Manual ep6001

The 1-sided copy is turned over and fed into the Duplex Unit. The 1-sided copies are stored and then taken up one by one for the second copy cycle. Paper Exit Roller drive pulley. Toner Conveying Screw drive gear. PC Drum drive coupling pawl A. Developing Unit drive coupling gear 2. Scanner drive pulley. Multi Bypass Take-Up drive gear. Transport Roller drive gear. Synchronizing Roller drive gear. Duplex Take-Up mechanism drive gear. Vertical Transport Roller drive gear. Duplex Vertical Transport Roller drive gear.

OFF M2, M3. The Scanner starts a scan motion. OFF SL6. SCAN signal: H The Scanner stops and starts a return motion. OFF Developing Bias. OFF M3. OFF M6. The watchdog function monitors whether any of the CPUs mounted in the copier overrun. If this function detects that a CPU overruns, the copier automatically resets the CPU, thereby restarting the logic circuit and mechanism. Even if a copier CPU operates erratically due to electrical noise, therefore, the copier is able to recover from the faulty condition so that the number of visits made by the Technical Representative for CPU overrun can be minimized.

The following processing is performed if a faulty condition is detected in the CPU. The Watchdog Counter available from the Tech. The isolated. When a sixth isolated malfunction occurs, the copier considers it as a normal malfunction, prompting a Tech.

The sixth malfunction is shown on the Touch Panel. For C0b10 to 13, C0b51, and C0b70, they are handled as isolated malfunctions only when detected during initial motion. They are normal malfunctions if they occur during a copy cycle. The following image stabilization controls are provided to ensure stabilized copy image. The sensor is used to detect the toner density and background level on the PC Drum.

The phototransistor outputs a voltage corresponding to the intensity of the light reflected back. The intensity of the light emitted by the LED is controlled by varying the pulse width as shown below.

This adjustment corrects part-to-part variations in the AIDC Sensor installation, sensitivity, deterioration, etc. The 4-bit analog switch output is variable in 16 different steps.

The 4-bit analog switch position is fixed when the voltage of A exceeds 1. The pulse signal pulse width is selected when the voltage is more than 1.

The following four different types of controls are provided for the optimum Exposure Lamp voltage correction. Control 3 is not provided if the input to pin 79 of IC1A is outside the specified range 3. The adjustment value should fall within the range 50 to 82V, in 1V increments. V L is varied so that voltage A becomes 1. Lamp Manual Adj. Choice changed. V L is increased 1V at a time so that voltage A becomes 1.

This is done for every copies made after the Power Switch has been turned ON. The output from the AE Sensor which detects the original image density in the Auto Exposure mode varies depending on the intensity of the LA1 light.

The AE Sensor gain is therefore adjusted in proportion to the setting or correction of the optimum Exposure Lamp voltage. The following two different types of controls are provided. When the F5 operation is run, the optimum Exposure Lamp voltage is set corrected. The AE Sensor gain is varied so that the above voltage becomes 1. After the exposure correction has been made, LA1 is turned ON to illuminate the halftone patch on the back of the Original Width Scale with the Exposure Lamp voltage which has undergone the correction.

The AE Sensor gain is adjusted so that the above voltage becomes the voltage value stored in memory when F5 was run and the pulse signal pulse width at that time is taken. The PC Drum deteriorates with age, resulting in its surface potential being reduced.

To compensate for it, the following controls are provided according to the period of time over which the PC Drum has turned. When the copier detects a faulty AIDC Sensor [if adjustments of and are not possible], it drops the AIDC Sensor control and, instead, provides the following controls for stabilized image. This photoconductor exhibits greatest light fatigue after being exposed to light over an extended period of time.

It must therefore be protected from light by a clean, soft cloth whenever the PC Unit has been removed from the copier. Further, use utmost care when handling the PC Drum to prevent it from being contaminated.

This transmits the drive from M5 to the PC Drum. M5 is energized at different timings depending on which drawer the paper is fed from. Timer value T1, which is the period between the press of the Start Key and the energization of M5, varies with the paper source as listed below. This ensures that the PC Drum turns for a given period of time for each copy cycle regardless of the paper source.

M5 is deenergized approx. The PC Drum ground point is inside the rear end. This provides for assured grounding of the PC Drum through the Ground Plate in the rear to the frame of the copier.

It is a panel heater that prevents condensation from forming on the surface of the PC Drum. The power cord is plugged in the wall outlet. DC-6kV flows through the two wires and a corona emission begins. A grid voltage V G is applied to the two grid meshes, thereby ensuring that the charge level is maintained evenly across the entire surface of the PC Drum. For more details, see page M It effectively removes from the wires any toner and dust particles which would otherwise cause uneven charging.

A grid voltage according to the Grid Control pulse is applied to the two grid meshes. Since there is a potential difference between the grid mesh and PC Drum at this time, the negative charge of the corona emission flows through the grid mesh to the surface of the PC Drum, resulting in the surface being charged to a relatively even level by the 1st Scorotron Unit.

During this time, the PC Drum is being charged and its surface potential remains low. The potential of the PC Drum then becomes equal to that of the grid mesh i. When the PC Drum potential equals the grid mesh potential, the DC negative corona current flows through the grid mesh though HV1 to the ground. The surface of the PC Drum will therefore never be charged above the given level.

The PC Drum Charge Corona is provided with a mechanism that automatically cleans its two corona wires. It effectively removes from the wires any toner and dust particles which would otherwise cause uneven charging, white streaks on copies, and charge leak.

This in turn moves the Cleaner mounted on the Screw Shaft. The cleaning function is, however, disabled if the "Charge Wire Cleaning" function of "System Input" available from the Tech. Welcome to ManualMachine. We have sent a verification link to to complete your registration.

Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. G-1 2. G-2 3. G-3 4. G-7 5. G-8 6. G-9 7. G 8. G 9. M-1 2. M-3 3. M-5 4. M-7 5. M 6. M 7. M 8. M 9. Function of Exposure Components. Scanner and Mirrors Carriage Moving Mechanism. Construction of the Original Size Detecting Sensor. Paper Dehumidifying Heaters.

Vertical Transport Drive Mechanism. Exposure Lamp LA1 6. Lens 8. Cleaning Blade Main Erase Lamp LA2 PC Drum Charge Corona Image Erase Lamp LA3 Toner Suction Fan Motor M20 Developing Unit Manual Bypass Take-Up Roll Transport Roller Synchronizing Roller PC Drum Suction Unit Fusing Unit Web Roller Lower Fusing Paper Separator Finger Fusing Unit Transport Roller Paper Exit Roller Turnover Drive Roller Ventilation Fan Motor M19 Gate 2 Transport Roller Gate 1 Transport Roller Duplex Paper Take-Up Roll United states senator from kansas for the fourteen years from to Find Ab coaster pro for exercise and fitness equipment.

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If the installation location cannot bear the weight of the unit, the unit could fall causing. This is the same type of service manual your local dealer will use when doing a repair. Find all our Holden workshop manuals and factory service manuals listed above, all our Holden manuals are free to download.

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You might be a technician who intends to seek references or address existing troubles. S Look for and replace damaged or loose.