Intermec EasyCoder PF4i Service Manual

156 Intermec EasyCoder PF2i, PF4i, and PF4i Compact Industrial—Service Manual
Chapter 13—CPU Board
1-971630-25 CPU Board; Thermal Printhead Interface (Schematics #4)
5V
R425
DDDDD
LM358M
U41
EN
&
AHCT541
VCC=5V;GND=DGND
EN
&
AHCT541
VCC=5V;GND=DGND
R409
R406
R407
R408
R400 R401
R423
R422
R402
R412 R413 R414
TPHV
D
C404
R403 R404 R405
R410 R411
R418 R419
R415 R416 R417
R420 R421
R424
D
C407 D
R427R426
R428 R429
C408
C409
D
PP40
D40
L400 L402 L415
PP41
R430
T42
R431 R432 R433 R434 R435 R436 R437 R438 R439 R440
D
24V_S
D
J40
C405
C406
D
U40
D C403
T41
D
T40
T44
T43
C401
+
C402
U41 LM358M
T47
C400 D
D
T46T45
C_1
D
DD
DATA8 DATA7 DATA6 DATA5
DOT RESISTANCE TEST CIRCUIT
SAME TYPE
VCC STROBE2 GND VCC LATCH STROBE1 THERM2 I2CCLK GND GND GND GND DATA2 DATA3 I2CDATA GND GND DATA1 CLOCK THERM1 DATA4 GND
BOARD MUST BY OF THE CORRESPONDING DIODE ON PSU
THERMAL PRINT HEAD (TPH)
TPH_MEAS_EN
26 24 22 20 18 16 14 12 10 9 8 7 6 5 4 3 2 1 11 13 15 17 19 21 23 25
TPH_RES
15
TPH_DATA<8..1>
B
T
PH_GAIN2
T
PH_GAIN1
T
PH_GAIN0
B
CE
CE
B
CE
THERM
2
OUT
IN
ADJ
TPH_STRB_N SDA
8 7 5 4 3 1
TPH_CLK SCL
TPH_CAL1 TPH_CAL0 TPH_CAL2
TPH_LATCH_N
5V_TPH
GND_TPH
6
B
CE
1
32
B
CE
B
CE
B
CE
B
CE
2
4
1
3
8
6
7
5
U42
9 8 7 6 5 4 3 2 1
19
11 12 13 14 15 16 17 18
U43
4 3 2 5 6 7 8 9 1
19
16 17 18 14 13 12
11

Intermec EasyCoder PF4i Specifications

General

Print technology	Direct thermal
Maximum resolution	203 x 203 DPI
Standard interfaces	RS-232, USB 2.0
Internal memory	16 MB
Power consumption (standby)	15 W
Power consumption (printing)	300 W
Media thickness	3/7.5 mm
Maximum label width	104 mm
Maximum label length	0.4 m
Maximum roll diameter	152.4 /213 mm
Maximum internal memory	1 GB
Supported network protocols	TCP/IP, LPR/LPD, FTP, BOOTP, DHCP, HTTP, SNMPv3, SMTP, SNMP-MIB II
Product color	Blue, Silver
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	40 - 104 °F
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Depth	405 mm
Width	244 mm
Height	178 mm
Weight	8000 g