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d) DC motor driver (IC504/505)
The motor driver IC is for driving the DC motor (paper feed motor and carriage motor).
This driver is a PWM (pulse-width modulation) IC that changes the current's pulse
width to control the output. It thereby controls the motor. The pulse-width control is
defined by the serial data (10 bit) from the printer controller.
e) EEPROM (IC402)
The 2 Kbit EEPROM controlled by the printer controller records the waste-ink
absorption amount, page count, and BJ cartridge removal/installation count. The
printer reads the EEPROM contents when AC power is supplied and records the data
when the power is turned off.
f) Control ROM (IC102)
The 8-bit control ROM is written with a printer control program.
g) Stepping motor driver IC (IC503)
This is a driver IC for constant-current driving of the ASF motor.
The driving method is 1-2-phase driving.
3-21
S600
Part 3: Technical Reference
T
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c
hnical
Ref
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Содержание PowerShot S500 Digital ELPH
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Страница 24: ...2 3 S600 Part 2 Troubleshooting Troubleshooting Figure 2 2 Nozzle Check Pattern Printout ...
Страница 35: ...3 2 Exploded View Part 2 Troubleshooting S600 2 14 Figure 2 3 Exploded View ...
Страница 87: ...PRINTED IN JAPAN IMPRIME AU JAPON CANON INC The printing paper contains 100 waste paper ...