HP C9128-60001 USB Parallel Formatter Board HP LaserJet 1200 Printer Card

HP C9128-60001 USB Parallel Formatter Board HP LaserJet 1200 Printer Card

The HP C9128-60001 is the USB and parallel interface formatter board for the HP LaserJet 1200 laser printer. This internal card handles communication between the host computer and the printer's engine, providing both a USB Type-B port and an IEEE 1284 parallel (Centronics 36-pin) port. It is a direct replacement board for LaserJet 1200 printers that have a failed or missing formatter.

Specifications & What's Included

• Part Number: C9128-60001
• Board Assembly Number: C7857-80001 Rev A
• Compatible Model: HP LaserJet 1200
• Interface 1: USB Type-B
• Interface 2: IEEE 1284 Parallel — 36-pin Centronics connector
• Form Factor: Internal printer formatter card/module
• Board only — no cables, manual, or mounting hardware included

Applications

The formatter board is the controller brain of a laser printer — it receives the print job data from the host PC over USB or parallel, processes it, and drives the printer engine to produce output. The HP LaserJet 1200 was a popular workgroup monochrome laser printer from the early 2000s, widely deployed in small offices and home offices due to its compact size and reliable performance. Formatter boards like this one are commonly sought as replacement parts when a LaserJet 1200 stops communicating with the host computer, shows a formatter error, or fails to initialize — conditions that typically indicate a failed formatter rather than a failed engine. This board supports both the USB interface (common on PCs of the era) and the legacy IEEE 1284 parallel port, making it compatible with a wide range of host systems from that period.