UBI EasyCoder 501 SA User manual

UBI EasyCoder 501 – Service Manual

1

0. INTRODUCTION

UBI EasyCoder 501

Service Manual

Edition 5, May 1997

Article No. 1-960320-04

0.1 Contents

Continued!

0. Introduction 0.1 Contents ..........................................................................................1

0.2 Preface ............................................................................................5

0.3 Notices and Approvals ....................................................................6

1. Models and Options 1.1 Identification ...................................................................................7

1.2 Specifications ................................................................................13

1.3 Measures .......................................................................................14

2. Front and Keyboard 2.1 Front .............................................................................................15

2.2 Display/Keyboard .........................................................................16

2.3 Display Contrast Adjustment.........................................................16

2.4 Slides ............................................................................................17

2.5 Keyboard Interface Board; Components Diagram .........................18

2.6 Keyboard Interface Board; Circuit Diagram ..................................19

3. Hatches and Doors 3.1 Right-Hand Door ..........................................................................20

3.2 Front Hatch ...................................................................................21

3.3 Left-Hand Cover ...........................................................................22

4. Rear Plate 4.1 Description....................................................................................23

4.2 Devices on Rear Plate ...................................................................24

5. Paper Supply 5.1 Internal Supply ..............................................................................25

5.2 External Supply.............................................................................28

6. Label Slack Absorber 6.1 Description....................................................................................33

6.2 Dismantling...................................................................................34

7. Transfer Ribbon Mechanism 7.1 Description....................................................................................35

7.2 Ribbon Unwind Unit .....................................................................35

7.3 Ribbon Rewind Unit .....................................................................37

7.4 Ribbon End Sensor........................................................................39

8. Print Unit 8.1 Different Models ...........................................................................41

8.2 Main Parts .....................................................................................41

8.3 Pressing Roller ..............................................................................43

8.4 Stepper Motor ...............................................................................44

8.5 Tear-Off Edge ...............................................................................46

8.6 Label Stop Sensor (LSS) ...............................................................47

8.7 Printhead .......................................................................................50

8.8 Headlift Mechanism ......................................................................58

9. Paper Rewind Kit 9.1 Description....................................................................................61

9.2 Main Parts .....................................................................................63

9.3 Paper Rewind Unit ........................................................................64

10. Ribbon Save Device 10.1 Working Principles........................................................................65

10.2 Control ..........................................................................................66

10.3 Maintenance..................................................................................66

10.4 Transfer Ribbons...........................................................................67

10.5 Main Parts .....................................................................................67

10.6 Print Unit Assy..............................................................................68

10.7 Headlift Mechanism ......................................................................77

10.8 Ribbon Rewind .............................................................................80

10.9 Connection Board .........................................................................81

UBI EasyCoder 501 – Service Manual

2

0.1 Contents, cont'd.

0. INTRODUCTION, cont'd

Continued!

11. Label-Taken Sensor 11.1 Description....................................................................................83

11.2 Installation ....................................................................................84

11.3 Adjustments ..................................................................................86

12. Paper Cutter 12.1 Description....................................................................................87

12.2 Control ..........................................................................................88

12.3 Cleaning........................................................................................88

12.4 Installation ....................................................................................89

12.5 Spring Replacement ......................................................................90

13. Memory Card Adapter 13.1 Description....................................................................................91

13.2 Installation ....................................................................................96

13.3 Memory Card Types .....................................................................98

13.4 Inserting a Memory Card ..............................................................99

13.5 Removing a Memory Card ............................................................99

14. Sensor Kit 14.1 Description..................................................................................100

14.2 Installation ..................................................................................101

15. Scalable Fonts Kit 15.1 Description..................................................................................102

15.2 Installation ..................................................................................103

16. Transformer Unit 16.1 Description..................................................................................104

16.2 Dismantling................................................................................. 105

16.3 Mains Connection Diagram.........................................................106

16.4 Wiring Diagram ..........................................................................106

17. CPU Board 17.1 Access to CPU Board ..................................................................108

17.2 Overview .................................................................................... 109

17.3 Circuits and Straps ...................................................................... 111

17.4 Connections ................................................................................118

17.5 Components Diagram..................................................................119

17.6 Circuit Diagrams:

1. CG16 Master Processor ...........................................................120

2. A/D and I/O Circuits ...............................................................121

3. Interfaces to Printer Devices ....................................................122

4. Data Shiftout to Printhead........................................................123

5. HPC Slave Processor...............................................................124

6. Stepper Motor Drives ..............................................................125

7. ROM Memory......................................................................... 126

8. RAM Memory......................................................................... 127

9. "uart1:" Interface Circuits ........................................................128

10. Sensor Interfaces ...................................................................129

11. Data to Printhead ...................................................................130

12. Power to Printhead ................................................................131

13. Power ....................................................................................132

17.7 Test Points ..................................................................................133

1. ADS ........................................................................................133

2. NHOLD ..................................................................................133

3. VEE ........................................................................................133

4. /RESET ...................................................................................133

5. P24.......................................................................................... 133

6. V24 ......................................................................................... 133

7. +40V .......................................................................................133

17.8 Testing the CPU Board ...............................................................134

UBI EasyCoder 501 – Service Manual

3

0.1 Contents, cont'd.

Continued!

0. INTRODUCTION, cont'd

18. "UART1:" 18.1 Connector and Cables..................................................................135

18.2 RS 232C......................................................................................136

18.3 RS 422 ........................................................................................138

18.4 20 mA Current Loop ...................................................................140

19. Optional Interface Boards 19.1 Description..................................................................................143

19.2 Installation ..................................................................................144

20. Serial Interface Board 20.1 Description..................................................................................145

20.2 Straps ..........................................................................................146

20.3 Connector Configuration .............................................................147

20.4 Components Diagram..................................................................148

20.5 Circuit Diagrams .........................................................................149

21. RS 422/485 Interface Board 21.1 Description..................................................................................151

21.2 Straps ..........................................................................................153

21.3 Connector Configuration .............................................................155

21.4 Components Diagram..................................................................156

21.5 Circuit Diagram ..........................................................................157

22. Parallel Interface Board 22.1 Description..................................................................................158

22.2 Straps ..........................................................................................159

22.3 Connector Configuration .............................................................160

22.4 Components Diagram..................................................................161

22.5 Circuit Diagram ..........................................................................162

23. Industrial Interface Board 23.1 Description..................................................................................163

23.2 Straps ..........................................................................................164

23.3 Connector Configuration .............................................................165

23.4 Components Diagram..................................................................166

23.5 Circuit Diagrams .........................................................................167

24. Print Quality Adjustment 24.1 Test Labels ..................................................................................169

24.2 Possible Printout Troubles ...........................................................172

24.3 Mechanical Adjustments .............................................................173

25. Test Mode 25.1 Description..................................................................................178

25.2 EasyCoder/EasyPak 501 .............................................................178

25.3 EasyCoder/EasyPak 501, Test Mode Diagram ............................179

25.4 EasyCoder/EasyPak 501 E & SA ................................................180

25.5 EasyCoder/EasyPak 501 E, Test Mode Diagram.........................182

25.6 EasyCoder/EasyPak 501 SA, Test Mode Diagram.......................183

26. Trouble Shooting 26.1 Printer “Dead”.............................................................................184

- Mains power failure ..................................................................184

- Power supply failure .................................................................184

- Transformer and cabling failure ................................................185

- CPU board failure .....................................................................186

26.2 Single Function Failure ...............................................................188

- No display function ...................................................................188

- No keyboard reaction ................................................................188

- Error messages transmitted or displayed....................................189

- No memory backup storage.......................................................190

- No communication (general) .....................................................190

- No communication (standard serial interface) ...........................191

- Label (ticket) gap or black mark not detected ............................192

- Printhead lift sensor out of order ...............................................192

- Ribbon-end sensor out of order .................................................193

UBI EasyCoder 501 – Service Manual

4

0.1 Contents, cont'd.

0. INTRODUCTION, cont'd

26. Trouble Shooting, cont'd. 26.3 Printing Troubles......................................................................... 194

- No printout at all .......................................................................194

- Overall weak printout................................................................195

- Overall too strong printout (bleeding)........................................195

- Weak or missing printout of some dots .....................................195

- All or most dots printed.............................................................196

- Printed line along dot row at startup ..........................................196

- Paper feed does not work .......................................................... 196

26.4 Transfer Ribbon Troubles............................................................ 198

- Transfer ribbon gets wrinkled....................................................198

- Transfer ribbon breaks .............................................................. 198

26.5 Paper Rewind Troubles ...............................................................199

26.6 Ribbon Save Device Troubles .....................................................200

- No transfer ribbon is saved........................................................200

- Transfer ribbon is not properly rewound ...................................200

- Jammed receiving face materials...............................................201

- Ribbon gets wrinkled or bad printout ........................................201

26.7 LTS Troubles .............................................................................. 202

26.8 Real-Time Clock Troubles ..........................................................202

26.9 Cutter Troubles ........................................................................... 203

26.10 Memory Card Adapter Troubles..................................................204

26.11 Sensor Kit Troubles.....................................................................205

26.12 Serial Interface Board Troubles ...................................................206

26.13 RS 422/485 Interface Board Troubles.......................................... 206

26.14 Parallel Interface Board Troubles ................................................207

26.15 Industrial Interface Board Troubles ............................................. 207

Appendix 1 Software Diagrams:

UBI Shell for EasyCoder Printers Without Keyboard..............................208

UBI Shell for EasyCoder Printers With Keyboard ..................................209

EasyCoder 501: Setup Overview ............................................................220

EasyCoder 501 E & SA: Setup Mode Overview, Part 1 ..........................211

EasyCoder 501 E & SA: Setup Mode Overview, Part 2 ..........................212

Appendix 2 Measuring the Break Torque ..................................................................213

Information in this manual is subject to change without prior notice and does not represent a commitment

on the part of UBI Printer AB.

EasyCoder, LabelShop and EasyPak are trademarks of United Barcode Industries.

Bitstream is a registered trademark and Speedo is a trademark of Bitstream, Inc.

Centronics is a registered trademark of Centronics Data Computer Corp.

IBM is a registered trademark of International Business Machines Corporation.

Torx is a registered trademark of Camcar Division of Textron Inc.

TrueType is a trademark of Apple Computer Inc.

Windows is a trademark of Microsoft Corporation.

UBI EasyCoder 501 – Service Manual

5

0.2

Preface

0. INTRODUCTION, cont'd.

This Service Manual is intended to facilitate installation, trouble-

shooting and repair of the UBI EasyCoder 501 series of printers in

the versions delivered at the date of publishing. Earlier versions are

generally not described in this manual, but the on-going product

improvement can be followed in the Printer Technical Bulletins

from UBI PTC AB.

This Service Manual is supplemented by the following types of

publications, which the service technician also should keep easily

available:

• UBI EasyPak; Getting Started (for three different models)

• UBI EasyCoder 501; Operator's Guide (multilingual)

• UBI EasyCoder 501; User's Manual

• UBI Shell Standard and Enhanced; Startup Manuals

• UBI EasyCoder 501; Technical Manual

• UBI EasyCoder 501; Spare Parts & Options

• UBI EasyCoder 501; Installation Instructions

(for various options)

• UBI Direct Protocol; Programmer's Guide

• UBI Fingerprint; Programmer's Guide

• UBI Fingerprint; Reference Manual

• UBI Stand-Alone Concept; Operating Instructions

• UBI Windows Driver; Installation Instructions

Please note that the operations described in this manual only should

be carried out by skilled and authorized personnel with proper

training and full understanding of written English. The printers

contain wires and circuits with 115/230V AC voltage, which

implies the risk of electrical shock. Moving parts may also cause

harm, if incorrectly manipulated.

It is assumed that the reader possesses reasonable skills in mechan-

ics and electronics and is familiar with the UBI Fingerprint

programming language and its related standard application pro-

grams. It is also assumed that the reader has access to the standard

tools of an electronics workshop.

UBI EasyCoder 501 – Service Manual

6

0.3

Notices and Approvals

0. INTRODUCTION, cont'd

FCC Notice

United States of America

WARNING:

This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with

the instructions manual, may cause interference to radio communications. It has been tested and found to comply with the

limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide

reasonable protection against such interference when operated in a commercial environment. Operation of this equipment

in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever

measures may be required to correct the interference.

DOC Notice

Canada

Canadian Dept. of Communication

REGULATIONS COMPLIANCE

(DOC-A)

This digital apparatus does not exceed the class A limits for radio noise emissions from a digital apparatus as set out in

the radio interference regulations of the Canadian Department of Communication.

✳ ✳ ✳

Ministère des Communications du Canada

CONFORMITE DE REGLEMENTS

(DOC-A)

Le présent appareil numérique n´émet pas de bruits radio-électriques dépassant les limites applicables aux appareils

numériques de classe A prescrites dans le règlement sur brouillage radioélectrique édicté par le Ministère des

Communications du Canada.

VDE Notice

Germany

Reparaturen oder sonstige Eingriffe, die sich nicht auf normale Bedienung der Maschine beziehen, dürfen ausschließlich

nur von einem ausgebildeten, zuständigen Fachmann vorgenommen werden.

UBI EasyCoder 501 – Service Manual

7

1.1

Identification

The EasyCoder 501 printers come in three different main models,

which easily can be identified by their external appearance.

EasyCoder 501

has a single Print button on its front panel.

EasyCoder 501 E (Enhanced)

has a setup keyboard with 22 programmable keys.

EasyCoder 501 SA (Stand-Alone)

has a full QWERTY keyboard with additional control keys adapted

for the UBI Stand-Alone program.

Continued!

Print

Power Ready Error

EasyCoder 501

1. MODELS AND OPTIONS

Caps

Ins

Del

4

5

6

Power

Ready

Error

EasyCoder 501 SA

Shift

Z

X

C

V

B

N

M

,

.

Space

A

S

D

F

G

H

J

K

L

+

Clear

0

Enter

Q

W

E

R

T

Y

U

I

O

P

1

2

3

Alt

Pause

Save

Feed

Esc

7

8

9

<

>

[

]

^

;

:

Ö

Ä

Ø

§

@

~

£

'

_

*

?

–

Å

Æ

|

"

#

$

%

&

/

(

)

=

Ü

ß

Ù

É

È

À

Ç

Ñ

µ

Print

F1

F2

F3

F4 F5

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

EasyCoder 501 E

UBI EasyCoder 501 – Service Manual

8

230V

0

MADE IN SWEDEN

Type

Art. No.

Ser. No.

115/230 V 2.6/1.3 A 50–60 Hz

TA

230V

0

MADE IN SWEDEN

Type

Art. No.

Ser. No.

115/230 V 2.6/1.3 A 50–60 Hz

TA

230V

0

MADE IN SWEDEN

Type

Art. No.

Ser. No.

115/230 V 2.6/1.3 A 50–60 Hz

TA

0

230V

MADE IN SWEDEN

Type

Art. No.

Ser. No.

115/230 V 2.6/1.3 A 50–60 Hz

TA

The machine sign on the printer's rear plate provides information on

type, article number and serial number.

The voltage switch indicates the mains voltage for which the printer

is set up (115 or 230 V AC). Always check this switch before

connecting the printer!

You can also detect if the printer is fitted with any optional interface

board by means of the additional connectors on the rear plate:

For further inspection of interfaces, the Electronics compartment

must be opened, as explained later in this chapter.

1. MODELS AND OPTIONS, cont'd.

1.1

Identification, cont'd.

Voltage Switch

2 x DB25:

Serial Interface Board or

RS 485 Interface Board

1 x 36-p Centronics:

Parallel Interface Board

1 x DB25 + 1 x DB15:

Industrial Interface Board

Continued!

Machine Sign

UBI EasyCoder 501 – Service Manual

9

1. MODELS AND OPTIONS, cont'd.

1.1

Identification, cont'd.

Continued!

Open the right-hand door. Here you can easily see if the printer is

fitted with any of the following options or accessories:

• Transfer Ribbon Mechanism (see chapter 7)

• Paper Rewind Kit (see chapter 9)

• Label Slack Absorber or Guide Shaft (see chapter 6)

• Label Rewind Guide (see chapter 8.5)

• Label Roll Retainer (see chapter 5)

• 3" Bobbin Adapter (see chapter 5)

• Ribbon Low/Paper Low Sensors (see chapter 14)

• Ribbon Save Device (see chapter 10)

• Guides for external paper supply (see chapter 5)

The door can be removed for easier access. Push it forward until the

hinges disengage (snap-locked).

IMPORTANT PRINTHEAD AND RIBBON INFORMATION

The use of any thermal transfer ribbons, other than those supplied by UBI, will invalidate

the printhead warranty.

UBI thermal transfer ribbons are engineered specifically for this printhead.

The quality of thermal and thermal transfer media supplies in this printer is also of great importance

for the quality of printing bar codes and a long life of the printhead. UBI has carefully matched the

paper we recommend/provide to the needs of this printer. We therefore strongly advise of using

only UBI recommended/provided supplies to ensure a high quality printing.

TEAR-OFF

Ribbon Save Device

(not illustrated)

Paper Rewind Kit

Thermal Transfer Mechanism

Paper/Ribbon Low Sensors

(not visible)

External Guides

Label Rewind Guide

Label Slack Absorber

(or Guide Shaft)

3" Adapter

Label Roll Retainer

UBI EasyCoder 501 – Service Manual

10

1. MODELS AND OPTIONS, cont'd.

1.1

Identification, cont'd.

Continued!

A Paper Cutter Unit is easily recognized by the extension on the

printer's front, where the cutter replaces the front hatch (see chapter

12).

By opening the front hatch (or the optional cutter unit fitted in its

place), you can check if the printer is fitted with a Memory Card

Adapter (see chapter 13) and/or a Label-Taken Sensor (see chapter

11).

F1 F2 F3 F4 F5

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

EasyCoder 501 E

Paper Cutter Unit

Label-Taken Sensor

Memory Card Adapter

inside

UBI EasyCoder 501 – Service Manual

11

1. MODELS AND OPTIONS, cont'd.

1.1

Identification, cont'd.

Continued!

Finally, you may want to inspect the electronics compartment. To

do so, you will have to remove the left-hand cover plate.

For safety reasons, we recommend that you turn off the printer

and remove the power cord first.

(All high-voltage wires are insulated, but could be damaged and

should therefore be inspected at service).

Using a #T10 Torx screwdriver, remove the four screws at the

bottom of the cover plate and the four screws along the upper edge,

hidden under the right-hand cover.

In the electronics compartment you may check, e.g.:

• Type of CPU-Board fitted?

• UBI Fingerprint EPROM version?

• Configuration EPROM type?

• Optional ROM-expansion EPROMs fitted?

• Correct type of GAL circuits?

• Optional Real-Time Clock circuit (RTC) fitted?

• Type of interface on "uart1:"?

• Optional interface board fitted?

• Type of interface(s) on interface board?

Refer to the descriptions of the CPU-board and the various interface

boards in chapters 17–23.

F1

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

F2

F3

F4

F5

4 Screws (#T10)

UBI EasyCoder 501 – Service Manual

12

1.1

Identification, cont'd.

1. MODELS AND OPTIONS, cont'd.

The printhead density can be checked in two ways:

• Inspect the label stuck onto the outer side of the printhead, which

gives information on part number and date of manufacture.

- 8 dots/mm printheads have part number 1-010010-xx

- 11.81 dots/mm printhead have part number 1-010003-xx.

• If the printer is working, you can print Test Label #1 in either the

Test Mode (see chapter 25), in the Setup Mode (see Appendix 1

or the Technical Manual), or in UBI Shell (see UBI Shell Startup

Manuals.

If the printer is working and possible startup program can be

interrupted, the type of program in the printer can be identified.

Connect printer and computer, open a suitable communication

program, and start up the printer in the UBI Fingerprint's immediate

mode. The instructions FILES "rom:", FILES "ram:" and FILES "card1:"

allows you to check what files the various parts of the printer's

memory contain. The statements FONTS and IMAGES can be used

for the same purpose regarding fonts and images. Use the VERSION$

function to check version of the UBI Fingerprint software.

The UBI Fingerprint utility program PRSETUP.PRG allows you to

view the current setup values on the screen and also to produce a

printout copy. You can also check the setup in the Setup Mode or

Test Mode, or by means of UBI Shell.

If the printer does not work, you can get some clues from the labels

on the EPROM packages. You may also need to interview the user.

By now, you should have a fairly good idea what kind of printer you

will be working with. Compare with the list of standard features and

options on next page.

Label

Art:

Date:

1-010010-92

97-06

UBI EasyCoder 501 – Service Manual

13

1. MODELS AND OPTIONS, cont'd.

1.2

Specifications

COMMON STANDARD FEATURES: All Notes

Print Technique Direct Thermal/Thermal Transfer Option: Direct Thermal only

1

Print Resolution 8 or 11.81 dots/mm (203.2 or 300 dots/inch)

Quick-Mount Printhead Yes

Maximum Print Width (8 /11.81 dots per mm) 104 mm (4.09 ")/108.3 mm (4.26 ")

Maximum Media Width 120 mm (4.7 ")

Maximum Print Length (8 /11.81 dots per mm) 1250 mm (49.2") /833 mm (32.8")

Smooth Fonts Yes, with UBI Toolbox or Scalable Fonts Kit

Print Directions 4

Max. Internal Paper Roll Diameter 205 mm (8.0 inches)

Maximum Ribbon Length 450 m (1476 feet)

Display 2 line x 16 characters, LCD

Dimensions (W x D x H) excl. cutter 275 x 481.5 x 239 mm (10.8 x 19.0 x 9.4 inches)

Weight (excl. paper, ribbon, and options) 15.0 kgs (33 lbs)

Ambient Operating Temperature + 5˚C – + 40˚C (+41˚F – + 104˚F) Applies to printer only, not to media

Humidity 20 – 80% non-condensing Applies to printer only, not to media

Micro processor 32 bit

Firmware UBI Fingerprint Incl. UBI Direct Protocol

On-Board RAM Memory, Standard/Maximum 512 kbytes/2 Mbytes

Label and Ribbon End Sensors Yes

Mains Voltage 115/230 VAC (+10%/-15%), 2.6/1.3 A, 60/50 Hz Selected by means of a switch

Max. Power Consumption 300 W

Sound Emission Level < 60 dB (A)

Communications Interface, Standard 1 x RS232C; prepared for RS422 or 20 mA Current Loop Additional circuits required

2

DIFFERENT STANDARD FEATURES: EasyCoder 501 EasyCoder 501 E EasyCoder 501 SA Notes

Maximum Print Speed 75-100 mm/s (3-4 inch/s) 100-200 mm/s (4-8 inch/s) 100-200 mm/s (4-8 inch/s)

Label Slack Absorber N/A Standard Standard For high speed printing

Keyboard, Built-In Print Key Only 22 Programmable Keys QWERTY w. control keys

Bitmap Fonts, Expandible 4 Times Min. 1, Std. 10 Min. 1, Std. 10 10

Bar Code Generators Depends on S/W version Depends on S/W version 10

Startup Program UBI Shell Standard UBI Shell Enhanced UBI Stand-Alone

COMMON OPTIONS:

Parallel Interface Board

2

Optional Optional Optional 1 x Centronics

Centronics Cable

3

Optional Optional Optional

RS232C Cable

3

Optional Optional Optional

Memory Card Adapter

2

Optional Optional Optional

External RS232C Alphanumeric Keyboard

3

Optional Optional Optional

Peel-Off Device

1

Optional Optional Optional

Internal Rewind of Backing Paper and Labels

1

Optional Optional Optional

Paper Cutter

2

Optional Optional Optional

Label Roll Retainer

3

Optional Optional Optional

Clear Door Panel, for View of Label Roll

2

Optional Optional Optional

UBI LabelShop for Windows

3

Optional Optional Optional Various versions available

OPTIONS FOR DIFFERENT MODELS:

Serial Interface Board

2

N/A Optional Optional 1 x RS 232C + 1 x RS 232C/20 mA CL

RS485 Interface Board

2

N/A Optional Optional 1 x R 422/485 + 1 x RS 232C

Industrial Interface Board

2

N/A Optional Optional 4 In & 4 Out Ports + 1 x RS232C

Real Time Clock (RTC)

2

N/A Optional Standard

Label Taken Sensor

2

N/A Optional Optional

Paper and Ribbon Low Sensors

1

N/A Optional Optional

Ribbon Save Device

1

N/A Optional Optional

Scalable Fonts Kit Optional Optional N/A Scales Speedo and TrueType fonts

Windows Printer Driver (excl. cable)

3

Optional Optional N/A Requires UBI Shell

N/A = Not Available

1

/. Factory-installed only.

2

/. Field-installable kit or factory installed.

3

/. Field-installable kit only.

The table below illustrates the similarities and differences between

the three main models of the EasyCoder 501 family:

UBI EasyCoder 501 – Service Manual

14

1. MODELS AND OPTIONS, cont'd.

1.3

Measures

F1 F2 F3 F4 F5

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

EasyCoder 501 E

200 mm (7.87")

239 mm

(9.41")

R 285 mm

(11.22")

120 mm (4.72")135.4 mm (5.33")

275 mm (10.83")

68.8 mm

(2.71")

Dot No. 0

(8 dots/mm printhead

in right-hand position)

79 mm

(3.11")

363 mm (14.29")

481.5 mm (18.96")

R 139 mm

(5.47")

20 mm

(0.79")

20 mm

(0.79")

30 mm

(1.18")

186 mm

(7.32")

13 mm

(0.51")

38 mm

(1.50")

Paper slot

An optional paper cutter increases the printer's total length by 28 mm (1.1").

UBI EasyCoder 501 – Service Manual

15

2. FRONT AND KEYBOARD

2.1

Front

The moulded front part is attached to the centre-line wall by means

of four #T20 screws and to the bottom plate by two #T20 screws.

The front moulding is provided with holes for mounting a cutter

connector (4-pin female DIN-type) and a memory card adapter.

At the top part of the front moulding, there is a cavity for the

keyboard/display assy. This assembly is affixed by means of two

grub screws which can be loosened using a 2 mm hexagon wrench.

Keyboard/Display assy.

Front Moulding

Provision for

Cutter Connector

Provision for

Memory Card Adapter

Grub Screws

Cutter Connector

(fitted as standard)

UBI EasyCoder 501 – Service Manual

16

2. FRONT AND KEYBOARD, cont'd.

2.2

Display/Keyboard

The keyboard/display assy. is connected to P-603 at the upper right

corner of the CPU-board via a 20-p flat cable. This cable must be

disconnected before the keyboard/display can be removed.

The keyboard/display must be manipulated carefully when it is

lifted out of its cavity. Do not use any force! If the assembly seems

to be stuck, open the right-hand door and remove the left-hand cover

to check that the grub screws do not interfere with the brackets.

We also recommend you to open the right-hand door and remove

the left-hand cover before you start to fit the keyboard/display assy.

back into the front moulding, since it makes it easier to align the

brackets with the grub screws.

The keyboard/display assy. consists of a plate with two brackets, a

self-adhesive keyboard, an interchangeable slide, and a keyboard

interface pcb. with a 2 × 16 character LCD and three LED's. The

keyboard is connected to P-3 on the interface pcb. via a semi-

transparent cable running through a slot in the plate. The cable to the

CPU board is permanently affixed to the interface pcb.

The contrast of the LCD display can be adjusted by means of the

potentiometer WR-1 on the CPU board. The potentiometer can be

accessed via a hole in the rear plate, next to the communication port

"uart1:", see chapter 4.2. The display should be adjusted according

to the prevailing light conditions when viewed from a normal

working position.

2.3

Display Contrast

Adjustment

F1 F2 F3 F4 F5

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

EasyCoder 501 E

Keyboard

Plate

Keyboard Interface pcb.

Slide

UBI EasyCoder 501 – Service Manual

17

2. FRONT AND KEYBOARD, cont'd.

2.4

Slides

The slide can be removed through a slot at the right side of the

keyboard using a small pair of pliers. The slide can be replaced by

another one, e.g. to adapt the printer for a certain language or

application. Presently, there are three different slides with English

text – one for each main model, as shown below.

Print

Power Ready Error

EasyCoder 501

Keyboard of EasyCoder 501

F1 F2 F3 F4 F5

Pause

Setup

Feed

Enter

789

456

123

.0C

Print

Power Ready Error

EasyCoder 501 E

Keyboard of EasyCoder 501 E

Caps Ins Del

4 5 6

Power Ready Error

EasyCoder 501 SA

Shift

Z X C V B N M , .

Space

A S D F G H J K L +

Clear

0

Enter

Q W E R T Y U I O P 1 2 3

Alt Pause Save Feed Esc

7 8 9

<>[ ]^ ; :ÖÄØ

§@~£ ' _ * ? –Å Æ

|"#$%&/()=ÜßÙ

ÉÈÀ

ÇÑµ

Print

Keyboard of EasyCoder 501 SA

UBI EasyCoder 501 – Service Manual

18

2. FRONT AND KEYBOARD, cont'd.

2.5

Keyboard Interface Board;

Components Diagram

040701.01

P2

P1

P4

C1

C3

RN2

C4

+

R7

R4

R5

R6

R9

IC1

C2

IC2

RN1

P3

R3R2R1LED1 LED2 LED3

Keyboard Interface Board 1-040701-26; Components Diagram

Connections:

P-1 Permanently attached cable to

P-2 on CPU Board

P-2 LCD Display (soldered)

P-3 Keyboard

P-4 Provision for separate print key

(presently not used)

UBI EasyCoder 501 – Service Manual

19

2. FRONT AND KEYBOARD, cont'd.

2.6

Keyboard Interface Board;

Circuit Diagram

Keyboard Interface Board 1-040701-26; Circuit Diagram

C4C1C2

IC1

+5V20

GND19

PA0

16ROW04C3

VDISP18

PA1

15ROW13

ECLK17

PA2

14ROW22

RESET

35RESET16

PA3

R8

13ROW31

RD

5RD15

PA4

12ROW440

WR

36WR14

PA5

11ROW539

CS

6CS825513

PA6

10ROW638

A1

8GND12

PA7

9ROW737

A0

9GND11

8COL0

PB0

18A610

7COL1

PB1

19A59

6COL2

PB2AD0

2034DB08

5COL3

PB3AD1

2133DB17

4COL4

PB4AD2

2232DB26

3COL5

PB5AD3

2331DB35

2COL6

PB6AD4

2430DB44

1SHIFT

PB7AD5

2529DB53

P3

AD6

A574HC0428DB62

PC0

14

AD7

27DB71

2345678910PC1

15

1

P1

1213

PC2

16

IC2F

PC3

74HC0417

1RN174HC04

PC4

READY13

1

PC5

65ERROR12

1

+5V1011

PC6

LED1LED2LED3IC2CRS11

IC2E

PC7

74HC04RW10

74HC04

82C55

POWERERRORREADY

1

43

1

89

R3

R1

IC2B

IC2D

74HC04

1

21

R2

IC2A

14DB7

13DB6

12DB5

11DB4

10DB3

9DB2

8DB1

7DB0

3VDISP

6ECLK

4RS

2345678910

5RW

R6

R5

R4

2

1

1RN2

2

P2

R7

1

P4

+5V

UBI EasyCoder 501 – Service Manual

20

3. HATCHES AND DOORS

3.1

Right-Hand Door

The right-hand door gives access to:

• The paper supply

• The ribbon supply

• The print mechanism

The right-hand door is fitted to the bottom plate by means of two

hinges that allow the door to be swung down 180˚ to a vertical

position. The door is kept shut by means of a magnetic lock. The

door can easily be removed from the hinges by pushing it forward

until the snap-lock at the rear hinge disengages.

At the inside of the door, there is a label showing how to load the

paper and the transfer ribbon.

The standard door can be replaced by an optional door provided

with a clear panel for easier view of the ribbon and paper supplies.

The hinges can be adjusted by means of the two pairs of #T10 Torx

screws visible on the outside. Possibly, the other parts of the hinges,

which are fitted to the bottom plate, may require adjustment too.

Shut the door, loosen the screws slightly and align the door with the

front moulding. Tighten the screws and check that the door runs

freely and is kept shut by the magnetic lock.

Magnetic Lock

Hinges

Label

Optional Clear Panel

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UBI EasyCoder 501 SA User manual

UBI EasyCoder 501 SA User manual

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