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Now downloading free:oki 4wplus tm

oki 4wplus tm free download

Service manuals and repair information about laser, dot matrix, label printer and ink jet printers of different makes: HP, Canon, Epson, Ricoh, Star, Xerox, Okidata

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File name:4wplus_tm.rar
[preview 4wplus tm]
Size:229 kB
Model:4wplus tm 🔎
Original:4wplus tm 🔎
Descr: oki Printers LED 4m_4wplus 4wplus_tm.rar
Group:Electronics > Computer equipment > Printers
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File name 4wplus_tm.rar

OKIPAGE4w LED Page Printer Troubleshooting Manual with Component Parts List (ODA/OEL/INT) APPROVAL All specifications are subject to change without notice. CONTENTS 1. OUTLINE... 1 2. TOOLS ... 1 3. CIRCUIT DESCRIPTION ... 2 4. TROUBLESHOOTING ... 21 5. CIRCUIT DIAGRAM ... 27 6. COMPONENT PARTS LIST 1. OUTLINE This manual has been written to provide guidance for troubleshooting of the OKIPAGE4w Plus Printer (primarily for its printed circuit boards), on an assumption that the reader is knowledgeable of the printer. Read the maintenance manual for this printer P/N M-521426 if necessary. Note: 1. High voltage power supply board and power supply unit 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. TOOLS For troubleshooting the printer, the tools listed below may be needed in addition to general maintenance tools. Tool Remarks Oscilloscope Frequency response 100 MHz or higher Soldering iron A slender tip type, 15-20 watts Extension code kit P/N : 40105501 -1- 3. CIRCUIT DESCRIPTION 3.1 Outline The circuit of OKIPAGE4w Plus consists of a main control board, a high voltage power supply board and a power supply unit. The block diagram is shown in Fig. 3-1. The main control board controls the reception and transmission of data with a host I/f and processes command analysis, bit image development, raster buffer read. It also controls the engine and high voltage outputs. (1) Reception and transmission control The main control board has one parallel I/F port which is compliant to the IEEE 1284 specification. An interface task stores all data received from the host into a receive buffer first, and returns the printer status upon request of the host. (2) Command analysis processing The OKIPAGE4w Plus printer has the following emulation mode. Hiper-W: OKI original An edit task fetches data from the receive buffer, analizes commands, and sets I/O registers. (3)

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