Citizen Tz30-m01 Driver ((better)) [LATEST]

def cut(self): self.ser.write(b'\x1D\x56\x01')

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.

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

return 0;

tz30_send(dev, kbuf, count); kfree(kbuf); return count; def cut(self): self

Application → ioctl/write → Driver Core → FIFO Buffer → HAL (UART/GPIO) → TZ30-M01 | Interface | Pinout | Mode | |-----------|----------------------------|--------------------------| | TTL Serial| TX, RX, GND, DTR (busy) | 9600–115200 baud, 8N1 | | Parallel | 8-bit data, STB, BUSY, ACK | Compatibility mode | 3. Control Command Set (ESC/POS Subset) The TZ30-M01 emulates a subset of ESC/POS. Below are the core driver commands implemented. 3.1. Initialization | Command | Hex Sequence | Description | |---------|------------------|------------------------------| | Reset | 1B 40 | Clear buffer, reset margins | | Wake | 1B 1A 01 | Exit sleep/low-power mode | 3.2. Printing | Command | Hex Sequence | Description | |------------------------|---------------------|--------------------------------------| | Print text | Raw ASCII | Prints stored data in buffer | | Line feed | 0A | Feeds 1 line (4.23 mm) | | Full cut | 1D 56 01 | Full cut after print | | Partial cut (keep) | 1D 56 00 | Partial cut (one point remains) | | Paper feed (dots) | 1B 4A n | Feed n dots (max 255) | 3.3. Barcode / Graphics (Optional) | Command | Hex Sequence | Description | |----------------------|------------------------------|----------------------------| | Print raster bitmap | 1D 76 30 m xL xH yL yH d1…dk | 203 dpi raster graphic | | Code128 barcode | 1D 6B 73 m d1…dk NUL | Barcode generation | 3.4. Status Read (Serial) | Command | Hex | Response (1 byte) | Bit mask meaning | |--------------|-----|------------------|------------------| | Real-time status | 10 04 01 | 0x00–0xFF | Bit0=Paper low, Bit1=Paper out, Bit2=Cover open, Bit3=Head overtemp, Bit6=Busy | 4. Linux Kernel Driver (Pseudo-implementation) Below is a skeletal Linux cdev driver handling the TZ30-M01 via UART.

// 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; Conclusion The Citizen TZ30-M01 driver must implement a

def print_line(self, text): self.ser.write(text.encode() + b'\n')