xii
NovaJet 500/630/700 Series Service Manual
Internal ERROR “Encoder Sensor Failure” ..........................................................4-5
Internal ERROR “Paper Sensor Failure”.............................................................. 4-5
Internal ERROR “Auto-Sensor Failure”................................................................ 4-6
Internal ERROR “MPCB Failure”......................................................................... 4-6
Unrecognized Cartridges Error............................................................................ 4-6
Image Skews or Moves ...................................................................................... 4-7
Does Not Print.................................................................................................... 4-7
Ink Cartridge Misfiring......................................................................................... 4-7
Paper Skewing................................................................................................... 4-9
Printer Output is Banding (Horizontal) ................................................................ 4-9
Printer Output is Banding (Vertical) ..................................................................4-11
Printer Output is Banding (Horizontally and Vertically)...................................... 4-11
Keypad Locked-Up or Not Functioning Properly ............................................... 4-11
Noisy Operation ............................................................................................... 4-12
Line Quality Degraded ......................................................................................4-13
Fan Does Not Power Up................................................................................... 4-14
Media Take-Up Motor Not Operating, Sensor Works........................................ 4-14
Media Feed Motor Not Operating, Sensor Works ............................................. 4-15
Media Feed and Take-Up Motors Not Operating, Both Sensors Working.......... 4-15
Media Feed or Take-Up Sensor(s) Not Operating.............................................. 4-15
Initialization Troubleshooting (500 Series) ............................................................... 4-18
Initialization Troubleshooting (630/700 Series)......................................................... 4-20
Chapter 5 Assembly\Disassembly ...................................................... 5-1
Introduction............................................................................................................... 5-1
Remove the Left, Top, and Right Covers.................................................................... 5-2
Install the Left, Top, and Right Covers....................................................................... 5-6
Remove the Keypad and Display .............................................................................. 5-7
Install the Keypad and Display.................................................................................. 5-9
Remove Extra Memory (SIMM) ............................................................................... 5-10
Install Extra Memory (SIMM) .................................................................................. 5-11
Remove the MPCB (Main Printed Circuit Board) ..................................................... 5-11
Install the MPCB .................................................................................................... 5-14
Remove Power Supply, Cooling Fan, and AC Entry Module.................................... 5-15
Install the Power Supply, Cooling Fan, and AC Entry Module ................................. 5-17
Table of Contents (cont)
Chapter 4 Troubleshooting (cont)