
Part Printer
a) MPU (ICI)
Printer controller
is
by the
ROM
program to control
printer mode operations.
b)
ROM
Besides the printer hardware control program and font image data, the following data are
stored in the Control/CC ROM.
l
Emulation software
This is the control program for the printer, which can emulate either IBM Proprinter
EPSON LQ-2550.
l
Font image data
360 dpi character
data for each of the
cartridge nozzles.
When the printer is emulating IBM Proprinter
the character designs from
Character Set 1, 2, All Characters Chart, Code Page;
850 (Multilingual)/ 852
(East
Europe)/ 855
857 (Turkish)/ 860 (Portuguese)/ 863 (Canadian French)/
864 (Arabic)/ 865 (Norway)/ 869 (Greek) can be selected. When the printer is emulating
EPSON LQ-2550, the EPSON Italics Character Set, EPSON Graphics Set can be
selected, and the language chosen from the International Character Set.
l
Mask patterns in fine mode
c) Printer controller (IC5)
The main functions of the system controller as follows:
l
Interface
The centronics interface controller receives
parallel data sent from the computer in
synchronization with the data strobe pulse by BUSY
handshaking It controls
other interface signals. The data received from the interface are stored in the receive
buffer in DRAM, and is analyzed by the MPU. If the printer initialize signal
is
input to the printer
and MPU f
the interface, the printer controller
outputs the BUSY status immediately, and the MPU prints printing data stored in the
print buffer, then initializes
printer.
l
Buffer controller
The buffer controller automatically writes received data into the receive buffer in
DRAM, controls the remaining data in the receive buffer, reads data from the receive
buffer, and clears data after rending.
d) DRAM (IC4)
Besides the printer hardware
data storage area, the DRAM comprises the
following;
. Input buffer
Reception data from the
are
momentarily. The data are then analyzed
by the MPU, and
erased to
for the next data.
l
Printer buffer
Two
of BJ cartridge print data are stored. After being printed out, the data are
then erased to
room
data.
l
Download buffer
When emulating
IBM
besides the data stored in the ROM, font
data
transferred
the computer and stored.
2-6
Содержание C5000 - MultiPASS Color Inkjet Printer
Страница 1: ...MultiPASS C5000 SERVICE MANUAL Canon ...
Страница 5: ...REVISION I CONTENT 0 I Original ...
Страница 26: ...Chapter 7 General Description 3 1 External View Front View Figure 1 3 External View 1 l 11 ...
Страница 27: ...Part 1 Facsimile Rear View Inside the Printer Cover Figure 1 4 External View 2 1 12 ...
Страница 28: ...Part 7 Facsimile 3 2 Operation Panel The Operation Panel Document feed lever 0 0 0 0 1 14 ...
Страница 34: ...Part 1 Facsimile ...
Страница 36: ...Part 7 Facsimile r w Units mm r 0 4 0 0 Figure l 13 Dimensions l 22 ...
Страница 57: ...Chapter 1 General Description 5 3 3 Print assembly BJ Cartridge _ Figure l 20 Print Assembly Precautions l 43 ...
Страница 65: ...Chapter 1 General Description Waste Ink absorber Figure 1 23 Waste Ink Absorber 1 51 ...
Страница 92: ...Part 7 Facsimile Figure 2 18 Printing Signals HQ Mode 2 24 ...
Страница 93: ...Chapter 2 Technical Refereno 6 1 Component Block Diagram Figure 2 19 Block Diagram 2 25 ...
Страница 150: ...Part 1 Facsimile Figure 3 28 Print Pattern Sample 3 48 ...
Страница 164: ... Part 1 Facsimile a 2 System dump list a STSrn DlYP LIST t t tf t Figure 3 35 System Dump List l 2 3 62 ...
Страница 184: ...Part 1 Facsimile U Vertical alignment Correction l l l l 3 7 ...
Страница 194: ...Part 2 Printer 3 1 Interface Connector 81 DIRECTIONAL PARALLEL PORT Figure 1 4 Interface Connector l 10 ...
Страница 212: ...Chapter 3 Maintenance Service See Part 1 Facsimile Chapter 3 Maintenance Service for details REFERENCE 3 1 ...