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UP-250
Technical Manual
165 pgs4.36 Mb0

Casio UP-250 Technical Manual

EXTERNAL PRINTER
FEB. 2000
MODEL UP-250
(without price)
TECHNICAL MANUAL
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CONFIDENTIALITY AGREEMENT
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FCC CLASS A
FCC Compliance Statement
For American Users
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his or her own expense.
WARNING
The connection of a non-shielded printer interface cable to this printer will invalidate the FCC Verification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment.
You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.
FOR CANADIAN USERS
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
GEREÄUSCHPEGEL
Gemäß der Dritten Verordrung zum Gerätesicherheitsgecsetz (Maschinenlärminformations- Verordnung-3. GSGV) ist der arbeitsplatzbezogene Geräusch-Emissionswert kleiner als 70 dB(A) (basierend auf ISO 7779).
Introduction
PU-250 Series (Type B) printers are one-station printers for ECR and POS use that can print the results of weighing or measuring. The main features of the PU-250 Series (Type B) printers are the following:
o High-speed printing through logic-seeking control
o Excellent reliability and long life resulting from the use of two stepping motors, one for moving the carriage and one
for paper feeding
o Flexible paper feed setting permits printing in accordance with any user-defined format
o Command protocol based on ESC/POS, a widely used standard
o Built-in drawer kick-out interface provides capability to drive two drawers
o Selectable character fonts (7 x 9, 9 x 9)
o Semi-automatic paper loading capability
o AC adapter (included) provides compact power supply
o Compact and light in weight
o Automatic Status Back (ASB) function to automatically send printer status changes
o Auto-cutter euipped
o Two-color printing: black and red are selectable.
Notes and Cautions
Note:
Notes have important information and useful tips on the operation of your printer.
CAUTION:
Cautions must be observed to avoid damage to your equipment.
CONTENTS
Chapter 1 Features and General Specifications ......................................................1
Features .......................................................................................................................... 2
Printing Specifications ........................................................................................................ 2
Character Specifications..................................................................................................... 3
Paper .................................................................................................................................. 4
Auto-cutter .......................................................................................................................... 5
Paper Roll Supply Device................................................................................................... 5
Receive Buffer .................................................................................................................... 5
Electrical Specifications...................................................................................................... 5
Ribbon Cassette .................................................................................................................5
External Dimensions and Weight........................................................................................ 6
Environmental Specifications ............................................................................................. 6
Reliability ............................................................................................................................ 7
Safety Standards ................................................................................................................7
Printer Installation Position ................................................................................................. 7
Hardware Configuration ................................................................................................ 8
Main Unit Specifications ............................................................................................... 9
Paper Feed Motor............................................................................................................... 9
Carriage Motor.................................................................................................................... 9
Print Head Unit ................................................................................................................... 9
Home Position Sensor........................................................................................................ 9
Paper End Detector .......................................................................................................... 10
Paper Roll Near-end Detector (Optional) ......................................................................... 10
Connectors ................................................................................................................... 10
Interface Connector .......................................................................................................... 10
Power Supply Connector...................................................................................................11
Drawer Kick-Out Connector............................................................................................... 11
Interface ........................................................................................................................ 13
RS-232 Serial Interface .................................................................................................... 13
RS-485 Serial Interface (option) ....................................................................................... 16
IEEE 1284 Parallel Interface ............................................................................................ 16
Buttons and Switches ................................................................................................. 19
Power Switch....................................................................................................................19
Panel Button ..................................................................................................................... 19
DIP Switches ....................................................................................................................20
Panel LEDs ................................................................................................................... 22
Self-test......................................................................................................................... 22
Error Processing.......................................................................................................... 23
Printer Operation When an Error Occurs........................................................................... 23
Data Receive Error ............................................................................................................ 23
Buffer Full Printing ...................................................................................................... 23
Detectors and Printing ................................................................................................ 23
Hexadecimal Dump...................................................................................................... 24
Performing a Hexadecimal Dump..................................................................................... 24
Options .........................................................................................................................24
External Power Supply PS-170 ........................................................................................ 25
Chapter 2 Mechanism Configuration and Operating Principles...........................26
Printer Mechanism Operating Principles................................................................... 26
Print mechanism unit ........................................................................................................ 27
Print head unit movement................................................................................................. 28
Wire movement when a single dot is printed.................................................................... 28
Printing a character (9x9 font) ......................................................................................... 29
Paper Feed Mechanism Unit ............................................................................................ 30
Paper loading (semi-automatic loading) ........................................................................... 31
Paper feeding ...................................................................................................................31
Ribbon Feed Mechanism Unit .......................................................................................... 32
Ribbon feeding ................................................................................................................. 33
Detection Mechanism Unit................................................................................................ 34
Home position detection mechanism................................................................................ 34
Paper detection mechanism ............................................................................................. 35
Paper roll near-end detection mechanism (optional)........................................................ 35
Auto-cutter mechanism..................................................................................................... 35
Ribbon Switch Mechanism Unit ................................................................................. 36
Switching from Black to Red............................................................................................. 36
Releasing from Red to Black ............................................................................................ 36
Electrical Circuitry Operating Principles ................................................................... 37
Hardware Configuration.................................................................................................... 37
Principles of Operation ............................................................................................... 41
Power Supply Circuitry ..................................................................................................... 41
Control Circuitry................................................................................................................ 42
CPU .................................................................................................................................. 43
Various detector circuits.................................................................................................... 46
Host interface circuit ......................................................................................................... 47
Drawer kick-out drive circuit ............................................................................................. 47
DIP switch read circuit ...................................................................................................... 48
Printer Mechanism Driver Circuits ............................................................................. 50
Print head driver circuit..................................................................................................... 50
Paper feed motor driver circuit ......................................................................................... 51
Carriage motor driver circuit ............................................................................................. 51
Auto-cutter driver circuit.................................................................................................... 52
Chapter 3 Handling and Maintenance .....................................................................53
Handling Precautions .................................................................................................. 53
Storage Precautions ......................................................................................................... 53
Use Precautions ............................................................................................................... 53
Paper Handling Precautions ............................................................................................. 53
Ribbon Cassette Handling Precautions ............................................................................ 54
Replacing the Paper Roll............................................................................................. 54
Replacing the Ribbon Cassette .................................................................................. 57
Removing Jammed Paper ........................................................................................... 60
Using the Power Switch Cover ................................................................................... 64
Inspection and Maintenance....................................................................................... 65
Cleaning........................................................................................................................66
Lubricants..................................................................................................................... 66
Standard Lubrication ........................................................................................................ 66
Lubricants ......................................................................................................................... 66
Lubrication Points ............................................................................................................. 67
Tool List ........................................................................................................................ 67
Chapter 4 Troubleshooting ......................................................................................68
Self-test......................................................................................................................... 68
Initiating the Self-test ........................................................................................................68
Self-test Standby .............................................................................................................. 68
Ending the Self-test .......................................................................................................... 68
Troubleshooting Flowchart......................................................................................... 69
Troubleshooting Tables ............................................................................................... 76
Error Types and Countermeasures ............................................................................ 82
Chapter 5 Disassembly, Assembly, and Adjustment .............................................87
Small Part Specifications ............................................................................................ 87
Disassembly ................................................................................................................. 88
Removing the fuse............................................................................................................ 88
Removing the print head unit............................................................................................ 89
Removing the auto-cutter ................................................................................................. 91
Removing the main circuit board assembly ...................................................................... 92
Sub-assembly A ........................................................................................................... 94
Paper feed frame unit assembly ....................................................................................... 94
Main Assembly 1 .......................................................................................................... 98
Ribbon switch lever, ribbon release spring, ribbon release lever, ribbon intermediate gear, ribbon transmission gear, ribbon take-up assembly,
and ribbon drive plate assembly ....................................................................................... 98
Main Assembly 2 ........................................................................................................ 100
Tension plate assembly .................................................................................................. 100
Main Assembly 3 ........................................................................................................ 100
Paper feed frame assembly ............................................................................................ 100
Main Assembly 4 ........................................................................................................ 101
Carriage motor assembly................................................................................................ 101
Main Assembly 5 ........................................................................................................ 102
Carriage sub assembly................................................................................................... 102
Main Assembly 6 ........................................................................................................ 103
Carriage shaft assembly................................................................................................. 103
Main Assembly 7 ........................................................................................................ 104
Adjustment roller shaft holder assembly......................................................................... 104
Main Assembly 8 ........................................................................................................ 105
Carriage guide shaft assembly ....................................................................................... 105
Main Assembly 9 ........................................................................................................ 105
Belt tension spring assembly.......................................................................................... 105
Main Assembly 10 ...................................................................................................... 106
Sensor assembly ............................................................................................................ 106
Main Assembly 11 ...................................................................................................... 108
Carriage motor heat sink assembly ................................................................................ 108
Main Assembly 12 ...................................................................................................... 108
Print head FPC assembly ............................................................................................... 108
Main Assembly 13 ...................................................................................................... 110
Print head unit ................................................................................................................ 110
Main assembly 14....................................................................................................... 111
Left cover fixing plate and right cover fixing plate........................................................... 111
Main Assembly 15 ...................................................................................................... 112
Ribbon frame earth plate ................................................................................................ 112
Main Assembly 16 ...................................................................................................... 113
Ribbon frame assembly , ribbon frame spring, and ribbon frame fixing plate.................. 113
Main Assembly 17 ...................................................................................................... 114
Thumb-screw and head cover ........................................................................................ 114
Main Assembly 1 (Case Unit).................................................................................... 115
Lower cutter plate assembly ........................................................................................... 115
Main Assembly 2 (Case Unit).................................................................................... 116
Upper plate assembly ..................................................................................................... 116
Main Assembly 3 (Case Unit).................................................................................... 118
Main circuit board assembly ........................................................................................... 118
Main Assembly 4 (Case Unit).................................................................................... 119
Inserting the cables ........................................................................................................ 119
Main Assembly 5 (Case Unit).................................................................................... 120
Lower case assembly ..................................................................................................... 120
Main Assembly 6 (Case Unit).................................................................................... 121
Manual cutter assembly and auto-cutter fixing plate ...................................................... 121
Main Assembly 7 (Case Unit).................................................................................... 123
Auto-cutter assembly ...................................................................................................... 123
Main Assembly 8 (Case Unit).................................................................................... 126
Paper roll receive rollers, upper case, guide roller, and switch panel assemblies .......... 126
Main Assembly 9 (Case Unit).................................................................................... 128
Interface circuit board assembly and connector plate .................................................... 128
Main Assembly 10 (Case Unit).................................................................................. 130
Lower plate, ROM cover, and rubber foot assembly....................................................... 130
Main Assembly 11 (Case Unit) .................................................................................. 131
Main cover assembly ...................................................................................................... 131
Main Assembly 12 (Case Unit).................................................................................. 132
Near-end detector assembly (optional)........................................................................... 132
Adjustment ................................................................................................................. 134
Platen gap adjustment.................................................................................................... 134
Appendix....................................................................................................................135
RS-485 Serial Interface .............................................................................................. 135
Main Circuit Board Parts Layout .............................................................................. 140
RS-232 Serial Interface Circuit Board Parts Layout ............................................... 141
IEEE 1284 Parallel Interface Circuit Board Parts Layout ....................................... 142
RS-485 Serial Interface Circuit Board Parts Layout ............................................... 143
Main Circuit Board Diagram...................................................................................... 144
RS-232 Serial Interface Circuit Board Diagram....................................................... 145
IEEE 1284 Parallel Interface Circuit Board Diagram............................................... 146
RS-485 Serial Interface Circuit Board Diagram....................................................... 147
Printer Mechanism Unit Overall Exploded Diagram ............................................... 148
Case Unit Overall Exploded Diagram....................................................................... 149
Printer Mechanism Unit Lubrication Points Diagram............................................. 150
Case Unit Lubrication Points Diagram .................................................................... 151
Parts List....................................................................................................................152
EXPLODED DIAGRAM FOR TM-U200B/U210B NO.1 .............................................154
EXPLODED DIAGRAM FOR TM-U200B/U200PB/U210B/U210PB NO.2 ................155
Figure 1-1 PU-250 appearance
POWER LED
Power switch
PAPER OUT LED
ERROR LED
FEED button
(PAPER OUT/PRESS FEED)
PROM
DIP switches
Power supply connector
Drawer kick-out connector
Frame ground screw
Interface connector
Frame ground screw
— 1 —
Chapter 1
Features and General Specifications
Features
Printing Specifications
NOTE:
If the print duty ratio is too high, the operation of the print head is stopped by the duty limit. In such circumstances, the print speeds shown above cannot be guaranteed. cpi = characters per inch.
Printing method: Serial impact dot-matrix Head wire configuration: 9-pin serial type
Figure 1-2 Dot configuration
Dot pitch: 0.353 mm (1/72") Dot wire diameter 0.29 mm (0.01") Printing direction: Bidirectional with logic seeking Printing width: 63.34 mm (2.49") Line feed: 4.233 mm (1/6"): default setting
Programmable in units of 1/144 inch by using commands.
Paper feed method Friction feed Paper feed speed: Approximately 4.17 inches/second (25 lines/second) during
continuous paper feeding
Characters per line: See the table on the next page. Characters per inch: See the table on the next page.
Total dot count (horizontal direction)
7 x 9 font: 400 half-dot positions per line 9 x 9 font: 400 half-dot positions per line
Print speed Approximately 3.5 lines/second (40 columns, 16 cpi)
Approximately 6.4 lines/second (16 columns, 16 cpi)
0.29 mm (0.01") (wire diameter)
0.317 mm (0.012")
0.353 mm (0.014")
— 2 —
Character dimensions, characters per inch, characters per line
NOTE:
The default font is 7 x 9; the dot spacing between characters is either 3 half dots or 2 half dots, depending on the setting of DIP switch 2-1.
Character Specifications
Character Structure
Horizontal x Vertical
Character
Structure
Character Set
Character
Dimensions
WxH
Dot Spacing
Between
Characters
Characters Per
Line (cpl)
Characters Per
Inch (cpi)
7 x 9
ANK
1.2 x 3.1 mm (.047 x .122")
 3 half dots 40 16
Graphics
1.7 x 3.1 mm (.070 x .122")
0 40 16
9 x 9
ANK
1.6 x 3.1 mm (.063 x .122")
 3 half dots 33 13.3
Graphics
2.0 x 3.1 mm (.079 x .122")
0 33 13.3
7 x 9
ANK
1.2 x 3.1 mm (.047 x .122")
 2 half dots 42 17.8
Graphics
1.6 x 3.1 mm (.063 x .122")
0 42 17.8
9 x 9
ANK
1.6 x 3.1 mm (.063 x .122")
 2 half dots 35 14.5
Graphics
1.9 x 3.1 mm (.075 x .122")
0 35 14.5
Character sets: Alphanumeric: 95
International: 32 Graphics: 128 x 8 pages
Character structure: 7 x 9 with 400 half-dot positions per line
9 x 9 with 400 half-dot positions per line
Figure 1-3 Character size (7 x 9 font example)
3.1 mm (0.122")
2.4 mm
(0.094")
1. 24 m m (0 .049" )
1.59 m m (0.0 63")
0.159 mm (0.006")
0.353 mm (0.014")
— 3 —
Paper
(*1)
This dimension shows the distance from the manual cutter to the print position.
(*2)
Values fo r the p rin ting are a are calcul ated (between dot cen ters) wit h the wi re diameter (0.29 m m [.011 "]).
Paper types: Paper roll: Plain paper or pressure-sensitive paper
Paper roll width: 76 ± 0.5 mm (2.99 ± .020")
Paper roll maximum diameter:
83 mm (3.27")
Paper roll core: Unless there is an optional near-end detector, you cannot use a paper
roll with the core and paper glued together.
Normal paper: Thickness: 1 sheet: 0.06 to 0.085 mm (.0024 to .0034")
Weight: 52.3 to 64 g/m
2
(13.9 to 17 lb)
(45 to 55 kg/1000 sheets/1091 x 788)
Pressure-sensitive paper Original sheet + up to 1 copy sheet
Thickness: 1 sheet: 0.05 to 0.08 mm (.0020 to .0031")
Total thickness: 0.2 mm (.0079") or less Recommended paper: Mitsubishi - carbonless paper (blue) Top and middle sheets: N40Hi
paper thickness: 0.06 mm (.0024") weight: 47.2 g/m
2
(12.6 lb)
Bottom sheet: N60
paper thickness: 0.08 mm (.0031") weight: 68.0 g/m
2
(18.1 lb)
Figure 1-4 Printing area
Maximum of 200 dots, 400 positions
76 mm (2.99")
20.2 mm (0.79") (*1)
Cutting position (manual cutter)
(*2)
63.34 mm (2.49")
[5.9 mm (0.23")] [6.76 mm (0.27")]
Cutting position (auto-cutter)
27 mm (1.063")
— 4 —
Auto Cutter
Partial cut is executed by a command. (A partial cut leaves one point uncut.)
Paper Roll Supply Device
Receive Buffer
Either 1KB or 40 bytes, selectable by DIP switches.
Electrical Specifications
Ribbon Cassette
Ribbon cassette specifications
(*1)
Ribbon life is based on the following conditions:
Character font: 7 x 9 font (with descenders) Print pattern: ASCII 96-character rolling pattern. See the specification published by EPSON for the print
pattern example.
NOTE:
Malfunctions and other problems may occur if a ribbon cassette other than the specified one is used.
Supply device: Drop-in loading
Power supply One of the following five AC adapters is included, depending on
the specifications:
AC adapter specifications
Power consumption (except when driving drawer kick-out):
Operating: Mean average 43 W
Standby: Average 6 W
Model number Color Ribbon life (*1) ERC-38 (P) Purple 4 million characters (with continuous printing at 25° C [77° F]) ERC-38 (B) Black 3 million characters (with continuous printing at 25° C [77° F])
ERC-38 (B/R)
Black and Red
Black: 1.5 million characters (with continuous printing at 25° C [77° F]) Red: 750,000 characters (with continuous printing at 25° C [77° F])
Settings and shipment
Input voltage range
Model name
Japan 100 V ± 10%, 50/60 Hz PA-6508 North America 120 V ± 10%, 60 Hz PB-6509 Europe (Germany) 230 V ± 10%, 50 Hz PB-6510 Europe (U.K.) 230 V ± 10%, 50 Hz PA-6511 Australia 240 V ± 10%, 50 Hz PA-6513
— 5 —
External Dimensions and Weight
Environmental Specifications
Height: 150 mm (5.91") Width: 160 mm (6.30") Depth: 248 mm (9.76") Weight: Approximately 2.5 kg (5.5 lb) Color: EPSON standard gray
Temperature: Operating: 0° to 50° C (32° to 122° F)
At 34° C (93° F) or higher, there are humidity restrictions; see the figure below.
Storage: –10° to 50° C (14° to 122° F), except paper and ribbon
Humidity: Operating: 10% to 90% RH (non-condensing)
Storage: 10% to 90% RH (non-condensing), except paper and ribbon
Figure 1-5 Operating temperature and humidity range
Vibration resistance: When packed:
Frequency: 5 to 55 Hz Acceleration: 2 G Sweep: 10 minutes (half cycle) Duration: 1 hour Directions: x, y, and z
Operating Temperature Range
40° C (104° F), 65%
34° C (93° F), 90%
50° C (122° F), 35%
80
60
40
20
0
0 10 40
Environmental Temperature
Relative Humidity [% RH]
50
90
10
3020
— 6 —
Reliability
Safety Standards
The following standards are applied only to the printers that are so labeled.
Printer Installation Position
Install the printer horizontally. Make sure it does not tilt more than 15°. The printer must also be installed so that it does not move or vibrate during paper cutting or the drawer kick-out operation. Fastening tape is available as an option.
Impact resistance: When packed:
Package: EPSON standard package Height: 60 cm (23.62")
Directions: 1 corner, 3 edges, and 6 surfaces
When unpacked:
Height: 5 cm (1.97") Directions: Lift one edge and release it (for all 4 edges)
Life
Mechanism: 7,500,000 lines (See the UP-250) Specification for the print color
switching number.
Print head: 150 million characters (using an average of 2 dots/wire per character.)
(The print pattern is shown in the UP-250 Specification in Figure A-1.)
Auto cutter: 800,000 cuts
End of life is defined as the point at which the printer reaches the beginning of the wear out period.
MTBF 180,000 hours
Failure is defined as a random failure occurring within the time of the random failure period.
MCBF 18,000,000 lines
This is an average failure interval based on failures relating to wear out and random failures up to the life of 7,500,000 lines.
For Europe: CE Marking:  EN55022, EN50082-1, EN45501
Safety standards:  TÜV
EMI:  FCC class A
For USA:
Safety standards:  UL1950-2TH-D3
c-UL
— 7 —
Hardware Configuration
Figure 1-6 UP-250 main unit configuration
Carriage motor
Paper feed motor
Paper end detector
Print head unit
Home position sensor
Paper roll near-end detector (optional)
Main circuit board
Interface circuit board
— 8 —
Type: 4-phase, 48-polarity, PM-type stepping motor Drive voltage: 24 VDC ± 10% Winding resistance: 58 Ω ± 2.9 Ω at 25°C (77°F), per phase
Current consumption: Peak: 1.1 A in worst case
Average: 200 mA at 24 VDC, 25°C (77°F), 600 pps
350 mA maximum
Type: 4-phase, 48-polarity, PM-type stepping motor Drive voltage: 24 VDC ± 10% Winding resistance: 39.5 Ω ± 1.9 Ω at 25°C (77°F), per phase
Current consumption: Peak: 1.5 A maximum
Average: 400 mA at 24 VDC, 25°C (77°F), 952 pps
600 mA maximum
Number of solenoids: 9 Winding resistance: 19.2 Ω ± 5% at 25°C (77°F), per phase Drive voltage: 24 VDC ± 10%
Type: Photo sensor Voltage: 5 VDC ± 5%
Output level: LOW when the carriage home position is detected
— 9 —
Main Unit Specifications
Paper Feed Motor
Carriage Motor
Print Head Unit
Home Position Sensor
Paper End Detector
Paper Roll Near-end Detector (Optional)
Connectors
Figure 1-7 Connector panel (serial interface)
Figure 1-8 Connector panel (parallel interface)
Interface Connector
See the interface section.
Type: Microswitch
Voltage: 5 VDC ± 5%
Output level: High when paper end is detected
Type: Microswitch
Voltage: 5 VDC ± 5%
Output level: Low when a paper near-end is detected
Frame ground screw connector
Power supplyDrawer kick-out
connector
Interface connector
Frame ground screw
Power supply connector
Drawer kick-out connector
Frame ground
screw
Interface connector
Frame ground
screw
— 10 —
— 11 —
This connector is used to connect the printer to an external power source.
NOTE:
Be sure to ground the frame ground (FG) screw on the board at the bottom of the unit. Ground
wire terminal hole diameter: 3.2 mm (.13"). Ground wire thickness: AWG 18 or equivalent.
A pulse specified by the
ESC p
command is output to the drawer kick-out connector. The host
can confirm the status of the input signal by using the
GS a
,
GS r
, or
DLE EOT
commands.
The host computer can check the drawer open/closed status with the
DLE EOT, GS a
, and
GS r
commands.
Pin assignments: See the table below.
Pin Number
1 + power supply
2 GND
3NC
Shell Frame GND
Pin Number Signal name Direction
1 Frame GND
2
Drawer kick-out drive signal 1 (See "Drawer kick-out drive signal," below.)
Output
3
Drawer open/close signal (See "Drawer open/closed signal," below.)
Input
4 +24
—
—VDC
5
Drawer kick-out drive signal 2 (See "Drawer kick-out drive signal," below.)
Output
6 Signal GND —
Input signal level: LOW = 0 V
HIGH = 2 to 5 V (at connector pin 3)
2
3 1
Signal Name
Power Supply Connector
Drawer Kick-Out Connector
Power supply connector pin assignments
Drawer kick-out connector pin assignments
Drawer open/closed signal
NOTES:
❏
Two driver transistors cannot be energized simultaneously.
❏
The drawer drive duty must be as shown below:
❏
Be sure to use the printer power supply (connector pin 4) for the drawer power source.
Output signal: Voltage = Approximately 24 VDC
Current = 1 A or less
Output waveform: Outputs the waveforms in Figure 1-8 to pins
2 and 5 of the connector.
t
1 (ON time) and t2
(OFF time) are specified by
ESC p
.
t
1 x 2 ms
t
2 x 2 ms
ON time
(ON time + OFF time)
≤ 0.2
— 12 —
Drawer kick-out drive signal
CAUTION:
To avoid overcurrent, resistance of the drawer kick-out solenoid must be 24 Ω or more.
Figure 1-9 Drawer kick-out drive signal output waveform
CAUTION:
Do not connect a telephone line to the drawer kick-out connector; otherwise the printer and the telephone line may be damaged.
Interface
RS-232 Serial Interface
NOTES:
❏
Handshaking, data word length, baud rate, and parity depend on DIP switch settings.
❏
Data transmitted from the printer has 1 stop bit (fixed).
Data transmission: Serial (compatible with RS-232)
Synchronization: Asynchronous
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK = -3 to -15 V: Logic 1/OFF
SPACE = +3 to +15 V: Logic 0/ON
Baud rates: 4800, 9600 bps
Data word length: 7 or 8 bits
Parity settings: None, even, odd
Stop bits: 1 or more
Connector: Female D-SUB 25-pin connector or equivalent
— 13 —
NOTES:
❏
When the remaining space in the receive buffer is 16 bytes, the printer buffer becomes full. This status continues until the space in the receive buffer increases to 32 bytes.
❏
The printer ignores data received when the remaining space in the receive buffer is 0 bytes.
❏
XON is not transmitted when the receive buffer is full.
Pin number Signal name I/O Function
1 FG — Frame ground
2 TXD O Transmit data
3 RXD I Receive data
4 RTS O Same as the DTR signal
6 DSR I This signal indicates whether the host computer can receive data. SPACE
indicates the host computer can receive data, and MARK indicates the host computer cannot receive data. When DTR/DSR control is selected, the printer transmits data after confirming this signal (except when transmitting data by
DLE
EOT
and
GS a
). When XON/XOFF control is selected, the printer does not check this signal. Changing the DIP switch setting lets this signal be used as a reset signal for the printer. The printer is reset when the signal remains MARK for 1 ms or more.
7 SG — Signal ground
20 DTR O 1) When DTR/DSR control is selected, this signal indicates whether the printer is
busy. SPACE indicates the printer is ready to receive data, and MARK indicates the printer is busy. A busy condition can be changed using DIP SW 1-8 as follows:
2) When XON/XOFF control is selected: This signal indicates whether the printer is correctly connected and ready to receive data. SPACE indicates the printer is ready to receive data. The signal is always SPACE except in the following cases:
❏
During the period after power on until the printer is ready to receive data.
❏
During self test.
25 INIT
I Changing DIP switch setting enables this signal to be used as a reset signal for
the printer (see the DIP switch settings in the “Buttons and Switches” section of this chapter). The printer is reset when the signal remains SPACE for 1 ms or more.
Printer
DIP SW 1-8 status
ON OFF
1. During the period from when power is turned on (including reset using the interface) to when the printer is ready to receive data.
BUSY BUSY
2. During self-test BUSY BUSY
3. During paper feeding using the paper FEED button — BUSY
4. When the printer stops printing for a paper-end. — BUSY
5. When an error has occurred. — BUSY
6. When a temporary abnormality occurs in the
power supply voltage
— BUSY
7. When the receive buffer becomes full. (See Notes.) BUSY BUSY
Off line
20 DTR
RS-232 interface connector pin assignments and functions
Interface Connector Pin Assignments
— 14 —
Switching between on line and off line
The printer does not have an on-line/off-line button. It goes off line under the following conditions:
❏
Between the time when power is turned on (including reset using the interface) and when the printer is ready to receive data.
❏
During the self-test.
❏
During paper feeding using the paper
FEED
button.
❏
Between the time when the printer stops printing for a paper-end and when the on-line recovery wait time finishes after loading paper (if an empty paper supply is detected by either the paper roll end detector or the paper roll near-end detector with a printing halt feature enabled for low paper by
ESC c 4
).
❏
When an error has occurred.
XON/XOFF transmission timing
When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows.
(
*1) XON is not transmitted when the receive buffer is full.
(*2) XOFF is not transmitted when the receive buffer is full.
NOTE:
The XON code is 11H and the XOFF code is 13H.
Printer status
DIP SW 1-8 status
ON OFF
XON transmission
• When the printer goes on line after turning power on or after reset using the interface.
• When the receive buffer is released from the buffer full state.
• When the printer switches from off line to on line (*1).
• When the printer recovers from an error through a command.
Transmission Transmission
----
----
Transmission
Transmission Transmission Transmission Transmission Transmission
XOFF transmission
• During an error condition.
• When the receive buffer becomes full (*2).
Transmission
----
Transmission Transmission
Serial interface connection example
NOTES:
❏
Set handshaking so that transmitted data can be received.
❏
Transmit data to the printer after turning on the power and initializing the printer.
Host
Printer
TXD
DSR
CTS
RXD
DTR
FG
SG
RXD
DTR
RTS
TXD
DSR
FG
SG
— 15 —
RS-485 Serial Interface (option)
Refer to the Appendix for details.
IEEE 1284 Parallel Interface
Complies with the standard described in t he IEEE 12 84 specificat ion by the I nstitute o f Electr ical and Electronic Engineers, Inc.
Specification
Data transmission: 8-bit parallel Synchronization: Externally supplied STRO BE
signals
Handshaking:
and BUSY signals Signal levels: TTL-compatible Connector: 57RE-40360-830B (DDK) or equivalent (IEEE 1284 Type B) Reverse communication
(Printer to host): Nibble or byte mode
Reverse Mode (Data Transmission from Printer to Host)
Status data transmission from the printer to the host occurs in nibbl e or byte mode. These modes allow data transmission from the asynchronous printer under control of the host. Data transmissions in nibble mode are made via the existing control lines in u nits of four bits (a nibble). In byte mode, data transmissions proceed by making the eight-bit data lines bidirectional. Both modes fail to proceed concurrently in compatibility mode, causing half duplex transmission. The IEEE 1284 nibble/byte modes are under development in draft form and may be subject to change.
ACK
— 16 —
Interface Connector Pin Assignments
IEEE 1284 interface connector pin assignments and functions
NOTES:
❏ ❏ ❏
❏ ❏
❏
Overscored signal names are LOW active signals. If a host does not provide for the signal lines listed above, two-way communication fails. For interfacing, signal lines must use twisted pair cables with the return sides connected to signal ground level. Interfacing conditions must all be based on the TTL level to meet the characteristics described below. In addition, both the rise and fall time of each signal must be 0.5 µs or less. Data transmission must not ignore the ACK or BUSY signal. An attempt to transmit data with either the ACK or BUSY signal ignored can cause lost data. (Data transmissions to the printer must be made after verifying the ACK signal or while the BUSY signal is at a LOW level.) Interface cables should be as short in length as possible.
NC: Not Connected ND: Not Defined
— 17 —
Pin number Source Compatibility Mode Nibble Mode Byte Mode
1 Host Strobe
Host Clk Host Clk
2 Host/Ptr Data0 (LSB) Data0 (LSB) Data0 (LSB)
3 Host/Ptr Data1 Data1 Data1
4 Host/Ptr Data2 Data2 Data2
5 Host/Ptr Data3 Data3 Data3
6 Host/Ptr Data4 Data4 Data4
7 Host/Ptr Data5 Data5 Data5
8 Host/Ptr Data6 Data6 Data6 9 Host/Ptr Data7 (MSB) Data7 (MSB) Data7 (MSB)
10 Printer Ack
PtrClk PtrClk
11 Printer Busy PtrBusy/Data3,7 PtrBusy
12 Printer PError
AckDataReq/ Data2,6
AckDataReq
13 Printer Select Xflag/Data1,5 Xflag
14 Hostr AutoFd
HostBusy HostBusy
15 NC ND ND
16 GND GND GND
17 FG FG FG
18 Printer Logic-H Logic-H Logic-H
19-30 GND GND GND
31 Host Init
Init Init
32 Printer Fault DataAvail /Data0, 4 DataAvail
33 GND ND ND
34 Printer DK_STATUS ND ND
35 Printer +5V ND ND
36 Host SelectIn
1284-Active 1284-Active
Reception of status from the printer through the bidirectional parallel interface
In bidirectional parallel interface operation, printer status transmission is available using the two-way communication facility of the IEEE 1284-compatible nibble/byte modes. In this case, unlike in RS-232 serial interface operation, real-time interruptions from the printer to the host are disabled, and so you must pay attention to the following.
❏
The maximum capacity of the printer’s internal buffer is 100 bytes (except ASB status). Status signals exceeding this capacity are discarded. To prevent possible loss of status, the host must be ready for data reception (Reverse Mode).
❏
When ASB is used, the host is preferably in the wait state for data reception (Reverse Idle Mode). When this state is not available, the host enters Reverse Mode to continually monitor data presence.
❏
When ASB is used, preference is given to ASB status for transmission over other status signals. Any accumulated ASB status signals left for transmission from the last to the newest ASB status transmissions are transmitted together at one time as one ASB status showing the presence of change, followed by the latest ASB status.
Example: In the normal (wait) state, the ASB status is configured as follows:
In a sequence of operations including near end detection and the paper FEED button being pressed and released, the following pieces of data are accumulated.
When ASB status is received following this, a total of eight (8) bytes of ASB will be transmitted as follows: Accumulated ASB (
➀+➁+➂).
First Status Second Status Third Status Fourth Status
0001 0000 0000 0000 0000 0000 0000 0000
First Status Second Status Third Status Fourth Status
➀
0001 0000 0000 0000 0000 0011 0000 0000
Near end detection.
➁
0101 1000 0000 0000 0000 0011 0000 0000
Paper FEED button is pressed.
➂
0001 0000 0000 0000 0000 0011 0000 0000
Paper FEED button is released.
First Status Second Status Third Status Fourth Status
Accumulated ASB (
➀+ ➁+ ➂
) 0101 1000 0000 0000 0000 0011 0000 0000
+ First Status Second Status Third Status Fourth Status
The latest ASB (➂) Fourth Status
0001 0000 0000 0000 0000 0011 0000 0000
— 18 —
Notes on setting DIP switch 1-8 to ON
The printer mechanism stops but does not become busy when an error occurs, printing stops for a paper end, or paper is fed using the FEED button.
When setting DIP switch 1-8 to ON to enable handshaking with the printer, be sure to check the printer status with
GS a
and ASB function. In this setting, the default value of
n
for
GS a
is 2.
The printer automatically transmits the printer status, depending on on-line/off-line changes.
When using
DLE EOT
and
DLE ENQ
, be sure that the receive buffer does not become full.
❏
If the host cannot transmit data when the printer is busy or if an error occurs,
DLE EOT
and
DLE ENQ
cannot be used when printer is busy because the receive buffer has become full.
❏
With a host that can transmit data when the printer is busy, if the printer’s receive buffer becomes full while the host is sending bit-image data, a
DLE EOT
or
DLE ENQ
command transmitted during sending of bit-image data is processed as bit-image data, not as a command. Secondly, any data transmitted when the receive buffer is full may be lost.
Example: Check printer status using
GS r
after transmitting each line of data and use the 1KB
receive buffer. Transmit one line of data so that the receive buffer does not become full.
Buttons and Switches
Power Switch
Note:
Turn on the power only after connecting the power supply.
Panel Button
The panel button is enabled or disabled by the
ESC c 5
command. This button is inactive if it is
disabled.
Note:
The
ESC c 5
command enables or disables the panel button. When disabled, the button does not
function. However, when loading a paper roll, you can feed paper with the
FEED
button during the
paper loading waiting time if the paper loading waiting time is set by
GS z 0
. Press the
FEED
button
again after the
PAPER OUT LED
starts blinking to return the printer to the on-line state.
Type: Rocker switch
Function: The power switch turns the power on or off.
Feed
(FEED
) button: Type: Non-locking push button
Function: Feeds paper based on the line feed amount set by
ESC 2
and
ESC 3
.
— 19 —
DIP Switches
Serial interface (RS-232 and RS-485 (option))
The DIP switches are located at the bottom of the case.
NOTES:
❏
Do not change the setting of DIP switch 2-2 (fixed to ON).
❏
Changes in DIP switch settings (excluding switches 2-3 and 2-4, which are I/F reset signals) are recognized only when printer power is turned on or reset using the interface. If the DIP switch setting is changed after printer power is turned on, the change does not take effect until the printer is turned on again or reset.
Parallel interface (IEEE 1284)
The DIP switches are located at the bottom of the case.
DIP switch 1
DIP Switch Function ON OFF
1 Data receive error Ignored Prints “?”
2 Receive buffer capacity Data buffer 40 bytes Data buffer 1KB
3 Handshaking XON/XOFF DTR/DSR
4 Data word length 7 bits 8 bits
5 Parity check Yes No
6 Parity selection Even Odd
7 Baud rate selection 4800 bps 9600 bps
8 Busy condition When the receive buffer is full
When the receive buffer is full in off-line status
DIP switch 2
DIP Switch Function ON OFF
1
Print column selection 7 ✕ 9 font/9 ✕ 9 font
42CPL/35CPL 40CPL/33CPL
2
For internal use only Setting must not be changed. (Fixed to ON.)
3 I/F pin 6 reset signal Enabled Disabled
4 I/F pin 25 reset signal Enabled Disabled
DIP switch 1
DIP Switch Function ON OFF
1 Auto line feed Enabled Disabled
2 Receive buffer 40 bytes Approximately 1KB
3-7 Undefined
8 Busy condition
Receive buffer full Scanning data
Off-line Receive buffer full Scanning data
— 20 —
NOTES:
❏
Do not change the setting of DIP switches 2-2 and 2-4 (fixed to ON).
❏
Changes in DIP switch settings (excluding switch 2-4, which is the I/F reset signal) are recognized only when printer power is turned on or reset using the interface. If the DIP switch settings are changed after printer power is turned on, the change does not take effect until the printer is turned on again or reset.
DIP switch 2
DIP Switch Function ON OFF
1
Print column selection
I/F Init reset signal
7 ✕ 9 font/9 ✕ 9 font
42CPL/35CPL 40CPL/33CPL
2 Internal use (See Notes.)
3 Undefined
4
Fixed to ON Fixed to ON
— 21 —
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