Seiko DPU-414 User manual

DPU-414
SERIAL THERMAL PRINTER
SERVICE MANUAL
U00100139501
Seiko Instruments Inc.

ii
DPU-414 SERVICE MANUAL
Document Number U00100139501
First Edition December 1996
Second Edition January 2006
Copyright 1996,2006 by Seiko Instruments Inc.
All rights reserved.
Seiko Instruments Inc. (SII) has prepared this manual for use by Sll personnel,
Iicensees, and customers. The information contained herein is the property of Sll and
shall not be reproduced in whole or in part without the prior written approval of SII.
Sll reserves the right to make changes without notice to the specifications and
materi-als contained herein and shall not be responsible for any damages (including
consequential) caused by reliance on the materials presented, including but not
limited to typographical, arithmetic, or listing errors.
Sll is a trademark of Seiko Instruments Inc.

iii
TABLE OF CONTENTS
Section Page
CHAPTER 1
GENERAL SPECIFICATIONS...................................1-1
1.1 PRINTER SPECIFICATIONS ............................................................1-1
1.2 THERMAL PAPER SPECIFICATIONS ........................................... 1-2
1.3 BATTERY PACK (OPTION) SPECIFICATIONS ............................. 1-3
1.4 AC ADAPTER (OPTION) SPECIFICATIONS ........ ............................1-3
CHAPTER 2
DISASSEMBLY..............................................2-1
CHAPTER 3
ADJUSTMENT...............................................3-1
3.1 ADJUSTING THE APPLIED ENERGY FOR THE THERMAL HEAD .3-1
3.2 ADJUSTING THE CHARGING TIME FOR THE BATTERY ............ 3-4
CHAPTER 4
TROUBLESHOOTING.........................................4-1
CHAPTER 5
CIRCUIT DIAGRAM ..........................................5-1
5.1 MAIN BOARD CIRCUIT DIAGRAM ...................................................5-2
5.2 SWITCH BOARD CIRCUIT DIAGRAM ........................................... 5-5
CHAPTER 6
BOARD DIMENSIONS ........................................6-1
6.1 MAIN BOARD DIMENSION ............................................................ 6-2
6.2 SWITCH BOARD DIMENSION ....................................................... 6-3
CHAPTER 7
PARTS LIST ................................................7-1
CHAPTER 8
PACKING SPECIFICATIONS...................................8-1

iv
TABLES
Table Page
1-1 Printer Specifications ...................................................................... 1-2
1-2 Thermal Paper Specifications ......................................................... 1-3
1-3 Battery Pack (OPTION) Specifications ........................................... 1-3
1-4 AC Adapter (OPTION) Specifications ...............................................1-3
7-1 Parts List ...........................................................................................7-3
8-1 Packing List .......................................................................................8-3
FIGURES
Figure Page
2-1 Remaining the Screws of the Upper Cover.........................................2-1
3-1 Head Rank Mark ...............................................................................3-1
5-1 Main Board Circuit Diagram (1/3) ......................................................5-2
5-2 Main Board Circuit Diagram (2/3) .......................................................5-3
5-3 Main Board Circuit Diagram (3/3) .................................................... 5-4
5-4 Switch Board Circuit Diagram ...........................................................5-5
6-1 Main Board Wiring Pattern (Heads side) ......................................... 6-2
6-2 Main Board Wiring Pattern (Tails side) ............................................ 6-2
6-3 Main Board Parts Layout (Heads side) ........................................... 6-3
6-4 Main Board Parts Layout (Tails side) .............................................. 6-3
6-5 Switch Board Dimensions ............................................................... 6-4
7-1 Parts Developments ..........................................................................7-2
8-1 Packing Materials Developments ......................................................8-2

1-1
CHAPTER 1
GENERAL SPECIFICATIONS
1.1 PRINTER SPECIFICATIONS
Table 1-1 Printer Specifications
Item Specification
Model number DPU-414-30B -E
Print method Thermal serial dot method
Image mode selection Swichable to character mode or bit-image
graphic mode through program.
Fonts
JIS special patterns: 222 kinds
International (Country) characters: 28 kinds
Special characters: 6 kinds
Total: 256 kinds
Total number of dots 9 x 320 dots / Iine
Character matrix 9 dot high x 7 dot wide
Character dimension 2.47 x I .88 mm: at 40 column (normal)
2.47 x 0.94 mm: at 80 column (condensed)
Columns 40 column (normal)
80 column (condensed)
Line space Programable (default: 6 dots)
Printing direction Unidirectional or bidirectional logical seek
Character mode
specifications
Printing speed Max. 52.5 cps (normal)
Max. 80 cps (condensed)
Total number of dots 8 x 320 dots / Iine (single density)
8 x 640 dots / Iine (double density)
Horizontal dot pitch 0.28 mm (single density)
0.14 mm (double density)
Vertical dot pitch 0.28 mm
Printing width 89.6 mm
Bit-image graphics
mode specifications
Printing direction Unidirectional logical seek

1-2
Table 1-1 Printer Specifications (Continued)
Item Specification
Life 500 thousand lines or over
(“8” 40 digit continuous printing)
Interface 8-bit parallel and RS-232C serial
External dimensions 160 mm x 170 mm x 66.5 mm
Mass approx. 580 g
(excluding the battery pack and thermal roll paper)
Operating
temperature 0 to 40 °C (32 to 104 °F)
Strage
temperature -20 to +60 °C (-4 to 140 °F)
Operating
humidity 30 to 80 % RH (non-condensing)
Environmental
conditions
Strage humidity 5 to 90 '% RH (non-condensing)
Charging time approx. 10 hours through the AC adapter at power
OFF the printer.
Chargeable
battery Battery life approx. 3,000 Iines in character printing.
Serial interface RDED-9SE-LN (Hirose) or equivalent
Parallel interface 57LE-40360-7700 (D29) (DDK) or equivalent
Connectors
(printer side) Power
(AC adapter) HEC0470-01 -630 (Hosiden) or equivalent
Input buffer 28 Kbytes
1.2 THERMAL PAPER SPECIFICATIONS
Table 1-2 Thermal Paper Specifications
Item Specification
Product No. TP411 -28CL (TP-411 L)
Type Normal thermal paper
Paper width 112 mm
Roll external diameter 48 mm (maximum)
Paper length approx. 28 m
Paper thickness 64 ±4 µm

CHAPTER 1 GENERAL SPECIFICATIONS
1-3
1.3 BATTERY PACK (OPTION) SPECIFICATIONS
Table 1-3 Battery Pack (OPTION) Specifications
Item Specification
Product No. BP-4005-E
Battery type Ni-MH battery
Output voltage 4.8 V
Weight approx. 0.26 lbs (approx. 120 g)
1.4 AC ADAPTER (OPTION) SPECIFICATIONS
Table 1-4 AC Adapter (OPTION) Specifications
Item Specification
Model number PW-4007-U1-E PW-4007-E1-E
External dimensions
(W ×D ×H) 100 mm ×58mm ×49 mm 1 14 mm ×74 mm ×61 mm
Weight approx. 690ｇapprox. 1000ｇ
Cable length approx.1.9m approx.1.9m, 1.9m
Input power voltage AC 120 V AC 230 V
Frequency 60 Hz 50 Hz
Rated output voltage DC 6.5 V DC 6.5 V
Rated output current 2.0 A 2.0 A
Safety regulation UL, CSA CE

1-4

2-1
CHAPTER 2
DISASSEMBLY
How to disassembly the DPU-414 Serial Thermal Printer is given in this chapter.
Procedure:
1. Remove the 4 screws in the bottom of the printer.
2. Lift the upper cover straight up to remove.
Figure 2-1 Remaining the Screws of the Upper Cover

2-2