Driver Free - Citizen Tz30-m01

tz30_send(dev, kbuf, count); kfree(kbuf); return count;

def status(self): self.ser.write(b'\x10\x04\x01') return self.ser.read(1) tz = CitizenTZ30("/dev/ttyAMA0") tz.print_line("Receipt #123") tz.cut() | Test Case | Procedure | Expected Result | |-------------------------|------------------------------------------------|--------------------------------| | Basic print | Send "Test\n" | Text printed, paper advances | | Cut after print | Print line + full cut command | Paper fully severed | | Paper out handling | Remove paper, send data | Driver returns error, no print | | High-speed throughput | 1 MB of text at 200 mm/s | No buffer overflow, consistent | | Thermal runaway protect | Run continuous print > 30 sec | Driver throttles or pauses | 10. Appendix: Pinout (Example for TTL Serial) | Pin | Signal | Voltage | Direction | Notes | |-----|--------------|---------|-----------|---------------------------| | 1 | VCC (5V) | 5V | Input | Logic supply | | 2 | GND | 0V | - | Common ground | | 3 | TXD | 5V TTL | Output | Printer → Host (status) | | 4 | RXD | 5V TTL | Input | Host → Printer (commands) | | 5 | DTR (BUSY) | 5V TTL | Output | High = printer busy | | 6 | RESET (opt) | 5V TTL | Input | Low pulse >10 µs resets | | 7 | VH (24V) | 24V | Input | Printhead motor power | 11. Conclusion The Citizen TZ30-M01 driver must implement a reliable ESC/POS-compatible serial interface, real-time status monitoring, automatic cutter control, and thermal protection. The provided architecture and code examples serve as a foundation for embedded Linux, RTOS, or bare-metal integration. For exact timings and command extensions, refer to the official Citizen TZ30 series hardware manual. citizen tz30-m01 driver

def cut(self): self.ser.write(b'\x1D\x56\x01') The provided architecture and code examples serve as

1. Overview The Citizen TZ30-M01 is a high-speed, direct thermal printer mechanism designed for integration into kiosks, POS systems, ticket validators, and medical devices. It features a 3-inch (80mm) print width, auto-cutter support, and low-voltage DC operation. This document outlines the driver architecture, control logic, and hardware abstraction for the mechanism. Overview The Citizen TZ30-M01 is a high-speed, direct

// citizen_tz30.c static ssize_t tz30_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) struct tz30_device *dev = filp->private_data; u8 *kbuf = kmalloc(count, GFP_KERNEL); if(copy_from_user(kbuf, buf, count)) return -EFAULT;

static long tz30_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) struct tz30_device *dev = filp->private_data; switch(cmd) case TZ30_CMD_CUT: tz30_send(dev, "\x1D\x56\x01", 3); // full cut break; case TZ30_CMD_STATUS: return tz30_get_status(dev);