Epson Stylus C62 User Manual

EPSON Stylus C50/C60/C61/C62 Revision C
Operating Principles Electrical Circuit Operating Principles 56
2.2.3.4 Reset Regulator Circuit
Reset IC (IC3) on the main board monitors the two voltage: +5V for the logic line and
+42V for the drive line. Reset IC outputs the reset signal to CPU (IC8) in the following
case.
1. When the printer power is turned on and reset IC detects 4.2V on +5V line/35.8V
on +42V line, reset signal is output to perform the initialize operation correctly.
2. When the printer power is turned off and reset IC detects 4.2V on +5V line/35.8V
on +42V line, reset signal is output to stop the printer operation safely.
3. When reset IC detects 4.2V on +5V line/35.8V on +42V line with fail during the
printer operation, reset signal is output to stop the printer operation safely.
Unlike the previous products, the timer IC is not built in the reset IC and the Lithium
battery is not mounted on this MAIN board either.
.
Figure 2-30. Reset Regulator circuit block diagram
Main line for reset regulator IC has the following function.

VOUT1: Reset line

VOUT2: Interrupt signal

IN: +42V line monitoring line

VCC: +5V line monitoring line
*Unlike Stylus C50/C60, Stylus C61/C62 does not have exclusive regulator IC which
generates +3.3VDC from +5VDC. Instead of the regulator IC, this IC generates
+3.3VDC from +5VDC.
2.2.3.5 EEPROM Control Circuit
When the printer power is turned off, the following information is stored in EEPROM
(IC5) which is nonvolatile memory. And, when the printer power is on, CPU (IC8)
reads the information from EEPROM.
Information stored in EEPROM is listed below.

Various ink counter (I/C consumption counter, waste pad counter, etc.)

Mechanical setting value (Head ID, Bi-D adjustment, USB ID, etc.)
Refer to 7.1.2 that provides the detailed information stored in EEPROM.
Figure 2-31. EEPROM circuit diagram
EEPROM is connected to CPU with 4 lines and each line has the following function.

CS: Chip selection signal

CK: Data synchronism clock pulse

DI: Data writing line (serial data) at power off.

DO: Data reading line (serial data) at power on.
IC3
M62510FP
IC8
E01A37CB
+3.3V
+42V
4
+5V
VCC
Vin1
Vin2
3
12
IN
GND
GND
GND
GND
5
1
7
8
14
VOUT1
VOUT2
VD2
Vres
VOUT2
VOUT1
+1.5V
37
30
29
MRES
NMILVL
RESET
EEPROM-93C
(IC5)
E01A37CB
(IC8)
+.3.3V
VCC
NC
ORG
GND
CS
SK
DI
DO
C-P20
C-P21
C-P22
C-P23
136
135
134
133
1
2
3
4
8
7
6
5

Epson Stylus C62 Specifications

Printing

printing method	4-color (CMYK) drop-on-demand Micro Piezo ink jet technology
resolution (dots per inch)	Up to 5760 x 720 optimized dpi
print speed (black text memo)	14 ppm

Paper Handling

maximum paper size	up to 8.5" x 44"
input paper tray capacity	100 sheets/10 envelopes
envelope types	No. 10, DL, C6

Dimensions and Weight

dimensions (L x W x H)	18.8" x 10.2" x 7.1"
weight	7.5 lb
maximum printable area	8.26" x 10.76"