G Connector; G Switch; G Jumpers; G Individual Ics' Functions - Konica Minolta IP-421 Service Handbook

Chapter 4 Appendices

G Connector

CN1: Expansion memory
CN3: PS-341 (option)
CN4: Printer relay board
CN5: Printer relay board
CN7: PCI relay board
CN8: PCI relay board
CN9: Parallel port connector

G Switch

SW1: Resets system. (only for development purpose)
SW2: Switch boot system. (only for development purpose) No need to use the switch.

G Jumpers

No need to use the jumpers.
JP2: Not installed (no function)
JP3: For production purpose

G Individual ICs' functions

CPU: Central processing unit
BootROM: System booting-up parameter
KPC01: Image rotation through 90 degrees/error diffusion processing
PPBC: Bridge from each PCIset to the PCI bus
PCIset: Bridge from different points to PPBC
4-8 IP-421 PRINT CONTROLLER
No need to operate the switch.