C206 Main-B, C255 Main (For Stylus Color 440) - Epson Stylus Color 640 Service Manual

EPSON Stylus Color 440/640/740

2.2.2 C206 Main-B, C255 Main (for Stylus Color 440)

Various DC voltage generated on the C206 PSB/PSE board is added
various signals in order to drive the printer function on the C206 main-B,
C255 main, board the drive of CR/PF (Pump) motor and printing head is
performed. Following figure shows the circuit diagram for Stylus Color
440.
Chapter 2 Operating Principles
Head
P-ROM D-RAM
(IC3) (IC4)
Address
Data
TPM95C061
E05B44
(IC1)
(IC2)
Address
Data
C206 Main-B, C255 Main Board Block for Stylus Color 440
CN8 HD FFC
CR1
Batt1
Q7&Q9
CN1 Parallel
Timer
Counter
Common
(IC5)
Driver
(IC6)
EEPROM
Reset IC
(IC11)
(IC9)
CN3
CN11
CN5
CN4
HP Sensor
PE Sensor
Figure 2-17.
CR Motor
PF Motor
CN6
CN7
Motor Motor
Driver Driver
(IC14) (IC15)
C206 PNL
ASF Sensor
Revision A
60