Reception - Ricoh Bizworks 106 Service Manual

VIDEO DATA PATH

1.5.5 RECEPTION

Control Board
From the
network
N C U
Data from the line passes to the modem through the network control board (NCU)
and amplifier. After the modem demodulates the data, it passes through the DRAM
that works as the ECM memory to the Xipchip, which decompresses it into raster
image data. The raster image data then passes to the page memory for printing.
After a page of data has been stored in the page memory, it is sent to the
mechanical control board (MCB).
The MCB sends the control signal to the laser diode driver. Then, the laser beam
writes a latent image on the drum.
Limited substitute reception
If one of the following problems occurs during reception, the machine cannot print
the incoming message. After sending MCF, the received page is held in the page
memory until the problem is fixed. Then, the stored data is sent to the MCB as
print data. Until the problem is fixed, incoming calls are ignored, so only one
message can be stored using this feature.
• Paper end
• Paper jam
• Cover open
• Toner end
With the substitute reception normally found in other fax machines, incoming calls
are accepted until the memory fills up.
Xipchip
Amplifier M O D E M
P L D
Page Memory
(DRAM)
1-16
18 May, 1999
G E P C
M C B
Laser
Diode Driver
O P C D r u m
RECEPTION.WMF