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HP Designjet 700 Series Printers - Switch Power Off Check Paper Path

	Parts required (part numbers are subject to change)
	Check and clear any obstructions to the paper path
	Test or Replace the X-axis Motor
	Check/Replace the paper spindle
	Check/Replace the Right Roll-feed assembly
	Accuracy calibration
	Verify functionality

KRS document number: BPP90042

Last updated: 22 Aug, 2001

Minimum skill level: 2

A shutdown has occurred along the printers X-axis (paper path). Common causes of this message are paper being loaded incorrectly, paper jams restricting platen movement, defective X-axis motor, or a defective Right Roll-feed assembly. Follow the steps listed below to determine and replace the defective part(s).

Parts required (part numbers are subject to change)

Part Description	Models - C4705A/B, C3195A, C4708A/B	Models - C3196A, C4709A/B, C3198A/B, C4706A/B
Right Roll-feed assembly (required)	C4704-60199	C4704-60199
X-axis motor (required)	C4705-60068	C4705-60068
Paper Spindle kit (required)	C2847-60093	C2848-60011

NOTE: Check the paper is not being loaded incorrectly (upside down), before continuing with the remaining steps listed in this document.

Check and clear any obstructions to the paper path

1. Check for jammed paper, if found continue with step two, if no jam is detected continue with testing the X-axis motor.
2. Slide the cartridge carriage out of the way toward either side of the enclosed ends of the printer.
3. Remove any of the jammed paper that is easy to lift up and out from the top of the printer.

NOTE: A manila folder can be used to remove jammed paper from the paper path.

4. Pull the rest of the roll or sheet paper down and out of the entry slot where the paper is loaded.
5. Check around the ends, front, and rear edges of the platen roller to verify that all of the torn paper is removed.
6. Lower the printers cover and the lever and then switch on the printer's power. After the printer initializes, press the FORM FEED AND CUT button to eject any pieces of paper that might still be in the paper path.
7. Reload the paper as normal. If using roll paper, trim the edge so the paper is straight before reloading, to avoid another paper jam.
8. If loading is successful, repeat loading procedure with both roll and sheet paper (preferably larger than 8.5 x 11 in) two times each, to prove product functionality. If functionality is proven no parts need to be replaced.
9. If loading is unsuccessful or problems persist, continue with testing the X-axis motor.

Test or Replace the X-axis Motor

1. In the Service Tests submenu, scroll to 22 X Motion Control and press ENTER.
2. The Remove Media / Press Enter message is displayed on the front-panel. Remove paper (if loaded) and press ENTER to start the test.
3. The Faster / Slower message is displayed. Use the UP arrow to increase the speed of the drive roller and the DOWN arrow to decrease the speed to the drive roller.
4. Press the ENTER button.
5. The X Max PWM = # / Press Enter message is displayed.
6. If the X Max PWM value (#) is less than 100 the test has passed, continue with checking the paper spindle.
7. If the X Max PWM value (#) is more than 100 the test has failed, continue with step 8.
8. Replace the X-axis motor.
9. Reassemble printer, and perform an Accuracy calibration (listed below).

NOTE: If paper loading is successful and the printer passes the accuracy calibration, no other parts need to be replaced.

Check/Replace the paper spindle

1. Remove the paper spindle from the printer.
2. Check the right side of the spindle for damaged or missing teeth. Replace the spindle if needed.
3. If the spindle is replaced, load paper onto new spindle, and try reloading paper.
4. If loading is successful, repeat loading procedure with both roll and sheet paper (preferably larger than 8.5 x 11 in) two times each, to prove product functionality.
5. If loading paper is unsuccessful, or no problem is found with the paper spindle, continue with the remaining steps.

Check/Replace the Right Roll-feed assembly

1. Remove the Paper Spindle from the printer.
2. Check the Right Roll-feed assembly for ease of rotation, and for damaged or missing teeth. Use the eraser end of a pencil to move the Roll-feed assembly.

NOTE: The Right Roll-feed assembly gear should be very hard to rotate.

3. If the Roll-feed assembly moves easily, does not move at all, or damaged or missing teeth on assembly are noticed, replace the right roll-feed assembly.
4. After replacement of the Right Roll-feed, reassemble the printer to verify functionality.

NOTE: No calibrations are required if the Right Roll-feed assembly is replaced.

5. Verify printer functionality. Perform paper loading procedure with both roll and sheet (preferably larger than 8.5 x 11 in) paper, two times each.
6. If paper loads correctly, the problem has been solved.
7. If no problems with the Right Roll-feed assembly are noticed or the problem is not solved, continue with the remaining steps.

Accuracy calibration

1. Place a sheet of polyester film over the top of the printer for approximately 10 minutes to let it stabilize to the environmental conditions. Use a sheet of approximately D-size (61 x 91 cm, 24 x 36 in). Roll paper may also be used. When using polyester film, load it with the matte (dull) side down.

NOTE: If a polyester or matte film is not available, use HP Coated paper when performing an Accuracy calibration.

2. Remove all paper already loaded in the printer before performing the calibration.
3. Press ENTER at the Status display.
4. Use the arrow buttons to scroll to the Utilities menu, and press ENTER.
5. Simultaneously press the ENTER and UP arrow buttons to access the Service test submenu.
6. In the Service Tests submenu, scroll to 3C Accuracy Cal, and press ENTER.
7. The message, Create pattern/measure pattern appears.
8. Press the UP arrow button to select Create pattern.
9. The message, Status/Calibrating appears while the printer is calibrating.
10. When the printer has finished calibrating, the message, Load media for calibration appears.
11. Load the paper. If using D-size paper, load the short edge as the leading edge in D-size printers and the long edge as the leading edge in E-size printers.
12. When the paper is loaded, the printer will automatically begin to plot the pattern.
13. A message, Status/Printing appears while printing.
14. Remove the paper when the printer is finished printing.
15. The message Create pattern/Measure pattern appears.
16. Press the DOWN arrow button to select Measure Pattern.
17. Rotate the plot so the edge with the arrows point toward the printer, and reload the plot with the arrow edge print-side down.
18. The printer will load the plot and measure the alignment marks using the Line sensor on the Carriage.
19. If the calibration passes, the message, Success Calibration/Press Enter appears.
20. Press the PREVIOUS key until Ready is displayed on the printer's front panel.
21. Turn off and turn on the printer before verifying printer functionality.

Verify functionality

Print several internal prints (E or D size).

Copyright (C) Hewlett-Packard Co. 2001
This information is subject to change without notice and
is provided "as is" with no warranty.
Hewlett-Packard shall not be liable for any direct,
indirect, special, incidental or consequential damages
in connection with the use of this material.

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