Service Manual COMPACT LINE THERMAL PRINTER CT-P292/293 Series Revision 1.00 2010.2.
CT-292/293 Series Service Manual REVISIONS Rev No. Date 1.00 2010/2/15 Page Comment Newly issued CITIZEN is a registered trademark of CITIZEN HOLDINGS CO., LTD., Japan. CITIZEN es una marca registrada de Citizen Holdings Co., Japón.
CT-292/293 Series Service Manual CONTENTS INTRODUCTION .............................................................................................4 1. 2. 3. DISASSEMBLY AND REASSEMBLY.......................................................4 1-1. Tools Used .........................................................................................................................4 1-2. Disassembly Procedure .................................................................................................
CT-292/293 Series Service Manual 4. CIRCUIT DIAGRAMS.............................................................................31 4-1. MAIN PCB .......................................................................................................................31 4-1-1. Main Control Board (CPU).................................................................................31 4-1-2. Main Control Board (RAM, ROM) ......................................................................32 4-1-3.
CT-292/293 Series Service Manual INTRODUCTION This manual describes the disassembly, reassembly, and maintenance procedures of CT-P292/293 Series. 1. DISASSEMBLY AND REASSEMBLY Note the following items when performing maintenance of the printer. • Do not disassemble, reassemble, or adjust the printer unnecessarily when the printer operation is satisfactory. • Do not loosen the screws that fasten the components unless it is absolutely necessary.
CT-292/293 Series Service Manual 1-2. Disassembly Procedure 1-2-1. Disassembling the Printer 1. Disassembling “COVER, OPE-PANE” Press in the lugs on the right and left at “COVER, OPE-PANE” and remove “COVER, OPE-PANE” toward you. Lugs COVER, OPE-PANE Engage the lugs at “COVER OPE-PANE” to “CASE L”. Try to pull “COVER OPE-PANE” toward you to check that it is securely fitted. 2. Disassembling “CASE L” Remove two “SCREW, PHT (ST#3), M3.
CT-292/293 Series Service Manual 3. Disassembling “DOOR FRONT” Flip down “SA, DOOR FRONT” toward you. Remove “E-RING, 2.0” that fasten “LINK, FRONT DOOR” and “SA, LEVER PLATEN” at the right and left, and disengage “LINK, FRONT DOOR” from “DOOR FRONT”. SA, LEVER PLATEN E-RING, 2.0 LINK, FRONT DOOR Keep the bosses at “LINK, FRONT DOOR” facing inwardly and hang them to “DOOR FRONT”.
CT-292/293 Series Service Manual 4. Disassembling “UNIT, MAIN PCB” Remove four “SCREW, PHT (ST#3), M3.0 × 6”, and detach “UNIT, MAIN PCB” that is secured between “PLATE SHIELD” and “SA, FRAME BASE”. SCREW, PHT (ST#3), M3.0 × 6 PLATE SHIELD UNIT, MAIN PCB Raise the front edge of “UNIT, MAIN PCB” and disconnect “FFC CABLE” from the connectors at the “HEAD ASSY” side and the “UNIT, MAIN PCB” side. Then, remove the other connectors and cut the cable tie.
CT-292/293 Series Service Manual 1-2-2. 1. Disassembling “UNIT, MECHANISM” Disassembling “SA, HOLDER PAPER” Remove “SCREW, PHT (BT#3), M3.0 × 8”, that fasten “SA, FRAME BASE” and “SA, HOLDER PAPER”, from the right and left sides, respectively. SCREW, PHT (BT#3), M3.0 × 8 Securely fit the bosses at “SA, HOLDER PAPER” into the slots at “SA, FRAME BASE”. Remove “CUTTER CABLE” from the groove at “SA, HOLDER PAPER”, and draw it out from the hole.
CT-292/293 Series Service Manual Take up slack from the cable. For the auto-cutter model, route the cable outside the screw for “GUIDE, PAPER ADJUST”, and insert it into the groove at “SA, HOLDER PAPER” without any slack on the cable. Insert the cable into this groove. Route the cable outside the screw. Auto-cutter model (CT-P293) only Remove “PE, PCB ASSY” from “SA, HOLDER PAPER”.
CT-292/293 Series Service Manual Detach the boss at “SA, FRAME BASE” from “FRAME, FRONT DOOR” while pulling “FRAME, FRONT DOOR” outwardly. Detach two lugs that fasten “GUIDE FRONT DOOR”. Detach two lugs from the right and left sides of the platen roller. For the auto-cutter model, the cable is secured with the hook at “GUIDE FRONT DOOR”. When removing the cable, remove it while pushing the hook in the arrow direction.
CT-292/293 Series Service Manual Remove “SPRING, PLATEN LOCK” from the right and left sides of “FRAME, FRONT DOOR”. Face them inwardly. SA, LEVER PLATEN L SA, LEVER PLATEN R When reassembling, keep the end of “SPRING, PLATEN LOCK” facing inwardly under the “FRAME, FRONT DOOR”. Press “SA, LEVER PLATEN L & R” and check that they can be moved smoothly. 3. Disassembling “PLATEN” Remove “E-RING, 4.0” that fasten “PLATEN GEAR”, and pull out “PLATEN GEAR”. Remove two “E-RING, 4.
CT-292/293 Series Service Manual When reassembling, insert “PLATEN”, together with “PLATEN BUSHING”, into “FRAME, FRONT DOOR” from the right. Since the shaft length of “PLATEN” differs between the right and left, be careful not to insert “PLATEN” in a wrong orientation. 4. Disassembling “AUTO CUTTER” (CT-P293) or “DUMMY, CUTTER FRAME” (CT-P292) Remove two “SCREW, PHT (ST#3), M3.0 × 6”, that fasten “FRAME, FRONT DOOR”, from the right and left sides. SCREW, PHT (ST#3), M3.
CT-292/293 Series Service Manual AUTO CUTTER (CT-P293) DUMMY, CUTTER FLAME (CT-P292) Paper guide 5. Paper guide Disassembling “SA, LEVER PLATEN L & R” Remove two “E-RING, 2.0” from the right and left sides of “FRAME, FRONT DOOR”. Left side Right side Be sure to assemble “SA, LEVER PLATEN” in a correct orientation. 6. Disassembling “SA, F BLADE STAY” Remove two “SCREW, PHT (ST#3), M3.0 × 6” that fasten “SA, FRAME BASE” and “SA, F BLADE STAY”. SCREW, PHT (ST#3), M3.
CT-292/293 Series Service Manual Remove “SCREW BHT (ST), M2.0 × 4” that fastens “SA, F BLADE STAY” and “F-BLADE”. Align the bosses. Auto-cutter model (CT-P293) only Align the bosses at “F BLADE STAY” with the holes at “SA, FRAME BASE”. Check the orientation of “F-BLADE”. 7. Disassembling “HEAD ASSY” Remove “HEAD ASSY” while pulling the side edges at “SA, FRAME BASE” outwardly and keeping it clear of “HEAD SPRING”.
CT-292/293 Series Service Manual 8. Disassembling “PE SWITCH ASSY” Remove “SCREW, PHT (BT#3), M1.7 × 6” that fastens “SA, FRAME BASE” and “PE SWITCH ASSY”. SCREW, PHT (BT#3), M1.7 × 6 Hole for screw Keep the cable away from the frame. Hole for boss When reassembling, align the screw and the boss with the holes for them, respectively, then tighten the screw. Keep the cable away from the frame. 9. Disassembling “SA, FRAME BASE” Remove two “SCREW, PHT (ST#3), M3.
CT-292/293 Series Service Manual Turn “MOTOR ASSY” and insert the lower flange into the fixture. Then secure “MOTOR ASSY” with a screw. 1-3. Assembly Procedure When reassembling the parts, follow the procedure of “1-2 Disassembly Procedure” in reverse.
CT-292/293 Series Service Manual 1-4.
CT-292/293 Series Service Manual 2. TROUBLESHOOTING 2-1. Error Indication When an error is detected, the three LEDs indicate the error status in the following patterns.
CT-292/293 Series Service Manual Status Paper end Macro execution wait *1, 2: POWER LED ERROR LED PAPER LED (Green) (Red) (Orange) Lit − Lit Lit When the front cover is opened during paper feed or printing, the paper sensor may be activated, resulting in the paper end error. *2: After closing the front cover, reset the error by using a command.
CT-292/293 Series Service Manual 2-2 Explanations of Error Conditions 2-2-1 Head Overheat Error When the head temperature is raised (approx. 75°C or above), the ERROR LED blinks and printing operation is stopped to protect the print head from overheat. When the head temperature is lowered (approx. 70°C or lower), printing operation is automatically restarted. 2-2-2 Cover Open Error When the front cover is opened during paper feed or printing, the ERROR LED blinks.
CT-292/293 Series Service Manual 2-3. Troubleshooting Procedure When a fault occurs, confirm its phenomenon, locate the problem in accordance with “2.2 Troubleshooting Guide”, and troubleshoot it as described below. Phenomenon Find the fault phenomenon in this column. If there are multiple phenomena, take all the applicable items into consideration. This will help you locate hidden problems as well. Cause Possible causes are listed here.
CT-292/293 Series Service Manual ● Printing Failure Phenomenon No printing Cause Check Method The control PCB is faulty. The thermal head connector has a bad contact or connection. − Check the contact or connecting condition. The thermal head is faulty. Paper setting is wrong side out. Part of printing is not done. Print is pale. Print is uneven. Print is faint. − Remedies Replace “UNIT, MAIN PCB”. Re-insert the thermal head connector or replace it with a new one.
CT-292/293 Series Service Manual ● Paper Feed Failure Phenomenon Paper is not fed. Paper feed is not straight. Cause Check Method Remedies The motor connector has a bad connection. Check the connecting condition of the connector. The motor is faulty. Measure the supply voltage Replace “MOTOR ASSY”. with a tester or oscilloscope. The supply voltage is low. Check the supply voltage with a tester. − The control PCB is faulty. Connect the connector correctly.
CT-292/293 Series Service Manual 3. SERVICE PARTS LIST Remarks: All the parts used in the product are contained in “SERVICE PARTS LIST” in this Service Manual. However, note that all of them are not available with customers. When placing an order for service parts, refer to the Parts Price List published separately. If you need the Parts Price List, consult the local distributor from whom you purchased this product. No. Part No.
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CT-292/293 Series Service Manual Exploded diagram - configuration of No. 201 Exploded diagram - configuration of No.
CT-292/293 Series Service Manual Exploded diagram - configuration of No. 203 Exploded diagram - configuration of No.
CT-292/293 Series Service Manual Exploded diagram - configuration of No. 205 Exploded diagram - configuration of No.
CT-292/293 Series Service Manual Exploded diagram - configuration of No.
CT-292/293 Series Service Manual 4. CIRCUIT DIAGRAMS 4-1. MAIN PCB 4-1-1.
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CT-292/293 Series Service Manual 4-1-9.
