zcM1000 Troubleshooting  

No Power:

• Make sure unit is plugged in.
• Turn power switch on.
• Check fuse (120).
• Check transformer (111) for 12VDC output.
• Check continuity of switch. Must remove cover (101) and internal metal frame (501/502).
• Plug transformer into known good circuit board (504).

Display Shows "999":

• Turn photo sensor switch (560) off.
• Reset machine w/ “20” button (250).
• Press Feed button (249). If 999 appears, bad feed motor or motor driver.
• Press Cut button (248). If 999 appears, bad cutter motor or motor driver.
• To determine if it is a motor or driver, switch the feed and cutter motor plugs on the circuit board and re-test. If the problem travels with the motor, the motor is the problem. If it stays with the button, it is a motor driver/circuit board problem.

Won't Feed/Tape Jam:

• With machine turned off, manually roll the knurled feed roller (312). If it turns more than 1/8 of a turn, the gear (427) should be replaced.
• Remove the cutting head (550) and check for pieces of tape stuck on the blade or inside the cutter.
• Remove the silicon roller holder (533). Check machine and roller holder for tape. Check for missing,
  torn or cracked silicone rollers, replace.
• Check green, magnetic gear (528) on feed motor for slippage.
• Wipe down feed roller and blades with IPA.
• Make sure the blade is all the way down and the cutter pin slides into the slot on the blade, not under the
  blade.

Won't Cut/Gear Noise:

• Remove blade spring (257) from cutter head. Inspect blade guides (258/259) and housing (507) for wear and/or damage. Replace as needed.
• Inspect cutting blade (254) for wear.
• Remove front holder (518) and check for tape stuck in gears.
• Inspect gears for missing teeth/wear.