BIXOLON 352plusA Printer User Manual

Service Manual
SRP-350/352plusA&C
Thermal Printer
Rev. 2.01
http://www.samsungminiprinters.com
SRP-350/352plusA&C
■ Table of Contents
1. Precaution Segment .................................................................................................................................... 4
1-1 Safety Precautions................................................................................................................................... 4
1-2 Servicing Precaution................................................................................................................................ 5
1-3 Precaution for Electrostatically Sensitive Devices (ESDs) ...................................................................... 6
1-4 Operational Precautions .......................................................................................................................... 6
2. Installation and Operation .......................................................................................................................... 7
2-1 Installation................................................................................................................................................ 7
2-1-1 AC Adapter Installation ..................................................................................................................... 7
2-1-2 Interface Cable Installation ............................................................................................................... 7
2-1-3 Cash Drawer Cable Installation ........................................................................................................ 7
2-1-4 Paper Roll Installation ....................................................................................................................... 7
2-1-5 Wall Mount Installation...................................................................................................................... 8
2-2 Operation ............................................................................................................................................... 10
2-2-1 Setting the DIP switches ................................................................................................................. 10
2-2-2 Setting the DIP switch (RS-232C Serial Interface) ......................................................................... 10
2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface) ........................................................... 11
2-2-4 Hexadecimal Dumping.................................................................................................................... 12
2-2-5 The self Test Mode ......................................................................................................................... 12
2-2-6 Setting the Memory Switches ......................................................................................................... 14
3. Product Specifications.............................................................................................................................. 16
3-1 Appearance............................................................................................................................................ 16
3-1-1 Printer Dimensions (mm) ................................................................................................................ 16
3-1-2 AC Adapter Dimensions (mm) ........................................................................................................ 16
3-1-3 Feature Locations-SRP-350/352plusA/C TYPE .............................................................................17
3-2 General Specifications........................................................................................................................... 18
3-3 Thermal Printer Specifications............................................................................................................... 19
3-3-1 Printer Specification ........................................................................................................................ 19
3-3-2 Character Specification................................................................................................................... 19
3-3-3 Paper Specification ......................................................................................................................... 20
3-3-4 Reliability and Environment Specification....................................................................................... 20
3-3-5 Printable Area ................................................................................................................................. 21
3-3-6 TPH (Thermal Printer Head) Specification ..................................................................................... 21
3-3-7 Other Component Specification ...................................................................................................... 22
3-4 SMPS Specifications ............................................................................................................................. 23
3-4-1 SMPS (Switching Mode Power Supply) Specification .................................................................... 23
3-4-2 SMPS Output Connector ................................................................................................................ 23
3-5 Interface Specifications.......................................................................................................................... 24
3-5-1 RS-232C Serial Interface ................................................................................................................ 24
3-5-2 IEEE1284 Parallel Interface............................................................................................................ 26
3-5-3 USB2.0 Interface............................................................................................................................. 28
3-6 Cash Drawer Specifications................................................................................................................... 31
3-6-1 Drawer Cable .................................................................................................................................. 31
3-6-2 Cable Connection ........................................................................................................................... 31
Rev. 2.01
-2-
SRP-350/352plusA&C
4. Hardware .................................................................................................................................................... 32
4-1 Wiring Diagram ...................................................................................................................................... 32
4-2 Block Diagram........................................................................................................................................ 33
4-3 Special Circuit Descriptions ................................................................................................................... 34
4-3-1 Power Circuit................................................................................................................................... 34
4-3-2 RESET Circuit ................................................................................................................................. 35
4-3-3 Buzzer and Cash Drawer Circuits................................................................................................... 36
4-3-4 I/F PBA Detect Block Diagram........................................................................................................ 37
4-3-5 RS-232C Communication Block Diagram....................................................................................... 37
4-3-6 Parallel Communication Block Diagram ......................................................................................... 38
4-3-7 USB Communication Block Diagram .............................................................................................. 38
4-3-8 DIP Switch Circuit ........................................................................................................................... 39
4-3-9 Thermal Printer Head Circuit .......................................................................................................... 40
5. Disassembly and Assembly ..................................................................................................................... 41
5-1 Case lower block ................................................................................................................................... 41
5-2 Case Upper block .................................................................................................................................. 43
5-3 Frame block ........................................................................................................................................... 45
6. Adjustments and Maintenance................................................................................................................. 48
6-1 Adjustment ............................................................................................................................................. 48
6-1-1 Remaining Roll Paper Adjustment.................................................................................................. 48
6-1-2 Paper Jam....................................................................................................................................... 49
6-2 Maintenance .......................................................................................................................................... 50
7. Troubleshooting ........................................................................................................................................ 51
7-1 Power Problem ...................................................................................................................................... 51
7-2 System Problem..................................................................................................................................... 52
7-3 Panel PBA and Sensor Problem............................................................................................................ 53
7-4 Thermal Printer Head and Feed Motor Problem ................................................................................... 54
7-5 Auto Cutter and Drawer Problem........................................................................................................... 55
7-6 Dip S/W and I/F PBA Select Problem.................................................................................................... 56
7-7 RS-232C Serial Communication Problem ............................................................................................. 57
7-8 IEEE-1284 Parallel Communication Problem........................................................................................ 58
7-9 USB2.0 Communication Problem .......................................................................................................... 59
Rev. 2.01
-3-
SRP-350/352plusA&C
1. Precaution Segment
1-1 Safety Precautions
1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.
2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices including:
nonmetallic control knobs and compartment covers.
3. Make sure that there are no cabinet openings through which people – particularly children - might
insert fingers and contact dangerous voltages. Such openings include excessively wide cabinet
ventilation slots and improperly fitted covers and drawers.
4. Leakage Current Hot Check:
WARING: Do not use an isolation transformer during this test.
Use a leakage-current tester or a metering system that complies with American National Standards
Institute (ANSI C101.1, Leakage Current for Applications), and Underwriters Laboratories (UL Publications
UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into a 100VAC or 240VAC outlet of the
Adaptor.
With the unit’s AC switch first in the ON position and then OFF, measure the current between a
known Earth ground (metal water pipe, conduit, etc.) and all exposed metal part, including: metal cabinet,
frame, and screw-heads and printer. The current measure should not exceed 0.1 milliamp. Reverse the
power-plug prong in the AC outlet and repeat the test.
5. Design Alteration Warning:
Never alter or add to the mechanical or electrical design of the ECR. Unauthorized alterations might create
a safety hazard. Also any design changes or additions will void the manufacture’s warranty.
6. Components, parts and wiring that appear to have overhead or that are otherwise damaged should be
replaced with parts that meet the original specifications. Always determine the cause of damaged or
overheating and correct any potential hazards.
7. Observe the original lead dress, especially near the following areas: sharp edges, and especially the AC
and high voltage supplies. Always inspect for pinched, out-of-place, or frayed wiring.
Do not change the spacing between components and the printed circuit board. Check the AC power cord
for damage. Make sure that leads and components do not touch thermally hot parts.
8. Product Safety Notice:
Some electrical and mechanical parts have special safety-related characteristics, which might not be
obvious from visual inspection. These safety features and the protection they give might be lost if the
replacement component differs from the original-even if the replacement is rated for higher voltage,
wattage, etc.
Components that are critical for safety are indicated in the circuit diagram by shading,
(
)or (
Use replacement components that have the same ratings, especially for flame resistance and dielectric
strength specifications. A replacement part that does not have the same safety characteristics as the
original might create shock, fire or other hazards.
Rev. 2.01
-4-
).
SRP-350/352plusA&C
1-2 Servicing Precaution
WARNING 1: First read the Safety Precaution section of this manual. If some unforeseen
circumstance creates a conflict between the servicing and safety precautions,
always follow the safety precaution.
WARNING 2: An electrolytic capacitor installed with the wrong polarity might explode.
1. Always unplug the unit’s AC power cord from the AC power source or the Power Switch off before
attempting to:
(a) Remove or reinstall any component or assembly,
(b) Disconnect an electrical plug or connector,
(c) Connect a test component in parallel with an electrolytic capacitor.
2. Some components are raised above the printed circuit board for safety.
An insulation tube or tape is
sometime used. The internal wiring is sometimes clamped to prevent contact with thermally hot
components. Reinstall all such elements to their original position.
3. After servicing, always check that the screws, components and wiring have been
correctly reinstalled.
Make sure that the portion around the serviced part has not been damaged.
4. Check the insulation between the blades of the AC plug and accessible conductive parts
(example: metal panels and input terminals).
5. Insulation Checking Procedure: Disconnect the power cord from the AC source and
turn the power switch
ON. Connect an insulation resistance meter (500V) to the blades of the AC plug.
The insulation resistance
between each blade of the AC plug and accessible conductive parts (see above) should be
greater than 1 mega-ohm.
6. Never defeat any of the B+ voltage interlock. Do not apply AC power to the unit
(or any of its assemblies)
unless all solid-state heat sinks are correctly installed.
7. Always connect an instrument’s ground lead to the instrument chassis ground before
connecting the positive lead; always remove the instrument’s ground lead last.
Rev. 2.01
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SRP-350/352plusA&C
1-3 Precaution for Electrostatically Sensitive Devices (ESDs)
1. Some semiconductor (solid state) devices are easily damaged by static electricity. Such components are
called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect
transistors. The following techniques will reduce the occurrence of component damaged caused by static
electricity.
2. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge
from your body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device.
(Be sure to remove it prior to applying power-this is an Electric shock precaution.)
3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to
prevent accumulation of electrostatic charge.
4. Do not use freon-propelled chemical. These can generate electrical charges that damage ESDs.
5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.
6. Use only an anti-static solder removal device. Many solder removal devices are not rated as anti-static;
these can accumulate sufficient electrical charge to damage ESDs.
7. Do not remove a replacement ESD from its protective package until you are ready to install it.
Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam,
aluminum foil or other conductive materials.
8. Immediately before removing the protective material from the leads of a replacement ESD, touch the
protective material to the device will be installed.
9. Minimize body motions when handling unpacked replacement ESDs. Motions such as brushing clothes
together, or lifting a foot from a carpeted floor can generate enough static electricity to damaged an ESD.
1-4 Operational Precautions
1. The heating element of the printer mechanism’s thermal head and the driver IC are easily damaged.
Never allow these components to come into contact with metal or other hard objects.
2. Never touch the printer mechanism’s heating element with your hand. Doing so can damage the heating
element and affect proper operation.
3. The head and motor areas are very hot during and immediately after printing. Do not touch components
in these areas directly with your hand.
4. Do not use any paper other than these specified in this manual otherwise print head reliability and print
quality are affected adversely.
5. Thermal paper starts to color at around 70ºC. Take care to protect unused and printed thermal paper
against the affects of heat, light and characters on the paper to feed.
6. Take the roll paper out of the printer when you will not use the printer for a long time in a high
temperature and humidity environment.
Rev. 2.01
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SRP-350/352plusA&C
2. Installation and Operation
2-1 Installation
2-1-1 AC Adapter Installation
2-1-2 Interface Cable Installation
Interface Connector
Interface Cable
Figure 2-1 AC Adapter Installation
Figure 2-2 I/F Cable Installation
1. Mack sure the printer is turned off with the
side of the switch.
2. Plug the DC cord connector into the power jack
on the printer. (Plug the flat side down)
3. Plug the AC Adapter power cord into the wall
outlet.
1. Turn off the printer, host ECR and Computer.
2. Plug RS-232, USB or Parallel Cable connector
into the I/F connector on the printer.
3. Tighten the screws on both sides of the connector.
4. Turn on the printer, host ECR and Computer.
2-1-3 Cash Drawer Cable Installation
2-1-4 Paper Roll Installation
Cash Drawer
Connector
Cash Drawer Cable
Figure 2-3 Cash Drawer Cable Installation
Figure 2-4 Paper Roll Installation
1. Open the cover printer and remove the used
paper roll core if there is one.
2. Load the paper roll on the paper holder as
shown.
3. Close the cover printer.
1. Turn the printer off.
2. Plug the cash drawer cable connector into
the connector on the printer.
(To remove the cash drawer cable, press
the clip on the connector, grasp the connector
and pull it out.)
Rev. 2.01
-7-
SRP-350/352plusA&C
2-1-5 Wall Mount Installation
1. Remove the three screw from the bottom of
The Case lower. Separate the Case lower
From the Main body.
2. Attach the Plate-Spring to the right side of
Frame-body and tighten a screw as illustrated.
3. After assembling the Case lower to set Body,
Turn the Set over and attach the BRKT Hanger
To the Case lower then tighten four screws.
Rev. 2.01
4. Attach the BRKT Mount to the wall firmly
With the eight screws.
-8-
SRP-350/352plusA&C
5. Be sure that the BRKT attached properly to match
the direction of arrow as follow. and the BRKT
Mount should be always fixed vertically.
Rev. 2.01
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SRP-350/352plusA&C
2-2 Operation
2-2-1 Setting the DIP switches
The DIP switches are located on the bottom of the printer. The DIP switches are used to set the printer to perform various
functions. Follow these when changing DIP switches setting :
1.
2.
3.
4.
Turn the printer power switch off.
Remove the screw on the bottom of the printer and open the
bracket.
Flip the DIP switches using tweezers or another marrow-ended
tool. Switches are in when up and off when off down in the
Figure 3-12.
The new setting takes effect when you turn on the printer.
Note : Always change DIP switch settings only when the
printer is turned off. Change made with the power on
have no effect and then on again.
Figure 2-5 Setting the DIP switches
2-2-2 Setting the DIP switch (RS-232C Serial Interface)
• DIP Switch 1
SW
Function
1-1
Auto Line Feed
1-2
Handshaking
1-3
Data Length
1-4
Parity Check
1-5
Parity Selection
1-6
Baud Rate Selection (bps)
1-7
1-8
• DIP Switch 2
SW
Function
2-1
Reserved
2-2
Internal bell control
2-3
Auto Cutter
2-4
2-5
2-6
2-7
2-8
BUSY Condition
Print Density
Near-End Sensor Status
Rev. 2.01
ON
Enable
XON/XOFF
7bits
Yes
EVEN
OFF
Disable
DTR/DSR
8bits
No
ODD
Refer to the following table 1
ON
Internal bell disable
Disable
Receive Buffer Full
OFF
Internal bell enable
Enable
* Offline
* Receive Buffer Full
Refer to the following table 2
Disable
- 10 -
Enable
Default
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
Default
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
SRP-350/352plusA&C
2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface)
• DIP Switch 1
SW
Function
1-1
Auto Line Feed
1-2
Reserved
~
1-8
• DIP Switch 2
SW
Function
2-1
Reserved
2-2
Internal bell control
2-3
Auto Cutter
2-4
2-5
2-6
2-7
2-8
OFF
Disable
Default
OFF
-
-
OFF
OFF
Internal bell enable
Enable
* Offline
* Receive Buffer Full
Default
OFF
OFF
OFF
ON
Internal bell disable
Disable
BUSY Condition
Receive Buffer Full
Print Density
Refer to the following Table 2
Near-End Sensor Status
Disable
• Table 1 – Baud rate (bps) Selection
Transmission Speed
2400
4800
9600
19200
38400
57600
115200
• Table 2 – Print Density Selection
2-5
2-6
ON
ON
OFF
OFF
ON
OFF
OFF
ON
2-5
2-6
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
ON
Enable
1-6
ON
ON
OFF
OFF
OFF
OFF
ON
Enable
1-7
OFF
OFF
ON
OFF
ON
OFF
ON
2-7
Reserved
Reserved
Reserved
Reserved
2-7
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1-8
OFF
ON
OFF
OFF
ON
ON
ON
Print Density (Mono color)
1(Light)
2
3
4(Dark)
Print Density (Two colors )
80%
90%
95%
100%
105%
110%
120%
130%
OFF
OFF
OFF
OFF
OFF
Default
9600
Default
2
Default
100%
※ Auto Cutter Enable / Disable selection
SW 2-3
Application
Rev. 2.01
Dip Switch Set 2
ON
Auto Cutter Disabled
OFF
Auto Cutter Enabled
Ignores Auto Cutter error for continuous printing.
- 11 -
SRP-350/352plusA&C
2-2-4 Hexadecimal Dumping
This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in
finding software problems. when you turn on the hexadecimal dump function, the printer prints all commands
and data in hexadecimal format along with a guide section to help you find specific commands.
To use the hexadecimal dump function, follow these steps :
1. After you make sure that the printer is off.
Open the cover.
2. Turn on the printer, while holding down the FEED button.
3. close the cover, then the printer enters the hexadecimal dump mode.
4. Run any software program that sends data to the printer. The printer will print all the codes it
receives in a two-column format. The first column contains the hexadecimal codes and the second
column gives the ASCII characters that corresponds to the codes.
1B 21 00 1B 26 02 40 40
02 0D 1B 44 0A 14 1E 28
00 01 0A 41 0D 42 0A 43
.!..&@@
...D....(
...A.B.C
Note : A period(.) is printed for each code that no ASCII equivalent.
Note : During the hex dump all commands expect DLE EOT and DLE ENQ are disabled.
5. When the printing finishes, turn off the printer.
6. Turn on the printer and then the hexadecimal model is off.
2-2-5 The self Test Mode
The self-test checks whether the printer has any problem. If the printer does not function properly, contact
your dealer The self-test checks the following :
1. Make sure paper roll ahs been installed properly.
2. Turn on the power while holding down the FEED button. The self-test begins.
3. Tue self-test prints the current printer status, which provides the control ROM version and the DIP
witch setting.
4. After printing the current printer status, self-test printing will print the following and pause (The
PAPER LED light blinds).
Self-Test printing
Please press the Feed button
5. Press the FEED button to continue printing. The printer prints a pattern using the built-in character
set.
6. The self-test automatically ends and cuts the paper after printing the following.
*** Completed ***
The printer is ready to receive data as soon as it completes the self-test.
Rev. 2.01
- 12 -
SRP-350/352plusA&C
ASCII
!"#$%&'()*+,-./0123456789:;<=>?@
"#$%&'()*+,-./0123456789:;<=>?@A
#$%&'()*+,-./0123456789:;<=>?@AB
$%&'()*+,-./0123456789:;<=>?@ABC
%&'()*+,-./0123456789:;<=>?@ABCD
&'()*+,-./0123456789:;<=>?@ABCDE
'()*+,-./0123456789:;<=>?@ABCDEF
()*+,-./0123456789:;<=>?@ABCDEFG
) * + , - . / 0 1 2 3 4 5 67 8 9 : ; < = > ? @ A B C D E F G H
*+,-./0123456789:;<=>?@ABCDEFGHI
+,-./0123456789:;<=>?@ABCDEFGHIJ
, -. /0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K
-./0123456789:;<=>?@ABCDEFGHIJKL
./0123456789:;<=>?@ABCDEFGHIJKLM
/0123456789:;<=>?@ABCDEFGHIJKLMN
0123456789:;<=>?@ABCDEFGHIJKLMNO
123456789:;<=>?@ABCDEFGHIJKLMNOP
23456789:;<=>?@ABCDEFGHIJKLMNOPQ
3456789:;<=>?@ABCDEFGHIJKLMNOPQR
456789:;<=>?@ABCDEFGHIJKLMNOPQRS
56789:;<=>?@ABCDEFGHIJKLMNOPQRST
6789:;<=>?@ABCDEFGHIJKLMNOPQRSTU
789:;<=>?@ABCDEFGHIJKLMNOPQRSTUV
89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVW
9:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWX
SRP-350plus VER.6.02 STD 2007.04.17
================================
DIP SWITCH SW1/SW2 STATUS
DIP SW1
12345678
ON :
***
OFF :
DIP SW1
ON :
OFF :
*****
12345678
********
MEMORY SWITCH STATUS
MSW1 12345678
MSW2 12345678 (Codepage Selection)
MSW8 12345678 (Reserved)
MSW9 12345678 (Reserved)
MSW10 12345678 (Special Function1)
MSW11 12345678 (Special Function2)
PC437
ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒ
üéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒá
éâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒáí
âäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒáíó
äàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒáíóú
àåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥Ptƒáíóúñ
åçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñÑ
çêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪ
êëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº
ëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿
èïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌
ïîìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐
îìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½
ìÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼
ÄÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡
ÅÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«
ÉæÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»
æÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓
ÆôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒
ôöòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒░
öòûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒░┃
òûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒░┃┤
ûùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒░┃┤╡
ùÿÖÜ¢£¥PtƒáíóúñѪº¿┌ ┐½¼¡«»▓▒░┃┤╡╢
ÿÖÜ¢£¥PtƒáíóúñѪº¿┌┐½¼¡«»▓▒░┃┤╡╢╖
Serial(RS-232C) Interface
Baud Rate
: 115200 bps
Data bits
: 8 bits
Parity Check : None
Stop bit
: 1 bit or more
Handshaking : DTR/DSR
Buffer CAPACITY : 64K Byte
Handshaking (Busy condition) [Dip S/W 2-4]
Offline or Receive buffer full
EPSON EMULATION MODE
Print Density
LIGHT [ 1 2 3 4 ] DARK
█
Self-test printing,
please press the FEED button.
Figure 3-13 The Self-Test Sheet
Rev. 2.01
- 13 -
SRP-350/352plusA&C
2-2-6 Setting the Memory Switches
This printer has Memory Switch set which is software switches. Memory Switch set has MSW1,
MSW2,MSW8, MSW9,MSW10,MSW11,Customize value.
Memory Switch setting utility can change the Memory Switch set to ON or OFF as shown in the table below
(default : all OFF) :
Settings of the Memory Switch are stored in the NV memory : therefore, even if the printer is turned off, the
settings are maintained.
※ Notes : The Memory Switch is available to be changed by three methods :
- Memory Switch setting utility.
- Control from ESC/POS command.
MSW1
Switch
1~8
Function
Reserved
MSW2
Switch
1
2
3~8
Function
Font Selection
Auto Cutter Function
Code Page Selection
MSW2-8
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
MSW2-7
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
Rev. 2.01
MSW2-6
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
MSW2-5
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
--
OFF
Fixed to OFF
ON
OFF
Font B (9x24)
Font A (12x24)
Full Cutting
Partial Cutting
Refer to following Table
MSW2-4
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
- 14 -
MSW2-3
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Character Table
Page 0 437 (USA, Standard Europe)
Page 1 Katakana
Page 2 850 (Multilingual)
Page 3 860 (Portuguese)
Page 4 863 (Canadian-French)
Page 5 865 (Nordic)
Page 16 1252 (Latin I)
Page 17 866 (Cyrillic #2)
Page 18 852 (Latin 2)
Page 19 858 (Euro)
Page 21 862 (Hebrew DOS code)
Page 22 864 (Arabic)
Page 23 Thai42
Page 24 1253 (Greek)
Page 25 1254 (Turkish)
Page 26 1257 (Baltic)
Page 27 Farsi
Page 28 1251 (Cyrillic)
Page 29 737 (Greek)
Page 30 775 (Baltic)
Page 31 Thai14
Page 32 Hebrew Old code
Page 33 1255 (Hebrew New code)
Page 34 Thai11
Page 35 Thai18
Page 36 855 (Cyrillic)
Page 37 857 (Turkish)
Page 38 928 (Greek)
Page 39 Thai16
Page 40 1256 (Arabic)
SRP-350/352plusA&C
MSW8
Switch
1~8
Function
Reserved
ON
--
OFF
Fixed to OFF
MSW9
Switch
1~8
Function
Reserved
ON
--
OFF
Fixed to OFF
ON
OFF
External buzzer enable
External buzzer disable
-2 inch
Enable
--
Fixed to OFF
3 inch
Disable
Fixed to OFF
ON
--
OFF
Fixed to OFF
MSW10 (Special Function 1)
Switch
Function
1
External buzzer control
(This functions operate only after
cutting)
2~4
Reserved
5
Printing width
6
2 Color support
7~8
Reserved
MSW11 (Special Function 2)
Switch
1~8
Rev. 2.01
Function
Reserved
- 15 -
SRP-350/352plusA&C
3. Product Specifications
3-1 Appearance
3-1-1 Printer Dimensions (mm)
SRP-350plus
SRP-352plus
Figure 3-1 Printer Dimension
3-1-2 AC Adapter Dimensions (mm)
35mm
115mm
65mm
Figure 3-2 Adapter Dimension
Rev. 2.01
- 16 -
SRP-350/352plusA&C
3-1-3 Feature Locations-SRP-350/352plusA/C TYPE
1.
2.
3.
4.
5.
6.
7.
Cover-Open
Case-Upper
Case-Lower
Label-Control
Push Button
Cover-Cutter
Power Button
Rev. 2.01
8. Bracket Dip Switch
9a. Parallel interface(IEEE-1284)
9b. Serial interface(RS-232C)
9c. Ethernet interface(10BASE T)
9d. 10. DC Power Jack
11. Drawer Kick-Out Connector
12. USB 2.0
Figure 3-3 Feature Location
- 17 -
SRP-350/352plusA&C
3-2 General Specifications
Item
Product
Processor
Memory
Interface Serial
(RS-232C / RS-485)
Interface Parallel
USB
USB2.0
Printer
Auto Cutter
Power Consumption
AC Adapter
Environment
Condition
Weight
Dimensions(mm)
Rev. 2.01
Description
Remark
• SRP-350/352plusCOS : RS-232 Serial Communication
• SRP-350/352plusCOP : IEEE1284 Parallel Communication
• SRP-350/352plusCO : USB Communication
• SRP-350/352plusCOE : Ethernet
• NEC UPD70F3107AGJ(32 Bit)
Internal ROM Size : 256K Byte
Internal RAM Size : 10240 Byte
• RAM
SRAM : 4Mbits (K6R4008VID-JU0000)
FLASH RAM : 16Mbits (M29W160EB-70N6)
• Flow Control :
1) DTR / DSR (H/W Flow Control)
2) XON / XOFF (S/W Flow Control)
• Baud Rate : 2400 /4800/ 9600/ 19200/ 38400
/57600/ 115200 Bps
• Receive Buffer : 64 Kbytes
• Connector : DB25P Female (I/F PBA Side)
• Mode :
1) Forward Mode : Compatibility Mode
2) Reverse Mode : Nibble / Byte Mode
• Connector : 36 Pin Centronics (Ribbon Type)
• Transfer Type : BULK
• Speed : 12 Mbps (Full-Speed)
• Power : Self-Powered
• Transfer Type : BULK
• Speed : 480 Mbps (High-Speed)
• Power : Self-Powered
• Printing Method : Thermal Line Printing
• Printing Speed
1) SRP-350plus : Mono 200mm/Sec, 47.28 Line/Sec
2Color 100mm/Sec, 23.6Line/sec
2) SRP-352plus : Mono 195mm/Sec, 52 Line/Sec
2Color 90mm/Sec, 24Line/sec
• Type : Guillotine
• Cutting Method : 1 Point Partial Cutting
• Approx. 27W (Peak)
• Input : AC 100V ~ 240V, 50Hz/60Hz
• Output : DC 24V±5%, 2.5A
• Input : AC 100V ~ 240V, 50Hz ~ 60Hz
• Output : DC24V±5%, 2.5A
• 2.3 Kg (With Packing)
• 195(W) x 145(D) x 146(H)
Table 3-1 General Specification
- 18 -
Flash ROM Version
The Flow Control, Baud
Rate, Stop Bit and Parity
Are determined by DIP
S/W position.
SRP-350/352plusA&C
3-3 Thermal Printer Specifications
3-3-1 Printer Specification
1) 180dpi
Item
Description
Model
• SRP-350plusA/C(TPH : AG072-H7E817,AOI Electronoics)
Print Method
• Thermal Line Printing
Dot Density
• 0.141 mm (7.09 Dots/mm)
Printing Direction
• Unidirection with friction feed
Printing Width
• 72±0.2mm, 512 dot Position
Character / Line
• 42 (Font A : 12x24)
Character Spacing
• 0.28mm (0.01) (2 dots) (Font A)
• 0.28mm (0.01) (2 dots) (Font B)
Printing Speed
• Mono Max. 200mm (47.28 Lines / Sec, 1/6inch feed)
• 2color Max. 100mm(23.6 Line/ Sec, 1/6inch feed)
• Ladder Barcode : Mono 200mm/sec, 2Color 100mm/sec
Paper feeding Speed
• Approx. 200mm /Sec
Remark
• 56 (Font B : 9x24 )
Table 3-2 Thermal Printer Specification
2) 203 dpi
Item
Description
Model
• SRP-352plusA/C (TPH : AG072-H7E813 ,AOI Electronoics)
Print Method
• Thermal Line Printing
Dot Density
• 0.125 mm (8 Dots/mm)
Printing Direction
• Unidirection with friction feed
Printing Width
• 72±0.2mm, 576 dot Position
Character / Line
• 48 (Font A : 12x24)
Character Spacing
• 0.25mm (0.01) (2 dots) (Font A)
• 0.25mm (0.01) (2 dots) (Font B)
Printing Speed
• Mono Max. 195mm (52 Lines / Sec, 1/6inch feed)
• 2color Max. 90mm(24 Line/ Sec, 1/6inch feed)
• Ladder Barcode : Mono 180mm/sec, 2Color 90mm/sec
Paper feeding Speed
• Approx. 200mm /Sec
Remark
• 64 (Font B : 9x24 )
Table 3-3 Thermal Printer Specification
3-3-2 Character Specification
Item
Description
• Alphanumeric Characters : 95
Number of Character
• Extended Characters : 128 x 34 Page
(Including one space page)
• International Characters : 32
Character Structure
• 12 x 24 (Font A) (Including 2-dot spacing in horizontal)
• 9 x 24 (Font B) (Including 2-dot spacing in horizontal)
Font A is selected as the default
Table 3-4 Thermal Printer Character Specification
Rev. 2.01
- 19 -
Remark
SRP-350/352plusA&C
3-3-3 Paper Specification
Item
Description
Paper Type
• Mono :TF50KS-E(Nippon paper)
• 2Color : PB-70(Mitsubishi)
Paper Form
• Paper Roll
Paper Width
• 80mm(+0,-0.5)
Paper Roll Size
• Max 83mm(3.26”)
Spool Inside Dia.
• 12mm (0.47)
Spool Outside Dia.
• 18mm (0.71)
Remark
Table 3-5 Thermal Printer Paper Specification
※ Note
* Mono : The Following paper can be used instead of the specified paper above.
TF50KS-E(Paper thickness : 65μm) : Nippon Paper industries Co., Ltd.
PD 160R (
“
: 75μm) : New Oji Paper Mfg, Co., Ltd.
P350
(
“
: 62μm) : Kansaki Specialty Paper, Inc. (USA)
* 2Color: PB-670 (
“
: 75μm) : Mitsubishi
PD750R (
“
: 75μm) : Oji paper Mfg. Co.,Ltd.
3-3-4 Reliability and Environment Specification
Item
Life
Description
• Mechanism : Monochrome : 20,000,000 Lines
2Color
: 10,000,000 Lines
The reliability values above are assumed When a 15-Line feed
and a 10-Line print repeat alternately
• Head : 1x108 Pulses, Monochrome : 150Km, 2Color : 75Km
• Auto Cutter : 1,800,000 Cut, 700,000 cut(In case of KF50)
MCBF
• Monochrome :70,000,000Lines, 2Color:35,000,000Lines
Environmental
Temperature
• Operating : 0°C ~ +45°C
• Storage : -10°C ~ +50°C (Except for Paper)
Humidity
• 10% ~ 90% RH
Table 3-6 Thermal Printer Reliability Specification
Rev. 2.01
- 20 -
Remark
SRP-350/352plusA&C
3-3-5 Printable Area
a
b
d
c
e
Figure 3-4 Printable Area
1) 180dpi
Item
Description
80±0.5mm(3.15 ±0.0197)
a
0.141 (0.0056 )
b
72±0.2mm(2.83 ±0.0079)
c
2.75mm~4.25mm
d
2.75mm~4.25mm
e
512
Dots
56 Character
Font 9X24
42 Character
Font 12X24
* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.
Remark
2) 203dpi
Item
Description
80±0.5mm(3.15 ±0.0197)
a
0.125 (0.0049 )
b
72mm±0.2mm (2.83±0.0079)
c
2.75mm~4.25mm
d
2.75mm~4.25mm
e
576
Dots
64 Character
Font 9X24
48 Character
Font 12X24
* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.
Remark
3-3-6 TPH (Thermal Printer Head) Specification
1) 180dpi
Item
Description
Heat Element Structure
2 Heaters / Dot
Number of Heat Element
512 Dots
Heat Element Pitch
0.141mm/dot, 7.09Dot/mm (180DPI)
Print Width
72±0.2mm
Average Resistance
800Ω ± 3%
1) Resistance R25 : 30kΩ ± 5% (At 25℃)
Thermister
2) B Value : 3950K ± 2%
3) Temperature : - 40℃ ~ +125℃
Table 3-7 TPH Specification
Rev. 2.01
- 21 -
Remark
SRP-350/352plusA&C
Item
Maximum
Unit
Print Cycle (S.L.T.)
0.71
ml/Line
Supply Energy
0.44
mJ/Dot
Supply Voltage
26.4
Substrate Temperature
70
V
℃
Number of heating dots at same time
256
Dots
Logic Supply Voltage (Vdd)
5.25
V
Logic input Voltage (Vin)
Conditions
Tsub=25℃
Vp < 28.0V (Vp : Peak of VH)
Thermister Temperature
Include Peak Voltage of Vdd
-0.5 ~ Vdd+0.5
V
Table 3-8 TPH Maximum Condition (At 25℃)
2) 203dpi
Item
Heat Element Structure
Number of Heat Element
Heat Element Pitch
Print Width
Average Resistance
Thermister
Description
2 Heaters / Dot
576 Dots
0.125mm/dot, 8Dot/mm (203DPI)
72±0.2mm
800Ω ± 3%
1) Resistance R25 : 30kΩ ± 5% (At 25℃)
2) B Value : 3950K ± 2%
3) Temperature : - 40℃ ~ +125℃
Remark
Table 3-9 TPH Specification
Item
Maximum
Unit
Print Cycle (S.L.T.)
0.63
ml/Line
Supply Energy
0.34
mJ/Dot
Supply Voltage
26.4
Substrate Temperature
70
V
℃
Number of heating dots at same time
320
Dots
Logic Supply Voltage (Vdd)
5.25
V
Logic input Voltage (Vin)
Conditions
Tsub=25℃
Vp < 28.0V (Vp : Peak of VH)
Thermister Temperature
Include Peak Voltage of Vdd
-0.5 ~ Vdd+0.5
V
Table 3-10 TPH Maximum Condition (At 25℃)
3-3-7 Other Component Specification
Item
Auto Cutter
Paper Feed Motor
Paper End Sensor
Paper Roll Near End Sensor
Description
• Model : ORC-RUY80 (OHYANE RIKI MFG, Co., Ltd)
• Type : Guillotine Type
• Motor : DC Brush Motor FK-180SH-12280 (Mabuchi Motor)
• Voltage : 24V DC ± 7 %
• Current : 800mA (Average), 1.6A(Peak)
• Model : 14PU-M046-G1VM (Minebea)
• Type : 2-Phase, Bi-Polar chopper dual,3.75 Step angle
• Voltage : 24V ± 10% DC
• Drive Current : 0.7A [PHASE]
• Resistance : 4.2±0.42 (Ω/Phase)
• Inductance : 3.0 REF. (mH/Phase)
• Reflection Type Photo Sensor
• Reflection Type Photo Sensor
Table 3-11 Other Component Specification
Rev. 2.01
- 22 -
Remark
SRP-350/352plusA&C
3-4 SMPS Specifications
3-4-1 SMPS (Switching Mode Power Supply) Specification
Item
Input Voltage
Input Current
In rush Current
Line Regulation
Load Regulation
Ripple Noise
O.C.P
(Over Current Protect)
S.C.P
(Shot Current Protect)
Description
• Typical : 100V ~ 240V AC
• Min : 90V AC
• Max : 264V ac
• Max : 1.5A (When 120V), 0.75A (When 230V)
• Max : 40A (Peak to Peak)
• +24V 1%
• +24V 5%
• Peak 300mV
• 3.0A ~ 8.0A
• Fold-Back Method
Table 3-12 Power Adapter (SMPS) Specification
3-4-2 SMPS Output Connector
Pin Number
Signal Name
1
+24 VDC
2
GND
3
N.C
Shield
Frame GND
Table 3-13 Power Connector Pin Description
Figure 3-5 Power Connector
Rev. 2.01
- 23 -
Remark
SRP-350/352plusA&C
3-5 Interface Specifications
3-5-1 RS-232C Serial Interface
3-5-1(a) Specification
Item
Data Transmission
Synchronization
HandShaking
(Flow Control)
Signal Level
Baud Rate
Data Word Length
Parity
Connector
Description
• Serial
• Asynchronous
• H/W : DTR/DSR
• S/W : XON/XOFF
• Logic1 (MARK) : -3V ~ -15V
• Logic0 (SPACE) : +3V ~ +15V
• 2400/4800/9600/19200/38400/57600/115200 Bps
• 8 bit
• None
• DB25P Female (I/F PBA)
Table 3-14 RS-232C Specification
Remark
XON : ASC Code 11h
XOFF:ASC Code 13h
※ Note : The HandShaking (Flow Control) / Data Word Length / Baud Rate / Parity functions depend
on the DIP Switch settings. Refer to the Operation Manual.
3-5-1(b) RS-232C I/F Cable
Printer Side: D-SUB25P-Male
Ferrite Core : 1 Turn (OP-118E : 18.2 x 12.5 x 25.5)
CONN : User Spec
In Case PC : D-SUB25P-Female or
D-SUB9P-Female
Figure 3-6 RS-232C Cable
Rev. 2.01
- 24 -
SRP-350/352plusA&C
3-5-1(c) Cable Connection
(S.G)
1
1
(S.G)
(TXD) 2
2 (TXD)
(RXD) 3
3 (RXD)
Printer
Host
Side(25P)
Side(25P)
(DSR) 6
6 (DSR)
(DTR) 20
20 (DTR)
(S.G) 7
7
(S.G)
Figure 3-7 RS-232C Cable Connection
3-5-1(d) Signal Description
Pin No.
BODY
2
3
Signal Name
Frame GND
TXD
RXD
6
DSR
7
Signal GND
20
DTR
Rev. 2.01
Signal Direction
Output
Input
Function
Frame Ground
Transmit Data
Receive Data
This signal indicates whether the host computer can receive
data. (H/W flow control)
1) MARK(Logic1) : The host can receive a data.
2) SPACE(Logic0) : The host can not receive a data.
Input
3) The printer transmits a data to the host, after confirming
this signal.
4) When XON/XOFF flow control is selected, the printer
does
not check this signal.
Signal Ground
This signal indicates whether the printer is busy. (H/W flow
control)
1) MARK(Logic1) : The printer is busy.
2) SPACE(Logic0) : The printer is not busy.
Output
3) The host transmits a data to the printer, after confirming
this signal.
4) When XON/XOFF flow control is selected, the host does
not check this signal.
Table 3-15 RS-232C Pin Description
- 25 -
SRP-350/352plusA&C
3-5-1(e) H/W Flow Control
When DTR/DSR flow control is select, before transmitting a data, the Printer checks whether the host is
BUSY or not. If the host is BUSY, the Printer does not transmit a data to the host. If the host is not BUSY, the
Printer transmits a data to the Host. The host is the same. Refer to the Interface Part of Chapter 7 (Special
Circuit Diagrams).
3-5-1(f) S/W Flow Control
When XON/XOFF flow control is selected, the printer transmits XON(ACSII 11h) or XOFF(ASCII 13h) signal
through the TXD line.
If the Printer is BUSY, the Printer transmits XOFF(ASCII 13h) to host through the TXD line. Then the host
recognize that the Printer is BUSY. So, the host does not transmit a data to the Printer. If the Printer is
released from BUSY, the Printer transmits XON(ASCII 11h) to host through the TXD line. Then the host
recognize that the Printer is not BUSY. And the host transmit a data to the Printer.
※ Note : Refer to the Operation Manual about XON/XOFF flow control.
3-5-2 IEEE1284 Parallel Interface
Bidirectional parallel interface : in accordance with the IEEE1284 Nibble/Byte mode.
2-5-2(a) Forward Mode Specification (Compatibility mode)
Data transmission from host computer to printer : Centronics compatible
Item
Data Transmission
Synchronization
HandShaking
Signal Level
Connector
Description
• 8-bit Parallel
• External supplied nStrobe signals
• nACK and Busy signals
• TTL compatible
• Centronics 36P
Table 3-16 IEEE1284 Specification
Remark
3-5-2(b) Reverse Mode Specification (Nibble / Byte mode)
Data transmission from the printer to the host computer.
The STATUS data transmission from the printer to the host computer is accomplished in the Nibble or Byte
mode. This mode allows data transmission from the asynchronous printer under the control of the host
computer. Data transmission in the Nibble mode are made via the existing control lines in units of for bits
(Nibble). In the Byte mode, data transmission in accomplished by making the 8-bit data lines bidirectional.
Neither mode can operate at the same time as the compatibility mode, so switching is always required.
Rev. 2.01
- 26 -
SRP-350/352plusA&C
3-5-2(c) Signal Specification (Compatibility/Nibble/Byte mode)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19~30
31
32
33
34
35
36
Source
Host
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Printer
Printer
Printer
Printer
Host
Printer
Host
Printer
Printer
Printer
Host
Compatibility Mode
Nibble Mode
nStrobe
HostClk
Data 0 (LSB)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (MSB)
nAck
PtrClk
Busy
PtrBusy/Data3,7
Perror
AckDataReq /Data2,6
Select
Xflag/Data1,5
nAutoFeed
HostBusy
NC
ND
GND
GND
FG
FG
Logic-H
Logic-H
GND
GND
nlnit
nInit
nFault
nDataAvail /Data0,4
GND
ND
DK_Status
ND
+5V
ND
nSelectln
1284-Active
Table 3-17 IEEE1284 Pin Description
Byte Mode
HostClk
Data 0 (LSB)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (MSB)
PtrClk
PtrBusy
AckDataReq
Xflag
HostBusy
ND
GND
FG
Logic-H
GND
nlnit
nDataAvail
ND
ND
ND
1284-Active
3-5-2(c) IEEE1284 I/F Cable
Host
Side
Printer
Side
Figure 3-8 IEEE1284 Cable
Rev. 2.01
- 27 -
Centronics
36P
SRP-350/352plusA&C
3-5-3 USB2.0 Interface
SRP-350plus support the USB (Universal Serial Bus) Serial Communication.
3-5-3(a) Specification
Item
Transfer Type
Data Signal
Data Format
Transceiver
Speed
Power
Cable & Connector
Other
Description
• BULK
• Bi-direction, Half-Duplex
• Differential Signal Pair (D+ / D-)
• NRZI Format
• Zero Bit Stuffing after 6 ones
• Differential Receive Sensitivity : 200[mV]
• Differential common Mode Range : 0.8 ~ 2.5[V]
• Single-End Receiver Threshold : 0.8 ~ 2.0[V]
• 12 Mbps
• Self-Powered
• Cable : 5m / 2m
• Connector : B Type
• Support USB SPEC V1.1
Table 3-18 USB Specification
Remark
3-5-3(b) Signal Description
Pin No.
Shell
1
2
3
4
Signal Name
Shield
VBUS
DD+
GND
Assignment(Color)
Function
Drain Wire
Frame Ground
Red
Host Power : DC5[V] / 500[mA]
White
Differential Data Line
Green
Differential Data Line
Black
Signal Ground
Table 3-19 USB Pin Description
3-5-3(c) Cable
USB cable consists of four conductors, two power conductors, and two signal conductors.
High-/full-speed cable consists of a signaling twisted pair, VBUS, GND, and an overall shield. High-/full
speed cable must be marked to indicate suitability for USB usage. High-/full-speed cable may be used with
either low-speed, full-speed, or high-speed devices. When high-/full-speed cable used with low-speed
devices, the cable must meet all low-speed requirements.
Low-speed recommends, but does not require the use of a cable with twisted signaling conductors.
Rev. 2.01
- 28 -
SRP-350/352plusA&C
Figure 3-9 USB Cable
3-5-4(d) Construction
Raw materials used in the fabrication of this cable must be of such quality that the fabricated cable is
capable of meeting or exceeding the mechanical and electrical performance criteria of the most current USB
Specification revision and all applicable domestic and international safety/testing agency requirements; e.g.,
UL, CSA, BSA, NEC, etc., for electronic signaling and power distribution cables in its category.
American Wire
Gauge (AWG)
28
26
24
22
20
Nominal Conductor
Outer Diameter
0.381 mm (0.015)
0.406 mm (0.016)
0.483 mm (0.019)
0.508 mm (0.020)
0.610 mm (0.024)
0.610 mm (0.024)
0.762 mm (0.030)
0.787 mm (0.031)
0.890 mm (0.035)
0.931 mm (0.037)
Table 3-20 Power Pair
Rev. 2.01
- 29 -
Stranded Tinned
Conductors
7 x 36
19 x 40
7 x 34
19 x 38
7 x 32
19 x 36
7 x 30
19 x 34
7 x 28
19 x 32
SRP-350/352plusA&C
※ Note: Minimum conductor construction must be stranded tinned copper.
To minimize end user termination problems, USB uses a keyed connector protocol. The physical difference
in the Series A and B connectors insures proper end user connectivity. The A connector is the principle
means of connecting USB devices directly to a host or to the downstream port of a hub. All USB devices
must have the standard Series A connector specified in this chapter. The B connector allows device vendors
to provide a standard detachable cable. This facilitates end user cable replacement.
Figure 2-10 illustrates the keyed connector protocol.
Series A Connectors
Series B Connectors
◆Series A plugs are
◆Series B plugs are
always oriented upstream
always oriented downstream towards
towards the Host System
the USB Device
A Plugs
B Plugs
(From the
(From the
USB Device)
Host System)
B Receptacles
(Upstream Input to the
A Receptacles
USB Device or Hub)
(Downstream Output
from the USB Host orHub)
Figure 3-10 Keyed Connector Protocol
The following list explains how the plugs and receptacles can be mated:
• Series “A” receptacle mates with a Series “A” plug. Electrically, Series “A” receptacles function as outputs
from host systems and/or hubs.
• Series “A” plug mates with a Series “A” receptacle. The Series “A” plug always is oriented towards the host
system.
• Series “B” receptacle mates with a Series “B” plug (male). Electrically, Series “B” receptacles function as
inputs to hubs or devices.
• Series “B” plug mates with a Series “B” receptacle. The Series “B” plug is always oriented towards the USB
hub or device.
Rev. 2.01
- 30 -
SRP-350/352plusA&C
3-6 Cash Drawer Specifications
3-6-1 Drawer Cable
Ferrite Core : 1 turn (OP-18E : 18.2 x 12.5 x 25.5)
Figure 3-11 Drawer Cable
3-6-2 Cable Connection
Pin No.
1
2
3
4
5
6
Description
Frame GND
Drawer Kick-Out Driver Signal #1
Drawer Open / Close Signal
+24V
Drawer Kick-Out Driver Signal #2
Signal GND
Table 3-21 Drawer Cable Connection
※ Note : +24V is always output through pin 4 during power on.
Rev. 2.01
- 31 -
Direction
Output
Input
Output
-
SRP-350/352plusA&C
4. Hardware
4-1 Wiring Diagram
INTERFACE PBA
PAPER
NEAR
END
SENSOR
3 2 1
CN12
U
S
B
CASH
DRAWER
POWER
ADAPTER
1
2
3
4
2 4 6
1 3 5
1 2
CN9
CN2
CN1
1
2
POWER
SWITCH
1
2
3
4
FEED
MOTOR
16 14 12 10 8 6 4 2
17 15 13 11 9 7 5 3 1
33 31 29 27 25 23 21 19
34 32 30 28 26 24 22 20 18
CN4
PANNEL
PBA
6
5
4
3
2
1
CN11
PAPER
END
SENSOR
3
2
1
CN13
MAIN PBA (TOP VIEW)
CN6
CN7
CN8
21 19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
THERMAL PRINTER HEAD
Pin Assignment:
4 3 2 1
AUTO
CUTTER
Refer to the Schematic Diagram
[Figure 4-1 Board Wiring Diagram]
Rev. 2.01
- 32 -
SRP-350/352plusA&C
4-2 Block Diagram
POWER
ADAPTER
+24VDC
POWER
SUPPLY
CIRCUIT
VPP(+24V)
VTH(+24V)
VCC(+5V)
+3.3V
+3.3V
RS-232
DRIVER
RS-232
CON.
IEEE-1284
DRIVER
IEEE-1284
CON.
ETHERNET
DRIVER
ETHERNET
CON
USB2.0
DRIVER
USB
CON.
SENSOR
CIRCUIT
P_END &
NEAR
SENSOR
RESET
CIRCUIT
+2.5V
ADDRESS
FLACH
M29W160EB
DATA
ADDRESS
SRAM
K6R4008V1D
MCU
uPD70F3170
DATA
DRIVER
SWITCH
BUZZER
BUZZER
CIRCUIT
DIP
SWITCH
DIP
SWITCH
CIRCUIT
AUTO
CUTTER
A_CUT
SWITCH
THERMAL
HEAD
MOTOR
DRIVER
PAPER
FEED
MOTOR
LED
DRAWER
&
COMPULSORY
FEED
BOTTON
SWITCH
DRIVER
CLOCK
5MHz
[Figure 4-2 Block Diagram]
Rev. 2.01
- 33 -
SRP-350/352plusA&C
4-3 Special Circuit Descriptions
4-3-1 Power Circuit
This system is operated under 100Vac or 240Vac. The power circuit supplies the three differential DC voltage
sources.
[Figure 4-3 Power Block Diagram]
No.
1
2
3
4
5
6
VOLTAGE
VPP(+24VDC)
VTH(+24VDC)
Vdw(+7.8VDC)
Vcc(+5VDC)
Vdd(+3.3VDC)
Vdd(+2.5VDC)
DESCRIPTION
Cash Drawer Solenoid Driving / Step Motor Voltage
Thermal Printer Head (TPH) Voltage
CPU Download Voltage
Logic, Sensor Voltage
CPU, Flesh, SRAM, Reset Voltage
USB core Voltage
1) Drawer Driving and Feed, Auto Cutter Motor Voltage, TPH Driving Voltage : +24VDC
+24VDC is supplied from SMPS. This Voltage is smoothed by capacitors (CL1).
This voltage is used as a Cash Drawer Solenoid Driving voltage, Step motor driving voltage and a source
voltage of the other voltage sources and TPH Driving Voltage.
2) Voltage : +7.8V (CPU Download Voltage)
Change the input 24V to 7.8V by a regulation. U1(LM2575S-ADJ)
3) Logic IC Driving Voltage: +5V
Change the input 7.8V to 5V by a regulation. U2(BA17805-E2)
4) CPU, Flesh, SRAM, Reset Voltage: +3.3V
Change the input 7.8V to 3.3V by a regulation. U3(BA033FP-E2)
5) USB core Voltage: +2.5V
Change the input 5V to 2.5V by a regulation. U202(BH25FB1WHFV)
Rev. 2.01
- 34 -
SRP-350/352plusA&C
4-3-2 RESET Circuit
Reset signal is signal in order to start-up CPU under Power-on.
Reset circuit uses a reset ASM811REUSF-T(U8). When 3.3Vdc is fallen under 2.7Vdc by Power-off,
reset signal prohibits the system from miss-operating by lowering down to 0V.
ASM811
REUSF-T
[Figure 4-4 Reset Block Diagram]
[Figure 4-5 Reset Waveform]
Rev. 2.01
- 35 -
SRP-350/352plusA&C
4-3-3 Buzzer and Cash Drawer Circuits
1) Buzzer Driving Circuit
The Buzzer is used to inform several kinds of states which occur under system operating and gives some
information to users by controlling the P86 of CPU (UPD70F3107)
[Figure 4-6 Buzzer Block Diagram]
2) Cash Drawer Driving Circuit
The circuit is used for opening cash drawer and driven by the Q10, Q11(2SD2170). When its state is high
level signal, Q10 or Q11 (2SD2170) drive the solenoid to open the cash drawer. As an optional item, we
provide sensor switch (we call it a compulsory switch) which checks the drawer whether it is opened or not.
This sensor switch turns on for the drawer open condition, and turns off for the other.
※ Caution : Make sure that the Cash Drawer solenoid resistance is more than 20Ω.
[Figure 4-7 Cash Drawer Block Diagram]
Rev. 2.01
- 36 -
SRP-350/352plusA&C
4-3-4 I/F PBA Detect Block Diagram
When the printer is ON, the printer checks what kind of the I/F PBA is installed. After detection, the CPU
specify the I/O port properly. The following is the method of I/F PBA detection.
The I/F PBA has the three return Signal (MD0~2).
The CPU recognize the I/F PBA by the value of the three return signal.
I/F PBA
RS-232C
IEEE1284
USB2.0
ETHERNET
No Connection
MD0
L
H
H
L
L
MD1
L
H
L
H
L
MD2
H
H
H
L
L
4-3-5 RS-232C Communication Block Diagram
The CPU is used for serial communication. And also RS-232C Driver (MAX232), is used to serial
communication. Show following block diagram.
TXD,DTR
RXD,DSR
UPD70F3107
[Figure 4-8 RS-232C Communication Block Diagram]
[Figure 4-9 RS-232C Communication Waveform]
Rev. 2.01
- 37 -
SRP-350/352plusA&C
4-3-6 Parallel Communication Block Diagram
The printer support the bidirectional Parallel Interface with Centronics, Nibble, Byte Mode.
The Centronics is Forward and the Nibble, Byte are reverse Mode.
[Figure 4-10 IEEE1284 Communication Block Diagram]
4-3-7 USB Communication Block Diagram
The printer support the USB (Universal Serial Bus). The transfer type of the printer is the BULK.
[Figure 4-11 USB2.0 Communication Block Diagram]
Rev. 2.01
- 38 -
SRP-350/352plusA&C
4-3-8 DIP Switch Circuit
The key board circuit consist of the scan signal of 3 lines and the return signal of 2-line. The CPU sends
repeatedly and continuously the scan data DIP_A~DIP. The DIP S/W information input in the return signal if
the specific DIP S/W is ON status during the given time. The CPU reads the data through DIP IN1~IN2 and
analyzes what DIP S/W is ON and performs the selected function.
16
BP47
100nF
U14
74HC151/SOIC
0
2
4
6
8
10
12
14
16
4
3
2
1
15
14
13
12
D0
D1
D2
D3
D4
D5
D6
D7
218-008LPS
STROBE
11
10
9
R62
R63
R64
100F
100F
100F
5
6
DIP_A
DIP_B
DIP_C
DIP_IN1
7
8
0
A
B
C
Y
W
GND
1
3
5
7
9
11
13
15
VCC
4
3
2
1
4
3
2
1
SW1
RA10
10K 1/16W
+3.3V
RA9
10K 1/16W
5
6
7
8
5
6
7
8
+3.3V
0
16
RA12
10K 1/16W
BP48
100nF
U15
74HC151/SOIC
0
2
4
6
8
10
12
14
16
4
3
2
1
15
14
13
12
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
3
5
7
9
11
13
15
218-008LPS
A
B
C
Y
W
STROBE
11
10
9
5
6
DIP_IN2
7
8
0
VCC
4
3
2
1
1
2
3
4
SW2
CPU
uPD70F3107
+3.3V
RA11
10K 1/16W
5
6
7
8
8
7
6
5
+3.3V
0
0
0
DIP_A
DIP_B
DIP_C
DIP1 DIP2 DIP3 DIP4 DIP5 DIP6 DIP7 DIP8
[Figure 4-12 USB Communication Block Diagram]
Rev. 2.01
- 39 -
SRP-350/352plusA&C
4-3-9 Thermal Printer Head Circuit
First, the CPU sends a Serial Clock and Serial Data 256Bits(32Bytes) to the Shift Register of the Thermal
Printer. The Serial Data are stored to each Shift Register in the Thermal Printer. Because the Data#1 Pin and
the Data#2 pin are shorted on Main PCB, the Data(256Bits) are stored in both Shift Register#1 and #2.
Second, the CPU send a Latch Signal to the Thermal Printer. Then, the Data of both Shift Register#1 and #2
(256*2=512 Bits) are moved to the Latch Register. After that, the CPU sends a Strobe Signal to the Thermal
Printer. Then, the Printer outputs the Serial Data. Each Strobe Signal manages the Printer Dot.
STB No.
STB1
STB2
DOT No.
1 ~ 256
257 ~ 512
DOTs/STB
256
256
SRP-350plus Strobe Processing
The content of data is same.
[Figure 4-13 Thermal Printer Block Diagram]
256 CLK
CLK
DATA#1,2
256bits
256bits
256bits
/LATCH
Printing(1~256)
Printing(1~256)
STROBE1
Printing(257~512)
STROBE2
[Figure 4-14 Thermal Printer Timing Waveform]
Rev. 2.01
- 40 -
SRP-350/352plusA&C
5. Disassembly and Assembly
5-1 Case lower block
1.Remove the three screw.
1 Scrw (3x8)
2.Sparate the BRKT Dip switch,
2 Brkt Dip Switch
4 Foot Rubber
Case lower, Foot-Rubber from the Printer.
3 Case Lower
1.Remove the connector wires
from main PBA and sub Assembly.
Rev. 2.01
- 41 -
SRP-350/352plusA&C
8 Screw
1.Remove the Screws form the BRKT PBA.
2.Separate the BRKT Interface.
1 Screw (3x6)
2 Brkt PCB
Screw
8
4 Screw
3.Remove the two screws.
4.Separate the BRKT Interface from
the I/F PBA Assembly.
5.Separate the I/F PBA from the Main PBA.
6.Remove the four screws.
6 Main PCB
7.Seperate the Main PBA form the
3 Brkt Serial
(Parallel, 485)
BRKT PCB.
5 PCB Serial
(Parallel, 485)
7 Screw (3x6)
1.Separate the Cover cable from
1 Case Lower
2 Cover Cabel
Rev. 2.01
- 42 -
Case lower.
SRP-350/352plusA&C
5-2 Case Upper block
1.Push the button to open the Cove Open.
2.Remove the four screws.
3.Separate the Cover open.
4.Separate the Cover cutter.
5.Remove the screws.
1.Remove the two screws.
2.Lift the Case upper in the direction
of an arrow during pushing the
Push button.
3.Remove the three screws.
4.Separate the Manual cutter from
the Case upper.
Rev. 2.01
- 43 -
SRP-350/352plusA&C
1.Remove the E-Ring.
2.Separate the Spring tension, the
Shaft hinge and the E-Ring.
3.Remove the E-Ring.
4.Separate the Bushing and the
Roller Platen Assembly.
1 Spring Hook
1.Remove the Spring Hook, two screws.
2.Separate the BRKT Hook.
2
4 Brkt-Hook
3 Screw (3x4.4)
Rev. 2.01
- 44 -
SRP-350/352plusA&C
1 Screw (3x4)
7 Cover Plate
2 Fixed Cutter
1.Remove the three screws.
2.Separate the Fixed-cutter from
the Cover Housing.
3.Remove the two screws.
4.Separate the Cutter Blade from
Fixed-cutter.
5 Cutter Blade
3 Cover Housing
5.Remove the two screws.
6.Separate the Cover plate from the
Cover housing.
4 Screw (3x4)
6 Screw (3x6)
5-3 Frame block
1.Remove the two screws.
2.Separate the Black Auto cutter
from the Frame main.
Rev. 2.01
- 45 -
SRP-350/352plusA&C
1.Remove the screw.
2.Push the Heat-sink Assembly in
the direction of an arrow and
Separate it.
2 Heatsink Assy
1 Screw
1.Remove the screw.
2.Separate the Plate-ground and
3 Brkt TPH Rear
6 Heat Sink
BRKT TPH Rear.
3.Remover the two screws.
4.Separate the Heat-sink and the
2 Plate ground
Spring TPH.
5.Separate the Connector from the
Heat-sink.
5 Spring TPH
1 Screw (3x4)
4 Screw (3x4)
7
Rev. 2.01
Connector
- 46 -
SRP-350/352plusA&C
1 Screw (3x8)
1.Remove the two screws.
2.Separate the Frame Main from the
2 Frame Main
BRKT PCB.
3.Separate the Power Switch from
the BRKT PCB.
3 Brkt PCB
4 Power Switch
1.Remove the screw, And separate the
3
Frame Main
13
14
5
Control board from the Frame Main.
Plate-Spring
2.Remover the Washer slip.
3.Separate the Lever Release from
Screw (3x8)
the Frame Main.
Lever Release
2
4.Remove the two screws.
Control Board
5.Separate the Button Assembly from
the Frame Main.
6.Push the Button. Then, the Button
4
11
12
1
Washer
Slip
9
Cover Sensor PCB
7
Spring
Release
Button Assy
Guide Button
6
Rev. 2.01
Screw (3x8)
Assembly is separate.
(Internal Spring Release, Guide Button)
Screw (3x8)
10
Screw (3x8)
7.Remover the screw. And separated
the Cover Sensor PCB from the
Frame Main.
8.Remover the screw. And separate
the Plate-Spring from the Frame-
8
Push Button
- 47 -
Main.
SRP-350/352plusA&C
6. Adjustments and Maintenance
6-1 Adjustment
6-1-1 Remaining Roll Paper Adjustment
This sensor is set to the step3 position at the factory. If you find that there is not or too enough paper
remaining on the roll when the near-end sensor is triggered, you can change the setting to the upper or
Lower position as described below.
Note : The factory setting is based on a paper roll core with an outside diameter of 18mm. If you use
a paper roll with a core with an outside diameter of more than 18mm, it is better to change to
the upper position(Rotate the tab at front side) as described below.
1. Open the paper roll cover.
2. Rotate the tab at front or rear Position.
Near end
end sensor
Near
sensortap
tab
Rev. 2.01
- 48 -
SRP-350/352plusA&C
6-1-2 Paper Jam
If the paper jam occur, the Buzzer will beep. If the cover-open can be opened, open the
Cover-open and remove the paper.
If the Cover-open can not be opened, Follow the below.
1. Turn the printer on to make the cutter initialized, and then open the cover-open.
2. In case that the cutter is not initialized, remove the cover-cutter then remove the paper jam
with turning the knob to the arrow direction as shown below picture. You may use a cross
screwdriver to remove the paper jam.
3. After the cutter placed back, and then press the push button to open the cover.
4. Assemble the cover-cutter.
Rev. 2.01
- 49 -
SRP-350/352plusA&C
6-2 Maintenance
Paper dust in the heating elements may lower the print quality.
In this case, clean the print head as follow;
※ Caution: Turn off the printer power before cleaning.
※ Caution: Note that the thermal head (Thermal element and Radiation plate) becomes very hot
during normal operation, creating the danger of burn injury. Be sure to wait for about 10
minutes after turning printer power off before beginning the cleaning.
1. Open the cover-open.
2. Clean the thermal element (the area that looks like it is marked a thin black line) of the thermal head
with a cotton swab moistened with an alcohol solvent. (ethanol, methanol, or IPA)
3. After confirming that the alcohol solvent has been dried up completely, close the cover open.
Radiation plate
Head tip
Spring pin
Print circuit board
Heat sensitive
layer
Connector
Electrode
Resistor
Board
Base
Protective
layer
※ Note: Never touch the thermal element with your hand.
Doing so can damage the thermal element.
※ Note: Do not scratch the printer head.
Rev. 2.01
- 50 -
SRP-350/352plusA&C
7. Troubleshooting
This chapter describes the methods for troubleshooting in this Receipt Printer.
7-1 Power Problem
Power
Problem
Power Out
Ok? On SMPS
N
1. Check the Input/Output Power Cable
2. Replace the Adapter(SMPS)
Y
Power VDR
(+24V) Ok?
N
Y
Power VTPH
(+24V) Ok?
1. Check the Harness of Power S/W
2. Check the related Circuit & Pattern
N
Y
Power
(+7.8V) Ok?
1. Check the TR (Q3,Q4)
2. Check the related Circuit & Pattern
N
Y
Power VCC
(+5V) Ok?
1. Check the Regulation U16 (LM2576S-ADJ)
2. Check the related Circuit & Pattern
N
1. Check the Regulation U2 (BA17805FP-E2)
2. Check the related Circuit & Pattern
Y
Power
(+3.3V) Ok?
N
Y
1. Check the Regulation U3 (BA033FP-E2)
2. Check the related Circuit & Pattern
End
Rev. 2.01
- 51 -
SRP-350/352plusA&C
7-2 System Problem
System
Problem
Reset Signal
Ok?
N
1. Check the IC (U8,ASM811REUSF-T)
2. Check the Reset Pin on Flash Memory and CPU
3. Check the related Circuit & Pattern on PCB
Y
Clock
Signal Ok?
N
1. Check the Frequency (5MHz)
2. Check the related Circuit & Pattern on PCB
Y
Program
Ok?
N
1. Check the Address/Data Line Pattern
2. Check the related Circuit & Pattern on PCB
3. Program download again
Y
SRAM
Ok?
N
1. Check the /CS Signal
2. Check the SRAM
3. Check the Address/Data Pattern
Y
CPU
Ok?
Y
N
1. Check the Main Clock (5MHz)
2. Check the Address/Data Pattern
3. Check the Main PBA
End
Rev. 2.01
- 52 -
SRP-350/352plusA&C
7-3 Panel PBA and Sensor Problem
Panel PBA
Problem
LED
Ok?
N
Y
Feed S/W
Ok?
N
1. Check the Feed S/W Signal on Main PBA
2. Check the Harness
3. Check the related Circuit ,Pattern & Component
Y
Cover Open
S/W Ok?
1. Check the LED Signal from CPU on Main PBA
2. Check the Harness (Signal, VCC, GND)
3. Check the related Circuit, Pattern & Component
4. Replace the Panel PBA
N
1. Check the Cover S/W Signal on Main PBA
2. Check the Harness
3. Check the related Circuit ,Pattern & Component
Y
End
Sensor
Problem
Paper End
Ok?
N
Y
Near End
Ok?
Y
N
1.
2.
3.
4.
Check the Paper End Sensor Signal on Main PBA
Check the related Circuit, Pattern & Component
Check the Harness
Check and Replace the P_End Sensor
1. Check the Near-End Sensor on Main PBA
2. Check the Harness
3. Check and Replace the Micro S/W
End
Rev. 2.01
- 53 -
SRP-350/352plusA&C
7-4 Thermal Printer Head and Feed Motor Problem
Thermal Printer
Head Problem
Control Signal
Ok?
N
1. Check the Control Signal on CPU
(Data / CLK / Latch / Strobe 1, Strobe 2)
2. Check the Harness
3. Check the related Circuit & Pattern
Y
Power VCC
VTPH Ok?
N
1. Refer to the Power Problem
2. Check the Harness
Y
End
Feed Motor
Problem
Feed Motor
Ok?
Y
N
1. Check the Signal (MOT_PHA1,MOT_PHA2) on CPU
2. Check the Current Control Signals (MOT_I01,
MOT_I11,MOT_I02,MOT_I12,/MOT_PS) on CPU
3. Check the Output Signal of U12 (BA6384EFV-E2)
4. Check the Auto Cutter Assembly (Motor, Cutter…)
5. Check the Harness
6. Check the Step Motor and the related
Circuit & Pattern
End
Rev. 2.01
- 54 -
SRP-350/352plusA&C
7-5 Auto Cutter and Drawer Problem
Auto Cutter
Problem
Auto Cutter
OK?
N
1.
2.
3.
4.
Y
Auto Cutter
S/W Ok?
Check the Signal on CPU
Check the Output Signal of U13 (TA8428K)
Check the Harness
Check the Auto Cutter Assembly (Motor, Cutter...)
N
1. Check the Signal on CPU
2. Check the Harness
3. Check the Micro S/W in the Auto Cutter Assembly
Y
End
Drawer
Problem
Drawer Open
Failure?
Y
1. Check the Drawer Connector & Harness
2. Check the Drawer Signals on CPU (P33, P34)
3. Check the related circuit & Component 2SD2170
(Q10, Q11)
4. Check the Solenoid in the Drawer
N
Compulsory
Failure?
N
Y
1. Check the Compulsory Harness & Connector
2. Check the Micro switch in the Drawer
End
Rev. 2.01
- 55 -
SRP-350/352plusA&C
7-6 Dip S/W and I/F PBA Select Problem
Dip Switch
Problem
Dip S/W
Input Ok?
N
Y
1. Check the Output Signal (DIP_A~C)
2. Check the Input Signal (DIP_IN1~IN2)
3. Check the related Circuit & Pattern
End
I/F PBA Select
Problem
I/F PBA
Select Ok?
Y
N
1. Check the Diode on I/F PBA
2. Check the Input Signal (MD0*~MD2*)
3. Check the related Circuit & Pattern
End
Rev. 2.01
- 56 -
SRP-350/352plusA&C
7-7 RS-232C Serial Communication Problem
RS-232C
Problem
Communication
Failure?
Y
N
H/W
Handshake
Y
1. Check the connection of the
RS-232C Connector and Other side
2. Check the I/F Cable whether it is open or short
3. Check the Txd, Rxd Pin on CPU
4. Check the MAX232 Driving Chip and
related Circuit on I/F PBA
5. Check whether Signal is affected by the
Cable Noise
N
1. Check the connection of the H/W handshaking
Line and Other side (DTR/DSR)
2. Check the I/F Cable whether it is open or short
3. Confirm the H/W handshaking Protocol
End
Rev. 2.01
- 57 -
SRP-350/352plusA&C
7-8 IEEE-1284 Parallel Communication Problem
IEEE-1284
Problem
Forward Mode
Failure?
N
Y
1.
2.
3.
4.
5.
Check the Control Line (/CS_P)
Check the 1284 Control Line and Status Line
Check the Signal of ICs (U1,U3,U4,U5)
Check the 1284 Cable whether it is open or shot
Check the related Circuit & Pattern on I/F PBA
End
Rev. 2.01
- 58 -
SRP-350/352plusA&C
7-9 USB2.0 Communication Problem
USB
Problem
Main PBA I/F
Failure?
Y
N
Reverse Mode
Failure?
N
1. Check the Control Line & Signal
(/CS_U,/RD,/LWR,USB_/IRQ)
2. Check the Data Line and Signal
3. Check the Connector (34P)
4. Check the Clock (30MHz)
5. Check the related Circuit & Pattern on Main PBA
Y
1.
2.
3.
4.
Check the Clock (30MHz)
Check the Host whether it works correctly
Check the USB Cable whether it is open or shot
Check the related Circuit & Pattern on Main PBA
End
Rev. 2.01
- 59 -