Citizen CT-S801 Service Manual

Service Manual COMPACT LINE THERMAL PRINTER CT-S851 Series Revision 1.00 2010.2.25

CT-S851 Series Service Manual - 8 - <Precaution at reassembly> “SA, THERMAL HEAD-02” is electrostatically sensitive. Avoid contacting the hea

CT-S851 Series Service Manual - 9 - 7. Disassembling “SA, FRONT COVER-02” Remove two “SCREW, BHT (ST), M3.0 × 6” that fasten “SA, FRONT COVER-02” an

CT-S851 Series Service Manual - 10 - Close “SA, COVER FRAME” slightly, and raise “SA, CASE-02” while pulling the right and left edges of “SA, CASE-02

CT-S851 Series Service Manual - 11 - Remove “SA, OPEPANE CABLE-F” and “SA, CUTTER CABLE”. 9. Disassembling “COVER, ADAPTER” Remove four “SCREW,

CT-S851 Series Service Manual - 12 - 10. Disassembling “FRAME, BOTTOM” Remove four “SCREW, BHT (ST), M3.0 × 6”that fasten “FRAME, BOTTOM” and “SA,

CT-S851 Series Service Manual - 13 - . 11. Disassembling “UNIT, MAIN PCB” Remove four “SCREW, BHT (ST), M3.0 × 6” that fasten “UNIT, MAIN PCB” and

CT-S851 Series Service Manual - 14 - 1-2-2. Disassembling “UNIT, MECHANISM” 1. Disassembling “SA, COVER OPEN SENOR - F” Remove two “SCREW, No. 0 PHT

CT-S851 Series Service Manual - 15 - 4. Disassembling “UNIT, PNE-02” Remove two “SCREW, PHT (#2), M3.0 × 8” that fasten “SA, MAIN FRAME” and “PLATE,

CT-S851 Series Service Manual - 16 - Raise the rear of “SA, PAPER HOLDER-02” while pulling “GEAR, COVER DAMPER” outwardly, and detach the bosses from

CT-S851 Series Service Manual - 17 - 6. Disassembling “SA, PE SENSOR” Remove two “SCREW, PHT (BT), M2.0 × 6” that fasten “SA, PAPER HOLDER-02” and “

CT-S851 Series Service Manual - 18 - Remove “WASHER, PLATEN” from the “COVER, CABLE-02” side, and remove “SA, FRAME COVER UNIT-02” from the hinged se

CT-S851 Series Service Manual - 19 - Remove “SA, HEAD CABLE-02” from “COVER, CABLE-02”. <Precaution at reassembly> When reassembli

CT-S851 Series Service Manual - 20 - 10. Disassembling “PLATE, FIX BLADE” Remove two “SCREW, PHT (ST, SW + PW), M3.0 × 6” that fasten “FRAME COVER U

CT-S851 Series Service Manual - 21 - Remove two “SCREW, BHT (BT), M2.6 × 6” that fasten “SA, FRAME COVER UNIT-02” and “GUIDE, HEAD HOLDER-02”. 12.

CT-S851 Series Service Manual - 22 - 14. Disassembling “LEVER R & L, CUTTER RELEASE-02” Detach “SPRING, LEVER CUTTER-02” from the hooks at “SA,

CT-S851 Series Service Manual - 23 - 17. Disassembling “LEVER, COVER OPEN-02” Press down “LEVER, COVER OPEN-02”, align it with the slot at “SA, MAIN

CT-S851 Series Service Manual - 24 - 1-4. Oiling 1) Oil Used (Grease) • FLOIL G311S (Kanto Kasei) • Daphne Eponex Grease No. 2 (Idemitsu) 2) Oilin

CT-S851 Series Service Manual - 25 - (4) Rotating center holes, press-formed projections and hooks at “LEVER R & L, CUTTER RELEASE-02” and “SA, M

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

CT-S851 Series Service Manual - 27 - 2. TROUBLESHOOTING 2-1. Error Indication When an error state is detected it is indicated at the LCD, LCD backligh

CT-S851 Series Service Manual - 1 - REVISIONS Rev No. Date Page Comment 1.00 2010/2/25 Newly issued

CT-S851 Series Service Manual - 28 - 2-2. Explanations of Error Conditions 2-2-1. Paper Near End When the diameter of the roll paper becomes small (

CT-S851 Series Service Manual - 29 - 2-2-9. Print Head Error If abnormal heat generation is detected at the print head for any reason, the print head

CT-S851 Series Service Manual - 30 - 2-3. Troubleshooting Procedure When a fault occurs, confirm its phenomenon, locate the problem in accordance with

CT-S851 Series Service Manual - 31 - ● Printing Failure Phenomenon Cause Check Method Remedies The control PCB is faulty. − Replace the control PCB

CT-S851 Series Service Manual - 32 - ● Paper Feed Failure Phenomenon Cause Check Method Remedies The motor connector has a bad connection. Check t

CT-S851 Series Service Manual - 33 - ● Operation Panel Display Failure Phenomenon Cause Check Method Remedies The connector has a bad connection o

CT-S851 Series Service Manual - 34 - 3. SERVICE PARTS LIST Remarks: All the parts used in the product are contained in “SERVICE PARTS LIST” in this

CT-S851 Series Service Manual - 35 - No. Part No. Part Name Q’ty Remarks 38 TZ68712-0 SA, BM SENSOR-F 1 For BM model 39 TZ66713-0 SA, LABEL

CT-S851 Series Service Manual - 36 - No. Part No. Part Name Q’ty Remarks 83 E10120-080F SCREW, BHT (PT) M2.0 × 8 2 84 TZ68711-0 SA,PNE SENS

CT-S851 Series Service Manual - 37 - No. Part No. Part Name Q’ty Remarks 124 TZ66810-0 UNIT, OPEPANE PCB-851 1 125 E12820-060F SCREW, BHT (PT

CT-S851 Series Service Manual - 2 - CONTENTS INTRODUCTION ...

CT-S851 Series Service Manual - 38 - No. Part No. Part Name Q’ty Remarks 167 E14030-060F SCREW, BHT (ST), M3.0 × 6 2 168 TZ66804-0 UNIT, POWERED U

CT-S851 Series Service Manual - 39 - List of Screws Used Part No. Part Name No. E00530-040F SCREW, BH, M3.0 × 4 181 E00620-080F SCREW, PH (PW), M2

CT-S851 Series Service Manual - 40 - 3-1-1. Mechanical Exploded Diagrams Exploded diagram 1 120-1 120-2 UNIT, COVER FRONT (RART No. 121 - 131) 13

CT-S851 Series Service Manual - 41 - Exploded diagram 2 123 122 129 130 125 131 128 127 121-1121-2124 132 125 126 112 111 110 109 108 106 107 104-11

CT-S851 Series Service Manual - 42 - Exploded diagram 3 96 9897-197-297-397-49898 9810199100 100 101 100 101 100101

CT-S851 Series Service Manual - 43 - Exploded diagram 4 57 56 24 58 29 30 28 27312555 30 33 5051-151-25234 32 54 53 For 2-inch model 59 For 3-inch m

CT-S851 Series Service Manual - 44 - Exploded diagram 5 94 64 69 68 69 67 66 65 90 89 88919287931188686 85 72 7070 71 76 75 84 73 82 77 83 78 51 80

CT-S851 Series Service Manual - 45 - Exploded diagram 6 1714 1517 16 18 21 22 20 2 62 63 60 61 23 578116 3 4 7819 12 10 13 9 86

CT-S851 Series Service Manual - 46 - Exploded diagram 7 148, 153 149, 154151, 156150, 153151, 156170 172 171169147, 152168 160 159 161 162 161 158 1

CT-S851 Series Service Manual - 47 - 3-2. Parts Layout 3-2-1. SA, MAIN PCB

CT-S851 Series Service Manual - 3 - 3. SERVICE PARTS LIST ...34 3-1. Mechanic

CT-S851 Series Service Manual - 48 -

CT-S851 Series Service Manual - 49 - 3-2-2. SA, DC PCB 3-2-3. SA, SERIAL I/F PCB

CT-S851 Series Service Manual - 50 - 3-2-4. SA, PARALLEL I/F PCB 3-2-5. SA, USB I/F PCB

CT-S851 Series Service Manual - 51 - 3-2-6. SA, USB HUB I/F PCB 3-2-7. SA, POWERED USB I/F PCB

CT-S851 Series Service Manual - 52 - 4. CIRCUIT DIAGRAMS 4-1. MAIN PCB 4-1-1. Main Control Board (CPU1)

CT-S851 Series Service Manual - 53 - 4-1-2. Main Control Board (CPU2/DAC)

CT-S851 Series Service Manual - 54 - 4-1-3. Main Control Board (ROM)

CT-S851 Series Service Manual - 55 - 4-1-4. Main Control Board (RAM)

CT-S851 Series Service Manual - 56 - 4-1-5. Main Control Board (GATE_ARRAY)

CT-S851 Series Service Manual - 57 - 4-1-6. Main Control Board (HEAD, OP-PANEL) 4-1-7. Main Control Board (PF MOTOR)

CT-S851 Series Service Manual - 4 - INTRODUCTION This manual describes the disassembly, reassembly, and maintenance procedures of CT-S851 Series. 1.

CT-S851 Series Service Manual - 58 - 4-1-8. Main Control Board (SENSOR)

CT-S851 Series Service Manual - 59 - 4-1-9. Main Control Board (POWER/DRAWER/BUZZER)

CT-S851 Series Service Manual - 60 - 4-1-10. Main Control Board (IF PCB CON / OPTION IF)

CT-S851 Series Service Manual - 61 - 4-1-11. Main Control Board (CUTTER)

CT-S851 Series Service Manual - 62 - 4-2. PE, PNE Sensor 4-3. Operation Panel

CT-S851 Series Service Manual - 63 - 4-4. Serial I/F PCB

CT-S851 Series Service Manual - 64 - 4-5. Parallel I/F PCB

CT-S851 Series Service Manual - 65 - 4-6. USB I/F PCB

CT-S851 Series Service Manual - 66 - 4-7. USB HUB I/F PCB

CT-S851 Series Service Manual - 67 - 4-8. POWERED USB I/F PCB

CT-S851 Series Service Manual - 5 - 1-2. Disassembly Procedure 1-2-1. Disassembling the Printer 1. Disassembling “UNIT, I/F PCB” Remove two “SCRE

CT-S851 Series Service Manual - 6 - Since “SA, COVER-02” is secured with hooks and the boss, it cannot be removed easily when it is fully opened.

CT-S851 Series Service Manual - 7 - 3. Disassembling “SA, HEAD COVER” Detach the lugs from the notches at the right and left sides of “COVER, FRAME”