File name 10e tm.rar
LED Page Printer
with Component Parts List
1999. 9. 24 Rev.1
41266201TH Rev.1 1 / 135
1. OUTLINE... 3
2. TOOLS ...3
3. CIRCUIT DESCRIPTION ...4
4. TROUBLESHOOTING ...36
5. CIRCUIT DIAGRAM ...56
6. COMPONENT PARTS LIST ...90
41266201TH Rev.1 2/
This manual has been written to provide guidance for troubleshooting of the OKIPAGE 10e Printer
(primarily for its printed circuit boards), based on the assumption that the reader has a thorough
knowledge concerning the printer. Read the maintenance manual for this printer, if necessary.
1. The power supply board containing a high voltage power supply is dangerous. From the
viewpoint of the safety standards, the local repairing of a defective board is not allowed. Thus,
the objects to be locally repaired as a result of troubleshooting are switches and fuses.
2. Replacement of CPU (MHM2029) is not recommended. If CPU is found to be defective,
board replacement is suggested.
For troubleshooting the printer, the tools listed below may be needed in addition to general
Extension cord kit P/N: 40581901
Oscilloscope Frequency response 100 MHz or higher
Soldering iron A slender tip type, 15-20 watts
41266201TH Rev.1 3/
3. CIRCUIT DESCRIPTION
The main control board controls the reception of data transferred through a host I/F and processes
command analysis, bit image development, raster buffer read. It also controls the engine and the
operator panel. Its block diagram is shown in Fig. 3-1 .
(1) Reception control
The OKIPAGE 10e Printer can be equipped with one I/F port by adding an RS232C I/F option
board in addition to the Centronics I/F on the main cont