Fix thermal-pressure motor lock
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This tutorial[1] provides step-by-step instructions to replace a broken gear powered by the Thermal Pressure Motor. This process applies to most Riso Z-type (and beyond ) duplicators and is demonstrated here on an MZ1070. The error messages "T19-208" or similar codes such as "T19-XXX" may indicate the need for this replacement.
Overview
The gear in question is prone to wear over time. Replacement gears, such as part #612-10010, are commonly available on platforms like AliExpress or eBay. It is recommended to acquire the replacement part before beginning the procedure.