EasyCoder 501XP

Intermec EasyCoder 501XP User manual

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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.
© Copyright Intermec Printer AB 2000. All rights reserved. Published in Sweden.
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 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 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; Users 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; Programmers Guide
Intermec Fingerprint 7.xx; Programmers 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 printers 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 Identi 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 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 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 Identi 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 identi 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 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 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- 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 Identi cation, cont.
Intermec EasyCoder 501 XP Service Manual Ed. 4 11
Chapter 1 Models and Options
1.2 Speci 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 Speci 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
Paper slot
An optional paper cutter increases the printers 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 af 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 at cable. This cable is permanently af 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
P1
Intermec EasyCoder 501 XP Service Manual Ed. 4
18
Chapter 2 Front and Keyboard
2.4 Schematics
1-971604-27 Console pcb.
VCC
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
GND
GND
GND
PRE
D
CLK
CLR
Q
Q
VCC
PRE
D
CLK
CLR
Q
Q
GND
VCC
GND
VCC
CA
GND
GND GND GND GND
VCC
GND
VCC
GND
GND
VCC
VCC
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
/