Citizen CT-S851 Service Manual Download Page 42

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CT-S851 Series Service Manual

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3-1-1. Mechanical Exploded Diagrams

Exploded diagram 1

120-1
120-2
UNIT, COVER FRONT
(RART No. 121 - 131)

136

1
UNIT, MECHANISM
(PART No. 2 - 118)

135-1
135-2

141

140-1
140-2

134

133

134

138

137

139-1
139-2

103-1
103-2

113

142

102

119

143-1

143-2

144-1
144-2

145

146

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146

145

146

116

115

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114

Summary of Contents for CT-S851

Page 1: ...Service Manual COMPACT LINE THERMAL PRINTER CT S851 Series Revision 1 00 2010 2 25 ...

Page 2: ......

Page 3: ...ries Service Manual 1 REVISIONS Rev No Date Page Comment 1 00 2010 2 25 Newly issued CITIZEN is a registered trademark of CITIZEN HOLDINGS CO LTD Japan CITIZEN es una marca registrada de Citizen Holdings Co Japón ...

Page 4: ...or Indication 27 2 2 Explanations of Error Conditions 28 2 2 1 Paper Near End 28 2 2 2 Paper End 28 2 2 3 Front Cover Open 28 2 2 4 Paper Cover Open 28 2 2 5 Cutter Error 28 2 2 6 Black Mark Error 28 2 2 7 Print Head Hot 28 2 2 8 Memory Error 28 2 2 9 Print Head Error 29 2 2 10 Motor Error 29 2 2 11 Low Voltage Error 29 2 2 12 High Voltage Error 29 2 2 13 Drawer Voltage Error 29 2 2 14 Macro Execu...

Page 5: ...in Control Board CPU1 52 4 1 2 Main Control Board CPU2 DAC 53 4 1 3 Main Control Board ROM 54 4 1 4 Main Control Board RAM 55 4 1 5 Main Control Board GATE_ARRAY 56 4 1 6 Main Control Board HEAD OP PANEL 57 4 1 7 Main Control Board PF MOTOR 57 4 1 8 Main Control Board SENSOR 58 4 1 9 Main Control Board POWER DRAWER BUZZER 59 4 1 10 Main Control Board IF PCB CON OPTION IF 60 4 1 11 Main Control Boa...

Page 6: ...ts unless it is absolutely necessary After finishing inspection perform a check to ensure that there is no irregularity before turning on the printer Use caution not to leave any part or screw used for maintenance inside the printer When handling the print head and electronic components care must be taken to avoid static electricity When disassembling or reassembling the printer check the wires an...

Page 7: ...n FRAME BOTTOM and UNIT I F PCB 2 Disassembling SA COVER 02 Push KNOB COVER OPEN 02 upward and open SA COVER 02 Remove three SCREW BHT PT M3 0 10 and remove SA COVER 02 from COVER FRAME Hold HOLDER DAMPER PAPER 02 by hand until two screws come into view and remove the two screws SCREW BHT ST M3 0 6 KNOB COVER OPEN 02 SCREW BHT PT M3 0 10 HOLDER DAMPER PAPER 02 ...

Page 8: ...ont edge and slide it backward When mounting SA COVER 02 align the boss with the hole at COVER FRAME and slide SA COVER 02 upward with hooks inserted into COVER FRAME Precaution at disassembly reassembly The hooks and the boss at SA COVER 02 are engaged on FRAME COVER Carefully disassemble or reassemble the components so as not to damage them Check the routing of SA HEAD CABLE 02 Hooks Boss OK NG ...

Page 9: ...sides of SA HEAD COVER fit into the holes at COVER FRAME and engage the lugs to secure SA HEAD COVER 4 Disassembling SA THERMAL HEAD 02 Move down HOLDER HEAT SINK 02 by pressing the edges at the right and left sides SA THERMAL HEAD 02 is detached from lugs at COVER FRAME Pull SA THERMAL HEAD 02 out from SHAFT HEAD ADJUST 2 along the U slot and disconnect HEAD CABLE from two positions SA HEAD COVER...

Page 10: ...sassembling SA PLATEN UNIT 02 Raise HANDLE PLATEN 02 on both sides and pull SA PLATEN UNIT 02 out from SA MAIN FRAME 6 Disassembling SA CUTTER UNIT 02 Push PIN FRONT COVER at the right side of SA CASE 02 using a sharp pointed tool Raise FRONT COVER 02 and flip it down toward you to open it When LEVER CUTTER RELEASE 02 at the right and left sides are pushed down SA CUTTER UNIT pops out Pull it out ...

Page 11: ... Remove HOLDER FRONT COVER 02 from SA FRONT COVER 02 Remove HOLDER FRONT COVER 02 while pulling its side edge outwardly 8 Disassembling SA CASE 02 Remove two SCREW BHT ST M3 0 6 that fasten SA CASE 02 and SA MAIN FRAME Raise the front edge of SA CASE 02 while slightly pressing POWER SW at the front SCREW BHT ST M3 0 6 SA OPEPANE CABLE F SA FRONT COVER 02 HOLDER FRONT COVER 02 SCREW BHT ST M3 0 6 ...

Page 12: ...urn it counterclockwise and pull it upwardly to remove it Precaution at disassembly reassembly Do not assemble or disassemble SA CASE 02 by force When removing SA CASE 02 raise it little by little When reassembling follow the disassembly procedure in reverse Face the front panel of SA CASE 02 to the right pass it through SA COVER FRAME and turn it clockwise When the front faces toward you pull the...

Page 13: ...power connector Note that this connector is of the lock type Precaution at disassembly reassembly The power connector is a lock type connector Unlock the connector by pulling the outer slide at the end of the connector to disconnect the cable When fitting the connector insert it until it clicks and ensure that it cannot be removed easily J17 SA CUTTER J3 SA OPEPANE SA CUTTER CABLE SA OPEPANE CABLE...

Page 14: ...unting or mounting FRAME BOTTOM be careful not to damage the DC connector DK connector and external device connector When mounting FRAME BOTTOM align the lugs with four slots at which FRAME BOTTOM is to be secured slide it downward to engage the lugs and fasten it with screws Be careful not to allow connectors to interfere with each other in order to prevent deformation SCREW BHT ST M3 0 6 Lugs Lu...

Page 15: ...R and UNIT MOTOR at the front and remove UNIT MAIN PCB Precaution at reassembly Connectors are provided at the right left and front sides Be careful not to pull these cables by force When reassembling be careful not to miss or catch any part such as FRAME Before disassembling record the cable routing When reassembling reconnect the cables correctly Pass CABLE of COVER OPEN SENSOR through the hole ...

Page 16: ...Remove two SCREW BHT ST M2 0 4 that fasten SA MAIN FRAME and GEAR DAMPER Precaution at disassembly reassembly The unit can be mounted in either orientation This part is not compatible with the one for CT S801 3 Disassembling GEAR REDUCTION Remove SCREW PHT 2 M3 0 8 and SCREW PHT ST M3 0 6 that fasten SA MAIN FRAME and COVER GEAR 02 and remove GEAR REDUCTION from COVER GEAR 02 Precaution at disasse...

Page 17: ...y reassembly Align two holes at PLATE PNE SENSOR 02 with the bosses at SA MAIN FRAME and secure them with screws 5 Disassembling SA PAPER HOLDER 02 Remove four SCREW BHT BT M3 0 6 that fasten SA MAIN FRAME and SA PAPER HOLDER 02 Precaution at disassembly reassembly Remove one screw from the left rear and three screws from the right SCREW PHT 2 M3 0 8 BOSS Hooks SA HEAD CABLE F UNIT PNE 02 PLATE PN...

Page 18: ...e slot at SA MAIN FRAME When removing SA PAPER HOLDER 02 pull it upward while keeping it clear of the bosses at SA MAIN FRAME and the bent section at the front Precaution at reassembly When reassembling align the bosses at SA PAPER HOLDER 02 with the slot at SA MAIN FRAME SA PAPER HOLDER 02 GEAR COVER DAMPER Keep clear of these four sections ...

Page 19: ...ing SA FRAME COVER UNIT 02 Remove WASHER PLATEN that fastens the hinged section at SA FRAME MAIN to SA FRAME COVER and GEAR COVER DAMPER and remove GEAR COVER DAMPER Precaution at reassembly When reassembling align GEAR COVER DAMPER with the shaft at FRAME MAIN and the boss at FRAME COVER SCREW PHT BT M2 0 4 SA PE SENSOR WASHER PLATEN GEAR COVER DAMPER ...

Page 20: ...ution at disassembly reassembly When reassembling check the orientation of SPRING COVEROPEN 02 Attach the bent side to the hook at the SA MAIN FRAME side and attach the other side to the hook at the SA FRAME COVER UNIT 02 side 8 Disassembling COVER CABLE 02 Remove SCREW PHT ST M2 0 4 that fastens SA FRAME COVER UNIT 02 and COVER CABLE 02 and slide COVER CABLE 02 sideways to detach the hooks Then p...

Page 21: ... to align its end with the edge at COVER CABLE 02 9 Disassembling KNOB COVER OPEN 02 Remove POLYSLIDER KNOB 02 that fastens SA FRAME COVER UNIT 02 and KNOB COVER OPEN 02 pull KNOB COVER OPEN 02 out from the shaft and detach SPRING COVER OPEN KNOB 02 from SA FRAME COVER UNIT 02 Precaution at reassembly When reassembling attach the spring to the hooks and insert it into the shaft at SA FRAME COVER U...

Page 22: ...e alignment mark at SA FRAME COVER UNIT 0 can be seen 11 Disassembling GUIDE HEAD HOLDER 02 Remove three SPRING HEAD 02 from SA FRAME COVER UNIT 02 Precaution at disassembly reassembly The photo shows the position for the 3 inch model 2 marked on GUIDE HEAD HOLDER indicates the position for the 2 inch model and 3 indicates the one for the 3 inch model Insert the spring into the boss at SA FRAME CO...

Page 23: ...fastens SA MAIN FRAME and UNIT MOTOR 13 Disassembling SA POWER SW Pull SA POWER SW attached to SA MAIN FRAME toward the front while squeezing the right and left sides of SA POWER SW Precaution at reassembly When reassembling check the orientation of the switch ON must be located in the right with OFF O in the left SCREW PHT ST M3 0 6 Check the mounting orientation SCREW BHT BT M2 6 6 ...

Page 24: ... Remove SPRING COVER OPEN LEVER 02 from the hooks at LEVER R COVER LOCK 02 and SA MAIN FRAME Remove four SCREW PHT ST M3 0 6 that fasten LEVER R L COVER LOCK 02 and PLATE COVER LOCK LEVER 02 16 Disassembling LEVER R L COVER LOCK 02 Turn LEVER R COVER LOCK 02 until the hook is aligned with the hole at SA FRAME MAIN and remove LEVER R COVER LOCK 02 along the hole Remove LEVER L COVER LOCK 02 in the ...

Page 25: ...e screw is locked with NUT M2 Be careful not to loose it The shaft of SHAFT INTERLOCK SENSOR is specially shaped to prevent it from rotating When reassembling align SHAFT INTERLOCK SENSOR with the hole at SA FRAME MAIN Check the orientation of SPRING INTERLOCK 02 and the mounting position of SA MAIN FRAME 1 3 Assembly Procedure When reassembling the parts follow the procedure of 1 2 Disassembly Pr...

Page 26: ... Kasei Daphne Eponex Grease No 2 Idemitsu 2 Oiling Positions FLOIL G311S 1 Shaft at COVER GEAR 2 Shafts at SHAFT PAPER HOLDER 4 positions Apply oil to the HOLDER PAPER side 3 Hinge holes at SA COVER FRAME mating section with LEVER R L COVER LOCK two positions at the right and left ...

Page 27: ...r holes press formed projections and hooks at LEVER R L COVER LOCK 02 and SA MAIN FRAME Slideways at LEVER COVER OPEN 02 and SA MAIN FRAME Outside of press formed projections at SA MAIN FRAME Inside of hooks at SA MAIN FRAME Slideways at SA MAIN FRAME and LEVER COVER OPEN 02 Rotating center holes at SA MAIN FRAME Press formed projections at SA MAIN FRAME ...

Page 28: ...CT S851 Series Service Manual 26 5 Both ends of the shaft at SA CUTTER UNIT Daphne Eponex Grease No 2 Right left cutting edges of the blade at SA CUTTER UNIT Daphne Eponex Grease No 2 ...

Page 29: ...White Provided Cutter lock Open paper cover remove jam Red Red Provided Cutter error Cutter lock Then close the cover Red Red Provided Black mark error Black Mark Error Please check the paper Red Red Provided Print head hot Head overheat Please wait will continue Orange White None Memory error Memory Error Red Red Provided Print head error Head Error Please contact your dealer Red Red Provided Mot...

Page 30: ...osed Printing is not possible in this condition Close the cover to cancel the error Depending on the memory switch setting a command must be issued to resume printing 2 2 5 Cutter Error The auto cutter stops operating due to paper jams or the like In this case refer to 10 5 Canceling the Cutter Lock Error and cancel the error When you open the paper cover to clear paper jams the message Close the ...

Page 31: ...observed with continuous printing or paper feed at the fault test 2 2 11 Low Voltage Error If the power supplied to the printer drops to 16 V or below operation will stop In this case shut down the printer immediately 2 2 12 High Voltage Error If the power supplied to the printer becomes 27 V or above operation will stop In this case shut down the printer immediately 2 2 13 Drawer Voltage Error If...

Page 32: ...ake the remedies described in this column By following the above mentioned procedure you can troubleshoot problems efficiently with fewer misjudgments 2 4 Troubleshooting Guide Power Supply Failure Phenomenon Cause Check Method Remedies The power cable is not connected Connect the power cable Power cannot be turned on The POWER LED not illuminated The fuse is blown Check if the specified fuse is u...

Page 33: ...e the thermal head with a new one The supply voltage is low Check the supply voltage with a tester Use the printer within the specified supply voltage range The thermal head is faulty Replace the thermal head with a new one The thermal head has fouling Check the thermal head for fouling Remove fouling using ethyl alcohol soaked cotton swab or soft cloth Paper other than recommended is used Check i...

Page 34: ...lty Replace UNIT PE The paper near end sensor is faulty Check the indication at the LCD LED or buzzer when the paper ends Replace UNIT PNE The sensor spring is broken Push the sensor by hand and check if it returns Replace UNIT PE or UNIT PNE The connector has a bad connection The sensor is faulty Check the connecting condition of the connector Check the indication at the LCD LED or buzzer while o...

Page 35: ...n Check the connecting condition of the connector Check the cable surface Connect the connector correctly Replace SA OP PANEL CABLE Indications at the LED and LCD on the operation panel are faulty The LCD is broken or the backlight is faulty There are some dead or stuck pixels on the LCD The backlight is not lit or cannot be switched Replace UNIT OP PANEL PCB ...

Page 36: ...0 TZ42201 0 SHAFT INTERLOCK SENSOR 1 11 E00620 080F SCREW PH PW M2 0 8 1 12 E40120 000F NUT M2 1 13 TZ23623 0 SPRING INTERLOCK 02 1 14 TZ44120 0 PLATE COVER LOOK LEVER 02 1 15 TZ44124 0 LEVER L COVER LOCK 02 1 16 TZ44125 0 LEVER R COVER LOCK 02 1 17 E11130 060F SCREW PHT ST M3 0 6 4 18 TZ23619 0 SPRING COVER OPEN LEVER 02 1 19 TZ25801 0 UNIT MOTOR 1 20 TZ20202 0 GEAR REDUCTION 1 21 TZ24220 0 COVER...

Page 37: ...IDER KNOB 02 1 55 TZ23618 0 SPRING COVER OPEN KNOB 02 1 56 TZ44214 0 COVER CABLE 02 1 57 E14020 040F SCREW PHT ST M2 0 4 1 58 TZ40201 0 GEAR COVER DAMPER 1 59 TZ23615 0 SPRING HEAD 02 3 60 TZ40901 0 GEAR DAMPER C 1 61 E14020 040F SCREW BHT ST M2 0 4 2 62 TZ68710 0 SA COVER OPEN SENSOR F 1 63 E13517 070F SCREW No 0 PHT BT 3 M1 7 7 2 64 TZ49701 0 SA PAPER HOLDER 02 1 65 TZ44216 0 HOLDER PAPER 02 1 6...

Page 38: ... 0 6 4 101 BE54106 0 LEG 4 102 TZ23624 0 SPRING CUTTER POPUP 02 1 103 1 TZ29702 0 SA PLATEN UNIT 02 1 For 3 inch model 103 2 TZ29703 0 SA PLATEN UNIT 2INCH 02 1 For 2 inch model 104 1 TZ28501 1 SA PLATEN 1 For 3 inch model 104 2 TZ28502 1 SA PLATEN 2INCH 1 For 2 inch model 105 TZ24222 0 COVER PLATEN 02 1 106 TZ24224 0 HANDLE PLATEN 02 2 107 TZ04105 0 PLATE PLATEN 02 2 108 E18220 050F SCREW No 0 TF...

Page 39: ... 0 CUTTER MANUAL 02 1 142 E12830 100F SCREW BHT PT M3 0 10 3 143 1 TA69905 1 SWITCHING ADAPTER 36AD3 1 143 2 TA69904 1 SWITCHING ADAPTER 36AD2 1 144 1 TZ56207 0 COVER ADAPTER 1 White 144 2 TZ56215 0 BK COVER ADAPTER BK 1 Black 145 BE54106 0 LEG 4 146 E14030 060F SCREW BHT ST M3 0 6 4 147 TZ66801 0 UNIT SERIAL I F PCB inch 1 Option 148 TZ66712 0 SA SERIAL I F PCB 1 149 TA54103 0 PLATE_SERIAL_I_F 1 ...

Page 40: ...09 0 UNIT USB HUB I F PCB 1 Option 174 TZ66718 0 SA USB HUB I F PCB 1 175 TZ54105 0 PLATE USB I F 2 1 176 E14030 040F SCREW BHT ST M3 0 4 2 177 E14030 060F SCREW BHT ST M3 0 6 2 178 TZ66805 0 UNIT ETHERNET E type I F PCB 1 Option 179 TZ66716 0 SA ETHERNET E type I F PCB 1 180 TZ54111 0 PLATE LAN I F 1 181 TZ54112 0 JOINT LAN I F 2 182 TZ44134 0 SHEET LAN PCB 1 183 E00530 040F SCREW BH M3 0 4 4 184...

Page 41: ...SCREW BHT ST M2 0 4 57 61 E11130 040F SCREW BHT ST M3 0 4 141 E11130 060F SCREW PHT ST M3 0 6 17 151 E12820 060F SCREW BHT PT M2 0 6 93 E12830 100F SCREW BHT PT M3 0 10 142 E13517 070F SCREW No 0 PHT BT 3 M1 7 7 63 E14030 040F SCREW BHT ST M3 0 4 160 171 176 183 E14030 060F SCREW BHT ST M3 0 6 4 98 100 134 136 146 156 161 167 172 177 184 186 E16930 060F SCREW PHT ST SW PW M3 0 6 52 E17930 060F SCR...

Page 42: ...xploded diagram 1 120 1 120 2 UNIT COVER FRONT RART No 121 131 136 1 UNIT MECHANISM PART No 2 118 135 1 135 2 141 140 1 140 2 134 133 134 138 137 139 1 139 2 103 1 103 2 113 142 95 142 95 102 119 143 1 143 2 144 1 144 2 145 146 145 146 146 145 145 146 116 115 115 117 114 ...

Page 43: ...851 Series Service Manual 41 Exploded diagram 2 123 122 129 130 125 131 128 127 121 1 121 2 124 132 125 126 112 111 110 109 108 106 107 104 1 105 For 2 inch model For 3 inch model 107 106 108 109 110 104 2 ...

Page 44: ...CT S851 Series Service Manual 42 Exploded diagram 3 96 98 97 1 97 2 97 3 97 4 98 98 98 101 99 100 100 101 100 101 100 101 ...

Page 45: ...CT S851 Series Service Manual 43 Exploded diagram 4 57 56 24 58 29 30 28 27 31 25 55 30 33 50 51 1 51 2 52 34 32 54 53 For 2 inch model 59 For 3 inch model 36 35 37 40 44 45 43 47 41 46 49 48 42 ...

Page 46: ...CT S851 Series Service Manual 44 Exploded diagram 5 94 64 69 68 69 67 66 65 90 89 88 91 92 87 93 118 86 86 85 72 70 70 71 76 75 84 73 82 77 83 78 51 80 74 79 39 38 39 ...

Page 47: ...CT S851 Series Service Manual 45 Exploded diagram 6 17 14 15 17 16 18 21 22 20 2 62 63 60 61 23 5 7 8 11 6 3 4 7 8 19 12 10 13 9 86 ...

Page 48: ...ice Manual 46 Exploded diagram 7 148 153 149 154 151 156 150 153 151 156 170 172 171 169 147 152 168 160 159 161 162 161 158 173 157 176 174 175 177 164 165 167 166 167 178 163 179 181 180 184 183 184 181 183 182 185 186 ...

Page 49: ...CT S851 Series Service Manual 47 3 2 Parts Layout 3 2 1 SA MAIN PCB ...

Page 50: ...CT S851 Series Service Manual 48 ...

Page 51: ...CT S851 Series Service Manual 49 3 2 2 SA DC PCB 3 2 3 SA SERIAL I F PCB ...

Page 52: ...CT S851 Series Service Manual 50 3 2 4 SA PARALLEL I F PCB 3 2 5 SA USB I F PCB ...

Page 53: ...CT S851 Series Service Manual 51 3 2 6 SA USB HUB I F PCB 3 2 7 SA POWERED USB I F PCB ...

Page 54: ...CT S851 Series Service Manual 52 4 CIRCUIT DIAGRAMS 4 1 MAIN PCB 4 1 1 Main Control Board CPU1 ...

Page 55: ...CT S851 Series Service Manual 53 4 1 2 Main Control Board CPU2 DAC ...

Page 56: ...CT S851 Series Service Manual 54 4 1 3 Main Control Board ROM ...

Page 57: ...CT S851 Series Service Manual 55 4 1 4 Main Control Board RAM ...

Page 58: ...CT S851 Series Service Manual 56 4 1 5 Main Control Board GATE_ARRAY ...

Page 59: ...CT S851 Series Service Manual 57 4 1 6 Main Control Board HEAD OP PANEL 4 1 7 Main Control Board PF MOTOR ...

Page 60: ...CT S851 Series Service Manual 58 4 1 8 Main Control Board SENSOR ...

Page 61: ...CT S851 Series Service Manual 59 4 1 9 Main Control Board POWER DRAWER BUZZER ...

Page 62: ...CT S851 Series Service Manual 60 4 1 10 Main Control Board IF PCB CON OPTION IF ...

Page 63: ...CT S851 Series Service Manual 61 4 1 11 Main Control Board CUTTER ...

Page 64: ...CT S851 Series Service Manual 62 4 2 PE PNE Sensor 4 3 Operation Panel ...

Page 65: ...CT S851 Series Service Manual 63 4 4 Serial I F PCB ...

Page 66: ...CT S851 Series Service Manual 64 4 5 Parallel I F PCB ...

Page 67: ...CT S851 Series Service Manual 65 4 6 USB I F PCB ...

Page 68: ...CT S851 Series Service Manual 66 4 7 USB HUB I F PCB ...

Page 69: ...CT S851 Series Service Manual 67 4 8 POWERED USB I F PCB ...

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