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HP Designjet 650C Series Printers - Switch Power Off Check Paper Path

	End of Support Drawer Statement
	Introduction
	Tools required
	Parts required (part numbers are subject to change)
	Troubleshooting steps
	Drop Detect Calibration
	Accuracy Calibration

KRS document number: BPP90061

Last updated: 28-Feb-2002

Minimum skill level: 2

End of Support Drawer Statement

Hewlett-Packard guarantees support for five years after the end of production of its' large format printers. Since the Designjet 650C has been out of production for a number of years, the parts and sub-assemblies may no longer be available to complete the repair. If the customer has a service agreement or contract follow normal contract call logging processes (regardless of parts availability).

If the printer is not covered by a service agreement or contract, notify the customer about parts availability issues that will limit the ability to perform printer repairs. Inform the customer about the benefits of HP's Trade Up program, and give them the Trade Up Web site http://www.hp.tradeups.com/login/login.asp. If the customer needs help in locating a local reseller, give them the reseller contact Web site at http://www.hp.com/usa/reseller/index.html. If the customer still requests service and parts are available, follow normal trade call logging processes to avoid escalation. If parts are unavailable for the needed service, do not log a CSO.

Introduction

A problem has occurred in the X-axis movement of the printer. The most probable causes include media jams, or a faulty X-motor. This document can aid in determining whether the error message is caused by printer malfunction or if caused by extraneous factors such as paper jamming. Follow the steps listed in this document to accurately determine the cause of the failure and to replace the appropriate parts.

Tools required

• Industry Standard
• Ohm Meter

Parts required (part numbers are subject to change)

Part Description	Part number - Models C2858A and C2858B	Part number - Models C2859A and C2859B
X-Motor Assembly (Required)	C2847-60221	C2847-60221
Interconnect PCA (Required)	C2858-60105M	C2858-60105M
Right Rollfeed Assembly (Required)	C4704-60199	C4704-60199
Overdrive Assembly (Required)	C4705-60121	C4706-60121
Overdrive Clutch Gear (Required)	C4705-60089	C4705-60089
Main PCA (Required)	C2858-69207	C2858-69207

NOTE: If any of the troubleshooting steps listed below solve the problem, attempt to verify printer functionality by printing several internal prints. If functionality is verified no additional parts should be replaced.

Troubleshooting steps

1. Turn the printer off.
2. Remove media if loaded.
3. Lift the media alignment lever up (Pinchwheel assemblies away from drive roller). Insert a Manila folder into media path.
4. Move folder in and out from the far-left side to the right side of paper path, checking for obstructions or uneven resistance.
5. Remove or address obstruction in media path before proceeding.
6. Turn the printer on.
7. At the Out of media prompt, load a sheet of media.
8. Run an internal print to check if error message returns.
9. If no error is reported, proceed to step 15.
10. If error message re-appears with sheet loaded, turn the printer off.
11. Remove media.
12. Check if overdrive can turn freely towards you. If not, check/replace the Overdrive clutch gear and Overdrive assembly.

NOTE: If the Overdrive Clutch or Overdrive assembly is replaced, perform the Drop Detect and Accuracy calibrations as listed below.

13. Ohm the X-motor, and replace if needed. If replaced perform an Accuracy calibration as listed below.
14. Replace Interconnect PCA if new X-motor assembly does not resolve problem. Perform an Accuracy calibration as listed below.
15. Run several internal prints to verify operation.
16. Remove spindle form roll feed brackets.
17. Check brake gear on Right roll feed assembly. Should be difficult to rotate. If will not rotate or turns freely, replace.
18. Check media roll itself for adhesion or foreign substance that would prevent media from unraveling freely from roll.
19. Close roll cover, check if will close completely. If not, check if diameter of media roll is excessive, thus preventing roll cover from closing completely or causing drag on roll as media unraveling.
20. Run several internal prints using roll media to verify operation.

Drop Detect Calibration

NOTE: Pen checking must be turned on. To verify, enter the printer setup menu, scroll to Pen Check and press ENTER. Make necessary changes. Press the PREVIOUS key to return to the main menu display.

1. At Status prompt, press ENTER.
2. Use the ARROW keys to scroll to Utilities and press ENTER.
3. Simultaneously press the ENTER and UP arrow keys to access the Service tests menu.
4. Use the UP arrow key to scroll to Drop det calib and press ENTER.
5. Display should prompt CALIBRATING.

NOTE: Calibration process can take 3-4 minutes.

6. The printer should now display SUCCESS CALIBRATION. Press ENTER to exit calibration.
7. Press the PREVIOUS key until back at the Status display.

Accuracy Calibration

1. Use a D-size sheet (24 x 36 inches) or 24-inch wide roll media for 24-inch models (C2858A and C2858B). Use a D-size sheet (24 x 36 inches) or 36-inch wide roll media for 36-inch models (C2859A and C2859B). For the best results use a polyester matte film.

NOTE: If polyester matte film media is not available, use HP Coated media when performing an Accuracy Calibration.

2. If using sheet media, load the SHORT edge as the leading edge on 24-inch models (C2858A and C2858B) and the LONG edge on 36-inch models (C2859A and C2859B)
3. Press ENTER at the Status display.
4. Use the ARROW keys to scroll to the Utilities menu and press ENTER. Set menu mode to FULL if not already in Full Mode.
5. Simultaneously press the UP arrow and ENTER keys to access the Service Test menu.
6. Using the ARROW keys scroll to Accuracy Calib and press ENTER.
7. Press the UP arrow key to select Create plot. A Creating calibration plot message will be displayed.
8. After creating the plot, the display will now read Ink drying xx sec.
9. Printer will cut or eject media after drying time.
10. Wait until the Remove media/Continue message appears, and remove the media.
11. Press the DOWN arrow key to Continue.
12. The display should now read Create plot/Measure plot.
13. Press the DOWN arrow key to select Measure plot.
14. Rotate the plot so that the edge with arrows point to the leading edge, reload the plot with print side DOWN.
15. The printer will load the plot and measure the alignment marks using the edge sensor on the pen Carriage.
16. Press the DOWN arrow key to continue when the Calibration done Continue message is displayed and the plot is ejected.
17. The Accuracy calibration is complete.
18. Turn the printer off, then on and verify functionality by printing several internal prints.

Copyright 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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