Toshiba DP120F Service Manual page 330

2.4.4 GDI Print
(1) The document data (coded data) sent from the PC is input to the PC interface of the PTC
GA (IC45) through the PC I/F PBA.
(2) The coded data is transferred to the PIX-DRAM (IC25).
(3) The coded data is transferred through the CODEC interface of the PTC GA to the CODEC
(IC51) where it is decoded to raster data. Then the raster data is transferred to the PIX-
DRAM.
(4) The raster data is transferred to the PTC interface of the PTC GA.
For a print resolution of 300dpi or under, go to step (5).
For a print resolution of 600dpi, go to step (6).
(5) The raster data is serially transferred to the EET (IC39) where it is smoothed. Then the
raster data is serially transferred to the PTC interface of the PTC GA.
(6) The raster data is converted to print data by the PTC interface and sent to the LSU. The
LSU is driven according to the received print data for printing on the recording paper.
March 2000 © TOSHIBA TEC
Fig. 7-2-7
7-21 DP120F/DP125F Circuit Description
07-02-07