MUTOH Valuevet VJ-628X Maintenance Manual page 44

2.3 Troubleshooting Without Error Messages
No. Symptom
7 The page is printed blocky. 12. Is Cleaning wiper operating properly?
(Continued)
13. How is the condition of Cleaning wiper?
8 Images are printed unevenly. 14. Is the nozzle surface correctly wiped?
(Continued)
9 Lines in the CR direction look 15. Is T fence dirty?
split.(Continued)
10 White or black lines appear on 16. Does Pressure roller rotate smoothly while Pressure
printed media(Continued)
17. Is Pump motor rotating during cleaning operation?
18. Is Ink tube folded?
19. Is the rank of Head actually installed the same as the
2.3.3 Printing Problems
Table 2-8 Symptoms, Check Items and Actions for Printing Problems(Continued)
Check item
lever is raised?
Is ink discharged?
registered rank?
Action
• Check the operation in Wiper endurance
in the self-diagnosis function. Replace
Wiper unit if it does not operate properly.
• After wiping the surface of Cleaning wiper
with the attached Poly-knit wiper, perform
cleaning twice in a row.
• If Cleaning wiper is sticky with ink, replace
it with a new one.
Confirm the mounting status of Wiper, and fix it
correctly.
• Clean T fence.
• If T fence is still dirty after cleaning or
damaged, replace it.
If paper dust or pieces of paper is adhered
around Pressure roller, wipe it off with a soft
damp cloth.
• Correctly plug the connector of MAIN
board again.
• Replace MaintenanceAssy.
• Replace MAIN board.
• Replace Ink tube and see if the cleaning
operation makes the ink flow.
• When ink flow is confirmed, perform initial
ink charge again.
Input the correct Head rank.
VJ628XE-M-00
Reference
"5.11.10Endurance Running
Check Menu
Operation Manual
"3.10.7Replacing Maintenance
Assy
"3.10.6Replacing Cap Head
Assy
"3.6.8Replacing T Fence
Operation Manual
"3.5.10Replacing MAIN Board
"3.10.7Replacing Maintenance
Assy
"3.9.4Replacing Ink Tube
"5.9.2Parameter Update Menu
44