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IMPORTANT THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN, AND IS FOR REFERENCE USE ONLY. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
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INTRODUCTION This Service Manual provides basic facts and figures needed to service the GP215/GP200 in the field. The GP215/GP200 is designed to accommodate fax and printer functions in addition to copier functions, and separate service manuals are available for each function; refer to the appropriate service manual as necessary.
• The machine is appreciably quieter than the existing models for a better office environment. • With the help of its power-saving design, the power consumption is 4 W or less* in sleep mode (about 1/25 of existing Canon models) and 57 W or less** in standby (about 1/4 of exist- ing Canon models).
2. COPYING PROCESS I. IMAGE FORMATION A. Outline The GP215/GP200 uses an indirect photographic method of reproduction and is constructed as shown in Figure 2-101. Copyboard glass Scanning lamp Lens Image processing assembly Primary charging Laser scanner assembly roller Developing...
3. OPERATIONS AND TIMING I. BASIC OPERATION A. Functional Construction The GP215/GP200 can be divided into seven functional blocks: pick-up/feeding system, original expo- sure system, image processing system, laser exposure system, image formation system, communication system, and control system. <Original exposure system>...
B. Outline of the Electrical Circuitry 1. Control Division The GP215/GP200’s electrical mechanisms are controller by the CPU on the PCBs shown in Figure 3- 102. See Table 3-101 for an idea of the functions of the CPU and the functions of the ROMs/RAMs and the ICs around the CPU.
(It also executes AE measurement.) 2. CCD/CCD Driver The GP215/GP200’s CCD is a linear image sensor consisting of a single line of 7500 photocells. The signals subjected to photoelectric conversion in the photocell unit are forwarded to the CCD drive circuit.
(BD) is used to generate such a start signal. The GP215/GP200 is designed to detect the edge of copy paper which has been re-picked up for two- sided/overlay copying to measure the discrepancy, if any, toward the rear/front.
The optical output of the laser (semiconductor laser) is affected largely by changes occurring in the ambient temperature. The GP215/GP200 uses a control mechanism which varies the laser drive current automatically to suit the ambient temperature, thereby ensuring a specific output.
3. OPERATIONS AND TIMING H. Primary Charging Roller Cleaning Mechanism 1. Outline The GP215/GP200 is equipped with a mechanism which automatically cleans the primary charging roller. The primary charging roller cleaning solenoid (SL1) is turned ON while the primary charging roller is rotating to butt the cleaning pad against the primary charging roller while, at the same time, the primary charging roller is moved back and forth in the axial direction of the primary charging roller.
VI. PICK-UP/FEEDING SYSTEM A. Outline The GP215/GP200 uses center reference, in which copy paper moves along the center of the pick- up/feeding assembly. The pick-up system consists of two cassettes (upper, lower) and the multifeeder. Copy paper from any of the cassettes or the multifeeder is controlled by the registration roller so that its leading edge matches the leading edge of the image on the photosensitive drum;...
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The Protocol Controller PCB converts printer commands from a personal computer to control the print- er system of the GP215/GP200 to support GP215/GP200-specific multiple cassette functions not found in a configuration consisting of a Multi Device Controller and a GP55/GP30F.
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3. OPERATIONS AND TIMING c. Scanner Board The Scanner Board reads images read by the GP215/GP200 for transmission to the host computer through a SCSI interface, and it has the following specifications: Interface SCSI- A3; 297 × 420 mm/11”×17” 279×432mm...
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Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT.1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV. CANON INC. Printed in Japan REVISION 0 (JULY 1996) [26313/30809] 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146 Japan...
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This publication is printed on 70% reprocessed paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0796S2.82-1...