Citizen CBM-1000 User manual

LINETHERMAL PRINTER
MODEL CBM1000TYPE II
Rev.1.00 Newly issued on Dec. 17, 2001
Service Manual

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CBM1000 TYPE II Service Manual
REVISION
Rev.No. Date Comment
Rev.1.00 Dec. 17, 2001 Newly issued

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CBM1000 TYPE II Service Manual
INTRODUCTION
This manual describes the disassembly, reassembly, and maintenance procedures of the line thermal printer CBM1000
TYPE II. It is intended for field maintenance men.
FEATURES
The CBM1000 TYPE II is a compact-sized, line thermal printer developed for a variety of applications. It has abundant
built-in features, and can be used as a data communication terminal, POS terminal, kitchen terminal and for other
applications. Prior to using the printer, read this manual thoroughly to understand its contents.
1. Paper drop-in mechanism; when supplying or replacing paper rolls, all you have to do is just drop a paper roll
into the printer and close its cover. This will facilitate paper handling and head cleaning greatly.
2. Ease of paper threading and head cleaning.
3. High speed (150 mm/s), and low-noise thermal printing.
4. Front-side paper ejection method, which allows the printer to be installed and used anywhere with few
restrictions.
5. Hermetic covering structure, which helps prevent any foreign matter or liquid from getting into the printer.
6. Built-in input buffer.
7. Bar-code printing (Possible using special commands).
8. Page mode, which allows you to lay out pages freely.
9. Registration of user-defined characters and logos into flash memory.
10. Built-in Drawer Kick-Out interface.
11. Auto cutter mechanism provided as a standard unit.
12. Selection possible, as required, from two types: Easy-to-handle, built-in power supply type, and lightweight flat
AC adapter type.
13. Use of 58 mm wide paper rolls possible by using the partition supplied.

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CBM1000 TYPE II Service Manual
CONTENTS
1. HANDLING AND MAINTENANCE OF PRINTER........................................................................ 1
2. SPECIFICATIONS .............................................................................................................................. 2
2.1 Basic Specifications....................................................................................................................................... 2
3. DISASSEMBLYAND REASSEMBLY .............................................................................................. 3
3.1 Maintenance Tools......................................................................................................................................... 3
3.2 Disassembly Procedure ................................................................................................................................. 3
3.3 Reassembly Procedure................................................................................................................................... 3
3.3.1 Reassembly Precedure for Main body.................................................................................................. 4
3.3.2 Reassembly Precedure for Mechanism Unit ........................................................................................ 9
3.4 Lubrication .................................................................................................................................................. 15
3.4.1 Lubricant............................................................................................................................................. 15
3.4.2 Where to Lubricate ............................................................................................................................. 15
4. TROUBLESHOOTING..................................................................................................................... 16
4.1 Troubleshooting Procedure.......................................................................................................................... 16
4.2 Troubleshooting Guide ................................................................................................................................ 16
5. SERVICE PARTS LIST..................................................................................................................... 20
5.1 Parts List for Mechanism............................................................................................................................. 20
5.2 Disassembly Drawing.................................................................................................................................. 23
5.3 Parts List for Control PCB Assy.................................................................................................................. 25
5.4 Parts Layout Drawing.................................................................................................................................. 28
5.4.1 Control PCB Assy (Main Board Part Surface) ................................................................................... 28
5.4.2 Control PCB Assy (Main Board Soldering Surface) .......................................................................... 29
5.4.3 Control PCB Assy (Serial Interface) .................................................................................................. 30
5.4.4 Control PCB Assy (Parallel Interface) ............................................................................................... 31
5.4.5 Operation PCB Assy ........................................................................................................................... 32
5-4.6 Sensor PCB Assy................................................................................................................................ 33
5.4.7 PNE PCB Assy in PNE Lever Assy ................................................................................................... 34
6. DRAWING .......................................................................................................................................... 35
6.1 Block Diagram............................................................................................................................................. 36
6.2 Circuit Diagram ........................................................................................................................................... 37
6.2.1 Control PCB Assy (Main Board)........................................................................................................ 38
6.2.2 Control PCB Assy (Serial Interface) .................................................................................................. 38
6.2.3 Control PCB Assy (Parallel Interface) ............................................................................................... 39
7. OUTER DIMENSION ....................................................................................................................... 40
♦For the auto cutter unit (ACS-130), see the separate Service Manual.

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CBM1000 TYPE II Service Manual
1. HANDLING AND MAINTENANCE OF PRINTER
See the User’s Manual coming with the printer body.

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CBM1000 TYPE II Service Manual
Print method
Print width
Dot density
Print speed
Number of print columns*2
Character size
Character type code page
Logo registration/print
Types of bar code
Line spacing
Paper roll
Label detection
Interfacing
Input buffer
Supply voltage
Power consumption
AC adapter specification
Weight
Outside dimensions
Operating temperature and
humidity
Storage temperature and
humidity
Reliability
Safety Standard*3
2. SPECIFICATIONS
2.1 Basic Specifications
Line thermal dot print method
72 mm/576 dots, (54 mm/432 dots)*1
8 ×8 dots/mm (203 dpi)
150 mm/sec (Fastest, print density standard level), (1,200 dot lines/sec)
Font A: 48/42 (36/30)*1columns (12 ×24)
Font B: 64/56 (48/40)*1columns (9 ×24)
Font A: 1.25 ×3.00 mm; Font B: 0.88 ×3.00 mm
Alphanumeric characters, International characters, Code pages PC437, Katakana,
PC850, PC860, PC863, PC865, PC852, PC866, PC857, and Windows code page
Capable of registering user-defined characters and logos into flash memory.
UPC-A/E, JAN (EAN) 13/8 columns, ITF CODE 39, CODE 128, CODABAR,
CODE 93
4.23 mm (1/6 inches), selectable using commands
Thermal paper roll: 80 mm (58 mm) ×ø 83 mm
Thermal Label paper roll : 80 mm (58 mm) ×ø 83 mm
(See “ Print Paper Specifications”.)
Selects the L-Spec. (factory option)
Serial (RS-232C), Parallel (IEEE1284 compliant, Bi-directional communication)
4K bytes (72 bytes selectable with a DIP switch)
S type: AC 120/230 V ±10%;A type/D type: DC 24 V ±7%
Approx. 100 W
Rated input: AC 120 to 240 V, 50/60 Hz, 120 VA
Rated output: DC 24 V, 1.9 A (Peak 3.5A)
S type: Approx. 2.0 Kg; A type/D type: Approx. 1.4 Kg
S type: 145 (W) ×190 (D) ×157 (H) mm
A type/D type: 145 (W) ×190 (D) ×114 (H) mm
5 to 40°C, 35 to 85% RH (No condensation)
–20 to 60°C, 10 to 90% RH (No condensation)
Print head life: Pulse resistance 1 ×108pulses (Print ratio 12.5%)
Wear resistance 100 Km (At normal temperature/humidity with
recommended paper used)
Auto cutter life: 500,000 times of cutting (At normal temperature/humidity with
recommended paper used)
CBM1000II RF024D
CBM1000II PF024D
Item Model CBM1000II RF230S/A
CBM1000II PF230S/A
CBM1000II RF120S/A
CBM1000II PF120S/A
*1Represents the value when a 58 mm wide paper roll is used (User selectable).
*2The number of printable columns is selectable with a DIP switch.
*3Represents the safety standards acquired when CBM-made adapters (31AD series) are used.
Type —
31 AD-U 31 AD-E
UL, C-UL, FCC Class A TUV, GS, CE marking UL, C-UL, FCC ClassA
TUV, GS, CE marking
—

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CBM1000 TYPE II Service Manual
3. DISASSEMBLYAND REASSEMBLY
For maintenance operations, note the following:
• Do not disassemble/reassemble or adjust the machine, if it functions properly. Particularly, do not loosen screws
on any component, unless necessary.
• After completing an inspection and before turning on the power, be sure to check that there is no abnormality.
• During maintenance, be careful not to leave parts or screws unattached or loose inside the printer.
• When handling the thermal head or electronic component, do not use gloves or other aids which can easily cause
static electricity.
• When disassembling or reassembling, check wires and cables for any damage. Do not run them into a narrow
space or set them in improper positions.
• After reassembling, apply lubricant as required.
3.1 Maintenance Tools
• Screwdrivers (+) #1 and #2
• Tweezers
• Round nose pliers
• Brush for lubrication
• Cutting nipper
3.2 Disassembly Procedure
For disassembly, reverse the steps described in section 3.3, “Reassembly Procedure”.
3.3 Reassembly Procedure
Reassembly steps are divided into two parts: Printer assembly and printer mechanism assembly.

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CBM1000 TYPE II Service Manual
Insulator
M3 ×6
(ST, EXT, TW)
Bottom chassis
Rubber foot
Top cover
Front cover
Operation panel SA
M2.6 ×6 (BT)
Operation panel PCB assy
Operation panel
Operation sheet
3.3.1 Reassembly Procedure for Main Body
(1) Assembling Bottom Chasis SA
• Attach four rubber feet to the bottom chassis.
• Fasten the FG screws (M3 ×6). (Toothed
lock washer screws)
• Spread insulator of bottom chassis.
(2) Assembling Top Cover SA
• Attach the front cover.
• Attach the operation panel SA.
(3) Assembling Operation Panel SA
• Stick the operation sheet to the operation
panel.
• Secure the operation panel PCB assy with a
M2.6 ×6 screw (BT).
(Verify that FEED switch clicks when
pressed.)

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CBM1000 TYPE II Service Manual
(4) Assembling Printer Cover SA
• Attach the tear bar by pressing it into printer
cover as shown.
(5) Assembling Power Case SA
• Attach four rubber feet to the power case.
• Set ferrite core position at approx. 200 mm
from the end of power connector.
• Pass power connector through the cable port
in the bottom of power case and fasten as
shown.
• Place the AC adapter in power case.
• Pass tie band through tie band holes in power
case.
• Tuck AC adapter cable in power case and
clamp it with tie band.
Printer cover
Rubber foot
Cable routing
Tie band
Ferrite core
AC adapter
Tear bar
Power connector
Power case

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CBM1000 TYPE II Service Manual
(6) Installing Control PCB Assy
• Fit control PCB’s on-board connectors in
their respective holes in the raised section of
bottom chassis and then fit power switch in
between switch guide posts.
• Insert IF PCB assy through raised section of
bottom chassis and plug its connector into
mating socket on control PCB assy.
• Secure IF PCB assy to bottom chassis with
two screws (M3 ×6 (ST)).
• Secure corner B of control PCB assy with a
screw (M3 ×6 (ST)).
(Corner A will be secured together with FG
cable when the mechanism assy is installed.) M3 ×6 (ST)
IF PCB assy
Power switch
Control PCB assy II
M3 ×6 (ST)
Switch guide
Bottom chassis II
(7) Installing Mechanism Unit
• Insert hooks at the bottom of mechanism unit
into the hook holes in the raised end of
bottom chassis, and then plug the connectors
(A – E) to the mating sockets on control PCB.
• Exercise care not to bite the connectors under
mechanism unit.
• Secure mechanism unit to bottom chassis
with two screws (M3 ×6 (ST)).
• Secure control PCB assy to bottom chassis
together with FG cable, with an M3 ×6 (ST)
screw.
Mechanism unit
Bottom chasis
M3 ×6 (ST)
FG cable
Square hole

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CBM1000 TYPE II Service Manual
(8) Installing Top Cover SA
• Connect operation panel connector.
Pass operation panel connector under cable
holder.
• Cover with top cover SA directly over top of
mechanism unit
Fit power switch in the power switch cutout
in top cover SA.
• Lower the top cover SA as shown in the
diagram.
Press it down from above until it clicks into
place.
• Secure top cover SA to mechanism unit with
two screws (M3 ×6 (ST)).
Power switch
Top cover SA
Square hole
M3 ×6 (ST)
Cable holder
Operation panel
connector
Printer cover SA
M3 ×8 (BT)
(9) Installing Printer Cover SA
• Hitch the two rear corners 1.
• Hitch the two sections 2and press in
direction of arrow.
• Secure with two screws (M3 ×8 (BT)).

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CBM1000 TYPE II Service Manual
(10) Installing Power Case SA
(built-in power supply type)
• Secure printer to power case SA with four
screws (M3 ×8 (ST)) from the bottom of
power case SA.
• Plug power connector into printer’s power
connector port.
Power case SA
M3 ×8 (ST)
Power connector
IF PCB Assy
M3 ×6 (ST)
(11) Replacing IF PCB Assy
Remove IF PCB assy
• Take off the two screws (M3 ×6 (ST)) that
retain IF PCB assy.
• Pull out IF PCB assy from bottom chassis.
Install replacement IF PCB assy
• Insert replacement IF PCB assy into printer
until its card-edge connector properly plugs
into the mating socket.
• Secure IF PCB assy to bottom chassis with
two screws (M3 ×6 (ST)).

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CBM1000 TYPE II Service Manual
3.3.2 Reassembly Procedure for Mechanism Unit
(1) Assembling Auto Cutter SA
• Insert safety cover over cutter plate through
the slots (indicated by two upward arrows)
into the mating slots.
• Attach EXT spring-03 as shown.
• Attach auto cutter in between cutter plate and
safety cover in the direction of the arrow and
secure it with two screws (M3 ×6 (ST)).
(Use hole A for the partial-cut type, and hole
B for the full-cut type.)
Auto cutter
M3 ×6 (ST)
Safety cover
EXT spring-03
Cutter Plate
DIP switch cover
Slider
Center frame
Guide roller
Sensor plate
Sensor PCB assy
M2.6 ×6 (BT)
PNE lever assy
(2) Assembling Center Frame SA
• Set one end of sensor PCB assy in the holder
and secure the other end to center frame with
a screw (M2.6 ×8 (BT)) as shown.
• Attach slider to DIP switch cover.
• Install DIP switch cover, guide roller, sensor
plate, and PNE lever assy.
Grease both ends of guide roller shaft.

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CBM1000 TYPE II Service Manual
Head cable assy
M2.6 ×6 (BT)
Platen bushing
E-ring, 4
Platen
Platen gear
M3 ×6 (ST)
M3 ×4
Wire cover
Damper
Switch knob
Thermal head
Head cover
Top chassis
Cable holder
Rolller
(3) Assembling Platen SA
• Attach two E-rings, 4 to inner slots of platen
shaft.
• Insert two platen bushings on platen shaft
while making sure that their orientations are
correct. Grease the sliding surfaces of platen
bushings.
• Insert platen gear on the D-shaped cut end of
platen shaft.
• Attach two E-rings, 4 in the outer slots on
platen shaft.
(4) Assembling Top Chassis SA
• Install roller on damper.
• Secure damper to top chassis with a screw
(M3 ×6 (ST)).
• Pass two head cable assy connectors through
the square holes (A and B) in top chassis.
• Plug the connectors into the mating sockets
on thermal head, and then secure thermal
head to top chassis with two screws (M3 ×4).
• Secure head cover to thermal head with two
screws (M2.6 ×6 (BT)).
• Pass wire cover over head cable assy and
install wire cover on top chassis.
• Pass head cable assy under cable holder.
• Insert switch knob into switch knob aperture
while making sure that it is oriented properly.

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CBM1000 TYPE II Service Manual
M3 ×6 (ST)
Main chassis
M3 ×6 (ST)
Stepping motor
Pressure arm-R
EXT spring-01
Pressure arm-L
Main chassis
Brake
(5) Installing Brake and Stepping Motor
• Attach brake on main chassis with a screw
(M3 ×6 (ST)) while making sure that it is
oriented properly.
• Attach stepping motor on main chassis with
two screws (M3 ×6 (ST)), with its cables
dangled down.
(6) Installing Pressure Arms
• Attach pressure arm-R on bar ring (at
pivoting center) on the right side of main
chassis, and then install EXT spring-01 as
shown.
• Attach pressure arm-L on one of the stepping
motor retention screw head on the left side of
main chassis, and then attach EXT spring-01
as shown.

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CBM1000 TYPE II Service Manual
EXT spring-02
Main chassis
Lock lever-L-SA
Ejector
Lock lever-R-SA
Main chassis
M3 ×6 (ST)
Auto cutter SA
(7) Installing Lock Lever
• Pass lock lever-L-SAall the way through the
double fan-shaped hole in the left side of
main chassis and insert its end into another
double fan-shaped hole in the right side of
main chassis.
• Insert lock lever-R-SAon the end of lock
lever-L-SAthat protrudes from the right side
of main chassis.
• Press ejector onto the end of lock lever-L-SA.
• Attach EXT spring-02.
(8) Installing Auto Cutter SA
• Attach auto cutter SA in main chassis by
fitting its two bottom projections into the
respective holes.
• Fasten auto cutter SA to main chassis with
two screws (M3 ×6 (ST)).

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CBM1000 TYPE II Service Manual
Main chassis
Idle gear
M3 ×6 (ST)
Reduction gear
Gear holder
Main chassis
M3 ×6 (BT)
Center frame SA
FG cable
(9) Installing Stepping Motor Gear
• Grease gear holder bearing.
• Insert idle gear and then reduction gear over
the respective studs on gear holder.
• Fasten gear holder to main chassis with two
screws (M3 ×6 (ST)).
(10) Installing Center Frame SA
• Place center frame SA in main chassis. Pass
connector A through hole A, and connector B
through hole B.
• Secure center frame SA to main chassis with
four screws (M3 ×6 (BT)) together with the
FG cable installed as shown.

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CBM1000 TYPE II Service Manual
Flat surface
Main chassis
Platen bushing
Pressure arm
Platen SA
Brake disc
E-ring, 2
Head cable assy
Chassis shaft
Top chassis SA
Brake
(11) Installing Platen SA
1Insert the right end of platen SA into platen
SA holder, with the flat sides of platen
bushing kept in a horizontal position and the
pressure arm pressed down.
2Insert the left end of platen SA into the U-
shaped slot, with the flat sides of platen
bushing kept in a vertical position. While
pressing down pressure arm, rotate platen
bushing 90 degrees.
(12) Installing Top Chassis SA
• Attach the E-ring, 2 on one end of chassis
shaft.
• Insert top chassis SA’s brake disc into the
brake slot to a position where chassis shaft
can be passed through the pivoting center
hole of brake disc.
• Pass chassis shaft all the way across main
chassis.
• Attach another E-ring, 2 on the other end of
chassis shaft.
• Pass head harness through harness clamps as
shown.

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CBM1000 TYPE II Service Manual
3.4 Lubrication
3.4.1 Lubricant
Fluoil G-943 (Kanto Chemical Industries Co., Ltd.)
3.4.2 Where to Lubricate
A. Platen bushings and the platen shafts (2 places each)
B. Gear shafts of the gear holder (2 places)
C. Sliding surface of the brake disc
D. Lock shaft parts of the lock lever-R/L (2 places on both sides)
(See the following figure.)
E. Sliding parts of the pressure arm-R/L (3 places on both sides)
(See the following figure.)
F. U-shaped grooves of the main chassis, where the platen bushings are engaged (2 places on both sides)
(See the following figure.)
G. Both ends of guide roller shaft
D
E
F
E
E

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CBM1000 TYPE II Service Manual
4. TROUBLESHOOTING
4.1 Troubleshooting Procedure
When a trouble occurs, confirm its phenomenon, locate a defective part in accordance with 4.2 Troubleshooting
Guide, and troubleshoot as described below.
• Phenomenon: Find a trouble phenomenon in this column. If there are multiple phenomena, take all the
corresponding items into consideration. This allows you to specify a hidden defective part.
• Cause: Lists as many possible causes as possible. Guess a trouble cause out of them and take its check
method to specify the trouble cause.
• Check Method: Describes a check method to specify a trouble cause.
• Remedy: Troubleshoot by taking a remedy described in this column.
By troubleshooting in accordance with the above-mentioned procedure, you can troubleshoot efficiently with fewer
misjudgments.
4.2 Troubleshooting Guide
•Power Supply Failure
Cause
TheAC adapter is not
connected.
The fuse is gone.
The control PCB assy is
defective.
The circuit drive power is
abnormal.
Check Method
Check whether any
unspecified power has been
used so far.
Check whether the
specified fuse is used.
With a DC voltmeter,
measure the circuit drive
voltage.
Remedy
Connect the specified AC
adapter.
Use the specified AC
adapter.
Use the specified fuse.
Replace the control PCB
assy.
Replace the control PCB
assy.
Phenomenon
No power
(POWER lamp not
illuminated)
The fuse immediately goes
again after replacing with
new one.
♦If the fuse is gone with the specified AC voltage supplied to the AC adapter, it is likely that the thermal head unit or
control PCB assy is defective. Replace either defective one. Incidentally, check the wiring of the drawer and interface
cable.