Monday, January 04, 2016

HP Color LaserJet CP3000 - CP3600 - CP3800 - CP3505 Service mode Print quality check and engine test – Printer repair

Category: Printer Repair and service  

Contents of this article 

  • How to access service mode 
  • Paper path test
  • Engine test 






HP Color LaserJet CP3000 - CP3600 - CP3800 - CP3505 

Service menu
Using the Service menu
The Service menu is PIN protected for added security. Only authorized service technicians have access to the Service menu. When you select SERVICE from the list of menus, you are prompted to type your 8-digit PIN number. The following are the appropriate PIN numbers:
HP Color LaserJet 3000 Series printers: 11300005
HP Color LaserJet 3600 Series printers: 11360005
HP Color LaserJet 3800 Series printers: 11380005
HP Color LaserJet CP3505 Series printers: 06350507
1. Press Menu to open the MENUS.
2. Press DOWN to highlight SERVICE, and then press TICK BUTTON.
3. Press DOWN or UP until the first digit of the PIN appears.
4. Press TICK to save the digit. The control-panel display replaces the digit with an asterisk.
Press at RETURN BUTTON any time to move to the previous digit.
5. Repeat steps 3 and 4 until all eight digits are typed.
Print the print-quality (PQ) troubleshooting pages
The PQ troubleshooting pages are print-quality assessment pages that you can use to troubleshoot print-quality problems. Follow the instructions on the first page of the print-quality troubleshooting pages to solve print-quality problems.
1. Press Menu to open the MENUS.
2. Press DOWN to highlight DIAGNOSTICS, and then press TICK.
3. Press DOWN to highlight PQ TROUBLESHOOTING, and then press TICK.
The message PRINTING... PQ TROUBLESHOOTING appears on the control-panel display until the printer finishes printing the PQ troubleshooting pages. The printer returns to the Ready state after printing the PQ troubleshooting pages.
Disable cartridge check (special mode test)
Use this diagnostic test to print internal pages or send an external job to the printer when one or more print cartridges are removed or exchanged. Because the cartridges are not keyed, the diagnostic test can be run when one to four cartridges have been removed or moved to another location (exchanged). Consumable supply errors are ignored while the printer is in this mode. When the printer is in this mode, you can navigate the menus and print internal pages or send an external print job to the printer. This diagnostic test can be used to isolate print-quality problems that are related to individual cartridges and to isolate individual cartridge problems, such as noise.
1. Press Menu to open the MENUS.
2. Press DOWN to highlight DIAGNOSTICS, and then press TICK.
3. Press DOWN to highlight DISABLE CARTRIDGE CHECK, and then press TICK.
To exit this diagnostic test, press Stop and then select EXIT DIAGNOSTICS.
Paper-path sensor test
This test shows the status of each paper-path sensor.
1. Press Menu to open the MENUS.
2. Press DOWN to highlight DIAGNOSTICS, and then press TICK .
3. Press DOWN to highlight PAPER PATH SENSORS, and then press TICK .
4. Print an internal page, and observe the status of the sensors as the page moves through the printer
Paper-path test
This diagnostic test generates one or more test pages that you can use to isolate the cause of jams. 
To isolate a problem, specify which input tray to use, specify whether to use the duplex path, and specify the number of copies to print. Print multiple copies to help isolate intermittent problems. The following options become available after you start the diagnostic feature:
# PRINT TEST PAGE. Run the paper-path test from the default settings: tray 2, no duplex, and one copy. To specify other settings, scroll down the menu and select the setting, and then scroll back
up and select PRINT TEST PAGE to start the test.
# SOURCE. Select tray 1, tray 2, or optional tray 3.
# DUPLEX. Enable or disable 2-sided printing.
# COPIES. Select the number of sheets to use during the test.
1. Press Menu to open the MENUS.
2. Press DOWN to highlight DIAGNOSTICS, and then press TICK .
3. Press DOWN to highlight PAPER PATH TEST, and then press TICK .
4. Select the paper-path test options when the printer prompts you.
Manual sensor test (special mode test)
Use this diagnostic test to test the printer sensors and switches.
NOTE: To eliminate the flickering on the control-panel display during this test, leave the door switch in the open state.
1. Press Menu to open the MENUS.
2. Press DOWN to highlight DIAGNOSTICS, and then press TICK.
3. Press DOWN to highlight MANUAL SENSOR TEST, and then press TICK .
To exit this diagnostic, press the Stop button, and then select EXIT DIAGNOSTICS.
Menus cannot be opened during component tests, so serves the same function as the Stop button.
Component test (special mode test)
Use the component test to exercise individual parts independently to isolate problems.
Each component test can be performed once or repeatedly. If CONTINUOUS is selected from the drop down menu as the repeat option, the test will cycle the component on and off. This process continues for 2 minutes, and then the test ends.
NOTE: The door interlock switch must be defeated to run any of the component tests. If covers are removed, the door switch must be manually cycled during some tests in order for the engine to recognize a change. The ETB assembly can be open, closed, or removed while some of these tests are executing. Print cartridges can be installed or removed during certain tests. The control-panel display prompts for
the removal of some or all of the cartridges during certain tests in order to rotate and isolate certain components, and to protect the cartridges and ETB.
1. Press Menu to open the MENUS.
2. Press to highlight DIAGNOSTICS, and then press .
3. Press to highlight COMPONENT TEST, and then press .
4. Select the component test options when the printer prompts you.
Menus cannot be opened during component tests, so serves the same function as the Stop button. You can perform the following component tests:
# Transfer motors. This test turns the components that are involved in the image-transfer process: the cartridge motors, the ETB motor and belt, and the print cartridges (if the ETB is closed). You can remove or install print cartridges during this test.
# Belt only. This test turns only the ETB motor and belt. The control-panel display prompts you to remove the cartridges because the ETB belt contacts the photosensitive drums and cannot turn without them also rotating the drums. Rotating the photosensitive drums can damage the belt or photosensitive drums. If covers are removed, you must manually activate the door switch after removing the cartridges in order to run the test.
# Cartridge motors. This test rotates only the print-cartridge drive motors. The control-panel display prompts you to remove at least one cartridge because the ETB belt contacts the photosensitive drums and cannot turn without also rotating the drums. The engine rotates the cartridge motor(s) for only the cartridges that are removed. To rotate all motors sequentially, remove all of the cartridges; to isolate one motor, remove only that cartridge. If covers are removed, you must manually activate the door switch after removing the cartridges in order to perform the test. Always start this test with all of the cartridges installed, and activate the door switch so that the printer recognizes the configuration. Then you can proceed with the test by removing one or more cartridges.
# Black, Magenta, Yellow, Cyan laser/scanners. Use these tests to rotate each scanner motor individually.
# Fuser motor. Use this test to rotate the fuser motor and drive gears.
# Fuser pressure release motor. Use this test to rotate the fuser pressure-release motor.
# Alienation motor (also called the developing disengaging motor). This test moves the developing disengaging motor, clutches and gears, and plates through their positions.
# ETB contact/alienation. This test activates the ETB motors and solenoid.
# Tray 1 pickup solenoid. This test activates and releases the multipurpose tray (tray 1) pickup solenoid.
# Tray 2 pickup motor. This test activates and moves the tray 2 pickup motor and gear train.
# Tray 2 pickup solenoid. This test activates and releases the tray 2 pickup solenoid.
# Tray 3 pickup motors and solenoids. These tests run the same way as the tray 2 pickup motor and solenoid test.
Test pages
Engine test page
Print an engine test page to make sure that the printer is functioning. Use a small, pointed object to depress the test-page switch on the back of the printer.
PIC 

Formatter test
Print a configuration page to make sure that the formatter is functioning.
1. Press Menu to open the MENUS.
2. Press to highlight INFORMATION, and then press .
3. Press to highlight PRINT CONFIGURATION, and then press .
Half-self test
Perform a half-self test to determine which stage of the print process is malfunctioning.
1. Press Menu.
2. Press to highlight INFORMATION, and then press .
3. Press to highlight PRINT DEMO, and then press to print a demo page.
4. Open the front cover when the leading edge of the paper exits the printer.
5. Remove the print cartridges.
6. Open the print-cartridge drum shield to view the drum surface. If a dark and distinct toner image is present on the drum surface, then the two functions of the electrophotographic process are functioning (image-formation and development). Any failure is occurring in the transfer or fusing stage.