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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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This service manual for the Kenwood KT-990D was reproduced really well ,is very legible and manual is complete.Combined with the low price paid,in the future,I will be checking Owner-Manuals.com any time I need a manual.
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When I purchased this manual I had my doubts regarding the quality as the price was so reasonable as compared to other outlets.
The manual itself is of high standard the print is very clear as are the diagrams. Obviously with the diagrams one has to zoom in otherwise it is to small to be able to read.
Overall I am very pleased with the company who delivered as they said and with the manual they supplied.
I occasionally require a manual and now having registered with this company I shall order from them in the future.
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I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
and by the six switches (SW600, 601, 602, 603, 604, 605) on the Paper Size Detection PCA for the HP LaserJet 4000 T, 4000 TN, 4050 T, and 4050 TN. While the Main Motor rotates, the Tray 1 Pickup Solenoid (SL102) is turned on, the Tray 1 Pickup Roller rotates, and a sheet of paper is fed into the printer. The paper passes the pre-feed roller, which compensates for the skew of the paper. After the top of page sensor (PS103) detects the leading edge of the paper, the horizontal synchronization signal (/TOP) is sent from the Engine Controller Board to the Formatter. After the Formatter receives the /TOP signal, the /VDO signal is sent; this synchronizes the leading edge of the image on the Drum with the leading edge of the paper. The paper goes through transfer, separation, and fusing stages, passes through the delivery unit, and is delivered to the Top Output Bin or Rear Output Bin. There are four photo-interrupters (PS102, PS103, PS106, PS501) in the paper path that detect the presence of paper. If the paper does not reach or pass these sensors within a prescribed time interval, the microprocessor on the Engine Controller Board notifies the Formatter of a paper jam.
Clutches and Sensors
See �Reference Diagrams� starting on page 7-84 for locations of switches, sensors, and clutches.
Paper Feed System 5-35
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