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EPSON TERMINAL PRINTER

LQ-860/1060
TECHNICAL MANUAL

NOTICE
` All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKO EPSON's express written permission is forbidden. ` The contents of this manual are subject to change without notice. " All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. " The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences thereof. @ Copyright 1989 by SEIKO EPSON CORPORATION Nagano, Japan -i-

REV.-A

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury, and 2) damage to equipment: DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by a DANGER headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE. 2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. 3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SE:RIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY-AC RATING DIFFERENT FROM THE AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. 3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE pP CHIPS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. 5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS RECOMMENDED BY THE MANUFACTURER; INTRODUCTION OF SECOND-SOURCE ICS OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSC)N WARRANTY.

- ii -

REV.-A

PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the LQ-860/l 060. The instructions and procedures included herein are intended for the experienced repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows: Chapter 1 Provides a general product overview, lists specifications, and illustrates the main components of the printer. Chapter 2 Chapter 3 Chapter 4 Describes the theory of printer operation. Discusses the options Includes a step-by-step guide for product disassembly, assembly, and adjustment. Chapter 5 Chapter 6 Provides Epson-approved techniques for troubleshooting. Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.

` The contents of this manual are subject to change without notice.

- iv -

REVISION TABLE
REVISION DATE ISSUED

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CHANGE DOCUMENT
1st issue

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REV.-A

TABLE OF CONTENTS
CHAPTER CHAPTER CHAPTER CHAPTER 1. 2. 3. 4. GENERAL DESCRIPTION PRINCIPLES EQUIPMENTS OPERATING OPTIONAL

DISASSEMBLY, ASSEMBLY, A N D

ADJUSTMENT

CHAPTER 5. CHAPTER 6. APPENDIX

TROUBLESHOOTING MAINTENANCE

- vi ­

REV.-A

CHAPTER 1 GENERAL DESCRIPTION
1.1 1.2 FEATURES-=M~."H..H..-M..M .-.~..H.H".UM.-.-.~.M.-.-Ho ...-.---.-.Hu.-.M1..1-1 SPECIFICATIONS .fl.-..-~..-.~.~.-..-..-tiuu. `iHu.o.u..-ttio.-.--.-.-tio.- .~.-l-3 1.2.1 Hardware Specifications"... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..........................1-3 1.2.2 Firmware Specifications -.-.-ti.m.-.o.tito.-.tim.-.ti .-.~--.~.~-.~'~-..l-9 1.3 INTERFACE OVERVIEW ----- C.~..~-..-..M~MU.6fiM-H..fi.- .m-.fi.-fifHM-.HM-.ml-13 1.3.1 8-Bit Parallel interface Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - 1.4 -..-1-13 1.3.2 RS-232C Serial interface Specifications -.-.H.,,-.-.-.MHHM.HH.M.-H. M-1-16 DIP SWITCH ANDJUMPERSETTINGS ...-.'fi..-.=.HH.H...-M-.H.H-.-.~.~~-.-19l9 ..... 1.4.1 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 1.4.2 Jumper Settings -.."~..-.m.M..-.-.-.H.H.fiH..- .~.~-.~.=.~~~..~~~..~.l-21 1.5 1.6 1.7 SELF-TEST OPERATION ~--.H.-.-.H...-M-..-.fi.mo.H .~.~.~.~.~-.~.~-.~-l.2222 HEXADECIMAL DUMP FUNCTION ...H.-..Hu..-.H.--.-..~.-M----M-.H.u.-M.1.2323 PRINTER INITIALIZATION ..H.=..MM-~.-.H.-.M.-.-.~.-. -.-uu..-H-.H.H.~--.ul-24 1.7.1 Hardware Initialization ~.-.-..~.-.H.H.-.-..-H.M---- H."~-.-.~.HH.H-.-l-24 1.7.2 Software Initialization .~~.~..~.~..--..H.u.uH.-.H..~~.H.--M.H.-H.~.M.l-24 1.7.3 Default Values- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -..-.---..--.-.--.--.-..1-24 1.8 BUZZER OPERATION AND ERROR CONDITIONS ,MH...H..-.-...H.M - - - - - - - - - - - .1-25 1.8.1 Buzzer Operation ~-..-.-.~H.-...o..M.H.M ----- H.H.H-.-.-H.-..-..HH.M.1-25 1.8.2 Error Conditions ...~.-...H---.-.H.-.-.-..-H.- .-.-u.H..~H-.-H.u.-25.l-25 1.9 MAIN COMPONENTS -.~..-.~.M..M-..-..-M.-..M.- H.M..~.MH-.-.-H.Hl-.oH-.Hl -26 1.9.1 Printer Mechanism ..~~..~-.~..~.H.M.-.~.-.H.M.- ..--M..-~.~.~~.l~.-l-27 1.9.1.1 Printer Mechanism Features - - - - - - - - - - - - - - - - - - - - - - - - - - -.-.1-27 .. 1.9.1.2 Paper Feed Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................1-28 1.9.2 JUNMMBoard (Main Board) .-M-.H.~.M.H.u.H.H.M.-H.H.. M--..H.-29.-1-29 1.9.3 MONPS/MONPSE Board (Power Supply Circuit Board) .-.-.~-.~..~1.-~l-3o 1.9.4 Control Panel ...=..~.-.~.~..f~.-~...~-.~..-.~~.~.-..-~-.-.-~"~.-.=.-.l -31

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REV.-A

LIST OF FIGURES
Figure 1-1. LQ-860/1060 Exterior Views """"""""""""""""""""""""""""""""""""""" """""""""""""""""""""l-1 """""""""""""""""""""""l-3 Figure 1-2. Printheacf Pin Configuration -.--"-"""""""""""""""""""""""""""""""" Figure 1-4.

Figure 1-3. Cut Sheet Paper Printable Area """""-"""""""""""""""""""""""""""""""" """""""""""""""""l-5 Fanfold Paper Printable Area ."".""H""""."-.".""""""."""""o""""".". s"".."".""".""4"""""1-6 1 Figure 1-5. Head Adjustment Lever Positioning """"""""""""""""""""""""""""""""""""""" """"""""""""l-7 Figure 1-6. Character Matrix `s.."...."""".""""""""""""""""""""""""" """"""""""""""""""""""""""""""""""""l-1 Figure 1-8. Figure 1-7. 8-Bit Parallel interface Data Transmission Timing ....."."""""""""""""""""""""1-13 36 Pin Printer Side tinnector"-""."-".."""". c.".""".".""".""""."."".""""".".""0". .""1-13 Figure 1-9. RS-232Clnterface Handshaking,"-"".-"."""..."".." ."".""""".....-"""""""""."""."."".1-1 6 Figure 1-10. Serial Data Transmission Timing """"""."""""""""""""""""""""""""""""""" """""""""""""1-17 Figure 1-11. Serial Interface Connector `.""""."""""""."""""""""""""""'"""""""" """""""""""""""""""""1-17
.-'., .~:. .,.

Figure 1-12. Self-Test Printing ......."""""""""""""""""""""""""""""""" """""""""""""""""""""""""""""'"""""l-22 Figure 1-13. Hexadecimal Dump List".""."-"""".""-"....".."."."""."" """"""""".".".""-""""""""s""."1-23 Figure 1-14. LQ-860/1060 Component Locations "-00".""..00"."".o.o""-""."""-""cc"""." ."s""..""1-26 Figure 1-15. Model-5810/5860 Printer Mechanism OOC.."".....""""""..O".....""""..""U". "..-..1-27 Figure 1-16. JUNMM Board Do....."..-"."-.-...".."...."...."...." .......................""....".........l-29 Figure 1-17. MONPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......................................l-30 Figure 1-18. Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

,:.:.,. .

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REV.-A

LIST OF TABLES
Table 1-1. Table 1-2. Table 1-3. Table 1-4. Table 1-5. Table 1-6. Table 1-7. Table 1-8. Table 1-9.
O Optional Units ........ '......., . . . . . . . . .......... ..... "... ""..'" """""""""""""""""""""""""" """ ""l-2 Optional Interface Bc~ards -..-.~..~.~..uH"-..-.uH"-o- ""~-~"~"--"~"~""fll-2 .... Line Feed Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 .

Cut Sheet Paper Specified Conditions -.....m.oo"-"m'ti"-"ti-""o-"ti"- "-"-"1-4 Continuous Paper Specified Conditions -.-.-.-..--.-."-.--"-"--"- "-"-""1-5 Lever Adjustment..""...'"""." """"."""""-------"------s-"-"--"""""-""" `--""-""-""-"""""--""""-1-7 Ribbon Cartridge Specification -..~-...--..-....-tio-o.H.-HM "-""~~"~-""~1-7 Dimensions and Weight -....-.~..-.~.M..--.-.o-.uM" -""u"-~"u"M-"H.H"M"l-8 Electrical Specifications .~.-..-..-~..-.Hu..-.~"-H"su. -"Mu.-"o-u"uc-.1.8-8

Table 1-10. Environmental Conditions .-.-...--..-.-.-.-.-..--.-"" -.--.-"---"-"-"-1-8 Table l-11. Printing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................".."""."""""""""""""""" "l-lo Table 1-12. Character Matrix and Character Size .~.-.oH-.H..co"u"."u-H"ti"M" --"-"1-12 Table 1-13. 8-bit Parallel l/F Connector Pin Assignments ......-....."...""."""""""""""""""""1-1 4 Table l-14. Select/Deselect Control ..~~...-.-.~.~.-..ti-.ti.M.ti'o"-""-~"~"~"-~-"-l-15 Table l-15. Serial Interface Handshaking ...---.-..M.M.-.H"~.M"MCOCO -oH"-o-"HM"u1-16 Table l-16. RS-232CSerial l/F Connector Pin Assignments ........-""""...".-""-"""s"""".""1-18 Table l-17. DIP Switch lSettings .~.~~..-..~.-.~.~.-..-..-"..-"-~"~"-"-"~"~"--"~"l-l9 Table l-18. International Character Set Designation ................""..""."""""""""""""""" """"""1-19 Table l-19. DlPSwitch2 Settings .-.-.~.~...-~..M.n"MM-.n"M." --"-"~-"~""~~"~-"-l-20 Table l-20. Interface Selection ~...-..f~o..~...-~H"..ti.tio.H" "~"~~""-"---"~"~~"~"1"202o Table l-21. Baud Rate Selection ..-.-.~...-.ti.ti..-..ti-ti.uo""~~~""-"--"-"-"-~"-"l-2o Table l-22. Jumper Setting ~.~.-.-..~~..-..-.~~..~--.oH -.~.~"-.~"~"-~"~"~"-~"~""l-2 1 ..... Table l-23. Self-Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Table l-24. Hexadecimal Dump Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .""".""."."-".""""""1-23

l-iii

REV.-A

1.1 FEATURES
The LQ-860/1080 printerS a r e multifunction~ll, features of the these printers

24-pin printhead, impact dotmatrix printers. The main

are:

. Upward compatibility with the LQ-850/1050 . ~ maximum print speed of 290 cps in super draft mode at 10 CPI, of 270 Cps in draft mode at 12 CP1' and of 90 CPS in LQ mode at 12 CPI o Direct selection of font and pitch in SelecT'YPe feature from the contrOl panel

. Both 8-bit parallel and RS-232C serial interfaces . Color printing capability
. Push and (optional) pull tractor feeding

. Advanced paper handling:
AUtomatiC paper-loadin9/ejectin9 function Tear-off funCtiOn Printing of fanfold paper without removal of the cut sheet feeder (option) . Low-noise acoustics

. Optional interface for the EPSON 8100 series
cut sheet feeders which contains enveloPe feedin9 . Optional low-priced, single-bin and double-bin capability Table 1-1 lists optional units available, and Table 1-2 lists

Figure 1-1 shows exterior views of the printers,

the optional interface boards (refer to Chapt[?r 3 for more detailed information) for the LQ-8W106O.

LQ-860

LQ-106O

Figure 1-1. LQ-860/1060 Exterior Views

1-1

REV.-A

Table 1-1. Optional Units
No. C800071 C800101

I
Pull tractor unit Pull tractor unit

. .. r.-,..+,
I LQ-860
o ! o

Name

1 LQ-106O
~ ­

C806141 I Cut sheet feeder (single-bin) C806181 C806151 C806191 #7762 87763 ff7764 #7407 Cut sheet feeder (single-bin) I
-

! -- o o o o

0

o ; ­ ~ Cut sheet feeder (double-bin) Cut sheet feeder (clouble-bin) Ribbon cartridge (black) Ribbon cartridge (color) Ribbon cartridge (film) Multi font module o

Table 1-2. Optional Interface Boards

I

No.

/

Name

I

1#8143 I Newserial i n t e r f a c e 1#8145 IRS-232C #8148 #8149 #8149M #8161 c u r r e n t loopinterfacetypell

I I

Intelligent serial interface Intelligent serial interface type II Intelligent serial interface type Ill IEEE-488 interface Intelligent IEEE-488 interface

l=-+--#8172M

32K-byte buffer parallel interface 128K-buffer parallel interface I

1-2

REV.-A

1.2 SPECIFICATIONS
This section describes the specifications for the printer without the Identity Module option. Specifications not affected by firmware (hardware specifications) are the same whether or not the Identity Module is installed. 1.2.1 Hardware Specifications Printing Method Pin Configuration Serial, impact dot matrix

See Figure `I-2 (12x2 staggered, diameter: 0.2 mm).

--

0 y

-dzI
3

15 17 19 21 23

r
4 6 8 10 12 14 16 18 20 22 24

o m
T

[~
` i/60' "

[ 1/60"

Figure 1-2. Printhead Pin Configuration
Feeding Method Friction feed Tractor feed (push: standard, pull : optional)

NOTES :

1. When using friction feed :
Adjust the paper release lever at rear position. Use the paper tension unit. Do not use continuous paper. Do not use a single sheet paper shorter than 182 mm or longer than 257 mm (LQ-860), 364 mm (LQ-106O). Do not perform any reverse paper feed operations within the top 8.5 mm and bottom 22 mm area of the paper. Do not perform reverse feed beyond than 1/6 " after the paper end has been detected. Do not use multi-part single sheet forms. 2. When using tractor feed: . Multiple copies for printing must be finished by pasting them together at the line or dots. . Copy paper must be a carbonless multi-part paper. a) When using push tractor feed: . Adjust the paper release lever at center position. " Use the paper tension unit.

1-3

REV.-A " Do not perform reverse feeding for more than 1/6 ". " Because accuracy of paper feed cannot be assured, do not perform reverse feeding after the paper end has been detected. b) When using pull tractor feed : " Adjust the paper release lever at front position. " Remove the paper tension unit and mount the pull tractor unit. o Use the paper path when a single sheet is inserted.
WV I " I U~ll -' `-L l-~Ull 11 cX,LUl IGC7J . c) `A''--- 1~1 "-'--Iy ~UW -'`" `---"-" `---A "

Adjust the paper release lever at front position. Remove the paper tension unit and mount the pull tractor unit. Do not loosen the paper between the platen and the pull sprocket. Precisely the horizontal position of the pull sprocket and push tractor. Do not perform reverse feeding for more than 1/6". Do not perform reverse feeding after the paper end has been detected. Paper Loading Directions Line Spacing Line Feed Speed Inserted from the rear side 1/6" or programmable (min. 1/360") See Table 1-3.

Table 1-3. Line Feed Speeds
Feeding Method Friction without CSF Friction with CSF Tractor 1 /6" line spacing [ins/line] 56.4 67.3 3.1

I
I

Continuous IIPS]

I

64.1

Paper specifications Cut sheet paper Refer to Table 1-4.

Table 1-4. Cut Sheet Paper Specified Conditions LQ-860 LQ-106O
182-364 (7.2- 14.3")

l--=%-l
*
Quality Copies

182-257 (7.2 -10.1 ")

1

182-364 (7.2-14.3") 0.065-0.10 (0.0025-0.004")

14-22 (52-82 9/m2) Plain paper Not available

1-4

REV.-A
Continuous paper Refer to Table 1-5.

Table 1-5. Continuous Paper Specified Conditions LQ-860
1

LQ-I 060

I

Width

[mm]

I 101-254 (4.0-10.0") I 101-408 (4.0-16.0") I 4 (1 original +3) at normal temperature 3 (1 original +2) at all temperature range Plain paper 0.085-0.32 (0.0025-0.01 2") 1 sheet" ."14-22 (52-82 g/m2) 4 sheets" ""12-15 (40-58.2 g/m2) for each

I

H
Quality Total Thickness [mm] Weight [lb] Printable Area Cut sheet paper See Figure 1-3.

I

7.2­10.1 *1 (14.4)", 182­257 (364) mm

--TY' 0.33", 8.5 mm

t* 3 = i

m
* 3 --

i

Printable area

I

or I --I I

`r
ABC

T
XYZ

7.2­14.3", 182­364 mm

1NOTES : 1.
2. edge of the page. 3.

ABC 1 7 0.53", 13.5 mm or more +L

.J-

-1
XYZ
I

Values in the parentheses apply to the LQ-106O. Printing is possible for approximately 42 mm after the bottom edge of a page has been detected. Thus, the value 13,5 mm (lowest print position) is given for reference only. Paper feed accuracy cannot be assured in the area approximately 22 mm (0.87") from the bottom 0.12", 3.0 mm or more when the 12", 305 mm or less width paper is used. 0.58", 15 mm or more when the 13" width paper is used.

Figure 1-3. Cut Sheet Paper Printable Area

1-5

REV.-A Fanfold (continuous) paper See Figure 1-4.

4!

- 10*1(1 6)",

101 - 254 (406) m m

4 I
*2

*2 &
0 0

Printable area

0 0

Printable area

0 0
0

0 0
0 0

0 0

i 0.35", 9 mm or more +
0.35", 9 mm or more

o
o
0 0 - -

L
-

0

AE&

XYZ i

0 0 0

-

-

0 - - - - - - -- . -- - - - - - - - - - - - -- -- 0

0
0

o 0 o
0 0 0

0

t Printable area

o o 0
0

T

AE~

X'fz

T

0
0

0
0 0 0

0
0

NOTES : 1. Values in the parentheses are apply to LQ-106O.
2. 0.47", 12 mm or more when the 101 to 242 mm, 4 to 9.5" (101 to 378 mm, 4 to 14.9") width paper is used. 0.98", 25 mm or more when the 254 mm, 10", (381 to 406 mm, 15 to 16") width paper is used.

Figure 14. Fanfold Paper Printable Area

Envelopes Size Quality Thickness NOTES : Weight NOTES : No. 6 (166 x 92 mm), No. 10 (240 x 104 mm) Bond paper, xerographic copier paper, airmail paper 0.16-0.52 mm (0.0063-0.0197") Differences in thickness within printing area must be less than 0.25 mm (0.0098"). 12-24 lb (4!5-91 g/m2) 1. Envelope printing is only available at normal temperature. 2. Keep the longer side of the envelope horizontally at setting. 3. Set the left of No. 6 envelope at the setting mark of the sheet guide. Label Size Thickness 2% X 1%'s", 4 x %", 4 X 1 %" 0.19 mm (0.C075") max.

f .-..;, ,-,,

NOTES: Thickness excluding the base paper must be less than or equal to 0.12 mm (0.0075").

1-6

REV.-A NOTES : 1. Printing of Iabes is only available at normal temperature.
2. Labels must be fanfold. 3. Labels with pressure-sensitive paper must be jointed by pasting along the dots or lines, and the total thickness must be less than or equal to 0.3 mm (0.0118") to be printed out under conditions that must be between 5 to 35-C and 10 to 4. Examples of Iavels:
80°/0

RH.

AVERY CONTINUOUS FORM LABELS AVERY MINI-LINE LABELS

Lever Adjustment

See Figure 1-5 and l-able 1-6.

Table 1-6. Lever Adjustment Lever Position
2nd 3nd 4th 5th I

Paper Thickness [mm] 0.06-0.1:1
0.13-0.17 0.1 8-0.:!5 0.26-0.32 +
u

~

I

Figure 1-5. Head Adjustment Lever Positioning NOTES : 1.
When printing density becomes lighter, set the head adjustment lever one position lower. the 6th or higher appropriate position by performing the self-test operation. Ribbon Cartridge See Table 1-7.

2. When using thicker paper than shown in the above table, set the head adjustment lever to

Table 1-7. Ribbon Cartridge Specification
Ribbon Model No. I #7762 I #7764 I #7763

w%k'i'm :ii:;:nMagenta7and

1-7

REV.-A Dimensions Weight See Table 1-8 (Details are shown in Figures A-36 and A-39.) See Table 1-8.

Table 1-8. Dimensions and Weinght
Width [mm] I Height [mm] Depth [mm] Weight [Kg]
1

I
I

I I

LQ-860

I

I

469

194 I 609 i 194

II

399 399

I

10 13

I

LQ-106O

I

I

I

NOTE : Excluding paper feed knob and sheet guide.

Electrical Specifications

See Table 1-9.

Table 1-9. Electrical Specifications 100-120 V Version
Voltage [V AC] Frequency Range [Hz] Rating Current [A] Insulation Resistance [M ohm] min. Oitween AC line and chassis) Dielectric Strength [V AC, rms] (1 minute, between AC line and chassis) 1250 3750 2 10 108-132 49.5 -60.5 1 220-240 V Version 198-264

~. .:,,
" -,

Conditions Refer to Table 1-10.

Table 1-10. Environmental Conditions I
Storage Operating (";,

Resistance to shock [G]
(within 1 ms)

2

1

L@_

Resistance to Vibration [G]

0.50

0.25

1-8

REV.-A
Reliability MCBF MTBF LQ-860 : LQ-106O : Printhead life Safety Approvals Safety standards UL478 (U.S.A. version) CSA22.2#f54 VDE0806 (TUV) (European version) Radio Frequency (RFI) Interference FCC class B (U.S.A. version) VDE0871 (self-certification) (Europe version) 4000 POFI (duty 25 6000 POI-I (duty 25
0

5 million lines (excluding printhead) (MCBF . . . Mean Cycles Between Failure)

/0) /0)

0

(POH . . . . F)ower On Hours)
200 milion strokes/wire

1.2.2 Firmware Specifications
Control Code Printing Direction Input Data Buffer Character Code Character Set Family Font ESC/P-84C Bidirectional with logic seeking 6 K-byte or none ( DIP SW 1-8 selectable) 8 bits 96 ASCII, 14 international, and 1 Legal charactersets Roman: Sansserif: Roman: Sansserif: Draft: Printing Mode No. O No. 1 10, 12, 15, Proportional 10, 12, 15, Proportional 10, 12, 15

Printing quality (Draft/LQ) Character pitch (10, 12, 15 CPI or Proportional) Condensed Double-width Double-height Emphasized Double-strike It:alic Lhderlined Double-underlined C)verscore Strike-through Shadow/Outline

NOTES : Print Speed

A condensed mode for 15 CPI characters is not available. Refer to l-able 1-11. Refer to l-able 1-11.

Print Columns

1-9

.....

REV.-A
Table 1-11. Printing Mode
Print Pitch Condensed Emphasized Double Width Character Pitch [cPI] 10 0 0 0 1 1 0 1 1 x o 1 12 0 0 0 1 1 0 1 1 x o 1 15 0 0 0 1 1 0 1 1 %oporticmal o x x x o 8.6 20 1 4.3 10 1 x o 17.1 40 1 8.6 20 `proportional Super/ subscript o x o 12.8 30 1 6.4 15 1 x o 25.7 60 1 12.8 30 -- -- ­ -- -- -- -- -- -- -- -- -- 10 5 10 5 17.1 8.5 12 6 12 6 20 10 15 15 7,5 7.5 Printing Speed [CPS] Draft 225"' 113 113 56 193 96 270 135 135 68 225 113 338 169 169 84 LQ 75 38 75 38 129 64 90 45 90 45 150 75 113 56 113 56 Ignored 64 150 32 75 129 300 64 150 96 225 48 113 193 450 96 225 Max. 69 Min. 160 Max. 34 Min. 80 Max. 137 Min. 320 Max. 69 Min. 160 Max. 103 Min. 240 Max. 51 Min. 120 Max. 206 Min. 480 Max. 103 Min. 240 Max. 117 Min. 272 Max. 59 Min. 136 Max. 233 -- Min. 544 Max. 117 Min. 272 Max. 175 Min. 408 Max. 87 Min. 204 Max. 349 Min. 816 Max. 175 Min. 408 LQ-860 80 40 80 40 137 69 96 48 96 48 160 80 120 60 120 60 LQ-1060 136 68 136 68 233 117 164 82 164 82 272 136 204 102 204 102 Printable Columns

r' ,

..

1-10

REV.-A
* 1 : 290 CPS at super draft printing (DIP SVV 1-6 is off). NOTES : 1. Max. means the value when t:he maximum width characters are printed.
2. 3. Min. means the value when the minimum width characters are printed. " --" means that LQ character set is automatically selected when proportional pitch is specified.

Character Matrix

See Figure 1-6 and Table 1-12.

(Normal Character)
1
Ascender Area 2 3 4 R 5 I 6 G 7 r Ascender Area (15pitch ) H 8 T 9 ; 10 > s II i P 12 ., A 13 c 14 10. E 15 (a 2 16 /7 18 19

(Superscript Character) Pin Nos. 17 to 24 are not used when superscript printing.

--
2 L 3 E 4 F 5T 6 7s Eip 9 A 10 c II E
12 13 14 15 16

R A H T s
P A

c E

20 21 22 23 24

[

--

Descender Area (Subscript Character) Pin Nos. 1 to 8 are not used when subscript printing Face Width (al ) Character Width (CW) 9 10 II 12 13 14 15 16 17 18 19
20 21 22 23 24

--
L E F T s p A c E

R ; H T s P A c E

J

[

--

Figure 1-6. Character Matrix

1-11

REV.-A Character Size See Table I-12.

: P.: , .
Face Matrix HDD Character Size H. XV. (mm) Unit ESC
Sp

Table 1-12. Character Matrix and Character Size
Printing Mode

DRAFT, 10 pitch DRAFT, 12 pitch DRAFT, 15 pitch DRAFT, 10 pitch, condensed DRAFT, 12 pitch, condensed LQ, 10 pitch LQ. 12 pitch LQ, 15 pitch LQ, 10 pitch, condensed LQ, 12 pitch, condensed -Q, proportional

9 X 23 9 X 23 9X 1 6 ... ... 29X 23 29X 23 15X 16 ... ... max. 37X 23 min. 18X 23

120 120 120 240 240 360 360 360 360 360 360 360 360 360 360 360 360 360

1.9x 3.2

120

1.9x 3.2
1.0 X 2.3 ... ... 2.0x 3.2 2.0 x3.2 1.0X 2.3 ... ... 2.6X 3.2

120
120 120 120 180 180 180 180 180 180

.-,:. . . . . *
"=-. +

1.0x 3.2 ... 180 ... 1.8x 2.3 160 0.7X 2.3 ... 180 ...

.Q, proportional, condensed

... ...

.Q, proportional, super/subscropt

max. 28X 16 min. 12x 16

-Q, proportional, super/subscript, condensed

... ...

NOTES : 1. "HDD" means the Horizontid dot density, and the "Unit" shows the number of dots per inch.
2. 3. 4. "Face matrix" and "character size" indicate the size of maximum characters and this value will be changed condition of paper, ribbon, and etc. "Unit ESC SP" indicates the minimum length which is added to the right of the character that can be specified with ESC) sp control code. ".. ." indicated that the character matrix is reformed by firmware. Character width becomes haJf of a non-condensed character.

.,.... % f `"'
.""

1-12

REV.-A

1.3 INTERFACE OVERVIEW
The LQ-860/1060 has both 8-bit parallel interface and RS-232C serial interface as standard. They can be selected by DIP switches 2-3 and 2-4 respectively. (This detail of DIP switch settings, refer to Table 1-20.) 1.3.1 8-bit Parallel Interface Specifications

Data Transmission Mode
Synchronization Hand Shaking Logic Level Data Transmission Timing Adaptable Connector Connector Pin Assignment Select/Deselect (DC1/DC3)

8-bit pallarel By STROB= pulse By BUSY and ACKNLG (either or both)
TTL compatible See Figure 1-7. 57-30360 (AMPHENOL) or equivalent (See Figure 1-8.) Refer to Table 1-13. Refer to Table 1-14.

Control
BUSY ACKNLG DATA STROBE

~**,~

w
19. GNO (

NOTES : Transmission time (rising and falling time) of evev input signal must be less than 0.2 IAS. Figure 1-7. 8-bit Parallel Interface Data Transmission Timing

1.
2.

Pair witn 1.)
Pair w;th2.)

2 0 . GNO (

3.
4. 5.

21. GND ( Pair with 3.)
22.

G?4D [ Pair

w;ti14.)

23. GND ( 24. GND (

Pair w;tn5. ) Pair w;th6.)

6. 7. 8.
9.

25. GND ( Pair w;th7.) 26. GNO (
27. GNO (

Pair ":t~s.)
Pair w,th9.)

10.
I 1. 12. 13. I 4. 15. 16. 17. 18.

28. GNO ( Pair with 10. ) 29. GNO ( Pair w;th I 1.) 30. GNO ( Pair w;tn 12. ) 31. ~T 32. ERROR 33. GNO 34. NC 35. +5V 36. 5LCTIN

Figure 1-8.

36-Pin Printer Side Connector 1-13

Table 1-13. 8-bit Parallel l/F Connector Pin Assignments
Pin No. 1 Signal STROBE Return 19 1/0 I Description Strobe pulse to read the input data. Pulse width must be more than 0.5 ,US. input data is latched after falling edge of this signal. 2 3 4 5 6 7 8 9 10 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA? DATA8 ACKNLG 20 21 22 23 24 25 26 27 28 I I I I I I I I 0 This pulse indicates data are received and the printer is ready to accept next data. Pulse width is approx. 11 /s. 11 12 BUSY PE 29 30 0 0 "HIGH" indicates printer can not accept data. "HIGH' 'indicates paper-out. This signal is effective only when ERROR signal is "LOW". 13 SLCT -- o Always "HIGH". (Pulled up to +5V through 3.3 K ohms resistor.) 14 AUTOFEED-XT ­ I If this signal is "LOW" when the printer is initialized, a line feed is automatically performed by input of "CR" code (Auto LF). 15 16 17 18 19 to 30 31 NC GND Chassis GND NC GND INIT -- --
--

f';'.

Parallel input data to the printer. "HIGH" level means data "1". "LOW" level means data "O".

-- --
--

Not

USed.

Ground for twisted-pair. Printer chassis ground. Not used. Ground for twisted-pair. Pulse (width : 50 ,US min., active "LOW") input for printer initialization.

-- -- 16 .

-- -- i

32

ERROR

0 . -- o

"LOW indicates that some error has occurred in the printer. Ground for twisted-pair. Not
USed.

33 34 35

GND NC +5V

-- -- --

Always "HIGH". (Pulled up to +5V through 3.3 K ohms resistor.)

36

SLECT-IN

--

I

If the signal is "LOW" when printer is initialized, the DC1/DC3 control is disabled.

NOTES : 1.
2.

"Direction" of signal flow is as viewed from the printer. "Return" denotes "TWISTED PAIR RETURN" and is to be connected at signal ground level.

1-14

REV.-A
As to the wiring for the interface, be sure to use a twisted-pair cable for each signal and never fail to connect the return side. To prevent noise, cables should be shielded and connected to the chassis of the host computer and the printer.

Table 1-14. Select/Deaelect ON-LINE
Sw

Control
ACKNLG DATA

SLCT-IN HIGH/LOW
HIGH

DCI /DC3

ERROR

BUSY

ENTRY DCI /DC3
DC1

OFF-LINE
ON-LINE

LOW
HIGH

HIGH

No pulse

Disable

LOW/HIGH (During Pulse output after Enable (Normal data entry) entry Process)

DC3

HIGH

data entry)

LOW/HIGH (During Pulse output after Enable (Waits entry DC1 . See NOTE 2)

LOW

DC1

HIGH

data entry)

LOW/HIGH (During Pulse output after Enable (Normal entry Process)

DC3

HIGH

LOW/HIGH (During Pulse output after data entry) entry

NOTES : 1. In Table 1-14, it is assumed that no ERROR status exists other than that attributable to the
OFF-LINE mode. 2. Once the printer is deselected by the DC3 code, the printer will not revert to the selected state until the DC1 code is input. (In the deselected state, input data is ignored until DC1 is received.) 3. The DC1 and DC3 codes are enabled only when the SLCT-IN signal (Input Connecter Pin No. 36 when the parallel interface unit is used) is HIGH and the printer is initialized. 4. The SLCT-IN signal is "LOW" when the printer is initialized. At this time the DC1/DC3 printer select/deselect control is invalidated, and these control codes are ignored.

1-15

REV.-A 1.3.2 RS-232C Serial Interface Specifications
RS-232C serial Asynchronous (By DTR (FIEV) signal or X-ON/OFF Protocol (Refer to Table 1-15 and Figure 1-9.) Table 1-15. Serial Interface Handshaking DTR Signal MARK X-ON/OFF protocol X-OFF (DC3/13H) Description When the number of bytes remaining in the input buffer reaches 256 or less, the signal level goes to MARK, or and X-OFF code is sent to the host computer. This indicates that the printer is not ready to receive data. SPACE X-ON (DC1/11 H) When the number of bytes remaining in the input buffer reaches 528 or more, the signal level goes to SPACE, or an X-ON code is sent to the host computer. This indicates that the priter is ready to receive data.

Data Transmission Mode Synchronization Handshaking

DTR (REV) Signal M A R K

(­12V) - - - - - - - - - - -

I

SPASE ( +12V) ~, ~

Eq
: ,

[

6Kbyte

~ 1 : !j28byte 256byte 1 1 1 [ 1 X-ON X-OFF

: Obyte

Input Buffer Vacant Area X-ON/X-OFF Protocol

>,. ,-, Figure 1-9. RS-232C Interface Handshaking

Word Length Start bit: Data bits: Parity: Stop bits: Bit Rate Logic Level

1
8 Odd, Even, or none 1 bit or more 300, 1200, 9600, or 19200 BPS EIA level, IMARK: logical 1 (­3- ­27 V) !SPACE : logical O (+3- +27 V)

1-16

REV.-A Data Transmission Timing
See Figure 1-10.

`T" ~

[ +V)
DTR ( ­ VI ( + v] RXD ( -v)
r

s

- - - - - - - - - - - - - - - - - - - - y :!S!12131:15-FF::;

Data Bit Start Elit DTR Handshake P~rlty

( + v] g:F[<[[[iFEE3 RXD Data Elit [ -v) Start Blt ( + v) P\ri~y

,+apB,+/-- `T "

*

+ i~ 4 -- --

-- -- ik
­

TXD ( -v]
Start

- - - [ - - [ if 4+
D a t a Bit Bit (X-OFF)

. - - [ - -[ IF' 4+

S;;;t D~t:OB;t

x-ON/X-OFF Protocol

NOTES :

1. The value of "T" varies according to the input data. + 2. The word structure of serialclata is 1 start bit + 8 data bits+ parity (Odd, Even, or none) 1 or more stop bits. Figure 1-10. Serial Data Transmission Timing

Error Detection

Parity errcr: Overrun error:

"x" is printed. Ignored

Framing error: Ignored Connector Connector Pin Assignments D-SUB 25-pin connector (See Figure 1-11.) Refer to Table 1-16.

9.NC-- tO. NC -- I l, REv -- f2.NC-- 13. NC ---

LCHASSI 2. TxD--- 3.RXD-- 4,NC-- 5.NC-- 6.Nc---7. SGNAL 8. Nc---

t4. NC i5. NC 16. NC 17, NC 16 NC 19. NC

20.QTR 21.NC 22.NC 23.NC 24.NC 25NC

Figure 1-11. Serial Interface Connector 1-17

REV.-A

Table 1-16. RS-232C Serial l/F Connector Pin Assignments Pin No. 2 20
11 3 7 1

Signal TXD DTR
REV (=2nd RTS) RXD SIGNAL GND CHASSIS GND

Dir. o o
o I ­ ­

Description Transmit data. Indicates when printer is ready to receive data. "MARK"
level indictes printer is not ready to receive data. Same as DTR. Receive data. Signal (Logic) ground level. Printer chassis ground.

NOTE : "Direction" of signal flow is as viewed from the printer.

f `:, .,

1-18

REV.-A
1.4 DIP SWITCH AND JUMPER SEITINGS
This section describes DIP switch settings and jumper settings on the JUNMM board.

1.4.1 DIP Switch Settings
The DIP switches that users can set are SW"I and SW2. These switches are positioned at the left side of the control panel, and have the functions as :>hown in Tables 1-17 through 1-21, (note that the status of the DIP switches are read only when the printer power on or an INIT signal is input.)

Table "I-17. DIP Switch 1 Settings DIP SW. 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 International chacter set Code table select Graphic print direction"' Super draft CSF mode Input buffer Function ON OFF Factory Setting ON ON ON OFF OFF OFF OFF
OFF

See Table 1-18.

Graphic Uni-d. off Valid
None

Italic Bi-d. On Invalid
6K-byte

* 1 : "Graphic print" means follows a) Bit image printing b) Multi pass printing " 30 dots graphics " Double height character o Double overscore/underline . Orator/Orator-S font . Double-strike . Violet, Orange, Green color printing

Table 1-18. International Character Set Designation Country
U. S. A. France Germany U. K. Demarkl Sweden Italy Spainl 1-1 ON ON ON ON OFF OFF OFF OFF 1-2 ON ON OFF OFF ON ON OFF OFF 1-3 ON OFF ON OFF ON OFF ON OFF

NOTE : The above settings can be changed to any country's characters set by inputting ESC R control
codes.

1-19

REV.-A

Table 1-19. DIP Switch 2 Settings
DIP SW. 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 Auto fear-off mode Auto LF Valid Valid Invalid Invalid Baud rate selecton See Table 1-21. Function Page length 1" skip-over perforation Interface selection ON 12" Valid OFF 11 " Invalid Factory Setting OFF OFF OFF OFF OFF OFF OFF OFF

`g

q

See Table 1-20.

Table 1-20. Interface Selection 2-3
OFF ON OFF ON

Table 1-21. Baud Rate Selection 1
OFF ON OFF OFF OFF ON ON 19,200 9,600 1,200 300

2-4
OFF OFF

Function
8-bit Parallel Serial, Even parity Serial, Odd parity Serial, None parity

.*-%

ON
ON

1

ON

1-20

REV.-A 1.4.2 Jumper Settings Table 1-22 shows the jumper settings.
Table 1-22. Jumper Settings No. / 27256 JI 256 4M/2M-BIT IM-BIT Type 27512 6A 512 512K/256K-BIT ROM +5 A16 1 M-BIT' 512K/256K-BIT ROM +5 A16 B1 +5 RD B2 SLCT-IN disable GND LQ-106O Open Open +5 RD 256K-BIT RAM +5 RD WR 4A (CG2) 3A (CG1) ) Location

MASK-ROM J2 J3 B4 RD 4M/2M-BIT

MASK-ROM J4 J5 J6 B4 RD B1 SLCT-IN inable J7 SLIN LQ-860 J8 J9 Close Open

NOTE : Bold indicates the factotw settings.

1-21

REV.-A

1.5 SELF-TEST OPERATION
The LQ-860/1060 printer has the following self-test operation. The control ROM version No. and the DIP switch settings also printout when the self-test is performed. Table 1-23 lists the self-test operating instructions and Figure 1-12 shows the self-test printing.

Table 1-23. Self-Test Operation Type-face
Draft ,-

Start
Turn the power ON while pressing the LINE FEED switch. Turn the power ON While pressing the FORM FEED switch. power OFF.

stop
Push the ON LINE switch, and turn the

Lu

Draft mode ! " #$%& ` ( )*+ , ­ . /0123456789: ; < = >?@~8CDEFGl_i IJKL f " #$%& ` ( )*+ , - . /01 23456789: ; < =>?@46cDEFGti1JKLP " #$%&` ( )*+, -. /C)12345676g : ; ~ = >?@~BcDEFGH IJKLM~ #$%& ` ( )x+, -. /01.23456789 : ; < = >~@~BCDEFGHIJKLmNC $%& ` ( )*+, - . /012' 3456789 : ; < = >?@ ABcDEFGH IJ KLMNOF .,< =>?@ABCDEFGHIJKLMNOpc = ` ( )%+ ,-. /0123; 456789 -& " ( )*+, -- /0123456789: ; < = >~@ABCDEFGH IJKLMNOPQR ` ( )*+, -. /0123456789: ; < = > ?@AB cD E FGH I J K LMN () PQR: ()*+, -./,oI234567B9, ; <=>?@~BCDEFGHIJKLMNopQRST )*+, -./olz3456789:; <=>?@ABcDEFGHIJKLMNOP9RSTL *+,-./ol234567~9: -,<=>?@A6CDEFGHIJKLMNOPQRSTUV + - /n17745A7RQ.. < =>91aQ RCITFI=C14T.TKI MNnDC)!2qTllVk
High-speed draft mode

!"#$%&"( )*+, -./Ol23Zi56789: ;<=>?@6BCDEFGHIJKL "'#$%&'()*+,-. /0123456789: ;<=>?@ABC0EFGHIJKLtIt `-'#$%&"()*+,-. /0123456789: ;<=>?@iM3CDEFGHIJKLMN4 #S%&"(j*+=-./O123456789: ;<=>?@A8COEffiHIJKLMN0
$%&"(j*t>­. !01234567EW: :<=> ?@~~C~~f=GHIJKLMN~p
%&"c)*+,­-/0lZ5ASA78g:

;~=>~@ABCDEffil+lJKLM~ A"()*+,­-/012W%T89--.<=>~@~mDEffitilJK~~ "()*+,­.,/o1234+ <6789: ;<=> ?@ ABCDE FC; H13KLMNOPQRS ()*+,­-/ol23456T8S ::<=? `?@ABCOEFGtilJKLMNOPQRST )*+,--jo~~~456789: ;<=>?@ABCDEFGHIJKLMNC)PQRSTLJ

*+.­./olZ34s698'9 :;<=>?@A~DE~HIJK~~sTuv +. - /f1177A~~r2RCIlFFFiHT.TK I MN(~PC)f?STllVW

L(2 mode !"#$%&) ( )x+,-./OI23456789 : ;<=>?@ABCDEFGHIJK'

!"#$%&y( )*+,-# /0123456789 :;<=>?@ABcDEFGHIJKLI "#$%&'( )*+,-./Ol23456789 :;<=>?@ABCDEFGHIJKLMl #$%&' ()*+, -./ol23456789 :;<=>?@ABCDEFGHIJKLMNi $%&'( )*+, -./Ol23456789: ;<=>?@ABCDEFGHIJKLMNO] %&' ()*+, -./Ol23456789: ;<=>?@ABCDEFGHIJKLMNOPt &'()*+, -./Ol23456789 : ;<=>?@ABCDEFGHIJKLMNOPQl `( )*+,-./ol23456789 : ;<=>?@ABCDEFGHIJKLMNOPQRl ()*+,-. /0123456789:; <=>?@ABCDEFGHIJKLMNOPQRS' )*+, -./ol23456789: ;<=>?@ABCDEFGHIJKLMNOPQRSTI *+,-./Ol23456789 : ;<=>?@ABCDEFGHIJKLMNOPQRSTLP .+.-. /0123456789: :<=>?@ARC~RFRHTJKTIMNOPORSTlrV~ Figure l-12. Self-Test Printing
1-22

REV.-A

1.6 HEXADECIMAL DUMP FUNCTION
In hexadecimal dump mode, the printer prints out the data it receives in hexadecimal format. The printer prints a column of 16 hexadecimal values, followed by a column containing the 16 corresponding ASCII characters. If there is no corresponding printable character for a value (e.g., a control code, such as a carriage return or line feed), a period (.) is printed in the ASCII column in the position of the code. Each line of the dump contains 16 values, printed in the order they were received, and the hexadecimal dump operation and Figure 1-13 shows printout of the operation.
any remaining data

(less than 16 values on the final line) can be printed by operating the ON LINE switch. Table 1-24 shows

Figure 1-13. Hexadecimal Dump List Table 1-24. Hexadecimal Dump Operation IR.mction
Hexadecimal dump mode

I
FORM FEED switches.

Operation
Turn the power on while pressing both the LINE FEED and

I

stop
Turn the power off.

I

I

Data Dump Mode 31 54 70 74 2D 69 72 65 6F 6E 20 69 51 6D 65 6E 2E 68 72 69 70 6D 69 20 66 74 55 6C 2D 61 65 20 31 20 46 45 41 54 55 52 45 53 OD 0/4 00 65 20 4C 51 2D 38 35 30 2F 31 30 35 30 69 6E 74 65 72 73 20 61 72 65 20 6D 75 66 75 6E 63 74 69 6F 6E 61 6C 2C 20 32 69 6E 20 70 72 69 6E 74 68 65 61 64 2C 70 61 63 74 20 64 6F 74 2D OD 0#1 6D 61 78 20 70 72 69 6E 74 65 72 73 2E 20 54 6D 61 69 6E 20 66 65 61 74 75 72 65 73 20 74 68 65 20 74 68 65 73 65 20 70 72 65 72 73 20 61 72 65 3G 20 OD 09 OD OA 70 77 61 72 64 20 63 6F 60 70 61 74 69 69 74 79 2G 77 69 74 68 20 74 68 65 20 38 30 30 2F 31 30 30 30 OD OA 2E 20 41 78 69 6D 75 6D 20 70 72 69 6E 74 20 73 64 20 6F 66 20 32 36 34 20 43 50 53 20 64 72 61 66 74 20 6D 6F 64 65 20 61 74 Ofl 20 6C 34 20 74 68 20 69 2E 62 4C 20 70 69 20 1.1 FEATURES. . . . The LQ-850/ 1050 printers are mul tifunctional, 2 4 -pin print head. impact dot- . . mat rix printers. Th e main features o f t h e t h e s e pri nters are: . . . . . U p w a r d compatib i 1 i ty with t h e L Q-800/1000. . . A maximum print sp eed of 264 CPS i n draft mode at

Figure 1-13. Hexadecimal Dump List

1-23

REV.-A

1.7 PRINTER INITIALIZATION
There are two initialization methods: hardware initialization and software initialization. 1.7.1 Hardware Initialization This type of initialization occurs when printer power is turned on or when the printer receives the INIT signal from the host via the 8-bit parallel interface. When printer is initialized in this way, it perfc)rms the following actions : . Initializes printer mechanism - Clears downloaded character set . Clears the input data buffer . Clears the print buffer . Sets printer selections to their default values

#-:;,, x,

1.7.2 Software Initialization
This type of initialization occurs when the printer receives command (ESC @) via software. When the printer is initialized in this way, it performes the following actions : . Clears the print buffer . Sets printer selections to their default values.

. ,-..

4..,

1.7.3 Default Values
The printer's default values are as follows: Page Position Left and Right Margin Line Spacing Vertical Tab Position Horizontal Tab Position VFU Channel Family Number of Type Style Downloaded Characters Justification Character Per Inch Bit Image Mode Assignment Color Preset paper position becomes top of form position Released 1/6" Cleared Every 8 characters (relative) Channel O Last selected font by the control panel Deselected: Software initialization Cleared: t+ardware initialization Left justification Last selected pitch by the control panel ESC K = ESC *O, ESC L = ESC xl, ESC Y = ESC *2, ESC Z = ESC *3 Black

1-24

REV.-A

REV.-A

1.8 BUZZER OPERATION AND ERROR CONDITIONS
This section describes the buzzer operation and error conditions of the printer.

1.8.1 Buzzer Opeartion
The buzzer ring as follows:
q q

When a BEL code is sent to the printer, the buzzer sounds for 0.5 seconds When an error has occured . Carriage mechanism trouble o Color select mechanism trouble . C.G. ROM error Sounds 5 times (rings for 0.5 sescmds with 0.5 seconds interval.) . Paper end Sounds 3 times (rings for 0.1 seccmds with 0.1 second interval.)

q When

a panel setting is accepted, the buzzer sounds for 0.1 seconds

(Refer to Section 1.9.4 for firther information concerning control panel settings.)

1.8.2 Error Conditions
If any of the following errors occur, the printer automatically enters the OFF-LINE mode. " Carriage and color home positions are not detected at printer mechanism initialization. . Home position is detected during printing. . The OFF-LINE switch is pressed, causing the printer to enter OFF-LINE mode. " A paper-out signal is detected and formes-override is finished. . A paper-out signal is detected after the printer has performed a paper loading operation with the cut sheet feeder enabled. For information concerning the status of the interface signals, refer to Table 1-14.

1-25

REV.-A

1.9 MAIN COMPONENTS
The LQ-860/1060 printer includes the following major subassemblies: . Model-5810/5860 printer machanism " JUNMM board (main board) . MONPS/MONPSE board (power supply board, 120V and 220/240V versions) " Control panel (JUNPNL-W board) Figure 1-14 shows the LQ-860/1060 component locations. MONPS/MONPSE Board Fan Unit \ JUNMM Board

`%.: , '
I
Control Panel

Mlodel-5810 PI`inter Mechanism

LQ-860

,. ., ~:

Model-5860 Printer Mechanism .

LQ-106O

Figure 1-14. LQ-860/1060 Component Locations

1-26

REV.-A 1.9.1 Printer Mechanism This section describes features and paper feed operations of the printermachanism. 1.9.1.1 Printer Mechanism Features The printer mechanism is composed of three stepper motorsused in carriage move, paper feed, and color
select/ribbon feed, a 24-pin printhead, five sensors (home position, paper end, friction/traCtOr, platen gap, and color position sensors), and metal frames.

Model-5810

Model-5860

Figure 1-15. Model-5810/5860 Printer Mechanism

1-27

REV.-A
1.9.1.2 Paper Feed Operations

f!,,

Paper Loading and Paper Ejection The paper release lever has a disengage capability for the optional pull tractor unit's drive mechanism. Therefore, these printers provide some improved paper handling functions that can be performed by using a combination of the paper release lever and LOAD/EJECT switch on the control panel. Single Sheet Loading and Ejection To load a sheet of paper, adjust the paper release lever at friction feed position, place the page along the sheet guide, and press the LOAD/EJECT switch. This loads the paper at the top-of-form position. If LOAD/ EJECT switch is pressed after paper has been loaded, it causes the paper to be ejected. Continuous Paper Loading and Ejection (Back Out) To load continuous paper, adjust the paper release lever at tractor feed position, and insert the paper into the push tractor. Pressing the LOAD/EJECl- switch loads the paper automatically to the top-of-form position. If LOAD/EJECT switch is pressed after the continuous paper has been loaded, the printer ejects the paper backward to the push tractor. To,back out several pages, press the LOAD/EJECT switch several times, since reverce feed is performed on a page-by-page basis. The MULTI-PART LED blinks only after the paper has been loaded and the ON LINE switch has been pressed. After ON-LINE has been pressed, the user can adjust the paper loading position for the next sheet loaded into the printer and the top-of-form position for the currently loaded sheet. Pressing the FORM FEED switch advances the paper forward continuously for as long as the switch is held down, and pressing the LINE FEED switch moves the paper in reverse. Moving the paper with these switches is called "Top-Of-Form adjust". After the paper has been adjusted in this way, the printer uses that position as the loading position for each subsequent page. When the printer is initialized, the loading position for a, single sheet returns to the default value. Tear-Off Function The paper is advanced to the tear-off position by pressing the TEAR OFF switch or auto tear-off function (depend on DIP SW 2-7 setting) when the tractor feed is selected. Auto tear-off function is enabled and the paper release lever is at the tractor position, the paper will be fed to the tear-off position automatically if the input data buffer is empty and the printer is ON-LINE. At this time, MULTI-PART LED will blink to indicate that the FORM FEED and LINE FEED switches can be used for forward and backword micro feed adjustment. Using the micro feed, adjust the paper to meet the tear-off edge. Once the tear-off position is set, the setting remains valid even after the printer is turned off, reset or initialized. If subsequent data is input to the printer, the paper will be released to the original position automatically and printing will start. [f the ON LINE switch is pressed (printer becomes OFF LINE) while the paper is advanced to the tear-off position, then the paper will be released to the original position. Tear-off function is also valid in the cut sheet feeder mode when the tractor feed is selected.
"+. `-.. g: `u.

1-28

REV.-A 1.9.2 JUNMM Board (Main Board) Figure 1-16 shows the JUNMM board, which contains a 8-bit one chip CPU ~PD78213 (4B) to control the operation of the printer. Driver circuits for the motors, sensors, and printhead are also included on this board. Other main ICS on the JUNMM board are: Gate Array IC " EO5A1OAA (8B) .............. Memory management unit (MMU) IC o E05A24GA (5A) ............&bit parallel I/F', port expansion IC " E05A02LA (2A) ............ ".. Printhead data control IC Memory IC " EP-ROM (6A)"""""""""""""."Used for program 256K-bit " MASK-ROM (3A) ..........,.Used for character generator, IM-bit
o PS-RAM (5A) ...............256K-bit " ST-RAM*' (7A).""".".""""""."UK-bit x 1 : The data is held by the lithium battery while power is turned off. Universal IC " S17300A (1A) .................. Carriage motor driver IC

MASK-ROM (C. G.) E05A02LA \ \

PS-RAM I EP-ROM ST-RAM /

Lithium Battery /

S17`300A
\

E05A24GA

('jpu

EO5A1OAA

Figure 1-16. JUNMM Board

1-29

REV.-A

1.9.3 MONPS/MONPSE Board (Power Supply Circuit Board)
The power supply circuit board is located on one of two boards, the MONPS for 120 V AC operation and the MONPSE for 220/240 V operation. The basic construction of the two board is the same: each board contains a power switch, fuses, line filter circuit, and switching regulator circuit. Compactness of the circuitly is made possible by use of a DC-to-13C converter.

.{ `"

... ,

Figure 1-17.

MONPS Board

!. ~. .

1-30

REV.-A 1.9.4 Control Panel
[n the control panel, seven switches and seventeen LEDs, as shown in Figure 1-18. The functions of the switches and indicators are given immediately below the illustration.

Figure 1-18. Control Panel ON LINE Switch This switch toggles the printer between ON-LINE and OFF-LINE modes. The printer is automatically set to ON-LINE mode and becomes ready at power on. If the printer is set to OFF-LINE mode, printing is stopped
and the printer becomes BUSY.

FORM FEED Switch Pressing this switch once while the printer is in the OFF-LINE mode advances the paper vertically to the
next top-of-form position. This switch is also used as the micro forward adjust, refer to Section 1.9.1.2 for details.

LINE FEED Switch Pressing this switch within 0.5 seconds while the printer is in the OFF-LINE state advances the paper one
line at a time. And pressing more than 0.5 seconds performs continuous feeding until this switch is released. This switch is also used as the micro reverse adjust, refer to Section 1.9.1.2 for details.

LOAD/EJECT Switch Pressing this switch loads or ejects the paper. Details of the paper loading and ejection process are described in Section 1.9.1.2. When this switch is pressed in the CSF mode and ON-LINE state, printer beeps once (pi) and selects bin 1, or beeps twice (Pi-, pi-) and selects bin 2 alternately. FONT Switch Pressing this switch selects a font, and continuing to press the switch for more than 0.5 seconds select
the next font, sequentially. The FONT indicator lights beside the currently selected font.

1-31

REV.-A

PITCH Switch Pressing this switch selects the character pitch, and continuing to press the switch for more than 0.5
seconds select the next character pitch, seq~lencially. The PITCH indicator lights beside the currently selected character pitch to confirm its status.

NOTE : Settings by FONT and PITCH switches are stored as defaults. So that the last FONT, PITCH
settings becomes effective when the printer is initialized.

TEAR OFF Switch
Advance the paper to the tear-off position. This switch is only effective in the tractor feed. This switch is effective in both of ON-LINE and OFF-LINE states, refer to Section 1.9.1.2 for details.

POWER LED (Green)
Lights when power is ON. :$, .' .-.
'

READY LED (Green)
Lights when printer can receive the data.

PAPER OUT LED (Red)
Lights when the paper is end.

ON LINE LED (Green)
Lights in the ON-LINE mode.

MULTI-PART LED (Orange) Lights when the head adjustment lever is set for 4th or higher. FONT (DRAFT, ROMAN, SANS SERIF, SLOT A, SLOT B) LEDs (Orange) These LEDs indicate the currently selected font. If slots A and B contain font modules, they each may be
selected using the FONT switch, and the indicator beside either SLOT A or SLOT B will be lit. If no font module is installed in the slot when the FONT switch is pressed, SLOT A and SLOT B selections will be skipped. ,,.. ";

PITCH (1OCPI, 12CPI, 15CPI, 17CPI, 20CPI, PROPORTIONAL) LEDs (Orange)
These LEDs indicate the currently selected character pitch.

TEAR OFF LED (Orange)
This indicator the paper is advanced to a tear off position.

1-32

REV.-A

CHAPTER 2 OPERATING PRINCIPLES
... 2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 . . . . 2.1.1 Connector Descriptions . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . .q.. . . . . . . . . . . . . . . . . . . . . . . .2-1 . 2.1.2 Printer Mechanism Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .q . . . . . . . . . . . . . . 2-2 .... 2.1.2.1 Printing Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 ... 2.1.2.2 Carriage Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 .. 2.1.2.3 Ribbon Feed,/Color Select Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8 ... 2.1.2.4 Paper Feed Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13 2.2 POWER SUPPLY CIRCUIT OPERATION (MONPS/MONPSE board) q 0.000 ."osoooo"oo02-17 2.2.1 MONPS/MONPSE ... Boards . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 ..... 2.2.2 Input Filter Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 . 2.2.3 Rectifier, Smoothing, and Surge-Suppression Circuit . . . . . . . . . . . . . . . . . . . . . . . . . .2-19 .... 2.2.4 Main Switching Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20 . . 2.2.4.1 Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.-.2 0 ... 2.2.5 +35 V Voltage Regurator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23 .. 2.2.6 Over Voltage Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-24 ... 2.2.7 +5 V Switching Regulator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25 ..... 2.2.7.1 Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25 ... 2.2.7.2 Voltage Regulator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25 .... 2.2.7.3 Soff Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26 .. 2.2.8 +12 V Half-Wave Rec:tifier-Smoothing Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27 ... 2.3 CONTROL CIRCUIT BOARD (JUNMM BOARD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28 ..... 2.3.1 Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29 2.3.1.1 Vx (Drive System Pull-up) Voltage Supply Circufi*.**"""* "*-"-c-o*e*2-29 .. 2.3.1.2 Power ON/C)FF Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2. - 3 0 2.3.1.3 Font/Identity Module Installation and Removal Reset"* ""* "**** ""** "*2-31 .. 2.3.1.4 ST-RAM (7A) Battery Backup Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-33 .... 2.3.2 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34 ... 2.3.2.1 8-Bit Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34 2.3.2.2 RC-232C ... Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-38

... 2.3.3 Control Panel Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-41 .... 2.3.3.1 LED Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42

2. i

REV.-A
... 2.3.3.2 Switch Status Read Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43 .. 2.3.4 State Detection and Sensor Signal Input Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44 .. 2.3.4.1 Reference Voltage Supply Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-45 .. 2.3.4.2 35 V Line Voltage Detection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-46 ... 2.3.4.3 VR1/VR2 Reading Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-47 .. 2.3.4.4 Printhead Temperature Detection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48 ... 2.3.4.5 CR HP Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-50 .... 2.3.4.6 CS Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-51 .... 2.3.4.7 PG Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52 .... 2.3.4.8 PE Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-53 . . 2.3.4.9 F/T Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.-. 5 4 ... 2.3.5 Printhead Control and Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-55 2.3.5.1 Relationship Between Paper Thickness and Print Mode "...* ...562-56 2.3.5.2 Relationship Between Printhead Drive Pulse Width and .... +35 V Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57 ... 2.3.6 CR Motor Control and Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-58 .. 2.3.6.1 Reference Voltage Generation Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59 ... 2.3.6.2 CR Motor Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-60 .... 2.3.6.3 CR Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63 ... 2.3.7 PF Motor Control and Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-67 ... 2.3.7.1 PF Motor Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-68 .. 2.3.7.2 PF Motor Phase Switching Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-69 . 2.3.8 CS/RF Motor Control and Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.-. 7 0 ... 2.3.8.1 CS/RF Motor Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-71 .. 2.3.8.2 CS/RF Motor Phase Switching Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-72 j. i ...

z-ii

REV.-A

LIST OF FIGURES
Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. Figure 2-12. Figure 2-13. Figure 2-14. Figure 2-15. Figure 2-16. Figure 2-17. Figure 2-18. Figure 2-19. Figure 2-20. Figure 2-21. Figure 2-22. Figure 2-23. Figure 2-24. Figure 2-25. Figure 2-26. Figure 2-27. Figure 2-28. Figure 2-29. Figure 2-30. Figure 2-31. Figure 2-32. ... Printer Mechanism Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 ... Printing Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3. .. Relationship Between PG Sensor and Platen Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 ... Carriage Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6 ... Ribbon Feed Mechanism . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 .... Color Ribbon Strip Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 .... Color Select Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 .... Friction Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15 .... Push Tractor Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16 .. MONPS/MONPSE Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18 .... Input Filter Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19 .. Rectifier-Smoothing-Surge Suppression Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 ..... Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 .... Main Switching Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21 .. Waveforms at Primary and Secondary Side of T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22 ... RCC System Switch!ng Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22 ... +35 V Voltage Regulator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23 ... Over Voltage Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24 ... +5 V Switching Regulator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25 .. CMP Input and Output Voltage Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26 ... Soft Start Timing . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26 .. +12 V Half-Wave Rectifier-Smoothing Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27 ... JUNMM Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-28 ..... Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 .... Vx Voltage Supply Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 .. Power ON/OFF Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2. - 3 0 .. Module Installed/Removed Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31 .... Battery Backup Circ:uit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-33 . 8-bit Parallel Interface Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34 .. 8-Bit Parellel Interface Circuit . . . . . . . . . . . . . . . . . . . . q.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35 . 8-Bit Parallel Interface Circuit Operation . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . 2-36 .... INIT Signal Proseccing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-37

z-iii

REV.-A Figure 2-33. Figure 2-34. Figure 2-35. Figure 2-36. Figure 2-37. Figure 2-38. Figure 2-39. Figure 2-40. Figure 2-41. Figure 2-42. Figure 2-43. Figure 2-44. Figure 2-45. Figure 2-46. Figure 2-47. Figure 2-48. Figure 2-49. Figure 2-50. Figure 2-51. Figure 2-52. Figure 2-53. Figure 2-54. Figure 2-55. Figure 2-56. Figure 2-57. Figure 2-58. Figure 2-59. Figure 2-60. Figure 2-61. Figure 2-62. Figure 2-63. Figure 2-64. Figure 2-65. Figure 2-66. Figure 2-67. ... Handshaking with DTR Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-38 ... Handsha