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DLQ-3000 & Upgrade Model
SERVICE MANUAL
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EPSON IMPACT DOT PRINTER
DLQ-3000
(upgrade model)
SERVICE MANUAL
EPSON
4006094
PREFACE
This document provides supplementary information to describe the new DLQ-3000 (Minerva+), which is a follow-on version of the DLQ-3000 (Minerva). Therefore, you must refer to this information in conjunction with DLQ-3000 (Minerva) Service Manual for details on any subjects common to both printers.
-i-
REVISION SHEET
Revision A Issue Date March 15, 1996 Revision Page 1st issue
-ii-
DLQ-3000 (MINERVA+)
Product Description
1.1 FEATURES
Minerva+ is a 24-pin serial dot-matrix and flat-bed type impact printer. As this printer follows on DLQ-3000 (MINERVA+), the main future is almost same as DLQ-3000 (MINERVA). The main features are ; t Two built-in and one optional I/F Bi-Directional Parallel Interface (IEEE-1284 nibble mode) Serial Interface Type-B Interface (Option)
The exterior view of DLQ-3000 (MINERVA+) is the same as DLQ-3000 (MINERVA).
Rev.A
1-1
Product Description
DLQ-3000 (MINERVA+)
1.2 INTERFACE OVERVIEW
The printer provides an 8-bit Bi-directional parallel interface and serial interface as standard. Moreover, it is possible to interface to various computers using the optional type-B interface board. This section describes the specifications of the standard interfaces.
1.2.1 Parallel Interface Specifications
1.2.1.1 Forward Channel
Transmission mode: Synchronization: Handshaking: Signal level: Adaptable connector: Data transmission timing: 8-bit parallel, IEEE-1284 compatible mode By STROBE pulse By BUSY and ACKNLG signal TTL-compatible level, IEEE-1284 level 1 device 57-30360 (Amphenol) or equivalent See Figure 1-1.
Note:
Transition time (rise time and fall time) of every input signal must be less than 200 ns and every output signal must be less than 120 ns.
The BUSY signal is at a HIGH level before either -ERROR signal is at a LOW level or the PE signal is at a HIGH level until all these signals return to their inactive state. The BUSY signal is at a HIGH level in the following cases: During data reception (see the figure above) When the input buffer is full When the INIT input signal is active During initialization When the ERROR signal is active In the self-test mode In the SelecType When the parallel interface is not selected.
The ERROR signal is at a LOW level when the printer is in one of the following conditions: Printer hardware error (fatal error) A paper-out error Release lever operation error
PE signal is at a HIGH level during paper out error.
D ATA DATA (n) DATA (n+1)
-STORBE
500 ns (min.)
500 ns (min.)
500 ns (min.)
0 (min.)
B US Y
-ACKNLG
0 (min.) 500 ns (max.)
0 (min.)
500 ns ~10 µs
Figure 1-1. Data Transmission Timing
1-2
Rev.A
DLQ-3000 (MINERVA+)
Product Description
Table 1-1 shows the connector pin assignments and signal functions for the 8-bit parallel interface.
Table 1-1. Signal and Connector Pin Assignments for Parallel Interface (Forward Channel)
Pin No. 1 Signal Name STROBE Return GND Pin 19 I/O In Description Strobe pulse. Input data is latched at the falling edge of this signal. Parallel input data to the printer. Active-HIGH input. LSB: DATA1 MSB: DATA8 Indicates that data has been received and the printer is ready to accept more data. A HIGH level means the printer cannot accept further data. A HIGH level means a paper-out error. Always the logical opposite of the ERROR signal. Always at a HIGH level (pulled up to +5 V through a 1K-ohm resistor). Auto feed execution means that a line feed is automatically performed upon input of a CR code. Checked when the printer is initialized. Active-LOW signal. Initialize printer. Minimum 50 µs pulse is necessary. Active-LOW signal. A LOW level means that an error has occurred. Not used. Pulled up to +5V and shorted to +5V via Schottky diode, making these signals appear low to the host when the printer is turned off. Chassis GND Signal GND Not used. Not connected.
2-9
DATA1-8
20-27
In
10 11 12 13
ACKNLG BUSY PE SLCT
28 29 30 -
Out Out Out Out
14
AFXT
-
In
31 32 36 18,35 17 16,19-30, 33 15,34
INIT ERROR SLIN Logic H Chassis GND GND NC
16 30 -
In Out In Out -
Note:
In/Out refers to the direction of signal flow as viewed from the printer.
Rev.A
1-3
Product Description
DLQ-3000 (MINERVA+)
1.2.1.2 Reverse Channel
Transmission mode: Synchronization: Handshaking: Signal level: Data transmission timing: Extensibility request: 8-bit parallel, IEEE-1284 nibble mode Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification IEEE-1284 level 1 device Refer to the IEEE-1284 specification the printer responds to the extensibility request in the affirmative, when the request is 00H or 04H, which mean; 00H: Request nibble mode of reverse channel transfer 04H: Request device ID in nibble mode of reverse channel
Transfer Device ID:
Table 1-2. Transfer ID
ESC/P2 [00H][33H] MFG:EPSON; CMD:ESCPL2-00; MDL:DLQ-3000; CLS:PRINTER; IBM 2391 Plus [00H][34H] MFG:EPSON; CMD:PRPXL24-01; MDL:DLQ-3000; CLS:PRINTER;
1-4
Rev.A
DLQ-3000 (MINERVA+)
Product Description
Table 1-3 shows the connector pin assignments and signal functions for the 8-bit parallel interface.
Table 1-3. Signal and Connector Pin Assignments for Parallel Interface (Reverse Channel)
Pin No. 1 Signal Name Host Clk Return GND Pin 19 I/O In Description Host clock signal. Parallel input data to the printer. Active-HIGH input. LSB: DATA1 MSB: DATA8 Printer clock signal Printer BUSY signal and reverse channel transfer data bit 3 or 7. Acknowledge data request signal and reverse channel transfer data bit 2 or 6. Xflag signal and reverse channel transfer data bit 1 or 5. Host busy signal Not used. Data available signal and reverse channel transfer data bit 0 or 4. 1284 active signal A high signal indicates that all other signals source by the peripheral are in a valid state. This line is pulled up to +5V through 3.3K resister. Chassis GND Signal GND Not used. Not connected.
2-9
DATA 1-8
20-27
In
10 11 12 13 14 31 32 36 18
Ptr Clk PtrBusy / Data Bit -3,7 Ack Data Req / Data Bit -2,6 Xflag / Data Bit -1,5 Host Busy INIT Data Avail / Data Bit -0,4 1284-Active Logic H
28 29 28 28 30 30 29 30 -
Out Out Out Out In In Out In Out
35 17
+5V Chassis
-
Out -
16,19-30 GND ,33 15,34 NC
Note:
In/Out refers to the direction of signal flow as viewed from the printer.
Rev.A
1-5
Product Description
DLQ-3000 (MINERVA+)
1.5 MAIN COMPONENTS
The main components of the DLQ-3000 are designed for easy removal and repair. The main components are : s BOARD ASSY., C124 MAIN-B : s BOARD ASSY., C124 PSB/PSE : s C124 SUB board s M-5L60 Printer Mechanism s Control Panel s Housing control board power supply board(100 ~ 120V/220 ~ 240V)
1.5.1 BOARD ASSY., C124 MAIN-B
The main board consists of a µPD70433, an E05A88, Program (256 KB Flash memory), CG (8M for Japan / 4 M for other countries), D-RAMs (256 MB), Bi-Directional Interface circuit, etc.
1.5.2 BOARD ASSY., C124 PSB/PSE
This Power supply board consists of two transformers, two switching FETs, a switching regulator IC, diode bridge, etc. This board has ratings for input AC voltages.
1.5.3 Printer Mechanism
This printer mechanism consists of a 24-pin impact dot head, PF motor , CR motor, color ribbon shift motor, HP/PG sensor, paper width/paper end sensor, etc.
1.4.5 Housing Assembly
This printer Housing consists of the COVER ASSY.,PRINTER, the HOUSING ASSY.,UPPER, the HOUSING ASSY.,LOWER and FRAME ASSY.,BOTTOM.
1-6
Rev.A
DLQ-3000 (MINERVA+) Service Manual
Appendix
A.1 CONNECTOR SUMMARY
This section describes the component connection and detailed pin assignments of each connector of the units. Figure A-1 shows the component connections of the DLQ-3000, and Table A-1 lists the connector assignments and reference tables.
C12 4PSB/PSE
AC
temp.
C1 24 MAIN -B
CN1 0 -1 2 CN 15,16
CN9
Printer Mechanism
CN1 CN2 CN3 CS Mo t o r Film Ribb on S e nsor Color Ribb o n S en sor P E WS en sor A s semb ly
P rinthead
Fan motor
PARALLEL I/F SERIAL I/F
TYPE-B I/F
CN7 CN8
CN4
CN6
CR Motor Assembly P F Motor Assembly
Panel Cover Open S ensor
CN13 CN14
CN 5
LOA D S ensor A sse mbly Extern al Fan P F S e nsor HP S ens or
Figure A-1. Cable Connection
Rev.A
A-1
Appendix
Table A-2 through appendix lists connector pin assignments.
DLQ-3000 (MINERVA+) Service Manual
Table A-1. Connector Assignment
Board Connector Pin 20 20 14 11 13 36 36 25 2 4 6 6 10 2 2 2 Description Printhead drive signal output Printhead drive signal output CS motor, Color ribbon / film ribbon / CS home sensor CR motor, PF motor output PG/ REL/COVER OPEN/LOAD sensor, External fan motor Type -B I/F Bi-Directional parallel I/F Serial I/F Power supply board fan motor Power supply input (+5V) Power supply input (+35V) Power supply input (+35V) Control panel CR motor common (cover open sensor) Power supply board temp. Power supply board temp. From CN1 to Printhead output signal From CN2 to Printhead output signal From CN3 to CS motor, Color ribbon / film ribbon / CS home sensor 2 10 6 AC input line DC output ( +5V, +35V ) DC output ( +35V )
CN 1 CN 2 CN 3 CN 4 CN 5 CN 6 BOARD ASSY.,C124 MAIN-B CN 7 CN 8 CN 9 CN 10 CN 11 CN 12 CN 13 CN 14 CN 15 CN 16 CN 4 C124 SUB BOARD CN 5 CN 6 BOARD ASSY., C124 PSB / PSE CN 1 CN 2 CN 3
A-2
Rev.A
DLQ-3000 (MINERVA+) Service Manual
Appendix
Table A-2. Connector Pin Assignment - CN7
Pin 1 2-9 10 I/O I I O Name STOBE / Host Clk DATA 0-7 ACKNLG / PtrClk BUSY / PtrBusy, Data Bit-3,7 PE / AckDataReq, Data Bit-2,6 SLCT / Xflag, Data Bit-1,5 AFXT / Host Busy NC GND Chassis GND Logic-H GND INIT / INIT ERROR / data avail, data bit-0,4 GND NC +5V SLIN / 1284-Active Description (Forward / Reverse) Data strobe / Host clock signal Parallel data bit 0 to 7 Acknowledge / Printer clock signal
11
O
Printer busy and reverse channel transfer data bit 3 or 7
12
O
Paper out / Acknowledge data request and reverse channel transfer data bit 2 or 6 Always HIGH at printer power on / Xflag and reverse channel transfer data bit 1 or 5 Not used / Host busy signal Not used and not connected. Signal Ground Chassis ground Pulled up 5V / A HIGH signal indicates that all other signals soursed by the peripheral are in valid state. Signal Ground Initialize signal / Not used Error signal / Data available and reverse channel data bit 0,4 Signal Ground Not used and not connected. Pulled up 5V Not used. / 1284-active signal
13 14 15 16 17 18 19-30 31 32 33 34 35 36
O I O I O O I
Note:
The signal direction I/O are viewed from the connector on the board.
Rev.A
A-3
DLQ-3000 (MINERVA+) Service Manual
Appendix
CN1 He ad Con n 1 from mainboard
COM14 20 COM1 0/1 8 13 COM6/22 2 COM2 14 COM23 10 COM3/19 4 COM7/15 6 COM11 3 HD2 HD3 HD6 HD7 HD10 HD11 HD14 HD15 HD18 HD19 HD22 HD23 17 9 15 19 16 11 12 1 18 8 7 5
20 13 2 14 10 4 6 3
COM14 COM10/18 COM6/22 COM2 COM23 COM3/19 COM7/15 COM11 17 9 15 19 16 11 12 1 18 8 7 5 HD2 HD3 HD6 HD7 HD10 HD11 HD14 HD15 HD18 HD19 HD22 HD23
CN 4 Head conn 1 to Hea d
COM12 /16 COM8/20 COM4/24 COM1/21 COM5/17 COM9/13 CN2 Head Conn 2 from mainboard HD1 HD4 HD5 HD8 HD9 HD12 HD13 HD16 HD17 HD20 HD21 HD24 TE NP TE MP
10 15 11 1 7 2 13 17 3 18 5 12 4 16 5 9 8 14 19 20
10 15 11 1 7 2
COM12/16 COM8/20 COM4/24 COM1/21 COM5/17 COM9/13 13 17 3 18 5 12 4 6 5 9 8 14 19 20 HD1 HD4 HD5 HD8 HD9 HD12 HD13 HD16 HD17 HD20 HD21 HD24 TEMP TEMP CN 5 Hea d con n 2 to Head
+5V 1 PEWR/L PWLCOM PW RC OM CN1 Head Con n 1 from mainboard RFCOM RFA RF_A RFB RF_B CSHOME GND COLOR FILM GND
5 6 2 7 11 9 10 8 3 4 13 14 12
1 5 5 2 7 11 9 10 8 3 4 13 14 12
+5v PEWR/L PWLCOM PWRCOM RFCOM RFA RF_A RFB RF_B CSHOME GND COLOR FILM GND
CN 4 He ad co nn 1 to He ad
Figure A-4. C124 MAIN SUB Board Circuit Diagram
Rev.A A-9
R 158 C 159 R1 81
R159
R160
10 0K 4.75 K
1 0K
L P20 1-2R5SD
R153 D155
L1 51
A-10
560 p T101 R 131 TL49 4 R161 R1 51
84 .5K 0 .2 2
ZD1 55 H ZS 6A1L
Q 151 A1 469
ERC81
- 004
R152
RB V-2506
DB101 1
IC15 1
2W
7
20 14 E RA 82-0 04
R162 D152
Appendix
3
R118
4
0.22/2W 470/2W
X2
B151 1 00
1111111 65432109 + R OV C E E IO C 221 IC C 22
C1 54 1000u 10 V R 164
2
C111
100K/1W
4
13
C 113 R 111 D151 R167 R16 6
5 6
G + -D I FI T C R N C 1 1B C T T D 1 12345678
TF
2 00K
R16 3
2.2 5W 2.2 5W
560u/200V
300
R2
B10 1
TY10 1 *
3K
C 158
R3
3300p/1.2KV C 115
3.6K
R16 5 1k C181
152 Q A1 680
SM12G Z47A
C 31 2 20 0p
C N2 9 10 7 8
0 .1 u
+5V /1.0A GL
C2
0 .1u
F
Q *101 K1 855
300/1W
E RA82-00 4 D 101 3
D131 E RA 82-00 4
C8
3
10
1
0.01u
F 2 10P1 0Q
2200p
0.22u
C 116
V 3300p/1.2KC114
R1 15
Q 102 C4408 Q 103 A 101 5
R113
ch. B + 35V/1 .5A G pB
1 2 3 4 5 6
C3
1 SS1 20
R 116 C151 C152 R 119 10 K R 114
C4
2 70 2 70 27 0 IC10 NJM 431
R 112 C157 R1 17 1
4 700p D102
12 9
3 30 0p
3 30 0p
4.7k
R1 70 1 0K R 172 R171 5.6K
R121
3300u/50V X2
1.5kR173 1.2K
Q 153 A10 15
4.7K
1
C 1 112 100u 2 5V 2
4
R120
L1 2
2.4K
3 2
11
ELF18 D8 50C 3 1
0.30/3W
1 4
1 2
R157
470u/6.3V
R182 R174 1 0K R 175
C1
P C101
R 156
H ZS6A-2
2K
0.68u
R12 4 D103
3
3 00 H ZS6A-2 H ZS 6A-2 T LP52 1-1
D 181
2.7K
C 1815
ZD153
C 117 22 00U/ 16 V R13 2
51 0
Z D1 85 Z D184 HZS6A-2 Z D1 83 HZS6A-2 ZD182
Q 154 Q 155
H ZS 7B-2
R1 3 90K
220/2W
39
R12 3
1 R232
E RA82-0 04
D TC1 14ES
1SS120 H ZS 6A-2
Z D1 51
Z D1 81
F1
R 126 D 104
1 0A/12 5V ERB43 -0 4
2
R 169 C118 R 168 10k
1 D203 E RA 82 -004
PC10 2 6 5
1
ZD152 RD39JSAB 3
1
R1 25 27 K
2
100K/1W
4 0.01u
51 0
D154
L
D2 04
N
TLP54 1G 1 SS1 20
D254 T 201
C N1
ERB43-04 1SS120
D153
R231
7
1S S120
C211
R 218
0.22/2W
5 6
D252 E RA82-0 04
1 00k/ 1W
14
R 154
560u/200V
ZD154
C156
2K
R155 20 K HZS6A-2
4
C155
3300p/1.2KV C215
B2 01
13
C213 R211 D251 1 F10P10Q
0. 1u
F
33 u/16 V
Q *201 K 185 5
0. 1u
F
300/1W
10 3
D231 E RA82-00 4
3
2
C21 6 R215
Figure A-5. C124 PSB Board Circuit Diagram
Q 202 C44 08 Q 203 A 1 015
12
R213 C 251 D202
C21 3300p/1.2KV 4 4 70 0p
ERA 82-004 D 201
ch.A +35V /1.5 A G pA
R272 A10 15
CN3 1 2 3 4 5 6
2 70
R216
1SS 120 2 70
R 214 R 217 1
C 252
Q 253 3300u/50V X2
R 271
5.6K 1.5kR273 1.2K
R270
R221 R2 19 10 K
4.7k
9
4.7K
2 70
NJM 4 31 2
C2 12 IC20 1 3 1 100u 25V
R2 20
1 0K
2.4K
2 1 4 3
TLP 521-1
R 212
11
Heatsink
(TY 101,Q101,Q 201,D151,D25 1)
0.30/3W
Not mounted (C181)
P C201
1 2
R 257
R256
3 00 5 10
D28 1
DLQ-3000 (MINERVA+) Service Manual
Rev.A
1S S120
L1 51 A1 469 R161
Q151 LP201-2R5SD
R1 53
Rev.A
R1 31
7
DB101
1 D5SBA 60
T101
65 4 3 2 10 9 + R OV C E E I OC C 2 2 1 I 22 C
R160 R1 58 R159 1 00K 4.75K 1 0K C1 59 ZD155 R1 81 560 p 8 4.5K HZS6A1L IC151 T L4 94 1 1 1 1 1 1 1 D152
14
3
4
2
C31 4 70 0p R 128
0.22/2W
5 6
C111
100K/1W
ERA82 -004
4
+ -D G I FI T C R N C 1 1B C T T D 1 12 3 4 5 67 8
C15 4 1000u 10 V
CN2 9
4.7
B101 C 115
13 * Q101
4.7 5W
R118 R163
4.7 5W
150u/400V 100K/1W
D 151
3
10 1 F10P1 0Q 2 3
TF 5W R2
R3 R4 TY101 *
R16 6 20 0K R16 7
3.6K
C 158
0.2 2 D1 55 2W 20 ERC81 R151 R152 - 004 470/2W R164 X2 1 00 R 162 B1 51 3 00 R 165 Q152 0 A 168
1k
10
7 8
+5V/1.0A
GL
C 181 0. 1u
C2 C11 6
C4408
S M8JZ47A K16 92 R 111 C 113 0. 1u F 300/1W
C8 470 0p 3K
3300p/1.2KV 0.01u
0.22u
3300p/1.2K V
C3 1SS12 0 R 121
12 9
C4 C151 C1 52
C9 4 70 0p C1 14 D102 47 00p R170 1 0K R172 5.6K R1 71 D1 31 ERA82-004
Q102
1 ch.B 2 +35V /1.5 A 3 4 5 Gp B 6
47 00p 4 700p
ERA82 -004 D101 R1 15 Q103 A1015 2 70 R113 R 116 4.7k 27 0 R 114 27 0
2
11
2
4.7K
R120
1
R119 1 0K R 117
3300u/50V X2
A 101 5
Q153
1.5kR173
1.2K
4
L1
ELF18D8 50Z 1
2
3
2.4K R 112
C157
C112 1 10 0u IC101 3 25V NJM 4 31
0 .68/3W
1 PC101
470u/6.3V
R156
1
DLQ-3000 (MINERVA+) Service Manual
C1 C117
R174 1 0K R175
R 182 2K
ZD153
0.68u
R124 R 132 R123 D104 ER B38-05 R126
1 2 39
2200u/16V
D103
2
3 00
2.7K
R1
5 4 TLP634
390K /0.5W
D20 3 ERA82-00 4 C118 R1 69 510 D 154 1SS1 20 D254 1 SS12 0 D153 1SS 120 R 154 D 252 ERA82-004 2K R155 20K
F 1
220/2W
R2321 ERA82-0 04 (D4-GB-L F2) 1 SS120
PC102 6 5 ZD151 H ZS6A-2 ZD181 HZS 6A-2
R157 510 D18 1
ZD185 HZS6A-2 Z D1 84 HZS6A-2 ZD183 HZS6A-2 ZD182 HZ S6A-2
Q154
C1815
Q155
DTC1 14ES
HZS7B-2
F1 T5A H/250V
R127 R168 10 k R 125 10 K T LP647J(D4 -L F 2)
ZD152 RD39JSAB3
1
2
100K/1W 100K/1W
0.01u 4
L
N
CN1
204 DERB38 -0 5 R231
7
T20 1
R228
0.22/2W
5 6
14
C211
4
100K/1W
C 155 0 .1 u
13 1 10 3
150u/400V
C21 5 B2 01 R 218
ZD154 C 156 HZS6A-2 3 3 u/16 V
3300p/1.2KV
Q201 *
K1 692
3
100K/1W
R211 C213 0.1 u F 300/1W
Heat sin k (TY1 01,Q101,Q20 1,D15 1,D251) C21 6
D251 F 10 P10Q
2
3300p/1.2KV
Figure A-6. C124 PSE Board Circuit Diagram
Q202
D231 ERA82-004
12 9
Not mounted
C214 D 202 47 00p 1SS12 0 R213 4.7k R217
1
ch.A + 35V/1.5A Gp A R 272 C 251 C252
(C181)
C4408 R 215
ERA8 2-004 D 201 Q203 A1 015
CN3 1 2 3 4 5 6
Q253
A 10 15
R221
R219 10 K R 214 2 70
1 C212 10 0u I C201 NJM4 31 3 2 2 5V
2 70 R216 270
R 271
5.6K
4.7K
R220
3300u/50V X2
1.5k R273 R2 70 1.2K 10K
2.4K
R 212
2 1 P C201 5 4 TLP634
11
0.68/3W
R256
1 2
R257 51 0 D281
3 00
Appendix
A-11
(D 4-GB-LF2) 1SS1 20
EPSON