CH955-67030 - Printmech PCA PCB05

CH955-67030 – Print mechanism board (Printmech PCA PCB05) – HP Designjet L25500

The print mechanism board (Printmech PCA PCB05, CH955-67030) is fitted to HP Latex printers. It manages the electronics of the print mechanism and interfaces with the main board.

The HP parts list designates it “Printmech PCA – Controls motors and fans”: it drives the motors and the fans and communicates with the “Sausalito” Engine PCA board CH955-67021.

Technical specifications

• OEM reference: CH955-67030
• Manufacturer: HP
• Part type: Print mechanism board (PCA)
• Manufacturer designation: Printmech PCA – Controls motors and fans
• Board marking: PCB05
• Firmware: After replacement, a 74:04 error requires a firmware update if it does not support the board revision
• Location: Electronics bay (E-box)
• Shipping: Shipped ready to install

Compatibility & use

• HP Designjet L25500 42-inch (CH955A)
• HP Designjet L25500 60-inch (CH956A)

Function

• Drives the motors (including the take-up motor) and the fans
• Controls the Primer servo
• Communicates with the Sausalito Engine PCA board
• Ensures the electronic control of a sub-system
• Passes the signals to the main board
• Acts as an interface between the firmware and the hardware

Signs of wear

• System error 01.1.10: the Printmech PCA no longer responds (check the cable to the Sausalito board, then replace the board)
• Error 45.03:00: take-up motor cables to the Printmech
• Errors 46:03 and 46:10 (Primer servo) after checking for obstruction
• Error 74:04: firmware not supporting the fitted board
• Sub-system not driven
• Electronic errors
• Loss of internal communication
• Erratic behaviour or machine stops

Replacing this part restores the machine to proper working order.

Equivalent references : CH956-60001 · CH956-80001

Related parts

• CH955-67021 — “Sausalito” Engine PCA board linked by cable
• CH955-67009 — Interconnect PCA board, replaced after the Printmech in the 46:xx procedures

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.