This service manual provides basic information required for performing field service to maintain the product quality and functions of the this machine. The structure of the manual is as described below.
Each chapter consists of the following sections.
Chapter 1, “Introduction,” : Features, specifications, operation methods, copying process.
Chapter 2, “Basic operation,” : Explanation of the machine’s basic operations
Chapter 3, “Exposure system,” : Explanation of the exposure system’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 4, “Image processing system,” : Explanation of the CCD, analogue / digital image processing, disassembly, assembly and adjustment methods.
Chapter 5, “Laser exposure system,” : Explanation of the laser exposure system’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 6, “Image formation system,” : Explanation of the image formation system’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 7, “Pick-up / Feed system,” : Explanation of the pick-up / feed system’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 8, “Fixing system,” : Explanation of the fixing system’s mechanical / electri-cal system operating principles, timing, disassembly, assembly and adjustment meth-ods.
Chapter 9, “Outer cover / auxiliary control system,” : Explanation of the outer cover / auxiliary control system’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 10, “Cassette feeder,” : Explanation of the cassette feeder’s mechanical / electrical system operating principles, timing, disassembly, assembly and adjustment methods.
Chapter 11, “Installation,” : Conditions relating to the place of installation, and the installation procedures.
Chapter 12, “Maintenance and Inspection,” : Table of periodic replacement parts and consumables replacement targets, periodic service list and parts to be cleaned during a customer service call.
Chapter 13, “Troubleshooting,” : Standards / adjustments, operation failure counter-measures and delivery failure countermeasures
Appendix : General timing chart, general circuit diagram, etc..
The explanations in this manual are based on the following principles.
1. Each chapter gives an overview of each function's purpose, role and the connection between the electrical and mechanical systems as well as the operation timing of each part.
In the outline diagram, the signal shows the mechanical drive transmission.
When the signal is shown with a signal name, it indicates the electric signal flow.
In the explanation of this units digital circuit, “1” is indicated when the signal's volt-age level is high, and “0” is indicated when it is low. However, the voltage value will differ depending on the electrical circuit. Furthermore, the * in the signal value [DRMD*] shows the DRMD signal is “0” and ON.
In each chapter, [Power supply ON] indicates the power supply SW has been turned "ON", the front door, etc., has been shut, and power is being supplied to the copier.
2. This unit utilizes micro processors, however, due to the impossibility of checking the micro processor's internal operation, an explanation of the micro processor's opera-tion has been omitted. Furthermore, assuming that internal repair of the print circuit board will not take place on the customer's premises, the explanation of the circuit in
the print circuit board's circuit is limited to an outline explanation using a block dia-gram.
Consequently, the electrical circuit explanations consist of 2 types, from the sensors to the main circuit board’s input section, and from the main circuit boards' output section to the load, and block diagrams by function.
FORMAT: High resolution PDF document!
ZIP archive: 3 446 kB
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We are in business since 2002 and do our best to give our customers perfect service!
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| Paul Jumbo | 2019-04-19 18:47:57 | I had Epson WF-2650 and it wasn't printing fully, skipping lines, even though colors were full.
I did a lot of cleaning, head cleaning, put new cartridge but no luck. I did some head cleaning using glass cleaner and syringes as shown on various youtube video.
After that, my printer didn't recognize two of the cartridges. I tried everything, cleaning contacts etc, nothing worked.
I was finally going to buy new cartridges however stores were closed today so I decided to look for chip-resetting tool but nothing good was available locally.
I came across this WIC reset utility and was really skeptical if it will work. I took the chance, bought the key, used the tool to reset firmware to chipless firmware, it was successful at the first go.
At this point, printer showed all ink levels 100%. I printed a test page and it came out perfect.
To make it even more interesting for me, I live in Europe and during one of the trip, I bought two sets of XL cartridges for this same model but printer didn't recognize in the past and I was going to throw them since these were no good for my EU model. I tried these again after chip reset firmware and voila, they works too.
I am amazed at the propaganda of these printer manufactures that even original printer cartridges from US didn't work on the model here in EUROPE, these used to fit perfectly but printer wouldn't recognize however, now they works too.
Today, I was almost ready to trash my 2.5 yr old and not much used printer but after a lot of trying and finally using WIC reset utility, the printers works like new and saved me a lot!
These were the best 20 CHF/USD I spent today!
Thank you very much and I don't need to worry about relying on a hardware chip-reset tool. I will now be able to use US model cartridges and re-fill i like without having to worry. I even printed some photos using this same printer on photo paper today and printer did an excellent job. | |  | andi ahmad | 2019-12-11 06:01:36 | | my printer blinking red light solve problem
help this problem
thanks for solve this problem | | | tanveer haider | 2004-10-22 11:15:44 | | i need services manual all canon product. I need strat new workshop, there i always services & repair canon copier | | | Nali Nole | 2019-03-29 14:20:12 | | Hello, excellent application. I dont have to buy a new printer:) Thank you very much | | | Jean-Louis Boulin | 2020-08-03 18:51:10 | | Good job THX ! My Epson ET-2550 working again
Best regards | | | Nary Preng | 2008-02-07 19:36:04 | | I want to know this program before i buy it. Can you explain me about your program i had many problem with my printer of Epson R270. | |
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