Intermec EasyCoder 501XP User manual

EasyCoder 501 XP

Bar Code Label Printer

P/N 1-960427-03

Edition 4

November 2000

Service Manual

Intermec EasyCoder 501 XP – Service Manual Ed. 4 1

Chapter 0

0. Introduction

0.1 Contents

0. Introduction

0.1 Contents.....................................................................................................1

0.2 Preface........................................................................................................4

0.3 Notices and Approvals..............................................................................5

1. Models and Options

1.1 Identiﬁ cation..............................................................................................7

1.2 Speciﬁ cations.......................................................................................... 11

1.3 Measures................................................................................................. 13

2. Front and Keyboard

2.1 Front........................................................................................................ 14

2.2 Keyboard/Display................................................................................... 14

2.3 Components ........................................................................................... 17

2.4 Schematics.............................................................................................. 18

3. Hatches and Doors

3.1 Right-Hand Door.................................................................................... 19

3.2 Front Hatch............................................................................................. 20

3.3 Left-Hand Cover..................................................................................... 21

4. Chassis

4.1 Description.............................................................................................. 22

4.2 Center Section......................................................................................... 22

4.3 Bottom Plate........................................................................................... 23

4.4 Rear Plate................................................................................................ 23

5. Media Supply

5.1 Internal Supply ....................................................................................... 25

5.2 External Supply...................................................................................... 27

6. Label Slack Absorber

6.1 Description.............................................................................................. 30

6.2 Dismantling............................................................................................. 31

7. Transfer Ribbon Mechanism

7.1 Description.............................................................................................. 32

7.2 Ribbon Supply Unit ............................................................................... 33

7.3 Ribbon Rewind Unit .............................................................................. 35

7.4 Ribbon End Sensor................................................................................. 37

8. Print Unit

8.1 Description.............................................................................................. 39

8.2 Platen Roller ........................................................................................... 42

8.3 Stepper Motor.........................................................................................43

8.4 Belts......................................................................................................... 46

8.5 Belt Adjustments .................................................................................... 48

8.6 Label Stop Sensor................................................................................... 50

8.7 Printhead................................................................................................. 56

8.8 Headlift Sensor....................................................................................... 61

8.9 Headlift Mechanism............................................................................... 63

8.10 Ribbon Assist Roller .............................................................................. 66

8.11 Media Feed Principles............................................................................ 68

9. Liner/Batch Takeup Kit

9.1 Description.............................................................................................. 70

9.2 Main Parts............................................................................................... 72

9.3 Liner/Batch Takeup Unit........................................................................ 73

Intermec EasyCoder 501 XP

Service Manual

Edition 4, November 2000

Part No. 1-960427-03

Intermec EasyCoder 501 XP – Service Manual Ed. 4

2

Chapter 0 Introduction

10. Label-Taken Sensor

10.1 Description.............................................................................................. 74

10.2 Installation...............................................................................................75

10.3 Adjustments............................................................................................ 77

11. Paper Cutter

11.1 Description.............................................................................................. 78

11.2 Control .................................................................................................... 79

11.3 Cleaning.................................................................................................. 79

11.4 Installation...............................................................................................80

11.5 Spring Replacement............................................................................... 81

12. Ribbon Low Sensor

12.1 Description.............................................................................................. 82

12.2 Installation...............................................................................................83

13. Electronics Compartment

13.1 Introduction............................................................................................. 84

13.2 Accessing the Electronics Compartment.............................................. 84

13.3 Main Parts............................................................................................... 85

14. Power Supply

14.1 Description.............................................................................................. 86

14.2 Components............................................................................................ 88

14.3 Schematics.............................................................................................. 90

15. CPU Board

15.1 Description.............................................................................................. 92

15.2 Circuits and Straps.................................................................................. 93

15.3 Connectors.............................................................................................. 97

15.4 Special Devices....................................................................................... 98

15.5 Test Points............................................................................................. 101

15.6 Startup...................................................................................................102

15.7 Components..........................................................................................103

15.8 Schematics............................................................................................ 104

16. Interfaces

16.1 Introduction...........................................................................................111

16.2 Serial Communication Port "uart1:" ................................................... 112

16.3 Parallel Interface "centronics:"............................................................ 113

16.4 Fitting an Interface Board....................................................................115

16.5 Industrial Interface Board .................................................................... 117

16.6 Double Serial Interface Board.............................................................127

16.7 EasyLAN 100i Interface Board........................................................... 137

17. Troubleshooting

17.1 Diagnosing the Printer.......................................................................... 142

17.2 No Reaction at Power Up.................................................................... 144

17.3 Printer Stops Working after Startup .................................................... 145

17.4 CPU Board Failures.............................................................................146

17.5 Power Supply Unit Failures.................................................................147

17.6 Console Errors......................................................................................148

17.7 Error Messages.....................................................................................149

17.8 No Communication (general)..............................................................150

17.9 No Serial Communication...................................................................151

17.10 No Parallel Communication................................................................152

17.11 Sensor Malfunctions............................................................................. 153

- Label Stop Sensor (LSS) ..................................................................153

- Headlift Sensor................................................................................... 153

- Ribbon End Sensor............................................................................ 154

- Ribbon Low Sensor...........................................................................154

- Label Taken Sensor (LTS).................................................................155

0.1 Contents, cont.

Intermec EasyCoder 501 XP – Service Manual Ed. 4 3

Chapter 0 Introduction

0.1 Contents, cont.

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

ment on the part of Intermec Printer AB.

EasyCoder, EasyLAN, Fingerprint, and LabelShop are registered trademarks of Intermec Technologies

Corp.

Centronics is a registered trademark of Centronics Data Computer Corp.

Microsoft is a registered trademark of Microsoft Corporation.

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

TrueDoc is a trademark of Bitstream, Inc.

TrueType is a trademark of Apple Computer Inc.

Unicode is a trademark of Unicode Inc.

Windows is a trademark of Microsoft Corporation.

17. Troubleshooting, cont.

17.12 Printing Troubles..................................................................................156

- No printout at all ................................................................................156

- Overall weak printout........................................................................157

- Weaker printout on one side.............................................................. 157

- Overall too dark printout ................................................................... 157

- Weak or missing printout of some dots ............................................ 158

- Unexpected black printout.................................................................158

- Only ﬁ rst part of label printed...........................................................158

- Media feed does not work properly.................................................. 159

17.13 Transfer Ribbon Troubles....................................................................160

- Transfer ribbon gets wrinkled ...........................................................160

- Transfer ribbon breaks....................................................................... 160

17.14 Liner/Batch Takeup Troubles .............................................................. 161

17.15 Cutter Troubles.....................................................................................162

17.16 Memory Card Troubles........................................................................163

Appendix 1

Intermec Shell 4.4 Overview............................................................................ 164

EasyCoder 501 XP: Setup Mode Overview, Part 1........................................165

EasyCoder 501 XP: Setup Mode Overview, Part 2........................................166

EasyCoder 501 XP: Setup Mode Overview, Part 3........................................167

EasyCoder 501 XP: Setup Mode Overview, Part 4........................................168

EasyCoder 501 XP: Setup Mode Overview, Part 5........................................169

Appendix 2

Measuring the Break Torque............................................................................170

Intermec EasyCoder 501 XP – Service Manual Ed. 4

4

Chapter 0 Introduction

This Service Manual is intended to facilitate installation, trouble-

shooting and repair of the Intermec EasyCoder 501 XP in the

version delivered at the date of publishing. Thus, all information

on the Intermec Fingerprint ﬁ rmware is based on version 7.40.

The on-going product improvement can be followed in the Printer

Technical Bulletins from Intermec.

This Service Manual is supplemented by the following publica-

tions, which the service technician also should keep easily avail-

able:

• Intermec EasyCoder 501 XP; User’s Guide (multilingual)

• Intermec EasyCoder 501 XP; Installation & Operation manual

• Intermec EasyCoder 501 XP; Spare Parts Catalogue

• Intermec EasyCoder 501 XP; Installation Instructions

(for various options)

• Intermec Direct Protocol 7.xx; Programmer’s Guide

• Intermec Fingerprint 7.xx; Programmer’s Guide

• Intermec Fingerprint 7.xx; Reference Manual

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 up to 380 VAC, 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 Intermec 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.

0.2 Preface

Intermec EasyCoder 501 XP – Service Manual Ed. 4 5

Chapter 0 Introduction

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.

0.3 Notices and Approvals

Intermec EasyCoder 501 XP – Service Manual Ed. 4

6

Chapter 0 Introduction

0.3 Notices and Approvals, cont.

Declaration of Conformity

We,

Intermec Printer AB

Idrottsvägen 10

Box 123

S-431 22 Mölndal

Sweden

declare under our sole responsibility

1

that the product

EasyCoder 501 XP

to which this declaration relates

is in conformity with the following standards

Electrical Safety: EN 60950

EMC Emissions: EN 50081-1:92

(EN 55022:94, EN 61000-3-2:95)

EMC Immunity: EN 50082-2:95

(EN 61000-4-2:95; EN 61000-4-3:96; ENV 50204:95;

EN 61000-4-4:95; EN 61000-4-6:96)

following the provisions of Directives

89/336/EEC and 73/23/EEC

Mölndal 1998-09-01

...................................................................

Mats Gunnarssom

President

1

/. Intermec assumes no responsibility regarding the CE Directive if the printer is

handled, modiﬁ ed, or installed in other manners than those described in the manuals.

Intermec EasyCoder 501 XP – Service Manual Ed. 4 7

Chapter 1

1. Models and Options

1.1 Identiﬁ cation

The EasyCoder 501 XP only comes in one main model: a com-

bined direct thermal/thermal transfer printer with a setup keyboard

and a 12 dots/mm printhead.

The printer can use any 100 to 240 VAC, 50 to 60 Hz voltage.

There is no voltage switch-over.

The machine label on the printer’s rear plate contains type, part

number, serial number, and signs of approval.

Machine Label

Intermec EasyCoder 501 XP – Service Manual Ed. 4

8

Chapter 1 Models and Options

The EasyCoder 501 XP can be ﬁ tted with a number of built-in

options:

• Paper Cutter (see Chapter 11)

• Label Taken Sensor (see Chapter 10)

• Liner/Batch Takeup Unit (see Chapter 9)

• Media Roll Retainer (see Chapter 5)

• Fan-Fold Guides Kit (see Chapter 5)

• Ribbon Low Sensor (see Chapter 12)

1.1 Identiﬁ cation, cont.

Paper Cutter

Label Taken Sensor

Liner/Batch Takeup Unit

Media Roll Retainer

Fan-Fold Guides

Ribbon Low Sensor

Intermec EasyCoder 501 XP – Service Manual Ed. 4 9

Chapter 1 Models and Options

The printer is as standard provided with one serial RS-232 port

and one parallel Centronics port. In addition, one extra interface

board can be ﬁ tted, see Chapter 16.

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

do so, carefully follow the instructions in Chapter 13.

CAUTION!

Always turn off the power and remove the power

cord before opening the cover over the electronics

compartment! Dangerous voltage!

In the electronics compartment, check:

• Type of CPU board?

- Check number of Flash SIMMs.

- Check number and size of DRAM SIMMs.

• Any optional interface board ﬁ tted?

- Check type, straps, and optional circuits.

Refer to Chapters 15 and 16 for more information.

Serial Port

RS-232

Parallel Port

Centronics

Provision for

one interface board

1.1 Identiﬁ cation, cont.

Intermec EasyCoder 501 XP – Service Manual Ed. 4

10

Chapter 1 Models and Options

If the printer is working and possible startup program can be inter-

rupted, the type of program in the printer can be identiﬁ ed. Connect

printer and computer, open a suitable communication program, and

start up the printer in Fingerprint's immediate mode. The instruc-

tion FILES allows you to check what ﬁ les 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 Intermec Finger-

print ﬁ rmware.

You can read the setup in the Setup Mode or by means of Intermec

Shell, which also allows you to print test label #5 containing the

present setup values. To enter Shell if a custom-made autoexec-ﬁ le

prevents access, lift the printhead and press any key on the printer's

keyboard (except the <Shift> key), then turn on the power while

continuing to press the key. When the Shell countdown begins,

release the key and press <Enter> to start Shell. Do not forget to

lower the printhead if you want to print for example test labels.

Refer to the Installation & Operation manual and to Appendix 1 in

this Service Manual for more information on the Setup Mode and

the Intermec Shell startup program.

If the printer still does not work, you may 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 fea-

tures and options on the next page.

1.1 Identiﬁ cation, cont.

Intermec EasyCoder 501 XP – Service Manual Ed. 4 11

Chapter 1 Models and Options

1.2 Speciﬁ cations

Printing

Print Technique Direct Thermal & Thermal Transfer

Printhead Resolution 12 dots/mm (304.8 dots/inch)

Print Speed (variable) 100 to 300 mm/sec (4 to 12 inches/sec)

Print Width (max) 106.6 mm (4.20 inches)

Media Width (max/min) 120 mm (4.72 inches)/25.4 mm (1.00 inch)

Print Length (max) 32,767 dots = 2,730 mm/107.5 inches

1

Internal Media Roll Diameter (max) 205 mm (8 inches)

Media Roll Core Diameter 38 to 40 mm (1.5 inches) or 76 mm (3 inches)

Ribbon Length (max) 450 metres (1475 feet)

Ribbon Width (max) 110 mm (4.33 inches)

Print Directions 4

Modes of Operation

Tear Off Yes

Peel Off Optional With internal takeup unit

Internal Liner/Batch Takeup Optional With internal takeup unit

Cut Off Optional With cutter

Firmware

Operating System Fingerprint 7.40 incl. Intermec Direct Protocol

Smooth Fonts TrueDoc and TrueType fonts

Built-in scalable fonts (std) 15 Unicode fonts

2

Built-in bar code symbologies (std) 36

Startup Program (std) Intermec Shell v. 4.4

Physical Measures

Dimensions (W x D x H) 275 x 480 x 238 mm (10.8 x 18.9 x 9.4 inches)

Weight (excluding media & options) 13 kg (28.7 pounds)

Ambient Operating Temperature +5°C to +40°C (+41°F to +104°F)

Humidity 20 to 80% non-condensing

Electronics

Microprocessor 32 bit RISC

On-board Flash SIMMs 1 to 3 (2 or 4MB each) Std. 1 x 2MB

On-board DRAM SIMMs 1 to 2 (1 x 4MB + 1 x ≤ 32MB) Std. 1 x 4MB

Real-Time Clock Yes 10+ years life

Power Supply

Mains Voltage >90 to <264 VAC, 45 to 65 Hz

PFC Regulation IEC 61000-3-2

Maximum Power Consumption Continuous 175W; Peek ≈ 400W

Intermec EasyCoder 501 XP – Service Manual Ed. 4

12

Chapter 1 Models and Options

Sensors

Label Gap/Black Mark/Out of Paper Yes

Out of Ribbon Yes

Printhead Lifted Yes

Ribbon Low Option

Label Taken Option

Controls

Control Lamps 3

Display 2 x 16 character LCD w. background light

Keyboard 23 keys membrane-switch type

Beeper Yes

Data Interfaces

Serial 1 x RS-232

Parallel 1 x Centronics Parallel

Cutter Yes

Bar Code Wand Yes For printer setup

Electronic Keys 2

Optional Interface Boards 1 Various types

Memory Card Adapter 1 Flash or SRAM card

Accessories

Automatic Paper Cutter Option

Liner/Batch Takeup Unit Option (factory installed only) For peel-off/rewind

Label Roll Retainer Option

Fan-Fold Guides Kit Option For external supply

RS-232 Cable Option

Centronics Cable Option

EasySet Bar Code Wand Option For quick setup

Double Serial Interface Board Option

EasyLAN 100i Interface Board Option Ethernet

Industrial Interface Board Option

External Alphanumeric Keyboard Option

Flash Memory Cards Option ≤ 64Mbit (8MB)

Electronic Keys Option

1

/. The maximum print length is also restricted by the amount of free DRAM memory.

2

/. Latin, Greek, and Cyrillic fonts according to Unicode standard are included.

1.2 Speciﬁ cations, cont.

Intermec EasyCoder 501 XP – Service Manual Ed. 4 13

Chapter 1 Models and Options

1.3 Measures

201 mm (7.91")

238 mm

(9.37")

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

79 mm

(3.11")

363 mm (14.29")

481.5 mm (18.96")

R 139 m

m

(5.47")

20 mm

(0.79")

20 mm

(0.79")

30 mm

(1.18")

186 mm

(7.32")

12 mm

(0.47")

37 mm

(1.46")

Paper slot

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

At least 90 mm (3.5 inches) of free space behind the printer is required for the connectors,

and for inserting and removing a memory card.

Intermec EasyCoder 501 XP – Service Manual Ed. 4

14

Chapter 2

2. Front and Keyboard

The moulded front part is attached to the center section 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 connec-

tor (4-pin female DIN-type) and a slot, that in other printer models

using the same front gives access to a memory card adapter.

Note that the memory card adapter in EasyCoder 501 XP is ﬁ tted

on the CPU board and is accessible through a slot in the rear

plate!

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

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

2 mm hexagon grub screws underneath the keyboard part of the

front moulding.

The keyboard/display assy. is connected to P37 at the front of the

CPU board via a 10-p ﬂ at 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 brack-

ets.

We also recommend you to remove the left-hand cover before you

start to ﬁ t the keyboard/display assy. back into the front moulding,

since it makes it easier to align the brackets with the grub screws.

2.1 Front

Keyboard/Display assy.

Provision for

Cutter Connection

Front Moulding

Not used!

2.2 Keyboard/Display

Intermec EasyCoder 501 XP – Service Manual Ed. 4 15

Chapter 2 Front and Keyboard

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

a self-adhesive membrane switch keyboard, an self-adhesive over-

lay, and a console pcb. The membrane switch keyboard is con-

nected to P2 on the console pcb. via a semi-transparent cable

running through a slot in the plate.

Keyboard Overlay

The keyboard overlay is self-adhesive with a non-permanent adhe-

sive to allow easy replacement. Custom-made overlays could also

be printed and used to replace the standard overlays for custom-

ized applications or in areas, where the English text is not accept-

able. Pulling away an overlay and replacing it with another is a

simple operation that the customer easily can perform himself. Use

isopropyl alcohol to remove any adhesive residue.

Keyboard

The keyboard is of membrane switch type and is glued to the key-

board plate. There are 54 switches, but only 23 of these are used

in EasyCoder 501 XP. One switch is a Shift key, that provides a

dual functionality to each of the other keys. A resistor ladder gives

different voltages from each line and column on the keyboard so

the slave processor on the console pcb can decode signals from the

various switches (keys) by means of an A/D converter.

Keyboard Plate

The keyboard plate keeps the assembly together and to afﬁ x it in

the cavity of the front moulding. There are one slot for the display

and another for the cable running from the membrane-switch key-

board to the console pcb. Two brackets at the lower edge are used

to connect the plate to the front moulding using two 2 mm hexagon

grub screws.

2.2 Keyboard/Display,

cont.

Console pcb.

Keyboard Plate

Membrane-switch Keyboard

Overlay

Intermec EasyCoder 501 XP – Service Manual Ed. 4

16

Chapter 2 Front and Keyboard

Console pcb

The console pcb manages the keyboard, the display, two of the

three LED control lamps, and the beeper by means of a slave pro-

cessor. The communication to and from the CPU board goes via

an I2C bus on a 10-p ﬂ at cable. This cable is permanently afﬁ xed

to the console pcb and connected to P37 a the front end of the CPU

board.

The display is a LCD display with background light. It has 2 × 16

character with a 5 × 7 dots matrix. 8 characters are programmable.

There is no display contrast adjustment.

The beeper has a frequency between 104 and 9,999 Hz. It is used

to acknowledge when a key is pressed and to produce various

audible signals. The key-acknowledge signal can be controlled by

the Fingerprint instruction KEY BEEP, whereas other signals are

controlled using the instructions BEEP and SOUND.

The left-hand LED control lamp (marked “Power”) shines green

when the power is on. Power on is also indicated by the display's

background light. The other two LEDs are programmable using the

Fingerprint instructions LED ON and LED OFF. The center LED

is green and the right-hand is red. The right-hand LED (marked

“Error”) is usually used to indicate that an error has occurred.

2.2 Keyboard/Display,

cont.

Error LED (red)

Ready LED (green)

Power On LED (green)

LCD Display

Keyboard Connection

Beeper

Slave Processor

Cable to CPU Board

Intermec EasyCoder 501 XP – Service Manual Ed. 4 17

Chapter 2 Front and Keyboard

2.3 Components

1-971604-27 Console pcb.

Component Side

Soldering Side

Test Points:

+5C C14 Lower soldering

GND C14 Upper soldering

D2

D3D4

DISPLAY

1-971704-01

B1

C1

C2

C3

C4

C5

C6

C7

C8

C9

C10

C11

C12

C13

C14

C15

C16

D1

IC1

IC2

IC3

P1

P2

R1R2 R3

R4

R5

R6

R7

R8

R9

R10

R11

R12

R13

R14

R15

R16

R17

R18

R19

R20

R21

R22

R23

R24

R25

R26

R27

R28

R29

X1

1-971604-01 P01

P1

Intermec EasyCoder 501 XP – Service Manual Ed. 4

18

Chapter 2 Front and Keyboard

2.4 Schematics

1-971604-27 Console pcb.

VCC

GND

PB0

PB1

PB2

PB3

PB4

PB5

PB6/ATIn

PB7/ATOut

PC0/Ain

PC1/Tin/Ain

PC2/Sin/Ain

PC3/Sout/Ain

PC4/SCK/Ain

Ain/PA0

Ain/PA1

Ain/PA2

Ain/PA3

Ain/PA4

Ain/PA5

Ain/PA6

Ain/PA7

NMI

RESET

OSCout

OSCin

TEST

GNDGND

GND

D0

D1

D2

D3

D4

D5

D6

D7

VCC

GND

VDISP

R/W

E

RS

AB

CA

VCC

CA

VCC

GND

PRE

D

CLK

CLR

Q

VCC

PRE

D

CLK

CLR

Q

GND

VCC

GND

VCC

CA

GND

GND GND GND GND

VCC

GND

VCC

GND

VCC

GND

1

2

4

5

6

7

8

9

28

27

26

25

24

10

13

14

15

16

17

18

19

23

22

21

20

3

1

3

5

6

4

7

8

9

10

11

12

13

14

2

15 16

1

2

3

4

5

6

7

8

9

10

216

5

1

3

2

4

43

8

9

13

11

12

1065

89

1

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Beeper

ST6265

IC1

X1

8MHz

C3C2

DISPLAYDISPLAY

P1

RED

D3

GREEN

D2

R1

R2

C1

74HC05

IC3A

74HC74

IC2A

R9

74HC05

IC3B

74HC74

IC2B

74HC05

IC3C

R8

R4

74HC05

IC3D

B1

R5

R3

GREEN

D4

C12

C13 C14 C15

R10

D1

R21R23R25

R20R22R24

C10

C9

C7

C8

C5

C6

C4

R26

R17

R16

R15

R14

R13

R12

R18

R11

KEYBOARD

P2

R19

R7R6

R27

R28

C16

C11

R29

INT

SCL

SDA

RESET

Intermec EasyCoder 501 XP – Service Manual Ed. 4 19

Chapter 3

3. Hatches and Doors

3.1 Right-Hand Door

The right-hand door gives access to:

• The media supply

• The ribbon supply

• The print mechanism

The right-hand door is ﬁ tted 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 becomes disengaged.

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

media and transfer ribbon.

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 ﬁ tted to the bottom plate, may require adjust-

ment 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

Label

Hinges

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Intermec EasyCoder 501XP User manual

Intermec EasyCoder 501XP User manual

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