Current Loop Interface. OKI ML 3390
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Appendix D: Interface Data
Term
Number of stop bits
Transmission protocols
Interface connection
Description
one or more bits three protocols on printer side: 25-pin plug, DB-25S on cable side: or equivalent,
25-pin plug, DP-25P or equivalent see table for interface signals Interface signals
The interface signals, pin assignment and circuits of the RS-232C coresident interface are not mentioned again here, as they are like the simple RS-232C interface, described earlier in this chapter..
Current Loop Interface
Pin Signal Direction Description
1 Protective Ground, PG ---
2 - 6 ---
7 Signal Ground, SG ---
---
8
9
10
---
Current Loop, D+
Receive loop
Current Loop, D-
Receive loop
--to printer to printer connected to the printer’s casing not assigned
Signal Ground not assigned printer receive signal for serial data return line for D+ signal
11,12 ---
13 Signal Ground, SG ---
---
14 - 17 ---
18 Current Loop, B+
Send loop
19 Current Loop, B-
Send loop
--not assigned
Signal Ground not assigned from printer printer send signal for serial data * from printer return line for D+ signal
20-25 -- --not assigned
Pin assignment
D-23
Appendix D: Interface Data
* The functions of the circuit B+ -> B- differ depending on the protocol used. When selecting a protocol the functions are adjusted automatically:
●
●
●
Ready/Busy Protocol: indicates that the printer is not ready to receive data. This type of protocol is also used for error detection.
X-ON/X-OFF Protocol: serial data from printer (the printer only sends the codes DC1 and DC3).
Centronics Blocked Duplex Protocol: serial data from printer (the printer only sends the codes ACK and NAK).
Interface selection
Interface
The selection of different interface modes, the transmission protocol and the number of lines used for the transmission is determined by the arrangement of the five jumpers SP1 to SP5, as shown in the table below, and by the menu settings of the printer.
You select the different modes by setting short-circuit jumper SP2 appropriately. The menu setting of the printer determines whether the Ready/Busy protocol or X-ON or X-OFF protocol is used.
The Centronics Blocked Duplex transmission protocol can only be selected by setting short-circuit jumper SP1 appropriately. The functions of the short-circuit jumpers and the menu settings are listed in the following table.
Functions of short-circuit jumper and protocol selection in printer menu
Protocol Power
Source
Number of
Lines
SP1 SP2 SP3 SP4 SP5 Menu Settings
RS-232C
RS-232C
RS-232C
Ready/Busy
X-ON/X-OFF
CBD *
Current Loop Ready/Busy
Current Loop Ready/Busy
Current Loop Ready/Busy
Current Loop Ready/Busy
Current Loop X-ON/X-OFF
Current Loop X-ON/X-OFF
Current Loop X-ON/X-OFF
Current Loop X-ON/X-OFF
_
_
_ passive passive active active passive passive active active
3
2
4
2
3
2
4
2
_
_
_
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
B
A
A
A
C
B
C
B
C
B
C
B
A
A
A
B
A
A
B
B
A
A
B
A/B A/B
A/B A/B
A/B A/B
A
A
A
B
A
A
A
B
Ready/Busy
X-ON/X-OFF
**
Ready/Busy
Ready/Busy
Ready/Busy
Ready/Busy
X-ON/X-OFF
X-ON/X-OFF
X-ON/X-OFF
X-ON/X-OFF
D-24
Appendix D: Interface Data
Interface Protocol Power
Source
Number of
Lines
SP1 SP2 SP3 SP4 SP5
Current Loop CBD *
Current Loop CBD *
Current Loop CBD * passive passive active
Current Loop CBD *
* CBD = Centronics Blocked Duplex
active
** Protocol setting in menu will not be applied.
2
4
2
3
B
B
B
B
Rearrange the jumpers only when the printer is turned off.
B
B
B
B
B
C
B
C
A
A
B
B
A
A
A
B
The component layout diagram of the printed circuit board for the coresident serial RS-232C/Current Loop interface and the arrangement of the jumpers (SP1 - SP5) is shown in the following figures.
Menu Settings
**
**
**
**
Component layout diagram
SP1/
SP2
SP3
SP4/
SP5
SP 3: Pin Assignment SP1: Protocol Selection SP4: Power Source/
Receive Loop
SP2: RS-232C/Current Loop SP5: Power Source/
Send Loop
D-25
Appendix D: Interface Data
Ready/Busy
Protocol
Transmission Protocols
The following pages explain the transmission procedures of the three different types of protocol.
If the printer is unable to receive data, the current loop for signal B + opens when the 50
µ s following the stop bit of the last character is received.
Timing Diagram
Startbit Stoppbit
0 mA
D+
15-20 mA
B+
0 mA
15-20 mA
50
µ s (max.) Power Loop
Stromschleife offen
Power Loop closed
Stromschleife geschlossen
Block format: any
Error Message: a parity error is displayed as @ (4OH).
Display of Busy Status: the minimum interval during which the printer is unable to receive data is selected in the Busy Time menu.
The interval for the Busy signal can be set to either 200 ms or 1 second.
The printer is not ready to receive data if the capacity of the interface buffer drops below 521 bytes. The printer is ready to receive data again when 512 bytes are free in the printer buffer after 200 ms or 1 s have elapsed. If the memory threshold of 512 bytes is not reached during the busy status of 200 ms or 1 s, the printer only signals its ability to receive data when more than 512 bytes of memory are available.
D-26
Timing diagram
Daten Daten
Schwellenwert der
Anzahl Zeichen
Buffer
512
Busy-Signal
0 mA
15 - 20 mA
Block format: unblocked
Error message: a parity error is displayed as @ (40H).
Display of Busy Status: as soon as the capacity of the interface buffer drops below 512 Byte, the printer sends a DC3 signal to the sender indicating that no data can be received. The signal DC3 is only sent as long as data is sent to the printer (see note).
If after 200 ms or 1 s, 512 bytes or more memory is available, the printer sends the signal DC1 to the sender indicating that it is ready to receive data. The signal DC1 is only sent as soon as 512
Byte or more memory is available. (Select the setting 200 ms or 1 s in the Busy Time menu.)
Timing diagram
Datenempfangs-
Data Receive kreis D+ -> D-
0 mA
15 - 20 mA
Daten
*
Datensende-
Data Send kreis B+ -> B-
0 mA
15 - 20 mA
Daten
* If data is sent while the printer is unable to receive data, the code
DC3 is sent every time data arrives at the printer.
Appendix D: Interface Data
X-ON / X-OFF
Protocol
D-27
Appendix D: Interface Data
Centronics Blocked
Duplex (CBD)
Protocol
Block format: STX + Data + ETX
Data outside a block is ignored.
Error Detection:
A block was transmitted correctly
: after having received an ETX signal an ACK signal is transmitted to the sender confirming that the data was received without any errors.
A block was transmitted incorrectly:
after having received an ETX signal a NAK signal is transmitted to the sender indicating that an error occured during the transmission. On receipt of the NAK signal the block has to be transmitted again.
Display of Busy Status: None
If no error was detected:
Datenempfangskreis D+ -> D-
Datensende-
Data Send kreis B+ -> B-
If an error was detected:
Datenempfangskreis D+ -> D-
Data for Bitmap Graphics
The above mentioned timing diagrams are only valid as long as the printer is in text mode. The start character STX and the stop character ETX are only interpreted as control characters of the CBD transmission protocol in text mode. Please note the following if you want to print bitmap graphics:
D-28
Appendix D: Interface Data
Maximum length of block: 0 to 1 KByte (8 KByte)
The maximum length of a block of data equals the capacity of the interface’s printer buffer. This capacity should not exceed 1 KByte.
If a parity error occurs or if the buffer overflows during the transmission, the block causing the error is ignored, a NAK signal is sent and the block is requested again.
Connections of the Current Loop Interface
Please note that closed loops are created when using a current loop interface in order to connect the sender (host) to the receiver (printer).
Connections with one or more current loops can also be produced.
If only one current loop is used, only the blocked Centronics
Blocked Duplex transmission protocol can be used. When using only one circuit, the receiving and sending circuit of the host and printer must be connected in series. It is therefore not possible to receive print data and send status messages simultaneously. Each current loop has to contain a power source which can be made available by either the host or the printer. Several power sources are not allowed within one loop.
Only example circuits are listed below as it is not possible to show the numerous Current Loop interfaces with the different circuits.
The required printer configuration is explained in detail.
As an example, the connection of the IBM Asynchronous Communication Adapter to the Current Loop interface of the printer is described. With this adapter the operating mode can be set to RS-232C interface or Current Loop interface. For further information about the configuration of this adapter see IBM Personal Computer Techni-
cal Reference Manual, P/N 6936844,.
D-29
Appendix D: Interface Data
Diagram 8
Connection: 4-wire
Power source receive loop: Host
Power source send loop: Host
Host Printer
+ -
+ -
D+ 9
D– 10
SP4
A
B
B+ 18
B– 19
GND 7
SP5
A
B
+
-
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
Diagram 9
Connection: 4-wire / (3-wire)
Power source receive loop: Printer
Power source send loop: Printer
Host Printer
D+ 9
D– 10
SP4
A
B
B+ 18
B– 19
GND 7
SP5
A
B
+
-
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
D-30
Connection: 4-wire
Power source receive loop: Host
Power source send loop: Printer
Host Printer
+ -
D+ 9
D– 10
SP4
A
B
B+ 18
B– 19
GND 7
SP5
A
B
+
-
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
Appendix D: Interface Data
Diagram 10
Connection: 4-wire
Power source receive loop: Printer
Power source send loop: Host
Host Printer
+ -
D+ 9
D– 10
SP4
A
B
B+ 18
B– 19
GND 7
SP5
A
B
+
-
+ -
Assignment of -
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
Diagram 11
D-31
Appendix D: Interface Data
Diagram 12
Connection: 3-wire
Power source receive loop: Printer
Power source send loop: Printer
Host Printer
D+ 9
D– 10
SP4
A
B
B+ 18
B– 19
GND 7
SP5
A
B
+ -
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
Diagram 13
Connection: 2-wire
Power source receive loop: none
Power source send loop: Host
Host Printer
+ -
D+ 9
D– 10
SP4
A
B
SP5
A
B
B+ 18
B– 19
GND 7
+ -
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
In combination with this circuit you can only use the Centronics
Blocked Duplex protocol in order to ensure the correct transmission of data.
D-32
Appendix D: Interface Data
Connection: 2-wire
Power source receive loop: Printer
Power source send loop: None
Host Printer Assignment of
Short-Circuit Jumper
D+ 9
D– 10
SP4
A
B
SP5
A
B
B+ 18
B– 19
GND 7
+ -
+ -
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
In combination with this circuit you can only use the Centronics
Blocked Duplex protocol in order to ensure the correct transmission of data.
Diagram 14
One must differentiate between 2-wire-connections (see diagram 13 and 14) and circuits in which only the receive loop D+ -> D- of the printer is connected. Strictly speaking these are 4-wire circuits (see diagram 8 to 11), in which the send loop B+ -> B- of the printer is not integrated in the circuit. It is therefore not possible to control the printer status (Ready to Receive or Receive Buffer Full).
This circuit is often used by measuring systems and unit controls to which a log printer is connected. Received data is printed immediately without having to store it in the buffer. Even if a low transmission rate is used, no data is lost.
To ensure a constant power supply of 15 mA to 20 mA, the wire resistance as well as the number of electronic components in the current loop has to be considered. This means that the appropriate current control resistors of the power source used have to be adjusted to the prevailing electrical conditions on either the printer or the computer.
The above mentioned procedures should only be carried out by trained technicians referring to the technical documentation (circuit diagrams etc.) of the printer interface and the computer interface.
Technical note
D-33
Appendix D: Interface Data
Examples
Diagram 15
Connection: 2-wire
Power source receive loop: Printer
Power source send loop: None
IBM Asynchronous
Adapter
Printer
SP4
A
B
+
D+ 9
D– 11
D+ 9
D– 10
+ -
SP5
A
B
+ -
B– 25
B+ 18
GND 7
B+ 18
B– 19
GND 7
Assignment of
Short-Circuit Jumper
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
Diagram 16
This connection is equivalent to circuit diagram 10.
Connection: 4-wire
Power source receive loop: Host
Power source send loop: Printer
IBM Asynchronous
Adapter
Printer
SP4
A
B
+
D+ 9
D– 11
D+ 9
D– 10
+ -
B+ 18
B– 25
B+ 18
B– 19
GND 7
SP5
A
B
+ -
Assignment of
Short-Circuit Jumper
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
D-34
Connection: 3-wire
Power source receive loop: Printer
Power source send loop: Printer
IBM Asynchronous
Adapter
Printer
SP4
A
B
+
D+ 9
D– 11
D+ 9
D– 10
+ -
B+ 18
B– 25
B+ 18
B– 19
GND 7
SP5
A
B
+
-
SP1
A B
Ready/Busy, XON/XOFF
SP1
A B
SP2
A B
SP3
A B
SP4
A B
SP5
A B
C
Centronics Blocked Duplex
This connection is equivalent to circuit diagram 12. A circuit according to diagram 13 is not possible with the IBM Asynchronous
Adapter, as the voltage supplied by this adapter’s power source is not sufficient for the interfaces. Please refer to the section »Technical Note« earlier on in this chapter.
You can use the Centronics Blocked Duplex protocol only in combination with above circuit.
Appendix D: Interface Data
Diagram 17
Assignment of
Short-Circuit Jumper
This connection is equivalent to circuit diagram 12.
D-35
Appendix D: Interface Data
Interface Test
Connect the test loop plug described below to the interface in order to perform an interface test.
Select Yes in the Diagnostic Test menu to enable the interface test of the printer.
●
Connect the test loop plug to the connector of the serial interface.
Canon DB-25S or equivalent
Stecker
10
●
Connect short-circuit jumper SP2 to side B and SP3 to side B to select the Current
Loop operating mode. Plug
SP4 into side B and SP5 into side A to activate the interface connection with two transmission lines and a power source on the printer side. This circuit is equivalent to diagram 14.
D-
B+
B-
SG
(Current Loop)
18
19
7
●
Turn the printer on. The printer buffer, interface driver and receive loop functions on the serial interface are now tested. On completion of this test all characters are printed in a test pattern.
The result is printed as follows:
The message
CORESIDENT SERIAL I/F F/W xx.xx YR4064-
1578 LOOP TEST
will be printed, where xx.xx is replaced by the current ROM version.
The printer checks the buffer and prints
RAM = GOOD
, if no error occurred or
RAM = BAD
, if an error occurred during the memory test.
The signal logic is also tested. The message
CURRENT LOOP I/F =
GOOD
is printed if no error was detected. If an error occurred, the message
CURRENT LOOP I/F = BAD
is printed.
Contact your local dealer, if the message
CURRENT LOOP I/F =
BAD
is printed.
D-36
Appendix D: Interface Data
From the printer’s send loop, hexadecimal characters from 20H to
7FH are transmitted into the receive loop. These characters are stored in the buffer and printed.
This process is repeated until the printer is turned off. The printer returns to normal operation when you set the Diagnostic Test menu option to No.
To set the printer to menu mode while the Diagnostic Test option is set to Yes, hold the menu key down while switching the printer on.
D-37
Appendix E: Paper formats and print areas
Appendix E: Paper formats and print areas
Continuous Paper
Continuous paper must be punched and folded to sheet length (a).
You can use up to four layers of paper (including the original when using duplicating paper).
b c a e d print area a = 76,2 to 431,8 mm b = 76,2 to 254 mm /
76,2 to 406,4 mm c = printable width d = 16,9 mm e = 12,7 mm f = 6,35 mm g = 6,35 to 22,2 mm h = 12,7 mm d f g h
●
The width (b) must be between 76.2 and 254 mm for small printers and between 76.2 and 406.4 mm for large printers.
●
You can use paper lengths between 76.2 and 431.8 mm.
●
Do not print within 8.9 mm (corresponding to four lines at six lpi) before and after a perforation in order to avoid printing on the perforation.
●
For (g) you can select a distance of 6.35 to 22.2 mm to the transportation holes by moving the spiked cylinders. Paper with binding holes must not be printed on the left of these holes.
Format
E-1
Appendix E: Paper formats and print areas
Weight
Paper Thickness
Perforation
●
When using single-layer paper the respective first character can be printed at a distance of 6.35 mm to the transportation holes.
To avoid printing on the perforation maintain a distance of
12.7 mm to the perforation.
●
When using multiple-layer paper do not print within 12.7 mm of the transportation holes to avoid an impairment of the print quality by glued surfaces.
Continuous paper without duplicate
The weight must be between 45 and 90 g/m
2
, the paper thickness must not exceed 0.36 mm.
Multiple sets, automatically duplicating
Multiple sets, automatically duplicating, print-sensitive or duplicating paper with a weight between 34 and 41 g/m
2
can be used.
Multiple sets with carbon
The weight must be between 38 and 45 g/m
2
. The paper thickness must not exceed 0.36 mm. A carbon paper must have a maximum thickness of 0.03 mm
When using duplicating paper one original and up to 3 duplicates can be produced.
The paper thickness depends on the feeding direction of the paper.
The paper thickness must not exceed a total of 0.36 mm, if the paper is fed from the reverse side of the printer. If the paper is fed from the bottom side of the printer the thickness must not exceed 0.44 mm.
Labels for OCR-readers are an exception.
●
A perforation must withstand the fast transportation speed and must be easily separable.
●
The bridges of a perforation must be firmly joined and not be separated at any point. Please note that a separated perforation tears easily.
E-2
Appendix E: Paper formats and print areas d a = 19,5 mm b = 6,35 mm c = 50,8 mm d = 3 to 4 mm a c b b
Horizontal Perforation
Within a range of 1 to 2 mm there must not be any hole at the top or lower edge of the paper.
Vertical Perforation
If a vertical perforation is within the print area adjust the printer so that you do not print 6.35 mm to the left and right of the perforation
(b). Avoid holes at the intersection of vertical and horizontal perforation.
E-3
Appendix E: Paper formats and print areas
Further information
●
The transportation holes must be exactly round and precisely punched. The rim may be toothed.
●
The paper must be folded alternately along the horizontal perforation. Do not use paper lying in loops because problems with the paper feed may occur. Also avoid waves and wrinkles
(mainly occurring with the first and last sheets of a new paper stack). Do not use these sheets.
●
If the continuous paper is separated along the horizontal perforation, the separation rim must be straight, i.e. separation rims and corners must not be wavy or wrinkled.
Cut sheets
The standard paper format is DIN A4 (210 x 297 mm). Other paper formats (DIN A5, DIN B5, etc.) can also be used.
g d h e a = 88,9 to 216 mm /
88,9 to 363 mm b = 76 to 420 mm c = printable length d = printable width e = min. 6,35 mm f = min. 4,35 mm g = 6,35 to 28,6 mm h = min. 6,35 mm b c print area
Format
f a
●
The paper width (a) is between 88.9 and 216 mm (small printer) and between 88.9 and 363 mm (large printer).
●
The paper length (b) is 76 to 420 mm.
●
The measurements for the non-printable area (g/h) are between
6.35 and 28.6 mm. For paper with a width of 304.8 mm the size must be between 19.05 and 28.6 mm.
E-4
Appendix E: Paper formats and print areas
When using a cut sheet feeder (CSF), the cut sheet formats are different:
●
The paper width (a) is between 182 and 216 mm (small printer) and between 182 and 364 mm (large printer).
●
The paper length (b) is between 182 and 356 mm (small printer) and between 182 and 364 mm (large printer).
You can use paper weights between 45 and 90 g/m
2
. When using cut sheets via the cut sheet feeder (CSF), the paper weight must not be less than 60 g/m
2
and must not exceed 90 g/m
2
.
Weight
Labels (on single sheets)
g d e h b c print area a = 88,9 to 216 mm /
88,9 to 363 mm b = 76 to 420 mm c = printable length d = printable width e = min. 6,35 mm f = min. 4,35 mm g = 6,35 to 28,6 mm h = min. 6,35 mm f a
●
The paper width (a) is between 88.9 and 216 mm (small printer) and between 88.9 and 363 mm (large printer).
●
The paper length (b) is between 76 and 420 mm.
●
The non-printable left margin is between 6.35 and 28.6 mm. For paper with a width of 304.8 mm the size must be between 19.05
and 28.6 mm.
Format
E-5
Appendix E: Paper formats and print areas
Weight
Further information
The support paper for labels can be processed with a weight of 33 to
41 g/m
2
. The overall thickness of 0.28 mm however must not be exceeded.
The condition of the support paper must ensure that the label is not removed when the paper is turned about 180
°
around a cylinder with a diameter of 27 mm. The labels must not detach during the process of printing or paper feeding. The support paper must be as bendable as possible. No labels should be removed from the support paper. A label must not have wrinkles or waves in the feed direction.
Labels (on continuous paper)
Labels on continuous paper must only be fed from the bottom side of the printer (with additional transportation unit for continuous paper).
b b d a = min. 6,35 mm b = min. 2,54 mm c = min. 2 mm d = min. 6,35 mm e = 12,7 mm f = min. 6,35 mm r = label corners must be rounded off a e print area print area c c r f
E-6
Appendix E: Paper formats and print areas
●
The width of the label paper must be between 76.2 and 254 mm
(small printer) and between 76.2 and 406.4 mm (large printer).
●
You can use paper lengths between 76.2 and 431.8 mm.
●
Do not print within 8.9 mm (corresponds to 5 lines at 6 lpi) before and after a perforation to avoid printing on the perforation.
Format
The support paper of the labels can be processed with a weight of 33 to 41 g/m
2
. The overall thickness of 0.28 mm must not be exceeded.
Weight
●
The condition of the support paper must ensure that the label is not removed if the paper is turned about 180
°
around a cylinder with a diameter of 27 mm.
●
The labels must not detach during the process of printing or paper feeding.
●
The support paper must be as bendable as possible.
●
No labels should be removed from the paper.
●
A label must not have wrinkles or waves in the feed direction.
●
The corners of the labels must be rounded off.
●
A hole in the label corresponding to the horizontal perforation of the paper must be identical with the perforation. Holes must not appear within a range of 1 to 2 mm from both edges.
●
There should not be any holes within 0.5 to 1 mm length from the upper right or left edge.
Further information
E-7
Appendix F: Index / Glossary
Appendix F: Index / Glossary
●
●
BOLD BLOCK CAPITALS
represent the display lamps of the control panel.
Bold letters
indicate the groups, positions and settings of the printer menu.
●
●
BLOCK CAPITALS indicate the mode of the printer.
Italic BLOCK CAPITALS indicate the buttons of the control panel.
A
Accessories
Activate menu mode
Adjusting print head gap
Advice symbols
Agency Approvals
ALARM
Assembling the printer
Available fonts, test
B
Bar codes
- examples
- positioning
- print position
BOLD
Bottom Feed
Bottom tractor feed,
- general
- different paper formats
- installation feed
- installation feet
- paper feed
Button functions, menu mode
Button functions, ON -/OFF LINE mode
Buttons
C
Centronics Interface
Changing,
- print position
- Tear Off position
- the menu settings
- the ribbon cassette
CHARACTER PITCH
Characters and control characters
Cleaning the printer
I, 7-1
4-1
3-3
XVII
A-5
2-4, 8-1
1-1, 1-2
8-8
2-3, D-1
7-12
3-14, 7-12
3-16
4-2
6-1
2-7
5-3
6-3
7-18
7-24
7-20
7-18
7-22
2-7
2-5
2-5
C-1
C-17
C-2
C-20
2-7
4-10
C
Code pages, overview
Connecting the printer to power supply
Connecting the printer to the computer
Consumables
Continuous ASCII test
Continuous paper,
- feed
- format
- perforation
- print area
- weight
Conversion table
Coresident RS-232C, technical data
Coresident RS-232C/Current Loop Interface
COURIER
Current Loop Interface,
- general
- connections
- pin assignment
- test
- transmission protocol
Cut sheet feeder,
- automatic paper feed
- feed rail
- installation
- manual paper feed
- mounting bracket
- paper feed
- paper tray
- printing area
Cut sheet,
- paper feet
- format
- print area
- weight
B-1
1-10
1-9
XVIII, 6-1
8-7
D-22
D-29
D-23
D-36
D-26
3-7
E-4
E-4
E-5
3-8
E-1
E-2
E-1
E-2
B-2
D-22
D-22
2-7
7-8
7-2
7-5
7-9
7-11
7-7
7-10
7-10
F-1
Appendix F: Index / Glossary
D
Damage, transportation
Dimensions, printer
Downloadable characters, Epson
E
Electrical characteristics
Emulation
End menu mode
Environmental conditions
Epson commands,
- ESC/P2 commands
- Bit image graphics
- Character Sets
- Control code tables
- Cut Sheet Feeder
- Downloadable characters
- High resolution graphics
- Line spacing
- Low resolution graphics
- Multifunction commands
- Other commands
- Page formatting
- Paper feed
- Positioning
- Print alignment
- Print attributes
- Print modes
- Print quality
- Raster graphics
- Standard functions
- Tabulators
Explanation of menu items
F
Fault tables
Feed rail, adjusting
Feed rail, installing
Feeding continuous paper from the bottom
Feeding continuous paper from the rear
FF/LOAD
Fitting the interference filter
Fitting the paper separator
Fitting the paper support
Font
FORM TEAR OFF function
From continuous paper to cut sheets
From cut sheets to continuous paper
Front view
XIX
A-4
15-12
A-4
1-11, 5-1
4-3
A-4
14-27, 15-17
15-1
14-20, 17-1
16-1
14-19
15-12
15-4
14-17
15-8
14-8
14-22
14-15
14-18
14-12
15-11
14-6
14-2
14-1
15-17
14-1
14-9
4-9
1-8
1-5
4-9
3-15
3-12
3-12
2-1
8-4
7-2
7-3
3-11
3-8
2-6
1-10
G
GOTHIC
Graphics, Epson
Graphics, IBM
GROUP
Guidance through the manual
H
Hex dump test
High resolution graphics, Epson
High resolution graphics, IBM
I
IBM commands,
- Aspect ratio
- Bit image graphics
- Character Sets
- Control code tables
- Cut Sheet Feeder
- High resolution graphics
- Line spacing
- Low resolution graphics
- Multifunction commands
- Other commands
- Page formatting
- Paper feed
- Positioning
- Print alignment
- Print attributes
- Print modes
- Print quality
- Standard functions
- Tabulators
Indicating print position
Indicator lamps
Inserting a new ribbon cassette
Inserting the ribbon cassette
Inside view
Interface cards
Interface cards, installation
Interface data
Interference filter
ITEM
F-2
APPEND_F.PM6
2 30.01.1997, 14:29 Uhr
2-7
15-1, 15-17
11-1
4-2
IV
8-8
15-4
11-4
11-10
11-1
10-21, 13-1
12-1
10-20
11-4
10-16
11-8
10-7
10-26
10-13
10-18
10-12
11-14
10-6
10-3
10-1
10-1
10-10
3-14
2-4
6-2
1-4
2-2
7-28
7-28
D-1
1-1, 1-9
4-2
L
Labels (on continuous paper)
Labels (on single sheet)
Legal note
LF
Location
LQ
M
Machine-readable fonts
Maintenance
Major faults
MENU
Menu mode
Menu settings
Micro Feed Down/Up
Mounting bracket, cut sheet feeder
N
Noise level
Notes on paper types
O
OFF LINE
ON LINE
Operator panel
Options
Overview default menu items
P
Packing the printer for transportation
Paper,
- feed, specifications
- feed: continuous paper
- feed: cut sheets
- formats
- handling
Paper jam
Paper lever
PAPER PARK function
Paper separator
Paper support
Parallel I/F
Parallel Interface,
- general
- pin description
- signal level
Appendix F: Index / Glossary
XVIII
XVI
8-6
2-4, 4-1
4-1
4-1
2-5
7-11
2-5
2-5
2-1, 2-4
A-5
4-4
E-6
E-5
III
2-6
1-2
2-7
A-4
3-1
9-1
A-2, A-3
3-8
3-7
E-1
3-1
8-2
2-3, 3-2
3-11
1-7, 2-2
1-1, 1-5, 2-1
4-14
D-1
D-2
D-3
P
- test
- timing
PARK
Platen
Platen knob
Possible faults
POWER
Power cable
Power socket
Power supply
Power switch
PRESTIGE
Print areas
Print characteristics
Print functions
Print head
Print head lever
Print menu settings
Print position, bar codes
PRINT QUALITY
Printer Control
Printer,
- components
- cover
- drivers
- menu settings
- assembling
- dimensions
- setting up
- unpacking
Printing a 24 pin bar code
Printing under DOS
PROP
Pull tractor feed
- general
- installation
- paper feed
- removing tractor feed
- sprocket paper feed
Q
QUIET
2-6
2-1
2-1
1-11, 5-1
4-1
1-1, 1-2
A-4
1-1, 1-3
1-1
C-8
5-3, 5-5
2-7
7-12
7-13
7-15
7-17
7-16
D-5
D-4
2-6
2-2
1-1, 2-1
8-1
2-4
1-1, 1-10
2-3
1-2
1-10, 2-3
2-7
E-1
A-1
2-7
2-2
3-2
4-1
C-20
2-7
4-9
F-3
Appendix F: Index / Glossary
R
Raising the paper support
Rear Feed
Rear view
Reliability
Remove transport packing
Removing paper separator
Removing the paper support
RESET
Responsibility for transportation
Ribbon cassette
Ribbon cassette, inserting
Roll paper stand
- general
- installation
- paper feed
RS-232C Interface
- general
- pin assignment
- signal level
- test
- wiring
RS-422A Interface
- general
- connections
- menu options
- pin assignment
- signal level
- test
- transmission protocols
S
Safety advice
SEL
SEL
Selecting the Bar code
Serial I/F
Serial interface
Serial Interface, RS-232C
Serial Interface, RS-422A
Servicing
SET
Set-Up
Setting Top Of Form
Setting up the printer
SHIFT
Short reference
Socket panel
Switching between paper formats
Symbol Sets
F-4
3-13
1-1, 1-3
2-5
H-1
2-3
3-11
4-9
XV
2-4
2-5
C-3
4-14
2-3
D-5
D-11
XVI
4-2
4-11
7-25
7-25
7-26
D-5
D-6
D-7
D-10
D-8
1-6
4-10
2-3
A-5
1-3
1-8
1-7
2-8
XIX
1-1, 2-2
1-4, 6-2
D-15
D-15
D-14
D-12
D-13
D-21
D-15
T
Table of contents
TEAR
Tear Off edge
Technical data
Testing options
Text styles
TOF
TOF function
Top Feed
Trademarks
Troubleshooting
Type and size of bar code
U
Unpacking the printer
UTILITY
W
Warning symbols
Working noise
1-1
2-7
XVII
A-4
VIII
2-6
3-15
A-1
8-7
XVIII
2-6
3-13
4-10
G-1
8-1
C-3
Appendix F: Index / Glossary
Glossary
Most terms are also explained in the context of the different sections. You will find these explanations via the index.
ASCII Character Set
(American Standard
C
ode for Information Interchange)
A standardized code for the character representation in computers which comprises as a
7-bit character set including 128 letters, figures, special characters and control characters.
Bit
The smallest information unit in data processing. It can have the value 0 or 1. Eight bits are combined to one byte. One byte can represent 256 different values.
Backspace (BS)
The print head is moved one character position to the left.
Bit Map
A bit map is made up of single dots which can be black or white. Bit maps are transmitted line-by-line (9 or 24 dot lines each) to the printer. Its resolution is decisive for the smallest dot size.
Bar Code
A small area with bars of different widths containing coded information. A bar code is grasped with optical readers. Depending on the printer type a bar code is part of the included fonts or can be printed as graphics.
Boldface
Characters are printed twice to emphasize them. The second printed dot is slightly shifted to the right.
Baud Rate
The speed of serial interfaces is given in steps per seconds, the unit is one baud. Common interfaces transmit exactly one bit per step.
In this case the step speed corresponds to the data transmission rate (having the unit »bits per second«, bps).
BS
See »Backspace«.
Buffer
A buffer is a memory area which is reserved
(mostly temporarily). Apart from resident buffers there are variable (dynamic) buffers.
Their size is automatically adapted to the requirements.
Bidirectional Print
In the first line the print head moves from the left to the right, in the second line the direction is vice versa. This increases the print speed.
Byte
A group of 8 bits combines to one byte from which can represent a character or graphic data. A byte can have a value between 0 and
255.
F-5
Appendix F: Index / Glossary
Carriage Return (CR)
The print head is returned to the beginning of the line. Mostly the carriage return is combined with a line feed to move the print head to the next line.
Centronics Interface
This interface is mainly used to connect computers and printers. The Centronics interface is a parallel interface. The eight bits of one byte are transmitted simultaneously via eight data lines. Other signal lines control the data transmission (handshake).
Continuous Paper
For the printing of lists, labels or duplicates mostly continuous paper is used which is taken from the stack (folded in Z-shape).
Continuous paper is transported via the spikes of the transportation unit which locks into the lateral holes of the paper.
Control Characters
These non-printable characters of the ASCII character set activate functions such as form feed, line feed or carriage return. The command »Escape« activates command sequences (Escape commands).
Character
A character is an element from a defined character set. Printable and non-printable characters (control commands) are distinguished.
Character Set / Code Page
In a character set (= all representable characters) it is determined which characters (letters, figures, special characters) are available.
cpi (characters per inch)
The pitch for non-proportional fonts is stated in characters per inch.
cps (characters per second)
The printing speed is measured in characters per second.
Character Spacing
Fonts with set character spacing and proportional fonts are distinguished.
Colour Ribbon
The colour ribbon is a continuous strip of inked fabric which is re-inked within the cartridge. By the stroke of the needle the ink is transmitted to the paper. See also »dot matrix printer«.
Compatibility
Compatibility is the »harmony« of different systems with each other. Compatible systems ensure an easy exchange of programs or devices without major modifications.
CR
See »Carriage Return«.
CSF
See »Cut Sheet Feeder«.
Cut Sheet
Cut sheets are fed between the platen and different transport rollers.
Cut Sheet Feeder (CSF)
By means of a cut sheet feeder the printer can process a stack of cut sheets without having to re-feed every single sheet. Cut sheet feeders with two feeding devices are also available.
F-6
Appendix F: Index / Glossary
Decimal
A term for a digit of the decimal system
(based on the number 10).
DIP Switch (D
ual Inline Package)
A DIP switch is an electronic component, often a series of small switches. It serves to preset the printer.
Emulation
Emulation means that the functions of a device are imitated, for example the printer functions of the IBM ProPrinter. In general, your dot matrix printer offers additional commands and printer functions apart from the given options which can be made available by selecting the correct printer driver.
Dot
The smallest addressable unit in bit maps.
One bit is assigned to every dot. The bit can have the value 1 for black (set dot) or 0 for white (non-set dot).
Epson Emulation
In the selected emulation the printer imitates the chosen printer type and performs the print commands of an Epson LQ printer (24 needles), for example.
Dot Matrix Printer
The print characters are made up of dots (dot matrix). The needles strike the colour ribbon onto the paper and produce a dot. Depending on the number of pins 9-, 18- and 24-pin printers are distinguished. The needles are arranged in one or two columns. Common needle diameters are 0.3 mm for 9-pin printers and 0.2 mm for 24-pin printers The resolution depends on the needle size, it defines the typeface.
Escape (ESC)
Escape is a non-printable control character of the ASCII character set (decimal 27, hexadecimal 18). Most print commands are initiated by the Escape-character.
FF
See »Form Feed«.
dpi (dots per inch)
The graphic resolution is given in dots per inch. Usual resolutions for needle printers are between 60 and 288 dpi.
Driver
See »Printer Driver«.
Font
A font is defined by the combination of different characteristics such as print quality or character spacing.
Form Feed (FF)
This printer command terminates one page and outputs it. By pressing the FF-key a form feed can be performed manually.
Duplicates
With print-sensitive paper or duplicating paper with carbon duplicates (copies) can be made, because the printing is performed by stroke. Three duplicates for 24-pin printers and four duplicates for 9-pin printers are common.
Hexadecimal
A term for a digit of the hexadecimal system
(with a base of 16). The figures 0 to 9 and additionally the letters A to F (for the numbers
10 to 15) are used.
F-7
Appendix F: Index / Glossary
IBM Emulation
In the selected emulation the printer imitates the chosen printer type and can perform the print commands of the IBM ProPrinter, for example.
Impact Printer
A printer which transmits the characters to the paper by mechanical strokes. See also
»dot matrix printer«.
Line
A line is a horizontal sequence of characters.
The width of a line is defined by the right and the left margin (beginning of the line).
The line spacing (lpi, lines per inch) determines the height of a line.
Inch
One inch is equivalent to 2.54 centimetres.
Technical data (resolution, for example) is given in inches.
Interface
An interface is a connection between computer and printer to perform the data exchange.
Interfaces can be parallel or serial: parallel interfaces (Centronics) transmit data simultaneously byte-by-byte. Serial interfaces transmit data successively bit-by-bit.
Line Feed (LF)
This printer command transports the paper one line ahead. By pressing the LF-key a line feed can be performed manually. Most times a carriage return is also performed to move the print head to the beginning of the line.
Line Spacing
Common line spacing for the print of characters are 6 and 8 lines per inch (lpi). When printing graphics the selected line spacing must ensure that the lower needles adjoin the upper needles of the next line.
lpi (lines per inch)
The vertical distance of the print lines is given in lines per inch. Common values are 6 or
8 lpi.
Italics
A type style with characters that slant upwards to the right.
KByte
1024 bytes are one kilobyte.
Landscape
The paper is printed parallel to the longitudinal edge.
Letter Quality (LQ)
This font is only available for 24-pin printers because it requires a high resolution of the characters due to small needle diameters. By additional dots between the character matrix a uniform typeface is achieved. The print speed is reduced.
Main Internal Storage (Random Access
Memory, RAM)
In this write-read memory (random access memory) the data received is stored and prepared for line-by-line printout. Depending on the type the printer memory can be enlarged with additional modules and therefore relieve the computer. The contents of the
RAM are lost, when the printer is switched off.
Matrix Printer
The characters are made up of a matrix of single dots. See »dot matrix printer«.
F-8
Appendix F: Index / Glossary
MByte
1024 bytes are one megabyte.
Memory
See »Main Internal Storage/RAM«.
Parameter
Most commands require additional variables which are mainly figures. These parameters are given either as printable ASCII characters or as decimal or hexadecimal figures.
Menu
By means of the menu you may select most of the functions of your printer such as paper format and emulation. The menu is selected via the operating screen.
Pitch
See »cpi«.
Platen
The platen transports the paper and acts up as a pad for the stroke of the needles. See also
»dot matrix printer«.
Near Letter Quality (NLQ)
This font is available for most 9-pin printers, but it does not reach the print quality of letter quality.
Port
A port is an interface of the computer or printer to exchange data.
OCR (Optical Character Recognition)
The OCR-code consists of exactly defined characters which can be read by every OCRdevice.
Printer Driver
A printer driver is a kind of »translator« to convert the text and graphic commands of a software program into a language understandable for the printer.
Off-line
In this state the printer no longer receives data and is on stand-by. In the off-line mode you can modify the menu setting.
Print Head
The print head comprises the needles which strike the ribbon onto the paper. See also
»dot matrix printer«.
On-line
In this operating state data can be received, processed, and printed.
Parallel Interface
Connection element to transmit data between printer and computer. In a parallel interface the eight bits of one byte are transmitted simultaneously via eight data lines. Other signal lines control the data transmission
(handshake).
Program
The operating system controls the basic functions of the computer such as input, output, and system administration. Word processors, spreadsheets or graphic programs can be operated by means of application programs.
Proportional Font
Each character occupies solely the space of its actual width. »l« requires less space than
»m«, for instance. By using proportional fonts documents get a font-like, professional look. See also »set character spacing«.
F-9
Appendix F: Index / Glossary
Protocol, Handshake
A protocol secures the data transmission.
Depending on the interface the printer outputs a message by control characters or separate signal lines that the receiving memory is full and is able to ensure a correct data reception and transmission.
Random Access Memory (RAM)
See »Main Internal Storage«.
Serial Interface
A connection for data transmission (successively bit-by-bit) between printer and computer. Serial interfaces are suited for longer distances. See also »RS-232C«.
Set Character Spacing
Similar to typewriter fonts every character occupies the same space regardless of its actual width. See also proportional fonts. The character spacing is given in characters per inch (cpi).
Reset
Systems (computer, printer) are returned to their initial state.
Resident
A term used in data processing with respect to contents of the RAM.
Resolution
The resolution of the print depends on the pin diameter of the print head. The resolution is mostly measured in dots per inch (dpi).
For graphics the resolution varies from 72 dpi (9-pin printer) up to 300 dpi (24-pin printer).
Shift-Key
By pressing this key a second key function is activated.
Transportation Unit
It transports continuous paper safely and exactly. The spikes of the transport rollers grip the punched holes of the paper to push it or pull it.
For pushing, the transportation unit feeds the continuous paper from the reverse or bottom side through the printing mechanism.
For pulling, the transportation unit pulls the paper from the top side from the printing mechanism.
ROM (Read-Only Memory)
In this read-only memory which cannot be changed the firmware - the control program of the printer - is stored (emulation and control of the printing mechanism).
RS-232C Interface
A serial interface according to an American standard. It corresponds to the international
ITU standard V.24 in conjunction with V.28
and German standard DIN 66020.
Unidirectional Print
The printer prints only in one direction (from the left to the right). Especially suited for the precise print of graphics.
F-10
Appendix G: Trademarks
OKI and Microline are registered trademarks of Oki Electric Industry
Co., Ltd.
Epson is a registered trademark of Seiko Epson Corporation.
IBM, IBM PC, PC-DOS and ProPrinter are registered trademarks of
International Business Machines Corporation.
MS-DOS and MS-Windows are registered trademark of Microsoft
Corporation.
DR-DOS is a registered trademark of Novell Inc.
Telix is a registered trademark of EXIS Inc.
ProCOM is a registered trademark of DATASTROM TECHNOLO-
GIES Inc.
Centronics is a registered trademark of Centronics Corporation.
Siemens and High Print are registered trademarks of Siemens
Nixdorf Informationssysteme AG.
Appendix G: Trademarks
G-1
Appendix H: Short reference
Appendix H: Short reference
Test (available fonts)
Test (ASCII-sample)
Hex dump mode
Reset printer menu
Reset top of form
Reset printer menu and top of form
SEL
MENU
SEL
MENU
PARK
FF/LOAD
Micro Feed
Up
POWER
LF
Micro Feed
Down
+
ON
POWER
QUIET
TOF
+
ON
POWER
FF/LOAD
Micro Feed
Up
+
ON
LF
Micro Feed
Down
+
ON
POWER
POWER
QUIET
TOF
+
ON
POWER
TEAR
+
ON
SEL
Print mode ( )
Line Feed
Form Feed / Load paper
LF
Micro Feed
Down
FF/LOAD
Micro Feed
Up
H-1
Appendix H: Short reference
SEL
Print mode ( )
Form tear off
Park position, sprocket paper
Activate/Deactivate Quiet mode
Activate Menu mode
SEL
Menu mode ( )
MENU
Activate Menu mode
Print all menu items
Select menu group
Select previous menu group
Select menu item
H-2
TEAR
PARK
QUIET
TOF
SHIFT
SEL
MENU
SHIFT
SEL
MENU
PARK
LF
Micro Feed
Down
GROUP
SHIFT
LF
Micro Feed
Down
GROUP
FF/LOAD
Micro Feed
Up
ITEM
Previous item of a menu group
Select menu value (set)
Previous value of a menu group
Save and exit menu mode
SEL
Top Of Form ( )
Micro feed down
Micro feed up
Save Top Of Form
Reset Top Of Form to default
TEAR
SET
SHIFT
SHIFT
Appendix H: Short reference
FF/LOAD
Micro Feed
Up
ITEM
SHIFT
TEAR
SET
SEL
MENU
EXIT
SHIFT
SHIFT
LF
Micro Feed
Down
FF/LOAD
Micro Feed
Up
QUIET
TOF SHIFT
PARK
+
QUIET
TOF
ON
POWER
H-3
Appendix H: Short reference
SEL
Print position ( )
Indicate print position
Set print position to the left
Set print position to the right
SHIFT
PRINT QUALITY
SHIFT
TEAR
SHIFT
PARK
SHIFT
H-4
Declaration of Conformity/CE
Z-1
Declaration of Conformity/CE
Z-2
OKI Europe Ltd.
Central House
Balfour Road, Hounslow
Middlesex TW3 1HY
United Kingdom
Tel: + 44 (0) 181 219 2190
Fax: + 44 (0) 181 219 2199
OKI Systems (Deutschland) GmbH
Hansaallee 187
40549 Düsseldorf
Tel: + 49 (0) 211 5266-0
Fax: + 49 (0) 211 593345
BBS: + 49 (0) 211 596896 (ISDN, X.75)
+ 49 (0) 211 5266-222 (analog)
300-28800 bps, 8, N, 1
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Internet: http://www.oki-osd.com
OKI Systems (UK) Ltd.
550 Dundee Road
Slough Trading Estate
Berkshire SL1 4LE
United Kingdom
Tel: + 44 (0) 1753 819819
Fax: + 44 (0) 1753 819899
OKI Systems (Ireland) Ltd.
The Square Industrial Complex
Tallaght,
Dublin 24
Ireland
Tel: + 353 (0) 1 459 8666
Fax: + 353 (0) 1 459 8840
OKI Systems (Belgium)
Leuvensesteenweg 542 bus 22
1930 Zaventem
Belgium
Tel: + 32 (2) 7160 550
Fax: + 32 (2) 7253 628
OKI Systems (Holland) b.v.
Kruisweg 765 Postbus 690,
2132 NG (2130 AR)
Hoofddorp
The Netherlands
Tel: + 31 (0) 20 6531531
Fax: + 31 (0) 20 6531301
OKI Systèmes (France) S.A.
40-50, Av. Général de Gaulle
94240 L´Haÿ les Roses
France
Tel: + 33 1 46158000
Fax: + 33 1 41240040
OKI Systems (Italia) S.p.A.
Centro Commerciale “Il Girasole”
Palazzo Cellini - Lotto 3.05/B
20084 Lacchiarella (Milano)
Italy
Tel: + 39 (0) 2 90076410
Fax: + 39 (0) 2 9007549
OKI Systems (España)
C/Goya 9
Madrid 28001
Spain
Tel: + 34 (1) 5777336
Fax: + 34 (1) 5762420
OKI Systems (Norway) A/S
Hvamsvingen 9
PO Box 174
2013 Skjetten
Norway
Tel: + 47 (0) 638 93600
Fax: + 47 (0) 638 93601
OKI Systems (Sweden) AB
Stormbyvägen 2-4
PO Box 131,
163 55 Spånga
Sweden
Tel: + 46 (0) 8 7955880
Fax: + 46 (0) 8 7956527
OKI Systems (Danmark) a.s.
Parkalle 382
2625 Vallensbæk
Denmark
Tel: + 45 (0) 43 666500
Fax: + 45 (0) 43 666590
OKI Europe Ltd.
Branch Office (Prague)
IBC, Pobrezni 3
186 00 Praha 8
Czech Republic
Tel: + 42 (2) 2326641, ˜ 42
Fax: + 42 (2) 2326621
OKI Europe Ltd.
Branch Office (Poland)
UL Grzybowska 80-82
00840 Warsaw
Poland
Tel: + 48 (2) 6615407
Fax: + 48 (2) 6615451
OKI Europe Ltd. Hungary
International Trade Center
H1051 Budapest
Bajcsy-Zsilinszky út 12
Hungary
Tel: + 36 1 266 6225
Fax: + 36 1 266 0152
People to People Technology
Oki Data Corporation
4-11-22, Shibaura, Minato-ku,
Tokyo 108, Japan
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