Epson DFX-9000 - Page 123

Epson DFX 9000 Revision B
Troubleshooting Troubleshooting 116
Some dots are missing, or unnecessary dots are printed.
(NOTE: If the printed characters are uneven on their upper or
lower edges, refer to Page 117.)
Perform the following, checking for functionality after each step.
1. Clean or Replace the CES SCALE (p.159).
2. Check that the CARRIER CABLE UNIT is correctly connected to the ROM
BOARD and the PRINT HEAD.
3. Replace the CARRIER CABLE UNIT (p.189).
4. Replace the PRINT HEAD (p.152).
5. Replace the ROM BOARD (p.137).
The printout is spaced incorrectly. 1. Check that the APTC adjustment operates normally, and that the paper thickness
adjustment is properly set.
2. Perform the Bi-D adjustment (p.250).
3. Clean and lubricate the STAY SHAFT (Carrier oil pads (p.267).
4. Clean or replace the CES SCALE (p.159).
5. Check the CR drive belt (SP BELT) tension adjustment (p.220).
6. Replace the SP BELT (p.158).
7. Replace the SP MOTOR ASY (p.156).
8. Replace the ROM BOARD (p.137).
Printing-related failure Troubleshooting procedure