Gasboy CFN Series Diagnostic Manual - Manual (Page 308)

GASBOY CFN Series
8-16 0021
Printing appears light.
Possible Cause Checks Corrective Action
Worn out inked ribbon. Check if ribbon looks worn. Replace ribbon.
Improper head clearance. EPSON: None.
STAR: Self-test. Check head
adjust lever position Replace the receipt printer
mechanism.
STAR: Set head adjust lever
to standard position (see 8-
15)
Insufficient solenoid drive
circuit. EPSON: None.
STAR: Self test. EPSON: Replace the receipt
printer CPU board, if
replacing the printer
mechanism didn't fix problem.
STAR: Replace unit.
Printer is not printing when print key is pressed.
Possible Cause Checks Corrective Action
Unit is not ON. Check the unit power switch. Turn unit ON if OFF.
Not connected. Check connections. Make corrections if needed.
EPSON: No +24VDC. Measure +24VDC between
the brown (gnd) and gray
(+24) wires. Replace printer if +24VDC is
not measured at the power
supply.
STAR: Out of paper. Check to see if ALARM light
is on. Reload new roll of paper if
out.
Printer is off line. Check that ON LINE light is
on. Press ON LINE switch to put
printer online.
Front cover not on. Check ALARM light for
flashing. Mount front cover properly
and press the ON LINE
switch.
Printer jammed. Check ALARM light for
flashing Try to unjam printer. If
unjammed, turn the power off
and back on again.