Pro 7900 and 9900 Field Repair Guide 10/6/10
1537 Error Printer Component, Software Item, LCD Display, Printer Button Page 218.
1537 Error
Note: The 1537 error code indicates that the Ink System Pressure Sensor reports low pressure.
Note: This error usually is caused by an Ink Cartridge that leaks pressure.
1. Test each Ink Cartridge for pressure leaks.
1. Place a tube on the Air Pressure Inlet for each Cartridge.
2. Blow gently into the tube to inflate the Cartridge.
3. A Cartridge with pressure leak will never fully inflate. A good Car-
tridge will stop accepting air, eventually.