MUTOH ValueJet VJ-1324, Maintenance Manual, Page: 62 / 439

2.3 Troubleshooting Without Error Messages VJ1324E-M-02
2.3.3 Printing Problems P.2-48
6 Machine outputs all
black printing. 1. Check the connection of head FFC connectors on CR board Assy
side and print head side.
• Is head cable inserted obliquely?
• Is it locked securely?
Reconnect head FFC. "3.7.6 Replacing Print Head" p.3-
106
"3.7.4 Replacing CR Board Assy"
p.3-101
2. Is CR_FFC inserted obliquely?
Reconnect MAIN board Assy connectors
J7,8,9,10,11, and CR board Assy connectors
J1,2,3,4,5.
"3.4.4 Replacing MAIN Board
Assy" p.3-42
"3.7.4 Replacing CR Board Assy"
p.3-101
3. CR_FFC Assy may be damaged. Replace CR_FFC Assy . "3.11.3 Replacing CR_FFC" p.3-
154
4. Is print head damaged? Replace damaged print head Assy . "3.7.6 Replacing Print Head" p.3-
106
5. CR board Assy may be malfunctioning. Replace CR board Assy . "3.7.4 Replacing CR Board Assy"
p.3-101
6. MAIN board Assy may be damaged. Replace MAIN board Assy . "3.4.4 Replacing MAIN Board
Assy" p.3-42
7
Blocky printing
quality.
Blocky image printing.
CR line seems dotted.
White or black lines
appear.
1. Is working environment appropriate? Use machine under specified environment.
"9.5 Choosing a Place for the
Printer" p.9-4
2. Have you started printing immediately after initial charge?
Printing just after initial charge may cause
following symptoms.
• Printed line blurs.
• White lines appear.
In such cases, perform cleaning two or three
times and check printout again.
If symptoms remain even after cleaning, leave
machine unused for 1 hour or more. Then
perform cleaning again and check printout.
Operation Manual
Table 2-8 Symptoms, Check Items and Actions for Printing Problems (Continued)
No. Symptoms Check Item Action Reference