Ricoh A-P4, Service Manual

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The controller controls all applications. To add the optional applications, an SD card must be inserted in
the SD card slot of the controller.
Trumpet ASIC: Contains the dedicated GW controller chips of the shared resources (the CPU, memory,
and HDD hardware) for the printing function.
• CPU. The central processing unit that controls the operation of the controller board.
• HDD. The interface for connection of the flat film cable connection to the HDD unit.
• SD (Bootable C3). Service slot for firmware version updates, moving applications to other SD cards,
and downloading/uploading NVRAM contents.
• DDR SDRAM. The image memory for the printer function where image compression, image rotation
and other operations are done.
Quena ASIC: Controls the following functions: USB, Ethernet, PCI (optional boards for Wireless LAN,
Centronics, and Gigabit Ethernet), debug serial, I2C, applications on SD cards mounted in an SD card
slot, and the energy save features.
• SD. This is the interface for SD card slot.
• Board Option Slots 1, 2. Only one of the following options can be installed in either Slot 1 or Slot 2:
IEEE1284 Interface Board (Centronics), IEEE802.11b G813 (Wireless LAN).
• Flash ROM. Stores the program. Maximum capacity: 32 MB.
• USB. Built into the controller. Provides the interface for USB 2.0 devices. Supports both low-speed
and high-speed modes.
• NIB. The Ethernet interface connection. Network support is built-into the controller. EEPROM. Stores
the data for the SP code settings.
• NVRAM. The memory that stores the system configuration and other information.
• HDD: A 3.5" HDD (more than 40 GB) can be connected using an IDE I/F. The hard disk is partitioned
as shown below.
How 40 GB Is Partitioned on the HDD
Item Use Space
At Power
OFF
Max.
Files
Max.
Pages
File Sys 1 Font download, form registration 500 MB Saved 6600 ---
File Sys 2 Job spooling 1 GB --- 5000 ---
File Sys 3 Print time recording 500 MB Erased 1000 ---
Images Temp Elec sorting 14 GB Erased 30 1000
Images LS Doc storage during printing 20 GB Saved 1000 9000
Images Overlay Image overlays 2 GB Saved 100 100
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