Image Trouble - Ricoh PRIPORT VT 2000 Series Service Manual

2. TROUBLESHOOTING

2.1 IMAGE TROUBLE

1. No image, white lines, uneven image on copy
Does the image created on the master match the original?
No Yes
Not enough ink supplied to the drum?
No
Are drum screens clogged with dried ink? (Printer has not been
used for a long time.)
No
Has the ink inside the drum separated? (Ink was in storage for a
long time.)
No
Insufficient printing pressure applied to drum?
Sheet of paper wrapped under the master or two masters wrapped
around the drum?
No Yes
Remove the paper or the extra master from the drum.
Yes
No ink supplied even though ink supply solenoid is
energized?
No Yes
Check the ink detection circuit. (See page 5-72.)
Yes
Clean or replace the drum screens. (See page 5-73.)
Yes
Install a new ink cartridge.
Yes
Check the printing pressure mechanism.
Check the ink supply mechanism.
7-7
28 February '91