Ricoh B230 Service Manual

							 
SM 6-73 B230/B237 
Detailed 
Descriptions 
6.12 PAPER EXIT 
6.12.1 OVERVIEW 
 
 
1. Junction gate 
2. Paper exit roller 1 
3. Paper overflow sensor   
4. Paper exit sensor 5. Paper exit roller 2 
6. To the inverter tray   
7. To the standard tray   
 
After fusing, the junction gate feeds paper to the standard paper tray or the inverter tray. 
The junction gate solenoid controls the junction gate as follows: 
ƒ  To the standard paper tray: The junction gate solenoid is off (default) 
ƒ  To the inverter tray: The junction gate solenoid is on. 
The fusing/paper exit motor drives the paper exit rollers.  
						

							 
B230/B237 6-74  SM 
6.12.2  JUNCTION GATE MECHANISM 
To the Standard Tray 
 
The paper exit rollers [A] feed paper to the standard tray. These rollers are driven by the 
fusing/paper exit motor [B].   
When a sheet of paper stays in the paper exit unit, the paper exit sensor [C] detects the 
paper jam and xxxxx is displayed.   
When outputs push up the tray full actuator [D], the paper overflow sensor [E] detects that 
standard trays is full of outputs and xxxx is displayed after a job end. 
To the Inverter Tray 
 
When paper is fed to the inverter tray, the junction gate [A] closes the paper path to the 
standard tray. And then, the inverter roller [B] feeds paper to the inverter tray. This roller is 
driven by the duplex inverter motor [C].    
						

							 
SM 6-75 B230/B237 
Detailed 
Descriptions 
6.13 DUPLEX UNIT 
6.13.1 OVERVIEW 
 
 
1. Duplex inverter roller 
2. Junction gate 
3. Duplex entrance sensor   
4. Duplex transport roller 1   
5. Duplex transport roller 2 6. Duplex exit sensor 
7. Duplex transport roller 3 
8. Standard tray 
9. Inverter tray 
 
ƒ  To print on the second side, the duplex inverter roller inverts the paper from the fusing 
unit and feeds it to the duplex unit. 
ƒ  The duplex unit feeds the inverted paper back to the paper feed section. 
ƒ  When both sides have been printed, the duplex inverter unit feeds the paper out to the 
standard tray.    
						

							 
B230/B237 6-76  SM 
6.13.2 DUPLEX DRIVE 
 
The duplex inverter motor [A] drives the following: 
ƒ  Duplex inverter roller [B] 
The duplex/bypass motor [C] drives the following: 
ƒ  Duplex transport roller 1 [D] 
ƒ  Duplex transport roller 1 [E] 
ƒ  Duplex transport roller 1 [F] 
The duplex entrance sensor [G] and duplex exit sensor [H] control the interleave movement 
and detect paper jams.  
						

							 
SM 6-77 B230/B237 
Detailed 
Descriptions 
6.13.3 INVERTER MECHANISM 
 
This machine uses the above switch back system for duplex printing. The drawing above 
right shows the paper feed for duplex printing.  
						

							 
B230/B237 6-78  SM 
6.13.4 DUPLEX OPERATION 
Up to A4/LT (81/2 x 11) LEF 
 
There are three sheets of paper in the paper feed path at the same time. The interleave 
method is used. 
The drawing above shows the paper movement with the interleave method for three sheets 
of paper. The printing is done as follows: 
  
						

							 
SM 6-79 B230/B237 
Detailed 
Descriptions 
From A4/LT (81/2 x 11) LEF to 400mm length 
 
There are two sheets of paper in the paper feed path at the same time. The interleave 
method is used. For sheets longer than 400 mm, there is no interleaving. 
The drawing above shows the paper movement with the interleave method for two sheets 
of paper. The printing is done as follows: 
  
						

							 
B230/B237 6-80  SM 
6.14 PRINTER FUNCTIONS 
6.14.1 OVERVIEW 
 
The controller is based on the GW architecture. 
CPU: RM7035C-600 MHz 
ASIC: 
This is one of the GW-architecture ASICs. : GW architecture ASIC.  It controls the interface 
with the CPU and controls these functions: memory, local bus interrupts, PCI bus, video 
data, HDD, SD card for booting and image processing. 
SHAKER:  
IO control ASIC. It controls the network, operation panel, USB port, SD cards. 
SDRAM DIMM (2 slots): 
The controller has 1024-MB resident SDRAM.   
Flash ROM:  
32 MB flash ROM programmed for the boot system. 
SD card (Boot):  
The 32 MB SD card installed in the SD card slot #1 includes the program for system, 
network application, printer, PCL5c, PS3 and RPCS applications and internal printer fonts.  
						

							 
SM 6-81 B230/B237 
Detailed 
Descriptions 
NVRAM: 
128 KB for the machine parameters, logged data and a record of the number of pages 
printed for each “User Code”. 
Network Interface:  
100BASE-TX/10BASE-T 
USB Interface:  
USB2.0 
IEEE 1394 Interface (option):  
Supports a data transfer speed of up to 400 Mbps. 
IEEE 1284 Interface (option):  
This is a parallel printer port.   
IEEE 802.11b (option):  
This lets you connect the machine to a wireless network. 
Bluetooth (option):  
This lets you connect the machine to a Bluetooth network. 
USB Host (option):  
This is for the connection of an external device (digital camera etc.). 
I/F Slot Item 
Slot A  IEEE 1394 or USB Host 
Slot B  IEEE 1284 or IEEE 802.11b or Bluetooth 
Slot C  File format converter 
 
HDD:  
3.5” HDD (40 GB) can be connected using the IDE interface. 
SD Card slots:  
ƒ  Slot 1: Boot SD card (standard printer/scanner application SD card) 
ƒ  Slot 2: Optional application (for PostScript 3, Data Overwrite Security Unit or 
PictBridge) 
ƒ  Slot 3: Firmware upgrade or Browser Unit (RDS – Ricoh Document Server)  
						

							 
B230/B237 6-82  SM 
6.14.2 HARD DISK 
Overview 
The capacity of the hard disk is 40 GB. The controller partitions it into several drives and 
allocates them for different functions. You can initialize these partitions as necessary (
 
SP5-832). The table lists the contents of the hard disk. 
Contents Capacity (MB) Volatile/ 
Nonvolatile Initialization 
(SP5-832) 
18,340 Nonvolatile 
Images (IMH) 
12,844 Volatile 002 
Thumbnails 2400 Nonvolatile 003 
Job Logs  200 Nonvolatile 004 
Printer fonts  500 Nonvolatile 005 
User information 300 Nonvolatile 006 
Mail RX data  200  Nonvolatile  007 
Mail TX data  1,000  Nonvolatile  008 
Designer data  512 Nonvolatile 009 
Logs 150 Nonvolatile - 
Net interfaces  500  Nonvolatile  011 
Volatile: The data is lost when you turn the main switch off. 
Nonvolatile: The data is not lost when you turn the main switch off. 
6.14.3 CONTROLLER FUNCTIONS 
Sample Print 
This feature was formerly known as “Proof Print.” This function gives users a chance to 
check the print results before starting a multiple-set print run. 
ƒ  The size of the hard disk partition for the sample print feature is 16.8 GB. This partition 
is also used by the collation and locked print features. 
ƒ  The partition can hold up to 100 files, including files stored using locked print. 
ƒ  The partition can hold a log containing up to 30 errors, excluding jobs stored using