Designjet 820 mfp service manual

It is necessary to remove the Mirror Chassis to get access to the Mirrors for cleaning. The Camera Adjustment must be checked and if necessary readjusted after the replacement of the Mirror Chassis. NOTE: The mirrors are normally "Out of Focus", therefore small dust particles on the mirrors will not deteriorate the scanning result.

These may be cleaned with a damp micro-fibre cleaning cloth. Once all these procedures have been completed, the scanner will be ready to work correctly. When cleaning any part of the scanning area DO NOT use abrasives, acetone, benzene or fluids that contain these chemicals. Do not spray liquids directly onto the scanner glass plate or anywhere else in the scanner. Turn the scanner power off. Disconnect the scanner power cable.

Open the Guide Plate by pushing down on the left and right locking levers and flip it upwards to expose the scan area. Gently wipe the Glass Plate.

Clean the glass with a lint-free cloth and a mild, streak-free, glass cleaner. Dry the glass completely using a separate clean, dry lint-free cloth like the one provided with the maintenance kit. Clean the white background assembly. Wipe the white metal area with a lint-free cloth and a mild, streak-free, glass cleaner. Clean the platen rollers. Wipe the rollers with a lint-free cloth and a mild, streak-free, glass cleaner.

Dry the platen and rollers completely using a separate clean, dry lint-free cloth. Use the dust sheet to protect the Scanner when not in use. The scanner will overheat if covered while turned on. If the power has been turned on, and there is no message on the screen, try the following:.

If not, replace the PSU. See Power Supply Unit rev A on page The PanelPC issues a series of beeps which can be used to identify which part is failing.

Use the two troubleshooting flow charts to solve the problem:. Only for rev. Try the following:. See Hard Disk Drive rev A on page See DVD Drive on page Follow the steps in the flowchart below to quickly check if the touch screen fails:.

See LCD on page The following scanner messages are shown on the touch screen. They are all shown in the "scanner messages" window that pops up automatically if a message should be notified to the user, and the window can also be recalled manually by pressing the progress bar area of JETimage. Filter should be replaced at the same time. The lamp quality is electrically monitored and the warning appears after hours of usage. The scanner maintenance warning appears when scanner maintenance has not been performed for 30 days.

However, the frequency with which scanner maintenance should be performed depends on scanner usage. The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions. If you have an error code which is not documented in this Service Manual or you have an error which you cannot resolve, then report the error to the HP Response Center or the nearest HP Support Office.

When reporting the error, have the following information ready:. A flashing Diagnostic Indicator indicates an error condition. The first set of numbers in the error code refer to a part of the Scanner software or the Scanner.

No movement in camera position has been detected during vertical camera alignment. Check the camera. Please change switch setting. See Test 7: Complete Hardware Test on page 5. See Right Cover on page See Main Electronics Board on page See Test 7: Complete Hardware. See Main. Electronics Board on page See Camera Board. See Interface Board on page See Elevation Motor Driver Board on page See Driver Board Communication Test on page See Fan on page See Driver Board on page See Test 9: Camera Adjustment on page 5.

See Scanner Maintenance on page See Camera Board on page Please validate the combination for this scanner. When combining thick media handling paper guide in extended position with auto size detection, the size detection must be done separately by running a preview scan before the final copy or scan operation. Unable to delete the folder occurs during file browsing operations, typically if a folder is shared.

The paper frame was placed fully outside the scan image. Invalid scan coordinates. Please press the soft power button on the scanner to activate it. Press the soft Power button on the scanner to activate it. 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. Legal notices This document contains proprietary information that is protected by copyright. Warranty The information contained in this document is subject to change without notice. Electrostatic Discharge See Electrostatic Discharge ESD Precautions on page 65 for precautions you should take to prevent damage to the printer circuits from electrostatic discharge.

Safety Symbols General definitions of safety symbols are given immediately after the table of contents. ENWW iii. For information about using the product, see the corresponding user guide. Readership The procedures described in this Service Manual are to be performed by HP Certified service personnel only.

ENWW v. Table of contents 1 Troubleshooting Troubleshooting tips ENWW vii. ENWW ix. ENWW Troubleshooting tips 1. Image-quality problems If you have Image Quality problems in any prints, try the following: 1. Troubleshooting System Error Codes Chapter 2, System Error Codes on page 30 , contains a list of system error codes and their respective descriptions and recommended corrective actions. Test 1: Scanner Information This test displays general information regarding the scanner.

Test 5: Lamp Test This test checks the functionality of the Lamp and associated electronics. Test 6: Motor Test This test checks the functionality of the Stepper Motor and any associated electronics.

Test Switch Scanner to Test Mode. Test Noise Test The purpose of this test is to detect and locate the possible cause dust, dirt, scratches,.. Test Camera Adjustment Wizard This allows you to adjust the camera using a wizard that guides you through the complete process. Troubleshooting Issues The following guide will help you to find a solution to some typical problems that some customers may experience.

If the problem persists, try the solutions listed in the tables below. Then clean and my copy present in your calibrate the scanner see P 24 preview? By using the equally spaced? Upgrade system software irregular maybe No See Q4 only 1 line?

Replace great number of Camera Board regular spaced lines very close to each other and restricted to one side 1 camera only? ENWW Troubleshooting print-quality and copy issues 7. Clean and calibrate problem not the same clean and the scanner see P 24 on page 17 when I compare calibrated? Glossy Media for correct media this copy, the media profile selected profile for the should also be for Glossy Media. Use Glossy Media to reproduce a are printing on the Glossy original same type as the Yes C Create a new media profile see P 26 original?

Panel PC Hard Disk is full. No C Check that the margins that are set are not too big. Choose the result when correct Type of original "Map" for copying? Eventually go to Original Setup to fine adjust colors and sharpening. See also online help for more details - button with "? ENWW Troubleshooting print-quality and copy issues 9. Try to flattten the original in irregular? Try sharpening. If sharpness is different between Cameras, you may have a Focus Problem.

T: Check focus of cameras with Focus Adjustment Pattern. In the case of too low a vertical column between 2 resolution, jagged diagonal lines will columns? See Upgrade Scanner scanner firmware Firmware on page Perform to the latest version?

Replace the Camera Board if necessary. No See Q2. Also check Scanner Media Offsets. Wait till the program hangs? No Restart the system. An A0 color drawing big scanned at dpi will generate a file size of approx. In order to reduce file size, select TIFF - pack bits as format. You can reduce size even more by selecting JPEG format, but this format will reduce picture quality.

An A0 gray tone drawing scanned at dpi will generate a file size of approx. ENWW Troubleshooting general scanner issues No C We only recommend to use the built-in viewer for file viewing. Large format drawing files may not load correctly in other viewers due to file size. Try to scan a smaller original A4. Use the already mapped access connection previously mapped by another user in or delete the connection and map a the Panel PC?

If you are able to map the drive in this manner, you should also be able to map through the Panel PC. No C Use the correct user name and password. Insert DVD used? P 24 on page 17 and P 25 on page If that does not help, see Q5.

If that does not help, scanner or see Q5. Could not find No See Q3. No See Q4. Clean the scanner and system software then run Scanner Maintenance again to the latest see P 24 on page 17 and P 25 version? Yes T Check the camera. Check if there is power at the wall PC screen is black, and no fan- outlet. Check power cables between heard? Erase parameter block LEDs lit? Update the system software 3. Problem original a new piece of A4 Please check that paper edges are not paper at the bent or curled in any way.

Does this paper load? Driver Board 2. Power Supply Unit 3. Feed Motor 4. Original Sensors when activating Original Sensor 2. Main Board insert paper? Yes C Check the settings in the software for media loading. If it does, see do? Check if system software Error Codes reappears.

If it does, see to the latest P 23a on page LEDs blink? If to the white necessary, replace the Camera to background and Board. Upgrade the firmware background and glass plate, and 2. Check the Stitching Wire performed Scanner 3.

Check Camera Adjustment Maintenance? Lamp 2. Driver Board 3. Main Board Yes See Q2. Yes C See Q2. Replace Interface Cable System Recovery 2. Check for scratches. Deep scratches on the glass plate or background platen means replacement of the part. Calibration calibrate the correct and "as Insert the scanner maintenance sheet. The maintenance process is automatic and will also sheet for the include stitching. How color patch sheet is printed and can be do I validate?

In this way it can be determined whether the produced color map has passed. Normally it can be solved by running Scanner Maintenance, which will perform an automatic stitching adjustment. With thick originals it can be necessary to adjust the stitching stitching used for thick originals only, set this in scanner setup.

A visible stitching error should not be confused with the error message Error 32 - Could not stitch Camera A and B. To verify that the line is caused by dust, preview the image and inspect the preview using the viewing section buttons. Use Test 6: Motor Test to check work. Replace the Driver Board. Replace the Stepper Motor. Reseat the lamp cartridge. Ensure that the Driver Board is connected to the power supply unit.

Ensure that the lamp sensor and the Driver Board are functioning correctly. Ensure that the Guide Plate is closed and latched. Replace the Guide Plate. Clean the rollers with isopropyl alcohol. Replace the rollers. Ensure that the fan is correctly connected.

If the fan and driver board are working correctly, the problem could be related to the NTC Sensor. After reloading the software, set- up the system on the network again if necessary. Cleaning the Scanning Area The following parts must be cleaned using a soft lint-free cloth and a mild, streak-free, cleaning detergent.

Close the Guide Plate. Boot up fails The PanelPC issues a series of beeps which can be used to identify which part is failing. Use the two troubleshooting flow charts to solve the problem: No backlight and no display.

With power on, measure the red pins and the yellow pins of the power connector. Image fails Follow the steps in the flowchart below to quickly check an image problem: Touch screen fails Follow the steps in the flowchart below to quickly check if the touch screen fails:. System Error Codes for the Scanner Only Introduction The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions.

The Software Modules The first set of numbers in the error code refer to a part of the Scanner software or the Scanner. All scanner communication goes though this API.

There is a problem with the Interface Board. Use the list below to identify the failing Try the following: Camera Board. Use the following list to identify Try the following: the failing camera. Error Codes for the JetImage Software RIP When combining thick media handling paper guide in extended position with auto size detection, the size detection must be done separately by running a preview scan before the final copy or scan operation.

Cause Solution. Either disable the use of gray balance or attempt to create the file again. Cause Solution Unable to reserve the scanner. Check and see if any other application is using the scanner. Occurs during file browsing operations, usually due to a share issue. The folder must be empty occurs during file browsing operations. Cause Solution The windows printer driver for the currently selected printer is Try the following: not found. Cause Solution No scanner selected or selected scanner not present.

If the Try the following: scanner was turned Off during application start-up. Cause Solution No media profile selected for current printer. Prepare a Media Profile before performing the operation. Cause Solution No printer selected. Select a printer. Product number:. Warranty end date:. Warranty removed from product: This product was designated to be returned to HP.

Thus, the warranty has been removed from this product. Product sold by third party: This product was sold by a third party. Any warranty support needed would be completed by the third party that sold the product. Product has been exchanged: This product has been exchanged for a new or refurbished product. Please use the product number and serial numbers of the new product to validate warranty status.

Product sold without warranty: This product was sold by a reseller. Any warranty support needed would be completed by the reseller that sold the product. The serial number provided does not match the previously selected product. It matches the product:. Please return to the product information page and verify the numbers provided or try again later. Errors can be displayed in many formats. Please include all extra characters, such as hyphens or colons or periods as they appear within the number.

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