AR-161

(5) Reset circuit

This circuit detects ON/OFF of power to control start/stop of each circuit. The 5V voltage of the main PWB is detected by the reset IC to generate the reset signal.

When the power voltage reaches the specified level, the circuit operations are started. Before the power voltage falls below the specified level, the circuit operations are stopped to prevent against malfunctions.

(6) Main motor drive circuit

The main motor is driven by the MMD signal from ASIC. While the main motor is rotating, the MMD signal is driven to HIGH and passed through IC35 to the control circuit in the main motor to rotate the main motor. The /MMRDY signal is kept HIGH until the main motor speed reaches the specified rpm, and passed to the CPU.

(7) Mirror motor circuit

The mirror motor is a stepping motor, and it uses the IC29 and the constant current chopper control IC (SLA7027). For control, the CPU outputs the drive signal to the IC29 to drive the mirror motor with 1-2 phase excitement.

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Sharp AR-160, AR-161 specifications Reset circuit, Main motor drive circuit, Mirror motor circuit

AR-160, AR-161 specifications

The Sharp AR-161 and AR-160 are monochrome multifunction printers that have made a mark in the office equipment landscape with their impressive features, technologies, and characteristics. Both devices are designed to cater to the needs of small to medium-sized businesses that require reliable, efficient, and compact systems for their printing, copying, and scanning needs.

One of the main features of the Sharp AR-161 and AR-160 is their impressive speed. The AR-161 can produce up to 16 pages per minute (ppm), while the AR-160 offers a slightly lower output at 15 ppm. This makes both models suitable for environments where quick document turnaround is essential. Additionally, both machines have a warm-up time of approximately 20 seconds, ensuring minimal downtime when starting up.

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