 60 ROM2 FONT CS_GA OUT Not selected GA selected DVCC 61 VCC P76 BUSAK 62 M190 motor drive signal 1 EP_MOTOR1 OUT Not driven Driven P75 BUSRQ 63 M190 motor drive signal 2 EP_MOTOR2 OUT Brake P74 64 Solenoid drive 1 LEVER1 OUT Open Driven P73 65 Solenoid drive 2 LEVER2 OUT Open Driven P72 WRLH 66 External memory write D8 15 WRH OUT P71 WRLL 67 External ...

Page 235: ...2 A18 95 External address bus A18 1 0 P61 A17 96 External address bus A17 1 0 P60 A16 97 External address bus A16 1 0 DVCC 98 VCC P57 A15 99 External address bus A15 1 0 P56 A14 100 External address bus A14 1 0 P55 A13 101 External address bus A13 1 0 P54 A12 102 External address bus A12 1 0 P53 A11 103 External address bus A11 1 0 P52 A10 104 External address bus A10 1 0 P51 A09 105 External addr...

Page 236: ...6 DKD1 DKD1 OUT OFF ON PH1 TC1 127 DKD2 DKD2 OUT OFF ON PH2 TC2 128 Drawer sensor 1 DKDS1 IN Terminal 24V Terminal GND PH3 TC3 129 DSW1 7 DSW1 7 IN OFF ON DVSS 130 GND PG0 AN0 131 24 VDC monitor 24V_RD IN PG1 AN1 132 Thermal head temperature TH_THERM TH_THERM IN PG2 AN2 133 Impact head temperature IM_THERM IM_THERM IN PG3 AN3 134 MICR data MIRD IN PG4 AN4 135 TOF SLIP_TOF IN PG5 AN5 136 BOF SLIP_B...

Page 237: ... SD_INT RTS 8 Synchronous serial RTS RTS RTS PC7 9 Port PC MSL1 MSL1 IN Yes No PC6 10 Port PC MSL2 MSL2 IN Yes No PC5 11 Port PC MSL3 MSL3 IN Yes No PC4 12 Port PC DSW2 1 DSW2 1 IN DSW OFF DSW ON PC3 13 Port PC DSW2 2 DSW2 2 IN DSW OFF DSW ON PC2 14 Port PC DSW2 3 DSW2 3 IN DSW OFF DSW ON VSS1 15 Fixed power source GND PC1 16 Port PC lever timing detector LEVER_DT IN Light received Light blocked P...

Page 238: ...8 Impact head common changeover HEADCOM1 OUT Driven Blocked PI3 TIMI 39 Timer in input TIMI IN VSS3 40 Fixed power source GND PI2 HEADCOM2 41 Shuttle head common changeover HEADCOM2 OUT Driven Blocked PE5 42 CR motor I10 CR_I10 OUT PE4 43 CR motor I20 CR_I20 OUT PE3 44 CR motor I11 CR_I11 OUT PE2 45 CR motor I21 CR_I21 OUT PE1 46 CR motor PH1 CR_PH1 OUT PE0 47 CR motor PH2 CR_PH2 OUT PD7 48 Slip P...

Page 239: ...69 EJ Memory R B EJ_R B TEST 70 GA test pin GND A7 71 Address 7 A7 A6 72 Address 6 A6 A5 73 Address 5 A5 A4 74 Address 4 A4 A3 75 Address 3 A3 A2 76 Address 2 A2 A1 77 Address 1 A1 VDD5 78 Fixed power source VCC A0 79 Address 0 A0 D7 80 Data 7 D7 D6 81 Data 6 D6 D5 82 Data 5 D5 D4 83 Data 4 D4 D3 84 Data 3 D3 D2 85 Data 2 D2 D1 86 Data 1 D1 D0 87 Data 0 D0 WR 88 Write WRL OUT RD 89 Read RD IN VSS6...

Page 240: ...Block 2 selected PH3 DI1 96 Thermal head block 1 DATA TH_D1 OUT Printed Not printed PH2 DI2 97 Thermal head block 2 DATA TH_D2 OUT Printed Not printed VSS7 98 Fixed power source GND PH1 SCLK 99 Thermal head SCLK H_SCLK OUT Data input at leading edge PH0 LAT 100 Thermal head DATA latch TH_LAT OUT Retained Latched Table D 8 GA terminals and functions Terminal Name Pin No Description Circuit Signal N...

Page 241: ...c power source VCC Standard output 5V and sets the reset signal to LOW when the VCC is 4 2V or lower The reset signal is restored from LOW to HIGH 50 ms after the VCC exceeds 4 2V The CPU and GA operate normally after reset The main specifications of the reset IC are shown below Reset also can be performed by sending the reset signal from the host interface Table D 9 Reset IC specifications Item M...

Page 242: ...is applied here the printer is reset In the reset status the CPU and GA are initialized but the power remains on and this status differs from when the power is turned on again It is necessary to keep this in mind The reset circuit is shown below Figure D 49 VCC RESET DSW2 7 DSW2 8 U1 PST596 M R 1 SUB 2 GND 3 VOUT 4 VCC 5 C3 0 1uF 1 2 Q1 DTA114EK 2 3 1 DA1 DAP202 1 3 2 R2 10K 1 2 ...

Page 243: ... 10K E P D E P F HEAD 7 E P COM HP_DET HEAD COM 3 5 7 E P COM E P B E P C HEAD 1 VCC HEAD 2 HEAD COM 1 2 9 HEAD 5 E P A HEAD COM 8 4 6 HEAD 4 E P H E P G E P COM NC HEAD 9 HEAD 8 COMMON 24V SHEAD5 SHEAD2 CR_HP HH7 EP_D SHEAD4 SHEAD1 SHEAD3 HH1 SHEAD8 HH9 EP_E EP_F EP_H HH2 SHEAD9 HH4 EP_C HH5 EP_G SHEAD6 HH6 HH3 EP_A HH8 EP_B SHEAD7 D7 1 3 4 D10 1 2 3 4 5 6 QM7 3 5 2 1 4 QM5 3 5 2 1 4 CN28 1 1 2 2...

Page 244: ...7 is channeled to the solenoid With this printer the head drive signal is controlled by the GA and at the same time the COMMON 24V power source voltage side is chopped enabling efficient head drive The chopping circuit is shown below Figure D 51 The HEADCOM1 common drive signal driven by GA U30 drives the Q7 MOSFET Since it is necessary to drive Q7 at high speed 100 KHz or less a speed up circuit ...

Page 245: ... is set to an arbitrary value 0 VCC by firmware RS is the resistance value 0 68 Ω of R78 and R101 Accordingly the current to the motor is calculated by the logic level of I0 I1 judged by VREF1 2 terminal voltage Table D 10 Logical level of terminal I0 I1 and output current I0 I1 Output Current L L VREF 10 Rs H L VREF 15 Rs L H VREF 30 Rs H H 0 24VC VCC PWR M CR_B CR_B CR_A CR_I11 CR_B CR_A CR_PH2 ...

Page 246: ...OLD of the GA U30 port The current calculation procedure is described below Current VREF 10 Rs RS 1Ω VREF VCC or voltage obtained by voltage division ratio of R105 and R106 As for the carriage motor drive circuit the driver IC is operated by setting the 24VSW1 signal HIGH VCC PWR 24VC VCC 24VC M SLIP PF PF_I21 PF_A PF_A PF_B PF_B PF_I11 PF_PH2 PF_PH1 PF_HOLD 24VSW1 R102 1 1W 1 1 2 R117 1K 1 2 C54 ...

Page 247: ...ation An NPN Darlington transistor is used for lever motor drive Due to the structure of the lever motor a brake circuit is not required The lever motor is driven using the ELV_M1 output signal from the GA The lever motor rotates when LEV_M1 LOW The motor cannot be driven when the VCC PWR is not being supplied Furthermore the Q41 NPN Darlington transistor incorporates a CE Zener to perform kickbac...

Page 248: ... solenoids driven by 24V Simple drive of lever A and lever B is performed by an NPN Darlington transistor LEVER1 and LEVER2 are output signals from the CPU Lever A Driven by a LOW level of the LEVER1 signal Lever B Driven by a LOW level of the LEVER2 signal Figure D 56 VCC 24VC LEVER LEVER1 LEVER2 LEVER A LEVER B CN30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30...

Page 249: ...levels 24V 13V in opposite directions Therefore the MICR solenoid has a complicated circuit configuration The MICR solenoid is driven by MICR_SOL1 and MICR_SOL2 output signals from the CPU MICR_SOL1 determines the direction in which electricity is sent and MICR_SOL2 drives the MICR solenoid The logic is described in the following table Table D 11 MICR_SOL1 2 and MICR MICR_SOL1 MICR_SOL2 MICR Solen...

Page 250: ... recognition Unlike conventional printing ink magnetic ink includes iron powder or some other magnetic element which gives the ink itself magnetic properties Application of a magnetic field on one side of characters printed in magnetic ink on a check causes the characters to be magnetized as shown in the illustration below Figure D 59 24V 13V MICR_SOL1 MICR_SOL2 QM8 7 NPN QM8 9 NPN Q28 PNP Q32 PNP...

Page 251: ...t photo Voltage drop of load resistor R69 is read by the AD port of the CPU BOF Slip detection Transparent photo Voltage drop of load resistor R68 is read by the AD port of the CPU Paper ejection Slip detection Reflective photo Voltage drop of load resistor R66 is read by the AD port of the CPU Validation Slip detection Reflective photo Voltage drop of load resistor R68 is read by the AD port of t...

Page 252: ...utput is performed by the GA port Lever Timing Detector Mechanism Photo IC Logical judgment of photo IC output is performed by the GA port Front Cover Case Transparent photo Logical judgment of load resistor R88 voltage drop is performed by GA port Rear Cover Case Transparent photo This signal is used for thermal unit sensor Rear Cover TM H6000 Case Photo IC Logical judgment of photo IC output is ...

Page 253: ...DC motor driver made by Toshiba TA8428K The autocutter outputs signals from the GA U30 and is controlled by AC_M1 and AC_M2 Figure D 62 Autocutter Drive Circuit Table D 14 AC_M1 AC_M2 and Operation AC_M1 AC_M2 Operation L L OFF H L Forward L H Reverse H H Brake VCC 24VB AC_RESET AC_M2 AC_M1 D2 D3 R34 R35 R32 R33 R27 CN23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CN7 1 2 3 4 C15 Q5 IN1 IN2 OUTA OUTA VM GND ...

Page 254: ...rough the R2 fuse resistor KOA RF73B2HTE0 51 R3 may burn out in the event of a malfunction in the U11 area R3 will also burn out in the event of excessive VCC voltage approx 7 5 V or more This fuse resistor cannot be replaced Therefore the circuit cannot be repaired by replacing the R3 in the event it has burned out due to a circuit malfunction Table D 13 Power source specifications Item Min Typ M...

Page 255: ... This circuit controls the rush current An external power supply is connected to the CN18 A switch is connected to CN29 When the switch is turned ON the voltage at Q61 Gate Source is 0 because Q61 is OFF and C605 is not energized For that reason there is no current flowing After that the voltage to Gate Source gradually rises according to the time constant determined by C605 and R245 to gently rai...

Page 256: ...hanical power for slip system and journal system 24V DM None None DM power DK power VCC None None Starts after power switch is turned ON VCC PWR 24VSW1 GA U30 5 V used for slip system and journal system VCC_SEN SEN_PWR CPU U3 Power for paper detection sensor for slip system 24VSW1 R96 1 2 Q45 1 2 3 C42 P N C40 1 2 CN18 1 2 3 4 1 2 3 SH C44 P N 24VSW1 C41 1 2 VCC PWR2 Q44 1 2 3 4 5 6 7 8 S1 G1 S2 G...

Page 257: ...witches As shown by the circuit for the display functions in the previous section input is enabled by two signals SW_SLIP SW_RPT LOW status is input when the panel switch is pressed HIGH is input when the switch is not pressed Table D 15 Types of displays Circuit Signal Color Application LED_POWER Green Lights during normal operation LED_ERROR Red Indicates printer error LED_PAPER Red Indicates pr...

Page 258: ...PU operation monitor CPU runaway causes a WDT watch dog timer overflow resulting in output of LOW status from the CPU WDT output terminal This is connected to the GA TIMI input terminal and when the GA detects the LOW status for a certain time it goes to the reset status and is not restored Mechanism malfunction monitor When the thermal head becomes abnormally hot the GA TIMI input terminal goes L...

Page 259: ...nterface Boards This printer can accommodate an exchangeable interface board The following types of interface boards can be installed As new interfaces are developed they may become available for this printer UB S01 RS 232C interface UB S02 RS 485 interface UB P02 IEEE 1284 interface DM The EPSON DM series customer display can be connected to CN8 However the DM can only operate with CN8 when the U...

Page 260: ... unsafe 24VC line Replace the fuse after eliminating the cause of the burn out Burn out may lead to a malfunction R451002 Littelfuse Inc Fuse F4 Used to protect against unsafe circuit elements It will burn out in the event of a circuit board problem The problem cannot be corrected by replacing the fuse Replace the fuse after eliminating the cause of the burn out Burn out may lead to a malfunction ...

Page 261: ... D 17 DIP switch 1 settings Switch No Function ON OFF 1 Data receive error Ignored printed 2 Receive buffer capacity 45 bytes 4KB 3 Handshake XON XOFF DTR DSR 4 Bit length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection See table below 8 Table D 18 Baud rate selection Transfer Rate Switch No bps 7 8 2400 ON ON 4800 OFF ON 9600 ON OFF 19200 OFF OFF ...

Page 262: ...ion Multi Standard 4 TM U375 print width compatibility mode Compatible Not compatible 5 Used internally Fixed to OFF 6 Used internally Fixed to OFF 7 Pin 6 reset signal Enabled Disabled 8 Pin 25 reset signal Enabled Disabled Table D 20 TM U375 print width compatibility mode settings SW2 4 SW2 3 Font Character Dot Spacing Printing Line Count Total No of Dots ON OFF 5 x 9 1 dot 33 lines 400 half dot...

Page 263: ...h No Function ON OFF 1 Handshake operation BUSY condition Receive buffer full Offline or receive buffer full 2 Not used DM D connection Fixed to OFF 3 Printing line count selection Multi Standard 4 TM U375 print width compatibility mode Compatible Not compatible 5 Used internally Fixed to OFF 6 Used internally Fixed to OFF 7 Reserved dedicated serial I F Fixed to OFF 8 31 pin reset signal Fixed to...

Page 264: ...Sheets can be inserted in two ways when using validation paper use the drop in method by inserting from the top when using slip paper insert from the front A mechanical form stopper stabilizes slip sheet insertion Page mode allows printing of any font Many types of check printing are possible Has highly operable roll paper easy loading of roll paper and one touch T U paper take up Using the packag...

Page 265: ...Paper width 82 5 mm 0 5 mm or 76 mm 0 5 mm 3 25 0 02 or 2 99 0 02 External diameter Max φ60 mm 2 36 for 1 ply paper and journal paper only Max φ89 mm 3 5 for receipt paper only Max φ83 mm 3 27 for 2 ply paper and 3 ply paper only However always take up the last sheet Core Min 10 mm 0 39 for inner diameter Single sheet paper slip validation paper Paper type Regular paper pressure sensitive carbonle...

Page 266: ...s made by EPSON were used for testing purposes Checks should be free of curls bends wrinkles etc Autocutter Partial cut Cutting with one point left uncut Table D 27 Thickness of transfer paper Type Paper Thickness Base paper 0 07 mm 0 12 mm Copy paper and original paper 0 04 mm 0 07 mm Thermal transfer carbon Paper Approximately 0 035 mm Total thickness 0 09 mm 0 31 mm includes paper thickness of ...

Page 267: ... 5 45 C 41 113 F Storage 10 50 C 14 122 F excluding paper ribbon Humidity Operating 10 90 RH without condensation Storage 10 90 RH without condensation excluding paper ribbon Table D 30 Internal buffer capacity Buffer Capacity Receive buffer 45 bytes or 4KB selected by DIP switch Communication baud rate 2400 4800 9600 19200 bps NV bit image storage area 384KB User NV memory 1KB Table D 31 Current ...

Page 268: ...ions Item Specifications Data transfer method Serial Synchronization Asynchronous Handshake DTR DSR or XON XOFF control Signal level MARK 3V 15 V Logic 1 SPACE 3V 15 V Logic 0 Stop bit 1 bit fixed Printer connector D SUB25 female connector Table D 37 Bidirectional parallel interface specifications Item Specifications Data transfer method 8 bit parallel Synchronization By externally supplied Strobe...

Page 269: ... are set by the DIP switches The data stop bit is fixed at 1 bit Table D 38 RS 485 serial interface specifications Item Specifications Data transfer method Serial Synchronization Asynchronous Handshake DTR DSR or XON XOFF control Signal level 2 5V 5 V Logic 1 0 0V 0 8 V Logic 0 Baud rate 2400 4800 9600 19200 bps Parity None even odd Stop bit 1 bit or more Connector D SUB25 female ...

Page 270: ...Appendix D 82 Product Overview Rev D Confidential ...

Page 271: ...eration shaft SHAFT DETECTION GEAR A C 1 F 2 183 Back case CASE BACK AA 1 F 1 129 Back frame FRAME BACK A 1 F 2 167 Backup paper guide cap CAP BACK UP PAPER GUIDE 1 F 8 678 Belt drive cap CAP BELT DRIVE 2 F 7 603 Belt plate PLATE BELT 1 F 3 4 684 Belt tension spring SPRING BELT TENSION 1 F 7 630 Break cap CAP BREAK A 1 F 2 168 Break plate sub assembly PLATE BREAK SUB ASS Y A 1 F 2 174 Break spring...

Page 272: ...F 2 179 Cutter lead wire assembly LEAD WIRE CUTTER ASS Y AA 1 F 2 192 Cutter motor assembly MOTOR CUTTER ASS Y 1 F 2 191 Cutter plate cover COVER CUTTER PLATE AB 1 F 2 165 Cutter worm gear GEAR CUTTER WORM 1 F 2 184 Drive lever coil cover COVER DRIVE LEVER COIL 1 F 5 6 671 Endorsement platen shutter SHUTTER ENDORSEMENT PLATEN 1 F 5 6 680 E ring 1 2 RETAINING RING TYPE E 1 2 F UC F 9 778 E ring 1 5...

Page 273: ...1 Holder plate type B PLATE HOLDER B 1 F 1 160 Holder spring SPRING HOLDER A 1 F 1 142 IC cover IC COVER 1 F 1 111 Intermediate cable type A CABLE INTERMEDIATE A 1 F 7 734 Intermediate cable type B CABLE INTERMEDIATE B 1 F 7 735 Intermediate cable type C CABLE INTERMEDIATE C 1 F 7 736 Intermediate cable tube TUBE CABLE INTERMEDIATE 1 F 7 771 Intermediate circuit board assembly INTERMEDIATE CIRCUIT...

Page 274: ...WIRE Z 1 F 3 4 765 Left cover plate sub assembly PLATE COVER SUB ASS Y L 1 F 2 177 Left hook button BUTTON HOOK L 1 F 2 169 Left hook spring SPRING HOOK L 1 F 2 173 Left platen lever shaft SHAFT PLATEN LEVER L 1 F 8 626 Lever coil mounting plate sub assembly MOUNTING PLATE LEVER COIL SUB ASSEMBLY 1 F 5 6 695 Lever drive coil type A COIL LEVER DRIVE A 1 F 5 6 621 Lever drive coil type B COIL LEVER ...

Page 275: ...ICR LEVER 1 F 9 784 MICR lever guide shaft SHAFT MICR LEVER GUIDE 2 F 9 796 MICR lever spring SPRING MICR LEVER 1 F 9 790 MICR roller shaft SHAFT MICR ROLLER 2 F 9 777 MICR shield cover type A COVER MICR SHIELD A 1 F 9 785 MICR shutter SHUTTER MICR 1 F 5 679 MICR solenoid SOLENOID MICR 1 F 9 789 Micro switch MICROSWITCH 1 F 1 119 Motor shield case CASE MOTOR SHIELD 1 F 4 780 Motor shield cover COV...

Page 276: ... 1 F 3 4 643 Paper feed frame stopper STOPPER PAPER FEED FRAME 1 F 3 4 677 Paper feed gear GEAR PAPER FEED 4 F 8 648 Paper feed motor MOTOR PAPER FEED 1 F 3 4 739 Paper feed reduction gear PAPER FEED REDUCTION GEAR 2 F 3 4 729 Paper feed roller ROLLER PAPER FEED 1 F 8 666 Paper feed roller spring SPRING PAPER FEED ROLLER 2 F 8 654 Paper feed transmission gear GEAR PAPER FEED TRANSMISSION 1 F 5 6 6...

Page 277: ...y RIBBON DRIVE PLATE ASSEMBLY 1 F 7 706 Ribbon feed spring RIBBON FEED SPRING 1 F 7 601 Ribbon intermediate gear GEAR RIBBON INTERMEDIATE 1 F 7 683 Ribbon reduction gear GEAR RIBBON REDUCTION 1 F 7 682 Ribbon take up gear assembly GEAR RIBBON TAKE UP ASSEMBLY 1 F 7 712 Right cover plate sub assembly PLATE COVER SUB ASS Y R 1 F 2 176 Right hook button BUTTON HOOK R 1 F 2 170 Right hook spring SPRIN...

Page 278: ... P S TITE P4 3X6 F ZN F 7 775 Screw C P S tite 3X6 C P S TITE SCREW 3X6 F ZN F 1 155 Screw C P T B 3X10 C P T B SCREW 3X10 F ZN F 1 2 103 Slip B O F detector assembly SLIP B O F DETECTOR ASSEMBLY 1 F 5 6 696 Slip drive gear GEAR SLIP DRIVE 4 F 3 4 5 6 8 649 Slip feed roller ROLLER SLIP FEED 1 F 8 668 Slip feed roller holder HOLDER SLIP FEED ROLLER 1 F 8 659 Slip feed roller shaft holder SHAFT HOLD...

Page 279: ...UB SLIP FEED ROLLER 1 F 5 6 660 Sub slip hold roller ROLLER SUB SLIP HOLD 1 F 5 6 667 Sub slip hold sleeve SLEEVE SUB SLIP HOLD 2 F 5 6 770 Support plate PLATE SUPPORT A 1 F 1 137 Switch screw SCREW SWITCH 1 1 F 2 187 Table holder HOLDER TABLE A 1 F 1 138 Take up assembly TAKE UP ASSEMBLY 1 F 1 126 Take up drive gear GEAR TAKE UP DRIVE 1 F 3 4 646 Take up frame assembly FRAME TAKE UP ASSEMBLY 1 F ...

Page 280: ... INSULATOR SPACER 2 F 1 114 N E detector holder HOLDER N E DETECTOR 1 F 1 116 N E detector lever LEVER N E DETECTOR 1 F 1 117 Screw C B B tite 2X8 C B B TITE 2X8 F ZN F 1 118 Micro switch MICROSWITCH 1 F 1 119 Hexagon nut H N 1 3 F ZN F 1 120 N E detector spacer SPACER N E DETECTOR 1 F 1 121 Caution seal SEAL CAUTION 1 F 1 122 Connector plate type AA PLATE CONNECTOR AA 1 F 1 123 Rubber foot RUBBER...

Page 281: ...eive roller ROLL PAPER RECEIVE ROLLER 3 F 1 154 Hexagon lock screw inch type HEXAGON LOCK SCREW 2 F 1 155 Screw C P S tite 3X6 C P S TITE SCREW 3X6 F ZN F 1 155 Power switch cover COVER POWER SWITCH BA 1 F 1 156 Control panel label LABEL SWITCH PANEL AA 1 F 1 157 Operation label type EA LABEL OPERATION EA 1 F 1 158 Roll paper guide GUIDE ROLL PAPER 1 F 1 159 Holder plate type B PLATE HOLDER B 1 F ...

Page 282: ...ad wire assembly LEAD WIRE CUTTER ASS Y AA 1 F 2 192 Plain washer 3X0 5X7 PLAIN WASHER M3X0 5X7 F NI 1 F 2 193 Ferrite core Ferrite core 1 2 118 F 2 195 Main circuit board unit with MICR MAIN CIRCUIT BOARD UNIT 1 F 1 201 Main circuit board unit without MICR MAIN CIRCUIT BOARD UNIT 1 F 1 201 Parallel I F circuit board unit PARALLEL I F CIRCUIT BOARD UNIT 1 F 1 202 RS 232 I F circuit board unit RS 2...

Page 283: ...stopper spring SPRING FORM STOPPER 1 F 5 6 620 Lever drive coil type A COIL LEVER DRIVE A 1 F 5 6 621 Lever drive coil type B COIL LEVER DRIVE B 1 F 5 6 622 Nose guide GUIDE NOSE 1 F 7 623 Platen lever assembly LEVER PLATEN ASSEMBLY 1 F 8 624 Platen lever spring SPRING PLATEN LEVER 1 F 8 625 Left platen lever shaft SHAFT PLATEN LEVER L 1 F 8 626 Right platen lever shaft SHAFT PLATEN LEVER R 1 F 8 ...

Page 284: ...b slip feed lever spring SPRING SUB SLIP FEED LEVER 1 F 5 6 656 Paper release lever LEVER PAPER RELEASE 1 F 8 657 Paper guide lever LEVER PAPER GUIDE 1 F 8 658 Slip feed roller holder HOLDER SLIP FEED ROLLER 1 F 8 659 Sub slip feed roller holder HOLDER SUB SLIP FEED ROLLER 1 F 5 6 660 Slip guide upper frame FRAME SLIP GUID UPPER 1 F 5 6 661 Slip guide lower frame type B FRAME SLIP GUID LOWER B 1 F...

Page 285: ...sembly ROLLER SUB SLIP FEED ASSEMBLY 1 F 5 6 694 Lever coil mounting plate sub assembly MOUNTING PLATE LEVER COIL SUB ASSEMBLY 1 F 5 6 695 Slip B O F detector assembly SLIP B O F DETECTOR ASSEMBLY 1 F 5 6 696 Validation detector assembly VALIDATION DETECTOR ASSEMBLY 1 F 5 6 697 Paper feed frame assembly PAPER FEED FRAME ASSEMBLY 1 F 8 698 Sub paper feed roller assembly ROLLER SUB PAPER FEED ASSEMB...

Page 286: ...gear PAPER FEED REDUCTION GEAR 2 F 3 4 729 Crank shaft holder CRANK SHAFT HOLDER 6 F 5 6 8 730 Paper feed trigger claw spring PAPER FEED TRIGGER CROW SPRING 3 2 F 5 6 731 Paper feed trigger attraction plate PAPER FEED TRIGGER ATTRACTIVE PLATE 2 F 5 6 732 Carriage motor MOTOR CARRIAGE 1 F 7 733 Intermediate cable type A CABLE INTERMEDIATE A 1 F 7 734 Intermediate cable type B CABLE INTERMEDIATE B 1...

Page 287: ...WIRE Z 1 F 3 4 765 Slip hold roller sleeve SLEEVE SLIP HOLD ROLLER 1 F 3 4 766 Slip hold roller spring SPRING SLIP HOLD ROLLER 1 F 3 4 767 Gear train cover COVER GEAR TRAIN 1 F 7 768 Intermediate circuit board cover COVER INTERMEDIATE CIRCUIT BOARD 1 F 7 769 Sub slip hold sleeve SLEEVE SUB SLIP HOLD 2 F 5 6 770 Intermediate cable tube TUBE CABLE INTERMEDIATE 1 F 7 771 C ring 5103 21 C RING 5103 21...

Page 288: ...R fixing MICR FIXING 1 F 9 788 MICR solenoid SOLENOID MICR 1 F 9 789 MICR lever spring SPRING MICR LEVER 1 F 9 790 MICR fixing sheet SHEET MICR FIXING 1 F 9 791 MICR frame assembly FRAME MICR ASSEMBLY 1 F 9 792 Screw C P S P2 2 5X5 C P S P2 2 5X5 F Zn F 9 793 Screw C P S 2 6X8 C P S SCREW 2 6X8 F ZN F 9 794 Head seal SEAL HEAD 1 F 7 795 MICR lever guide shaft SHAFT MICR LEVER GUIDE 2 F 9 796 name ...

Page 289: ... 202 155 123 158 132 131 157 139 110 106 162 149 204 600 102 109 112 113 114 109 113 114 108 133 106 108 135 126 159 160 161 103 151 154 154 103 146 103 119 118 152 105 121 125 142 141 137 147 205 117 143 116 120 124 122 203 127 124 124 103 148 156 103 106 136 138 107 107 155 107 107 107 107 201 206 106 106 106 111 140 128 130 207 134 104 103 144 129 153 202 112 ...

Page 290: ...U675P with autocutter Service Manual Confidential Autocutter Assembly A 173 188 181 184 189 193 180 182 185 186 187 192 183 178 107 165 102 191 179 163 169 102 102 102 175 102 172 170 164 177 176 164 164 167 103 102 168 171 209 174 103 208 163 195 ...

Page 291: ...Confidential Mechanism Assembly without MICR 725 635 738 714 102 690 609 714 713 610 645 721 166 616 717 721 628 739 760 761 762 691 714 636 692 715 764 763 765 677 684 726 610 766 767 726 717 646 721 729 726 647 647 651 607 726 716 726 727 774 721 650 647 649 721 728 724 721 729 643 ...

Page 292: ...l Mechanism Assembly with MICR 102 725 635 738 714 690 609 714 713 610 645 721 616 717 721 628 781 725 166 739 780 779 726 726 760 761 762 691 714 636 692 715 764 763 765 677 684 726 610 766 767 726 717 646 721 729 726 647 647 651 607 726 716 726 727 774 721 650 647 649 721 728 724 721 729 643 ...

Page 293: ...21 610 726 680 703 748 749 750 661 667 613 612 726 726 726 726 671 732 732 621 622 731 731 609 609 695 726 726 662 673 606 696 609 742 743 744 726 737 705 745 746 747 704 726 726 719 649 721 610 730 723 637 721 686 740 741 656 687 620 719 618 660 725 724 619 694 615 614 773 617 730 644 726 693 679 697 757 758 759 776 672 770 770 ...

Page 294: ... 610 726 680 703 748 749 750 661 667 613 612 726 726 726 726 671 732 732 621 622 731 731 609 609 695 726 726 662 673 606 696 609 742 743 744 726 737 705 745 746 747 704 726 726 644 719 649 721 610 730 723 637 721 686 656 687 620 719 618 660 725 724 619 694 615 614 773 617 730 726 693 697 757 758 759 776 776 672 770 770 740 741 ...

Page 295: ...U675P with autocutter Service Manual Confidential Carriage Assembly 608 623 689 720 603 633 775 707 720 720 629 706 634 768 712 682 683 601 720 603 632 753 751 752 605 611 709 775 775 733 630 734 726 775 775 769 735 771 708 736 723 631 726 726 795 ...

Page 296: ...85 711 685 626 718 721 604 604 668 670 659 624 674 654 678 666 642 663 654 625 658 652 724 724 721 664 772 665 772 653 627 648 722 718 602 649 701 609 676 655 722 730 669 609 698 699 663 641 640 648 722 730 602 648 722 702 655 722 720 663 719 657 638 710 720 756 755 754 722 722 730 721 675 602 730 639 648 722 ...

Page 297: ...Rev D Exploded Diagrams Appendix F 9 TM U675 U675P with autocutter Service Manual Confidential MICR Unit 785 782 786 793 790 792 783 777 777 787 791 788 789 778 784 794 778 796 796 ...

Page 298: ...ev D General Lubrication Point Diagrams Appendix G 1 TM U675 U675P with autocutter Service Manual Confidential Appendix G General Lubrication Point Diagrams TM U675 U675P A SERIAL PARALLEL G 36 G 36 G 36 ...

Page 299: ...Rev D General Lubrication Point Diagrams Appendix G 2 TM U675 U675P with autocutter Service Manual Confidential Autocutter Assembly A G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 15 G 15 G 36 195 ...

Page 300: ...Rev D General Lubrication Point Diagrams Appendix G 3 TM U675 U675P with autocutter Service Manual Confidential Mechanism Assembly without MICR G 36 G 36 G 48 G 48 G 36 G 36 G 36 G 36 G 36 ...

Page 301: ...Rev D General Lubrication Point Diagrams Appendix G 4 TM U675 U675P with autocutter Service Manual Confidential Mechanism Assembly with MICR G 36 G 36 G 48 G 48 G 36 G 36 G 36 G 36 G 36 ...

Page 302: ...ev D General Lubrication Point Diagrams Appendix G 5 TM U675 U675P with autocutter Service Manual Confidential Frame Assembly without MICR G 36 G 48 G 48 G 48 G 48 G 48 G 48 G 48 G 48 G 36 G 36 G 36 G 36 ...

Page 303: ...Rev D General Lubrication Point Diagrams Appendix G 6 TM U675 U675P with autocutter Service Manual Confidential Frame Assembly with MICR G 36 G 48 G 48 G 48 G 48 G 48 G 48 G 48 G 48 G 36 G 36 G 36 G 36 ...

Page 304: ...al Lubrication Point Diagrams Appendix G 7 TM U675 U675P with autocutter Service Manual Confidential Carriage Assembly G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 G 36 O 10 G 36 G 36 G 36 O 10 ...

Page 305: ...Rev D General Lubrication Point Diagrams Appendix G 8 TM U675 U675P with autocutter Service Manual Confidential PF Assembly G 36 G 36 G 36 G 48 G 48 G 48 G 48 ...

Page 306: ...Rev D General Lubrication Point Diagrams Appendix G 9 TM U675 U675P with autocutter Service Manual Confidential MICR Unit G 47 G 47 ...

Page 307: ...ug the power cord from the outlet immediately to avoid fire or shock You can use the enclosed power switch cover to make sure the power switch is not accidentally pressed The illustration below shows the power switch cover installed Figure I 1 Power switch cover If you need to turn the power on or off when the cover is installed you can insert a thin tool into one of the holes in the cover to oper...

Page 308: ...f the cover Figure I 2 Opening the front cover Opening and Closing the Roll Paper Cover Opening the Roll Paper Cover Pull the latch levers on the right and left sides of the roll paper cover in the direction of the arrow marked and push the cover so that it rotates toward the back to open the cover Figure I 3 Opening the Front Cover tab latch levers ...

Page 309: ...oll because paper feeding occurs automatically when you insert paper into the roll paper slot 3 Cut the receipt paper with the manual cutter shown below Figure I 4 4 Close the roll paper cover Press down on the roll paper cover until you hear a click Installing or Replacing the Paper Roll You need to install a paper roll even if you are using only the slip or validation sections of the printer Not...

Page 310: ...f the roll paper cover in the direction of the arrow marked and push the cover so that it rotates toward the back to open the cover Figure I 5 Opening the roll paper cover 4 Remove the used paper roll core if there is one 5 Insert the paper roll as shown Figure I 6 Inserting the paper roll latch levers ...

Page 311: ...te the correct direction that the paper should come off the roll Figure I 7 Correct direction 7 Turn ON the power supply to the printer 8 Hold both edges of the paper and insert it into the paper slot The paper is automatically fed into the printer Figure I 8 Inserting the paper into the paper slot paper slot ...

Page 312: ...nge Figure I 9 Inserting the end of the journal paper into the take up spool 10 Insert the take up spool and cut off the receipt paper as shown below Note When installing or replacing the roll paper use the manual cutter to cut the receipt paper If you cut the receipt paper using the emergency cutter on the autocutter after closing the roll paper cover there is the possibility of causing a paper j...

Page 313: ... these steps 1 Lift up the take up spool with the journal paper attached 2 Cut the paper off behind the paper insert slot 3 Push the release lever located on the right side of the paper roll Then pull out the remaining paper in the paper feed direction Always pull paper in the paper feed direction to prevent damage to the printer mechanism Figure I 11 Removing the paper ...

Page 314: ...he steps below Note Be sure to turn on the power before installing a ribbon cassette 1 Unpack the ribbon cassette and turn the knob in the direction shown to take up any slack Figure I 12 Turning the knob 2 Open the front cover of the printer using the tabs on each side of the cover Figure I 13 Opening the front cover 3 Remove the old ribbon if there is one knob tab ...

Page 315: ... the ribbon is seated correctly You can also look at the side of the slip unit to see if the ribbon is in the correct place See below Figure I 15 Making sure if the ribbon is seated correctly 6 Close the front cover of the printer EPSON recommends the use of genuine EPSON ribbon cassettes Ribbon cassettes not manufactured by EPSON may cause damage to your printer that is not covered by EPSON s war...

Page 316: ... right side of the paper is against the right side of the paper guide as shown below Figure I 16 Inserting slip paper Inserting Validaton Paper When you insert validation paper be sure that the right side of the paper is against the right side of the paper guide as shown below Figure I 17 Inserting validaton paper ...

Page 317: ...t is face up with the MICR characters on the right side The MICR characters must be next to the right edge of the paper inlet Figure I 18 Inserting a check 3 Insert the check straight into the paper inlet using the right edge of the paper inlet as a guide 4 Insert the check as far as it will go The printer will detect the check and start drawing it in 5 When the printer starts drawing it in let go...

Page 318: ...s not possible for the detector to measure exactly the length of paper left on the roll when the detector is triggered 1 Open the paper roll cover and remove the paper roll 2 Loosen the adjusting screw with a coin and carefully move the detecting lever down At the factory the lever is set at the highest position 5 As you move the lever down through the five positions you increase the amount of pap...

Page 319: ...blinking see Chapter 1 Troubleshooting PAPER OUT This light comes on when the printer is out or nearly out of roll paper The printer has a paper end detector and it also has a near end detector which can be adjusted to warn you that the printer is nearly out of paper See previous section if you want to adjust this detector This light blinks during the self test printing standby state or macro exec...

Page 320: ...Appendix I 14 Printer Handling Rev D Confidential RELEASE Use this button to release slip paper or to start a slip or validation paper self test See Figure I 20 ...

Page 321: ...iguration Table J 1 Screw types Head top Head side Body Washer assembled C Cross P Pan B Bind C Cup S tite B tite P tite T B S Spring lock washer S P1 S P2 S P3 S P4 Spring lock washer plain washer O Outside toothed lock washer P1 P2 P3 P4 Plain washer O P1 Outside toothed washer plain washer Head top Head side Washer assembled Body ...

Page 322: ...Appendix J 2 Screw Types Rev D Confidential ...

Page 323: ...Rev D Parts Layout Appendix K 1 TM U675 U675P with autocutter Service Manual Confidential Appendix K Parts Layout Main Circuit Board Unit Parts Side memory board ...

Page 324: ...Appendix K 2 Parts Layout Rev D Confidential Main Circuit Board Unit Solder Side memory board ...

Page 325: ...SEIKO EPSON CORPORATION Printed in Japan EPSON ...

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