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Citizen CBM-270 Service Manual
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Citizen CBM-270 Service Manual

Citizen CBM-270 Service Manual

Line thermal printer
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Download this manual See also: Service Manual, User Manual
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CITIZEN

Service Manual

Model : CBM-270
Line Thermal Printer
Rev. 1.00 Newly issued on 05. Jan. 1999
J J J J a a a a p p p p a a a a n n n n C C C C B B B B M M M M C C C C o o o o r r r r p p p p o o o o r r r r a a a a t t t t i i i i o o o o n n n n
I I I I n n n n f f f f o o o o r r r r m m m m a a a a t t t t i i i i o o o o n n n n S S S S y y y y s s s s t t t t e e e e m m m m s s s s D D D D i i i i v v v v . . . .

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Summary of Contents for Citizen CBM-270

  • Page 1: Service Manual

    CITIZEN Service Manual Model : CBM-270 Line Thermal Printer Rev. 1.00 Newly issued on 05. Jan. 1999 J J J J a a a a p p p p a a a a n n n n C C C C B B B B M M M M C C C C o o o o r r r r p p p p o o o o r r r r a a a a t t t t i i i i o o o o n n n n...
  • Page 2 This manual describes the disassembly, reassembly, and maintenance procedures of the Line Thermal Printer CBM-270. It is intended for field maintenance men. F F F F E E E E A A A A T T T T U U U U R R R R E E E E S S S S This small line thermal printer is designed for various types of data communication terminals and measuring instrument terminals.
  • Page 3 CBM-270 Service Manual C C C C O O O O N N N N T T T T E E E E N N N N T T T T S S S S 1. HANDLING AND MAINTENANCE OF PRINTER ................4 2.
  • Page 4 CBM-270 Service Manual 1 1 1 1 ..H H H H A A A A N N N N D D D D L L L L I I I I N N N N G G G G A A A A N N N N D D D D M M M M A A A A I I I I N N N N T T T T E E E E N N N N A A A A N N N N CE...
  • Page 5 CBM-270 Service Manual 2 2 2 2 ..S S S S P P P P E E E E C C C C I I I I F F F F I I I I C C C C A A A A T T T T I I I I O O O O N N N N S S S S 2 2 2 2 .
  • Page 6 CBM-270 Service Manual 2 2 2 2 ..2 2 2 2 P P P P a a a a p p p p e e e e r r r r S S S S p p p p e e e e c c c c i i i i f f f f i i i i c c c c a a a a t t t t i i i i o o o o n n n n s s s s 2 2 2 2 .
  • Page 7 CBM-270 Service Manual 3 3 3 3 ..D D D D I I I I S S S S A A A A SS SSE E E E M M M M B B B B L L L L Y Y Y Y A A A A N N N N D D D D R R R R E E E E A A A A SS...
  • Page 8 CBM-270 Service Manual 2. Removing the Screws from the Bottom of the Main Body (1) Turn over the printer body. (2) Remove two M3 ´ 10 (BT) screws. Then, turn back the printer body to its original position. Do this, holding its upper and bottom covers.
  • Page 9 CBM-270 Service Manual 4. Detaching the Platen Roller Unit (1) Raise the head-up lever. (2) Unlock the platen roller unit. Pull up the blue levers on both sides of the platen roller unit, while opening them outside. (3) Detach the platen roller unit.
  • Page 10 CBM-270 Service Manual 6. Detaching the NPE Sensor Unit (1) Remove one M3 ´ 10 (BT) screw used to secure the NPE sensor unit. (2) Pull out a cable. 7. Detaching the Operation Panel Board (1) Remove two M2.6 ´ 8 (BT) screws.
  • Page 11 CBM-270 Service Manual 9. Detaching the Control Board (1) Remove one M3 ´ 8(BT) screw. (2) Turn on the Power switch. (3) Detach the board. Slightly opening outside the plastic part near the Power switch, slide it upward to the near side of the printer body to detach.
  • Page 12 CBM-270 Service Manual 3 3 3 3 ..2 2 2 2 R R R R e e e e a a a a s s s s s s s s e e e e m m m m b b b b l l l l y y y y P P P P r r r r o o o o c c c c e e e e d d d d u u u u r r r r e e e e Reassemble the disassembled parts in the reverse order of the disassembly procedure described in 3.1.
  • Page 13 CBM-270 Service Manual 4 4 4 4 ..T T T T R R R R O O O O U U U U B B B B L L L L E E E E S S S S H H H H O O O O O O O O T T T T I I I I N N N N G G G G 4 4 4 4 .
  • Page 14 CBM-270 Service Manual · · · · P P P P o o o o w w w w e e e e r r r r S S S S u u u u p p p p p p p p l l l l y y y y F F F F a a a a i i i i l l l l u u u u r r r r e e e e...
  • Page 15 CBM-270 Service Manual · · · · P P P P r r r r i i i i n n n n t t t t i i i i n n n n g g g g F F F F a a a a i i i i l l l l u u u u r r r r e e e e...
  • Page 16 CBM-270 Service Manual Phenomenon Cause Check Method Repair Method Too much ink blot Faulty power supply Check whether or not Use the specified the specified AC adapter AC adapter. is used. Foreign substance Check thermal Dip a cotton swab or...
  • Page 17 CBM-270 Service Manual · · · · P P P P N N N N E E E E S S S S e e e e n n n n s s s s o o o o r r r r F F F F a a a a i i i i l l l l u u u u r r r r e e e e...
  • Page 18 CBM-270 Service Manual · · · · L L L L a a a a b b b b e e e e l l l l S S S S e e e e n n n n s s s s o o o o r r r r F F F F a a a a i i i i l l l l u u u u r r r r e e e e ( ( ( ( O O O O n n n n l l l l y y y y W W W W h h h h e e e e n n n n t t t t h h h h e e e e P P P P r r r r i i i i n n n n t t t t e e e e r r r r A A A A cc cc cc cco o o o mm...
  • Page 19 CBM-270 Service Manual 5 5 5 5 ..S S S S E E E E R R R R V V V V I I I I C C C C E E E E P P P P A A A A R R R R T T T T S S S S L L L L I I I I S S S S T T T T 5 5 5 5 .
  • Page 20 CBM-270 Service Manual 5 5 5 5 ..2 2 2 2 D D D D i i i i s s s s a a a a ss ss ss sse e e e m m m m b b b b l l l l e e e e D D D D r r r r a a a a w w w w i i i i n n n n g g g g...
  • Page 21 CBM-270 Service Manual 5 5 5 5 ..2 2 2 2 ..1 1 1 1 D D D D r r r r a a a a w w w w i i i i n n n n g g g g f f f f o o o o r r r r O O O O p p p p e e e e r r r r a a a a t t t t i i i i o o o o n n n n P P P P a a a a n n n n e e e e l l l l P P P P C C C C B B B B...
  • Page 22 CBM-270 Service Manual 5 5 5 5 ..3 3 3 3 P P P P a a a a r r r r t t t t s s s s L L L L i i i i s s s s t t t t f f f f o o o o r r r r C C C C o o o o n n n n t t t t r r r r o o o o l l l l B B B B o o o o a a a a r r r r d d d d Ref.
  • Page 23 CBM-270 Service Manual Ref. No. Q'ty Parts No. Description Remarks Chip Resistor CR10-103J R1,3,5,7-9,18, R1,3,5,7-9,18, 27,38,40 27,38,40 Chip Resistor CR10-333J R2,14-17,21, R2,14-17,21, 22,25 22,25 Chip Resistor CR10-221J R4,6,10,12,13,19, 23,26,29,39 Chip Resistor CR10-221J R4,6,10,12,13,19, 23,26,29,37,39 Chip Resistor CR10-303J Chip Resistor CR10-683J...
  • Page 24 CBM-270 Service Manual 5 5 5 5 ..4 4 4 4 P P P P a a a a r r r r t t t t s s s s L L L L a a a a y y y y o o o o u u u u t t t t D D D D r r r r a a a a w w w w i i i i n n n n g g g g 5 5 5 5 .
  • Page 25 CBM-270 Service Manual 5 5 5 5 ..4 4 4 4 ..2 2 2 2 S S S S e e e e r r r r i i i i a a a a l l l l I I I I n n n n t t t t e e e e r r r r f f f f a a a a c c c c e e e e ( ( ( ( S S S S o o o o l l l l d d d d e e e e r r r r S S S S i i i i d d d d e e e e ) ) ) )
  • Page 26 CBM-270 Service Manual 5 5 5 5 ..4 4 4 4 ..3 3 3 3 P P P P a a a a r r r r a a a a l l l l l l l l e e e e l l l l I I I I n n n n t t t t e e e e r r r r f f f f a a a a c c c c e e e e ( ( ( ( P P P P a a a a r r r r t t t t s s s s S S S S i i i i d d d d e e e e ) ) ) )
  • Page 27 CBM-270 Service Manual 5 5 5 5 ..4 4 4 4 ..4 4 4 4 P P P P a a a a r r r r a a a a l l l l l l l l e e e e l l l l I I I I n n n n t t t t e e e e r r r r f f f f a a a a c c c c e e e e ( ( ( ( S S S S o o o o l l l l d d d d e e e e r r r r S S S S i i i i d d d d e e e e ) ) ) )
  • Page 28 OSC 16.0MHz Domestic Use Only Kanji ROM Operation Panel Paper Near End Print Head Interface DIP Switch Label Detection Sensor Paper end With Label Function Only Head-up Driver Stepping DC 7.2 V DC 5 V Motor DC 7.2 V Power Supply Reset *1 Parallel --- CENTRONICS Compliant...
  • Page 29 CBM-270 Service Manual 6 6 6 6 ..2 2 2 2 C C C C i i i i r r r r c c c c u u u u i i i i t t t t D D D D i i i i a a a a g g g g r r r r a a a a m m m m 6 6 6 6 .
  • Page 30 CBM-270 Service Manual 6 6 6 6 ..2 2 2 2 ..2 2 2 2 P P P P a a a a r r r r a a a a l l l l l l l l e e e e l l l l I I I I n n n n t t t t e e e e r r r r f f f f a a a a c c c c e e e e ( ( ( ( C C C C B B B B M M M M - - - - 2 2 2 2 70...
  • Page 31 CBM-270 Service Manual 7 7 7 7 ..O O O O U U U U TL TLI I I I N N N N E E E E D D D D R R R R A A A A W W W W I I I I N N N N G G G G...
  • Page 32 CBM-270 Service Manual W W W W A A A A L L L L L L L L M M M M O O O O UN UNT T T T I I I I N N N N G G G G H H H H O O O O L L L L E E E E S S S S L L L L A A A A Y Y Y Y O O O O U U U U T T T T D D D D R R R R A A A A W W W W I I I I N N N N G G G G...